temp stuff working

Added Onix Libraries
2024-07-16 12:29:23 +00:00 · 2024-06-25 22:37:42 +00:00
3783 changed files with 52830 additions and 141034 deletions
@@ -9,7 +9,7 @@
      ]
    },
    "fable": {
-      "version": "4.24.0",
+      "version": "4.0.6",
      "commands": [
        "fable"
      ]
@@ -25,12 +25,6 @@
      "commands": [
        "fake"
      ]
-    },
-    "dotnet-t4": {
-      "version": "3.0.0",
-      "commands": [
-        "t4"
-      ]
    }
  }
-}
+}
@@ -55,19 +55,17 @@ RUN \
   clangd-$clang_major

 # CMake
-RUN set -eux \
-  && apt-get update \
-  && apt-get install -y --no-install-recommends ca-certificates curl gpg \
-  && curl -fsSL https://apt.kitware.com/keys/kitware-archive-latest.asc \
-    | gpg --dearmor -o /usr/share/keyrings/kitware-archive-keyring.gpg \
-  && echo "deb [signed-by=/usr/share/keyrings/kitware-archive-keyring.gpg] https://apt.kitware.com/ubuntu/ $(lsb_release -cs) main" \
-    > /etc/apt/sources.list.d/kitware.list \
-  && apt-get update \
-  && apt-get install -y --no-install-recommends cmake \
-  && rm -rf /var/lib/apt/lists/*
+RUN \
+   curl -fsSL https://apt.kitware.com/keys/kitware-archive-latest.asc 2> /dev/null \
+   | gpg --dearmor - \
+   | tee /usr/share/keyrings/kitware-archive-keyring.gpg > /dev/null \
+   && echo "deb [signed-by=/usr/share/keyrings/kitware-archive-keyring.gpg] https://apt.kitware.com/ubuntu/ $(lsb_release -cs) main" \
+   | tee /etc/apt/sources.list.d/kitware.list > /dev/null \
+   && apt-get update \
+   && apt-get install -y cmake

 # Dotnet
-RUN apt-get update && apt-get install -y dotnet8
+RUN apt-get update && apt-get install -y dotnet7

 # Node
 ARG node_major=18
@@ -82,39 +80,13 @@ RUN mkdir -p /etc/apt/keyrings \
 # Emumba (deps)
 RUN apt-get update && apt-get -y install rapidjson-dev
 # Emumba
-ARG EMUMBA_DERIBIT_CONNECTOR_DEB_URL="https://api.bitbucket.org/2.0/repositories/bluetradesys/spark/downloads/emumba-deribit-connector-3.3.1-Linux.LICENSE_DISABLED.deb"
-RUN --mount=type=secret,id=bitbucket_access_token \
-  set -eux \
-    && apt-get update \
-    && TOKEN="$(cat /run/secrets/bitbucket_access_token)" \
-    && curl -fL -H "Authorization: Bearer ${TOKEN}" $EMUMBA_DERIBIT_CONNECTOR_DEB_URL -o /tmp/emumba-deribit-connector.deb \
-    && apt-get install -y /tmp/emumba-deribit-connector.deb \
-    && rm -f /tmp/emumba-deribit-connector.deb
+COPY emumba /emumba
+RUN dpkg -i /emumba/emumba-deribit-connector-3.3.1-Linux.LICENSE_DISABLED.deb \
+    && rm -r /emumba

 # Pcap
 RUN apt-get update && apt-get install -y libpcap0.8-dev

-# Databento (deps)
-RUN apt-get update && apt-get -y install libzstd-dev
-
-# Rakurai
-ARG RAKURAI_DEB_URL="https://api.bitbucket.org/2.0/repositories/bluetradesys/spark/downloads/rakurai-dex-connector_0.0.5_amd64.deb"
-RUN --mount=type=secret,id=bitbucket_access_token \
-  set -eux \
-    && apt-get update \
-    && TOKEN="$(cat /run/secrets/bitbucket_access_token)" \
-    && curl -fL -H "Authorization: Bearer ${TOKEN}" $RAKURAI_DEB_URL -o /tmp/rakurai.deb \
-    # Need --force-overwrite because rakuirai and emumba-deribit-connector both include the same
-    # spdlog headers.
-    && apt-get install -y -o Dpkg::Options::="--force-overwrite" /tmp/rakurai.deb \
-    && rm -f /tmp/rakuirai.deb
-
-# Docker in Docker
-RUN apt-get update && apt-get install -y \
-    docker.io \
-    docker-compose \
-    docker-compose-v2
-
 # Set up default executables (update-alternatives)
 RUN \
   update-alternatives --install /usr/bin/clang clang /usr/bin/clang-$clang_major 100; \
@@ -1,16 +1,15 @@
 {
-  "build": {
-    "dockerfile": "../docker/images/bluetradingsystems/linux_dotnet8_dev/Dockerfile",
-    "options": [
-      "--secret",
-      "id=bitbucket_access_token,src=${localWorkspaceFolder}/.secrets/bitbucket_access_token.txt"
-    ]
-  },
+  "dockerFile": "Dockerfile",
+  // Creates local dir to mount to HOME in docker 
+  "initializeCommand": "mkdir -p ${localEnv:HOME}/.bts/devcontainer-mounts/${devcontainerId}",
  "hostRequirements": {
-    "memory": "8gb",
-    "storage": "10gb"
+    "memory": "4gb",
+    "storage": "6gb"
  },
+  // "postCreateCommand": "/home/bts/spark/docker/sparkd/dev/devcontainer_post_create.sh",
  "containerUser": "bts",
+  "workspaceMount": "source=${localWorkspaceFolder},target=/home/bts/spark,type=bind",
+  "workspaceFolder": "/home/bts/spark",
  "updateRemoteUserUID": true,
  "shutdownAction": "none",
  // Note: If running multiple containers on the same host, each must use a
@@ -18,20 +17,31 @@
  // example, if 8000-8003 is taken, go with 9000-9003, then 10000-10003, etc.
  "runArgs": [
    "--shm-size",
-    "8gb"
+    "2gb",
+    "-p",
+    "8000:8000",
+    "-p",
+    "8001:8001",
+    "-p",
+    "8002:8002",
+    "-p",
+    "8003:8003"
  ],
  "mounts": [
-    "source=/var/run/docker.sock,target=/var/run/docker.sock,type=bind"
+    "source=${localEnv:HOME}/.bts/devcontainer-mounts/${devcontainerId},target=/home/bts,type=bind"
  ],
  "customizations": {
    "vscode": {
+      "settings": {
+        "clangd.arguments": [
+          "--compile-commands-dir=${workspaceFolder}/build/clang/debug"
+        ]
+      },
      "extensions": [
        "eamodio.gitlens",
        "llvm-vs-code-extensions.vscode-clangd",
-        "ms-python.python",
        "ms-vscode.cmake-tools",
-        "ms-vscode.cpptools",
-        "xaver.clang-format"
+        "ms-vscode.cpptools"
      ]
    }
  }
@@ -0,0 +1,4 @@
+#!/usr/bin/env bash
+
+this_dir="$(realpath "$(dirname "$(readlink -f "${BASH_SOURCE[0]}")")")"
+sudo dpkg -i "$this_dir/emumba-deribit-connector-3.3.1-Linux.LICENSE_DISABLED.deb"
@@ -207,23 +207,17 @@ dotnet_naming_symbols.parameters.applicable_accessibilities = public,internal,pr
 dotnet_naming_symbols.private_symbols.applicable_kinds = property,method,field,event,delegate
 dotnet_naming_symbols.private_symbols.applicable_accessibilities = protected,private

-# local symbols
-dotnet_naming_symbols.local_symbols.applicable_kinds = local
-
-# parameter symbols
-dotnet_naming_symbols.parameter_symbols.applicable_kinds = parameter
-
 # Naming styles

-dotnet_naming_style.pascal_case.required_prefix =
-dotnet_naming_style.pascal_case.required_suffix =
-dotnet_naming_style.pascal_case.word_separator =
-dotnet_naming_style.pascal_case.capitalization = pascal_case
+dotnet_naming_style.snake_case.required_prefix =
+dotnet_naming_style.snake_case.required_suffix =
+dotnet_naming_style.snake_case.word_separator = _
+dotnet_naming_style.snake_case.capitalization = all_lower

-dotnet_naming_style.camel_case.required_prefix =
-dotnet_naming_style.camel_case.required_suffix =
-dotnet_naming_style.camel_case.word_separator =
-dotnet_naming_style.camel_case.capitalization = camel_case
+dotnet_naming_style.private_snake_case.required_prefix = _
+dotnet_naming_style.private_snake_case.required_suffix =
+dotnet_naming_style.private_snake_case.word_separator = _
+dotnet_naming_style.private_snake_case.capitalization = all_lower

 dotnet_naming_style.user_types.required_prefix =
 dotnet_naming_style.user_types.required_suffix =
@@ -235,10 +229,6 @@ dotnet_naming_style.interface.required_suffix =
 dotnet_naming_style.interface.word_separator =
 dotnet_naming_style.interface.capitalization = pascal_case

-dotnet_naming_style.local.capitalization = camel_case
-
-dotnet_naming_style.parameter.capitalization = camel_case
-
 # rules
 dotnet_naming_rule.user_types.symbols = user_types
 dotnet_naming_rule.user_types.style = user_types
@@ -248,18 +238,14 @@ dotnet_naming_rule.interfaces.symbols = interface
 dotnet_naming_rule.interfaces.style = interface_style
 dotnet_naming_rule.interfaces.severity = suggestion

-dotnet_naming_rule.public_members.symbols = public_symbols
-dotnet_naming_rule.public_members.style = pascal_case
-dotnet_naming_rule.public_members.severity = suggestion
+dotnet_naming_rule.public_members_snake_case.symbols = public_symbols
+dotnet_naming_rule.public_members_snake_case.style = snake_case
+dotnet_naming_rule.public_members_snake_case.severity = suggestion

-dotnet_naming_rule.private_members.symbols = private_symbols
-dotnet_naming_rule.private_members.style = camel_case
-dotnet_naming_rule.private_members.severity = suggestion
+dotnet_naming_rule.private_members_snake_case.symbols = private_symbols
+dotnet_naming_rule.private_members_snake_case.style = private_snake_case
+dotnet_naming_rule.private_members_snake_case.severity = suggestion

-dotnet_naming_rule.variables_are_camel_case.severity = suggestion
-dotnet_naming_rule.variables_are_camel_case.symbols = local_symbols
-dotnet_naming_rule.variables_are_camel_case.style = local
-
-dotnet_naming_rule.parameters.symbols = parameter_symbols
-dotnet_naming_rule.parameters.style = parameter
+dotnet_naming_rule.parameters.symbols = parameters
+dotnet_naming_rule.parameters.style = snake_case
 dotnet_naming_rule.parameters.severity = suggestion
@@ -1,64 +0,0 @@
-# This file defines the global default configuration for docker deployments.
-# It is tracked in source control. For temporary modifications, please create
-# a separate file called ".env.local" (it's in .gitignore, so won't be tracked).
-# If a variable is defined in both files, the value in .env.local will be used.
-#
-# About the deployment procedure:
-#   We use Docker Compose to build images and launch containers for various services
-#   that make up our software suite:
-#     - sparkd
-#     - TODO: pubsub
-#     - TODO: md-publisher
-#     - TODO: webapp (DSQA on the web)
-#     - TODO: api-server (websocket based)
-#   From inside a devcontainer, you can launch all services in separate containers
-#   on your machine by running:
-#
-#     tools/deploy.sh
-#
-#   This script builds release versions for each service, packaged (generally) in
-#   self-contained directories. Next, it runs a few "docker compose" commands to
-#   build docker images loaded with the self-contained binaries from the previous
-#   step, and start containers with those images to run each service. To view the
-#   commands that deploy.sh runs internally (without actually running them), run:
-#
-#     tools/deploy.sh --dry-run
-#
-#   For additional information/help, run:
-#
-#     tools/deploy.sh --help
-#
-
-### Host/Runtime ###
-TZ=Etc/UTC
-
-### Sparkd ###
-# The internal image for sparkd to use. For more info, view:
-#   src/server/sparkd/Dockerfile
-SPARKD__IMAGE=sparkd
-# The config dir for this service to use
-SPARKD__CONFIG_DIR=src/app_sparkd/configurations/dev
-# Mount a specific volume or dir to "~/sparkdata/data" inside the docker.
-# Defaults to a volume named "sparkd_<config_port>" (e.g., sparkd_8000).
-# SPARKD__DATA_DIR=/home/bts/sparkdata/data
-# Mount volume or dir to "/md_recording" inside the docker. Defaults to volume
-# "sparkd_md_recording_<config_port>" (e.g., sparkd_md_recording_8000).
-# SPARKD__MD_RECORDING_DIR=/home/bts/md_recording
-SPARKD__SOURCE_DIR=install/sparkd-release-gcc
-SPARKD__RUNTIME_CONF_DIR=/home/ubuntu/8000/sparkdata/conf/
-SPARKD__CONFIG_PORT=8000
-SPARKD__QUICKBUS_PORT=8001
-SPARKD__SIM_FIX_PORT=8002
-SPARKD__SHM_SIZE=4gb
-SPARKD__PYTHON_REQUIREMENTS=requirements.txt
-SPARKD__SPARKD_ENTRYPOINT=src/app_sparkd/sparkd-entrypoint.sh
-SPARKD__MAIN_ENTRYPOINT=./sparkd-entrypoint.sh
-
-### PubSubServer ###
-PUBSUB__CONFIG_DIR=src/DataStreamSuite/PubSubServer/Configurations/Development
-PUBSUB__SOURCE_DIR=build/Release/bin/net8.0/linux-x64/publish
-
-### MdPublisher ###
-MD_PUBLISHER__CONFIG_DIR=src/DataStreamSuite/DataStreamPublisher/Configurations/ReplayMarketData
-MD_PUBLISHER__SOURCE_DIR=build/Release/bin/net8.0/linux-x64/publish
-# TODO: add config for other services (pubsub, md-publisher, webapp, api-server, etc.)
@@ -1,3 +1,2 @@
-*.cmd text=auto eol=crlf
-*.cs text=auto eol=crlf
-*.sh text=auto eol=lf
+*.cmd eol=crlf
+*.sh eol=lf
@@ -11,7 +11,6 @@ cmake-build-debug/
 **.vscode/*
 !.vscode/launch.json
 !.vscode/tasks.json
-!.vscode/*.env
 .vs
 obj/
 *.csproj.user
@@ -55,12 +54,8 @@ trace_data/
 .cache/
 /src/Spark.Admin.WebApp/tsconfig.*.g.json
 /src/Spark.Admin.WebApp/src/bin/
-/src/**/*appsettings.Local.json
-/src/**/*/Configurations/Local/
 **/CMakeDeps.cmake
 **/CMakeDeps_win.cmake
 .devcontainer/
 *.Generated.cs
 *.lst
-.env.local
-.secrets
@@ -1,6 +1,6 @@
 [submodule "externals"]
 	path = externals
-	url = https://bitbucket.org/bluetradesys/externals.git
+	url = git@bitbucket.org:bluetradesys/externals.git
 [submodule "vcpkg"]
 	path = vcpkg
 	url = https://github.com/microsoft/vcpkg.git
@@ -2,61 +2,18 @@
  "version": "0.2.0",
  "configurations": [
    {
-      "name": "Python Debugger: Current File with Arguments",
-      "type": "debugpy",
+      "name": "(gdb) Launch",
+      "type": "cppdbg",
      "request": "launch",
-      "program": "${file}",
-      "console": "integratedTerminal",
-      "args": "${command:pickArgs}"
-    },
-    {
-      "name": ".NET Core Attach",
-      "type": "coreclr",
-      "request": "attach"
-    },
-    {
-      "name": "Api Server",
-      "type": "coreclr",
-      "request": "launch",
-      "program": "",
-      "preLaunchTask": "Build Api Server (Debug)",
-      "windows": {
-        "program": "spark_api_server.exe",
-      },
-      "linux": {
-        "program": "spark_api_server",
-      },
-      "args": [
-        "run",
-      ],
-      "cwd": "build/Debug/bin/net8.0",
-      "env": {
-        "DOTNET_ENVIRONMENT": "${input:apiServerEnvironment}",
-      },
+      "program": "${workspaceFolder}/build/sparkd-debug-gcc/server/sparkd",
+      "args": ["run"],
      "stopAtEntry": false,
-      "console": "integratedTerminal"
-    },
-    {
-      "name": "Api Server (Skip Build)",
-      "type": "coreclr",
-      "request": "launch",
-      "program": "",
-      "windows": {
-        "program": "spark_api_server.exe",
-      },
-      "linux": {
-        "program": "spark_api_server",
-      },
-      "args": [
-        "run",
-      ],
-      "cwd": "build/Debug/bin/net8.0",
-      "env": {
-        "DOTNET_ENVIRONMENT": "${input:apiServerEnvironment}",
-      },
-      "stopAtEntry": false,
-      "console": "integratedTerminal"
+      "cwd": "${workspaceFolder}/build/sparkd-debug-gcc/server",
+      "environment": [],
+      "externalConsole": false,
+      "MIMode": "gdb",
    },
+    
    {
      "name": "DataStreamPublisher",
      "type": "coreclr",
@@ -69,75 +26,14 @@
      "windows": {
        "program": "DataStreamPublisher.exe",
      },
-      "cwd": "build/Debug/bin/net8.0",
-      "env": {
-        "DOTNET_ENVIRONMENT": "${input:dataStreamPublisherEnvironment}",
-      },
+      "args": [
+        "--config",
+        "${workspaceFolder}/src/DataStreamSuite/DataStreamPublisher/Configurations/${input:dataStreamPublisherConfig}.json"
+      ],
+      "cwd": "build/Debug/bin/net7.0",
      "stopAtEntry": false,
      "console": "integratedTerminal"
    },
-    {
-      "name": "DataStreamPublisher (Skip Build)",
-      "type": "coreclr",
-      "request": "launch",
-      "program": "",
-      "linux": {
-        "program": "DataStreamPublisher",
-      },
-      "windows": {
-        "program": "DataStreamPublisher.exe",
-      },
-      "cwd": "${workspaceFolder}/build/Debug/bin/net8.0",
-      "env": {
-        "DOTNET_ENVIRONMENT": "${input:dataStreamPublisherEnvironment}",
-      },
-      "stopAtEntry": false,
-      "console": "integratedTerminal"
-    },
-    {
-      "name": "(gdb) Launch",
-      "type": "cppdbg",
-      "request": "launch",
-      "program": "/home/bts/spark/build/sparkd-debug-clang/server/sparkd",
-      "args": [
-        "run"
-      ],
-      "stopAtEntry": false,
-      "cwd": "/home/bts/spark/build/sparkd-debug-clang/server",
-      "environment": [],
-      "externalConsole": false,
-      "MIMode": "gdb",
-    },
-    {
-      "name": "spreader tests2",
-      "type": "cppdbg",
-      "request": "launch",
-      "program": "/home/bts/spark/build/sparkd-debug-clang/server/sparkd",
-      "args": [
-        "test",
-        "[spreader2]"
-      ],
-      "stopAtEntry": false,
-      "cwd": "/home/bts/spark/build/sparkd-debug-clang/server",
-      "environment": [],
-      "externalConsole": false,
-      "MIMode": "gdb",
-    },
-    {
-      "name": "spreader tests",
-      "type": "cppdbg",
-      "request": "launch",
-      "program": "/home/bts/spark/build/sparkd-debug-clang/server/sparkd",
-      "args": [
-        "test",
-        "[spreader]"
-      ],
-      "stopAtEntry": false,
-      "cwd": "/home/bts/spark/build/sparkd-debug-clang/server",
-      "environment": [],
-      "externalConsole": false,
-      "MIMode": "gdb",
-    },
    {
      "name": "DataStreamQueryAnalyzer",
      "type": "coreclr",
@@ -146,26 +42,13 @@
      "program": "",
      "windows": {
        "program": "DataStreamQueryAnalyzer.exe",
-        "cwd": "build/Debug/bin/net8.0-windows",
+        "args": [
+          "--config",
+          "${workspaceFolder}/src/DataStreamSuite/DataStreamQueryAnalyzer/Configurations/DataStreamQueryAnalyzer.json"
+        ],
+        "cwd": "build/Debug/bin/net7.0-windows",
        "env": {
-          "PYTHON_EXE": "${workspaceFolder}/.venv/Scripts/python.exe",
-          "DOTNET_ENVIRONMENT": "${input:dataStreamQueryAnalyzerEnvironment}",
-        },
-      },
-      "stopAtEntry": false,
-      "console": "integratedTerminal",
-    },
-    {
-      "name": "DataStreamQueryAnalyzer (Skip Build)",
-      "type": "coreclr",
-      "request": "launch",
-      "program": "",
-      "windows": {
-        "program": "DataStreamQueryAnalyzer.exe",
-        "cwd": "build/Debug/bin/net8.0-windows",
-        "env": {
-          "PYTHON_EXE": "${workspaceFolder}/.venv/Scripts/python.exe",
-          "DOTNET_ENVIRONMENT": "${input:dataStreamQueryAnalyzerEnvironment}",
+          "PYTHON_EXE": "${workspaceFolder}/.venv/Scripts/python.exe"
        },
      },
      "stopAtEntry": false,
@@ -183,65 +66,11 @@
      "windows": {
        "program": "PubSubServer.exe",
      },
-      "cwd": "build/Debug/bin/net8.0",
-      "env": {
-        "DOTNET_ENVIRONMENT": "${input:pubSubServerEnvironment}",
-      },
-      "stopAtEntry": false,
-      "console": "integratedTerminal"
-    },
-    {
-      "name": "PubSubServer (Skip Build)",
-      "type": "coreclr",
-      "request": "launch",
-      "program": "",
-      "linux": {
-        "program": "PubSubServer",
-      },
-      "windows": {
-        "program": "PubSubServer.exe",
-      },
-      "cwd": "build/Debug/bin/net8.0",
-      "env": {
-        "DOTNET_ENVIRONMENT": "${input:pubSubServerEnvironment}",
-      },
-      "stopAtEntry": false,
-      "console": "integratedTerminal"
-    },
-    {
-      "name": "Sdk Demo",
-      "type": "coreclr",
-      "request": "launch",
-      "program": "",
-      "preLaunchTask": "Build Api Server (Debug)",
-      "windows": {
-        "program": "Bts.Spark.Sdk.Demo.exe",
-      },
-      "linux": {
-        "program": "Bts.Spark.Sdk.Demo",
-      },
-      "cwd": "build/Debug/bin/net8.0",
-      "env": {
-        "DOTNET_ENVIRONMENT": "${input:sdkDemoEnvironment}",
-      },
-      "stopAtEntry": false,
-      "console": "integratedTerminal"
-    },
-    {
-      "name": "Sdk Demo (Skip Build)",
-      "type": "coreclr",
-      "request": "launch",
-      "program": "",
-      "windows": {
-        "program": "Bts.Spark.Sdk.Demo.exe",
-      },
-      "linux": {
-        "program": "Bts.Spark.Sdk.Demo.exe",
-      },
-      "cwd": "build/Debug/bin/net8.0",
-      "env": {
-        "DOTNET_ENVIRONMENT": "${input:sdkDemoEnvironment}",
-      },
+      "args": [
+        "--config",
+        "${workspaceFolder}/src/DataStreamSuite/PubSubServer/Configurations/${input:pubSubServerConfig}.json"
+      ],
+      "cwd": "build/Debug/bin/net7.0",
      "stopAtEntry": false,
      "console": "integratedTerminal"
    },
@@ -253,25 +82,7 @@
      "windows": {
        "preLaunchTask": "Build Spark (Debug)",
        "program": "Spark.exe",
-        "cwd": "build/Debug/bin/net8.0-windows",
-        "env": {
-          "DOTNET_ENVIRONMENT": "${input:sparkEnvironment}",
-        }
-      },
-      "stopAtEntry": false,
-      "console": "integratedTerminal"
-    },
-    {
-      "name": "Spark (Skip Build)",
-      "type": "coreclr",
-      "request": "launch",
-      "program": "",
-      "windows": {
-        "program": "Spark.exe",
-        "cwd": "build/Debug/bin/net8.0-windows",
-        "env": {
-          "DOTNET_ENVIRONMENT": "${input:sparkEnvironment}",
-        }
+        "cwd": "build/Debug/bin/net7.0-windows",
      },
      "stopAtEntry": false,
      "console": "integratedTerminal"
@@ -288,133 +99,29 @@
          "--sparkd",
          "${input:sparkConfigServer}"
        ],
-        "cwd": "build/Debug/bin/net8.0-windows",
-      },
-      "stopAtEntry": false,
-      "console": "integratedTerminal"
-    },
-    {
-      "name": "Spark Test",
-      "type": "coreclr",
-      "request": "launch",
-      "program": "",
-      "windows": {
-        "preLaunchTask": "Build Spark (Debug)",
-        "program": "Spark.Console.exe",
-        "cwd": "build/Debug/bin/net8.0",
-        "args": [
-          "test",
-          "${input:sparkTest}"
-        ]
-      },
-      "stopAtEntry": false,
-      "console": "integratedTerminal"
-    },
-    {
-      "name": "Spark Test (Skip Build)",
-      "type": "coreclr",
-      "request": "launch",
-      "program": "",
-      "windows": {
-        "program": "Spark.Console.exe",
-        "cwd": "build/Debug/bin/net8.0",
-        "args": [
-          "test",
-          "${input:sparkTest}"
-        ]
+        "cwd": "build/Debug/bin/net7.0-windows",
      },
      "stopAtEntry": false,
      "console": "integratedTerminal"
    },
    {
      "name": "Sparkd",
-      "type": "cppdbg",
+      "type": "coreclr",
      "request": "launch",
+      "preLaunchTask": "Build Sparkd (Debug | Clang)",
      "program": "",
      "linux": {
-        "program": "${workspaceFolder}/build/sparkd-debug-clang/src/app_sparkd/sparkd",
-        "preLaunchTask": "Build Sparkd (Debug | Clang)",
+        "program": "sparkd",
      },
      "args": [
        "run"
      ],
-      "cwd": "${workspaceFolder}/build/sparkd-debug-clang/src/app_sparkd",
+      "cwd": "build/sparkd-debug-clang/server",
      "stopAtEntry": false,
-      "externalConsole": false,
-      "MIMode": "gdb",
-      "setupCommands": [
-        {
-          "description": "Enable pretty-printing for gdb",
-          "text": "-enable-pretty-printing",
-          "ignoreFailures": true
-        },
-        {
-          "description": "Set Disassembly Flavor to Intel",
-          "text": "-gdb-set disassembly-flavor intel",
-          "ignoreFailures": true
-        }
-      ]
-    },
-    {
-      "name": "Sparkd (Skip Build)",
-      "type": "cppdbg",
-      "request": "launch",
-      "program": "",
-      "linux": {
-        "program": "${workspaceFolder}/build/sparkd-debug-clang/src/app_sparkd/sparkd",
-      },
-      "args": [
-        "run"
-      ],
-      "cwd": "${workspaceFolder}/build/sparkd-debug-clang/src/app_sparkd",
-      "stopAtEntry": false,
-      "externalConsole": false,
-      "MIMode": "gdb",
-      "setupCommands": [
-        {
-          "description": "Enable pretty-printing for gdb",
-          "text": "-enable-pretty-printing",
-          "ignoreFailures": true
-        },
-        {
-          "description": "Set Disassembly Flavor to Intel",
-          "text": "-gdb-set disassembly-flavor intel",
-          "ignoreFailures": true
-        }
-      ]
-    },
-    {
-      "name": "Sparkd Attach",
-      "type": "cppdbg",
-      "request": "attach",
-      "program": "${workspaceFolder}/build/sparkd-debug-clang/src/app_sparkd/sparkd",
-      "MIMode": "gdb",
-      "setupCommands": [
-        {
-          "description": "Enable pretty-printing for gdb",
-          "text": "-enable-pretty-printing",
-          "ignoreFailures": true
-        },
-        {
-          "description": "Set Disassembly Flavor to Intel",
-          "text": "-gdb-set disassembly-flavor intel",
-          "ignoreFailures": true
-        }
-      ]
-    },
+      "console": "integratedTerminal"
+    }
  ],
  "inputs": [
-    {
-      "id": "apiServerEnvironment",
-      "type": "pickString",
-      "description": "Api Server Configuration",
-      "options": [
-        "Development",
-        "Local",
-        "Staging",
-      ],
-      "default": "Development",
-    },
    {
      "id": "dataStreamPublisherConfig",
      "type": "pickString",
@@ -428,46 +135,14 @@
      "default": "MarketDataPublisher",
    },
    {
-      "id": "dataStreamQueryAnalyzerEnvironment",
+      "id": "pubSubServerConfig",
      "type": "pickString",
-      "description": "DataStreamQueryAnalyzer Configuration",
+      "description": "PubSub Configuration",
      "options": [
-        "Development",
-        "Local",
+        "PubSubServer",
+        "SimpleEchoClient",
      ],
-      "default": "Development",
-    },
-    {
-      "id": "dataStreamPublisherEnvironment",
-      "type": "pickString",
-      "description": "DataStreamPublisher Configuration",
-      "options": [
-        "Local",
-        "ReplayMarketData",
-      ],
-      "default": "Local",
-    },
-    {
-      "id": "pubSubServerEnvironment",
-      "type": "pickString",
-      "description": "PubSubServer Configuration",
-      "options": [
-        "Development",
-        "EchoServer",
-        "Local",
-      ],
-      "default": "Development",
-    },
-    {
-      "id": "sdkDemoEnvironment",
-      "type": "pickString",
-      "description": "Sdk Demo Configuration",
-      "options": [
-        "Development",
-        "Local",
-        "Staging",
-      ],
-      "default": "Development",
+      "default": "PubSubServer",
    },
    {
      "id": "sparkConfigServer",
@@ -475,25 +150,5 @@
      "description": "Config Server URL",
      "default": "http://localhost:8000/config",
    },
-    {
-      "id": "sparkEnvironment",
-      "type": "pickString",
-      "description": "Spark Configuration",
-      "options": [
-        "Development",
-        "Local",
-      ],
-      "default": "Development",
-    },
-    {
-      "id": "sparkTest",
-      "type": "promptString",
-      "description": "Test to run",
-    },
-    {
-      "id": "sparkdTest",
-      "type": "promptString",
-      "description": "Test to run",
-    },
  ]
 }
@@ -1 +0,0 @@
-PYTHONPATH=/workspaces/spark/build/sparkd-debug-clang/src/lib_python_interop;/workspaces/spark/src/lib_python_interop/python_interop_plugins;/workspaces/spark/tools/py
@@ -172,66 +172,6 @@
        "color": "terminal.ansiCyan"
      },
    },
-    {
-      "label": "Build Spark Sdk",
-      "group": "build",
-      "type": "process",
-      "command": "",
-      "linux": {
-        "command": "tools/build_spark_sdk.sh",
-      },
-      "windows": {
-        "command": "tools/build_spark_sdk.cmd",
-      },
-      "args": [
-        "--configuration",
-        "${input:buildConfiguration}",
-      ],
-      "icon": {
-        "id": "terminal",
-        "color": "terminal.ansiCyan"
-      },
-    },
-    {
-      "label": "Build Spark Sdk (Debug)",
-      "group": "build",
-      "type": "process",
-      "command": "",
-      "linux": {
-        "command": "tools/build_spark_sdk.sh",
-      },
-      "windows": {
-        "command": "tools/build_spark_sdk.cmd",
-      },
-      "args": [
-        "--configuration",
-        "Debug",
-      ],
-      "icon": {
-        "id": "terminal",
-        "color": "terminal.ansiCyan"
-      },
-    },
-    {
-      "label": "Build Spark Sdk (Release)",
-      "group": "build",
-      "type": "process",
-      "command": "",
-      "windows": {
-        "command": "tools/build_spark_sdk.cmd",
-      },
-      "linux": {
-        "command": "tools/build_spark_sdk.sh",
-      },
-      "args": [
-        "--configuration",
-        "Release",
-      ],
-      "icon": {
-        "id": "terminal",
-        "color": "terminal.ansiCyan"
-      },
-    },
    {
      "label": "Build Sparkd",
      "group": "build",
@@ -249,6 +189,25 @@
        "color": "terminal.ansiCyan"
      },
    },
+    {
+      "label": "Build Sparkd -j8",
+      "group": "build",
+      "type": "shell",
+      "command": "",
+      "linux": {
+        "command": "tools/build_sparkd.sh",
+        "args": [
+          "--preset",
+          "${input:sparkdCmakePreset}",
+          "-j",
+          "8"
+        ],
+      },
+      "icon": {
+        "id": "terminal",
+        "color": "terminal.ansiCyan"
+      },
+    },
    {
      "label": "Build Sparkd (Debug)",
      "group": "build",
@@ -411,129 +370,6 @@
        "id": "wrench"
      },
    },
-    {
-      "label": "Run Api Server",
-      "dependsOn": "Build Api Server",
-      "type": "process",
-      "command": "",
-      "windows": {
-        "command": "spark_api_server.exe",
-      },
-      "linux": {
-        "command": "spark_api_server",
-      },
-      "args": [
-        "run",
-      ],
-      "options": {
-        "cwd": "${workspaceFolder}/build/${input:buildConfiguration}/bin/net8.0",
-        "env": {
-          "DOTNET_ENVIRONMENT": "${input:apiServerEnvironment}",
-        }
-      },
-      "icon": {
-        "id": "run",
-        "color": "terminal.ansiGreen",
-      },
-    },
-    {
-      "label": "Run Api Server (Debug)",
-      "dependsOn": "Build Api Server (Debug)",
-      "type": "process",
-      "command": "",
-      "windows": {
-        "command": "spark_api_server.exe",
-      },
-      "linux": {
-        "command": "spark_api_server",
-      },
-      "args": [
-        "run",
-      ],
-      "options": {
-        "cwd": "${workspaceFolder}/build/Debug/bin/net8.0",
-        "env": {
-          "DOTNET_ENVIRONMENT": "${input:apiServerEnvironment}",
-        }
-      },
-      "icon": {
-        "id": "run",
-        "color": "terminal.ansiGreen",
-      },
-    },
-    {
-      "label": "Run Api Server (Release)",
-      "dependsOn": "Build Api Server (Release)",
-      "type": "process",
-      "command": "",
-      "windows": {
-        "command": "spark_api_server.exe",
-      },
-      "linux": {
-        "command": "spark_api_server",
-      },
-      "args": [
-        "run",
-      ],
-      "options": {
-        "cwd": "${workspaceFolder}/build/Release/bin/net8.0",
-        "env": {
-          "DOTNET_ENVIRONMENT": "${input:apiServerEnvironment}",
-        }
-      },
-      "icon": {
-        "id": "run",
-        "color": "terminal.ansiGreen",
-      },
-    },
-    {
-      "label": "Run Api Server (Debug | Skip Build)",
-      "type": "process",
-      "command": "",
-      "windows": {
-        "command": "spark_api_server.exe",
-      },
-      "linux": {
-        "command": "spark_api_server",
-      },
-      "args": [
-        "run",
-      ],
-      "options": {
-        "cwd": "${workspaceFolder}/build/Debug/bin/net8.0",
-        "env": {
-          "DOTNET_ENVIRONMENT": "${input:apiServerEnvironment}",
-        }
-      },
-      "icon": {
-        "id": "run",
-        "color": "terminal.ansiGreen",
-      },
-    },
-    {
-      "label": "Run Api Server (Release | Skip Build)",
-      "type": "process",
-      "command": "",
-      "windows": {
-        "command": "spark_api_server.exe",
-      },
-      "linux": {
-        "command": "spark_api_server",
-      },
-      "args": [
-        "run",
-      ],
-      "options": {
-        "cwd": "${workspaceFolder}/build/Release/bin/net8.0",
-        "env": {
-          "DOTNET_ENVIRONMENT": "${input:apiServerEnvironment}",
-        }
-      },
-      "icon": {
-        "id": "run",
-        "color": "terminal.ansiGreen",
-      },
-    },
    {
      "label": "Run DataStreamQueryAnalyzer",
      "dependsOn": "Build DataStream",
@@ -541,11 +377,12 @@
      "command": "",
      "windows": {
        "command": "DataStreamQueryAnalyzer.exe",
+        "args": [
+          "--config",
+          "${workspaceFolder}/src/DataStreamSuite/DataStreamQueryAnalyzer/Configurations/DataStreamQueryAnalyzer.json",
+        ],
        "options": {
-          "cwd": "${workspaceFolder}/build/${input:buildConfiguration}/bin/net8.0-windows",
-          "env": {
-            "DOTNET_ENVIRONMENT": "${input:dataStreamQueryAnalyzerEnvironment}",
-          },
+          "cwd": "${workspaceFolder}/build/${input:buildConfiguration}/bin/net7.0-windows"
        },
      },
      "icon": {
@@ -560,11 +397,12 @@
      "command": "",
      "windows": {
        "command": "DataStreamQueryAnalyzer.exe",
+        "args": [
+          "--config",
+          "${workspaceFolder}/src/DataStreamSuite/DataStreamQueryAnalyzer/Configurations/DataStreamQueryAnalyzer.json",
+        ],
        "options": {
-          "cwd": "${workspaceFolder}/build/Debug/bin/net8.0-windows",
-          "env": {
-            "DOTNET_ENVIRONMENT": "${input:dataStreamQueryAnalyzerEnvironment}",
-          },
+          "cwd": "${workspaceFolder}/build/Debug/bin/net7.0-windows"
        },
      },
      "icon": {
@@ -579,11 +417,12 @@
      "command": "",
      "windows": {
        "command": "DataStreamQueryAnalyzer.exe",
+        "args": [
+          "--config",
+          "${workspaceFolder}/src/DataStreamSuite/DataStreamQueryAnalyzer/Configurations/DataStreamQueryAnalyzer.json",
+        ],
        "options": {
-          "cwd": "${workspaceFolder}/build/Release/bin/net8.0-windows",
-          "env": {
-            "DOTNET_ENVIRONMENT": "${input:dataStreamQueryAnalyzerEnvironment}",
-          },
+          "cwd": "${workspaceFolder}/build/Release/bin/net7.0-windows"
        },
      },
      "icon": {
@@ -602,11 +441,12 @@
      "windows": {
        "command": "DataStreamPublisher.exe",
      },
+      "args": [
+        "--config",
+        "${workspaceFolder}/src/DataStreamSuite/DataStreamPublisher/Configurations/${input:dataStreamPublisherConfig}.json",
+      ],
      "options": {
-        "cwd": "${workspaceFolder}/build/${input:buildConfiguration}/bin/net8.0",
-        "env": {
-          "DOTNET_ENVIRONMENT": "${input:dataStreamPublisherEnvironment}",
-        },
+        "cwd": "${workspaceFolder}/build/${input:buildConfiguration}/bin/net7.0"
      },
      "icon": {
        "id": "run",
@@ -624,11 +464,12 @@
      "windows": {
        "command": "DataStreamPublisher.exe",
      },
+      "args": [
+        "--config",
+        "${workspaceFolder}/src/DataStreamSuite/DataStreamPublisher/Configurations/${input:dataStreamPublisherConfig}.json",
+      ],
      "options": {
-        "cwd": "${workspaceFolder}/build/Debug/bin/net8.0",
-        "env": {
-          "DOTNET_ENVIRONMENT": "${input:dataStreamPublisherEnvironment}",
-        },
+        "cwd": "${workspaceFolder}/build/Debug/bin/net7.0"
      },
      "icon": {
        "id": "run",
@@ -646,11 +487,12 @@
      "windows": {
        "command": "DataStreamPublisher.exe",
      },
+      "args": [
+        "--config",
+        "${workspaceFolder}/src/DataStreamSuite/DataStreamPublisher/Configurations/${input:dataStreamPublisherConfig}.json",
+      ],
      "options": {
-        "cwd": "${workspaceFolder}/build/Release/bin/net8.0",
-        "env": {
-          "DOTNET_ENVIRONMENT": "${input:dataStreamPublisherEnvironment}",
-        },
+        "cwd": "${workspaceFolder}/build/Release/bin/net7.0"
      },
      "icon": {
        "id": "run",
@@ -668,11 +510,12 @@
      "windows": {
        "command": "PubSubServer.exe",
      },
+      "args": [
+        "--config",
+        "${workspaceFolder}/src/DataStreamSuite/PubSubServer/Configurations/${input:pubSubServerConfig}.json",
+      ],
      "options": {
-        "cwd": "${workspaceFolder}/build/${input:buildConfiguration}/bin/net8.0",
-        "env": {
-          "DOTNET_ENVIRONMENT": "${input:pubSubServerEnvironment}",
-        },
+        "cwd": "${workspaceFolder}/build/${input:buildConfiguration}/bin/net7.0"
      },
      "icon": {
        "id": "run",
@@ -690,32 +533,12 @@
      "windows": {
        "command": "PubSubServer.exe",
      },
+      "args": [
+        "--config",
+        "${workspaceFolder}/src/DataStreamSuite/PubSubServer/Configurations/${input:pubSubServerConfig}.json",
+      ],
      "options": {
-        "cwd": "${workspaceFolder}/build/Debug/bin/net8.0",
-        "env": {
-          "DOTNET_ENVIRONMENT": "${input:pubSubServerEnvironment}",
-        },
-      },
-      "icon": {
-        "id": "run",
-        "color": "terminal.ansiGreen",
-      },
-    },
-    {
-      "label": "Run PubSubServer (Debug | Skip Build)",
-      "type": "process",
-      "command": "",
-      "linux": {
-        "command": "PubSubServer",
-      },
-      "windows": {
-        "command": "PubSubServer.exe",
-      },
-      "options": {
-        "cwd": "${workspaceFolder}/build/Debug/bin/net8.0",
-        "env": {
-          "DOTNET_ENVIRONMENT": "${input:pubSubServerEnvironment}",
-        },
+        "cwd": "${workspaceFolder}/build/Debug/bin/net7.0"
      },
      "icon": {
        "id": "run",
@@ -733,32 +556,12 @@
      "windows": {
        "command": "PubSubServer.exe",
      },
+      "args": [
+        "--config",
+        "${workspaceFolder}/src/DataStreamSuite/PubSubServer/Configurations/${input:pubSubServerConfig}.json",
+      ],
      "options": {
-        "cwd": "${workspaceFolder}/build/Release/bin/net8.0",
-        "env": {
-          "DOTNET_ENVIRONMENT": "${input:pubSubServerEnvironment}",
-        },
-      },
-      "icon": {
-        "id": "run",
-        "color": "terminal.ansiGreen",
-      },
-    },
-    {
-      "label": "Run PubSubServer (Release | Skip Build)",
-      "type": "process",
-      "command": "",
-      "linux": {
-        "command": "PubSubServer",
-      },
-      "windows": {
-        "command": "PubSubServer.exe",
-      },
-      "options": {
-        "cwd": "${workspaceFolder}/build/Release/bin/net8.0",
-        "env": {
-          "DOTNET_ENVIRONMENT": "${input:pubSubServerEnvironment}",
-        },
+        "cwd": "${workspaceFolder}/build/Release/bin/net7.0"
      },
      "icon": {
        "id": "run",
@@ -773,7 +576,7 @@
      "windows": {
        "command": "Spark.exe",
        "options": {
-          "cwd": "${workspaceFolder}/build/${input:buildConfiguration}/bin/net8.0-windows"
+          "cwd": "${workspaceFolder}/build/${input:buildConfiguration}/bin/net7.0-windows"
        },
      },
      "icon": {
@@ -789,7 +592,7 @@
      "windows": {
        "command": "Spark.exe",
        "options": {
-          "cwd": "${workspaceFolder}/build/Debug/bin/net8.0-windows"
+          "cwd": "${workspaceFolder}/build/Debug/bin/net7.0-windows"
        },
      },
      "icon": {
@@ -805,22 +608,7 @@
      "windows": {
        "command": "Spark.exe",
        "options": {
-          "cwd": "${workspaceFolder}/build/Release/bin/net8.0-windows"
-        },
-      },
-      "icon": {
-        "id": "run",
-        "color": "terminal.ansiGreen",
-      }
-    },
-    {
-      "label": "Run Spark (Skip Build)",
-      "type": "process",
-      "command": "",
-      "windows": {
-        "command": "Spark.exe",
-        "options": {
-          "cwd": "${workspaceFolder}/build/${input:buildConfiguration}/bin/net8.0-windows"
+          "cwd": "${workspaceFolder}/build/Release/bin/net7.0-windows"
        },
      },
      "icon": {
@@ -845,7 +633,7 @@
        "${input:sparkConfigQuery}",
      ],
      "options": {
-        "cwd": "${workspaceFolder}/build/${input:buildConfiguration}/bin/net8.0"
+        "cwd": "${workspaceFolder}/build/${input:buildConfiguration}/bin/net7.0"
      },
      "icon": {
        "id": "run",
@@ -871,24 +659,6 @@
        "color": "terminal.ansiGreen",
      },
    },
-    {
-      "label": "Run Sparkd (Skip Build)",
-      "type": "process",
-      "command": "",
-      "linux": {
-        "command": "sparkd",
-      },
-      "args": [
-        "run"
-      ],
-      "options": {
-        "cwd": "${workspaceFolder}/build/${input:sparkdCmakePreset}/server"
-      },
-      "icon": {
-        "id": "run",
-        "color": "terminal.ansiGreen",
-      },
-    },
    {
      "label": "Run Sparkd Config Query",
      "dependsOn": "Build Sparkd",
@@ -910,65 +680,6 @@
        "color": "terminal.ansiGreen",
      },
    },
-    {
-      "label": "Test Spark (Debug)",
-      "dependsOn": "Build Spark (Debug)",
-      "type": "process",
-      "icon": {
-        "id": "coverage",
-        "color": "terminal.ansiYellow",
-      },
-      "command": "",
-      "windows": {
-        "command": "Spark.Console.exe",
-        "args": [
-          "test",
-          "${input:sparkTest}"
-        ],
-        "options": {
-          "cwd": "${workspaceFolder}/build/Debug/bin/net8.0",
-        }
-      },
-    },
-    {
-      "label": "Test Sparkd",
-      "dependsOn": "Build Sparkd",
-      "type": "process",
-      "command": "",
-      "linux": {
-        "command": "sparkd",
-      },
-      "args": [
-        "test",
-        "${input:sparkdTest}",
-      ],
-      "options": {
-        "cwd": "${workspaceFolder}/build/${input:sparkdCmakePreset}/server"
-      },
-      "icon": {
-        "id": "coverage",
-        "color": "terminal.ansiYellow",
-      },
-    },
-    {
-      "label": "Test Sparkd (Skip Build)",
-      "type": "process",
-      "command": "",
-      "linux": {
-        "command": "sparkd",
-      },
-      "args": [
-        "test",
-        "${input:sparkdTest}",
-      ],
-      "options": {
-        "cwd": "${workspaceFolder}/build/${input:sparkdCmakePreset}/server"
-      },
-      "icon": {
-        "id": "coverage",
-        "color": "terminal.ansiYellow",
-      },
-    },
    {
      "label": "View DataStreamQueryAnalyzer Logs (Last Run)",
      "type": "process",
@@ -992,49 +703,8 @@
        "id": "wrench"
      },
    },
-    {
-      "label": "View PubSubServer Logs (Last Run)",
-      "type": "process",
-      "command": "",
-      "linux": {
-        "command": "tools/logging/show_last_run.sh",
-        "args": [
-          "${env:HOME}/.local/share/DataStream/data/logging.PubSubServer",
-          "Starting PubSubServer"
-        ]
-      },
-      "windows": {
-        "command": "tools/logging/show_last_run.cmd",
-        "args": [
-          "DataStream",
-          "PubSubServer.exe",
-          "Starting PubSubServer"
-        ]
-      },
-      "presentation": {
-        "reveal": "always",
-        "focus": true,
-        "panel": "shared",
-        "showReuseMessage": false,
-        "close": true,
-      },
-      "icon": {
-        "id": "wrench"
-      },
-    },
  ],
  "inputs": [
-    {
-      "id": "apiServerEnvironment",
-      "type": "pickString",
-      "description": "Api Server Configuration",
-      "options": [
-        "Development",
-        "Local",
-        "Staging",
-      ],
-      "default": "Development",
-    },
    {
      "id": "buildConfiguration",
      "type": "pickString",
@@ -1045,16 +715,6 @@
      ],
      "default": "Debug",
    },
-    {
-      "id": "dataStreamQueryAnalyzerEnvironment",
-      "type": "pickString",
-      "description": "DataStreamQueryAnalyzer Configuration",
-      "options": [
-        "Development",
-        "Local",
-      ],
-      "default": "Development",
-    },
    {
      "id": "sparkdCmakePreset",
      "type": "pickString",
@@ -1078,30 +738,26 @@
      "default": "sparkd-debug-clang",
    },
    {
-      "id": "dataStreamPublisherEnvironment",
+      "id": "dataStreamPublisherConfig",
      "type": "pickString",
      "description": "Publisher Configuration",
      "options": [
-        "Development",
-        "MarketData",
-        "Production",
-        "ProductionAws",
-        "Staging",
+        "MarketDataPublisher",
+        "SimpleEchoClient",
+        "SimpleTestDataPublisher",
+        "TestDataPublisher",
      ],
      "default": "MarketDataPublisher",
    },
    {
-      "id": "pubSubServerEnvironment",
+      "id": "pubSubServerConfig",
      "type": "pickString",
      "description": "PubSub Configuration",
      "options": [
-        "Development",
-        "EchoServer",
-        "Production",
-        "ProductionAws",
-        "Staging",
+        "PubSubServer",
+        "SimpleEchoClient",
      ],
-      "default": "Development",
+      "default": "PubSubServer",
    },
    {
      "id": "sparkConfigQuery",
@@ -1112,16 +768,6 @@
      "id": "sparkdConfigQuery",
      "type": "promptString",
      "description": "Config Type(s)"
-    },
-    {
-      "id": "sparkTest",
-      "type": "promptString",
-      "description": "Test to run",
-    },
-    {
-      "id": "sparkdTest",
-      "type": "promptString",
-      "description": "Test to run",
-    },
+    }
  ]
 }
@@ -1,102 +0,0 @@
-
-Microsoft Visual Studio Solution File, Format Version 12.00
-# Visual Studio Version 17
-VisualStudioVersion = 17.0.31903.59
-MinimumVisualStudioVersion = 10.0.40219.1
-Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "src", "src", "{827E0CD3-B72D-47B6-A68D-7590B98EB39B}"
-EndProject
-Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "cs", "cs", "{C5A3B5EA-BE9F-76E5-E9B8-8A22B289B295}"
-EndProject
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Bts.Spark.Core", "src\cs\Bts.Spark.Core\Bts.Spark.Core.csproj", "{E3BF9514-CB1A-4E07-A8DD-73300FD9726C}"
-EndProject
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Bts.Spark.Api", "src\cs\Bts.Spark.Api\Bts.Spark.Api.csproj", "{8949AF88-F1D3-4BC4-827F-B088B555F7B9}"
-EndProject
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Bts.Extensions.Hosting", "src\cs\Bts.Extensions.Hosting\Bts.Extensions.Hosting.csproj", "{37E4E890-D025-4729-90F9-6F95862F47BC}"
-EndProject
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Bts.Spark.Sdk", "src\cs\Bts.Spark.Sdk\Bts.Spark.Sdk.csproj", "{A5FF3FAF-43CB-496B-AF4B-F61EFD645579}"
-EndProject
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Bts.Spark.Sdk.Demo", "src\cs\Bts.Spark.Sdk.Demo\Bts.Spark.Sdk.Demo.csproj", "{FCFDBDBE-74B0-41C4-9011-C651B21056D4}"
-EndProject
-Global
-	GlobalSection(SolutionConfigurationPlatforms) = preSolution
-		Debug|Any CPU = Debug|Any CPU
-		Debug|x64 = Debug|x64
-		Debug|x86 = Debug|x86
-		Release|Any CPU = Release|Any CPU
-		Release|x64 = Release|x64
-		Release|x86 = Release|x86
-	EndGlobalSection
-	GlobalSection(ProjectConfigurationPlatforms) = postSolution
-		{E3BF9514-CB1A-4E07-A8DD-73300FD9726C}.Debug|Any CPU.ActiveCfg = Debug|x64
-		{E3BF9514-CB1A-4E07-A8DD-73300FD9726C}.Debug|Any CPU.Build.0 = Debug|x64
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-		{8949AF88-F1D3-4BC4-827F-B088B555F7B9}.Debug|Any CPU.ActiveCfg = Debug|x64
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-		{8949AF88-F1D3-4BC4-827F-B088B555F7B9}.Debug|x86.Build.0 = Debug|x64
-		{8949AF88-F1D3-4BC4-827F-B088B555F7B9}.Release|Any CPU.ActiveCfg = Release|x64
-		{8949AF88-F1D3-4BC4-827F-B088B555F7B9}.Release|Any CPU.Build.0 = Release|x64
-		{8949AF88-F1D3-4BC4-827F-B088B555F7B9}.Release|x64.ActiveCfg = Release|x64
-		{8949AF88-F1D3-4BC4-827F-B088B555F7B9}.Release|x64.Build.0 = Release|x64
-		{8949AF88-F1D3-4BC4-827F-B088B555F7B9}.Release|x86.ActiveCfg = Release|x64
-		{8949AF88-F1D3-4BC4-827F-B088B555F7B9}.Release|x86.Build.0 = Release|x64
-		{37E4E890-D025-4729-90F9-6F95862F47BC}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
-		{37E4E890-D025-4729-90F9-6F95862F47BC}.Debug|Any CPU.Build.0 = Debug|Any CPU
-		{37E4E890-D025-4729-90F9-6F95862F47BC}.Debug|x64.ActiveCfg = Debug|Any CPU
-		{37E4E890-D025-4729-90F9-6F95862F47BC}.Debug|x64.Build.0 = Debug|Any CPU
-		{37E4E890-D025-4729-90F9-6F95862F47BC}.Debug|x86.ActiveCfg = Debug|Any CPU
-		{37E4E890-D025-4729-90F9-6F95862F47BC}.Debug|x86.Build.0 = Debug|Any CPU
-		{37E4E890-D025-4729-90F9-6F95862F47BC}.Release|Any CPU.ActiveCfg = Release|Any CPU
-		{37E4E890-D025-4729-90F9-6F95862F47BC}.Release|Any CPU.Build.0 = Release|Any CPU
-		{37E4E890-D025-4729-90F9-6F95862F47BC}.Release|x64.ActiveCfg = Release|Any CPU
-		{37E4E890-D025-4729-90F9-6F95862F47BC}.Release|x64.Build.0 = Release|Any CPU
-		{37E4E890-D025-4729-90F9-6F95862F47BC}.Release|x86.ActiveCfg = Release|Any CPU
-		{37E4E890-D025-4729-90F9-6F95862F47BC}.Release|x86.Build.0 = Release|Any CPU
-		{A5FF3FAF-43CB-496B-AF4B-F61EFD645579}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
-		{A5FF3FAF-43CB-496B-AF4B-F61EFD645579}.Debug|Any CPU.Build.0 = Debug|Any CPU
-		{A5FF3FAF-43CB-496B-AF4B-F61EFD645579}.Debug|x64.ActiveCfg = Debug|Any CPU
-		{A5FF3FAF-43CB-496B-AF4B-F61EFD645579}.Debug|x64.Build.0 = Debug|Any CPU
-		{A5FF3FAF-43CB-496B-AF4B-F61EFD645579}.Debug|x86.ActiveCfg = Debug|Any CPU
-		{A5FF3FAF-43CB-496B-AF4B-F61EFD645579}.Debug|x86.Build.0 = Debug|Any CPU
-		{A5FF3FAF-43CB-496B-AF4B-F61EFD645579}.Release|Any CPU.ActiveCfg = Release|Any CPU
-		{A5FF3FAF-43CB-496B-AF4B-F61EFD645579}.Release|Any CPU.Build.0 = Release|Any CPU
-		{A5FF3FAF-43CB-496B-AF4B-F61EFD645579}.Release|x64.ActiveCfg = Release|Any CPU
-		{A5FF3FAF-43CB-496B-AF4B-F61EFD645579}.Release|x64.Build.0 = Release|Any CPU
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-		{FCFDBDBE-74B0-41C4-9011-C651B21056D4}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
-		{FCFDBDBE-74B0-41C4-9011-C651B21056D4}.Debug|Any CPU.Build.0 = Debug|Any CPU
-		{FCFDBDBE-74B0-41C4-9011-C651B21056D4}.Debug|x64.ActiveCfg = Debug|Any CPU
-		{FCFDBDBE-74B0-41C4-9011-C651B21056D4}.Debug|x64.Build.0 = Debug|Any CPU
-		{FCFDBDBE-74B0-41C4-9011-C651B21056D4}.Debug|x86.ActiveCfg = Debug|Any CPU
-		{FCFDBDBE-74B0-41C4-9011-C651B21056D4}.Debug|x86.Build.0 = Debug|Any CPU
-		{FCFDBDBE-74B0-41C4-9011-C651B21056D4}.Release|Any CPU.ActiveCfg = Release|Any CPU
-		{FCFDBDBE-74B0-41C4-9011-C651B21056D4}.Release|Any CPU.Build.0 = Release|Any CPU
-		{FCFDBDBE-74B0-41C4-9011-C651B21056D4}.Release|x64.ActiveCfg = Release|Any CPU
-		{FCFDBDBE-74B0-41C4-9011-C651B21056D4}.Release|x64.Build.0 = Release|Any CPU
-		{FCFDBDBE-74B0-41C4-9011-C651B21056D4}.Release|x86.ActiveCfg = Release|Any CPU
-		{FCFDBDBE-74B0-41C4-9011-C651B21056D4}.Release|x86.Build.0 = Release|Any CPU
-	EndGlobalSection
-	GlobalSection(SolutionProperties) = preSolution
-		HideSolutionNode = FALSE
-	EndGlobalSection
-	GlobalSection(NestedProjects) = preSolution
-		{C5A3B5EA-BE9F-76E5-E9B8-8A22B289B295} = {827E0CD3-B72D-47B6-A68D-7590B98EB39B}
-		{E3BF9514-CB1A-4E07-A8DD-73300FD9726C} = {C5A3B5EA-BE9F-76E5-E9B8-8A22B289B295}
-		{8949AF88-F1D3-4BC4-827F-B088B555F7B9} = {C5A3B5EA-BE9F-76E5-E9B8-8A22B289B295}
-		{37E4E890-D025-4729-90F9-6F95862F47BC} = {C5A3B5EA-BE9F-76E5-E9B8-8A22B289B295}
-		{A5FF3FAF-43CB-496B-AF4B-F61EFD645579} = {C5A3B5EA-BE9F-76E5-E9B8-8A22B289B295}
-		{FCFDBDBE-74B0-41C4-9011-C651B21056D4} = {C5A3B5EA-BE9F-76E5-E9B8-8A22B289B295}
-	EndGlobalSection
-EndGlobal
@@ -1,10 +1,7 @@
 cmake_minimum_required(VERSION 3.12)
 project(spark)
-include(GNUInstallDirs)
-include(${CMAKE_SOURCE_DIR}/cmake/GitVersion.cmake)
 set(CMAKE_CXX_STANDARD 20)

-get_version_from_git()
 if(WIN32)
  set(platform "windows")
 else()
@@ -21,10 +18,10 @@ set(
 # SHARED_MEMORY_PREFIX serves as a kind of namespace so multiple applications
 # can run simultaneously without fighting over the same shm files (e.g., sparkd,
 # api server, etc.).
-set(SHARED_MEMORY_PREFIX "\${BTS_SHARED_MEMORY_PREFIX}" CACHE STRING "Prefix to use when creating shared memory files")
-set(EXTERNALS_BIN "${EXTERNALS_ROOT}/bin")
-set(EXTERNALS_INCLUDE "${EXTERNALS_ROOT}/include")
-set(EXTERNALS_LIB "${EXTERNALS_ROOT}/lib/$<CONFIG>")
+set(SHARED_MEMORY_PREFIX "bts" CACHE STRING "Prefix to use when creating shared memory files")
+set(SPARK_BIN "${EXTERNALS_ROOT}/bin")
+set(SPARK_INCLUDE "${EXTERNALS_ROOT}/include")
+set(SPARK_LIB "${EXTERNALS_ROOT}/lib/$<CONFIG>")
 set(BUILD_DOCS OFF CACHE BOOL "Build documentation")
 set(BUILD_SDK OFF CACHE BOOL "Build the sdk")
 set(EXPORT_MD_CONSUMER OFF CACHE BOOL "Export (extern) C functions for MD consumer interop")
@@ -36,18 +33,25 @@ else()
  set(BUILD_ADMIN_WEB_APP ON CACHE BOOL "Build the Admin WebApp")
 endif()

-include_directories(BEFORE SYSTEM ${EXTERNALS_INCLUDE} ${EXTERNALS_ROOT}/include/zlib)
-link_directories(${EXTERNALS_LIB})
+include_directories(BEFORE SYSTEM ${SPARK_INCLUDE} ${EXTERNALS_ROOT}/include/zlib)
+link_directories(${SPARK_LIB})

 add_compile_definitions(SHARED_MEMORY_PREFIX="${SHARED_MEMORY_PREFIX}")
-if(DEFINED APP_DATA_DIR)
-  add_compile_definitions(APP_DATA_DIR="${APP_DATA_DIR}")
+add_compile_definitions(APP_DATA_DIR="${APP_DATA_DIR}")
+if(DEFINED APP_DATA_DIR_OVERRIDE)
+  add_compile_definitions(APP_DATA_DIR_OVERRIDE="${APP_DATA_DIR_OVERRIDE}")
 endif()
 add_compile_definitions(EXPORT_MD_CONSUMER="${EXPORT_MD_CONSUMER}")
 if(WIN32)
  # subdirs
-  add_subdirectory(src/lib_spark)
+  add_subdirectory(src/lib)
 else()
+  # make sparkd look for libspark.so in its directory
+  set(CMAKE_BUILD_WITH_INSTALL_RPATH TRUE)
+  set(CMAKE_INSTALL_RPATH ".")
+  set(CMAKE_INSTALL_PREFIX "${CMAKE_SOURCE_DIR}/install")
+  set(SPARK_INSTALL_PREFIX "${CMAKE_INSTALL_PREFIX}/$<CONFIG>")
+
  if(BUILD_SPARKD)
    # Note: All macros that begin w/ 'CCAPI' are ccapi's macros (defined and/or
    # read by their code). We override some below.
@@ -85,15 +89,9 @@ else()
    add_compile_definitions(BINANCE_US_PRICE_STATS_PATH="/api/v3/ticker/24hr")

    # ** Binance USDS Futures **
-    add_compile_definitions(CCAPI_BINANCE_USDS_FUTURES_URL_REST_BASE="https://fapi.binance.com")
-    add_compile_definitions(BINANCE_USDS_FUTURES_INSTRUMENTS_PATH="/fapi/v1/exchangeInfo")
-    add_compile_definitions(BINANCE_USDS_FUTURES_PRICE_STATS_PATH="/fapi/v1/ticker/24hr")
-    add_compile_definitions(BINANCE_USDS_FUTURES_USER_DATA_PATH="/api/v3/userDataStream")
-
-    # ** Binance Coin Futures **
-    add_compile_definitions(CCAPI_BINANCE_COIN_FUTURES_URL_REST_BASE="https://dapi.binance.com")
-    add_compile_definitions(BINANCE_COIN_FUTURES_INSTRUMENTS_PATH="/dapi/v1/exchangeInfo")
-    add_compile_definitions(BINANCE_COIN_FUTURES_PRICE_STATS_PATH="/dapi/v1/ticker/24hr")
+    add_compile_definitions(CCAPI_BINANCE_USDS_FUTURES_URL_REST_BASE="https://dapi.binance.com")
+    add_compile_definitions(BINANCE_USDS_FUTURES_INSTRUMENTS_PATH="/dapi/v1/exchangeInfo")
+    add_compile_definitions(BINANCE_USDS_FUTURES_PRICE_STATS_PATH="/dapi/v1/ticker/24hr")

    # ** Deribit **
    add_compile_definitions(DERIBIT_INSTRUMENT_PATH="/api/v2/public/get_instrument")
@@ -112,15 +110,11 @@ else()
  endif()

  # subdirs
-  add_subdirectory(src/lib_spark)
  if (BUILD_SPARKD)
-    add_subdirectory(src/lib_python_interop)
-    add_subdirectory(src/lib_onixs_fix)
-    add_subdirectory(src/lib_binance)
-    add_subdirectory(src/lib_okx_execution)
-    add_subdirectory(src/app_sparkd)
+    add_subdirectory(src/server/sparkd)
    add_subdirectory(src/data_files)
  endif()
+  add_subdirectory(src/lib)
  if (BUILD_ADMIN_WEB_APP)
    add_subdirectory(src/Spark.Admin.WebApp)
  endif()
@@ -130,4 +124,32 @@ else()
  if(BUILD_SDK)
    add_subdirectory(src/sdk)
  endif()
+
+  if(BUILD_SPARKD)
+    add_custom_command(
+      OUTPUT ${CMAKE_BINARY_DIR}/server
+      COMMAND mkdir -p ${CMAKE_BINARY_DIR}/server
+      COMMAND ln ARGS -sf ${CMAKE_BINARY_DIR}/src/server/sparkd/sparkd ${CMAKE_BINARY_DIR}/server
+      COMMAND ln ARGS -sf ${CMAKE_BINARY_DIR}/data_files ${CMAKE_BINARY_DIR}/server
+      COMMAND ln ARGS -sf ${CMAKE_BINARY_DIR}/src/lib/libspark.so ${CMAKE_BINARY_DIR}/server
+      COMMAND
+        ln ARGS -sf
+        ${EXTERNALS_ROOT}/lib/Release/libOnixS.IceImpactMulticastPriceFeedHandlerCpp.so.3.16.0.0
+        ${CMAKE_BINARY_DIR}/server
+      COMMAND ln ARGS -sf ${EXTERNALS_ROOT}/lib/Release/libACE-5.7.5.so ${CMAKE_BINARY_DIR}/server
+      COMMAND mkdir ARGS -p ${CMAKE_BINARY_DIR}/server/plugins
+      COMMENT "Creating server runtime layout"
+      DEPENDS sparkd data_files_dir)
+
+    add_custom_target(server_layout ALL DEPENDS ${CMAKE_BINARY_DIR}/server)
+
+    install(
+      DIRECTORY "${CMAKE_BINARY_DIR}/server/plugins"
+      DESTINATION "${SPARK_INSTALL_PREFIX}/bin")
+    install(
+      FILES
+      "${SPARK_LIB}/libACE-5.7.5.so"
+      "${SPARK_LIB}/libOnixS.IceImpactMulticastPriceFeedHandlerCpp.so.3.16.0.0"
+      DESTINATION "${SPARK_INSTALL_PREFIX}/bin")
+  endif()
 endif()
@@ -8,41 +8,36 @@

  "configurePresets": [
    {
-      "name": "spark-base",
-      "hidden": true,
-      "binaryDir": "${sourceDir}/build/${presetName}",
-      "cacheVariables": {
-        "CMAKE_CXX_STANDARD": "20",
-        "CMAKE_INSTALL_PREFIX": "${sourceDir}/install/${presetName}",
-        "CMAKE_TOOLCHAIN_FILE": "${sourceDir}/vcpkg/scripts/buildsystems/vcpkg.cmake",
-        "CONFIG_DEFAULTS_PATH": "spark/config/profiles/default/*.conf",
-        "EXPORT_MD_CONSUMER": {
-          "type": "BOOL",
-          "value": "ON"
-        }
-      }
-    },
-
-    {
-      "name": "spark-windows",
-      "inherits": "spark-base",
-      "displayName": "Spark",
+      "name": "spark",
      "condition": {
        "type": "equals",
        "lhs": "${hostSystemName}",
        "rhs": "Windows"
      },
      "generator": "Visual Studio 17 2022",
+      "binaryDir": "${sourceDir}/build/${presetName}",
      "environment": {
        "SPARK_CMAKE_CXX_FLAGS": "/MP /WX /wd4250 /wd4251 /wd4244 /wd4267 /wd4355 /wd4275 /wd4345 /bigobj /EHsc /DCURL_STATICLIB /D_WINSOCK_DEPRECATED_NO_WARNINGS /D__TBB_NO_IMPLICIT_LINKAGE /DBOOST_ALL_NO_LIB /std:c++20 /D_SCL_SECURE_NO_WARNINGS /D_CRT_SECURE_NO_WARNINGS /D_WIN32_WINNT=0x0600"
      },
      "cacheVariables": {
+        "APP_DATA_DIR": "${dollar}{APPDATA}/bts",
+        "APP_DATA_DIR_OVERRIDE": "${dollar}{SPARK_DATA_DIR}",
        "CMAKE_CXX_FLAGS": "$env{SPARK_CMAKE_CXX_FLAGS}",
        "CMAKE_CXX_FLAGS_DEBUG": "$env{SPARK_CMAKE_CXX_FLAGS} /MTd",
        "CMAKE_CXX_FLAGS_RELEASE": "$env{SPARK_CMAKE_CXX_FLAGS} /MT",
+        "CMAKE_CXX_STANDARD": "20",
        "CMAKE_SHARED_LINKER_FLAGS_DEBUG": "/DEBUG",
        "CMAKE_SHARED_LINKER_FLAGS_RELEASE": "/OPT:REF /OPT:ICF /LTCG",
-        "EXTERNALS_ROOT": "${sourceDir}/externals/windows"
+        "CMAKE_TOOLCHAIN_FILE": "${sourceDir}/vcpkg/scripts/buildsystems/vcpkg.cmake",
+        "EXTERNALS_ROOT": "${sourceDir}/externals/windows",
+        "CONFIG_DEFAULTS_PATH": "config/profiles/default/*.conf",
+        "DOTNET_BINARY_DIR": "${sourceDir}/build/$<CONFIG>/bin/net7.0",
+        "DOTNET_WINDOWS_BINARY_DIR": "${sourceDir}/build/$<CONFIG>/bin/net7.0-windows",
+        "EXPORT_MD_CONSUMER": {
+          "type": "BOOL",
+          "value": "ON"
+        },
+        "SHARED_MEMORY_PREFIX": "spark"
      }
    },

@@ -58,20 +53,16 @@
      "binaryDir": "${sourceDir}/build/${presetName}",
      "cacheVariables": {
        "platform": "",
+        "APP_DATA_DIR": "${dollar}{HOME}/sparkdata",
+        "APP_DATA_DIR_OVERRIDE": "${dollar}{SPARKD_DATA_DIR}",
        "CMAKE_BUILD_WITH_INSTALL_RPATH": {
-          "type": "BOOL",
-          "value": "OFF"
-        },
-        "CMAKE_CXX_STANDARD": "20",
-        "CMAKE_INSTALL_RPATH": ".",
-        "CMAKE_INSTALL_PREFIX": "${sourceDir}/install/${presetName}",
-        "CMAKE_PREFIX_PATH": "${sourceDir}/cmake/;${sourceDir}/.venv/lib/python3.10/site-packages/pybind11/share/cmake/pybind11",
-        "CMAKE_EXE_LINKER_FLAGS": "-Wno-undef",
-        "CMAKE_TOOLCHAIN_FILE": "${sourceDir}/vcpkg/scripts/buildsystems/vcpkg.cmake",
-        "DATABENTO_USE_EXTERNAL_JSON": {
          "type": "BOOL",
          "value": "ON"
        },
+        "CMAKE_CXX_STANDARD": "20",
+        "CMAKE_INSTALL_RPATH": ".",
+        "CMAKE_INSTALL_PREFIX": "${sourceDir}/install/${presetName}/sparkd",
+        "CMAKE_EXE_LINKER_FLAGS": "-Wno-undef",
        "EXTERNALS_ROOT": "${sourceDir}/externals/linux",
        "BUILD_SDK": {
          "type": "BOOL",
@@ -80,7 +71,8 @@
        "BUILD_ADMIN_WEB_APP": {
          "type": "BOOL",
          "value": "ON"
-        }
+        },
+        "SHARED_MEMORY_PREFIX": "sparkd"
      }
    },

@@ -95,7 +87,7 @@
          "value": "ON"
        },
        "CCAPI_LOG_LEVEL": "Info",
-        "CONFIG_DEFAULTS_PATH": "spark/config/profiles/md_dev/*.conf;spark/config/profiles/default/*.conf"
+        "CONFIG_DEFAULTS_PATH": "config/profiles/md_dev/*.conf;config/profiles/default/*.conf"
      }
    },

@@ -106,7 +98,7 @@
      "cacheVariables": {
        "CMAKE_BUILD_TYPE": "Release",
        "CCAPI_LOG_LEVEL": "Warn",
-        "CONFIG_DEFAULTS_PATH": "spark/config/profiles/md_prod/*.conf;spark/config/profiles/default/*.conf"
+        "CONFIG_DEFAULTS_PATH": "config/profiles/md_prod/*.conf;config/profiles/default/*.conf"
      }
    },

@@ -159,17 +151,22 @@
    },

    {
-      "name": "spark-linux",
-      "inherits": "spark-base",
-      "displayName": "Spark",
-      "condition": {
-        "type": "equals",
-        "lhs": "${hostSystemName}",
-        "rhs": "Linux"
-      },
+      "name": "spark-api-server-windows",
+      "inherits": "spark",
+      "displayName": "Spark Api Server (Windows)",
+      "cacheVariables": {
+        "APP_DATA_DIR_OVERRIDE": "${dollar}{SPARK_API_SERVER_DATA_DIR}",
+        "SHARED_MEMORY_PREFIX": "spark_api_server"
+      }
+    },
+
+    {
+      "name": "spark-api-server-linux",
+      "inherits": "sparkd",
+      "displayName": "Spark Api Server (Linux)",
      "generator": "Ninja Multi-Config",
      "cacheVariables": {
-        "platform": "linux",
+        "APP_DATA_DIR_OVERRIDE": "${dollar}{SPARK_API_SERVER_DATA_DIR}",
        "BUILD_ADMIN_WEB_APP": {
          "type": "BOOL",
          "value": "OFF"
@@ -178,26 +175,17 @@
          "type": "BOOL",
          "value": "OFF"
        },
-        "CMAKE_BUILD_WITH_INSTALL_RPATH": {
-          "type": "BOOL",
-          "value": "OFF"
-        },
        "CMAKE_C_COMPILER": "clang",
        "CMAKE_CXX_COMPILER": "clang++",
        "CMAKE_CXX_FLAGS_DEBUG": "-g -fPIC -Wall -pedantic -Wextra -Werror -Wno-missing-braces -Wno-ignored-qualifiers --std=c++20 -fdiagnostics-color -DDEBUG",
        "CMAKE_CXX_FLAGS_RELEASE": "-fPIC -Wall -pedantic -Wextra -Werror -Wno-missing-braces -Wno-ignored-qualifiers --std=c++20 -fdiagnostics-color -fno-omit-frame-pointer -DNDEBUG -O3",
-        "CMAKE_EXE_LINKER_FLAGS": "-Wno-undef",
-        "CMAKE_EXPORT_COMPILE_COMMANDS": {
+        "CMAKE_INSTALL_PREFIX": "${sourceDir}/install/${presetName}",
+        "CONFIG_DEFAULTS_PATH": "config/profiles/default/*.conf",
+        "DOTNET_BINARY_DIR": "${sourceDir}/build/$<CONFIG>/bin/net7.0",
+        "EXPORT_MD_CONSUMER": {
          "type": "BOOL",
          "value": "ON"
-        },
-        "CMAKE_INSTALL_RPATH": ".",
-        "CMAKE_PREFIX_PATH": "${sourceDir}/cmake/;${sourceDir}/.venv/lib/python3.10/site-packages/pybind11/share/cmake/pybind11",
-        "DATABENTO_USE_EXTERNAL_JSON": {
-          "type": "BOOL",
-          "value": "ON"
-        },
-        "EXTERNALS_ROOT": "${sourceDir}/externals/linux"
+        }
      }
    },

@@ -217,32 +205,93 @@
      "cacheVariables": {
        "CCAPI_LOG_LEVEL": "Trace"
      }
-    }
-  ],
+    },

-  "buildPresets": [
    {
-      "name": "spark-windows",
+      "name": "data-stream-suite-windows",
      "condition": {
        "type": "equals",
        "lhs": "${hostSystemName}",
        "rhs": "Windows"
      },
-      "hidden": true,
-      "configurePreset": "spark-windows"
+      "inherits": "spark",
+      "displayName": "Data Stream Suite (Windows)",
+      "description": "Data Stream utils ported over from Edge",
+      "binaryDir": "${sourceDir}/build/${presetName}",
+      "cacheVariables": {
+        "APP_DATA_DIR": "${dollar}{APPDATA}/bts/DataStream",
+        "APP_DATA_DIR_OVERRIDE": "${dollar}{DATA_STREAM_DATA_DIR}",
+        "CONFIG_DEFAULTS_PATH": "config/profiles/default/*.conf;config/profiles/data_stream/*.conf",
+        "SHARED_MEMORY_PREFIX": "data_stream"
+      }
    },

    {
-      "name": "spark-windows-debug",
+      "name": "data-stream-suite-linux",
+      "displayName": "Data Stream Suite (Linux)",
+      "description": "Data Stream utils ported over from Edge",
+      "condition": {
+        "type": "equals",
+        "lhs": "${hostSystemName}",
+        "rhs": "Linux"
+      },
+      "inherits": "sparkd",
+      "generator": "Ninja Multi-Config",
+      "cacheVariables": {
+        "APP_DATA_DIR": "${dollar}{HOME}/.local/share/DataStream",
+        "APP_DATA_DIR_OVERRIDE": "${dollar}{DATA_STREAM_DATA_DIR}",
+        "BUILD_ADMIN_WEB_APP": {
+          "type": "BOOL",
+          "value": "OFF"
+        },
+        "BUILD_SDK": {
+          "type": "BOOL",
+          "value": "OFF"
+        },
+        "BUILD_SPARKD": {
+          "type": "BOOL",
+          "value": "OFF"
+        },
+        "CMAKE_C_COMPILER": "clang",
+        "CMAKE_CXX_COMPILER": "clang++",
+        "CMAKE_CXX_FLAGS_DEBUG": "-g -fPIC -Wall -pedantic -Wextra -Werror -Wno-missing-braces -Wno-ignored-qualifiers --std=c++20 -fdiagnostics-color -DDEBUG",
+        "CMAKE_CXX_FLAGS_RELEASE": "-fPIC -Wall -pedantic -Wextra -Werror -Wno-missing-braces -Wno-ignored-qualifiers --std=c++20 -fdiagnostics-color -fno-omit-frame-pointer -DNDEBUG -O3",
+        "CMAKE_INSTALL_PREFIX": "${sourceDir}/install/${presetName}",
+        "CONFIG_DEFAULTS_PATH": "config/profiles/default/*.conf;config/profiles/data_stream/*.conf",
+        "DOTNET_BINARY_DIR": "${sourceDir}/build/$<CONFIG>/bin/net7.0",
+        "EXPORT_MD_CONSUMER": {
+          "type": "BOOL",
+          "value": "ON"
+        },
+        "SHARED_MEMORY_PREFIX": "data_stream"
+      }
+    }
+  ],
+
+  "buildPresets": [
+    {
+      "name": "spark",
+      "condition": {
+        "type": "equals",
+        "lhs": "${hostSystemName}",
+        "rhs": "Windows"
+      },
+      "hidden": true
+    },
+
+    {
+      "name": "spark-debug",
      "displayName": "Spark (Debug)",
-      "inherits": "spark-windows",
+      "inherits": "spark",
+      "configurePreset": "spark",
      "configuration": "Debug"
    },

    {
-      "name": "spark-windows-release",
+      "name": "spark-release",
      "displayName": "Spark (Release)",
-      "inherits": "spark-windows",
+      "inherits": "spark",
+      "configurePreset": "spark",
      "configuration": "Release"
    },

@@ -253,7 +302,16 @@
        "lhs": "${hostSystemName}",
        "rhs": "Linux"
      },
-      "hidden": true
+      "hidden": true,
+      "targets": [
+        "data_files_dir",
+        "admin_web_app_bundle",
+        "install",
+        "libspark",
+        "rapidjson_project",
+        "server_layout",
+        "sparkd"
+      ]
    },

    {
@@ -285,27 +343,52 @@
    },

    {
-      "name": "spark-linux",
+      "name": "spark-api-server-windows",
+      "condition": {
+        "type": "equals",
+        "lhs": "${hostSystemName}",
+        "rhs": "Windows"
+      },
+      "hidden": true,
+      "configurePreset": "spark-api-server-windows"
+    },
+
+    {
+      "name": "spark-api-server-windows-debug",
+      "displayName": "Spark Api Server (Windows | Debug)",
+      "inherits": "spark-api-server-windows",
+      "configuration": "Debug"
+    },
+
+    {
+      "name": "spark-api-server-windows-release",
+      "displayName": "Spark Api Server (Windows | Release)",
+      "inherits": "spark-api-server-windows",
+      "configuration": "Release"
+    },
+
+    {
+      "name": "spark-api-server-linux",
      "condition": {
        "type": "equals",
        "lhs": "${hostSystemName}",
        "rhs": "Linux"
      },
      "hidden": true,
-      "configurePreset": "spark-linux"
+      "configurePreset": "spark-api-server-linux"
    },

    {
-      "name": "spark-linux-debug",
-      "inherits": "spark-linux",
-      "displayName": "Spark (Linux | Debug)",
+      "name": "spark-api-server-linux-debug",
+      "inherits": "spark-api-server-linux",
+      "displayName": "Spark Api Server (Linux | Debug)",
      "configuration": "Debug"
    },

    {
-      "name": "spark-linux-release",
-      "inherits": "spark-linux",
-      "displayName": "Spark (Linux | Release)",
+      "name": "spark-api-server-linux-release",
+      "inherits": "spark-api-server-linux",
+      "displayName": "Spark Api Server (Linux | Release)",
      "configuration": "Release"
    },

@@ -322,6 +405,34 @@
      "configurePreset": "sparkd-ccapi-diag",
      "displayName": "Debug (ccapi diag)",
      "inherits": "sparkd"
+    },
+
+    {
+      "name": "data-stream-suite-windows-debug",
+      "displayName": "Data Stream Suite (Windows | Debug)",
+      "configurePreset": "data-stream-suite-windows",
+      "configuration": "Debug"
+    },
+
+    {
+      "name": "data-stream-suite-windows-release",
+      "displayName": "Data Stream Suite (Windows | Release)",
+      "configurePreset": "data-stream-suite-windows",
+      "configuration": "Release"
+    },
+
+    {
+      "name": "data-stream-suite-linux-debug",
+      "displayName": "Data Stream Suite (Linux | Debug)",
+      "configurePreset": "data-stream-suite-linux",
+      "configuration": "Debug"
+    },
+
+    {
+      "name": "data-stream-suite-linux-release",
+      "displayName": "Data Stream Suite (Linux | Release)",
+      "configurePreset": "data-stream-suite-linux",
+      "configuration": "Release"
    }
  ]
 }
@@ -1,11 +1,10 @@
-
-Microsoft Visual Studio Solution File, Format Version 12.00
+Microsoft Visual Studio Solution File, Format Version 12.00
 # Visual Studio Version 17
 VisualStudioVersion = 17.3.32922.545
 MinimumVisualStudioVersion = 15.0.26124.0
-Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "Bts.Spark.Api", "src\cs\Bts.Spark.Api\Bts.Spark.Api.csproj", "{DC9A8975-8211-4FC9-A9BA-C8B9D26AD481}"
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "spark_api", "src\client\spark_api\spark_api.csproj", "{DC9A8975-8211-4FC9-A9BA-C8B9D26AD481}"
 EndProject
-Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "Bts.Spark.Core", "src\cs\Bts.Spark.Core\Bts.Spark.Core.csproj", "{6E449EB6-20AC-4FA6-B8D9-10F4BB7E1FEE}"
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "spark_core", "src\client\spark_core\spark_core.csproj", "{6E449EB6-20AC-4FA6-B8D9-10F4BB7E1FEE}"
 EndProject
 Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "spark_websocket", "src\client\spark_websocket\spark_websocket.csproj", "{3201359D-C071-4089-9EDE-B04D759F1508}"
 EndProject
@@ -15,584 +14,66 @@ Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "spark_test", "src\client\sp
 EndProject
 Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Spark.Console", "src\client\Spark.Console\Spark.Console.csproj", "{89D666E6-B500-498F-B026-4D167F68ADFC}"
 EndProject
-Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "src", "src", "{267F81EF-A8AB-49FD-9F56-D7EC3C1F7C7C}"
-EndProject
-Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "DataStreamSuite", "DataStreamSuite", "{C09ED521-D2DF-40BC-A76F-EB3CB870B2F6}"
-EndProject
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "DataStreamCore", "src\DataStreamSuite\DataStreamCore\DataStreamCore.csproj", "{EF26A475-6101-4C9C-A717-D60BB92A2302}"
-EndProject
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "SharedStreams", "src\DataStreamSuite\SharedStreams\SharedStreams.csproj", "{911B08A3-515A-441D-84C8-8A43740B5FC1}"
-EndProject
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "PubSub", "src\DataStreamSuite\PubSub\PubSub.csproj", "{14140310-2233-430A-821B-F3058A25234B}"
-EndProject
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "BaseUtilities", "src\DataStreamSuite\BaseUtilities\BaseUtilities.csproj", "{43146EA8-6FCC-46B8-88B0-42F9BB5E6E0A}"
-EndProject
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "ExpressionCore", "src\DataStreamSuite\ExpressionCore\ExpressionCore.csproj", "{6F22DB96-6EAB-4034-99D9-287021C36F01}"
-EndProject
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "ArithmeticExpressions", "src\DataStreamSuite\ArithmeticExpressions\ArithmeticExpressions.csproj", "{A5C33956-A41F-49B3-A41D-1082CBA59D02}"
-EndProject
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "DataStreamExpressions", "src\DataStreamSuite\DataStreamExpressions\DataStreamExpressions.csproj", "{2FE745C3-1EDF-4421-8CD7-A63EE0C1AE43}"
-EndProject
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Bts.ColumnSortExpressions", "src\DataStreamSuite\Bts.ColumnSortExpressions\Bts.ColumnSortExpressions.csproj", "{FDA791E0-2B91-4AD5-B91D-CF920A4C4E38}"
-EndProject
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "ColumnMapExpressions", "src\DataStreamSuite\ColumnMapExpressions\ColumnMapExpressions.csproj", "{B945A183-2174-4ACB-B289-8A5C546656FE}"
-EndProject
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "BooleanExpressions", "src\DataStreamSuite\BooleanExpressions\BooleanExpressions.csproj", "{9F6D7DE8-185B-4C1D-B809-3314D092DF28}"
-EndProject
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Bts.ColumnExpressions", "src\DataStreamSuite\Bts.ColumnExpressions\Bts.ColumnExpressions.csproj", "{6BD3F6D8-B6FC-44E8-B8FE-06352F638B9B}"
-EndProject
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "DataStream", "src\DataStreamSuite\DataStream\DataStream.csproj", "{39AEA075-6457-46C0-8821-1158BE6EFA57}"
-EndProject
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Bts.Extensions.Hosting", "src\cs\Bts.Extensions.Hosting\Bts.Extensions.Hosting.csproj", "{F3DC52D7-8C59-4EC0-86D9-0E5732EAFCF7}"
-EndProject
-Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "cs", "cs", "{385C4948-E080-56A6-E29E-8B0F4913175C}"
-EndProject
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Bts.Net", "src\cs\Bts.Net\Bts.Net.csproj", "{43FB297B-7A4D-4835-A878-E6DF345B580C}"
-EndProject
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Bts.IO.Compression", "src\cs\Bts.IO.Compression\Bts.IO.Compression.csproj", "{BC277499-8215-4F9F-B9AB-07B6391110BF}"
-EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
 		Debug|x64 = Debug|x64
-		Debug|Any CPU = Debug|Any CPU
-		Debug|x86 = Debug|x86
 		MinSizeRel|x64 = MinSizeRel|x64
-		MinSizeRel|Any CPU = MinSizeRel|Any CPU
-		MinSizeRel|x86 = MinSizeRel|x86
 		Release|x64 = Release|x64
-		Release|Any CPU = Release|Any CPU
-		Release|x86 = Release|x86
 		RelWithDebInfo|x64 = RelWithDebInfo|x64
-		RelWithDebInfo|Any CPU = RelWithDebInfo|Any CPU
-		RelWithDebInfo|x86 = RelWithDebInfo|x86
 	EndGlobalSection
 	GlobalSection(ProjectConfigurationPlatforms) = postSolution
 		{DC9A8975-8211-4FC9-A9BA-C8B9D26AD481}.Debug|x64.ActiveCfg = Debug|x64
 		{DC9A8975-8211-4FC9-A9BA-C8B9D26AD481}.Debug|x64.Build.0 = Debug|x64
-		{DC9A8975-8211-4FC9-A9BA-C8B9D26AD481}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
-		{DC9A8975-8211-4FC9-A9BA-C8B9D26AD481}.Debug|Any CPU.Build.0 = Debug|Any CPU
-		{DC9A8975-8211-4FC9-A9BA-C8B9D26AD481}.Debug|x86.ActiveCfg = Debug|Any CPU
-		{DC9A8975-8211-4FC9-A9BA-C8B9D26AD481}.Debug|x86.Build.0 = Debug|Any CPU
 		{DC9A8975-8211-4FC9-A9BA-C8B9D26AD481}.MinSizeRel|x64.ActiveCfg = Release|x64
 		{DC9A8975-8211-4FC9-A9BA-C8B9D26AD481}.MinSizeRel|x64.Build.0 = Release|x64
-		{DC9A8975-8211-4FC9-A9BA-C8B9D26AD481}.MinSizeRel|Any CPU.ActiveCfg = MinSizeRel|Any CPU
-		{DC9A8975-8211-4FC9-A9BA-C8B9D26AD481}.MinSizeRel|Any CPU.Build.0 = MinSizeRel|Any CPU
-		{DC9A8975-8211-4FC9-A9BA-C8B9D26AD481}.MinSizeRel|x86.ActiveCfg = MinSizeRel|Any CPU
-		{DC9A8975-8211-4FC9-A9BA-C8B9D26AD481}.MinSizeRel|x86.Build.0 = MinSizeRel|Any CPU
 		{DC9A8975-8211-4FC9-A9BA-C8B9D26AD481}.Release|x64.ActiveCfg = Release|x64
 		{DC9A8975-8211-4FC9-A9BA-C8B9D26AD481}.Release|x64.Build.0 = Release|x64
-		{DC9A8975-8211-4FC9-A9BA-C8B9D26AD481}.Release|Any CPU.ActiveCfg = Release|Any CPU
-		{DC9A8975-8211-4FC9-A9BA-C8B9D26AD481}.Release|Any CPU.Build.0 = Release|Any CPU
-		{DC9A8975-8211-4FC9-A9BA-C8B9D26AD481}.Release|x86.ActiveCfg = Release|Any CPU
-		{DC9A8975-8211-4FC9-A9BA-C8B9D26AD481}.Release|x86.Build.0 = Release|Any CPU
 		{DC9A8975-8211-4FC9-A9BA-C8B9D26AD481}.RelWithDebInfo|x64.ActiveCfg = Release|x64
 		{DC9A8975-8211-4FC9-A9BA-C8B9D26AD481}.RelWithDebInfo|x64.Build.0 = Release|x64
-		{DC9A8975-8211-4FC9-A9BA-C8B9D26AD481}.RelWithDebInfo|Any CPU.ActiveCfg = RelWithDebInfo|Any CPU
-		{DC9A8975-8211-4FC9-A9BA-C8B9D26AD481}.RelWithDebInfo|Any CPU.Build.0 = RelWithDebInfo|Any CPU
-		{DC9A8975-8211-4FC9-A9BA-C8B9D26AD481}.RelWithDebInfo|x86.ActiveCfg = RelWithDebInfo|Any CPU
-		{DC9A8975-8211-4FC9-A9BA-C8B9D26AD481}.RelWithDebInfo|x86.Build.0 = RelWithDebInfo|Any CPU
 		{6E449EB6-20AC-4FA6-B8D9-10F4BB7E1FEE}.Debug|x64.ActiveCfg = Debug|x64
 		{6E449EB6-20AC-4FA6-B8D9-10F4BB7E1FEE}.Debug|x64.Build.0 = Debug|x64
-		{6E449EB6-20AC-4FA6-B8D9-10F4BB7E1FEE}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
-		{6E449EB6-20AC-4FA6-B8D9-10F4BB7E1FEE}.Debug|Any CPU.Build.0 = Debug|Any CPU
-		{6E449EB6-20AC-4FA6-B8D9-10F4BB7E1FEE}.Debug|x86.ActiveCfg = Debug|Any CPU
-		{6E449EB6-20AC-4FA6-B8D9-10F4BB7E1FEE}.Debug|x86.Build.0 = Debug|Any CPU
 		{6E449EB6-20AC-4FA6-B8D9-10F4BB7E1FEE}.MinSizeRel|x64.ActiveCfg = Release|x64
 		{6E449EB6-20AC-4FA6-B8D9-10F4BB7E1FEE}.MinSizeRel|x64.Build.0 = Release|x64
-		{6E449EB6-20AC-4FA6-B8D9-10F4BB7E1FEE}.MinSizeRel|Any CPU.ActiveCfg = MinSizeRel|Any CPU
-		{6E449EB6-20AC-4FA6-B8D9-10F4BB7E1FEE}.MinSizeRel|Any CPU.Build.0 = MinSizeRel|Any CPU
-		{6E449EB6-20AC-4FA6-B8D9-10F4BB7E1FEE}.MinSizeRel|x86.ActiveCfg = MinSizeRel|Any CPU
-		{6E449EB6-20AC-4FA6-B8D9-10F4BB7E1FEE}.MinSizeRel|x86.Build.0 = MinSizeRel|Any CPU
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 	EndGlobalSection
 	GlobalSection(SolutionProperties) = preSolution
 		HideSolutionNode = FALSE
 	EndGlobalSection
-	GlobalSection(NestedProjects) = preSolution
-		{C09ED521-D2DF-40BC-A76F-EB3CB870B2F6} = {267F81EF-A8AB-49FD-9F56-D7EC3C1F7C7C}
-		{EF26A475-6101-4C9C-A717-D60BB92A2302} = {C09ED521-D2DF-40BC-A76F-EB3CB870B2F6}
-		{911B08A3-515A-441D-84C8-8A43740B5FC1} = {C09ED521-D2DF-40BC-A76F-EB3CB870B2F6}
-		{14140310-2233-430A-821B-F3058A25234B} = {C09ED521-D2DF-40BC-A76F-EB3CB870B2F6}
-		{43146EA8-6FCC-46B8-88B0-42F9BB5E6E0A} = {C09ED521-D2DF-40BC-A76F-EB3CB870B2F6}
-		{6F22DB96-6EAB-4034-99D9-287021C36F01} = {C09ED521-D2DF-40BC-A76F-EB3CB870B2F6}
-		{A5C33956-A41F-49B3-A41D-1082CBA59D02} = {C09ED521-D2DF-40BC-A76F-EB3CB870B2F6}
-		{2FE745C3-1EDF-4421-8CD7-A63EE0C1AE43} = {C09ED521-D2DF-40BC-A76F-EB3CB870B2F6}
-		{FDA791E0-2B91-4AD5-B91D-CF920A4C4E38} = {C09ED521-D2DF-40BC-A76F-EB3CB870B2F6}
-		{B945A183-2174-4ACB-B289-8A5C546656FE} = {C09ED521-D2DF-40BC-A76F-EB3CB870B2F6}
-		{9F6D7DE8-185B-4C1D-B809-3314D092DF28} = {C09ED521-D2DF-40BC-A76F-EB3CB870B2F6}
-		{6BD3F6D8-B6FC-44E8-B8FE-06352F638B9B} = {C09ED521-D2DF-40BC-A76F-EB3CB870B2F6}
-		{39AEA075-6457-46C0-8821-1158BE6EFA57} = {C09ED521-D2DF-40BC-A76F-EB3CB870B2F6}
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-		{BC277499-8215-4F9F-B9AB-07B6391110BF} = {385C4948-E080-56A6-E29E-8B0F4913175C}
-	EndGlobalSection
 	GlobalSection(ExtensibilityGlobals) = postSolution
 		SolutionGuid = {422D1620-0166-4C26-9A81-CA8A2EB1AB58}
 	EndGlobalSection
@@ -1,7 +0,0 @@
-include_guard(GLOBAL)
-
-macro(export_to_parent)
-  foreach(var IN ITEMS ${ARGN})
-    set(${var} ${${var}} PARENT_SCOPE)
-  endforeach()
-endmacro()
@@ -1,48 +0,0 @@
-include_guard(GLOBAL)
-
-function(get_version_from_git)
-  find_package(Git QUIET)
-  if(NOT Git_FOUND)
-    message(WARNING "Git not found")
-    return()
-  endif()
-
-  execute_process(
-    COMMAND ${GIT_EXECUTABLE} describe --tags --always
-    WORKING_DIRECTORY ${CMAKE_SOURCE_DIR}
-    OUTPUT_VARIABLE GIT_TAG
-    OUTPUT_STRIP_TRAILING_WHITESPACE
-    RESULT_VARIABLE GIT_RESULT
-  )
-
-  if(NOT GIT_RESULT EQUAL 0)
-    message(WARNING "Failed to get git tag")
-    return()
-  endif()
-
-  execute_process(
-    COMMAND ${GIT_EXECUTABLE} rev-parse --short=7 HEAD
-    WORKING_DIRECTORY ${CMAKE_SOURCE_DIR}
-    OUTPUT_VARIABLE GIT_COMMIT_SHORT_HASH
-    OUTPUT_STRIP_TRAILING_WHITESPACE
-  )
-  set(PROJECT_VERSION_BUILD_METADATA ${GIT_COMMIT_SHORT_HASH})
-  set(PROJECT_VERSION_BUILD_METADATA ${GIT_COMMIT_SHORT_HASH} PARENT_SCOPE)
-
-  string(REGEX REPLACE "^v" "" CLEAN_TAG "${GIT_TAG}")
-  if(CLEAN_TAG MATCHES "^([0-9]+)\\.([0-9]+)\\.([0-9]+)(-.*)?$")
-    set(PROJECT_VERSION_MAJOR ${CMAKE_MATCH_1})
-    set(PROJECT_VERSION_MAJOR ${CMAKE_MATCH_1} PARENT_SCOPE)
-    set(PROJECT_VERSION_MINOR ${CMAKE_MATCH_2})
-    set(PROJECT_VERSION_MINOR ${CMAKE_MATCH_2} PARENT_SCOPE)
-    set(PROJECT_VERSION_PATCH ${CMAKE_MATCH_3})
-    set(PROJECT_VERSION_PATCH ${CMAKE_MATCH_3} PARENT_SCOPE)
-
-    set(PROJECT_VERSION "${CMAKE_MATCH_1}.${CMAKE_MATCH_2}.${CMAKE_MATCH_3}") 
-    set(PROJECT_VERSION "${CMAKE_MATCH_1}.${CMAKE_MATCH_2}.${CMAKE_MATCH_3}" PARENT_SCOPE)
-    set(PROJECT_VERSION_FULL "${CMAKE_MATCH_1}.${CMAKE_MATCH_2}.${CMAKE_MATCH_3}+${GIT_COMMIT_SHORT_HASH}")
-    set(PROJECT_VERSION_FULL "${CMAKE_MATCH_1}.${CMAKE_MATCH_2}.${CMAKE_MATCH_3}+${GIT_COMMIT_SHORT_HASH}" PARENT_SCOPE)
-  else()
-    message(WARNING "Tag '${CLEAN_TAG}' does not match semver format")
-  endif()
-endfunction()
@@ -1,142 +0,0 @@
-include_guard(DIRECTORY)
-include(${CMAKE_SOURCE_DIR}/cmake/ExportToParent.cmake)
-include(${CMAKE_SOURCE_DIR}/cmake/InstallBasic.cmake)
-include(${CMAKE_SOURCE_DIR}/cmake/ProtobufGenerateCpp.cmake)
-include(${CMAKE_SOURCE_DIR}/cmake/SetFirstDefined.cmake)
-include(${CMAKE_SOURCE_DIR}/cmake/safe_dep_glob.cmake)
-
-function(init_library)
-  set(_options SHARED STATIC)
-  set(_one_value_args
-    NAME
-    SOURCE_DIR
-    INCLUDE_DIR
-  )
-  set(_multi_value_args)
-  cmake_parse_arguments(_ARGS "${_options}" "${_one_value_args}" "${_multi_value_args}" ${ARGN})
-  if (_ARGS_SHARED AND _ARGS_STATIC)
-    message(FATAL_ERROR "Invalid args passed to init_library: cannot specify STATIC and SHARED")
-  endif()
-  set_first_defined(_name _ARGS_NAME PROJECT_NAME)
-  set_first_defined(_source_dir _ARGS_SOURCE_DIR _name)
-  set_first_defined(_include_dir _ARGS_INCLUDE_DIR _source_dir)
-
-  # Cpp sources
-  file(
-    GLOB_RECURSE ${_name}_SOURCES
-    RELATIVE ${CMAKE_CURRENT_SOURCE_DIR}
-    ${_source_dir}/*.cpp
-  )
-  # Note: cpp files inside 'tests' dir(s) are considered tests.
-  # Remove tests from main sources, and add them to test sources
-  foreach(item ${${_name}_SOURCES})
-    if(${item} MATCHES "tests/.*\.cpp$")
-      list(APPEND ${_name}_TEST_SOURCES ${item})
-    endif()
-  endforeach()
-  foreach(item ${${_name}_TEST_SOURCES})
-    list(REMOVE_ITEM ${_name}_SOURCES ${item})
-  endforeach()
-
-  # Proto sources 
-  file(
-    GLOB_RECURSE ${_name}_PROTO_SOURCES
-    RELATIVE ${CMAKE_CURRENT_SOURCE_DIR}
-    ${_source_dir}/protobufs/*.proto
-  )
-  update_deps_file("${${_name}_PROTO_SOURCES};")
-  protobuf_generate_cpp(
-    CXX_SOURCES ${_name}_CXX_PROTO_SOURCES
-    CXX_HEADERS ${_name}_CXX_PROTO_HEADERS
-    CXX_OUT_DIR ${CMAKE_CURRENT_BINARY_DIR}
-    PROTO_INCLUDE_DIRS
-      ${EXTERNALS_INCLUDE}
-      ${CMAKE_CURRENT_SOURCE_DIR}
-    PROTO_SOURCES
-      ${${_name}_PROTO_SOURCES}
-  )
-
-  export_to_parent(
-    ${_name}_SOURCES
-    ${_name}_TEST_SOURCES
-    ${_name}_PROTO_SOURCES
-    ${_name}_CXX_PROTO_SOURCES
-    ${_name}_CXX_PROTO_HEADERS
-  )
-
-  # Add main lib
-  if (_ARGS_STATIC)
-    add_library(${_name} STATIC ${${_name}_SOURCES} ${${_name}_CXX_PROTO_SOURCES})
-  elseif(_ARGS_SHARED)
-    add_library(${_name} SHARED ${${_name}_SOURCES} ${${_name}_CXX_PROTO_SOURCES})
-  else()
-    add_library(${_name} ${${_name}_SOURCES} ${${_name}_CXX_PROTO_SOURCES})
-  endif()
-  target_include_directories(
-    ${_name}
-    SYSTEM
-    BEFORE
-    PUBLIC
-      $<BUILD_INTERFACE:${EXTERNALS_ROOT}/include>
-      $<BUILD_INTERFACE:${EXTERNALS_ROOT}/include/zlib>
-  )
-  target_include_directories(
-    ${_name}
-    PUBLIC
-      $<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}>
-      $<INSTALL_INTERFACE:${CMAKE_INSTALL_INCLUDEDIR}>
-  )
-  # Include protos (if any)
-  if (${_name}_PROTO_SOURCES)
-    target_include_directories(
-      ${_name}
-      PUBLIC
-        $<BUILD_INTERFACE:${CMAKE_CURRENT_BINARY_DIR}>
-    )
-  endif()
-  target_link_directories(
-    ${_name}
-    PUBLIC
-      $<BUILD_INTERFACE:${CMAKE_CURRENT_BINARY_DIR}>
-      $<BUILD_INTERFACE:${EXTERNALS_ROOT}/lib/$<CONFIG>>
-      $<INSTALL_INTERFACE:${CMAKE_INSTALL_LIBDIR}>
-  )
-  # Install main lib
-  foreach(_hdr ${${_name}_CXX_PROTO_HEADERS})
-    file(RELATIVE_PATH _relative_path ${CMAKE_CURRENT_BINARY_DIR} ${_hdr})
-    install(FILES ${_hdr} DESTINATION ${CMAKE_INSTALL_INCLUDEDIR}/${_relative_path})
-  endforeach()
-  install_basic(
-    NAME ${_name}
-    INCLUDE_DIR ${_include_dir}
-  )
-
-  # Add tests executable (if there are any)
-  if (${_name}_TEST_SOURCES AND NOT WIN32)
-    add_executable(${_name}-tests ${${_name}_TEST_SOURCES})
-
-    get_target_property(_lib_type ${_name} TYPE)
-    if (_lib_type STREQUAL "SHARED_LIBRARY")
-      # Set RPATH so the tests exe knows where to find the shared lib.
-      set_target_properties(
-        ${_name}-tests
-        PROPERTIES
-          BUILD_RPATH "$ORIGIN"
-          INSTALL_RPATH "$ORIGIN/../${CMAKE_INSTALL_LIBDIR}"
-      )
-    endif()
-
-    # Link main lib
-    target_link_directories(
-      ${_name}-tests
-      PRIVATE
-        $<BUILD_INTERFACE:${CMAKE_CURRENT_BINARY_DIR}>
-        $<INSTALL_INTERFACE:${CMAKE_INSTALL_LIBDIR}>
-    )
-    target_link_libraries(${_name}-tests PRIVATE ${_name})
-
-    # Catch2
-    find_package(Catch2 CONFIG REQUIRED COMPONENTS Catch2WithMain)
-    target_link_libraries(${_name}-tests PRIVATE Catch2::Catch2WithMain)
-  endif()
-endfunction()
@@ -1,71 +0,0 @@
-include_guard(DIRECTORY)
-include(GNUInstallDirs)
-include(${CMAKE_SOURCE_DIR}/cmake/ExportToParent.cmake)
-include(${CMAKE_SOURCE_DIR}/cmake/SetFirstDefined.cmake)
-
-function(init_python_module)
-  set(_options)
-  set(_one_value_args
-    NAME
-  )
-  set(_multi_value_args
-    SOURCES
-  )
-  cmake_parse_arguments(_ARGS "${_options}" "${_one_value_args}" "${_multi_value_args}" ${ARGN})
-  set_first_defined(_name _ARGS_NAME PROJECT_NAME)
-  set_first_defined(_sources _ARGS_SOURCES ${_name}_SOURCES)
-
-  set(module_proj ${_name}_module)
-  set(${module_proj}_SOURCES ${_sources})
-  pybind11_add_module(${module_proj} SHARED ${_sources})
-  target_link_libraries(
-    ${module_proj}
-    PUBLIC
-      pybind11::embed
-      spark
-      ${_name}
-  )
-  target_include_directories(
-    ${module_proj}
-    PRIVATE
-      $<BUILD_INTERFACE:${pybind11_INCLUDE_DIRS}>
-  )
-  target_include_directories(
-    ${module_proj}
-    PUBLIC
-      ${Python3_INCLUDE_DIRS}
-      $<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}>
-      $<INSTALL_INTERFACE:${CMAKE_INSTALL_INCLUDEDIR}>
-  )
-  add_custom_command(
-    OUTPUT ${CMAKE_CURRENT_BINARY_DIR}/stubs/${_name}.pyi
-    DEPENDS ${_name} ${module_proj}
-    COMMAND PYTHONPATH=${CMAKE_CURRENT_BINARY_DIR} pybind11-stubgen --numpy-array-use-type-var --ignore-invalid-expressions '.*' ${_name}_module
-    COMMENT "Generating py stubs"
-  )
-  add_custom_target(
-    "${_name}_py_stubs"
-    ALL
-    DEPENDS
-      ${CMAKE_CURRENT_BINARY_DIR}/stubs/${_name}.pyi
-  )
-  install(
-    TARGETS ${module_proj}
-    EXPORT ${module_proj}Targets
-    RUNTIME
-      DESTINATION ${CMAKE_INSTALL_BINDIR}
-    LIBRARY
-      DESTINATION ${CMAKE_INSTALL_LIBDIR}
-    ARCHIVE
-      DESTINATION ${CMAKE_INSTALL_LIBDIR}
-  )
-  foreach(dir ${pybind11_INCLUDE_DIRS})
-    install(DIRECTORY ${dir} DESTINATION ${CMAKE_INSTALL_INCLUDEDIR})
-  endforeach()
-  install(
-    EXPORT ${module_proj}Targets
-    FILE ${module_proj}Targets.cmake
-    NAMESPACE ${_name}::
-    DESTINATION ${CMAKE_INSTALL_LIBDIR}/cmake/${_name}
-  )
-endfunction()
@@ -1,65 +0,0 @@
-include_guard(DIRECTORY)
-include(GNUInstallDirs)
-
-function(init_python_plugin)
-  set(_options)
-  set(_one_value_args NAME PLUGIN_NAME)
-  set(_multi_value_args SOURCES)
-  cmake_parse_arguments(_ARGS "${_options}" "${_one_value_args}" "${_multi_value_args}" ${ARGN})
-  set_first_defined(_name _ARGS_NAME PROJECT_NAME)
-  set(_plugin_name ${_ARGS_PLUGIN_NAME})
-  if (NOT DEFINED _ARGS_PLUGIN_NAME)
-    set(_plugin_name ${_name}_plugins)
-  endif()
-  set(${_plugin_name}_SOURCES ${_ARGS_SOURCES})
-  if (NOT DEFINED _ARGS_SOURCES)
-    file(
-      GLOB_RECURSE ${_plugin_name}_SOURCES
-      RELATIVE ${CMAKE_CURRENT_SOURCE_DIR}
-      ${_plugin_name}/*.py)
-  endif()
-  set(src_outs)
-  foreach(_src ${${_plugin_name}_SOURCES})
-    set(_src_in ${CMAKE_CURRENT_SOURCE_DIR}/${_src})
-    set(_src_out ${CMAKE_CURRENT_BINARY_DIR}/${_src})
-    add_custom_command(
-      OUTPUT ${_src_out}
-      COMMAND ${CMAKE_COMMAND} -E copy ${_src_in} ${_src_out}
-      DEPENDS ${_src_in}
-      COMMENT "Copying ${_plugin_name} plugin ${_src} to ${_src_out}"
-    )
-    list(APPEND src_outs ${_src_out})
-  endforeach()
-  
-  add_custom_target(copy_${_plugin_name} ALL DEPENDS ${src_outs})
-  
-  add_library(${_plugin_name} INTERFACE)
-  add_library(${_name}::${_plugin_name} ALIAS ${_plugin_name})
-  
-  set_target_properties(
-    ${_plugin_name}
-    PROPERTIES
-      INTERFACE_PYTHON_SCRIPTS_DIR
-        $<BUILD_INTERFACE:${CMAKE_CURRENT_BINARY_DIR}/${_plugin_name}>$<INSTALL_INTERFACE:${CMAKE_INSTALL_BINDIR}/${_plugin_name}>
-  )
-  
-  set_target_properties(
-    ${_plugin_name}
-    PROPERTIES
-    INTERFACE_PYTHON_SCRIPTS $<BUILD_INTERFACE:${CMAKE_CURRENT_BINARY_DIR}/${${_plugin_name}_SOURCES}>$<INSTALL_INTERFACE:${CMAKE_INSTALL_BINDIR}/${${_plugin_name}_SOURCES}>
-  )
-  
-  install(
-    TARGETS ${_plugin_name}
-    EXPORT ${_plugin_name}Targets
-    DESTINATION ${CMAKE_INSTALL_BINDIR}
-  )
-  
-  install(
-    EXPORT ${_plugin_name}Targets
-    FILE ${_plugin_name}Targets.cmake
-    NAMESPACE ${_name}::
-    DESTINATION ${CMAKE_INSTALL_LIBDIR}/cmake/${_name}
-  )
-  install(DIRECTORY ${_plugin_name} DESTINATION ${CMAKE_INSTALL_BINDIR})
-endfunction()
@@ -1,39 +0,0 @@
-include_guard(DIRECTORY)
-include(GNUInstallDirs)
-include(${CMAKE_SOURCE_DIR}/cmake/PackBasic.cmake)
-include(${CMAKE_SOURCE_DIR}/cmake/SetFirstDefined.cmake)
-
-function(install_basic)
-  set(_options)
-  set(_one_value_args NAME INCLUDE_DIR)
-  set(_multi_value_args)
-  cmake_parse_arguments(_ARGS "${_options}" "${_one_value_args}" "${_multi_value_args}" ${ARGN})
-  set_first_defined(_name _ARGS_NAME PROJECT_NAME)
-  set_first_defined(_include_dir _ARGS_INCLUDE_DIR _name)
-
-  file(
-    GLOB_RECURSE ${_name}_HEADERS
-    RELATIVE ${CMAKE_CURRENT_SOURCE_DIR}
-    ${_include_dir}/*.h)
-
-  target_sources(${_name}
-    PUBLIC
-      FILE_SET HEADERS FILES ${${_name}_HEADERS})
-
-  install(
-    TARGETS ${_name}
-    EXPORT ${_name}Targets
-    RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR}
-    LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR}
-    ARCHIVE DESTINATION ${CMAKE_INSTALL_LIBDIR}
-    FILE_SET HEADERS DESTINATION ${CMAKE_INSTALL_INCLUDEDIR}
-  )
-
-  install(
-    EXPORT ${_name}Targets
-    FILE ${_name}Targets.cmake
-    NAMESPACE ${_name}::
-    DESTINATION ${CMAKE_INSTALL_LIBDIR}/cmake/${_name})
-
-  pack_basic()
-endfunction()
@@ -1,44 +0,0 @@
-include_guard(DIRECTORY)
-include(CMakePackageConfigHelpers)
-include(${CMAKE_SOURCE_DIR}/cmake/SetFirstDefined.cmake)
-
-function(pack_basic)
-  set(_options)
-  set(_one_value_args NAME)
-  set(_multi_value_args)
-  cmake_parse_arguments(_ARGS "${_options}" "${_one_value_args}" "${_multi_value_args}" ${ARGN})
-  set_first_defined(_name _ARGS_NAME PROJECT_NAME)
-
-  find_package(Git QUIET)
-
-  if(GIT_FOUND)
-    execute_process(
-      COMMAND ${GIT_EXECUTABLE} describe --tags --always --dirty
-      WORKING_DIRECTORY ${CMAKE_SOURCE_DIR}
-      OUTPUT_VARIABLE PROJECT_VERSION
-      OUTPUT_STRIP_TRAILING_WHITESPACE
-    )
-  endif()
-
-  if(NOT GIT_FOUND OR PROJECT_VERSION STREQUAL "")
-    set(PROJECT_VERSION "0.0.0")
-  endif()
-
-  write_basic_package_version_file(
-    "${CMAKE_CURRENT_BINARY_DIR}/${_name}ConfigVersion.cmake"
-    VERSION ${PROJECT_VERSION}
-    COMPATIBILITY AnyNewerVersion
-  )
-
-  configure_package_config_file(
-    "${CMAKE_CURRENT_SOURCE_DIR}/Config.cmake.in"
-    "${CMAKE_CURRENT_BINARY_DIR}/${_name}Config.cmake"
-    INSTALL_DESTINATION ${CMAKE_INSTALL_LIBDIR}/cmake/${_name}
-  )
-
-  install(
-    FILES
-      "${CMAKE_CURRENT_BINARY_DIR}/${_name}Config.cmake"
-      "${CMAKE_CURRENT_BINARY_DIR}/${_name}ConfigVersion.cmake"
-    DESTINATION ${CMAKE_INSTALL_LIBDIR}/cmake/${_name})
-endfunction()
@@ -0,0 +1,145 @@
+set(Protobuf_PROTOC_EXECUTABLE "${SPARK_BIN}/protoc")
+set(PROTOBUF_INCLUDE_DIRS "${SPARK_INCLUDE}")
+set(PROTOBUF_STATIC_LIB "libprotobuf")
+
+function(Protobuf_Generate_Cpp SRCS HDRS)
+  set(${SRCS})
+  set(${HDRS})
+
+  foreach(FIL ${ARGN})
+    get_filename_component(ABS_FIL ${FIL} ABSOLUTE)
+    get_filename_component(FIL_WE ${FIL} NAME_WE)
+    get_filename_component(FIL_DIR ${FIL} DIRECTORY)
+    if(FIL_DIR)
+      set(FIL_WE "${FIL_DIR}/${FIL_WE}")
+    endif()
+
+    list(APPEND ${SRCS} "${CMAKE_CURRENT_BINARY_DIR}/${FIL_WE}.pb.cc")
+    list(APPEND ${HDRS} "${CMAKE_CURRENT_BINARY_DIR}/${FIL_WE}.pb.h")
+
+    add_custom_command(
+      OUTPUT "${CMAKE_CURRENT_BINARY_DIR}/${FIL_WE}.pb.cc"
+             "${CMAKE_CURRENT_BINARY_DIR}/${FIL_WE}.pb.h"
+      COMMAND
+        ${Protobuf_PROTOC_EXECUTABLE} ARGS --cpp_out=${CMAKE_BINARY_DIR}/src -I
+        ${PROTOBUF_INCLUDE_DIRS} -I ${CMAKE_SOURCE_DIR}/src ${ABS_FIL}
+      DEPENDS ${ABS_FIL}
+      COMMENT "Running C++ protocol buffer compiler on ${FIL}"
+      VERBATIM)
+  endforeach()
+
+  set_source_files_properties(${${SRCS}} ${${HDRS}} PROPERTIES GENERATED TRUE)
+
+  # remove some warnings from protobuf generated files
+  if(WIN32)
+    set_source_files_properties(${${SRCS}} PROPERTIES COMPILE_FLAGS
+                                                      "/wd4309 /wd4838")
+  else()
+    set_source_files_properties(
+      ${${SRCS}}
+      PROPERTIES
+        COMPILE_FLAGS
+        "-Wno-unused-parameter -Wno-effc++ -Wno-pedantic -Wno-sign-compare -Wno-uninitialized"
+    )
+  endif()
+
+  set(${SRCS}
+      ${${SRCS}}
+      PARENT_SCOPE)
+  set(${HDRS}
+      ${${HDRS}}
+      PARENT_SCOPE)
+endfunction()
+
+function(Service_Compiler_Generate_Cpp SRCS HDRS)
+  set(${SRCS})
+  set(${HDRS})
+
+  foreach(FIL ${ARGN})
+    get_filename_component(ABS_FIL ${FIL} ABSOLUTE)
+    get_filename_component(FIL_WE ${FIL} NAME_WE)
+    get_filename_component(FIL_DIR ${FIL} DIRECTORY)
+    if(FIL_DIR)
+      set(FIL_WE "${FIL_DIR}/${FIL_WE}")
+    endif()
+
+    list(APPEND ${SRCS} "${CMAKE_CURRENT_BINARY_DIR}/${FIL_WE}.pb.cc")
+    list(APPEND ${HDRS} "${CMAKE_CURRENT_BINARY_DIR}/${FIL_WE}.pb.h")
+
+    list(APPEND ${SRCS} "${CMAKE_CURRENT_BINARY_DIR}/${FIL_WE}.client.pb.cc")
+    list(APPEND ${HDRS} "${CMAKE_CURRENT_BINARY_DIR}/${FIL_WE}.client.pb.h")
+
+    list(APPEND ${SRCS} "${CMAKE_CURRENT_BINARY_DIR}/${FIL_WE}.server.pb.cc")
+    list(APPEND ${HDRS} "${CMAKE_CURRENT_BINARY_DIR}/${FIL_WE}.server.pb.h")
+
+    set(TEMPLATES
+        ${CMAKE_CURRENT_SOURCE_DIR}/api/service_compiler/templates/cpp/client.pb.cc
+        ${CMAKE_CURRENT_SOURCE_DIR}/api/service_compiler/templates/cpp/client.pb.h
+        ${CMAKE_CURRENT_SOURCE_DIR}/api/service_compiler/templates/cpp/server.pb.cc
+        ${CMAKE_CURRENT_SOURCE_DIR}/api/service_compiler/templates/cpp/server.pb.h
+    )
+
+    if(WIN32)
+      add_custom_command(
+        OUTPUT "${CMAKE_CURRENT_BINARY_DIR}/${FIL_WE}.pb.cc"
+               "${CMAKE_CURRENT_BINARY_DIR}/${FIL_WE}.pb.h"
+               "${CMAKE_CURRENT_BINARY_DIR}/${FIL_WE}.client.pb.cc"
+               "${CMAKE_CURRENT_BINARY_DIR}/${FIL_WE}.client.pb.h"
+               "${CMAKE_CURRENT_BINARY_DIR}/${FIL_WE}.server.pb.cc"
+               "${CMAKE_CURRENT_BINARY_DIR}/${FIL_WE}.server.pb.h"
+        COMMAND SET PYTHONPATH=${SPARK_PYTHON}
+        COMMAND ${CMAKE_SOURCE_DIR}/.venv/Scripts/activate.bat
+        COMMAND
+          ${Protobuf_PROTOC_EXECUTABLE} ARGS --cpp_out=${CMAKE_BINARY_DIR}/src
+          --plugin=protoc-gen-service=${CMAKE_SOURCE_DIR}/src/lib/api/service_compiler/plugin.cmd
+          --service_out=lang=cpp:${CMAKE_BINARY_DIR}/src -I
+          ${PROTOBUF_INCLUDE_DIRS} -I ${CMAKE_SOURCE_DIR}/src ${ABS_FIL}
+        DEPENDS ${ABS_FIL} ${TEMPLATES}
+                ${CMAKE_CURRENT_SOURCE_DIR}/api/service_compiler/plugin.py
+        COMMENT "Running C++ service compiler on ${FIL}"
+        VERBATIM)
+    else()
+      add_custom_command(
+        OUTPUT "${CMAKE_CURRENT_BINARY_DIR}/${FIL_WE}.pb.cc"
+               "${CMAKE_CURRENT_BINARY_DIR}/${FIL_WE}.pb.h"
+               "${CMAKE_CURRENT_BINARY_DIR}/${FIL_WE}.client.pb.cc"
+               "${CMAKE_CURRENT_BINARY_DIR}/${FIL_WE}.client.pb.h"
+               "${CMAKE_CURRENT_BINARY_DIR}/${FIL_WE}.server.pb.cc"
+               "${CMAKE_CURRENT_BINARY_DIR}/${FIL_WE}.server.pb.h"
+        COMMAND ${CMAKE_SOURCE_DIR}/tools/venv_exec.sh
+        ARGS
+          ${Protobuf_PROTOC_EXECUTABLE}
+          --cpp_out=${CMAKE_BINARY_DIR}/src
+          --plugin=protoc-gen-service=${CMAKE_SOURCE_DIR}/src/lib/api/service_compiler/plugin.py
+          --service_out=lang=cpp,make_file_name=${ABS_FIL}:${CMAKE_BINARY_DIR}/src
+          -I ${PROTOBUF_INCLUDE_DIRS} -I ${CMAKE_SOURCE_DIR}/src ${ABS_FIL}
+        DEPENDS ${ABS_FIL} ${TEMPLATES}
+                ${CMAKE_CURRENT_SOURCE_DIR}/api/service_compiler/plugin.py
+        COMMENT "Running C++ service compiler on ${FIL}"
+        VERBATIM)
+    endif()
+
+  endforeach()
+
+  # remove some warnings from protobuf generated files
+  if(WIN32)
+    set_source_files_properties(${${SRCS}} PROPERTIES COMPILE_FLAGS
+                                                      "/wd4309 /wd4838")
+  else()
+    set_source_files_properties(
+      ${${SRCS}}
+      PROPERTIES
+        COMPILE_FLAGS
+        "-Wno-unused-parameter -Wno-effc++ -Wno-pedantic -Wno-sign-compare -Wno-uninitialized"
+    )
+  endif()
+
+  set(${SRCS}
+      ${${SRCS}}
+      PARENT_SCOPE)
+  set(${HDRS}
+      ${${HDRS}}
+      PARENT_SCOPE)
+
+endfunction()
+
@@ -1,83 +0,0 @@
-include_guard(GLOBAL)
-
-function(protobuf_generate_cpp)
-  set(_options)
-  set(_one_value_args
-    CXX_SOURCES
-    CXX_HEADERS
-    CXX_OUT_DIR
-    PROTOC
-  )
-  set(_multi_value_args
-    PROTO_INCLUDE_DIRS
-    PROTO_SOURCES
-  )
-  cmake_parse_arguments(_ARGS "${_options}" "${_one_value_args}" "${_multi_value_args}" ${ARGN})
-
-  if (NOT DEFINED _ARGS_PROTOC)
-    if (WIN32)
-      set(_ARGS_PROTOC "${EXTERNALS_BIN}/protoc.exe")
-    else()
-      set(_ARGS_PROTOC "${EXTERNALS_BIN}/protoc")
-    endif()
-  endif()
-  set(${_ARGS_CXX_SOURCES})
-  set(${_ARGS_CXX_HEADERS})
-
-  set(_proto_include_cli_args)
-  foreach(_dir ${_ARGS_PROTO_INCLUDE_DIRS})
-    list(APPEND _proto_include_cli_args -I ${_dir})
-  endforeach()
-
-  foreach(_fil ${_ARGS_PROTO_SOURCES})
-    get_filename_component(_abs_fil ${_fil} ABSOLUTE)
-    get_filename_component(_fil_we ${_fil} NAME_WE)
-    get_filename_component(_fil_dir ${_fil} DIRECTORY)
-    if(_fil_dir)
-      set(_fil_we "${_fil_dir}/${_fil_we}")
-    endif()
-    list(APPEND ${_ARGS_CXX_SOURCES} "${_ARGS_CXX_OUT_DIR}/${_fil_we}.pb.cc")
-    list(APPEND ${_ARGS_CXX_HEADERS} "${_ARGS_CXX_OUT_DIR}/${_fil_we}.pb.h")
-    message(STATUS "add_custom_command for ${_fil} -> ${_ARGS_CXX_OUT_DIR}/${_fil_we}.pb.h")
-    # TODO: Pass proto sources by relative path (so this fn can be called from
-    # arbitrary subdirs).
-    add_custom_command(
-      OUTPUT
-        "${_ARGS_CXX_OUT_DIR}/${_fil_we}.pb.cc"
-        "${_ARGS_CXX_OUT_DIR}/${_fil_we}.pb.h"
-      COMMAND
-        ${_ARGS_PROTOC}
-      ARGS
-        --cpp_out=${_ARGS_CXX_OUT_DIR} ${_proto_include_cli_args} ${_abs_fil}
-      DEPENDS ${_abs_fil}
-      COMMENT "Running C++ protocol buffer compiler on ${_fil}"
-      VERBATIM
-    )
-  endforeach()
-
-  set_source_files_properties(
-    ${${_ARGS_CXX_SOURCES}}
-    ${${_ARGS_CXX_HEADERS}}
-    PROPERTIES
-      GENERATED TRUE
-  )
-
-  # remove some warnings from protobuf generated files
-  if(WIN32)
-    set_source_files_properties(
-      ${${_ARGS_CXX_SOURCES}}
-      PROPERTIES
-        COMPILE_FLAGS "/wd4309 /wd4838"
-    )
-  else()
-    set_source_files_properties(
-      ${${_ARGS_CXX_SOURCES}}
-      PROPERTIES
-        COMPILE_FLAGS "-Wno-unused-parameter -Wno-effc++ -Wno-pedantic -Wno-sign-compare -Wno-uninitialized"
-    )
-  endif()
-
-  set(${_ARGS_CXX_SOURCES} ${${_ARGS_CXX_SOURCES}} PARENT_SCOPE)
-  set(${_ARGS_CXX_HEADERS} ${${_ARGS_CXX_HEADERS}} PARENT_SCOPE)
-endfunction()
-
@@ -1,61 +0,0 @@
-include_guard(GLOBAL)
-
-function(protobuf_generate_cpp_config)
-  set(_options)
-  set(_one_value_args
-    PROTO_SOURCES_HEADER
-    PROTO_DEFAULTS_HEADER
-  )
-  set(_multi_value_args
-    PROTO_SOURCES
-    PROTO_DEFAULTS
-  )
-  cmake_parse_arguments(_ARGS "${_options}" "${_one_value_args}" "${_multi_value_args}" ${ARGN})
-
-  # Configure the 'config_proto_files' header. It provides an array of strings populated with the
-  # files in PROTO_SOURCES. At runtime, we use this array to generate a special 'config' proto
-  # message with fields for each message defined in said files. A global instance of this 'config'
-  # proto is then constructed, and populated with [compile-time] defaults, and [runtime] overrides
-  # (i.e., in spark.conf). Calls to `bts::config::get<T>()` retrieve the value from the field
-  # associated with type `T` in this global instance.
-  message(STATUS "PROTO_SOURCES: ${_ARGS_PROTO_SOURCES}")
-  message(STATUS "PROTO_SOURCES_HEADER: ${_ARGS_PROTO_SOURCES_HEADER}")
-  message(STATUS "PROTO_DEFAULTS_HEADER: ${_ARGS_PROTO_DEFAULTS_HEADER}")
-  if (_ARGS_PROTO_SOURCES_HEADER)
-    set(PROTO_SOURCES)
-    set(PROTO_SOURCES_CXX_ARRAY_ITEMS "")
-    foreach(_proto_path ${_ARGS_PROTO_SOURCES})
-      list(APPEND PROTO_SOURCES ${_proto_path})
-      string(APPEND PROTO_SOURCES_CXX_ARRAY_ITEMS "\"${_proto_path}\",\n")
-    endforeach()
-    list(LENGTH PROTO_SOURCES PROTO_SOURCES_LENGTH)
-    message(STATUS "CONFIGURING PROTO_SOURCES_HEADER): ${_ARGS_PROTO_SOURCES_HEADER}")
-    configure_file(${CMAKE_SOURCE_DIR}/cmake/config_proto_files.h.in ${_ARGS_PROTO_SOURCES_HEADER})
-  endif()
-
-  # Generate static defaults. Ideally, this would be a single string, but we use an array because
-  # the compiler complains if the string is longer than 65k.
-  set(_cfg_defaults_str "inline const char * config_static_defaults[] = { ")
-
-  foreach(_cfg_file_path ${_ARGS_PROTO_DEFAULTS})
-    file(READ ${_cfg_file_path} _cfg_file_content)
-    string(REPLACE "\"" "\\\"" _cfg_file_content_escaped ${_cfg_file_content})
-    string(REPLACE "\n" ";" _cfg_lines ${_cfg_file_content_escaped})
-
-    foreach(_line ${_cfg_lines})
-      string(APPEND _cfg_defaults_str "\n  \"${_line}\",")
-    endforeach(_line)
-  endforeach(_cfg_file_path)
-
-  string(APPEND _cfg_defaults_str "};")
-  set(_old_cfg_defaults_str "")
-
-  if(EXISTS ${_ARGS_PROTO_DEFAULTS_HEADER})
-    file(READ ${_ARGS_PROTO_DEFAULTS_HEADER} _old_cfg_defaults_str)
-  endif()
-
-  if(NOT _cfg_defaults_str STREQUAL _old_cfg_defaults_str)
-    file(WRITE "${_ARGS_PROTO_DEFAULTS_HEADER}" "${_cfg_defaults_str}")
-  endif()
-endfunction()
-
@@ -1,49 +0,0 @@
-include_guard(DIRECTORY)
-
-function(protobuf_generate_fs)
-  set(_options)
-  set(_one_value_args TARGET_NAME OUT_DIR PROTOC)
-  set(_multi_value_args PROTO_INCLUDE_DIRS PROTO_SOURCES)
-  cmake_parse_arguments(_ARGS "${_options}" "${_one_value_args}" "${_multi_value_args}" ${ARGN})
-
-  if (NOT DEFINED _ARGS_TARGET_NAME)
-    set(_ARGS_TARGET_NAME "${PROJECT_NAME}_generate_fs_protos")
-  endif()
-  if (NOT DEFINED _ARGS_PROTOC)
-    set(_ARGS_PROTOC "${EXTERNALS_BIN}/protoc")
-  endif()
-
-  set(_proto_include_cli_args)
-  foreach(_dir ${_ARGS_PROTO_INCLUDE_DIRS})
-    list(APPEND _proto_include_cli_args -I ${_dir})
-  endforeach()
-
-  set(_outputs)
-  foreach(_proto_source ${_ARGS_PROTO_SOURCES})
-    # get_filename_component(_abs_proto_source ${_proto_source} ABSOLUTE)
-    get_filename_component(_proto_source_we ${_proto_source} NAME_WE)
-    # get_filename_component(_proto_source_dir ${_proto_source} DIRECTORY)
-    list(APPEND _outputs ${_ARGS_OUT_DIR}/${_proto_source_we}.fable.fs)
-  endforeach()
-
-  set(_venv_exec ${CMAKE_SOURCE_DIR}/tools/venv_exec.sh)
-  set(_plugin_py ${CMAKE_SOURCE_DIR}/src/lib_spark/spark/api/service_compiler/plugin.py)
-  set(_template_fs ${CMAKE_SOURCE_DIR}/src/lib_spark/spark/api/service_compiler/templates/fs/fable.fs)
-  add_custom_command(
-    OUTPUT ${_outputs}
-    WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}
-    COMMAND ${_venv_exec}
-      ${_ARGS_PROTOC}
-      --plugin=protoc-gen-service=${_plugin_py}
-      --service_out=lang=fs,strip_out_path=1:${_ARGS_OUT_DIR}
-      ${_proto_include_cli_args}
-      ${_ARGS_PROTO_SOURCES}
-    DEPENDS
-      ${_venv_exec}
-      ${_plugin_py}
-      ${_template_fs}
-      ${CMAKE_CURRENT_SOURCE_DIR}/package-lock.json
-      ${_ARGS_PROTO_SOURCES}
-  )
-  add_custom_target(${_ARGS_TARGET_NAME} ALL DEPENDS "${_outputs}")
-endfunction()
@@ -1,33 +0,0 @@
-include_guard(DIRECTORY)
-
-function(protobuf_generate_js)
-  set(_options)
-  set(_one_value_args TARGET_NAME OUTPUT)
-  set(_multi_value_args PROTO_INCLUDE_DIRS PROTO_SOURCES)
-  cmake_parse_arguments(_ARGS "${_options}" "${_one_value_args}" "${_multi_value_args}" ${ARGN})
-
-  if (NOT DEFINED _ARGS_TARGET_NAME)
-    set(_ARGS_TARGET_NAME "${PROJECT_NAME}_generate_js_protos")
-  endif()
-
-  set(_proto_include_cli_args)
-  foreach(_dir ${_ARGS_PROTO_INCLUDE_DIRS})
-    list(APPEND _proto_include_cli_args -p ${_dir})
-  endforeach()
-
-  add_custom_command(
-    OUTPUT ${_ARGS_OUTPUT}
-    WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}
-    COMMAND npx
-      --no-install pbjs
-      -t json-module
-      -w commonjs
-      -o ${_ARGS_OUTPUT}
-      ${_proto_include_cli_args}
-      ${_ARGS_PROTO_SOURCES}
-    DEPENDS
-      ${CMAKE_CURRENT_SOURCE_DIR}/package-lock.json
-      ${_ARGS_PROTO_SOURCES}
-  )
-  add_custom_target(${_ARGS_TARGET_NAME} ALL DEPENDS ${_ARGS_OUTPUT})
-endfunction()
@@ -1,10 +0,0 @@
-include_guard(GLOBAL)
-
-macro(set_first_defined RESULT)
-  foreach(_arg ${ARGN})
-    if (DEFINED ${_arg})
-      set(${RESULT} ${${_arg}})
-      break()
-    endif()
-  endforeach()
-endmacro()
@@ -1,49 +0,0 @@
-include_guard(DIRECTORY)
-include(${CMAKE_SOURCE_DIR}/cmake/TernaryOperator.cmake)
-
-function(sym_link_dir)
-  set(_options)
-  set(_one_value_args TARGET_NAME SOURCE DEST COMMENT)
-  set(_multi_value_args)
-  cmake_parse_arguments(_ARGS "${_options}" "${_one_value_args}" "${_multi_value_args}" ${ARGN})
-  add_custom_command(
-    OUTPUT ${_ARGS_DEST}
-    COMMAND ln ARGS -sf ${_ARGS_SOURCE} ${_ARGS_DEST}
-  )
-  set_ternary(_comment _ARGS_COMMENT "${_ARGS_COMMENT}" "linking dir ${_ARGS_SOURCE} -> ${_ARGS_DEST}")
-  add_custom_target(
-    ${_ARGS_TARGET_NAME} ALL
-    DEPENDS ${_ARGS_DEST}
-    COMMENT "${_comment}"
-  )
-endfunction()
-
-function(sym_link_file)
-  set(_options)
-  set(_one_value_args SOURCE DEST INSTALL_DEST)
-  set(_multi_value_args)
-  cmake_parse_arguments(_ARGS "${_options}" "${_one_value_args}" "${_multi_value_args}" ${ARGN})
-  file(
-    CREATE_LINK
-      ${_ARGS_SOURCE}
-      ${_ARGS_DEST}
-    SYMBOLIC
-  )
-  if (DEFINED _ARGS_INSTALL_DEST)
-    install(
-      FILES
-      ${_ARGS_SOURCE}
-      DESTINATION ${_ARGS_INSTALL_DEST}
-    )
-  endif()
-endfunction()
-
-function(sym_link_local_lib LIB_NAME)
-  set(_lib_file_name "${CMAKE_SHARED_LIBRARY_PREFIX}${LIB_NAME}.so")
-  file(
-    CREATE_LINK
-      "${CMAKE_BINARY_DIR}/src/lib_${LIB_NAME}/${_lib_file_name}"
-      "${CMAKE_CURRENT_BINARY_DIR}/${_lib_file_name}"
-    SYMBOLIC
-  )
-endfunction()
@@ -1,39 +0,0 @@
-include_guard(DIRECTORY)
-include(${CMAKE_SOURCE_DIR}/cmake/SymLink.cmake)
-
-function(sym_link_python_module)
-  set(_options)
-  set(_one_value_args LIB_NAME MODULE_NAME PLUGIN_NAME)
-  set(_multi_value_args)
-  cmake_parse_arguments(_ARGS "${_options}" "${_one_value_args}"
-                        "${_multi_value_args}" ${ARGN})
-  if(NOT DEFINED _ARGS_LIB_NAME)
-    message(
-      FATAL_ERROR "LIB_NAME must be specified for sym_link_python_module()")
-  endif()
-  set(_lib_name ${_ARGS_LIB_NAME})
-  set(_module_name ${_ARGS_MODULE_NAME})
-  if(NOT DEFINED _ARGS_MODULE_NAME)
-    set(_module_name ${_lib_name}_module)
-  endif()
-  set(_plugin_name ${_ARGS_PLUGIN_NAME})
-  set(_deps ${_lib_name} ${_module_name})
-  if(DEFINED _ARGS_PLUGIN_NAME)
-    list(APPEND _deps ${_plugin_name} copy_${_plugin_name})
-  endif()
-  add_dependencies(${PROJECT_NAME} ${_deps})
-  sym_link_local_lib(${_lib_name})
-  set(_module_suffix cpython-310-x86_64-linux-gnu.so)
-  sym_link_file(
-    SOURCE
-    ${CMAKE_BINARY_DIR}/src/lib_${_lib_name}/${_module_name}.${_module_suffix}
-    DEST
-    ${CMAKE_CURRENT_BINARY_DIR}/${_module_name}.${_module_suffix}
-    INSTALL_DEST
-    ${CMAKE_INSTALL_BINDIR}/)
-  if(DEFINED _ARGS_PLUGIN_NAME)
-    get_target_property(plugins ${_plugin_name} INTERFACE_PYTHON_SCRIPTS_DIR)
-    sym_link_dir(TARGET_NAME ${PROJECT_NAME}_link_${_plugin_name} SOURCE
-                 ${plugins} DEST ${CMAKE_CURRENT_BINARY_DIR}/${_plugin_name})
-  endif()
-endfunction()
@@ -1,9 +0,0 @@
-include_guard(GLOBAL)
-
-macro(set_ternary RESULT CONDITION TRUE_VALUE FALSE_VALUE)
-  if(${CONDITION})
-    set(${RESULT} ${TRUE_VALUE})
-  else()
-    set(${RESULT} ${FALSE_VALUE})
-  endif()
-endmacro()
@@ -1,11 +0,0 @@
-#pragma once
-
-#include <array>
-
-namespace bts::@PROJECT_NAME@::protobufs {
-
-inline std::array<const char *, @PROTO_SOURCES_LENGTH@> config_proto_files = {
-@PROTO_SOURCES_CXX_ARRAY_ITEMS@
-};
-
-} // namespace bts::@PROJECT_NAME@::protobufs
@@ -1,11 +0,0 @@
-#ifndef BTS_SPARK_VERSION_H
-#define BTS_SPARK_VERSION_H
-
-#define BTS_SPARK_VERSION_MAJOR @PROJECT_VERSION_MAJOR@
-#define BTS_SPARK_VERSION_MINOR @PROJECT_VERSION_MINOR@
-#define BTS_SPARK_VERSION_PATCH @PROJECT_VERSION_PATCH@
-#define BTS_SPARK_VERSION_BUILD_METADATA @PROJECT_VERSION_BUILD_METADATA@
-#define BTS_SPARK_VERSION "@PROJECT_VERSION@"
-#define BTS_SPARK_VERSION_FULL "@PROJECT_VERSION_FULL@"
-
-#endif
@@ -0,0 +1,24 @@
+cmake_minimum_required(VERSION 3.5)
+
+# Explicitly set policy to convert relative paths to absolute (although this is a default policy,
+# setting it explicitly prevents a compile-warning)
+cmake_policy(SET CMP0076 NEW)
+
+# add protos to the library to facilitate source_group
+target_sources(libspark PUBLIC ${Config_Protos} ${NonConfig_Protos} ${Service_Protos})
+
+function(assign_source_group)
+  foreach(_source IN ITEMS ${ARGN})
+    if(IS_ABSOLUTE "${_source}")
+      file(RELATIVE_PATH _source_rel "${CMAKE_CURRENT_SOURCE_DIR}" "${_source}")
+    else()
+      set(_source_rel "${_source}")
+    endif()
+    get_filename_component(_source_path "${_source_rel}" PATH)
+    string(REPLACE "/" "\\" _source_path_msvc "${_source_path}")
+    source_group("${_source_path_msvc}" FILES "${_source}")
+    set(SOURCE_FILES "${_source}")
+  endforeach()
+endfunction(assign_source_group)
+
+assign_source_group(${SparkLib_Sources} ${Config_Protos} ${NonConfig_Protos} ${Service_Protos})
@@ -1,221 +0,0 @@
-services:
-  sparkd:
-    volumes:
-      - ${SPARKD__DATA_DIR:-sparkd_data}:/home/bts/.local/share/bts/sparkd/data
-      - ${SPARKD__MD_RECORDING_DIR:-md_recording}:/md_recording
-    build:
-      dockerfile: src/app_sparkd/Dockerfile
-      args:
-        - IMAGE=${SPARKD__IMAGE}
-        - SOURCE_DIR=${SPARKD__SOURCE_DIR}
-        - CONFIG_DIR=${SPARKD__CONFIG_DIR}
-        - PYTHON_REQUIREMENTS=${SPARKD__PYTHON_REQUIREMENTS}
-        - SPARKD_ENTRYPOINT=${SPARKD__SPARKD_ENTRYPOINT}
-    shm_size: "${SPARKD__SHM_SIZE:-512mb}"
-    env_file:
-      - .env
-      - ${SPARKD__CONFIG_DIR}/.env
-    ports:
-      - "${SPARKD__CONFIG_PORT}:${SPARKD__CONFIG_PORT}"
-      - "${SPARKD__QUICKBUS_PORT}:${SPARKD__QUICKBUS_PORT}"
-      - "${SPARKD__SIM_FIX_PORT}:${SPARKD__SIM_FIX_PORT}"
-    entrypoint: ${SPARKD__MAIN_ENTRYPOINT}
-    deploy:
-      resources:
-        limits:
-          memory: "${SPARKD__MEMORY:-4gb}"
-
-  sparkd-shell:
-    volumes:
-      - ${SPARKD__DATA_DIR:-sparkd_data}:/home/bts/.local/share/bts/sparkd/data
-      - ${SPARKD__MD_RECORDING_DIR:-md_recording}:/md_recording
-    build:
-      dockerfile: docker/images/bluetradingsystems/linux_shell/Dockerfile
-      args:
-        - IMAGE=${SPARKD__IMAGE}
-        - SOURCE_DIR=${SPARKD__SOURCE_DIR}
-        - CONFIG_DIR=${SPARKD__CONFIG_DIR}
-        - PYTHON_REQUIREMENTS=${SPARKD__PYTHON_REQUIREMENTS}
-        - SPARKD_ENTRYPOINT=${SPARKD__SPARKD_ENTRYPOINT}
-    shm_size: "${SPARKD__SHM_SIZE:-512mb}"
-    command: "do sleep 1; done"
-    env_file:
-      - .env
-      - ${SPARKD__CONFIG_DIR}/.env
-    ports:
-      - "${SPARKD__CONFIG_PORT}:${SPARKD__CONFIG_PORT}"
-      - "${SPARKD__QUICKBUS_PORT}:${SPARKD__QUICKBUS_PORT}"
-      - "${SPARKD__SIM_FIX_PORT}:${SPARKD__SIM_FIX_PORT}"
-    deploy:
-      resources:
-        limits:
-          memory: "${SPARKD__MEMORY:-4gb}"
-
-  sparkd-symbols:
-    volumes:
-      - ${SPARKD__DATA_DIR:-sparkd_data}:/home/bts/.local/share/bts/sparkd/data
-      - ${SPARKD__MD_RECORDING_DIR:-md_recording}:/md_recording
-      - ${SPARKD__RUNTIME_CONF_DIR:-sparkd_conf}:/home/bts/.local/share/bts/sparkd/conf
-    build:
-      dockerfile: src/app_sparkd/Dockerfile
-      args:
-        - IMAGE=${SPARKD__IMAGE}
-        - SOURCE_DIR=${SPARKD__SOURCE_DIR}
-        - CONFIG_DIR=${SPARKD__CONFIG_DIR}
-        - PYTHON_REQUIREMENTS=${SPARKD__PYTHON_REQUIREMENTS}
-        - SPARKD_ENTRYPOINT=${SPARKD__SPARKD_ENTRYPOINT}
-    shm_size: "${SPARKD__SHM_SIZE:-512mb}"
-    env_file:
-      - .env
-      - ${SPARKD__CONFIG_DIR}/.env
-    ports:
-      - "${SPARKD__CONFIG_PORT}:${SPARKD__CONFIG_PORT}"
-      - "${SPARKD__QUICKBUS_PORT}:${SPARKD__QUICKBUS_PORT}"
-      - "${SPARKD__SIM_FIX_PORT}:${SPARKD__SIM_FIX_PORT}"
-    entrypoint: ${SPARKD__MAIN_ENTRYPOINT}
-    deploy:
-      restart_policy:
-        condition: any
-        delay: 3s
-      resources:
-        limits:
-          memory: "${SPARKD__MEMORY:-4gb}"
-  sparkd-multicast:
-    volumes:
-      - ${SPARKD__DATA_DIR:-sparkd_data}:/home/bts/.local/share/bts/sparkd/data
-      - ${SPARKD__MD_RECORDING_DIR:-md_recording}:/md_recording
-      - ${SPARKD__RUNTIME_CONF_DIR:-sparkd_conf}:/home/bts/.local/share/bts/sparkd/conf
-    build:
-      dockerfile: src/app_sparkd/Dockerfile
-      args:
-        - IMAGE=${SPARKD__IMAGE}
-        - SOURCE_DIR=${SPARKD__SOURCE_DIR}
-        - CONFIG_DIR=${SPARKD__CONFIG_DIR}
-        - PYTHON_REQUIREMENTS=${SPARKD__PYTHON_REQUIREMENTS}
-        - SPARKD_ENTRYPOINT=${SPARKD__SPARKD_ENTRYPOINT}
-    shm_size: "${SPARKD__SHM_SIZE:-2048mb}"
-    env_file:
-      - .env
-      - ${SPARKD__CONFIG_DIR}/.env
-    network_mode: "host"
-    entrypoint: ${SPARKD__MAIN_ENTRYPOINT}
-    deploy:
-      restart_policy:
-        condition: any
-        delay: 3s
-      resources:
-        limits:
-          memory: "${SPARKD__MEMORY:-4gb}"
-  sparkd-tail:
-    image: bluetradingsystems/linux_dotnet8
-    volumes:
-      - type: volume
-        read_only: true
-        source: sparkd_data
-        target: /home/bts/.local/share/bts/sparkd/data/logging.sparkd
-        volume:
-          subpath: logging.sparkd
-    command: ["tail", "-f", "/home/bts/.local/share/bts/sparkd/data/logging.sparkd/log"]
-
-  sparkd-ping-test:
-    depends_on:
-      - sparkd
-    profiles:
-      - ping-test
-    build:
-      context: .
-      dockerfile_inline: |
-        FROM bluetradingsystems/linux_dotnet8
-        USER "root"
-        RUN apt-get update && apt-get -y install iputils-ping
-    command: [ "ping", "sparkd" ]
-
-  pubsub:
-    volumes:
-      - ${PUBSUB__DATA_DIR:-pubsub_data}:/home/bts/.local/share/bts/pubsub/data
-    build:
-      dockerfile: src/DataStreamSuite/PubSubServer/Dockerfile
-      args:
-        - SOURCE_DIR=${PUBSUB__SOURCE_DIR}
-        - CONFIG_DIR=${PUBSUB__CONFIG_DIR}
-    ports:
-      - 22019:22019
-    command: >
-      sh -c "
-        echo bts | sudo -S chown -R bts:bts /home/bts/.local/share/bts/pubsub/data
-        if [ -e "/home/bts/.local/share/bts/pubsub/data/logging.PubSubServer/log" ]; then
-          mv "/home/bts/.local/share/bts/pubsub/data/logging.PubSubServer/log" "/home/bts/.local/share/bts/pubsub/data/logging.PubSubServer/log_$(date '+%Y%m%d-%H%M')"
-        fi
-        if [ -e "/home/bts/.local/share/bts/pubsub/conf/.env" ]; then
-          echo 'Sourcing /home/bts/.local/share/bts/pubsub/conf/.env'
-          set -a
-          . /home/bts/.local/share/bts/pubsub/conf/.env
-          set +a
-        fi
-        if [ -e "/home/bts/.local/share/bts/pubsub/conf/.env.local" ]; then
-          echo 'Sourcing /home/bts/.local/share/bts/pubsub/conf/.env.local'
-          set -a
-          . /home/bts/.local/share/bts/pubsub/conf/.env.local
-          set +a
-        fi
-        ./PubSubServer"
-    env_file:
-      - .env
-      - ${PUBSUB__CONFIG_DIR}/.env
-
-  md-publisher:
-    volumes:
-      - ${MD_PUBLISHER__DATA_DIR:-md_publisher_data}:/home/bts/.local/share/bts/md_publisher/data
-      - historic_md:/home/bts/.local/share/bts/md_publisher/data/databento
-    build:
-      dockerfile: src/DataStreamSuite/DataStreamPublisher/Dockerfile
-      args:
-        - SOURCE_DIR=${MD_PUBLISHER__SOURCE_DIR}
-        - CONFIG_DIR=${MD_PUBLISHER__CONFIG_DIR}
-    command: >
-      sh -c "
-        echo bts | sudo -S chown -R bts:bts /home/bts/.local/share/bts/md_publisher/data
-        if [ -e "/home/bts/.local/share/bts/md_publisher/data/logging.DataStreamPublisher/log" ]; then
-          mv "/home/bts/.local/share/bts/md_publisher/data/logging.DataStreamPublisher/log" "/home/bts/.local/share/bts/md_publisher/data/logging.DataStreamPublisher/log_$(date '+%Y%m%d-%H%M')"
-        fi
-        if [ -e "/home/bts/.local/share/bts/md_publisher/conf/.env" ]; then
-          echo 'Sourcing /home/bts/.local/share/bts/md_publisher/conf/.env'
-          set -a
-          . /home/bts/.local/share/bts/md_publisher/conf/.env
-          set +a
-        fi
-        if [ -e "/home/bts/.local/share/bts/md_publisher/conf/.env.local" ]; then
-          echo 'Sourcing /home/bts/.local/share/bts/md_publisher/conf/.env.local'
-          set -a
-          . /home/bts/.local/share/bts/md_publisher/conf/.env.local
-          set +a
-        fi
-      dockerize -wait tcp://pubsub:22019 -timeout 10s ./DataStreamPublisher"
-    env_file:
-      - .env
-      - ${MD_PUBLISHER__CONFIG_DIR}/.env
-
-  api-server:
-    depends_on:
-      - sparkd
-    ports:
-      - 8008:8008
-      - 9443:9443
-    build:
-      dockerfile: src/client/spark_api_server/Dockerfile
-    command: [ "dockerize", "-wait", "tcp://sparkd:8000", "-timeout", "10s", "./spark_api_server", "run" ]
-    environment:
-      - ASPNETCORE_ENVIRONMENT=Staging
-
-volumes:
-  sparkd_data:
-    name: "sparkd_${SPARKD__CONFIG_PORT:-8000}"
-  pubsub_data:
-    name: "pubsub_22019"
-  md_publisher_data:
-    name: "md_publisher_22019"
-  historic_md:
-    name: "historic_md"
-  md_recording:
-    name: "sparkd_md_recording_${SPARKD__CONFIG_PORT:-8000}"
-    external: true
@@ -124,8 +124,8 @@ service OrderService {
 ```
 ### C++ Example
 ```cpp
-#include "spark/api/public/ServiceContext.h"
-#include "spark/api/services/OrderService.client.pb.h"
+#include "lib/api/public/ServiceContext.h"
+#include "lib/api/services/OrderService.client.pb.h"
 using namespace bts::api;
 ServiceContext ctx;
 auto orders = ctx.locate<orderman::OrderService>();
@@ -29,9 +29,9 @@ namespace sample {
 ```

 ```cpp
-#include "spark/api/public/ServiceContext.h"
-#include "spark/domain_model/Security.h"
-#include "spark/api/services/MarketDataService.client.pb.h"
+#include "lib/api/public/ServiceContext.h"
+#include "spark/lib/domain_model/Security.h"
+#include "lib/api/services/MarketDataService.client.pb.h"
 #include <thread>

 using namespace bts::api;
@@ -1,38 +0,0 @@
-FROM ubuntu:22.04
-
-ARG DEBIAN_FRONTEND=noninteractive
-
-RUN apt-get update && apt-get install -y pkg-config
-RUN apt-get update && apt-get install -y locales
-RUN apt-get update && apt-get install -y ca-certificates
-RUN apt-get update && apt-get install -y libssh2-1-dev
-RUN apt-get update && apt-get install -y software-properties-common
-RUN apt-get update && apt-get install -y sudo
-
-# GCC
-ARG gcc_major=13
-RUN add-apt-repository ppa:ubuntu-toolchain-r/test \
-  && apt-get update \
-  && apt-get install -y g++-$gcc_major
-
-RUN apt-get update \
-  && apt-get install -y dotnet7
-
-RUN locale-gen en_US.UTF-8
-
-ARG docker_user="bts"
-ARG docker_uid="1000"
-ARG docker_pass="bts"
-
-RUN \
-  groupadd -g "$docker_uid" "$docker_user" \
-  && useradd \
-  -m \
-  -u "$docker_uid" \
-  -g "$docker_uid" \
-  -G sudo \
-  --password "$(openssl passwd -1 "$docker_pass")" \
-  "$docker_user"
-
-USER bts
-WORKDIR /home/bts
@@ -1,39 +0,0 @@
-FROM ubuntu:22.04
-
-ARG DEBIAN_FRONTEND=noninteractive
-
-RUN apt-get update && apt-get install -y pkg-config
-RUN apt-get update && apt-get install -y locales
-RUN apt-get update && apt-get install -y ca-certificates
-RUN apt-get update && apt-get install -y libssh2-1-dev
-RUN apt-get update && apt-get install -y software-properties-common
-RUN apt-get update && apt-get install -y sudo
-RUN apt-get update && apt-get install -y tzdata
-
-# GCC
-ARG gcc_major=13
-RUN add-apt-repository ppa:ubuntu-toolchain-r/test \
-  && apt-get update \
-  && apt-get install -y g++-$gcc_major
-
-RUN apt-get update \
-  && apt-get install -y dotnet8
-
-RUN locale-gen en_US.UTF-8
-
-ARG docker_user="bts"
-ARG docker_uid="1000"
-ARG docker_pass="bts"
-
-RUN \
-  groupadd -g "$docker_uid" "$docker_user" \
-  && useradd \
-  -m \
-  -u "$docker_uid" \
-  -g "$docker_uid" \
-  -G sudo \
-  --password "$(openssl passwd -1 "$docker_pass")" \
-  "$docker_user"
-
-USER bts
-WORKDIR /home/bts
@@ -1,11 +0,0 @@
-FROM ubuntu:24.04
-
-ARG DEBIAN_FRONTEND=noninteractive
-
-RUN apt-get update && apt-get install -y \
-  fish \
-  less \
-  vim
-
-USER bts
-WORKDIR /home/bts
@@ -1,42 +1,22 @@
 astroid==2.7.3
 autopep8==1.5.7
-blinker==1.9.0
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 EndProject
 Global
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-		{D7C6B9C7-1058-B1EA-FEE6-34C56B05AEDB} = {827E0CD3-B72D-47B6-A68D-7590B98EB39B}
-		{684863A1-3396-4D31-A731-C0725CF07F4E} = {D7C6B9C7-1058-B1EA-FEE6-34C56B05AEDB}
-		{45292808-4EF3-4D4A-B3F5-B75C42EE5870} = {D7C6B9C7-1058-B1EA-FEE6-34C56B05AEDB}
-		{AA57F8D9-7BD6-4161-881B-AD2CEF9A30F6} = {D7C6B9C7-1058-B1EA-FEE6-34C56B05AEDB}
-		{28A26DF7-5F7A-43A2-A548-B55FEBCC3958} = {D7C6B9C7-1058-B1EA-FEE6-34C56B05AEDB}
-		{7543386A-5EBA-4AF0-9E0F-35657B58557D} = {D7C6B9C7-1058-B1EA-FEE6-34C56B05AEDB}
-		{60E0D592-FFB3-0D0A-C4AA-E88919B48F9D} = {827E0CD3-B72D-47B6-A68D-7590B98EB39B}
-		{C13A5ABD-F739-4BE8-A2FE-511E989A5B43} = {60E0D592-FFB3-0D0A-C4AA-E88919B48F9D}
-		{F7C6F079-67BA-4899-9B43-D3F8C121D264} = {60E0D592-FFB3-0D0A-C4AA-E88919B48F9D}
-		{E60C119D-2919-4E2F-9D39-90DB1A8FF9A7} = {60E0D592-FFB3-0D0A-C4AA-E88919B48F9D}
-		{ECBAA198-EC93-4174-8156-BDA5F5E95042} = {60E0D592-FFB3-0D0A-C4AA-E88919B48F9D}
-		{F54AE5C0-2ECA-4151-82E6-0D7EFE88FF40} = {60E0D592-FFB3-0D0A-C4AA-E88919B48F9D}
-		{A898C6C3-F134-4AF0-AFB3-3834C58CC0D7} = {60E0D592-FFB3-0D0A-C4AA-E88919B48F9D}
-		{1E296FB3-D185-4A95-A1EB-AA5B37B85C60} = {60E0D592-FFB3-0D0A-C4AA-E88919B48F9D}
-		{B6070F41-8759-448B-B56D-A7D15D489569} = {60E0D592-FFB3-0D0A-C4AA-E88919B48F9D}
-		{B2D721AB-920C-4CD6-8DBF-6778A115A449} = {60E0D592-FFB3-0D0A-C4AA-E88919B48F9D}
-		{38EE36C6-892C-4C94-8BB0-1ACB164E1F20} = {60E0D592-FFB3-0D0A-C4AA-E88919B48F9D}
-		{C5A3B5EA-BE9F-76E5-E9B8-8A22B289B295} = {827E0CD3-B72D-47B6-A68D-7590B98EB39B}
-		{42C014A0-00C5-0620-8552-38912E891A7F} = {C5A3B5EA-BE9F-76E5-E9B8-8A22B289B295}
-		{D432F3E9-3D2F-4623-B7B9-CEBA6701FFC3} = {42C014A0-00C5-0620-8552-38912E891A7F}
-		{DD00F5D5-6C2F-4FDA-AE3D-25CF01A9A224} = {C5A3B5EA-BE9F-76E5-E9B8-8A22B289B295}
-		{2B8243FF-60C6-4607-8AAE-7762D29B0A48} = {C5A3B5EA-BE9F-76E5-E9B8-8A22B289B295}
+	GlobalSection(ExtensibilityGlobals) = postSolution
+		SolutionGuid = {422D1620-0166-4C26-9A81-CA8A2EB1AB58}
+	EndGlobalSection
+	GlobalSection(Performance) = preSolution
+		HasPerformanceSessions = true
 	EndGlobalSection
 EndGlobal
@@ -8,6 +8,7 @@
   public int Integer;
   public double Real;
   public string Identifier;
+   public DateTime DateTime; 
   public ImmutableList<IArithmeticExpression> Arguments;
   public ImmutableList<Assignment> Assignments;
   public IArithmeticExpression Argument;
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">

  <PropertyGroup>
-    <TargetFramework>net8.0</TargetFramework>
+    <TargetFramework>net7.0</TargetFramework>
    <ImplicitUsings>enable</ImplicitUsings>
    <Nullable>enable</Nullable>
  </PropertyGroup>
@@ -11,20 +11,10 @@
    <PackageReference Include="YaccLexTools" Version="1.2.2" />
  </ItemGroup>

-  <Choose>
-    <When Condition="'$(UseProjectRefs)' == 'true'">
-      <ItemGroup>
-        <ProjectReference Include="..\ExpressionCore\ExpressionCore.csproj" />
-        <ProjectReference Include="..\..\cs\Bts.Spark.Core\Bts.Spark.Core.csproj" />
-      </ItemGroup>
-    </When>
-    <Otherwise>
-      <ItemGroup>
-        <PackageReference Include="ExpressionCore" Version="$(SparkVersion)" />
-        <PackageReference Include="Bts.Spark.Core" Version="$(SparkVersion)" />
-      </ItemGroup>
-    </Otherwise>
-  </Choose>
+  <ItemGroup>
+    <ProjectReference Include="..\ExpressionCore\ExpressionCore.csproj" />
+    <ProjectReference Include="..\..\client\spark_core\spark_core.csproj" />
+  </ItemGroup>

  <ItemGroup Label="ArithmeticExpression">
    <Scanner Include="ArithmeticExpressionTokens.lex" />
@@ -1,9 +1,13 @@
 <Project Sdk="Microsoft.NET.Sdk">

  <PropertyGroup>
-    <TargetFramework>net8.0</TargetFramework>
+    <TargetFramework>net7.0</TargetFramework>
    <ImplicitUsings>enable</ImplicitUsings>
    <Nullable>enable</Nullable>
  </PropertyGroup>
-  
+
+  <ItemGroup>
+    <ProjectReference Include="..\..\client\spark_core\spark_core.csproj" />
+  </ItemGroup>
+
 </Project>
@@ -1 +0,0 @@
-r=TimeSeriesStream(ReplayFutureLiveBBOStream("ES"))
@@ -1,3 +0,0 @@
-x,y,z,id
-123,1.001,abc,1
-123,1.001,abc,0
@@ -1,3 +0,0 @@
-x,y,z,id
-123,1.001,abc,1
-123,1.001,abc,0
@@ -1,78 +0,0 @@
-id,ts_event,contract,bid_price,bid_size,ask_price,ask_size,timestamp
-76,2026-03-13T05:57:25.177965500Z,ESU5,6363.75,51,6364,63,3/13/2026 5:57:25 AM
-75,2026-03-13T05:57:25.068062900Z,ESU5,6363.75,52,6364,63,3/13/2026 5:57:25 AM
-74,2026-03-13T05:57:24.963428500Z,ESU5,6363.75,56,6364,63,3/13/2026 5:57:24 AM
-73,2026-03-13T05:57:24.781215700Z,ESU5,6363.75,57,6364,63,3/13/2026 5:57:24 AM
-72,2026-03-13T05:57:24.676290100Z,ESU5,6363.75,57,6364,63,3/13/2026 5:57:24 AM
-71,2026-03-13T05:57:24.566898400Z,ESU5,6363.75,56,6364,63,3/13/2026 5:57:24 AM
-70,2026-03-13T05:57:24.430800400Z,ESU5,6363.75,57,6364,63,3/13/2026 5:57:24 AM
-69,2026-03-13T05:57:24.273683400Z,ESU5,6363.75,56,6364,63,3/13/2026 5:57:24 AM
-68,2026-03-13T05:57:24.167656100Z,ESU5,6363.75,56,6364,64,3/13/2026 5:57:24 AM
-67,2026-03-13T05:57:23.995720100Z,ESU5,6363.75,56,6364,65,3/13/2026 5:57:23 AM
-66,2026-03-13T05:57:23.894029100Z,ESU5,6363.75,56,6364,68,3/13/2026 5:57:23 AM
-65,2026-03-13T05:57:23.728897300Z,ESU5,6363.75,56,6364,68,3/13/2026 5:57:23 AM
-64,2026-03-13T05:57:23.614316800Z,ESU5,6363.75,52,6364,68,3/13/2026 5:57:23 AM
-63,2026-03-13T05:57:23.503752700Z,ESU5,6363.75,51,6364,68,3/13/2026 5:57:23 AM
-62,2026-03-13T05:57:23.289108200Z,ESU5,6363.75,50,6364,68,3/13/2026 5:57:23 AM
-61,2026-03-13T05:57:23.155673400Z,ESU5,6363.75,49,6364,68,3/13/2026 5:57:23 AM
-60,2026-03-13T05:57:23.028898400Z,ESU5,6363.75,48,6364,68,3/13/2026 5:57:23 AM
-59,2026-03-13T05:57:22.887132700Z,ESU5,6363.75,46,6364,68,3/13/2026 5:57:22 AM
-58,2026-03-13T05:57:22.676916300Z,ESU5,6363.75,44,6364,68,3/13/2026 5:57:22 AM
-57,2026-03-13T05:57:22.520328000Z,ESU5,6363.75,43,6364,68,3/13/2026 5:57:22 AM
-56,2026-03-13T05:57:22.405244600Z,ESU5,6363.75,43,6364,69,3/13/2026 5:57:22 AM
-55,2026-03-13T05:57:22.294674100Z,ESU5,6363.75,41,6364,69,3/13/2026 5:57:22 AM
-54,2026-03-13T05:57:22.163467900Z,ESU5,6363.75,38,6364,69,3/13/2026 5:57:22 AM
-53,2026-03-13T05:57:21.992443000Z,ESU5,6363.75,38,6364,71,3/13/2026 5:57:21 AM
-52,2026-03-13T05:57:21.872338400Z,ESU5,6363.75,38,6364,71,3/13/2026 5:57:21 AM
-51,2026-03-13T05:57:21.742801800Z,ESU5,6363.75,37,6364,71,3/13/2026 5:57:21 AM
-50,2026-03-13T05:57:21.557711100Z,ESU5,6363.75,37,6364,72,3/13/2026 5:57:21 AM
-49,2026-03-13T05:57:21.434977000Z,ESU5,6363.75,37,6364,73,3/13/2026 5:57:21 AM
-48,2026-03-13T05:57:21.285751600Z,ESU5,6363.75,37,6364,72,3/13/2026 5:57:21 AM
-47,2026-03-13T05:57:21.184392000Z,ESU5,6363.75,37,6364,73,3/13/2026 5:57:21 AM
-46,2026-03-13T05:57:21.076843800Z,ESU5,6363.75,34,6364,73,3/13/2026 5:57:21 AM
-45,2026-03-13T05:57:20.894131800Z,ESU5,6363.75,32,6364,73,3/13/2026 5:57:20 AM
-44,2026-03-13T05:57:20.759550000Z,ESU5,6363.75,30,6364,73,3/13/2026 5:57:20 AM
-43,2026-03-13T05:57:20.641547900Z,ESU5,6363.75,28,6364,73,3/13/2026 5:57:20 AM
-42,2026-03-13T05:57:20.540293200Z,ESU5,6363.75,27,6364,73,3/13/2026 5:57:20 AM
-41,2026-03-13T05:57:20.439034600Z,ESU5,6363.75,27,6364,74,3/13/2026 5:57:20 AM
-40,2026-03-13T05:57:20.337795000Z,ESU5,6363.75,27,6364,73,3/13/2026 5:57:20 AM
-39,2026-03-13T05:57:20.236606600Z,ESU5,6363.75,27,6364,72,3/13/2026 5:57:20 AM
-38,2026-03-13T05:57:20.135417700Z,ESU5,6363.75,30,6364,72,3/13/2026 5:57:20 AM
-37,2026-03-13T05:57:20.034272700Z,ESU5,6363.75,32,6364,72,3/13/2026 5:57:20 AM
-36,2026-03-13T05:57:19.933096800Z,ESU5,6363.75,34,6364,72,3/13/2026 5:57:19 AM
-35,2026-03-13T05:57:19.832012600Z,ESU5,6363.75,36,6364,72,3/13/2026 5:57:19 AM
-34,2026-03-13T05:57:19.730878500Z,ESU5,6363.75,38,6364,72,3/13/2026 5:57:19 AM
-33,2026-03-13T05:57:19.629787400Z,ESU5,6363.75,38,6364,71,3/13/2026 5:57:19 AM
-32,2026-03-13T05:57:19.528697000Z,ESU5,6363.75,38,6364,70,3/13/2026 5:57:19 AM
-31,2026-03-13T05:57:19.427077000Z,ESU5,6363.75,38,6364,71,3/13/2026 5:57:19 AM
-30,2026-03-13T05:57:19.326450300Z,ESU5,6363.75,39,6364,71,3/13/2026 5:57:19 AM
-29,2026-03-13T05:57:19.225427900Z,ESU5,6363.75,39,6364,70,3/13/2026 5:57:19 AM
-28,2026-03-13T05:57:19.123339800Z,ESU5,6363.75,40,6364,70,3/13/2026 5:57:19 AM
-27,2026-03-13T05:57:19.021936500Z,ESU5,6363.75,41,6364,70,3/13/2026 5:57:19 AM
-26,2026-03-13T05:57:18.920859200Z,ESU5,6363.75,45,6364,70,3/13/2026 5:57:18 AM
-25,2026-03-13T05:57:18.820148400Z,ESU5,6363.75,46,6364,70,3/13/2026 5:57:18 AM
-24,2026-03-13T05:57:18.718988100Z,ESU5,6363.75,46,6364,69,3/13/2026 5:57:18 AM
-23,2026-03-13T05:57:18.618299700Z,ESU5,6363.75,49,6364,69,3/13/2026 5:57:18 AM
-22,2026-03-13T05:57:18.517138100Z,ESU5,6363.75,52,6364,69,3/13/2026 5:57:18 AM
-21,2026-03-13T05:57:18.416335200Z,ESU5,6363.75,53,6364,69,3/13/2026 5:57:18 AM
-20,2026-03-13T05:57:18.315335900Z,ESU5,6363.75,55,6364,69,3/13/2026 5:57:18 AM
-19,2026-03-13T05:57:18.214368600Z,ESU5,6363.75,57,6364,69,3/13/2026 5:57:18 AM
-18,2026-03-13T05:57:18.113754700Z,ESU5,6363.75,57,6364,65,3/13/2026 5:57:18 AM
-17,2026-03-13T05:57:18.012706500Z,ESU5,6363.75,56,6364,65,3/13/2026 5:57:18 AM
-16,2026-03-13T05:57:17.911672600Z,ESU5,6363.75,54,6364,65,3/13/2026 5:57:17 AM
-15,2026-03-13T05:57:17.810879900Z,ESU5,6363.75,52,6364,65,3/13/2026 5:57:17 AM
-14,2026-03-13T05:57:17.710089700Z,ESU5,6363.75,49,6364,65,3/13/2026 5:57:17 AM
-13,2026-03-13T05:57:17.609388300Z,ESU5,6363.75,49,6364,67,3/13/2026 5:57:17 AM
-12,2026-03-13T05:57:17.508697400Z,ESU5,6363.75,49,6364,67,3/13/2026 5:57:17 AM
-11,2026-03-13T05:57:17.408027000Z,ESU5,6363.75,53,6364,67,3/13/2026 5:57:17 AM
-10,2026-03-13T05:57:17.307406200Z,ESU5,6363.75,49,6364,67,3/13/2026 5:57:17 AM
-9,2026-03-13T05:57:17.206714300Z,ESU5,6363.75,49,6364,71,3/13/2026 5:57:17 AM
-8,2026-03-13T05:57:17.105530300Z,ESU5,6363.75,48,6364,71,3/13/2026 5:57:17 AM
-7,2026-03-13T05:57:17.004796800Z,ESU5,6363.75,47,6364,71,3/13/2026 5:57:17 AM
-6,2026-03-13T05:57:16.904113900Z,ESU5,6363.75,46,6364,71,3/13/2026 5:57:16 AM
-5,2026-03-13T05:57:16.803381900Z,ESU5,6363.75,43,6364,71,3/13/2026 5:57:16 AM
-4,2026-03-13T05:57:16.701969600Z,ESU5,6363.75,43,6364,72,3/13/2026 5:57:16 AM
-3,2026-03-13T05:57:16.600765600Z,ESU5,6363.75,43,6364,73,3/13/2026 5:57:16 AM
-2,2026-03-13T05:57:16.499986300Z,ESU5,6363.75,43,6364,74,3/13/2026 5:57:16 AM
-1,2026-03-13T05:57:16.399241700Z,ESU5,6363.75,43,6364,75,3/13/2026 5:57:16 AM
-0,2026-03-13T05:57:16.264038000Z,ESU5,6363.75,43,6364,76,3/13/2026 5:57:16 AM
@@ -1,91 +0,0 @@
-id,ts_event,contract,bid_price,bid_size,ask_price,ask_size,timestamp
-89,2026-03-13T05:57:26.904401600Z,ESU5,6363.75,43,6364,67,3/13/2026 5:57:26 AM
-88,2026-03-13T05:57:26.778037200Z,ESU5,6363.75,43,6364,69,3/13/2026 5:57:26 AM
-87,2026-03-13T05:57:26.597038500Z,ESU5,6363.75,43,6364,69,3/13/2026 5:57:26 AM
-86,2026-03-13T05:57:26.438768300Z,ESU5,6363.75,43,6364,68,3/13/2026 5:57:26 AM
-85,2026-03-13T05:57:26.328259100Z,ESU5,6363.75,43,6364,67,3/13/2026 5:57:26 AM
-84,2026-03-13T05:57:26.216211200Z,ESU5,6363.75,44,6364,67,3/13/2026 5:57:26 AM
-83,2026-03-13T05:57:26.099281200Z,ESU5,6363.75,46,6364,67,3/13/2026 5:57:26 AM
-82,2026-03-13T05:57:25.979814900Z,ESU5,6363.75,48,6364,67,3/13/2026 5:57:25 AM
-81,2026-03-13T05:57:25.852317700Z,ESU5,6363.75,48,6364,66,3/13/2026 5:57:25 AM
-80,2026-03-13T05:57:25.684323100Z,ESU5,6363.75,48,6364,65,3/13/2026 5:57:25 AM
-79,2026-03-13T05:57:25.539436900Z,ESU5,6363.75,48,6364,64,3/13/2026 5:57:25 AM
-78,2026-03-13T05:57:25.425439200Z,ESU5,6363.75,49,6364,64,3/13/2026 5:57:25 AM
-77,2026-03-13T05:57:25.298054100Z,ESU5,6363.75,51,6364,64,3/13/2026 5:57:25 AM
-76,2026-03-13T05:57:25.177965500Z,ESU5,6363.75,51,6364,63,3/13/2026 5:57:25 AM
-75,2026-03-13T05:57:25.068062900Z,ESU5,6363.75,52,6364,63,3/13/2026 5:57:25 AM
-74,2026-03-13T05:57:24.963428500Z,ESU5,6363.75,56,6364,63,3/13/2026 5:57:24 AM
-73,2026-03-13T05:57:24.781215700Z,ESU5,6363.75,57,6364,63,3/13/2026 5:57:24 AM
-72,2026-03-13T05:57:24.676290100Z,ESU5,6363.75,57,6364,63,3/13/2026 5:57:24 AM
-71,2026-03-13T05:57:24.566898400Z,ESU5,6363.75,56,6364,63,3/13/2026 5:57:24 AM
-70,2026-03-13T05:57:24.430800400Z,ESU5,6363.75,57,6364,63,3/13/2026 5:57:24 AM
-69,2026-03-13T05:57:24.273683400Z,ESU5,6363.75,56,6364,63,3/13/2026 5:57:24 AM
-68,2026-03-13T05:57:24.167656100Z,ESU5,6363.75,56,6364,64,3/13/2026 5:57:24 AM
-67,2026-03-13T05:57:23.995720100Z,ESU5,6363.75,56,6364,65,3/13/2026 5:57:23 AM
-66,2026-03-13T05:57:23.894029100Z,ESU5,6363.75,56,6364,68,3/13/2026 5:57:23 AM
-65,2026-03-13T05:57:23.728897300Z,ESU5,6363.75,56,6364,68,3/13/2026 5:57:23 AM
-64,2026-03-13T05:57:23.614316800Z,ESU5,6363.75,52,6364,68,3/13/2026 5:57:23 AM
-63,2026-03-13T05:57:23.503752700Z,ESU5,6363.75,51,6364,68,3/13/2026 5:57:23 AM
-62,2026-03-13T05:57:23.289108200Z,ESU5,6363.75,50,6364,68,3/13/2026 5:57:23 AM
-61,2026-03-13T05:57:23.155673400Z,ESU5,6363.75,49,6364,68,3/13/2026 5:57:23 AM
-60,2026-03-13T05:57:23.028898400Z,ESU5,6363.75,48,6364,68,3/13/2026 5:57:23 AM
-59,2026-03-13T05:57:22.887132700Z,ESU5,6363.75,46,6364,68,3/13/2026 5:57:22 AM
-58,2026-03-13T05:57:22.676916300Z,ESU5,6363.75,44,6364,68,3/13/2026 5:57:22 AM
-57,2026-03-13T05:57:22.520328000Z,ESU5,6363.75,43,6364,68,3/13/2026 5:57:22 AM
-56,2026-03-13T05:57:22.405244600Z,ESU5,6363.75,43,6364,69,3/13/2026 5:57:22 AM
-55,2026-03-13T05:57:22.294674100Z,ESU5,6363.75,41,6364,69,3/13/2026 5:57:22 AM
-54,2026-03-13T05:57:22.163467900Z,ESU5,6363.75,38,6364,69,3/13/2026 5:57:22 AM
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@@ -1,187 +0,0 @@
-from __future__ import annotations
-
-from dataclasses import dataclass
-import json
-import os
-import subprocess
-import threading
-from typing import Any, Callable, Dict, List, Optional
-
-
-@dataclass
-class DataPacket:
-    state: List[Any]
-    deleted_ids: List[int]
-    added_ids: List[int]
-
-
-@dataclass
-class DslResponse:
-    data_packet: DataPacket | None
-    req_id: str | None
-    error: str | None
-
-
-def _resolve_interop_exe() -> str:
-    env_path = os.environ.get("BLUEORB_DSL_INTEROP")
-    if env_path and os.path.isfile(env_path):
-        return env_path
-    candidates = [
-        "/workspaces/spark/build/Debug/bin/net8.0/BlueOrbDSLInteropServer",
-        "/workspaces/spark/build/Release/bin/net8.0/BlueOrbDSLInteropServer",
-    ]
-    for path in candidates:
-        if os.path.isfile(path):
-            return path
-    raise FileNotFoundError(
-        "BlueOrbDSLInterop executable not found. "
-        "Set BLUEORB_DSL_INTEROP to the full path."
-    )
-
-_interop_proc: Optional[subprocess.Popen] = None
-_reader_thread: Optional[threading.Thread] = None
-_callbacks: Dict[str, Callable[[DslResponse], None]] = {}
-_first_response_events: Dict[str, threading.Event] = {}
-_first_responses: Dict[str, DslResponse] = {}
-_state_lock = threading.Lock()
-
-
-def start_interop() -> None:
-    """
-    Start the BlueOrbDSLInteropServer process if it's not already running.
-    """
-    global _interop_proc
-    if _interop_proc is not None and _interop_proc.poll() is None:
-        return
-    exe = _resolve_interop_exe()
-    _interop_proc = subprocess.Popen(
-        [exe],
-        stdin=subprocess.PIPE,
-        stdout=subprocess.PIPE,
-        stderr=subprocess.PIPE,
-        text=True,
-    )
-    _start_reader_thread()
-
-
-def stop_interop() -> None:
-    """
-    Stop the BlueOrbDSLInteropServer process if it's running.
-    """
-    global _interop_proc
-    if _interop_proc is None:
-        return
-    if _interop_proc.poll() is None and _interop_proc.stdin is not None:
-        _interop_proc.stdin.write(":exit\n")
-        _interop_proc.stdin.flush()
-        _interop_proc.stdin.close()
-        _interop_proc.wait(timeout=5)
-    global _reader_thread
-    if _reader_thread is not None:
-        _reader_thread.join(timeout=1)
-        _reader_thread = None
-    with _state_lock:
-        _callbacks.clear()
-        _first_response_events.clear()
-        _first_responses.clear()
-    _interop_proc = None
-
-
-def get_interop_status() -> tuple[bool, int | None]:
-    """
-    Returns current interop process status as (is_running, exit_code).
-    exit_code is None when process was never started or is still running.
-    """
-    proc = _interop_proc
-    if proc is None:
-        return (False, None)
-    rc = proc.poll()
-    return (rc is None, rc)
-
-
-def get_dsl(dsl: str, req_id: str, callback: Callable[[DslResponse], None]) -> DslResponse:
-    """
-    Sends the DSL to BlueOrbDSLInteropServer and returns the first response for this req_id.
-    Subsequent streaming updates for the same req_id are delivered via callback.
-    Requires start_interop() to be called first.
-    """
-    assert _interop_proc is not None and _interop_proc.poll() is None, (
-        "Interop process is not running. Call start_interop() first."
-    )
-    assert _interop_proc.stdin is not None
-
-    payload = {"dsl": dsl, "req_id": req_id}
-    first_event = threading.Event()
-    with _state_lock:
-        _callbacks[req_id] = callback
-        _first_response_events[req_id] = first_event
-        _first_responses.pop(req_id, None)
-
-    _interop_proc.stdin.write(json.dumps(payload) + "\n")
-    _interop_proc.stdin.flush()
-
-    if not first_event.wait(timeout=10):
-        with _state_lock:
-            _first_response_events.pop(req_id, None)
-            _callbacks.pop(req_id, None)
-        raise TimeoutError(f"No response received for req_id '{req_id}' from BlueOrbDSLInterop.")
-
-    with _state_lock:
-        response = _first_responses.pop(req_id, None)
-        _first_response_events.pop(req_id, None)
-    if response is None:
-        raise RuntimeError(f"Missing first response for req_id '{req_id}'.")
-    return response
-
-
-def _start_reader_thread() -> None:
-    global _reader_thread
-    if _reader_thread is not None and _reader_thread.is_alive():
-        return
-    _reader_thread = threading.Thread(target=_reader_loop, daemon=True)
-    _reader_thread.start()
-
-
-def _reader_loop() -> None:
-    while True:
-        proc = _interop_proc
-        if proc is None or proc.poll() is not None:
-            return
-        assert proc.stdout is not None
-        raw = proc.stdout.readline()
-        if raw == "":
-            return
-
-        line = raw.strip()
-        if not line:
-            continue
-
-        try:
-            payload = json.loads(line)
-        except json.JSONDecodeError:
-            continue
-
-        response = DslResponse(
-            data_packet=DataPacket(state=[payload.get("data_packet")], deleted_ids=[], added_ids=[]),
-            req_id=payload.get("req_id"),
-            error=payload.get("error"),
-        )
-        req_id = response.req_id
-        if not req_id:
-            continue
-
-        callback: Optional[Callable[[DslResponse], None]]
-        event: Optional[threading.Event]
-        with _state_lock:
-            callback = _callbacks.get(req_id)
-            event = _first_response_events.get(req_id)
-            if event is not None and req_id not in _first_responses:
-                _first_responses[req_id] = response
-                event.set()
-
-        if callback is not None:
-            try:
-                callback(response)
-            except Exception:
-                # Keep the reader alive if callback logic fails.
-                pass
@@ -1,33 +0,0 @@
-import os
-import sys
-import uuid
-
-_here = os.path.dirname(os.path.abspath(__file__))
-_parent = os.path.dirname(_here)
-if _parent not in sys.path:
-    sys.path.insert(0, _parent)
-
-from BlueOrbDSL import get_dsl, start_interop, stop_interop, DslResponse
-
-
-def on_packet(response: DslResponse) -> None:
-    print("callback from DSL Server, DslResponse:", response)
-
-
-def main() -> None:
-    start_interop()
-    try:
-        while True:
-            dsl = input("Enter DSL (or 'quit'): ").strip()
-            if dsl.lower() == "quit":
-                break
-            if not dsl:
-                continue
-            response = get_dsl(dsl, str(uuid.uuid4()), on_packet)
-            print("return:", response)
-    finally:
-        stop_interop()
-
-
-if __name__ == "__main__":
-    main()
@@ -1,844 +0,0 @@
-from __future__ import annotations
-
-import csv
-import time
-import os
-import sys
-import threading
-import uuid
-from collections import deque
-from datetime import datetime
-from typing import Any
-
-from rich.text import Text
-from rich.style import Style
-from textual import events
-from textual.app import App, ComposeResult
-from textual.binding import Binding
-from textual.containers import Container, Horizontal, Vertical
-from textual.widgets.text_area import TextAreaTheme
-from textual.widgets import Button, DataTable, Input, Static, TabbedContent, TabPane, TextArea, Tree
-
-_here = os.path.dirname(os.path.abspath(__file__))
-_parent = os.path.dirname(_here)
-if _parent not in sys.path:
-    sys.path.insert(0, _parent)
-
-from BlueOrbDSL import DslResponse, get_dsl, get_interop_status, start_interop, stop_interop
-
-
-class DSQALiveConsole(App):
-    DEFAULT_QUERY = (
-        'FROM market.ticks\n'
-        'WHERE symbol IN ("BTCUSD", "ETHUSD")\n'
-        "SELECT symbol, price, change, time"
-    )
-    LAST_QUERY_PATH = os.path.join(_here, "DSQA_LAST_EXECUTED_QUERY.txt")
-    DSL_HIGHLIGHT_QUERY = r"""
-    ; comments
-    (comment) @comment
-
-    ; assignment vars: lhs in x = SomeStream(...)
-    (assignment_expression
-      left: (identifier) @variable)
-
-    ; stream operators (function names ending with Stream)
-    (call_expression
-      function: (identifier) @function
-      (#match? @function "^[A-Za-z_][A-Za-z0-9_]*Stream$"))
-
-    ; normal function calls
-    (call_expression
-      function: (identifier) @function.method)
-
-    ; arguments and literals
-    (arguments (identifier) @parameter)
-    (string) @string
-    (number) @number
-    (true) @constant.builtin
-    (false) @constant.builtin
-    (null) @constant.builtin
-    """
-
-    BINDINGS = [
-        Binding("ctrl+r", "execute", "Execute"),
-        Binding("f11", "execute", show=False),
-        Binding("alt+enter", "execute", show=False),
-        # Override Textual's default Ctrl+Q quit to avoid accidental VS Code close.
-        Binding("ctrl+q", "noop", show=False),
-        Binding("ctrl+x", "quit", "Quit"),
-    ]
-    CSS = """
-    Screen {
-        background: #060a1c;
-        color: #d8dff4;
-    }
-
-    #window_close_button {
-        width: 3;
-        min-width: 3;
-        height: 1;
-        margin: 0;
-        border: none;
-        background: #3a1015;
-        color: #ff9ca8;
-        text-style: bold;
-    }
-
-    #window_close_button:hover,
-    #window_close_button:focus {
-        background: #5a1620;
-        color: #ffd6db;
-    }
-
-    #root {
-        padding: 0 1 0 1;
-        height: 1fr;
-    }
-
-    #query_panel {
-        background: #070d27;
-        height: 33%;
-        margin-top: 1;
-    }
-
-    #query_header_row {
-        height: 1;
-        border-bottom: solid #596285;
-    }
-
-    #query_header {
-        width: auto;
-        color: #9eb0d4;
-        content-align: left middle;
-    }
-
-    #query_header_spacer {
-        width: 1fr;
-    }
-
-    #query_input {
-        border: solid #697597;
-        background: #050b22;
-        color: #cfd7eb;
-        height: 1fr;
-        padding-left: 1;
-    }
-
-    #results_panel {
-        background: #070d27;
-        height: 1fr;
-        margin-top: 1;
-    }
-
-    #results_toolbar {
-        height: 3;
-        padding: 0 1;
-    }
-
-    #results_left {
-        width: auto;
-        height: 3;
-        margin-top: 0;
-    }
-
-    #stream_toggle_button {
-        width: auto;
-        min-width: 11;
-        margin-top: 0;
-        margin-left: 1;
-        border: none;
-        background: #070d27;
-        color: #79afe7;
-    }
-
-    #stream_toggle_button:hover,
-    #stream_toggle_button:focus {
-        background: #111a3f;
-        color: #9bc9f6;
-    }
-
-    #execute_button {
-        width: 5;
-        min-width: 5;
-        margin-top: 0;
-        margin-left: 1;
-        border: none;
-        background: #10341f;
-        color: #7ef1ac;
-        text-style: bold;
-    }
-
-    #execute_button:hover,
-    #execute_button:focus {
-        background: #1a4f30;
-        color: #b3ffd0;
-    }
-
-    #results_actions {
-        width: auto;
-        height: 3;
-        margin-top: 0;
-    }
-
-    #results_spacer {
-        width: 1fr;
-    }
-
-    #results_search {
-        width: 30;
-        min-width: 24;
-        margin-right: 1;
-        border: none;
-        background: #060d28;
-        color: #d5def3;
-        padding: 0 1;
-    }
-
-    #search_button,
-    #copy_button,
-    #export_button {
-        width: auto;
-        min-width: 11;
-        margin-left: 1;
-        border: none;
-        background: #070d27;
-        color: #79afe7;
-    }
-
-    #search_button:hover,
-    #copy_button:hover,
-    #export_button:hover,
-    #search_button:focus,
-    #copy_button:focus,
-    #export_button:focus {
-        background: #111a3f;
-        color: #9bc9f6;
-    }
-
-    #results_table {
-        border: solid #697597;
-        background: #050b22;
-        height: 1fr;
-    }
-
-    #results_table .datatable--header,
-    #results_table .datatable--header-hover,
-    #results_table .datatable--header-cursor {
-        background: #0c1535;
-        color: #6ea6df;
-        text-style: bold;
-    }
-
-    #results_table .datatable--even-row {
-        background: #050b22;
-    }
-
-    #results_table .datatable--odd-row {
-        background: #07102a;
-    }
-
-    #results_table .datatable--cursor {
-        background: #19335b;
-        color: #dbe8ff;
-    }
-
-    #results_table .datatable--fixed-cursor {
-        background: #132949;
-        color: #c8dbff;
-    }
-
-    #results_table.error .datatable--odd-row,
-    #results_table.error .datatable--even-row,
-    #results_table.error .datatable--cursor,
-    #results_table.error .datatable--fixed-cursor {
-        color: #f17486;
-        text-style: bold;
-    }
-
-    #results_panel.paused {
-        background: #150f1f;
-    }
-
-    #results_table.paused {
-        background: #130f18;
-    }
-
-    #results_table.paused .datatable--header,
-    #results_table.paused .datatable--header-hover,
-    #results_table.paused .datatable--header-cursor {
-        background: #262338;
-        color: #8b90a1;
-        text-style: bold;
-    }
-
-    #results_tabs {
-        height: 1fr;
-        background: #070d27;
-    }
-
-    #data_tab,
-    #tree_tab {
-        padding: 0;
-    }
-
-    #ops_tree {
-        border: solid #697597;
-        background: #050b22;
-        color: #cfd7eb;
-        height: 1fr;
-    }
-
-    #bottom_status_bar {
-        border-top: solid #596285;
-        background: #070d27;
-        height: 2;
-        margin: 0;
-        padding: 0 1;
-    }
-
-    #status_right_wrap {
-        width: 1fr;
-    }
-
-    #status_row {
-        height: 1;
-        margin-top: 0;
-        width: 1fr;
-    }
-
-    #live_status {
-        width: 1fr;
-        color: #b3bed9;
-        content-align: right middle;
-    }
-    """
-
-    def compose(self) -> ComposeResult:
-        with Container(id="root"):
-            with Vertical(id="query_panel"):
-                with Horizontal(id="query_header_row"):
-                    yield Static("DSL Query", id="query_header")
-                    yield Static("", id="query_header_spacer")
-                    yield Button("✕", id="window_close_button")
-                yield TextArea(
-                    text=self._load_last_query(),
-                    id="query_input",
-                    language="javascript",
-                    theme="vscode_dark",
-                    show_line_numbers=True,
-                )
-            with Vertical(id="results_panel"):
-                with Horizontal(id="results_toolbar"):
-                    with Horizontal(id="results_left"):
-                        yield Button("▶", id="execute_button")
-                        yield Button("⏸ Pause", id="stream_toggle_button")
-                    yield Static("", id="results_spacer")
-                    with Horizontal(id="results_actions"):
-                        yield Input(placeholder="Search: col:value", id="results_search")
-                        yield Button("⌕ Search", id="search_button")
-                        yield Button("⧉ Copy", id="copy_button")
-                        yield Button("⇩ Export", id="export_button")
-                with TabbedContent(initial="data_tab", id="results_tabs"):
-                    with TabPane("Data", id="data_tab"):
-                        table = DataTable(id="results_table")
-                        table.cursor_type = "cell"
-                        table.show_cursor = True
-                        table.zebra_stripes = True
-                        yield table
-                    with TabPane("Operators", id="tree_tab"):
-                        tree = Tree("Assemblies", id="ops_tree")
-                        tree.show_root = False
-                        yield tree
-        with Horizontal(id="bottom_status_bar"):
-            with Horizontal(id="status_right_wrap"):
-                with Horizontal(id="status_row"):
-                    yield Static(
-                        "Rows: 0 | Rate: 0.0/s | Total Updates: 0 | Uptime: 00:00:00 | Last Update: --:--:--",
-                        id="live_status",
-                    )
-
-    def on_mount(self) -> None:
-        self._update_timestamps: deque[float] = deque()
-        self._last_update_at: datetime | None = None
-        self._stream_started_at: float | None = None
-        self._total_updates = 0
-        self._last_row_count = 0
-        self._current_col_names: list[str] = []
-        self._current_rows: list[dict[str, Any]] = []
-        self._column_width_cache: dict[str, int] = {}
-        self._ops_catalog_rows: list[dict[str, Any]] = []
-        self._ops_catalog_error: str | None = None
-        self._ops_catalog_loaded = False
-        self._ops_catalog_loading = False
-        self._interop_is_running = False
-        self._interop_exit_code: int | None = None
-        self._grid_updates_enabled = True
-        self._paused_latest_response: DslResponse | None = None
-        self._ensure_interop_started()
-        self._refresh_ops_tree()
-        self._refresh_ops_tree_async()
-        self._configure_query_highlighting()
-        self._set_pause_visuals()
-        self.set_interval(0.5, self._refresh_status)
-
-    def _configure_query_highlighting(self) -> None:
-        query_input = self.query_one("#query_input", TextArea)
-        query_input.language = "javascript"
-        dsl_theme = TextAreaTheme(
-            "dsqa_ide",
-            base_style=Style.parse("#d7deee on #171a22"),
-            gutter_style=Style.parse("#8a93a8 on #1c212b"),
-            cursor_style=Style.parse("#ffffff on #2b3242"),
-            cursor_line_style=Style.parse("on #202534"),
-            cursor_line_gutter_style=Style.parse("#a6afc4 on #202534"),
-            selection_style=Style.parse("on #2a3f67"),
-            bracket_matching_style=Style.parse("bold #7fd9ff"),
-            syntax_styles={
-                "comment": Style.parse("italic #6f778a"),
-                "variable": Style.parse("bold #4ec9b0"),
-                "function": Style.parse("bold #4fc1ff"),
-                "function.method": Style.parse("bold #70d4ff"),
-                "parameter": Style.parse("#c6d4f8"),
-                "string": Style.parse("#d7ba7d"),
-                "number": Style.parse("#b5cea8"),
-                "constant.builtin": Style.parse("bold #569cd6"),
-            },
-        )
-        query_input.register_theme(dsl_theme)
-        query_input.theme = "dsqa_ide"
-        try:
-            query_input.update_highlight_query(self.DSL_HIGHLIGHT_QUERY)
-        except Exception:
-            pass
-
-    def on_shutdown(self) -> None:
-        stop_interop()
-
-    @staticmethod
-    def _ensure_interop_started() -> None:
-        try:
-            start_interop()
-        except Exception:
-            pass
-
-    def action_execute(self) -> None:
-        tabs = self.query_one("#results_tabs", TabbedContent)
-        tabs.active = "data_tab"
-        self._grid_updates_enabled = True
-        self._set_stream_toggle_label()
-        self._set_pause_visuals()
-        self._execute_query_async()
-
-    def action_noop(self) -> None:
-        pass
-
-    def on_button_pressed(self, event: Button.Pressed) -> None:
-        button_id = event.button.id
-        if button_id == "search_button":
-            self._search_results()
-        elif button_id == "copy_button":
-            self._copy_selected_cell()
-        elif button_id == "export_button":
-            self._export_results_csv()
-        elif button_id == "execute_button":
-            self.action_execute()
-        elif button_id == "window_close_button":
-            self.exit()
-        elif button_id == "stream_toggle_button":
-            self._toggle_stream_painting()
-
-    def on_input_submitted(self, event: Input.Submitted) -> None:
-        if event.input.id == "results_search":
-            self._search_results()
-
-    def on_click(self, event: events.Click) -> None:
-        if getattr(event.widget, "id", None) != "ops_tree":
-            return
-        line = event.style.meta.get("line")
-        if line is None:
-            return
-        tree = self.query_one("#ops_tree", Tree)
-        node = tree.get_node_at_line(line)
-        if node is None:
-            return
-        node_data = node.data
-        if not isinstance(node_data, dict) or node_data.get("kind") != "constructor":
-            return
-        self._append_operator_to_query(self._stringify(node_data.get("op", "")).strip())
-
-    def _append_operator_to_query(self, op_name: str) -> None:
-        if not op_name:
-            return
-        query_input = self.query_one("#query_input", TextArea)
-        existing = query_input.text
-        if existing.strip():
-            separator = "" if existing.endswith("\n") else "\n"
-            query_input.text = f"{existing}{separator}{op_name}"
-        else:
-            query_input.text = op_name
-        query_input.focus()
-
-    def _execute_query_async(self) -> None:
-        self._ensure_interop_started()
-        query = self.query_one(TextArea).text.strip()
-        if not query:
-            return
-        self._column_width_cache.clear()
-        self._save_last_query(query)
-        self._update_timestamps.clear()
-        self._last_update_at = None
-        self._stream_started_at = time.monotonic()
-        self._total_updates = 0
-        self._last_row_count = 0
-        self._paused_latest_response = None
-        self._refresh_status()
-
-        req_id = str(uuid.uuid4())
-
-        def _run() -> None:
-            try:
-                def _on_response(resp: DslResponse) -> None:
-                    self.call_from_thread(self._render_response, resp)
-
-                get_dsl(query, req_id, _on_response)
-            except Exception as exc:
-                error_resp = DslResponse(data_packet=None, req_id=req_id, error=str(exc))
-                self.call_from_thread(self._render_response, error_resp)
-
-        threading.Thread(target=_run, daemon=True).start()
-
-    def _render_response(self, response: DslResponse) -> None:
-        if not self._grid_updates_enabled:
-            self._paused_latest_response = response
-            return
-        self._render_response_internal(response)
-
-    def _render_response_internal(self, response: DslResponse) -> None:
-        self._record_update()
-        table = self.query_one(DataTable)
-        table.remove_class("error")
-        prev_scroll_x = table.scroll_offset.x
-        prev_scroll_y = table.scroll_offset.y
-        table.clear(columns=True)
-
-        if response.error:
-            table.add_class("error")
-            error_text = self._stringify(response.error)
-            error_lines = error_text.splitlines() or [error_text]
-            self._current_col_names = []
-            self._current_rows = []
-            self._last_row_count = len(error_lines)
-            self._refresh_ops_tree()
-            table.add_columns("error")
-            for line in error_lines:
-                table.add_row(Text(line, style="bold #f17486"))
-            return
-
-        if response.data_packet is None or not response.data_packet.state:
-            self._current_col_names = []
-            self._current_rows = []
-            self._last_row_count = 0
-            self._refresh_ops_tree()
-            table.add_columns("empty")
-            table.add_row("no data")
-            return
-
-        data_packet = response.data_packet.state[0]
-        columns = data_packet.get("columns", [])
-        rows = data_packet.get("all", [])
-        if not isinstance(rows, list):
-            rows = []
-
-        col_names = [c.get("name", "") for c in columns]
-        if not col_names:
-            col_names = list(rows[0].keys()) if rows else ["empty"]
-
-        self._current_col_names = col_names
-        self._current_rows = rows
-        self._last_row_count = len(rows)
-        self._refresh_ops_tree()
-        for col_name in col_names:
-            width = self._column_width_cache.get(col_name, len(col_name))
-            for row in rows:
-                if not isinstance(row, dict):
-                    continue
-                cell_text = self._stringify(row.get(col_name, ""))
-                width = max(width, len(cell_text))
-            self._column_width_cache[col_name] = width
-            table.add_column(col_name, width=width)
-        for row in rows:
-            table.add_row(*[self._format_cell(c, row.get(c, "")) for c in col_names])
-        # Preserve user's viewport during streaming refreshes.
-        table.scroll_to(
-            x=min(prev_scroll_x, table.max_scroll_x),
-            y=min(prev_scroll_y, table.max_scroll_y),
-            animate=False,
-        )
-
-    @staticmethod
-    def _stringify(value: Any) -> str:
-        return "" if value is None else str(value)
-
-    @staticmethod
-    def _format_cell(column_name: str, value: Any) -> str | Text:
-        text = DSQALiveConsole._stringify(value)
-        lowered = column_name.lower()
-        if lowered == "id":
-            return Text(text, style="bold #9eb1d8")
-        if lowered == "symbol":
-            return Text(text, style="bold #dce6ff")
-        if lowered == "price":
-            return Text(text, style="bold #d4ddf2")
-        if lowered == "time":
-            return Text(text, style="#aab5d0")
-        if lowered == "change":
-            cleaned = text.strip()
-            if cleaned.startswith("-"):
-                return Text(text, style="bold #f17486")
-            if cleaned.startswith("+"):
-                return Text(text, style="bold #92d67e")
-            return Text(text, style="bold #c7d3ef")
-        if lowered == "bid":
-            return Text(text, style="bold #8cf3c0 on #123526")
-        if lowered == "ask":
-            return Text(text, style="bold #ffd5d9 on #3b1b25")
-        return text
-
-    def _record_update(self) -> None:
-        now = time.monotonic()
-        self._update_timestamps.append(now)
-        self._total_updates += 1
-        if self._stream_started_at is None:
-            self._stream_started_at = now
-        self._last_update_at = datetime.now()
-        self._refresh_status()
-
-    def _refresh_status(self) -> None:
-        self._refresh_interop_heartbeat()
-        now = time.monotonic()
-        cutoff = now - 1.0
-        while self._update_timestamps and self._update_timestamps[0] < cutoff:
-            self._update_timestamps.popleft()
-
-        rate = float(len(self._update_timestamps))
-        if self._stream_started_at is not None:
-            uptime_seconds = max(0, int(now - self._stream_started_at))
-            uptime = self._format_duration(uptime_seconds)
-        else:
-            uptime = "--:--:--"
-        last_update = self._last_update_at.strftime("%H:%M:%S") if self._last_update_at else "--:--:--"
-        status = Text()
-        if self._interop_is_running:
-            status.append("Interop: ● UP", style="bold #92d67e")
-        elif self._interop_exit_code is not None:
-            status.append(f"Interop: ● DOWN({self._interop_exit_code})", style="bold #f17486")
-        else:
-            status.append("Interop: ● DOWN", style="bold #8b90a1")
-        status.append(" | ")
-        status.append(f"Rows: {self._last_row_count} | Rate: {rate:.1f}/s | ")
-        status.append(f"Total Updates: {self._total_updates}", style="bold #79afe7")
-        status.append(f" | Uptime: {uptime} | ")
-        status.append(f"Last Update: {last_update}", style="bold #79afe7")
-        self.query_one("#live_status", Static).update(status)
-
-    def _refresh_interop_heartbeat(self) -> None:
-        is_running, exit_code = get_interop_status()
-        self._interop_is_running = is_running
-        self._interop_exit_code = exit_code
-
-    @staticmethod
-    def _format_duration(total_seconds: int) -> str:
-        hours = total_seconds // 3600
-        minutes = (total_seconds % 3600) // 60
-        seconds = total_seconds % 60
-        return f"{hours:02d}:{minutes:02d}:{seconds:02d}"
-
-    def _search_results(self) -> None:
-        raw = self.query_one("#results_search", Input).value.strip()
-        if ":" not in raw:
-            return
-        col_part, value_part = raw.split(":", 1)
-        target_col = col_part.strip()
-        target_value = value_part.strip()
-        if not target_col:
-            return
-
-        lookup = {name.lower(): idx for idx, name in enumerate(self._current_col_names)}
-        col_idx = lookup.get(target_col.lower())
-        if col_idx is None:
-            return
-
-        col_name = self._current_col_names[col_idx]
-        needle = target_value.lower()
-        for row_idx, row in enumerate(self._current_rows):
-            if not isinstance(row, dict):
-                continue
-            cell_value = self._stringify(row.get(col_name, ""))
-            if needle in cell_value.lower():
-                table = self.query_one("#results_table", DataTable)
-                table.move_cursor(row=row_idx, column=col_idx)
-                table.focus()
-                return
-
-    def _copy_selected_cell(self) -> None:
-        table = self.query_one("#results_table", DataTable)
-        if table.row_count == 0 or not self._current_col_names:
-            return
-        coordinate = table.cursor_coordinate
-        try:
-            cell = table.get_cell_at(coordinate)
-        except Exception:
-            return
-        if isinstance(cell, Text):
-            value = cell.plain
-        else:
-            value = self._stringify(cell)
-        self.copy_to_clipboard(value)
-
-    def _export_results_csv(self) -> None:
-        if not self._current_col_names:
-            return
-        timestamp = datetime.now().strftime("%Y%m%d_%H%M%S")
-        export_path = os.path.join(_here, f"DSQA_RESULTS_EXPORT_{timestamp}.csv")
-        with open(export_path, "w", newline="", encoding="utf-8") as csv_file:
-            writer = csv.writer(csv_file)
-            writer.writerow(self._current_col_names)
-            for row in self._current_rows:
-                if isinstance(row, dict):
-                    writer.writerow([self._stringify(row.get(col, "")) for col in self._current_col_names])
-
-    def _refresh_ops_tree(self) -> None:
-        tree = self.query_one("#ops_tree", Tree)
-        root = tree.root
-        root.remove_children()
-
-        if self._ops_catalog_error:
-            root.add(Text(self._ops_catalog_error, style="bold #f17486"))
-            root.expand()
-            return
-
-        grouped: dict[str, dict[str, dict[str, set[str]]]] = {}
-        for row in self._ops_catalog_rows:
-            if not isinstance(row, dict):
-                continue
-            row_lookup = {self._stringify(k).lower(): v for k, v in row.items()}
-            assembly_name = self._stringify(row_lookup.get("assembly_name", "")).strip() or "(unknown assembly)"
-            namespace = self._stringify(row_lookup.get("namespace", "")).strip() or "(global)"
-            op = self._stringify(row_lookup.get("op", "")).strip() or "(unknown op)"
-            constructor = self._stringify(row_lookup.get("constructor", "")).strip() or "(none)"
-            grouped.setdefault(assembly_name, {}).setdefault(namespace, {}).setdefault(op, set()).add(constructor)
-
-        if not grouped:
-            root.add(Text("No operator metadata available", style="#8ea0c6"))
-            root.expand()
-            return
-
-        for assembly_name in sorted(grouped.keys(), key=str.lower):
-            assembly_node = root.add(Text(assembly_name, style="bold #79afe7"))
-            for namespace in sorted(grouped[assembly_name].keys(), key=str.lower):
-                namespace_node = assembly_node.add(Text(namespace, style="#cfd7eb"))
-                for op in sorted(grouped[assembly_name][namespace].keys(), key=str.lower):
-                    op_node = namespace_node.add(
-                        Text(op, style="#b8c8e7"),
-                        data={"kind": "op", "op": op},
-                    )
-                    for constructor in sorted(grouped[assembly_name][namespace][op], key=str.lower):
-                        op_node.add(
-                            Text(constructor, style="#9eb0d4"),
-                            data={"kind": "constructor", "op": op, "constructor": constructor},
-                        )
-                    op_node.expand()
-                namespace_node.expand()
-            assembly_node.expand()
-        root.expand()
-
-    def _refresh_ops_tree_async(self) -> None:
-        if self._ops_catalog_loaded or self._ops_catalog_loading:
-            return
-        self._ensure_interop_started()
-        self._ops_catalog_loading = True
-        req_id = str(uuid.uuid4())
-
-        def _run() -> None:
-            try:
-                def _on_response(resp: DslResponse) -> None:
-                    self.call_from_thread(self._update_ops_catalog, resp)
-
-                get_dsl("OpsStream()", req_id, _on_response)
-            except Exception as exc:
-                error_resp = DslResponse(data_packet=None, req_id=req_id, error=str(exc))
-                self.call_from_thread(self._update_ops_catalog, error_resp)
-
-        threading.Thread(target=_run, daemon=True).start()
-
-    def _update_ops_catalog(self, response: DslResponse) -> None:
-        self._ops_catalog_loading = False
-        if response.error:
-            self._ops_catalog_rows = []
-            self._ops_catalog_error = self._stringify(response.error)
-            self._refresh_ops_tree()
-            return
-
-        if response.data_packet is None or not response.data_packet.state:
-            self._ops_catalog_rows = []
-            self._ops_catalog_error = "OpsStream() returned no data"
-            self._refresh_ops_tree()
-            return
-
-        data_packet = response.data_packet.state[0]
-        rows = data_packet.get("all", [])
-        if not isinstance(rows, list):
-            rows = []
-        normalized_rows: list[dict[str, Any]] = []
-        for row in rows:
-            if isinstance(row, dict):
-                normalized_rows.append(row)
-        self._ops_catalog_rows = normalized_rows
-        self._ops_catalog_error = None
-        self._ops_catalog_loaded = True
-        self._refresh_ops_tree()
-
-    def _toggle_stream_painting(self) -> None:
-        self._grid_updates_enabled = not self._grid_updates_enabled
-        self._set_stream_toggle_label()
-        self._set_pause_visuals()
-        if self._grid_updates_enabled and self._paused_latest_response is not None:
-            latest = self._paused_latest_response
-            self._paused_latest_response = None
-            self._render_response_internal(latest)
-
-    def _set_stream_toggle_label(self) -> None:
-        button = self.query_one("#stream_toggle_button", Button)
-        button.label = "⏸ Pause" if self._grid_updates_enabled else "▶ Play"
-
-    def _set_pause_visuals(self) -> None:
-        table = self.query_one("#results_table", DataTable)
-        panel = self.query_one("#results_panel", Vertical)
-        if self._grid_updates_enabled:
-            table.remove_class("paused")
-            panel.remove_class("paused")
-        else:
-            table.add_class("paused")
-            panel.add_class("paused")
-
-    def _load_last_query(self) -> str:
-        try:
-            with open(self.LAST_QUERY_PATH, "r", encoding="utf-8") as file:
-                text = file.read().strip()
-                return text if text else self.DEFAULT_QUERY
-        except FileNotFoundError:
-            return self.DEFAULT_QUERY
-        except OSError:
-            return self.DEFAULT_QUERY
-
-    def _save_last_query(self, query: str) -> None:
-        try:
-            with open(self.LAST_QUERY_PATH, "w", encoding="utf-8") as file:
-                file.write(query)
-        except OSError:
-            pass
-
-
-if __name__ == "__main__":
-    DSQALiveConsole().run()
@@ -1,31 +0,0 @@
-<Project Sdk="Microsoft.NET.Sdk">
-
-  <PropertyGroup>
-    <OutputType>Exe</OutputType>
-    <TargetFramework>net8.0</TargetFramework>
-    <ImplicitUsings>enable</ImplicitUsings>
-    <Nullable>enable</Nullable>
-    <AssemblyName>BlueOrbDSLInteropServer</AssemblyName>
-    <RootNamespace>BlueOrbDSLInteropServer</RootNamespace>
-  </PropertyGroup>
-
-  <Choose>
-    <When Condition="'$(UseProjectRefs)' == 'true'">
-      <ItemGroup>
-        <ProjectReference Include="..\..\cs\Bts.Spark.Api\Bts.Spark.Api.csproj" />
-        <ProjectReference Include="..\DataStream\DataStream.csproj" />
-        <ProjectReference Include="..\PubSub\PubSub.csproj" />
-        <ProjectReference Include="..\BlueOrbOperatorStreams\BlueOrbOperatorStreams.csproj" />
-      </ItemGroup>
-    </When>
-    <Otherwise>
-      <ItemGroup>
-        <PackageReference Include="Bts.Spark.Api" Version="$(SparkVersion)" />
-        <PackageReference Include="DataStream" Version="$(SparkVersion)" />
-        <PackageReference Include="PubSub" Version="$(SparkVersion)" />
-        <PackageReference Include="BlueOrbOperatorStreams" Version="$(SparkVersion)" />
-      </ItemGroup>
-    </Otherwise>
-  </Choose>
-
-</Project>
@@ -1,122 +0,0 @@
-using System;
-using System.Text.Json;
-using System.Text.Json.Serialization;
-
-using BCG;
-
-using bts.BlueOrb;
-
-using Bts.DataStream;
-
-using Bts.DataStreamCore;
-using Bts.DataStreamExpressions;
-using Bts.PubSub;
-
-using MathNet.Numerics.Statistics;
-
-
-namespace BlueOrbDSLInteropServer {
-   // BlueOrbDSLInteropServer reads DSL lines from stdin, validates them,
-   // and writes one DataPacket JSON line to stdout per input.
-   internal static class Program {
-      private const string ExitSignal = ":exit";
-      private static SyncQueue<DslRequest> _work_queue = new SyncQueue<DslRequest>();
-      private static JsonSerializerOptions response_json_options = new JsonSerializerOptions {
-         NumberHandling = JsonNumberHandling.AllowNamedFloatingPointLiterals
-      };
-      private static string _current_req_id;
-
-      // Request from Python
-      private sealed class DslRequest {
-         public string? dsl { get; set; }
-         public string? req_id { get; set; }
-      }
-
-      // Response envelope for Python: includes DataPacket, request id, and optional error.
-      private sealed class DslResponse {
-         public DataPacket? data_packet { get; set; }
-         public string? req_id { get; set; }
-         public string? error { get; set; }
-      }
-
-      private static void Main(string[] args) {
-         //System.Threading.Thread.Sleep(20000);
-         System.Threading.Thread thread = new Thread(_worker_loop);
-         thread.IsBackground = true;
-         thread.Start();
-         response_json_options.Converters.Add(new DataPacketJsonConverter {
-            IncludeCurrent = true,
-            UseObjectRows = true,
-         });
-         string? line;
-         while ((line = Console.ReadLine()) != null) {
-            line = line.Trim();
-            if (line.Length == 0) {
-               continue;
-            }
-            if (string.Equals(line, ExitSignal, StringComparison.OrdinalIgnoreCase)) {
-               break;
-            }
-
-            try {
-               DslRequest req = JsonSerializer.Deserialize<DslRequest>(line);
-               _work_queue.enqueue(req);
-            } catch (Exception ex) {
-               bts.Log.assert(false, ex.ToString());
-            }
-         }
-      }
-
-      private static void _worker_loop() {
-         Dictionary<string, ViewStream> req_map = new Dictionary<string, ViewStream>();
-         while (true) {
-            System.Threading.Thread.Sleep(100);
-            ViewStreamDatabase.instance.doWork();
-            var new_reqs = _work_queue.dequeue_all();
-            if (new_reqs == null || new_reqs.Count == 0) {
-               continue;
-            }
-            // ubsubscribing to previous stream(s)
-            foreach (var kv in req_map) {
-               kv.Value.onChange -= dp_obj => _on_dp(kv.Key, dp_obj);
-            }
-            foreach (var r in new_reqs) {
-               var req_id = string.IsNullOrWhiteSpace(r.req_id) ? Guid.NewGuid().ToString() : r.req_id;
-               _current_req_id = req_id;
-               try {
-                  DSLStream dsl_str = new DSLStream(r.dsl);
-                  req_map[req_id] = dsl_str;
-                  dsl_str.onChange += dp_obj => _on_dp(req_id, dp_obj);
-               } catch (Exception ex) {
-                  _write_error(req_id, ex.StackTrace);
-               }
-            }
-         }
-      }
-
-      private static void _on_dp(string req_id, object dp_obj) {
-         // eventhough we unsubscribe to all the other streams except the currrent one, 
-         // sometimes the onLastSub is not implemented and we still get updates, this masks them 
-         if (req_id != _current_req_id)
-            return;
-         DataPacket dp = dp_obj as DataPacket;
-         DslResponse response = new DslResponse() {
-            data_packet = dp,
-            req_id = req_id,
-            error = ""
-         };
-         var json = JsonSerializer.Serialize(response, response_json_options);
-         Console.WriteLine(json);
-      }
-
-      private static void _write_error(string req_id, string error) {
-         DslResponse response = new DslResponse() {
-            data_packet = null,
-            req_id = req_id,
-            error = error
-         };
-         var json = JsonSerializer.Serialize(response, response_json_options);
-         Console.WriteLine(json);
-      }
-   }
-}
@@ -1,514 +0,0 @@
-// namespace BlueOrb.Operators.Signal;
-
-// using BCG;
-
-// using bts;
-
-// using System;
-// using System.Collections.Generic;
-// using System.Globalization;
-// using System.Linq;
-
-// [DataStreamUserRespresentation("BarBuilderStream")]
-// public class BarBuilderStream : ViewStream
-// {
-//    enum BarType
-//    {
-//       TIME,
-//       TICK,
-//       VOLUME,
-//       DOLLAR,
-//    }
-
-//    enum PriceSource
-//    {
-//       trade_price,
-//       mid,
-//       bid,
-//       ask,
-//    }
-
-//    enum VolumeSource
-//    {
-//       trade_size,
-//       none,
-//    }
-
-//    enum SessionReset
-//    {
-//       NONE,
-//       DAY,
-//       RTH,
-//       ETH,
-//    }
-
-//    sealed class BarState
-//    {
-//       public string Contract = string.Empty;
-//       public DateTime StartTs;
-//       public DateTime EndTs;
-//       public double Open;
-//       public double High;
-//       public double Low;
-//       public double Close;
-//       public double Volume;
-//       public int TradeCount;
-//       public double SumPriceSize;
-//       public double SumSize;
-//       public double DollarNotional;
-//       public bool HasData;
-//       public DateTime SessionDay;
-//       public bool InitialSnapshotEmitted;
-//    }
-
-//    readonly ViewStream _priceStream;
-//    readonly BarType _barType;
-//    readonly int _barSize;
-//    readonly PriceSource _priceSource;
-//    readonly VolumeSource _volumeSource;
-//    readonly string _timestampCol;
-//    readonly bool _emitForming;
-//    readonly bool _emitInitialSnapshot;
-//    readonly SessionReset _sessionReset;
-
-//    readonly Dictionary<string, BarState> _stateByContract = new(StringComparer.Ordinal);
-//    readonly Dictionary<string, bool> _validCols = new(StringComparer.OrdinalIgnoreCase);
-//    bool _validated;
-//    int _nextId;
-//    readonly BlueTable _outTable;
-//    readonly IBlueTableSchema _outSchema;
-
-//    public BarBuilderStream(
-//       ViewStream price_stream,
-//       string bar_type,
-//       int bar_size,
-//       string price_source,
-//       string volume_source,
-//       string timestamp_col = "ts_event",
-//       int emit_forming_i = 0,
-//       string session_reset = "NONE",
-//       int emit_initial_snapshot_i = 0
-//    )
-//    {
-//       _priceStream = price_stream;
-//       _barType = ParseBarType(bar_type);
-//       _barSize = bar_size;
-//       _priceSource = ParsePriceSource(price_source);
-//       _volumeSource = ParseVolumeSource(volume_source);
-//       _timestampCol = timestamp_col;
-//       _emitForming = emit_forming_i == 1;
-//       _emitInitialSnapshot = emit_initial_snapshot_i == 1;
-//       _sessionReset = ParseSessionReset(session_reset);
-
-//       if (_barSize <= 0)
-//       {
-//          throw new ArgumentException("bar_size must be > 0");
-//       }
-
-//       _outSchema = BlueDataUtility.form_schema(
-//          "BarBuilder",
-//          Tuple.Create("id", TypeCode.Int32),
-//          Tuple.Create("ts_event", TypeCode.String),
-//          Tuple.Create("bar_start_ts", TypeCode.String),
-//          Tuple.Create("bar_end_ts", TypeCode.String),
-//          Tuple.Create("contract", TypeCode.String),
-//          Tuple.Create("open", TypeCode.Double),
-//          Tuple.Create("high", TypeCode.Double),
-//          Tuple.Create("low", TypeCode.Double),
-//          Tuple.Create("close", TypeCode.Double),
-//          Tuple.Create("volume", TypeCode.Double),
-//          Tuple.Create("trade_count", TypeCode.Int32),
-//          Tuple.Create("vwap", TypeCode.Double),
-//          Tuple.Create("is_forming", TypeCode.Boolean)
-//       );
-//       _outTable = new BlueTable(_outSchema);
-//    }
-
-//    protected override void myOnFirstSubscriber()
-//    {
-//       _priceStream.onChange += _on_price_change;
-//    }
-
-//    protected override void myOnLastSubscriber()
-//    {
-//       _priceStream.onChange -= _on_price_change;
-//    }
-
-//    void _on_price_change(object newValue)
-//    {
-//       var dp = newValue as IDataPacket;
-//       if (dp is null)
-//       {
-//          return;
-//       }
-//       if (!_validated)
-//       {
-//          ValidateInputSchema(dp.newRows.schema);
-//          _validated = true;
-//       }
-
-//       var emitted = new List<IBlueRow>();
-//       foreach (IBlueRow row in dp.addedRows)
-//       {
-//          ProcessEvent(row, emitted);
-//       }
-
-//       if (emitted.Count == 0)
-//       {
-//          return;
-//       }
-//       foreach (var r in emitted)
-//       {
-//          _outTable.addRow(r);
-//       }
-//       var outDp = BlueDataUtility.build_dp_inc(_outTable, myLastValue as IDataPacket);
-//       myFireEvent(outDp);
-//    }
-
-//    void ValidateInputSchema(IBlueTableSchema schema)
-//    {
-//       _validCols.Clear();
-//       foreach (var name in schema.columnNames)
-//       {
-//          _validCols[name] = true;
-//       }
-
-//       if (!_validCols.ContainsKey(_timestampCol))
-//       {
-//          throw new ArgumentException($"Missing required column: {_timestampCol}");
-//       }
-
-//       switch (_priceSource)
-//       {
-//          case PriceSource.trade_price:
-//             RequireCol("trade_price");
-//             break;
-//          case PriceSource.mid:
-//             RequireCol("bid_price");
-//             RequireCol("ask_price");
-//             break;
-//          case PriceSource.bid:
-//             RequireCol("bid_price");
-//             break;
-//          case PriceSource.ask:
-//             RequireCol("ask_price");
-//             break;
-//       }
-
-//       if (_barType is BarType.VOLUME or BarType.DOLLAR)
-//       {
-//          if (_volumeSource == VolumeSource.none || !_validCols.ContainsKey("trade_size"))
-//          {
-//             throw new ArgumentException("VOLUME/DOLLAR require executed trade volume; invalid for BBO-only streams.");
-//          }
-//       }
-//       else if (_volumeSource == VolumeSource.trade_size)
-//       {
-//          RequireCol("trade_size");
-//       }
-//    }
-
-//    void RequireCol(string name)
-//    {
-//       if (!_validCols.ContainsKey(name))
-//       {
-//          throw new ArgumentException($"Missing required column for selected source: {name}");
-//       }
-//    }
-
-//    void ProcessEvent(IBlueRow row, List<IBlueRow> emitted)
-//    {
-//       var ts = ParseTimestamp(row);
-//       var contract = ResolveContract(row);
-//       var price = ResolvePrice(row);
-//       var size = ResolveSize(row);
-//       var state = GetOrCreateState(contract);
-
-//       if (state.HasData && _sessionReset != SessionReset.NONE && ts.Date != state.SessionDay.Date)
-//       {
-//          emitted.Add(ToBarRow(state, ts_event: state.EndTs, isForming: false));
-//          state.HasData = false;
-//       }
-
-//       switch (_barType)
-//       {
-//          case BarType.TIME:
-//             ProcessTimeBar(state, ts, price, size, emitted);
-//             break;
-//          case BarType.TICK:
-//             ProcessThresholdBar(state, ts, price, size, emitted, state.TradeCount + 1 >= _barSize);
-//             break;
-//          case BarType.VOLUME:
-//             ProcessThresholdBar(state, ts, price, size, emitted, state.Volume + size >= _barSize);
-//             break;
-//          case BarType.DOLLAR:
-//             ProcessThresholdBar(state, ts, price, size, emitted, state.DollarNotional + (price * size) >= _barSize);
-//             break;
-//       }
-//    }
-
-//    void ProcessTimeBar(BarState state, DateTime ts, double price, double size, List<IBlueRow> emitted)
-//    {
-//       var bucketStart = AlignTimeBucket(ts, _barSize);
-//       var bucketEnd = bucketStart.AddSeconds(_barSize);
-
-//       if (!state.HasData)
-//       {
-//          StartBar(state, ts, bucketStart, bucketEnd, price, size);
-//          MaybeEmitInitialSnapshot(state, ts, emitted);
-//          if (_emitForming)
-//          {
-//             emitted.Add(ToBarRow(state, ts, isForming: true));
-//          }
-//          return;
-//       }
-
-//       if (bucketStart < state.StartTs)
-//       {
-//          Log.Gen.error(
-//             $"BarBuilderStream ignored out-of-order event. contract={state.Contract} ts={ToIso(ts)} " +
-//             $"current_bar_start={ToIso(state.StartTs)}");
-//          return;
-//       }
-
-//       if (bucketStart > state.StartTs)
-//       {
-//          emitted.Add(ToBarRow(state, state.EndTs, isForming: false));
-//          StartBar(state, ts, bucketStart, bucketEnd, price, size);
-//          if (_emitForming)
-//          {
-//             emitted.Add(ToBarRow(state, ts, isForming: true));
-//          }
-//          return;
-//       }
-
-//       Accumulate(state, price, size);
-//       state.EndTs = bucketEnd;
-//       if (_emitForming)
-//       {
-//          emitted.Add(ToBarRow(state, ts, isForming: true));
-//       }
-//    }
-
-//    void ProcessThresholdBar(
-//       BarState state,
-//       DateTime ts,
-//       double price,
-//       double size,
-//       List<IBlueRow> emitted,
-//       bool shouldClose
-//    )
-//    {
-//       if (!state.HasData)
-//       {
-//          StartBar(state, ts, ts, ts, price, size);
-//          MaybeEmitInitialSnapshot(state, ts, emitted);
-//       }
-//       else
-//       {
-//          Accumulate(state, price, size);
-//       }
-//       state.EndTs = ts;
-
-//       if (_emitForming)
-//       {
-//          emitted.Add(ToBarRow(state, ts, isForming: true));
-//       }
-//       if (shouldClose)
-//       {
-//          emitted.Add(ToBarRow(state, ts, isForming: false));
-//          state.HasData = false;
-//       }
-//    }
-
-//    static DateTime AlignTimeBucket(DateTime ts, int seconds)
-//    {
-//       var utc = ts.ToUniversalTime();
-//       long bucketTicks = TimeSpan.FromSeconds(seconds).Ticks;
-//       long aligned = (utc.Ticks / bucketTicks) * bucketTicks;
-//       return new DateTime(aligned, DateTimeKind.Utc);
-//    }
-
-//    void MaybeEmitInitialSnapshot(BarState state, DateTime ts, List<IBlueRow> emitted)
-//    {
-//       if (!_emitInitialSnapshot || state.InitialSnapshotEmitted)
-//       {
-//          return;
-//       }
-//       emitted.Add(ToBarRow(state, ts, isForming: false));
-//       state.InitialSnapshotEmitted = true;
-//    }
-
-//    void StartBar(
-//       BarState state,
-//       DateTime ts,
-//       DateTime barStart,
-//       DateTime barEnd,
-//       double price,
-//       double size
-//    )
-//    {
-//       state.StartTs = barStart;
-//       state.EndTs = barEnd;
-//       state.Open = price;
-//       state.High = price;
-//       state.Low = price;
-//       state.Close = price;
-//       state.Volume = 0;
-//       state.TradeCount = 0;
-//       state.SumPriceSize = 0;
-//       state.SumSize = 0;
-//       state.DollarNotional = 0;
-//       state.SessionDay = ts.Date;
-//       state.HasData = true;
-//       Accumulate(state, price, size);
-//    }
-
-//    static void Accumulate(BarState state, double price, double size)
-//    {
-//       state.High = Math.Max(state.High, price);
-//       state.Low = Math.Min(state.Low, price);
-//       state.Close = price;
-//       state.TradeCount++;
-//       if (size > 0)
-//       {
-//          state.Volume += size;
-//          state.SumSize += size;
-//          state.SumPriceSize += price * size;
-//          state.DollarNotional += price * size;
-//       }
-//    }
-
-//    IBlueRow ToBarRow(BarState state, DateTime ts_event, bool isForming)
-//    {
-//       double vwap = state.SumSize > 0 ? state.SumPriceSize / state.SumSize : state.Close;
-//       var row = new MutableBlueRow(_outSchema);
-//       row.setValue("id", _nextId++);
-//       row.setValue("ts_event", ToIso(ts_event));
-//       row.setValue("bar_start_ts", ToIso(state.StartTs));
-//       row.setValue("bar_end_ts", ToIso(state.EndTs));
-//       row.setValue("contract", state.Contract);
-//       row.setValue("open", state.Open);
-//       row.setValue("high", state.High);
-//       row.setValue("low", state.Low);
-//       row.setValue("close", state.Close);
-//       row.setValue("volume", _volumeSource == VolumeSource.none ? 0.0 : state.Volume);
-//       row.setValue("trade_count", state.TradeCount);
-//       row.setValue("vwap", vwap);
-//       row.setValue("is_forming", isForming);
-//       return row;
-//    }
-
-//    BarState GetOrCreateState(string contract)
-//    {
-//       if (_stateByContract.TryGetValue(contract, out var existing))
-//       {
-//          return existing;
-//       }
-//       var created = new BarState { Contract = contract };
-//       _stateByContract[contract] = created;
-//       return created;
-//    }
-
-//    DateTime ParseTimestamp(IBlueRow row)
-//    {
-//       object? raw = row[_timestampCol];
-//       if (raw is DateTime dt)
-//       {
-//          return dt;
-//       }
-//       if (raw is string s && DateTime.TryParse(s, null, DateTimeStyles.RoundtripKind, out dt))
-//       {
-//          return dt;
-//       }
-//       throw new ArgumentException($"Invalid timestamp value in column '{_timestampCol}'.");
-//    }
-
-//    string ResolveContract(IBlueRow row)
-//    {
-//       if (_validCols.ContainsKey("contract"))
-//       {
-//          return (row["contract"]?.ToString() ?? string.Empty).Trim();
-//       }
-//       if (_validCols.ContainsKey("symbol"))
-//       {
-//          return (row["symbol"]?.ToString() ?? string.Empty).Trim();
-//       }
-//       return string.Empty;
-//    }
-
-//    double ResolvePrice(IBlueRow row)
-//    {
-//       return _priceSource switch
-//       {
-//          PriceSource.trade_price => ToDouble(row["trade_price"], "trade_price"),
-//          PriceSource.mid => (ToDouble(row["bid_price"], "bid_price") + ToDouble(row["ask_price"], "ask_price")) / 2.0,
-//          PriceSource.bid => ToDouble(row["bid_price"], "bid_price"),
-//          PriceSource.ask => ToDouble(row["ask_price"], "ask_price"),
-//          _ => throw new ArgumentOutOfRangeException()
-//       };
-//    }
-
-//    double ResolveSize(IBlueRow row)
-//    {
-//       if (_volumeSource == VolumeSource.none)
-//       {
-//          return 0;
-//       }
-//       return ToDouble(row["trade_size"], "trade_size");
-//    }
-
-//    static double ToDouble(object? value, string colName)
-//    {
-//       var d = BlueDataUtility.GetDouble(value!);
-//       if (!d.HasValue)
-//       {
-//          throw new ArgumentException($"Column '{colName}' must be numeric.");
-//       }
-//       return d.Value;
-//    }
-
-//    static string ToIso(DateTime dt) =>
-//       dt.ToUniversalTime().ToString("O");
-
-//    static BarType ParseBarType(string value)
-//    {
-//       if (Enum.TryParse<BarType>(value, true, out var parsed))
-//       {
-//          return parsed;
-//       }
-//       throw new ArgumentException("bar_type must be one of: TIME | TICK | VOLUME | DOLLAR");
-//    }
-
-//    static PriceSource ParsePriceSource(string value)
-//    {
-//       if (Enum.TryParse<PriceSource>(value, true, out var parsed))
-//       {
-//          return parsed;
-//       }
-//       throw new ArgumentException("price_source must be one of: trade_price | mid | bid | ask");
-//    }
-
-//    static VolumeSource ParseVolumeSource(string value)
-//    {
-//       if (Enum.TryParse<VolumeSource>(value, true, out var parsed))
-//       {
-//          return parsed;
-//       }
-//       throw new ArgumentException("volume_source must be one of: trade_size | none");
-//    }
-
-//    static SessionReset ParseSessionReset(string value)
-//    {
-//       if (!Enum.TryParse<SessionReset>(value, true, out var parsed))
-//       {
-//          throw new ArgumentException("session_reset must be one of: NONE | DAY | RTH | ETH");
-//       }
-//       // TODO: differentiate RTH/ETH session boundaries; currently treated as DAY.
-//       if (parsed is SessionReset.RTH or SessionReset.ETH)
-//       {
-//          return SessionReset.DAY;
-//       }
-//       return parsed;
-//    }
-// }
@@ -1,41 +0,0 @@
-<Project Sdk="Microsoft.NET.Sdk">
-
-  <PropertyGroup>
-    <TargetFramework>net8.0</TargetFramework>
-    <ImplicitUsings>enable</ImplicitUsings>
-    <Nullable>enable</Nullable>
-  </PropertyGroup>
-
-  <ItemGroup>
-    <PackageReference Include="MathNet.Numerics" Version="5.0.0" />
-    <PackageReference Include="OpenAI" Version="2.0.0" />
-    <PackageReference Include="System.Linq.Async" Version="6.0.1" />
-  </ItemGroup>
-
-  <Choose>
-    <When Condition="'$(UseProjectRefs)' == 'true'">
-      <ItemGroup>
-        <ProjectReference Include="..\..\cs\Bts.Spark.Api\Bts.Spark.Api.csproj" />
-        <ProjectReference Include="..\DataStreamCore\DataStreamCore.csproj" />
-        <ProjectReference Include="..\DataStream\DataStream.csproj" />
-        <ProjectReference Include="..\PubSub\PubSub.csproj" />
-      </ItemGroup>
-    </When>
-    <Otherwise>
-      <ItemGroup>
-        <PackageReference Include="Bts.Spark.Api" Version="$(SparkVersion)" />
-        <PackageReference Include="DataStream" Version="$(SparkVersion)" />
-        <PackageReference Include="PubSub" Version="$(SparkVersion)" />
-      </ItemGroup>
-    </Otherwise>
-  </Choose>
-
-  <!-- <ItemGroup>
-    <RowType Include="RowTemplates\RefTypeRow.tt" SchemaJson="RowTemplates\PubSubHeartbeatSchema.json" TypeName="PubSubHeartbeatRow" TableName="PubSubHeartbeat" />
-    <RowType Include="RowTemplates\RefTypeRow.tt" SchemaJson="RowTemplates\PubSubRouteSchema.json" TypeName="PubSubRouteRow" TableName="PubSubRoute" />
-    <RowType Include="RowTemplates\RefTypeRow.tt" SchemaJson="RowTemplates\PubSubServerStateSchema.json" TypeName="PubSubServerStateRow" TableName="PubSubServerState" />
-    <RowType Include="RowTemplates\RefTypeRow.tt" SchemaJson="RowTemplates\PubSubServerTagStatsSchema.json" TypeName="PubSubServerTagStatsRow" TableName="PubSubServerTagStats" />
-    <RowType Include="RowTemplates\RefTypeRow.tt" SchemaJson="RowTemplates\TableMetadataSchema.json" TypeName="TableMetadataRow" TableName="TableMetadata" />
-  </ItemGroup> -->
-
-</Project>
@@ -1,294 +0,0 @@
-namespace BlueOrb.Internal
-{
-   using bts;
-   //using bts.api;
-   //using bts.spark;
-
-   using System;
-   using System.Diagnostics.CodeAnalysis;
-
-   public static class ContractUtils
-   {
-      public record FutureTradableContract(
-         string Symbol,
-         DateTime Expiration,
-         Exchange Exchange,
-         string? ContractText);
-
-      public class FutureSpreadContract
-      {
-         public List<Tuple<double, FutureTradableContract>> legs = new(2);
-         public string Symbol
-         {
-            get
-            {
-               return legs == null || legs.Count == 0 ? string.Empty : legs.ElementAt(0).Item2.Symbol;
-            }
-         }
-         public string? ContractText;
-      }
-
-      public record FutureContinousContract(string Symbol, Exchange Exchange);
-
-      // this is for all future conytracts belonging to a symbol
-      public record FutureWildcardContract(string Symbol, Exchange Exchange);
-
-      public class FutureContract
-      {
-         public FutureWildcardContract? wildcard_contract;
-         public FutureTradableContract? future_tradable_contract;
-         public FutureSpreadContract? spread_tradable_contract;
-         public FutureContinousContract? continous_constract;
-
-         public FutureContract(string txt)
-         {
-            wildcard_contract = parse_wildcard_contract(txt);
-            if (wildcard_contract != null)
-               return;
-            var fc = parse_future_contract(txt);
-            if (fc != null)
-            {
-               future_tradable_contract = fc;
-               return;
-            }
-            var sc = parse_future_spread_contract(txt);
-            if (sc != null)
-            {
-               spread_tradable_contract = sc;
-               return;
-            }
-            // this is not totally true, since ParseFutureSpreadContract does not
-            // parse ICS spreads
-            continous_constract = new(txt, Exchange.CME);
-         }
-
-         [MemberNotNullWhen(true, nameof(continous_constract))]
-         public bool is_continous_contract => continous_constract != null;
-
-         [MemberNotNullWhen(true, nameof(wildcard_contract))]
-         public bool is_wildcard_contract => wildcard_contract != null;
-
-         [MemberNotNullWhen(true, nameof(future_tradable_contract))]
-         public bool is_future_tradable_contract => future_tradable_contract != null;
-
-         [MemberNotNullWhen(true, nameof(spread_tradable_contract))]
-         public bool is_spread_tradable_contract => spread_tradable_contract != null;
-
-         public string symbol()
-         {
-            if (wildcard_contract != null)
-               return wildcard_contract.Symbol;
-            if (continous_constract != null)
-            {
-               return continous_constract.Symbol;
-            }
-            else if (future_tradable_contract != null)
-            {
-               return future_tradable_contract.Symbol;
-            }
-            else if (spread_tradable_contract != null)
-            {
-               return spread_tradable_contract.Symbol;
-            }
-            Log.assert(false);
-            return string.Empty;
-         }
-         public string? contract_text
-         {
-            get
-            {
-               if (future_tradable_contract != null)
-                  return future_tradable_contract.ContractText;
-               if (spread_tradable_contract != null)
-                  return spread_tradable_contract.ContractText;
-               return null;
-            }
-         }
-      }
-      #region Parsing
-      public static FutureWildcardContract? parse_wildcard_contract(string contract_txt, Exchange exchange = Exchange.CME)
-      {
-         if (contract_txt.EndsWith("*"))
-         {
-            contract_txt = contract_txt.Replace("*", string.Empty);
-            return new FutureWildcardContract(contract_txt, exchange);
-         }
-         return null;
-      }
-      public static FutureTradableContract? parse_future_contract(string contract_txt, Exchange exchange = Exchange.CME)
-      {
-         // Validate the future string length
-         if (!contract_txt.All(c => char.IsLetterOrDigit(c)))
-            return null;
-         if (contract_txt.Length < 4)
-         {
-            return null;
-         }
-
-         // Extract the symbol and the expiration month/year codes
-         string symbol = contract_txt.Substring(0, contract_txt.Length - 2);
-         char monthCode = contract_txt[contract_txt.Length - 2];
-         char yearCode = contract_txt[contract_txt.Length - 1];
-
-         // Map month code to month, return null if the month code is invalid
-         int month = monthCode switch
-         {
-            'F' => 1,  // January
-            'G' => 2,  // February
-            'H' => 3,  // March
-            'J' => 4,  // April
-            'K' => 5,  // May
-            'M' => 6,  // June
-            'N' => 7,  // July
-            'Q' => 8,  // August
-            'U' => 9,  // September
-            'V' => 10, // October
-            'X' => 11, // November
-            'Z' => 12, // December
-            _ => 0 // Return 0 for invalid month code
-         };
-
-         if (month == 0)
-         {
-            return null; // Invalid month code
-         }
-
-         // Calculate the year based on the current decade
-         int currentYear = DateTime.Now.Year;
-         int decadeStart = currentYear / 10 * 10;
-         int year = decadeStart + (yearCode - '0');
-
-         // If the year is in the past, assume the next decade
-         if (year < currentYear)
-         {
-            year += 10;
-         }
-
-         // Create the FutureContract instance and set its properties
-         DateTime expiration = new DateTime(year, month, 1);
-         return new(symbol, expiration, exchange, contract_txt);
-      }
-      // Method to parse a futures spread, e.g. "CLX4-CLZ4"
-      public static FutureSpreadContract? parse_future_spread_contract(string contract_txt, Exchange exchange = Exchange.CME)
-      {
-         // Split the string by '-' to handle each leg
-         var spreadParts = contract_txt.Split('-');
-         if (spreadParts.Length < 2)
-         {
-            return null; // Not a valid spread format
-         }
-
-         var spreadContract = new FutureSpreadContract { legs = new List<Tuple<double, FutureTradableContract>>() };
-
-         foreach (var part in spreadParts)
-         {
-            // Split each leg by '*', assuming the format is weight*future or just future
-            string[] legParts = part.Split('*');
-            double weight = 1.0;
-            string futurePart;
-
-            if (legParts.Length == 2)
-            {
-               if (!double.TryParse(legParts[0], out weight))
-               {
-                  return null; // Invalid weight, parsing failed
-               }
-               futurePart = legParts[1];
-            }
-            else if (legParts.Length == 1)
-            {
-               futurePart = legParts[0];
-            }
-            else
-            {
-               return null; // Invalid format, too many '*' parts
-            }
-
-            // Parse the future contract
-            var futureContract = parse_future_contract(futurePart, exchange);
-            if (futureContract == null)
-            {
-               return null; // Failed to parse the future part
-            }
-
-            // Add the leg to the spread contract
-            spreadContract.legs.Add(new Tuple<double, FutureTradableContract>(weight, futureContract));
-         }
-         return spreadContract;
-      }
-
-      // public static ContractType DetermineFutureOrSpread(string contract) {
-      //    if (contract.Contains("-")) {
-      //       return ContractType.FutureSpread;
-      //    } else {
-      //       return ContractType.Future;
-      //    }
-      // }
-      #endregion
-
-      public static ContractType get_type(string contract_txt)
-      {
-         var fc = parse_future_contract(contract_txt);
-         if (fc != null)
-         {
-            return ContractType.Future;
-         }
-         var sc = parse_future_spread_contract(contract_txt);
-         if (sc != null)
-         {
-            return ContractType.FutureSpread;
-         }
-         // tehre are some non calendar spreads we cant parse
-         //Log.assert(false);
-         return ContractType.FutureSpread;
-      }
-
-      public static ContractCategory get_category(string symbol)
-      {
-         var tp = get_symbol_category(symbol);
-         return tp.Item1;
-      }
-
-      public static Tuple<ContractCategory, string> get_symbol_category(string symbol)
-      {
-         var fc = parse_future_contract(symbol);
-         if (fc != null)
-         {
-            return Tuple.Create(ContractCategory.FutureString, fc.Symbol);
-         }
-         var sc = parse_future_spread_contract(symbol);
-         if (sc != null)
-         {
-            return Tuple.Create(ContractCategory.FutureString, sc.Symbol);
-         }
-         return Tuple.Create(ContractCategory.Symbol, symbol);
-      }
-
-
-
-      public enum ContractType
-      {
-         Spot,
-         Option,
-         Future,
-         FutureSpread,
-         OptionSpread
-      }
-      public enum ContractCategory
-      {
-         Symbol = 0,
-         FutureString,
-         SpreadString
-      }
-      public enum CallPut
-      {
-         Call,
-         Put
-      }
-      public enum Exchange
-      {
-         CME
-      }
-
-   }
-}
@@ -1,99 +0,0 @@
-namespace BlueOrb.Operators.Data {
-   using BCG;
-
-   using bts;
-
-   using Spark.Core.Diagnostics;
-
-   using BlueOrb.Internal;
-
-   using System;
-   using System.Collections.Generic;
-   using System.Linq;
-
-   [DataStreamUserRespresentation("ReplayFutureLiveBBOStream")]
-   public class ReplayFutureLiveBBOStream : ViewStream, BCG.Utilities.General.IWorker {
-      private class LastFireTime {
-         public DateTime last_fireitme_file = DateTime.MinValue;
-         public DateTime last_firetime_clock = DateTime.MinValue;
-      }
-      private class RowsWithPointer {
-         public List<IBlueRow>? rows;
-         public int pointer;
-      }
-
-
-      readonly ViewStreamDatabase? _vsd;
-      readonly ContractUtils.FutureContinousContract? _fcc;
-      private readonly LastFireTime _last_fire_time = new LastFireTime();
-      private RowsWithPointer _rows = new RowsWithPointer();
-
-      public ReplayFutureLiveBBOStream(string continous_contract) {
-         Func<string> iso_8601_now = () => {
-            DateTime utc_now = DateTime.UtcNow;
-            long ticks = utc_now.Ticks; // 1 tick = 100 ns
-            long nanoseconds = ticks % TimeSpan.TicksPerSecond * 100;
-            string formatted = utc_now.ToString("yyyy-MM-ddTHH:mm:ss");
-            formatted += $".{nanoseconds:D9}Z";
-            return formatted;
-         };
-         ViewStream rs = new ReplayFutureLiveBBOStream(continous_contract, true);
-         IBlueTableSchema schema_out = BlueDataUtility.form_schema("BBO",
-               Tuple.Create("id", TypeCode.Int32),
-               Tuple.Create("ts_event", TypeCode.String),
-               Tuple.Create("contract", TypeCode.String),
-               Tuple.Create("bid_price", TypeCode.Double),
-               Tuple.Create("bid_size", TypeCode.Int32),
-               Tuple.Create("ask_price", TypeCode.Double),
-               Tuple.Create("ask_size", TypeCode.Int32));
-         rs = new MapStream(rs, s => schema_out,
-            r =>
-            new BlueRow(schema_out, r["id"], /*r.get<string>("ts_event")*/iso_8601_now(), r.get<string>("symbol"),
-            r.get<double>("bid_px_00"), r.get<int>("bid_sz_00"),
-            r.get<double>("ask_px_00"), r.get<int>("ask_sz_00")));
-         mySetRealSource(rs);
-      }
-
-      private ReplayFutureLiveBBOStream(string continous_contract, bool noop)
-         : this(ViewStreamDatabase.instance, new ContractUtils.FutureContract(continous_contract)) { }
-
-      public ReplayFutureLiveBBOStream(ViewStreamDatabase vsd, ContractUtils.FutureContract fc) {
-         var fcc = fc.continous_constract;
-         Log.assert(fcc != null);
-         _vsd = vsd;
-         _fcc = fcc;
-      }
-
-      protected override void myOnFirstSubscriber() {
-         Log.notnull(_fcc);
-         var file_path = Path.Combine(SQLiteHelper.location, $"mbp1_{_fcc.Symbol}_small.csv".ToLower());
-         var rows = BCG.CSVReaderStream.LoadFile(file_path);
-         _rows.rows = new(rows.Count);
-         _rows.rows.AddRange(rows.OfType<IBlueRow>().OrderBy(r => r.get<string>("ts_event")));
-         _rows.pointer = 0;
-         ExceptionAssert.NotNull(_vsd).addWorker(this);
-      }
-
-      protected override void myOnLastSubscriber() {
-         ExceptionAssert.NotNull(_vsd).removeWorker(this);
-      }
-
-      public void doWork() {
-         var rows = ExceptionAssert.NotNull(_rows.rows);
-         IBlueRow cand_row = rows[_rows.pointer];
-         string cand_ts_event = cand_row.get<string>("ts_event");
-         DateTime cand_ts_event_dt = DateTime.Parse(cand_ts_event, null, System.Globalization.DateTimeStyles.RoundtripKind);
-         TimeSpan cand_ts_span_file = cand_ts_event_dt - _last_fire_time.last_fireitme_file;
-         TimeSpan ts_clock = DateTime.Now - _last_fire_time.last_firetime_clock;
-         if (ts_clock >= cand_ts_span_file) {
-            _rows.pointer++;
-            _last_fire_time.last_firetime_clock = DateTime.Now;
-            _last_fire_time.last_fireitme_file = cand_ts_event_dt;
-            BlueTable bt_out = new BlueTable(cand_row.schema);
-            bt_out.addRow(cand_row);
-            var dp_out = BlueDataUtility.build_dp(bt_out, myLastValue as IDataPacket);
-            myFireEvent(dp_out);
-         }
-      }
-   }
-}
@@ -1,111 +0,0 @@
-namespace Blueorb.Operators.Data
-{
-   using BCG;
-
-   using Spark.Core.Diagnostics;
-   using BlueOrb.Internal;
-   using bts;
-   using BlueOrb.Operators.Core;
-
-   using System;
-   using System.Collections.Generic;
-   using System.Linq;
-
-   [DataStreamUserRespresentation("ReplayFutureLiveTradeStream")]
-   public class ReplayFutureLiveTradeStream : ViewStream, BCG.Utilities.General.IWorker
-   {
-      private class LastFireTime
-      {
-         public DateTime last_fireitme_file = DateTime.MinValue;
-         public DateTime last_firetime_clock = DateTime.MinValue;
-      }
-      private class RowsWithPointer
-      {
-         public List<IBlueRow>? rows;
-         public int pointer;
-      }
-
-
-      readonly ViewStreamDatabase? _vsd;
-      readonly ContractUtils.FutureContinousContract? _fcc;
-      private readonly LastFireTime _last_fire_time = new LastFireTime();
-      readonly RowsWithPointer _rows = new();
-
-      public ReplayFutureLiveTradeStream(string continous_contract)
-      {
-         Func<string> iso_8601_now = () =>
-         {
-            DateTime utc_now = DateTime.UtcNow;
-            long ticks = utc_now.Ticks; // 1 tick = 100 ns
-            long nanoseconds = ticks % TimeSpan.TicksPerSecond * 100;
-            string formatted = utc_now.ToString("yyyy-MM-ddTHH:mm:ss");
-            formatted += $".{nanoseconds:D9}Z";
-            return formatted;
-         };
-         ViewStream rs = new ReplayFutureLiveTradeStream(continous_contract, true);
-         IBlueTableSchema schema_out = BlueDataUtility.form_schema("BBO",
-               Tuple.Create("id", TypeCode.Int32),
-               Tuple.Create("ts_event", TypeCode.String),
-               Tuple.Create("contract", TypeCode.String),
-               Tuple.Create("trade_size", TypeCode.Double),
-               Tuple.Create("trade_price", TypeCode.Int32),
-               Tuple.Create("aggressor_side", TypeCode.String));
-         rs = new MapStream(rs, s => schema_out,
-            r =>
-            new BlueRow(schema_out, r["id"], /*r.get<string>("ts_event")*/iso_8601_now(), r.get<string>("symbol"),
-            r.get<double>("size"), r.get<double>("price"),
-            r.get<string>("side").StartsWith("B") ? "BUY" : (r.get<string>("side").StartsWith("A") ? "SELL" : "NONE")));
-         rs = new TimeSeriesStream(rs);
-         mySetRealSource(rs);
-      }
-
-      private ReplayFutureLiveTradeStream(string continous_contract, bool noop)
-         : this(ViewStreamDatabase.instance, new ContractUtils.FutureContract(continous_contract)) { }
-
-      public ReplayFutureLiveTradeStream(ViewStreamDatabase vsd, ContractUtils.FutureContract fc)
-      {
-         var fcc = fc.continous_constract;
-         Log.assert(fcc != null);
-         _vsd = vsd;
-         _fcc = fcc;
-      }
-
-      protected override void myOnFirstSubscriber()
-      {
-         Log.notnull(_vsd);
-         Log.notnull(_fcc);
-         var file_path = Path.Combine(SQLiteHelper.location, $"trades_{_fcc.Symbol}.csv");
-         var csv_rd = new BlueOrb.Operators.Core.CSVReaderStream(file_path, false);
-         var rows = BCG.CSVReaderStream.LoadFile(file_path);
-         _rows.rows = new(rows.Count);
-         _rows.rows.AddRange(rows.OfType<IBlueRow>().OrderBy(r => r.get<string>("ts_event")));
-         _rows.pointer = 0;
-         ExceptionAssert.NotNull(_vsd).addWorker(this);
-      }
-
-      protected override void myOnLastSubscriber()
-      {
-         ExceptionAssert.NotNull(_vsd).removeWorker(this);
-      }
-
-      public void doWork()
-      {
-         var rows = ExceptionAssert.NotNull(_rows.rows);
-         IBlueRow cand_row = rows[_rows.pointer];
-         string cand_ts_event = cand_row.get<string>("ts_event");
-         DateTime cand_ts_event_dt = DateTime.Parse(cand_ts_event, null, System.Globalization.DateTimeStyles.RoundtripKind);
-         TimeSpan cand_ts_span_file = cand_ts_event_dt - _last_fire_time.last_fireitme_file;
-         TimeSpan ts_clock = DateTime.Now - _last_fire_time.last_firetime_clock;
-         if (ts_clock >= cand_ts_span_file)
-         {
-            _rows.pointer++;
-            _last_fire_time.last_firetime_clock = DateTime.Now;
-            _last_fire_time.last_fireitme_file = cand_ts_event_dt;
-            BlueTable bt_out = new BlueTable(cand_row.schema);
-            bt_out.addRow(cand_row);
-            var dp_out = BlueDataUtility.build_dp(bt_out, myLastValue as IDataPacket);
-            myFireEvent(dp_out);
-         }
-      }
-   }
-}
@@ -1,144 +0,0 @@
-using System;
-using System.Collections.Generic;
-using System.Data;
-using System.Data.SQLite;
-using System.IO;
-using System.Runtime.InteropServices;
-
-namespace BlueOrb.Internal
-{
-
-   public static class SQLiteHelper
-   {
-      public static string location = RuntimeInformation.IsOSPlatform(OSPlatform.Windows)
-         ? "C:\\BlueOrb_Data\\"
-         : Path.Combine(Environment.GetEnvironmentVariable("HOME") ?? string.Empty, "BlueOrb_Data");
-      public static string db_name = "stream_data.db";
-
-      public static DataTable execute_select_query(string connection_string, string query)
-      {
-         // Create a new DataTable to store the results
-         DataTable dataTable = new DataTable();
-
-         // Create and open a SQLite connection using the provided connection string
-         using (SQLiteConnection connection = new SQLiteConnection(connection_string))
-         {
-            try
-            {
-               connection.Open();
-
-               // Create a SQLite command with the provided query
-               using (SQLiteCommand command = new SQLiteCommand(query, connection))
-               {
-                  // Use SQLiteDataAdapter to fill the DataTable
-                  using (SQLiteDataAdapter adapter = new SQLiteDataAdapter(command))
-                  {
-                     adapter.Fill(dataTable);
-                  }
-               }
-            }
-            catch (Exception ex)
-            {
-               Console.WriteLine("An error occurred: " + ex.Message);
-            }
-         }
-         // Return the populated DataTable
-         return dataTable;
-      }
-
-      public static List<Dictionary<string, object>> ExecuteBulkRead(string connectionString, string query)
-      {
-         var result = new List<Dictionary<string, object>>();
-
-         using (var connection = new SQLiteConnection(connectionString))
-         {
-            connection.Open();
-
-            // Begin a transaction to optimize read speed
-            using (var transaction = connection.BeginTransaction())
-            using (var command = new SQLiteCommand(query, connection, transaction))
-            using (var reader = command.ExecuteReader())
-            {
-               while (reader.Read())
-               {
-                  var row = new Dictionary<string, object>();
-
-                  for (int i = 0; i < reader.FieldCount; i++)
-                  {
-                     string columnName = reader.GetName(i);
-                     object columnValue = reader.IsDBNull(i) ? null : reader.GetValue(i);
-                     row[columnName] = columnValue;
-                  }
-
-                  result.Add(row);
-               }
-
-               // Commit the transaction
-               transaction.Commit();
-            }
-         }
-
-         return result;
-      }
-
-      public static List<Dictionary<string, object>> get_table(string connectionString, string query)
-      {
-         var result = new List<Dictionary<string, object>>();
-
-         using (var connection = new SQLiteConnection(connectionString))
-         {
-            try
-            {
-               connection.Open();
-
-               using (var command = new SQLiteCommand(query, connection))
-               using (var reader = command.ExecuteReader())
-               {
-                  while (reader.Read())
-                  {
-                     var row = new Dictionary<string, object>();
-
-                     for (int i = 0; i < reader.FieldCount; i++)
-                     {
-                        string columnName = reader.GetName(i);
-                        object columnValue = reader.IsDBNull(i) ? null : reader.GetValue(i);
-                        row[columnName] = columnValue;
-                     }
-
-                     result.Add(row);
-                  }
-               }
-            }
-            catch (Exception ex)
-            {
-               Console.WriteLine("An error occurred: " + ex.Message);
-            }
-         }
-         return result;
-      }
-
-      public static IEnumerable<Dictionary<string, object>> get_table_2(string connectionString, string query)
-      {
-         using (var connection = new SQLiteConnection(connectionString))
-         {
-            connection.Open();
-            using (var command = new SQLiteCommand(query, connection))
-            using (var reader = command.ExecuteReader())
-            {
-               while (reader.Read())
-               {
-                  var row = new Dictionary<string, object>();
-                  for (int i = 0; i < reader.FieldCount; i++)
-                  {
-                     string columnName = reader.GetName(i);
-                     object columnValue = reader.IsDBNull(i) ? null : reader.GetValue(i);
-                     row[columnName] = columnValue;
-                  }
-                  yield return row;
-               }
-            }
-         }
-      }
-   }
-}
-
@@ -1,43 +0,0 @@
-namespace BlueOrb.Internal
-{
-   using bts;
-   using System;
-   using BCG;
-   using System.Collections.Generic;
-   using Bts.DataStreamExpressions;
-   using System.Xml;
-
-   // All this does is take in a dsl expression, parse it and fire the data that come out of running it.
-   // So for example, if an expresison is passed 
-   [DataStreamUserRespresentation("dsl")]
-   public class DSLStream : ViewStream
-   {
-      private readonly string _dsl;
-      public DSLStream(string dsl)
-      {
-         Log.Gen.info($"DSLStream.cons dsl: {dsl}");
-         // Remove all colons
-         string sanitizedDsl = dsl.Replace(":", "COLON");
-         _dsl = dsl;
-         ViewStream rs = build_stream(dsl) ?? new LiteralStream("error", $"msg:invalid dsl");
-         mySetRealSource(rs);
-      }
-
-      static ViewStream? build_stream(string stream_expression)
-      {
-         try
-         {
-            var exp = DataStreamExpressionsInterpreter.Evaluate(stream_expression);
-            var rv = exp.getView(new Dictionary<string, StatementExpression>(0));
-            return rv;
-
-         }
-         catch (Exception ex)
-         {
-            //send to blueorb
-            Log.Gen.error($"Could not build stream: {stream_expression} ex: {ex}");
-            return null;
-         }
-      }
-   }
-}
@@ -1,103 +0,0 @@
-using System;
-
-using BCG.Utilities.General;
-using BCG;
-using bts;
-
-namespace BlueOrb.Internal
-{
-   [DataStreamUserRespresentation("MillisecondStream")]
-   public class MillisecondStream : ViewStream, IWorker
-   {
-      private DateTime _last_fire_time = DateTime.MinValue;
-      private readonly TimeSpan _period;
-      private readonly int _size;
-      private readonly ViewStreamDatabase _vsd;
-      private IBlueTableSchema _schema;
-      private bts.CircularBufferTable _table;
-
-      public MillisecondStream(int interval_msecs, int size)
-      : this(ViewStreamDatabase.instance, interval_msecs, size)
-      {
-      }
-
-      public MillisecondStream(ViewStreamDatabase vsd, int interval_msecs, int size)
-      {
-         _vsd = vsd;
-         _period = TimeSpan.FromMilliseconds(interval_msecs);
-         _size = size;
-         _schema = BlueDataUtility.form_schema("Milliseconds",
-               Tuple.Create("id", TypeCode.Int32),
-               Tuple.Create("time", TypeCode.DateTime),
-               Tuple.Create("display_time", TypeCode.String));
-         _table = new CircularBufferTable(_schema, _size);
-      }
-
-      protected override void myOnFirstSubscriber()
-      {
-         _vsd.addWorker(this);
-      }
-
-      protected override void myOnLastSubscriber()
-      {
-         _vsd.removeWorker(this);
-      }
-
-      private int _id = 0;
-      public void doWork()
-      {
-         if (DateTime.Now - _last_fire_time >= _period)
-         {
-            _last_fire_time = DateTime.Now;
-            IBlueRow nr = new BlueRow(_schema, _id++, _last_fire_time,
-            _last_fire_time.ToString("yyyy-MM-dd HH:mm:ss.fff"));
-            _table.add_row(nr);
-            var dp = BlueDataUtility.build_dp_inc(_table, myLastValue as DataPacket);
-            myFireEvent(dp);
-         }
-      }
-   }
-   internal class MSecondStream : TimeUnitStream
-   {
-      public MSecondStream(int intervalInms, int size)
-         : base(DateTime.Now, new TimeSpan(0, 0, 0, 0, intervalInms), size, ViewStreamDatabase.instance) { }
-
-      protected override DateTime myRoundTime(DateTime dt) { return dt; }
-   }
-
-   internal class DisplayableMillisecondStream : ViewStream, IStreamMapper
-   {
-      private IBlueTableSchema mySchema = new BlueTableSchema("ms",
-                                                               new ColumnInfo("id", 0, typeof(int)),
-                                                               new ColumnInfo("time", 1, typeof(string)));
-      public DisplayableMillisecondStream(int intervalInMs, int sz)
-      {
-         mySetRealSource(new MapStream(new MSecondStream(intervalInMs, sz), this));
-      }
-      #region IStreamMapper Members
-
-      public IBlueTableSchema getOutputSchema(IBlueTableSchema inputSchema)
-      {
-         return mySchema;
-      }
-
-      #endregion
-
-      #region IDynamicStreamMapper Members
-
-      public IBlueRow map(IBlueRow row)
-      {
-         DateTime time = row.get_datetime("time");
-         var time_txt = time.ToString("yyyy-MM-dd HH:mm:ss.fff");
-         return new BlueRow(mySchema, row["id"], time_txt);
-      }
-
-      #endregion
-
-      private string myToString(DateTime dt)
-      {
-         string sep = ":";
-         return dt.Hour + sep + dt.Minute + sep + dt.Second + sep + dt.Millisecond;
-      }
-   }
-}
@@ -1,348 +0,0 @@
-namespace BlueOrb.Operators.Signal
-{
-   using System;
-   using System.Collections.Concurrent;
-   using System.IO.MemoryMappedFiles;
-   using BCG;
-   using System.Text.Json.Serialization;
-   using System.Text.Json;
-   using System.Data;
-
-
-   public enum BarType
-   {
-      TIME,
-      TICK,
-      VOLUME,
-      DOLLAR,
-   }
-
-   public class BarBuilderSchemaInfo
-   {
-      [JsonPropertyName("price_col")]
-      public string price_col { get; set; } = "trade_price";
-
-      [JsonPropertyName("volume_col")]
-      public string volume_col { get; set; } = "trade_size";
-
-      [JsonPropertyName("timestamp_col")]
-      public string timestamp_col { get; set; } = "ts_event";
-   }
-
-
-   public class SingleBar : IBlueRow
-   {
-      private BarBuilderStream _parent_str;
-      private IBlueTableSchema _schema;
-      private MutableBlueRow _row;
-      public SingleBar(BarBuilderStream parent_str)
-      {
-         _parent_str = parent_str;
-         _schema = BlueDataUtility.form_schema(
-            "bar_builder_single_bar",
-            Tuple.Create("id", TypeCode.Int32),
-            Tuple.Create("ts_event", TypeCode.DateTime),
-            Tuple.Create("bar_start_ts", TypeCode.DateTime),
-            Tuple.Create("bar_end_ts", TypeCode.DateTime),
-            Tuple.Create("open", TypeCode.Double),
-            Tuple.Create("high", TypeCode.Double),
-            Tuple.Create("low", TypeCode.Double),
-            Tuple.Create("close", TypeCode.Double),
-            Tuple.Create("volume", TypeCode.Double),
-            Tuple.Create("notional", TypeCode.Double),
-            Tuple.Create("trade_count", TypeCode.Int32),
-            Tuple.Create("n_events", TypeCode.Int32),
-            Tuple.Create("vwap", TypeCode.Double),
-            Tuple.Create("is_active", TypeCode.Boolean)
-         );
-         _row = new MutableBlueRow(_schema);
-      }
-
-      public IBlueTableSchema schema => _row.schema;
-
-      public object this[int index] => _row[index];
-
-      public object this[string col_name] => _row[col_name];
-
-
-      public IBlueRow add_event(IBlueRow r)
-      {
-         // initiaizes _row
-         void reset_new_bar()
-         {
-            _row = new MutableBlueRow(_schema);
-            _row.setValue("id", _parent_str.get_new_id());
-            _row.setValue("volume", 0.0);
-            _row.setValue("notional", 0.0);
-            _row.setValue("trade_count", 0);
-            _row.setValue("n_events", 0);
-            _row.setValue("is_active", true);
-         }
-
-         void absorb_into_row(IBlueRow input_row)
-         {
-            var ts = input_row.get_datetime(_parent_str._schema_info.timestamp_col, DateTime.UtcNow).ToUniversalTime();
-            var price = input_row.get<double>(_parent_str._schema_info.price_col, 0.0);
-            var volume = input_row.get<double>(_parent_str._schema_info.volume_col, 0.0);
-            var notional = price * volume;
-
-            if (_row.is_null("bar_start_ts"))
-            {
-               DateTime bar_start_ts;
-               DateTime bar_end_ts;
-               if (_parent_str._bar_type == BarType.TIME)
-               {
-                  var bucket_ticks = (long)(Math.Max(1.0, _parent_str._bar_size) * TimeSpan.TicksPerSecond);
-                  var start_ticks = (ts.Ticks / bucket_ticks) * bucket_ticks;
-                  bar_start_ts = new DateTime(start_ticks, DateTimeKind.Utc);
-                  bar_end_ts = bar_start_ts.AddTicks(bucket_ticks);
-               }
-               else
-               {
-                  bar_start_ts = ts;
-                  bar_end_ts = ts;
-               }
-               _row.setValue("bar_start_ts", bar_start_ts);
-               _row.setValue("bar_end_ts", bar_end_ts);
-               _row.setValue("open", price);
-               _row.setValue("high", price);
-               _row.setValue("low", price);
-            }
-            else
-            {
-               var high = _row.get<double>("high", price);
-               var low = _row.get<double>("low", price);
-               _row.setValue("high", Math.Max(high, price));
-               _row.setValue("low", Math.Min(low, price));
-            }
-
-            _row.setValue("ts_event", ts);
-            _row.setValue("close", price);
-            _row.setValue("volume", _row.get<double>("volume", 0.0) + volume);
-            _row.setValue("notional", _row.get<double>("notional", 0.0) + notional);
-            _row.setValue("trade_count", _row.get<int>("trade_count", 0) + 1);
-            _row.setValue("n_events", _row.get<int>("n_events", 0) + 1);
-            var running_volume = _row.get<double>("volume", 0.0);
-            var running_notional = _row.get<double>("notional", 0.0);
-            _row.setValue("vwap", running_volume > 0.0 ? running_notional / running_volume : price);
-         }
-
-         bool is_closed()
-         {
-            bool closed;
-            if (_parent_str._bar_type == BarType.TIME)
-            {
-               var ts = _row.get_datetime("ts_event", DateTime.MinValue);
-               var bar_end_ts = _row.get_datetime("bar_end_ts", DateTime.MaxValue);
-               closed = ts >= bar_end_ts;
-            }
-            else if (_parent_str._bar_type == BarType.TICK)
-            {
-               closed = _row.get<int>("n_events", 0) >= _parent_str._bar_size;
-            }
-            else if (_parent_str._bar_type == BarType.VOLUME)
-            {
-               closed = _row.get<double>("volume", 0.0) >= _parent_str._bar_size;
-            }
-            else
-            {
-               closed = _row.get<double>("notional", 0.0) >= _parent_str._bar_size;
-            }
-            _row.setValue("is_active", !closed);
-            return closed;
-         }
-
-         if (_row == null)
-         {
-            reset_new_bar();
-         }
-         absorb_into_row(r);
-         if (is_closed())
-         {
-            IBlueRow closed_row = new BlueRow(_row);
-            reset_new_bar();
-            return closed_row;
-         }
-         return null;
-      }
-
-   }
-
-
-   public class BarState : IBlueRowCollection
-   {
-      private SingleBar _curr_row;
-      private BlueTable _state;
-
-      public BarState(BarBuilderStream parent_str)
-      {
-         _curr_row = new SingleBar(parent_str);
-         _state = new BlueTable(_curr_row.schema);
-      }
-
-      public bool add_event(IBlueRow r)
-      {
-         var closed_bar = _curr_row.add_event(r);
-         if (closed_bar is not null)
-         {
-            // curr bar is closed, only then its added
-            // when bars are evolving we dont add it
-            _state.addRow(closed_bar);
-            return true;
-         }
-         return false;
-      }
-
-      public IBlueRow this[int id] => _state[id];
-
-      public IBlueTableSchema schema => _state.schema;
-
-      public bool containsID(int id) => _state.containsID(id);
-
-      public int Count => _state.Count;
-
-      public System.Collections.IEnumerator GetEnumerator() => _state.GetEnumerator();
-   }
-
-   [DataStreamUserRespresentation("BarBuilderStream")]
-   public class BarBuilderStream : ViewStream
-   {
-      readonly ViewStream _price_stream;
-      internal readonly BarType _bar_type;
-      internal readonly double _bar_size;
-      internal readonly bool _show_open_bars;
-      internal readonly BarBuilderSchemaInfo _schema_info;
-      private BarState _state;
-
-      public BarBuilderStream(ViewStream price_stream,
-                               BarType bar_type,
-                               double bar_size,
-                               bool show_open_bars,
-                               BarBuilderSchemaInfo schema_info)
-      {
-         _price_stream = price_stream;
-         _bar_type = bar_type;
-         _bar_size = bar_size;
-         _show_open_bars = show_open_bars;
-         _schema_info = schema_info;
-         _state = new BarState(this);
-      }
-
-      int _id = 0;
-      internal int get_new_id()
-      {
-         return _id++;
-      }
-
-      public BarBuilderStream(ViewStream price_stream,
-                               string bar_type,
-                               double bar_size,
-                               string schema_info_json)
-                               :
-                               this(price_stream,
-                                     Enum.Parse<BarType>(bar_type),
-                                     bar_size,
-                                     true,
-                                    _parse_and_validate_schema_info_json(schema_info_json))
-      {
-      }
-
-      public BarBuilderStream(ViewStream price_stream,
-                               string bar_type,
-                               double bar_size,
-                               string price_col,
-                               string volume_col,
-                               string timestamp_col)
-                               :
-                               this(price_stream,
-                                     Enum.Parse<BarType>(bar_type),
-                                     bar_size,
-                                     true,
-                                     _create_and_validate_schema_info(price_col, volume_col, timestamp_col))
-      {
-      }
-
-      protected override void myOnFirstSubscriber()
-      {
-         _price_stream.onChange += _on_price_stream_change;
-      }
-
-      protected override void myOnLastSubscriber()
-      {
-         _price_stream.onChange -= _on_price_stream_change;
-      }
-
-      void _on_price_stream_change(object dp_obj)
-      {
-         DataPacket dp = dp_obj as DataPacket;
-         var sz_0 = _state.Count;
-         foreach (IBlueRow r in dp.addedRows)
-         {
-            _state.add_event(r);
-         }
-         if (_state.Count != sz_0)
-         // we will check for _show_open_bars here 
-         {
-            var dp_out = BlueDataUtility.build_dp_inc(_state, myLastValue as DataPacket, false);
-            myFireEvent(dp_out);
-         }
-      }
-
-
-      static BarBuilderSchemaInfo _parse_and_validate_schema_info_json(string schema_info_json)
-      {
-         if (string.IsNullOrWhiteSpace(schema_info_json))
-         {
-            throw new ArgumentException("schema_info_json cannot be null or empty.", nameof(schema_info_json));
-         }
-
-         var schema_info = JsonSerializer.Deserialize<BarBuilderSchemaInfo>(schema_info_json);
-         _validate_schema_info(schema_info);
-         return schema_info!;
-      }
-
-      static BarBuilderSchemaInfo _create_and_validate_schema_info(
-         string price_col,
-         string volume_col,
-         string timestamp_col)
-      {
-         var schema_info = new BarBuilderSchemaInfo
-         {
-            price_col = price_col,
-            volume_col = volume_col,
-            timestamp_col = timestamp_col,
-         };
-         _validate_schema_info(schema_info);
-         return schema_info;
-      }
-
-      static void _validate_schema_info(BarBuilderSchemaInfo? schema_info)
-      {
-         if (schema_info is null)
-         {
-            throw new ArgumentException("schema_info_json did not deserialize into BarBuilderSchemaInfo.");
-         }
-
-         if (string.IsNullOrWhiteSpace(schema_info.price_col))
-         {
-            throw new ArgumentException("BarBuilderSchemaInfo.PriceCol cannot be null or empty.");
-         }
-         if (string.IsNullOrWhiteSpace(schema_info.volume_col))
-         {
-            throw new ArgumentException("BarBuilderSchemaInfo.VolumeCol cannot be null or empty.");
-         }
-         if (string.IsNullOrWhiteSpace(schema_info.timestamp_col))
-         {
-            throw new ArgumentException("BarBuilderSchemaInfo.TimestampCol cannot be null or empty.");
-         }
-
-         if (schema_info.price_col.Equals(schema_info.volume_col, StringComparison.OrdinalIgnoreCase) ||
-             schema_info.price_col.Equals(schema_info.timestamp_col, StringComparison.OrdinalIgnoreCase) ||
-             schema_info.volume_col.Equals(schema_info.timestamp_col, StringComparison.OrdinalIgnoreCase))
-         {
-            throw new ArgumentException("BarBuilderSchemaInfo columns must be distinct.");
-         }
-      }
-   }
-
-}
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">

  <PropertyGroup>
-    <TargetFramework>net8.0</TargetFramework>
+    <TargetFramework>net7.0</TargetFramework>
    <ImplicitUsings>enable</ImplicitUsings>
    <Nullable>enable</Nullable>
  </PropertyGroup>
@@ -1,6 +1,4 @@
 using System;
-using System.Runtime.Versioning;
-
 using Microsoft.Win32;

 namespace BCG
@@ -12,7 +10,6 @@ namespace BCG
         rk.SetValue (name, value.ToString ());
      }

-      [SupportedOSPlatform("windows")]
      public static double getValue (RegistryKey rk, string name)
      {
         object v = rk.GetValue (name);
@@ -6,80 +6,23 @@ using Spark.Core.Collections;

 static class ArgumentComparer {
   public static int Compare(
-      IArgument value1, IArgument value2, IDictionary<string, object?> env) {
+      IArgument value1, IArgument value2, IDictionary<string,object?> env) {
      if (value1 is null) {
         throw new ArgumentNullException(nameof(value1));
      }
      if (value2 is null) {
         throw new ArgumentNullException(nameof(value2));
      }
-      var obj1 = value1.GetValue(env);
-      var obj2 = value2.GetValue(env);
-      if (obj1 is null) {
-         if (obj2 is null) {
-            return 0;
-         }
-         return -1;
-      }
-      if (obj2 is null) {
-         return 1;
-      }
-      return compareObjs(obj1, obj2);
-   }
-
-   static int compareObjs(object obj1, object obj2) {
+      var cmp1 = value1.Cast<IComparable>();
+      var cmp2 = value2.Cast<IComparable>();
      try {
-         var typ1 = obj1.GetType();
-         var typ2 = obj2.GetType();
-         bool areSameTypes = typ1 == typ2;
-         if (areSameTypes) {
-            return ((IComparable)obj1).CompareTo(obj2);
-         }
-         if (typ1.IsNumeric()) {
-            return tryCompareNumeric(obj1, obj2);
-         } else if (typ2.IsNumeric()) {
-            return -tryCompareNumeric(obj2, obj1);
-         } else if (typ1.IsEnum) {
-            if (typ2 == typeof(string)) {
-               return -((string)obj2).CompareTo(obj1.ToString());
-            }
-         } else if (typ1 == typeof(string)) {
-            return ((string)obj1).CompareTo(obj2.ToString());
-         } else if (typ1 == typeof(DateTime)) {
-            if (typ2 == typeof(TimeSpan)) {
-               return ((DateTime)obj1).Ticks.CompareTo(((TimeSpan)obj2).Ticks);
-            }
-         } else if (typ1 == typeof(TimeSpan)) {
-            if (typ2 == typeof(DateTime)) {
-               return ((TimeSpan)obj1).Ticks.CompareTo(((DateTime)obj2).Ticks);
-            }
-         }
+         var v1 = cmp1.GetValue(env);
+         var v2 = cmp2.GetValue(env);
+         return v1.GetType().IsNumeric() ?
+            new NumericComparer().Compare(v1, v2) : v1.CompareTo(v2);
      } catch (Exception ex) {
         Log.Ui.error($"Comparison failed: {ex}");
         throw;
      }
-      throw new ArgumentException("Failed to compare obj1 and obj2", nameof(obj1));
-   }
-
-   static int tryCompareNumeric(object numericObj1, object obj2) {
-      var typ2 = obj2.GetType();
-      if (typ2.IsNumeric()) {
-         return new NumericComparer().Compare(numericObj1, obj2);
-      } else if (typ2.IsEnum) {
-         var undTyp2 = typ2.GetEnumUnderlyingType();
-         if (undTyp2 == typeof(byte)) {
-            return new NumericComparer().Compare(numericObj1, (byte)obj2);
-         }
-         if (undTyp2 == typeof(short)) {
-            return new NumericComparer().Compare(numericObj1, (short)obj2);
-         }
-         if (undTyp2 == typeof(int)) {
-            return new NumericComparer().Compare(numericObj1, (int)obj2);
-         }
-         if (undTyp2 == typeof(long)) {
-            return new NumericComparer().Compare(numericObj1, (long)obj2);
-         }
-      }
-      throw new ArgumentException("Failed to compare numeric obj1 and obj2", nameof(obj2));
   }
 }
@@ -1,11 +1,19 @@
 namespace Bts.BooleanExpressions;

+using bts;
+
 class BooleanExpression : IBooleanExpression {
   readonly Func<IDictionary<string, object?>, bool> evaluate;

   public BooleanExpression(Func<IDictionary<string, object?>, bool> evaluate) =>
      this.evaluate = evaluate;

-   public bool Evaluate(IDictionary<string, object?> env) =>
-      evaluate(env);
+   public bool Evaluate(IDictionary<string, object?> env) {
+      try {
+         return evaluate(env);
+      } catch (Exception ex) {
+         Log.assert(false, $"BooleanExpression.Evaluate failed: {ex}");
+         throw;
+      }
+   }
 }
@@ -47,6 +47,11 @@ IsOfType                 '/'

 %%

+{StringConstant} {
+   yylval.String = yytext.Substring(1, yytext.Length - 2).Replace(@"\'", "'");
+   return (int)Token.STRING_CONSTANT;
+} 
+
 {BooleanConstant} {
   yylval.Boolean = yytext.ToLower() switch {
      "true" => true,
@@ -57,11 +62,6 @@ IsOfType                 '/'
   return (int)Token.BOOLEAN_CONSTANT;
 }

-{StringConstant} {
-   yylval.String = yytext.Substring(1, yytext.Length - 2).Replace(@"\'", "'");
-   return (int)Token.STRING_CONSTANT;
-} 
-
 {NullConstant} {
   yylval.Null = DBNull.Value;
   return (int)Token.NULL_CONSTANT;
@@ -1,30 +1,20 @@
 <Project Sdk="Microsoft.NET.Sdk">

  <PropertyGroup>
-    <TargetFramework>net8.0</TargetFramework>
+    <TargetFramework>net7.0</TargetFramework>
    <ImplicitUsings>enable</ImplicitUsings>
    <Nullable>enable</Nullable>
  </PropertyGroup>

  <ItemGroup>
    <PackageReference Include="Google.Protobuf" Version="3.24.3" />
-    <PackageReference Include="YaccLexTools" Version="1.2.3" />
+    <PackageReference Include="YaccLexTools" Version="1.2.0" />
  </ItemGroup>

-  <Choose>
-    <When Condition="'$(UseProjectRefs)' == 'true'">
-      <ItemGroup>
-        <ProjectReference Include="..\ExpressionCore\ExpressionCore.csproj" />
-        <ProjectReference Include="..\..\cs\Bts.Spark.Core\Bts.Spark.Core.csproj" />
-      </ItemGroup>
-    </When>
-    <Otherwise>
-      <ItemGroup>
-        <PackageReference Include="ExpressionCore" Version="$(SparkVersion)" />
-        <PackageReference Include="Bts.Spark.Core" Version="$(SparkVersion)" />
-      </ItemGroup>
-    </Otherwise>
-  </Choose>
+  <ItemGroup>
+    <ProjectReference Include="..\ExpressionCore\ExpressionCore.csproj" />
+    <ProjectReference Include="..\..\client\spark_core\spark_core.csproj" />
+  </ItemGroup>
  
  <ItemGroup>
    <Scanner Include="BooleanExpressionTokens.lex" />
@@ -24,6 +24,8 @@ namespace QUT.GplexBuffers
        public BufferException(string message) : base(message) { }
        public BufferException(string message, Exception innerException)
            : base(message, innerException) { }
+        protected BufferException(SerializationInfo info, StreamingContext context)
+            : base(info, context) { }
    }

    internal abstract class ScanBuff
@@ -58,10 +60,12 @@ namespace QUT.GplexBuffers
            return new BuildBuffer(source);
        }

+#if (!BYTEMODE)
        public static ScanBuff GetBuffer(Stream source, int fallbackCodePage)
        {
            return new BuildBuffer(source, fallbackCodePage);
        }
+#endif // !BYTEMODE
 #endif // !NOFILES
    }

@@ -349,15 +353,17 @@ namespace QUT.GplexBuffers
        {
            FileStream fStrm = (stream as FileStream);
            if (fStrm != null) FileName = fStrm.Name;
-            NextBlk = BlockReaderFactory.Get(stream);
+            NextBlk = BlockReaderFactory.Raw(stream);
        }

+#if (!BYTEMODE)
        public BuildBuffer(Stream stream, int fallbackCodePage)
        {
            FileStream fStrm = (stream as FileStream);
            if (fStrm != null) FileName = fStrm.Name;
            NextBlk = BlockReaderFactory.Get(stream, fallbackCodePage);
        }
+#endif

        /// <summary>
        /// Marks a conservative lower bound for the buffer,
@@ -428,19 +434,43 @@ namespace QUT.GplexBuffers
    //
    internal static class BlockReaderFactory
    {
+        public static BlockReader Raw(Stream stream)
+        {
+            return delegate(char[] block, int index, int number)
+            {
+                byte[] b = new byte[number];
+                int count = stream.Read(b, 0, number);
+                int i = 0;
+                int j = index;
+                for (; i < count; i++, j++)
+                    block[j] = (char)b[i];
+                return count;
+            };
+        }

-        public static BlockReader Get(Stream stream, int fallbackCodePage = -2)
+#if (!BYTEMODE)
+        public static BlockReader Get(Stream stream, int fallbackCodePage)
        {
            Encoding encoding;
            int preamble = Preamble(stream);

            if (preamble != 0)  // There is a valid BOM here!
                encoding = Encoding.GetEncoding(preamble);
-            else if (fallbackCodePage >= 0) // Anything but "guess"
+            else if (fallbackCodePage == -1) // Fallback is "raw" bytes
+                return Raw(stream);
+            else if (fallbackCodePage != -2) // Anything but "guess"
                encoding = Encoding.GetEncoding(fallbackCodePage);
            else // This is the "guess" option
-                encoding = GuessEncoding(stream);
-
+            {
+                int guess = new Guesser(stream).GuessCodePage();
+                stream.Seek(0, SeekOrigin.Begin);
+                if (guess == -1) // ==> this is a 7-bit file
+                    encoding = Encoding.ASCII;
+                else if (guess == 65001)
+                    encoding = Encoding.UTF8;
+                else             // ==> use the machine default
+                    encoding = Encoding.Default;
+            }
            StreamReader reader = new StreamReader(stream, encoding);
            return reader.Read;
        }
@@ -458,14 +488,6 @@ namespace QUT.GplexBuffers
            int b2 = stream.ReadByte();
            if (b0 == 0xef && b1 == 0xbb && b2 == 0xbf)
                return 65001; // UTF8
-
-            int b3 = stream.ReadByte();
-            // Check for UTF-32 BOM (Byte Order Mark)
-            if (b0 == 0x00 && b1 == 0x00 && b2 == 0xFE && b3 == 0xFF)
-                return 12001; // UTF-32BE
-            if (b0 == 0xFF && b1 == 0xFE && b2 == 0x00 && b3 == 0x00)
-                return 12000; // UTF-32LE
-
            //
            // There is no unicode preamble, so we
            // return denoter for the machine default.
@@ -473,150 +495,7 @@ namespace QUT.GplexBuffers
            stream.Seek(0, SeekOrigin.Begin);
            return 0;
        }
-
-        private static Encoding GuessEncoding(Stream stream)
-        {
-            stream.Seek(0, SeekOrigin.Begin);
-            if (IsUtf16(stream, out Encoding encoding))
-            {
-                stream.Seek(0, SeekOrigin.Begin);
-                return encoding;
-            }
-
-            stream.Seek(0, SeekOrigin.Begin);
-            if (IsUtf8(stream))
-            {
-                stream.Seek(0, SeekOrigin.Begin);
-                return Encoding.UTF8;
-            }
-
-            stream.Seek(0, SeekOrigin.Begin);
-            if (IsAscii(stream))
-            {
-                stream.Seek(0, SeekOrigin.Begin);
-                return Encoding.ASCII;
-            }
-
-#if !NET462_OR_GREATER
-            stream.Seek(0, SeekOrigin.Begin);
-            if (IsLatin1(stream))
-            {
-                stream.Seek(0, SeekOrigin.Begin);
-                return Encoding.Latin1;
-            }
-#endif
-            stream.Seek(0, SeekOrigin.Begin);
-            return Encoding.Default;
-        }
-
-        private static bool IsUtf8(Stream stream)
-        {
-            int b;
-            while ((b = stream.ReadByte()) != -1)
-            {
-                if ((b & 0x80) == 0) // 0xxxxxxx
-                {
-                    continue;
-                }
-                else if ((b & 0xE0) == 0xC0) // 110xxxxx 10xxxxxx
-                {
-                    if (!IsValidUtf8ContinuationByte(stream)) return false;
-                }
-                else if ((b & 0xF0) == 0xE0) // 1110xxxx 10xxxxxx 10xxxxxx
-                {
-                    if (!IsValidUtf8ContinuationByte(stream) || !IsValidUtf8ContinuationByte(stream)) return false;
-                }
-                else if ((b & 0xF8) == 0xF0) // 11110xxx 10xxxxxx 10xxxxxx 10xxxxxx
-                {
-                    if (!IsValidUtf8ContinuationByte(stream) || !IsValidUtf8ContinuationByte(stream) || !IsValidUtf8ContinuationByte(stream)) return false;
-                }
-                else
-                {
-                    return false;
-                }
-            }
-            return true;
-        }
-
-        private static bool IsValidUtf8ContinuationByte(Stream stream)
-        {
-            int b = stream.ReadByte();
-            return b != -1 && (b & 0xC0) == 0x80; // 10xxxxxx
-        }
-
-        private static bool IsUtf16(Stream stream, out Encoding encoding)
-        {
-            encoding = Encoding.Default;
-
-            if (stream.Length >= 2)
-            {
-                // Read the first two bytes
-                int b0 = stream.ReadByte();
-                int b1 = stream.ReadByte();
-
-                // Check for UTF-16 BOM (Byte Order Mark)
-                if (b0 == 0xFF && b1 == 0xFE)
-                {
-                    encoding = Encoding.Unicode;
-                    return true; // UTF-16LE
-                }
-                if (b0 == 0xFE && b1 == 0xFF)
-                {
-                    encoding = Encoding.BigEndianUnicode;
-                    return true; // UTF-16BE
-                }
-
-                // Reset the stream position
-                stream.Seek(0, SeekOrigin.Begin);
-
-                // Check for common UTF-16 patterns
-                byte[] buffer = new byte[2];
-                while (stream.Read(buffer, 0, 2) == 2)
-                {
-                    if (buffer[0] == 0x00 && buffer[1] != 0x00)
-                    {
-                        encoding = Encoding.BigEndianUnicode;
-                        return true; // Likely UTF-16BE
-                    }
-                    if (buffer[0] != 0x00 && buffer[1] == 0x00)
-                    {
-                        encoding = Encoding.Unicode;
-                        return true; // Likely UTF-16LE
-                    }
-                }
-            }
-
-            return false;
-        }
-
-        private static bool IsAscii(Stream stream)
-        {
-            int b;
-            while ((b = stream.ReadByte()) != -1)
-            {
-                // Latin1 includes byte values from 0x00 to 0xFF
-                if (b > 0x7F)
-                {
-                    return false;
-                }
-            }
-            return true;
-        }
-
-        private static bool IsLatin1(Stream stream)
-        {
-            int b;
-            while ((b = stream.ReadByte()) != -1)
-            {
-                // Latin1 includes byte values from 0x00 to 0xFF
-                if (b > 0xFF)
-                {
-                    return false;
-                }
-            }
-            return true;
-        }
-
+#endif // !BYTEMODE
    }
 #endif // !NOFILES
    #endregion Buffer classes
@@ -661,6 +540,180 @@ namespace QUT.GplexBuffers
            return 0;
        }
    }
+#region guesser
+#if (!BYTEMODE)
+    // ==============================================================
+    // ============          Encoding Guesser           =============
+    // ==============================================================
+
+    /// <summary>
+    /// This class provides a simple finite state automaton that
+    /// scans the file looking for (1) valid UTF-8 byte patterns,
+    /// (2) bytes >= 0x80 which are not part of a UTF-8 sequence.
+    /// The method then guesses whether it is UTF-8 or maybe some 
+    /// local machine default encoding.  This works well for the
+    /// various Latin encodings.
+    /// </summary>
+    internal class Guesser
+    {
+        ScanBuff buffer;
+
+        public int GuessCodePage() { return Scan(); }
+
+        const int maxAccept = 10;
+        const int initial = 0;
+        const int eofNum = 0;
+        const int goStart = -1;
+        const int INITIAL = 0;
+        const int EndToken = 0;
+
+        #region user code
+        /* 
+         *  Reads the bytes of a file to determine if it is 
+         *  UTF-8 or a single-byte code page file.
+         */
+        public long utfX;
+        public long uppr;
+        #endregion user code
+
+        int state;
+        int currentStart = startState[0];
+        int code;
+
+        #region ScannerTables
+        static int[] startState = new int[] { 11, 0 };
+
+        #region CharacterMap
+        static sbyte[] map = new sbyte[256] {
+/*     '\0' */ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 
+/*   '\x10' */ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 
+/*   '\x20' */ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 
+/*      '0' */ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 
+/*      '@' */ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 
+/*      'P' */ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 
+/*      '`' */ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 
+/*      'p' */ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 
+/*   '\x80' */ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 
+/*   '\x90' */ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 
+/*   '\xA0' */ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 
+/*   '\xB0' */ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 
+/*   '\xC0' */ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 
+/*   '\xD0' */ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 
+/*   '\xE0' */ 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 
+/*   '\xF0' */ 4, 4, 4, 4, 4, 4, 4, 4, 5, 5, 5, 5, 5, 5, 5, 5 };
+        #endregion
+
+        static sbyte[][] nextState = new sbyte[][] {
+            new sbyte[] {0, 0, 0, 0, 0, 0},
+            new sbyte[] {-1, -1, 10, -1, -1, -1},
+            new sbyte[] {-1, -1, -1, -1, -1, -1},
+            new sbyte[] {-1, -1, 8, -1, -1, -1},
+            new sbyte[] {-1, -1, 5, -1, -1, -1},
+            new sbyte[] {-1, -1, 6, -1, -1, -1},
+            new sbyte[] {-1, -1, 7, -1, -1, -1},
+            null,
+            new sbyte[] {-1, -1, 9, -1, -1, -1},
+            null,
+            null,
+            new sbyte[] {-1, 1, 2, 3, 4, 2}
+        };
+
+
+        [SuppressMessage("Microsoft.Performance", "CA1810:InitializeReferenceTypeStaticFieldsInline")]
+        // Reason for suppression: cannot have self-reference in array initializer.
+        static Guesser()
+        {
+            nextState[7] = nextState[2];
+            nextState[9] = nextState[2];
+            nextState[10] = nextState[2];
+        }
+
+        int NextState()
+        {
+            if (code == ScanBuff.EndOfFile)
+                return eofNum;
+            else
+                return nextState[state][map[code]];
+        }
+        #endregion
+
+        public Guesser(System.IO.Stream file) { SetSource(file); }
+
+        public void SetSource(System.IO.Stream source)
+        {
+            this.buffer = new BuildBuffer(source);
+            code = buffer.Read();
+        }
+
+        int Scan()
+        {
+            for (; ; )
+            {
+                int next;
+                state = currentStart;
+                while ((next = NextState()) == goStart)
+                    code = buffer.Read();
+
+                state = next;
+                code = buffer.Read();
+
+                while ((next = NextState()) > eofNum)
+                {
+                    state = next;
+                    code = buffer.Read();
+                }
+                if (state <= maxAccept)
+                {
+                    #region ActionSwitch
+#pragma warning disable 162
+                    switch (state)
+                    {
+                        case eofNum:
+                            switch (currentStart)
+                            {
+                                case 11:
+                                    if (utfX == 0 && uppr == 0) return -1; /* raw ascii */
+                                    else if (uppr * 10 > utfX) return 0;   /* default code page */
+                                    else return 65001;                     /* UTF-8 encoding */
+                                    break;
+                            }
+                            return EndToken;
+                        case 1: // Recognized '{Upper128}',	Shortest string "\xC0"
+                        case 2: // Recognized '{Upper128}',	Shortest string "\x80"
+                        case 3: // Recognized '{Upper128}',	Shortest string "\xE0"
+                        case 4: // Recognized '{Upper128}',	Shortest string "\xF0"
+                            uppr++;
+                            break;
+                        case 5: // Recognized '{Utf8pfx4}{Utf8cont}',	Shortest string "\xF0\x80"
+                            uppr += 2;
+                            break;
+                        case 6: // Recognized '{Utf8pfx4}{Utf8cont}{2}',	Shortest string "\xF0\x80\x80"
+                            uppr += 3;
+                            break;
+                        case 7: // Recognized '{Utf8pfx4}{Utf8cont}{3}',	Shortest string "\xF0\x80\x80\x80"
+                            utfX += 3;
+                            break;
+                        case 8: // Recognized '{Utf8pfx3}{Utf8cont}',	Shortest string "\xE0\x80"
+                            uppr += 2;
+                            break;
+                        case 9: // Recognized '{Utf8pfx3}{Utf8cont}{2}',	Shortest string "\xE0\x80\x80"
+                            utfX += 2;
+                            break;
+                        case 10: // Recognized '{Utf8pfx2}{Utf8cont}',	Shortest string "\xC0\x80"
+                            utfX++;
+                            break;
+                        default:
+                            break;
+                    }
+#pragma warning restore 162
+                    #endregion
+                }
+            }
+        }
+    } // end class Guesser
+    
+#endif // !BYTEMODE
+#endregion
 #endif // !NOFILES

 // End of code copied from embedded resource
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">

  <PropertyGroup>
-    <TargetFramework>net8.0</TargetFramework>
+    <TargetFramework>net7.0</TargetFramework>
    <ImplicitUsings>enable</ImplicitUsings>
    <Nullable>enable</Nullable>
  </PropertyGroup>
@@ -10,20 +10,11 @@
    <PackageReference Include="YaccLexTools" Version="1.2.2" />
  </ItemGroup>

-  <Choose>
-    <When Condition="'$(UseProjectRefs)' == 'true'">
-      <ItemGroup>
-        <ProjectReference Include="..\DataStreamCore\DataStreamCore.csproj" />
-        <ProjectReference Include="..\ExpressionCore\ExpressionCore.csproj" />
-      </ItemGroup>
-    </When>
-    <Otherwise>
-      <ItemGroup>
-        <PackageReference Include="DataStreamCore" Version="$(SparkVersion)" />
-        <PackageReference Include="ExpressionCore" Version="$(SparkVersion)" />
-      </ItemGroup>
-    </Otherwise>
-  </Choose>
+  <ItemGroup>
+    <ProjectReference Include="..\DataStreamCore\DataStreamCore.csproj" />
+    <ProjectReference Include="..\ExpressionCore\ExpressionCore.csproj" />
+    <ProjectReference Include="..\..\client\spark_core\spark_core.csproj" />
+  </ItemGroup>

  <ItemGroup Label="ColumnExpression">
    <Scanner Include="ColumnExpressionTokens.lex" />
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">

  <PropertyGroup>
-    <TargetFramework>net8.0</TargetFramework>
+    <TargetFramework>net7.0</TargetFramework>
    <ImplicitUsings>enable</ImplicitUsings>
    <Nullable>enable</Nullable>
  </PropertyGroup>
@@ -10,20 +10,11 @@
    <PackageReference Include="YaccLexTools" Version="1.2.2" />
  </ItemGroup>

-  <Choose>
-    <When Condition="'$(UseProjectRefs)' == 'true'">
-      <ItemGroup>
-        <ProjectReference Include="..\DataStreamCore\DataStreamCore.csproj" />
-        <ProjectReference Include="..\ExpressionCore\ExpressionCore.csproj" />
-      </ItemGroup>
-    </When>
-    <Otherwise>
-      <ItemGroup>
-        <PackageReference Include="DataStreamCore" Version="$(SparkVersion)" />
-        <PackageReference Include="ExpressionCore" Version="$(SparkVersion)" />
-      </ItemGroup>
-    </Otherwise>
-  </Choose>
+  <ItemGroup>
+    <ProjectReference Include="..\DataStreamCore\DataStreamCore.csproj" />
+    <ProjectReference Include="..\ExpressionCore\ExpressionCore.csproj" />
+    <ProjectReference Include="..\..\client\spark_core\spark_core.csproj" />
+  </ItemGroup>

  <ItemGroup Label="ColumnSortExpression">
    <Scanner Include="ColumnSortExpressionTokens.lex" />
@@ -1,27 +1,21 @@
 <Project Sdk="Microsoft.NET.Sdk">

  <PropertyGroup>
-    <TargetFramework>net8.0</TargetFramework>
+    <TargetFramework>net7.0</TargetFramework>
    <ImplicitUsings>enable</ImplicitUsings>
    <Nullable>enable</Nullable>
  </PropertyGroup>

  <ItemGroup>
+    <PackageReference Include="Google.Protobuf" Version="3.24.3" />
    <PackageReference Include="YaccLexTools" Version="1.2.2" />
  </ItemGroup>

-  <Choose>
-    <When Condition="'$(UseProjectRefs)' == 'true'">
-      <ItemGroup>
-        <ProjectReference Include="..\ExpressionCore\ExpressionCore.csproj" />
-      </ItemGroup>
-    </When>
-    <Otherwise>
-      <ItemGroup>
-        <PackageReference Include="ExpressionCore" Version="$(SparkVersion)" />
-      </ItemGroup>
-    </Otherwise>
-  </Choose>
+  <ItemGroup>
+    <ProjectReference Include="..\DataStreamCore\DataStreamCore.csproj" />
+    <ProjectReference Include="..\ExpressionCore\ExpressionCore.csproj" />
+    <ProjectReference Include="..\..\client\spark_core\spark_core.csproj" />
+  </ItemGroup>

  <ItemGroup Label="ColumnMapExpression">
    <Scanner Include="ColumnMapExpressionTokens.lex" />
@@ -1,11 +0,0 @@
-namespace bts.BlueOrb {
-   using BCG;
-
-   [DataStreamUserRespresentation("AddColumnsStream")]
-   public class AddColumnsStream: ViewStream {
-      public AddColumnsStream(ViewStream parent_str, string add_col_expr) {
-         ViewStream rs = new BCG.AddColumnsStream(parent_str, add_col_expr);
-         mySetRealSource(rs);
-      }
-   }
-}
@@ -1,18 +0,0 @@
-namespace bts.BlueOrb {
-   using System;
-
-   using BCG;
-
-   [DataStreamUserRespresentation("CSVReaderStream")]
-   public class CSVReaderStream : ViewStream {
-      public CSVReaderStream(string file_name)
-         : this(file_name, false) { }
-      public CSVReaderStream(string file_name, bool guess_schema) {
-         ViewStream rs = new BCG.CSVReaderStream(file_name);
-         if (guess_schema) {
-            rs = new SchemaGuesserStream(rs);
-         }
-         mySetRealSource(rs);
-      }
-   }
-}
@@ -1,13 +0,0 @@
-namespace bts.BlueOrb {
-   using BCG;
-
-   using System;
-
-   [DataStreamUserRespresentation("CSVSaverStream")]
-   public class CSVSaverStream: ViewStream {
-      public CSVSaverStream(ViewStream parent_str, string file_name) {
-         BCG.CSVSaverStream rs = new BCG.CSVSaverStream(parent_str, file_name, true, Int32.MaxValue, false);
-         mySetRealSource(rs);
-      }
-   }
-}
@@ -1,43 +0,0 @@
-namespace BCG {
-   [DataStreamUserRespresentation("CountStream")]
-   public class CountStream : ViewStream {
-      IDataPacket? myLastFiredDataPacket;
-      private IBlueTableSchema mySchema = new BlueTableSchema("count",
-         new ColumnInfo("id", 0, typeof(int)),
-         new ColumnInfo("count", 1, typeof(int)));
-      private int myId = 0;
-      private ViewStream myVS;
-
-      public CountStream(ViewStream vs) {
-         myVS = vs;
-      }
-
-      public CountStream(string tableName)
-         : this(new TableStream(tableName)) { }
-
-      protected override void myOnFirstSubscriber() {
-         myVS.onChange += new ChangeDelegate(myHandleChanges);
-      }
-      protected override void myOnLastSubscriber() {
-         myVS.onChange -= new ChangeDelegate(myHandleChanges);
-      }
-
-      private void myHandleChanges(object newValue) {
-         myFireEvent(
-            myLastFiredDataPacket =
-               myLastFiredDataPacket == null ?
-                  new DataPacket(myGetRows(newValue, ++myId), myGetRows(newValue, myId),
-                  new BlueTable(mySchema))
-                  :
-                  new DataPacket(myGetRows(newValue, ++myId), myGetRows(newValue, myId),
-                  myLastFiredDataPacket.newRows)
-            );
-      }
-
-      private IBlueRowCollection myGetRows(object dp, int id) {
-         BlueTable retVal = new BlueTable(mySchema);
-         retVal.addRow(new BlueRow(mySchema, id, ((IDataPacket)dp).newRows.Count));
-         return retVal;
-      }
-   }
-}
@@ -1,40 +0,0 @@
-namespace bts.BlueOrb {
-   using bts;
-
-   using BCG;
-
-   using System;
-   [DataStreamUserRespresentation("DateTimeExpanderStream")]
-   public class DateTimeExpanstionStream : ViewStream {
-      public DateTimeExpanstionStream(ViewStream parent_stream, string inp_col) {
-         Func<IBlueTableSchema, IBlueTableSchema> get_schema = (s) => {
-            IBlueTableSchema rv = s.add_column(System.TypeCode.DateTime, $"{inp_col}_date");
-            rv = rv.add_column(System.TypeCode.String, $"{inp_col}_day_of_week");
-            rv = rv.add_column(System.TypeCode.Int32, $"{inp_col}_day_of_month");
-            rv = rv.add_column(System.TypeCode.Int32, $"{inp_col}_month");
-            rv = rv.add_column(System.TypeCode.Int32, $"{inp_col}_hour");
-            rv = rv.add_column(System.TypeCode.Int32, $"{inp_col}_minute");
-            rv = rv.add_column(System.TypeCode.Int32, $"{inp_col}_seconds_of_day");
-            rv = rv.add_column(System.TypeCode.Int32, $"{inp_col}_year");
-            return rv;
-         };
-         ViewStream rs = new MapStream(parent_stream,
-         s => get_schema(s),
-         r => {
-            DateTime dt = r.get_datetime(inp_col);
-            IBlueTableSchema s = get_schema(r.schema);
-            MutableBlueRow rv = new MutableBlueRow(s, r);
-            rv.setValue($"{inp_col}_date", dt.Date);
-            rv.setValue($"{inp_col}_day_of_week", dt.DayOfWeek.ToString());
-            rv.setValue($"{inp_col}_day_of_month", dt.Day);
-            rv.setValue($"{inp_col}_month", dt.Date.Month);
-            rv.setValue($"{inp_col}_hour", dt.Hour);
-            rv.setValue($"{inp_col}_minute", dt.Minute);
-            rv.setValue($"{inp_col}_seconds_of_day", (dt - dt.Date).TotalSeconds);
-            rv.setValue($"{inp_col}_year", dt.Date.Year);
-            return rv;
-         });
-         mySetRealSource(rs);
-      }
-   }
-}
@@ -1,164 +0,0 @@
-namespace bts.BlueOrb {
-   using BCG;
-
-   using Bts.DataStreamCore;
-
-   using System;
-   using System.Text.RegularExpressions;
-
-   [DataStreamUserRespresentation("FilterStream")]
-   public class FilterStream : ViewStream {
-      public class RegExpFilter : IStreamFilter {
-         private Regex[] myRegExps;
-         private string[] myCols;
-
-         public RegExpFilter(string col, string regExp)
-            : this(new string[] { col }, new string[] { regExp }) { }
-
-         public RegExpFilter(string[] cols, string[] regExps) {
-            myCols = cols;
-            myRegExps = new Regex[regExps.Length];
-            for (int i = 0; i < regExps.Length; i++)
-               myRegExps[i] = new Regex(regExps[i]);
-         }
-
-         #region IStreamFilter Members
-         public bool filter(IBlueRow dr) {
-            for (int i = 0; i < myCols.Length; i++) {
-               var val = dr[myCols[i]];
-               var str = val is DBNull
-                  ? string.Empty
-                  : (val?.ToString() ?? string.Empty);
-               if (!myRegExps[i].IsMatch(str)) {
-                  return false;
-               }
-            }
-            return true;
-         }
-         #endregion
-      }
-      BlueTable? myLastFiredRows;
-      IBlueRowCollection? myLastReceivedRows;
-      private IStreamFilter myFilter;
-      private ViewStream myParentStream;
-      private string myFilterString;
-
-      #region constructors
-      public delegate bool OnFilter(IBlueRow r);
-      private class OnFilterWrapper : IStreamFilter {
-         public OnFilterWrapper(OnFilter f) { this.f = f; }
-
-         public bool filter(IBlueRow dr) { return f(dr); }
-
-         private OnFilter f;
-      }
-      public FilterStream(ViewStream vs, OnFilter f)
-         : this(vs, new OnFilterWrapper(f)) { }
-
-
-      public FilterStream(ViewStream vs, IStreamFilter filter) {
-         myParentStream = vs;
-         myFilter = filter;
-         myFilterString = filter.ToString() ?? string.Empty;
-         if (filter is IDynamicStreamFilter dynFilter) {
-            dynFilter.onFilterChange += myHandleFilterChange;
-         }
-      }
-
-      public FilterStream(ViewStream vs, string filterExpression)
-         : this(vs, new BooleanExpressionFilter(filterExpression)) {
-         myFilterString = filterExpression;
-      }
-
-      public FilterStream(ViewStream vs, string col, string regExp)
-         : this(vs, new RegExpFilter(col, regExp)) {
-         myFilterString = col + " , " + regExp;
-      }
-
-      public FilterStream(ViewStream vs)
-         : this(vs, new BinaryFilter(true)) {
-         myFilterString = true.ToString();
-      }
-      #endregion
-
-      #region overridden methods
-      protected override void myOnFirstSubscriber() { myParentStream.onChange += new ChangeDelegate(myHandleCallbacks); }
-
-      protected override void myOnLastSubscriber() {
-         myLastFiredRows = null;
-         myParentStream.onChange -= new ChangeDelegate(myHandleCallbacks);
-      }
-
-      protected override void myFireEvent(object o) {
-         var dp = (IDataPacket)o;
-         if (myLastValue == null || dp.addedRows.Count + dp.deletedRows.Count > 0)
-            base.myFireEvent(o);
-      }
-      #endregion
-
-      private void myHandleCallbacks(object newValue) {
-         DataPacket retVal;
-         IDataPacket arrivedPacket = (IDataPacket)newValue;
-         myLastReceivedRows = arrivedPacket.newRows;
-         if (myLastFiredRows != null) {
-            retVal = new DataPacket(myLastFiredRows, new BlueTable(myLastFiredRows.schema),
-               new BlueTable(myLastFiredRows.schema));
-            var deletedRows = new Lazy<BlueTable>(() => (BlueTable)retVal.deletedRows);
-            foreach (IBlueRow r in arrivedPacket.deletedRows) {
-               if (myLastFiredRows.containsID(r.Id())) {
-                  myLastFiredRows.deleteRow(r);
-                  deletedRows.Value.addRow(r);
-               }
-            }
-            var addedRows = new Lazy<BlueTable>(() => (BlueTable)retVal.addedRows);
-            foreach (IBlueRow r in arrivedPacket.addedRows) {
-               if (myFilter.filter(r)) {
-                  myLastFiredRows.addRow(r);
-                  addedRows.Value.addRow(r);
-               }
-            }
-         } else {
-            myLastFiredRows = new BlueTable(arrivedPacket.Schema);
-            retVal = new DataPacket(myLastFiredRows, myLastFiredRows, new BlueTable(myLastFiredRows.schema));
-            foreach (IBlueRow r in arrivedPacket.newRows)
-               if (myFilter.filter(r))
-                  myLastFiredRows.addRow(r);
-         }
-         myFireEvent(retVal);
-      }
-
-      public IStreamFilter filter {
-         set {
-            {
-               myFilter = value;
-               if (numberOfSubscribers > 0) {
-                  if (myLastReceivedRows != null) {
-                     BlueTable nRows = new BlueTable(myLastReceivedRows.schema);
-                     foreach (IBlueRow r in myLastReceivedRows)
-                        if (myFilter.filter(r))
-                           nRows.addRow(r);
-                     IBlueRowCollection dRows = new BlueTable(nRows.schema),
-                        aRows = new BlueTable(nRows.schema);
-                     BlueDataUtility.computeDifferences(nRows, myLastFiredRows, out dRows, out aRows);
-                     myLastFiredRows = nRows;
-                     myFireEvent(new DataPacket(nRows, aRows, dRows));
-                  }
-               }
-            }
-         }
-         get {            
-               return myFilter;
-         }
-      }
-
-      //public string filterString { set { filter = new BooleanExpressionFilter(value); } }
-
-      public override string ToString() {
-         return GetType().ToString() + " " + myFilterString;
-      }
-
-      private void myHandleFilterChange() {
-         filter = myFilter;
-      }
-   }
-}
@@ -1,142 +0,0 @@
-using BCG;
-
-using Bts.DataStreamCore;
-
-using Spark.Core.Diagnostics;
-
-using System;
-using System.Collections.Generic;
-using System.Diagnostics;
-using System.Linq;
-
-namespace bts.BlueOrb {
-   [DataStreamUserRespresentation("GroupByStream")]
-   public class GroupByStream : ViewStream {
-
-      public interface INonIncGroupByEvaluator {
-         // grouped_rows
-         IBlueRowCollection? evaluate(IDictionary<int, List<IBlueRow>> grouped_rows);
-         string[]? get_group_by_cols();
-      }
-
-      private class DelNonIncGroupByEvaluator : INonIncGroupByEvaluator {
-         Func<string[]?> _groupby_cols_func;
-         Func<List<IBlueRow>, List<IBlueRow>> _evaluate_func;
-         public DelNonIncGroupByEvaluator(Func<string[]?> groupby_cols_func,
-                                          Func<List<IBlueRow>, List<IBlueRow>> evaluate_func) {
-            _groupby_cols_func = groupby_cols_func;
-            _evaluate_func = evaluate_func;
-         }
-
-         public IBlueRowCollection? evaluate(IDictionary<int, List<IBlueRow>> grouped_rows) {
-            BlueTable? rv = null;
-            foreach (var kv in grouped_rows) {
-               List<IBlueRow> g_rows = kv.Value;
-               List<IBlueRow> out_rows = _evaluate_func.Invoke(g_rows);
-               if (out_rows != null && out_rows.Count > 0) {
-                  rv = rv ?? new BlueTable(out_rows.ElementAt(0).schema);
-               }
-               if (rv != null)
-                  rv.addRows(out_rows);
-            }
-            return rv;
-         }
-
-         public string[]? get_group_by_cols() {
-            return _groupby_cols_func();
-         }
-
-      }
-      ViewStream? _main_stream;
-      INonIncGroupByEvaluator? _groupby_func;
-      BlueRowHasher? _row_hasher;
-      string[]? _groupby_cols;
-      private Stopwatch _timer = new();
-      private int _n_total_fires = 0, _n_expensive_fires = 0;
-      IDisposable? subscription;
-
-      public GroupByStream(ViewStream main_stream, INonIncGroupByEvaluator groupby_func) {
-         _main_stream = main_stream;
-         _groupby_func = groupby_func;
-         _groupby_cols = _groupby_func.get_group_by_cols();
-         _row_hasher = new BlueRowHasher(_groupby_cols == null ? 0 : _groupby_cols.Length);
-      }
-
-      public GroupByStream(ViewStream main_stream, Func<string[]?> groupby_cols_func,
-                                 Func<List<IBlueRow>, List<IBlueRow>> evaluate_func)
-                                 : this(main_stream, new DelNonIncGroupByEvaluator(groupby_cols_func, evaluate_func)) { }
-
-      public GroupByStream(ViewStream parent_str, string groupby_cols, string standard_group_by_text)
-      : this(parent_str, groupby_cols, standard_group_by_text, String.Empty) { }
-
-      // this is the main constructor that does everything
-      public GroupByStream(ViewStream parent_str, string groupby_cols, string standard_group_by_ops, string optional_sort_col) {
-         MultiRowOpHelper std_group_by = MultiRowOpHelper.parse_ops(standard_group_by_ops);
-         Func<List<IBlueRow>, List<IBlueRow>> evaluate_func = (group_rows) => {
-            if (!String.IsNullOrEmpty(optional_sort_col))
-               group_rows.Sort((r1, r2) => BlueDataUtility.compare_rows(r2, r1, optional_sort_col));
-            // this si where the group by aggregation happens
-            IBlueRow? rv = MultiRowOpHelper.group_by_compute(group_rows, std_group_by);
-            if (rv == null)
-               return new List<IBlueRow>();
-            return new IBlueRow[] { rv }.ToList();
-         };
-         ViewStream rs = new GroupByStream(parent_str, groupby_cols_func, evaluate_func);
-         mySetRealSource(rs);
-
-         string[]? groupby_cols_func() {
-            if (string.IsNullOrEmpty(groupby_cols)) {
-               return null;
-            }
-            return groupby_cols.Split(',').Select(x => x.Trim()).ToArray();
-         }
-      }
-      public GroupByStream(ViewStream parent_str, string standard_group_by_text) :
-      this(parent_str, String.Empty, standard_group_by_text) {
-      }
-
-      protected override void myOnFirstSubscriber() {
-         Log.isnull(subscription);
-         subscription = ExceptionAssert.MemberNotNull(_main_stream).Subscribe(_main_stream_onchange);
-      }
-
-      protected override void myOnLastSubscriber() {
-         subscription?.Dispose();
-         subscription = null;
-      }
-
-      private void _main_stream_onchange(object nv) {
-         Log.notnull(_groupby_func);
-         var dp = (IDataPacket)nv;
-         ///grouping together
-         _timer.Restart();
-         IDictionary<int, List<IBlueRow>> grouped_rows = (_groupby_cols == null || _groupby_cols.Length == 0) ?
-         new Dictionary<int, List<IBlueRow>>() { { 0, dp.newRows.to_list() } } :
-         BlueDataUtility.group_together(dp.newRows, _groupby_cols, ref _row_hasher);
-         _timer.Stop();
-         var groupElapsedMs = _timer.ElapsedMilliseconds;
-         if (groupElapsedMs >= 50) {
-            Log.DataFlow.info($"Time to group {dp.newRows.Count} rows into {grouped_rows.Count} groups: {_timer.ElapsedMilliseconds}ms");
-         }
-         // Log.log(bts.Log.Level.Info, bts.log.Subsystem.gen, String.Format("Time to group {0} rows into {1} groups = {2}", dp.newRows.Count, grouped_rows.Count, _timer.lastIntervalTime));
-         /// reducing
-         _timer.Restart();
-         IBlueRowCollection? total_state = _groupby_func.evaluate(grouped_rows);
-         if (total_state == null)
-            // mayeb returna n empty table ?
-            return;
-         _timer.Stop();
-         var applyElapsedMs = _timer.ElapsedMilliseconds;
-         _n_total_fires++;
-         if (applyElapsedMs >= 50) {
-            _n_expensive_fires++;
-            Log.DataFlow.info(
-               $"Time to evaluate {grouped_rows.Count} groups {_timer.ElapsedMilliseconds}ms, ratio {_n_expensive_fires}/{_n_total_fires}");
-         }
-         var deletedRows = myLastValue is null
-            ? new BlueTable(total_state.schema)
-            : ((IDataPacket)myLastValue).newRows;
-         myFireEvent(new DataPacket(total_state, total_state, deletedRows));
-      }
-   }
-}
@@ -1,204 +0,0 @@
-namespace bts.BlueOrb {
-   using BCG;
-
-   using Bts.DataStream;
-
-   using Spark.Core.Diagnostics;
-
-   using System;
-   using System.Collections.Generic;
-   using System.Diagnostics.CodeAnalysis;
-   using System.Linq;
-
-   using RowHash = System.Int32;
-
-   [DataStreamUserRespresentation("JoinStream")]
-   public class SimpleJoinStream : ViewStream {
-      public class JoinBookkeepingData {
-         // initialized in cons
-         readonly string[] _join_col_names;
-         private readonly BlueRowHasher _hasher;
-         // initialized on first udpate         
-         IBlueTableSchema? _schema;
-         int[]? _join_cols;
-         private IDictionary<RowHash, List<IBlueRow>> _hash_row_map = new Dictionary<RowHash, List<IBlueRow>>();
-
-         public JoinBookkeepingData(ViewStream vs, List<string> join_cols, BlueRowHasher row_hasher) {
-            _join_col_names = join_cols.Where(c => !string.IsNullOrEmpty(c)).ToArray();
-            _hasher = row_hasher;
-         }
-
-         [NotNullIfNotNull(nameof(_schema))]
-         public IBlueTableSchema? schema => _schema;
-
-         public IDictionary<RowHash, List<IBlueRow>> rows => _hash_row_map;
-
-         [MemberNotNull(nameof(_schema))]
-         public IBlueTableSchema RequireSchema() =>
-            ExceptionAssert.MemberNotNull(_schema);
-
-         public List<IBlueRow>? get_matching_rows(int hash) =>
-            _hash_row_map.GetValueOrDefault(hash);
-
-         private RowHash _get_hash(IBlueRow r) {
-            if (_join_cols == null || _join_cols.Length == 0) {
-               return 0;
-            }
-            return _hasher.get_hash(r, _join_cols);
-         }
-
-         public void update_data(IDataPacket dp) {
-            if (!ready) {
-               _schema = dp.newRows.schema;
-               _join_cols = _schema.ResolveIndices(_join_col_names);
-            }
-            _hash_row_map.Clear();
-            foreach (IBlueRow r in dp.newRows) {
-               int hash = _get_hash(r);
-               if (!_hash_row_map.TryGetValue(hash, out var hash_rows)) {
-                  hash_rows = new List<IBlueRow>();
-                  _hash_row_map.Add(hash, hash_rows);
-               }
-               hash_rows.Add(r);
-            }
-         }
-
-         [MemberNotNullWhen(true, nameof(_schema))]
-         public bool ready {
-            get {
-               return _schema != null;
-            }
-         }
-
-      }
-
-      private ViewStream _ls, _rs;
-      private JoinBookkeepingData _ldata, _rdata;
-      IBlueTableSchema? _schema;
-
-      public SimpleJoinStream(ViewStream ls, string ljc, ViewStream rs, string rjc) :
-         this(ViewStreamDatabase.instance, ls, ljc, rs, rjc) { }
-
-      public SimpleJoinStream(ViewStreamDatabase vsd, ViewStream ls, string ljc, ViewStream rs, string rjc) {
-         _ls = ls;
-         _rs = rs;
-         List<string> lj_col_list = ljc.Split(',').Where(x => !String.IsNullOrEmpty(x)).ToList();
-         List<string> rj_col_list = rjc.Split(',').Where(x => !String.IsNullOrEmpty(x)).ToList();
-         Log.assert(lj_col_list.Count == rj_col_list.Count);
-         int n_cols = lj_col_list.Count;
-         BlueRowHasher hasher = new BlueRowHasher(n_cols);
-         _ldata = new JoinBookkeepingData(ls, lj_col_list, hasher);
-         _rdata = new JoinBookkeepingData(rs, rj_col_list, hasher);
-      }
-
-      protected override void myOnFirstSubscriber() {
-         _ls.onChange += _ls_onchange;
-         _rs.onChange += _rs_onchange;
-      }
-
-      private void _ls_onchange(object dp_obj) {
-         var dp = (IDataPacket)dp_obj;
-         _ldata.update_data(dp);
-         _form_and_fire();
-      }
-
-      private void _rs_onchange(object dp_obj) {
-         var dp = (IDataPacket)dp_obj;
-         _rdata.update_data(dp);
-         _form_and_fire();
-      }
-
-      protected override void myOnLastSubscriber() {
-         _ls.onChange -= _ls_onchange;
-         _rs.onChange -= _rs_onchange;
-      }
-
-      [MemberNotNull(nameof(_schema))]
-      private void _build_schema() {
-         if (_schema != null)
-            return;
-         var lschema = Log.notnull(_ldata.schema);
-         var rschema = Log.notnull(_rdata.schema);
-         var cis = new List<ColumnInfo> {
-            new("id", 0, TypeCode.Int32)
-         };
-         foreach (ColumnInfo ci in lschema.columnInfo) {
-            string col_name = rschema.contains_column(ci.colName) ? $"left_{ci.colName}" : ci.colName;
-            cis.Add(new ColumnInfo(col_name, cis.Count, ci.colType));
-         }
-         foreach (ColumnInfo ci in rschema.columnInfo) {
-            string col_name = lschema.contains_column(ci.colName) ? $"right_{ci.colName}" : ci.colName;
-            cis.Add(new ColumnInfo(col_name, cis.Count, ci.colType));
-         }
-         _schema = new BlueTableSchema($"{lschema.tableName}_join_{rschema.tableName}", cis.ToArray());
-      }
-
-      private void _form_and_fire() {
-         if (!_ldata.ready || !_rdata.ready)
-            return;
-         _build_schema();
-         List<object[]> res_rows = new List<object[]>();
-
-         // this is where the join happens
-         foreach (var kv in _ldata.rows) {
-            RowHash hash = kv.Key;
-            List<IBlueRow> l_rows = kv.Value;
-            List<IBlueRow>? r_rows = _rdata.get_matching_rows(hash);
-
-            foreach (IBlueRow lr in l_rows) {
-               if (r_rows != null) {
-                  foreach (IBlueRow r in r_rows) {
-                     object[] rowvals = build_row_array(res_rows.Count, lr);
-                     copy_row(rowvals, r, false);
-                     res_rows.Add(rowvals);
-                  }
-               } else {
-                  object[] rowvals = build_row_array(res_rows.Count, lr);
-                  res_rows.Add(rowvals);
-               }
-            }
-         }
-         BlueTable rv = new BlueTable(_schema);
-         foreach (object[] rval in res_rows) {
-            rv.addRow(new BlueRow(_schema, rval));
-         }
-         var dp = BlueDataUtility.build_dp(rv, myLastValue as IDataPacket);
-         myFireEvent(dp);
-
-         object[] build_row_array(int id, IBlueRow l_row) {
-            object[] rv = new object[_schema.columnNames.Length];
-            for (int i = 0; i < _schema.columnNames.Length; i++) {
-               rv[i] = DBNull.Value;
-            }
-            rv[0] = id;
-            copy_row(rv, l_row, true);
-            return rv;
-         }
-
-         void copy_row(object?[] rval, IBlueRow r, bool is_left) {
-            int offset = 1;
-            JoinBookkeepingData sdata = _ldata;
-            if (is_left) {
-               offset = 1;
-               sdata = _ldata;
-            } else {
-               sdata = _rdata;
-               offset = 1 + _ldata.RequireSchema().columnInfo.Length;
-            }
-            for (int i = 0; i < sdata.RequireSchema().columnInfo.Length; i++) {
-               rval[offset + i] = r[i];
-            }
-         }
-      }
-   }
-
-   [DataStreamUserRespresentation("FullJoinStream")]
-   public class FullJoinStream : ViewStream {
-      public FullJoinStream(ViewStream l_str, string ljcs, ViewStream r_str, string rjcs) {
-         ViewStream js = new SimpleJoinStream(l_str, ljcs, r_str, rjcs);
-         ViewStream rs = new bts.BlueOrb.FilterStream(js, r => !DBNull.Value.Equals(r["right_id"]));
-         mySetRealSource(rs);
-      }
-   }
-
-}
@@ -1,28 +0,0 @@
-//namespace bts.Blueorb {
-//   using BCG;
-
-//   public class JsonSaverStream : ViewStream {
-//      private ViewStream _stream;
-//      private string _file_name;
-//      public JsonSaverStream(ViewStream vs, string file_name) {
-//         _stream = vs;
-//         _file_name = file_name;
-//      }
-
-//      protected override void myOnFirstSubscriber() {
-//         _stream.onChange += _on_data;
-//      }
-
-//      private void _on_data(object dp_obj) {
-//         if (dp_obj == null) {
-//            return;
-//         }
-//         DataPacket dp = dp_obj as DataPacket;
-//         dp.newRows.write_to_json_file(dp.newRows, _file_name);
-//      }
-
-//      protected override void myOnLastSubscriber() {
-//         _stream.onChange -= _on_data;
-//      }
-//   }
-//}
@@ -1,91 +0,0 @@
-using System;
-using System.Collections;
-using System.Collections.Generic;
-
-using Amazon.Runtime.Internal.Util;
-
-using BCG;
-using BCG.Utilities;
-
-using bts;
-
-namespace bts.BlueOrb{
-   public class LiteralStream : ViewStream {
-
-      public static List<Tuple<ColumnInfo, object>> parse_columns(string key_value_pairs) {
-         List<Tuple<ColumnInfo, object>> rv = new List<Tuple<ColumnInfo, object>>();
-         string[] pairs = key_value_pairs.Split(' ');
-         foreach (string p in pairs) {
-            string[] kvp = p.Split(':');
-            string col_name = kvp[0];
-            string val = kvp[1];
-            var tup = BlueDataUtility.guess_type(val);
-            var ci = new ColumnInfo(col_name, rv.Count, tup.Item1);
-            rv.Add(Tuple.Create(ci, tup.Item2));
-         }
-         return rv;
-      }
-
-      //literal("table1", "x:123, y:1.001, z:abc;x:123, y:1.001, z:abc")
-      // col_name: col_value ... ; col_name: col_value
-      public LiteralStream(string table_name, string rows) {
-         Func<string, int, IBlueRow> get_row = (json_row, id) => {
-            Dictionary<string, object> map = new Dictionary<string, object>();
-            string[] toks = json_row.Split(',', StringSplitOptions.TrimEntries);
-            //Logger.assert(col_vals.Length == 2);
-            foreach (string t in toks) {
-               var col_vals = t.Split(':', StringSplitOptions.TrimEntries);
-               string col = col_vals[0];
-               string val = col_vals[1];
-               map.Add(col, val);
-            }
-            map["id"] = id;
-            return new BlueRow(map);
-         };
-         string[] row_arr = rows.Split(';', StringSplitOptions.TrimEntries);
-         BlueTable table = null;
-         foreach (string json_string in row_arr) {
-            IBlueRow r = //BlueDataUtility.convert_json_to_row(json_string, table == null ? 0 : table.Count);
-            get_row(json_string, table == null ? 0 : table.Count);
-            table = table ?? new BlueTable(r.schema);
-            table.addRow(r);
-         }
-         ViewStream str = new BlueTableStream(table);
-         str = new SchemaGuesserStream(str);
-         mySetRealSource(str);
-      }
-
-      public LiteralStream(string tableName, string schema, string value) {
-         string[] columns = schema.Split(' ');
-
-
-         ColumnInfo[] ci = new ColumnInfo[columns.Length + 1];
-         ci[0] = new ColumnInfo("id", 0, typeof(int));
-         int n = 1;
-         foreach (string c in columns) {
-            string[] columnAndType = c.Split('/');
-            if (columnAndType.Length == 1)
-               ci[n] = new ColumnInfo(c, n, typeof(double));
-            else
-               ci[n] = new ColumnInfo(columnAndType[0], n, Type.GetType("System." + columnAndType[1], true));
-            n++;
-         }
-
-
-         BlueTable t = new BlueTable(new BlueTableSchema(tableName, ci));
-         string[] rows = value.Split(';');
-         n = 0;
-         foreach (string r in rows)
-            try {
-               if (r == string.Empty)
-                  continue;
-               t.addRow(
-                  BlueDataUtility.createRowFromCSVFileRow(r, t.schema, ++n));
-            } catch (Exception e) {
-               throw (new Exception("Error occured at line: " + n.ToString() + " " + e.Message));
-            }
-
-         mySetRealSource(new BlueRowCollectionStaticStream(t));
-      }
-   }
-}
@@ -1,89 +0,0 @@
-using System;
-
-using BCG.Utilities.General;
-using BCG;
-using bts;
-
-namespace bts.BlueOrb {
-   [DataStreamUserRespresentation("MillisecondStream")]
-   public class MillisecondStream : ViewStream, IWorker {
-      private DateTime _last_fire_time = DateTime.MinValue;
-      private readonly TimeSpan _period;
-      private readonly int _size;
-      private readonly ViewStreamDatabase _vsd;
-      private IBlueTableSchema _schema;
-      private bts.CircularBufferTable _table;
-
-      public MillisecondStream(int interval_msecs, int size)
-      : this(ViewStreamDatabase.instance, interval_msecs, size) {
-      }
-
-      public MillisecondStream(ViewStreamDatabase vsd, int interval_msecs, int size) {
-         _vsd = vsd;
-         _period = TimeSpan.FromMilliseconds(interval_msecs);
-         _size = size;
-         _schema = BlueDataUtility.form_schema("Milliseconds",
-               Tuple.Create("id", TypeCode.Int32),
-               Tuple.Create("time", TypeCode.DateTime),
-               Tuple.Create("display_time", TypeCode.String));
-         _table = new CircularBufferTable(_schema, _size);
-      }
-
-      protected override void myOnFirstSubscriber() {
-         _vsd.addWorker(this);
-      }
-
-      protected override void myOnLastSubscriber() {
-         _vsd.removeWorker(this);
-      }
-
-      private int _id = 0;
-      public void doWork() {
-         if (DateTime.Now - _last_fire_time >= _period) {
-            _last_fire_time = DateTime.Now;
-            IBlueRow nr = new BlueRow(_schema, _id++, _last_fire_time,
-            _last_fire_time.ToString("yyyy-MM-dd HH:mm:ss.fff"));
-            _table.add_row(nr);
-            var dp = BlueDataUtility.build_dp_inc(_table, myLastValue as DataPacket);
-            myFireEvent(dp);
-         }
-      }
-   }
-   internal class MSecondStream : TimeUnitStream {
-      public MSecondStream(int intervalInms, int size)
-         : base(DateTime.Now, new TimeSpan(0, 0, 0, 0, intervalInms), size, ViewStreamDatabase.instance) { }
-
-      protected override DateTime myRoundTime(DateTime dt) { return dt; }
-   }
-
-   internal class DisplayableMillisecondStream : ViewStream, IStreamMapper {
-      private IBlueTableSchema mySchema = new BlueTableSchema("ms",
-                                                               new ColumnInfo("id", 0, typeof(int)),
-                                                               new ColumnInfo("time", 1, typeof(string)));
-      public DisplayableMillisecondStream(int intervalInMs, int sz) {
-         mySetRealSource(new MapStream(new MSecondStream(intervalInMs, sz), this));
-      }
-      #region IStreamMapper Members
-
-      public IBlueTableSchema getOutputSchema(IBlueTableSchema inputSchema) {
-         return mySchema;
-      }
-
-      #endregion
-
-      #region IDynamicStreamMapper Members
-
-      public IBlueRow map(IBlueRow row) {
-         DateTime time = row.get_datetime("time");
-         var time_txt = time.ToString("yyyy-MM-dd HH:mm:ss.fff");
-         return new BlueRow(mySchema, row["id"], time_txt);
-      }
-
-      #endregion
-
-      private string myToString(DateTime dt) {
-         string sep = ":";
-         return dt.Hour + sep + dt.Minute + sep + dt.Second + sep + dt.Millisecond;
-      }
-   }
-}
@@ -1,168 +0,0 @@
-namespace bts.BlueOrb {
-   using BCG;
-
-   using System;
-   using System.Collections.Generic;
-   using System.Linq;
-   //using MathNet.Numerics.Statistics;
-
-
-   public enum MultiRowOp {
-      Mean,
-      Median,
-      Mode,
-      Range,
-      StdDev,
-      Max,
-      Min,
-      First,
-      Last,
-      Sum,
-      EdgeDiff,
-      EdgeDiffPercentage,
-   }
-   public class MultiRowOpHelper {
-      // input + op
-      public readonly List<Tuple<string, MultiRowOp>> operations;
-
-      public static MultiRowOpHelper parse_ops(string text) {
-         // text is inp_col: op, inp_col: op, inp_col:op
-         // ex: "open:First, close:Last, high:Max, low:Min, volume:Sum")
-         List<Tuple<string, MultiRowOp>> rv = new List<Tuple<string, MultiRowOp>>();
-         string[] calcs = text.Split(',');
-         foreach (string c in calcs) {
-            string[] toks = c.Split(':');
-            string inp_col = toks[0].Trim();
-            string op_txt = toks[1].Trim();
-            MultiRowOp op = Enum.Parse<MultiRowOp>(op_txt, true);
-            rv.Add(Tuple.Create(inp_col, op));
-         }
-         return new MultiRowOpHelper(rv);
-      }
-
-      public MultiRowOpHelper(List<Tuple<string, MultiRowOp>> operations_) {
-         operations = operations_;
-      }
-
-      // aggregates multiple rows into one - ie does group_by compute
-      public static IBlueRow? group_by_compute(List<IBlueRow> rows, MultiRowOpHelper parameters) {
-         if (rows.Count == 0) {
-            return null;
-         }
-
-         IBlueRow ir = rows.ElementAt(0);
-         IBlueTableSchema in_schema = ir.schema;
-         IBlueTableSchema out_schema = in_schema;
-         IDictionary<string, Tuple<string, MultiRowOp>> out_col_map =
-            new Dictionary<string, Tuple<string, MultiRowOp>>();
-         foreach (var t in parameters.operations) {
-            string out_col_name = $"{t.Item1}_{t.Item2}".ToLower();
-            out_schema = out_schema.add_column(TypeCode.Double, out_col_name);
-            out_col_map[out_col_name] = t;
-         }
-         MutableBlueRow or = new MutableBlueRow(out_schema, ir);
-         foreach (var kv in out_col_map) {
-            string out_col_name = kv.Key;
-            string in_col_name = kv.Value.Item1;
-            MultiRowOp op = kv.Value.Item2;
-            IEnumerable<double> col_vals = BlueDataUtility.get_colvalues<double>(rows, in_col_name);
-            double comp_res = compute_op(col_vals, op);
-            or.setValue(out_col_name, comp_res);
-         }
-         return or;
-      }
-
-      // aggregates multiple rows into one, used by MultiRowRollingMathStream
-      public static IBlueRow? group_by_compute(List<IBlueRow> rows, int start_idx, int n_rows, MultiRowOpHelper parameters) {
-         if (rows.Count == 0) {
-            return null;
-         }
-         IBlueRow ir = rows.ElementAt(start_idx);
-         IBlueTableSchema in_schema = ir.schema;
-         IBlueTableSchema out_schema = in_schema;
-         // out_col vs inp_cal + type
-         IDictionary<string, Tuple<string, MultiRowOp>> out_col_map =
-            new Dictionary<string, Tuple<string, MultiRowOp>>();
-         foreach (var t in parameters.operations) {
-            string out_col_name = $"{t.Item1}_{t.Item2}".ToLower();
-            out_schema = out_schema.add_column(TypeCode.Double, out_col_name);
-            out_col_map[out_col_name] = t;
-         }
-         MutableBlueRow or = new MutableBlueRow(out_schema, ir);
-         foreach (var kv in out_col_map) {
-            string out_col_name = kv.Key;
-            string in_col_name = kv.Value.Item1;
-            MultiRowOp op = kv.Value.Item2;
-            IEnumerable<double> col_vals = BlueDataUtility.get_colvalues<double>(rows, start_idx, n_rows, in_col_name);
-            double comp_res = compute_op(col_vals, op);
-            or.setValue(out_col_name, comp_res);
-            or.setValue("id", ir["id"]);
-         }
-         return or;
-      }
-
-      // rolling_rows are the rolling window of rows. the 0th row is the one thats gettin
-      // calculated. rows 1 - n-1 are its window rows. the schema is based on the operations.
-
-      public IBlueRow? rolling_calc(List<IBlueRow> rolling_rows) {
-         if (rolling_rows.Count == 0) {
-            return null;
-         }
-         IBlueRow ir = rolling_rows.ElementAt(0);
-         IBlueTableSchema in_schema = ir.schema;
-         IBlueTableSchema out_schema = in_schema;
-         IDictionary<string, Tuple<string, MultiRowOp>> out_col_map =
-            new Dictionary<string, Tuple<string, MultiRowOp>>();
-         foreach (var t in operations) {
-            string out_col_name = $"{t.Item1}_{t.Item2}".ToLower();
-            out_schema = out_schema.add_column(TypeCode.Double, out_col_name);
-            out_col_map[out_col_name] = t;
-         }
-         MutableBlueRow or = new MutableBlueRow(out_schema, ir);
-         foreach (var kv in out_col_map) {
-            string out_col_name = kv.Key;
-            string in_col_name = kv.Value.Item1;
-            MultiRowOp op = kv.Value.Item2;
-            IEnumerable<double> col_vals = BlueDataUtility.get_colvalues<double>(rolling_rows, in_col_name);
-            double comp_res = compute_op(col_vals, op);
-            or.setValue(out_col_name, comp_res);
-         }
-         return or;
-      }
-
-      public static double compute_op(IEnumerable<double> col_vals, MultiRowOp op) {
-         switch (op) {
-            case MultiRowOp.Max:
-               return col_vals.Max<double>();
-            case MultiRowOp.Min:
-               return col_vals.Min<double>();
-            case MultiRowOp.Mean:
-               return MathNet.Numerics.Statistics.Statistics.Mean(col_vals);
-            case MultiRowOp.Sum:
-               return col_vals.Sum();
-            case MultiRowOp.Median:
-               return MathNet.Numerics.Statistics.Statistics.Median(col_vals);
-            //case MultiRowOp.Mode:
-            //   return MathNet.Numerics.Statistics.Statistics.(col_vals);
-            case MultiRowOp.First:
-               return col_vals.First();
-            case MultiRowOp.Last:
-               return col_vals.Last();
-            case MultiRowOp.StdDev:
-               return MathNet.Numerics.Statistics.Statistics.StandardDeviation(col_vals);
-            case MultiRowOp.EdgeDiff:
-               return col_vals.First() - col_vals.Last();
-            case MultiRowOp.EdgeDiffPercentage: {
-                  double first = col_vals.First();
-                  double last = col_vals.Last();
-                  return ((first - last) / last) * 100.0;
-               }
-            default:
-               // TODO
-               Log.assert(false);
-               return Double.NaN;
-         }
-      }
-
-   }
-}
@@ -1,40 +0,0 @@
-namespace bts.BlueOrb {
-   using BCG;
-
-   using System;
-
-   [DataStreamUserRespresentation("MultiRowRollingMathStream")]
-   public class MultiRowRollingMathStream : ViewStream {
-      private ViewStream _sorted_parent_str;
-      private MultiRowOpHelper _op;
-      private int _rolling_window_sz;
-      public MultiRowRollingMathStream(ViewStream parent_str, string op_txt, string sort_exp, int rolling_window_sz) {
-         _sorted_parent_str = new SortStream(parent_str, sort_exp);
-         _op = MultiRowOpHelper.parse_ops(op_txt);
-         _rolling_window_sz = rolling_window_sz;
-      }
-
-      protected override void myOnFirstSubscriber() {
-         _sorted_parent_str.onChange += _parent_str_onchange;
-      }      
-
-      protected override void myOnLastSubscriber() {
-         _sorted_parent_str.onChange -= _parent_str_onchange;
-      }
-
-      private void _parent_str_onchange(object dp_obj) {
-         var dp = (IDataPacket)dp_obj;
-         var rows = dp.newRows.to_list();
-         BlueTable? out_table = null;
-         for (int i = 0; i < rows.Count; i++) {
-            var out_r = MultiRowOpHelper.group_by_compute(rows, i, _rolling_window_sz, _op)
-               ?? throw new InvalidOperationException("group_by_compute returned null row");
-            if (out_table == null)
-               out_table = new BlueTable(out_r.schema);
-            out_table.addRow(out_r);
-         }            
-         var dp_out = BlueDataUtility.build_dp_inc(out_table, myLastValue as DataPacket, true);
-         myFireEvent(dp_out);
-      }
-   }
-}
@@ -1,190 +0,0 @@
-namespace bts.BlueOrb {
-   using BCG;
-
-   using Spark.Core.Diagnostics;
-
-   using System;
-   using System.Collections;
-   using System.Collections.Generic;
-   using System.Linq;
-
-   #region mappings
-   internal class ProjectData {
-      // schema from the base stream
-      public readonly IBlueTableSchema in_schema;
-      // this is the projected schema
-      public readonly IBlueTableSchema out_schema;
-      // projected cols to the input cols, for cols who's names are changed
-      public readonly IDictionary<string, string> mapped_to_orig_col_map = new Dictionary<string, string>();
-      public ProjectData(IBlueTableSchema in_schema_, IBlueTableSchema out_schema_,
-                  IDictionary<string, string> mapped_to_orig_col_map_) {
-         in_schema = in_schema_;
-         out_schema = out_schema_;
-         mapped_to_orig_col_map = mapped_to_orig_col_map_;
-      }
-   }
-   #endregion
-
-
-#region Row with mappings build in
-   internal class NewProjectRow : IBlueRow {
-      #region IBlueRow members
-      private ProjectData _project_data;
-      private IBlueRow _row;
-      public NewProjectRow(ProjectData project_data, IBlueRow row) {
-         _project_data = project_data;
-         _row = row;
-      }
-      public IBlueTableSchema schema { get { return _project_data.out_schema; } }
-      #endregion
-
-      #region ICollection members
-      public int Count { get { return schema.columnNames.Length; } }
-
-      public bool IsSynchronized { get { return false; } }
-
-      public object SyncRoot { get { return this; } }
-
-      public void CopyTo(Array array, int index) {
-         int i = index;
-         foreach (object o in this as IEnumerable)
-            array.SetValue(o, i++);
-      }
-      #endregion
-
-      #region IDictionary members
-      public bool IsFixedSize { get { return true; } }
-
-      public bool IsReadOnly { get { return true; } }
-
-      public object? this[object key] {
-         get {
-            if (key is string)
-               return this[(string)key];
-            return this[(int)key];
-         }
-         set { throw new NotSupportedException("The IBlueRow is readonly"); }
-      }
-
-      public object? this[int index] {
-         get {
-            return this[schema.columnInfo[index].colName];
-         }
-      }
-
-      public object? this[string col_name] {
-         get {
-            if (_project_data.mapped_to_orig_col_map.TryGetValue(col_name, out var mapped_to_col)) {
-               return _row[mapped_to_col];
-            }
-            return _row[col_name];
-         }
-      }
-
-      public ICollection Keys { get { return schema.columnNames; } }
-
-      public ICollection Values {
-         get {
-            object[] retVal = new object[schema.columnNames.Length];
-            CopyTo(retVal, 0);
-            return retVal;
-         }
-      }
-
-      public void Add(object key, object? value) =>
-         throw new NotSupportedException();
-
-      public void Clear() { throw new NotSupportedException("The IBlueRow is readonly"); }
-
-      public bool Contains(object key) { return schema[(string)key] != null; }
-
-      /// <summary>
-      /// Note, the default enumerator is the IDictionary's enumerator, so if user needs to
-      /// iterate through the values, typecast this into an IEnumerable
-      /// </summary>
-      /// <returns></returns>
-      public IDictionaryEnumerator GetEnumerator() { return new BlueRowDictionaryEnumerator(this); }
-
-      IEnumerator IEnumerable.GetEnumerator() { return new BlueRowEnumerator(this); }
-
-      public void Remove(object key) { throw new NotSupportedException("The IBlueRow is readonly"); }
-      #endregion
-   }
-   #endregion
-
-   [DataStreamUserRespresentation("ProjectStream")]
-   public class NewProjectStream : ViewStream, IStreamMapper {
-
-      private ViewStream _stream;
-      private string _project_expression;
-      ProjectData? _project_data;
-      //public ProjectData 
-      public NewProjectStream(ViewStream vs, string project_expression) {
-         _stream = vs;
-         _project_expression = project_expression;
-         _stream = new MapStream(vs, this);
-         mySetRealSource(_stream);
-      }
-
-      public IBlueTableSchema getOutputSchema(IBlueTableSchema input_schema) {
-         _project_data = _create_project_data(input_schema, _project_expression);
-         return _project_data.out_schema;
-      }
-
-      public IBlueRow map(IBlueRow row) =>
-         new NewProjectRow(ExceptionAssert.MemberNotNull(_project_data), row);
-
-      // this is where most of the logic is, in terms of translating cols
-      private static ProjectData _create_project_data(IBlueTableSchema input_schema,
-                                                      string project_expression) {
-         project_expression = project_expression.Trim();
-         string[] project_toks = project_expression.Split(' ', ',');
-         HashSet<string> removed_cols = new HashSet<string>();
-         Dictionary<string, string> orig_to_mapped = new Dictionary<string, string>();      
-         // by default every col will show up, so if we have the projection as (a:a1)
-         // it will convert a to a1, 
-         // modifications (6/30/2025):
-         // only the columns represented here, either mapped
-         // or not, will show
-         // examples: if a schema has cols a b c
-         // project(parent_str, "a:aa b") -> aa b
-         foreach (string o_p_tok in project_toks) {
-            string p_tok = o_p_tok.Trim();
-            if (p_tok.Contains(":")) {
-               // explicit mapping
-               string[] map_toks = p_tok.Split(":");
-               string orig_col = map_toks[0];
-               string mapped_col = map_toks[1];
-               orig_to_mapped.Add(orig_col, mapped_col);  
-            } else {
-               // this is a col_name explicitely stated
-               if (input_schema.columnNames.Contains(p_tok)) {
-                  string orig_col = p_tok;
-                  string mapped_col = orig_col;
-                  orig_to_mapped.Add(orig_col, mapped_col);
-               }
-            }
-         }
-
-         // make the new schema
-         List<ColumnInfo> new_cols = new List<ColumnInfo>();
-         foreach (ColumnInfo ci in input_schema.columnInfo) {
-            if (ci.colName == "id") {
-               ColumnInfo nc = new ColumnInfo(ci.colName, new_cols.Count, ci.colType);
-               new_cols.Add(nc);
-               continue;           
-            } else if (orig_to_mapped.ContainsKey(ci.colName)) {
-               string mapped_name = orig_to_mapped[ci.colName];
-               ColumnInfo nc = new ColumnInfo(mapped_name, new_cols.Count, ci.colType);
-               new_cols.Add(nc);
-            }
-         }
-         IBlueTableSchema new_schema = new BlueTableSchema(input_schema.tableName, new_cols.ToArray());
-         var mapped_to_orig_map = orig_to_mapped.ToDictionary(kv => kv.Value, kv => kv.Key);
-         return new ProjectData(input_schema, new_schema, mapped_to_orig_map);
-      }
-
-   
-
-   }
-}
@@ -1,128 +0,0 @@
-namespace bts.BlueOrb {
-   using BCG;
-   using System.IO;
-   using System.Diagnostics;
-   using System;
-
-   [DataStreamUserRespresentation("PythonDataframeStream")]
-   public class PythonDataframeStream : ViewStream {
-      private ViewStream _parent_str;
-      private readonly string _in_csv_file_name;
-      private readonly string _out_csv_filename;
-      private readonly string _transform_function;
-      public PythonDataframeStream(ViewStream parent_str, string transform_function) {
-         var guid = System.Guid.NewGuid();
-         _in_csv_file_name = $"pdfs_in_{guid}.csv";
-         _out_csv_filename = $"pdfs_out_{guid}.csv";
-         _parent_str = new CSVSaverStream(parent_str, _in_csv_file_name);
-         _transform_function = transform_function;
-      }
-
-      protected override void myOnFirstSubscriber() {
-         _parent_str.onChange += _parent_str_onchange;
-      }
-
-      protected override void myOnLastSubscriber() {
-         _parent_str.onChange -= _parent_str_onchange;
-      }
-
-      private void _parent_str_onchange(object dp_obj) {
-         Log.assert(dp_obj != null);
-         // the file _in_csv_file_name is now populated.
-         // call py_func_wrapper_main and pass this file name as well
-         // as the output file name
-         // py_func_wrapper_main reads _in_csv_file_name into the df and calls 
-         // transform function, which returns the tranformed df. py_func_wrapper_main then
-         // writes it into the _out_csv_filename file.
-         // now this function should read _out_csv_filename into a dp
-         // and fire it
-         _compute_and_write();
-         //ViewStream rs = new SchemaGuesserStream(new CSVReaderStream(_out_csv_filename));
-         ViewStream rs = new CSVReaderStream(_out_csv_filename);
-         IBlueRowCollection nrows = null;
-         rs.onChange += (dp_obj) => {
-            nrows = (dp_obj as DataPacket).newRows;
-         };
-         var dp = BlueDataUtility.build_dp(nrows, myLastValue as DataPacket);
-         myFireEvent(dp);
-      }
-
-      private void _compute_and_write() {
-         File.WriteAllText("user_code.py", _transform_function);
-         // wrapper function
-         string py_func_wrapper_main = @"
-import sys
-from user_code import transform
-import pandas as pd
-
-if __name__ == '__main__':
-   input_file_name = sys.argv[1]
-   output_file_name = sys.argv[2]
-# 1. load input_file_name into df
-# 2. do some test calc
-# 3. write the output of 2 into output_file_name
-   df = pd.read_csv(input_file_name)   
-   df_out = transform(df)
-   df_out.to_csv(output_file_name, index=False)";
-
-
-         File.WriteAllText("runner.py", py_func_wrapper_main);
-
-         ProcessStartInfo psi = new ProcessStartInfo {
-            FileName = "python",
-            Arguments = $"runner.py {_in_csv_file_name} {_out_csv_filename}",
-            RedirectStandardOutput = false,
-            UseShellExecute = false
-         };
-         var proc = Process.Start(psi);
-         proc.WaitForExit();
-
-      }
-
-      #region Unused test code
-      private void _simple_test() {
-
-         // actual function that needs to be called ////////////////////////
-         string py_real_function = @"
-def test(x, out_path):
-   rv = x * 10
-   with open(out_path, 'w') as f:
-      f.write(str(rv))
-   return rv";
-         // the function is in a string object.
-         File.WriteAllText("user_code.py", py_real_function);
-
-
-         // runner app (top level main function) //////////////////////////////
-         string py_func_wrapper_main = @"
-import sys
-from user_code import test
-
-if __name__ == '__main__':
-   arg = int(sys.argv[1])
-   out_path = sys.argv[2]
-   rv = test(arg, out_path)
-   rv = rv + 12
-   with open(out_path, 'w') as f:to \
-      f.write(str(rv))";
-   
-         File.WriteAllText("runner.py", py_func_wrapper_main);
-
-         string outputPath = "py_out.txt";
-         ProcessStartInfo psi = new ProcessStartInfo {
-            FileName = "python",
-            Arguments = $"runner.py 4 {outputPath}",
-            RedirectStandardOutput = false,
-            UseShellExecute = false
-         };
-         var proc = Process.Start(psi);
-         proc.WaitForExit();
-
-         // Now read the output written by the function
-         string result = File.ReadAllText(outputPath);
-         Console.WriteLine(result); // Should print "6"
-
-      }
-      #endregion
-   }
-}
@@ -1,30 +0,0 @@
-using BCG;
-
-namespace bts.BlueOrb {
-   public class SchemaGuesserStream : ViewStream {
-
-      private IBlueRowCollection _rows = null;
-      private ViewStream _vs;
-      public SchemaGuesserStream(ViewStream vs) {
-         _vs = vs;
-      }
-
-      protected override void myOnFirstSubscriber() {
-         _vs.onChange += _on_data;
-      }
-      protected override void myOnLastSubscriber() {
-         _vs.onChange -= _on_data;
-      }
-
-      private void _on_data(object obj) {
-         DataPacket dp = obj as DataPacket;
-         if (_rows == null) {
-            _rows = BlueDataUtility.get_typed_table(dp.newRows);
-         }
-         var dp_out = BlueDataUtility.build_dp_inc(_rows, myLastValue as DataPacket);
-         myFireEvent(dp_out);
-
-      }
-
-   }
-}
@@ -1,67 +0,0 @@
-using Bts.ArithmeticExpressions;
-
-using System;
-using System.Collections.Generic;
-using System.Linq;
-using System.Text;
-using BCG;
-
-namespace bts.BlueOrb {
-
-   [DataStreamUserRespresentation("SingleRowMathStream")]
-   public class MathStream : ViewStream, IStreamMapper {
-      private IArithmeticProgram myExp;
-      private BooleanExpressionFilter _bool;
-      List<string> myExtraColumns = new List<string>();
-      BlueTableSchema mySchema;
-
-
-      public MathStream(ViewStream vs, string mathExpression)
-         : this(vs, mathExpression, string.Empty) {
-      }
-
-      public MathStream(ViewStream vs, string mathExpression, string boolean_expression) {
-         myExp = ArithmeticProgramParser.Parse(mathExpression) ??
-            throw new Exception($"Failed to parse ArithmeticExpression '{mathExpression}'");
-         myExtraColumns = myExp.OutputIdentifiers.ToList();
-         if (!string.IsNullOrEmpty(boolean_expression))
-            _bool = new BooleanExpressionFilter(boolean_expression);
-         mySetRealSource(new MapStream(vs, this));
-      }
-
-      #region IStreamMapper Members
-
-      public IBlueTableSchema getOutputSchema(IBlueTableSchema inputSchema) {
-         if (mySchema == null) {
-            Dictionary<string, ColumnInfo> colIdx = new Dictionary<string, ColumnInfo>();
-            foreach (ColumnInfo ci in inputSchema.columnInfo)
-               colIdx[ci.colName] = ci;
-
-            foreach (string ncn in myExtraColumns) {
-               ColumnInfo newC;
-               if (colIdx.ContainsKey(ncn))
-                  newC = new ColumnInfo(colIdx[ncn].colName, colIdx[ncn].colNo, typeof(double));
-               else
-                  newC = new ColumnInfo(ncn, colIdx.Count, typeof(double));
-               colIdx[ncn] = newC;
-            }
-            mySchema = new BlueTableSchema(colIdx.Values.ToArray(), "math(" + inputSchema.tableName + ")");
-         }
-         return mySchema;
-      }
-
-      #endregion
-
-      #region IDynamicStreamMapper Members
-
-      public IBlueRow map(IBlueRow row) {
-         MutableBlueRow result = new MutableBlueRow(mySchema, row);
-         if (_bool == null || _bool.filter(row)) {
-            myExp.Evaluate(result.AsDictionary());
-         }
-         return result;
-      }
-
-      #endregion
-   }
-}
@@ -1,17 +0,0 @@
-namespace bts.BlueOrb {
-   using BCG;
-
-   using System;
-   using System.Collections.Generic;
-   using System.Linq;
-   using System.Text;
-   using System.Threading.Tasks;
-
-   [DataStreamUserRespresentation("SortStream")]
-   public class SortStream: ViewStream {
-      public SortStream (ViewStream parent_stream, string sort_expr) {
-         ViewStream rs = new BCG.SortStream(parent_stream, sort_expr);
-         mySetRealSource(rs);
-      }
-   }
-}
@@ -1,58 +0,0 @@
-namespace BlueOrb.Internal;
-
-using BCG;
-
-using System;
-using System.Linq;
-
-[DataStreamUserRespresentation("TestStream")]
-public class TestStream : ViewStream {
-   public TestStream() {
-      var rs = new BlueOrb.Operators.Core.LiteralStream("table1", "x:123, y:1.001, z:abc;x:123, y:1.001, z:abc");
-      mySetRealSource(rs);
-   }
-}
-
-[DataStreamUserRespresentation("OpsStream")]
-public class OpsStream : ViewStream {
-   public OpsStream() {
-   }
-
-   protected override void myOnFirstSubscriber() {
-      IBlueTableSchema schema = new BlueTableSchema("Ops");
-      schema = schema.add_column(System.TypeCode.Int32, "id");
-      schema = schema.add_column(System.TypeCode.String, "op");
-      schema = schema.add_column(System.TypeCode.String, "namespace");
-      schema = schema.add_column(System.TypeCode.String, "assembly_name");
-      schema = schema.add_column(System.TypeCode.String, "constructor");
-      var loaded_streams = PrimitiveManager.instance.get_loaded_streams();
-      BlueTable rv = new BlueTable(schema);
-      foreach (var kv in loaded_streams.OrderBy(kv => kv.Key, StringComparer.OrdinalIgnoreCase)) {
-         string sn = kv.Key;
-         Type t = kv.Value;
-         string ns = t.Namespace ?? string.Empty;
-         string assembly_name = t.Assembly.GetName().Name ?? string.Empty;
-         var constructors = t.GetConstructors()
-            .OrderBy(c => c.GetParameters().Length)
-            .ThenBy(c => c.ToString());
-         if (!constructors.Any()) {
-            IBlueRow r = new BlueRow(schema, rv.Count, sn, ns, assembly_name, "(no public constructor)");
-            rv.addRow(r);
-            continue;
-         }
-         foreach (var ctor in constructors) {
-            var parameters = ctor.GetParameters();
-            string constructor = $"{t.Name}({string.Join(", ", parameters.Select(p => p.ParameterType.Name))})";
-            IBlueRow r = new BlueRow(schema, rv.Count, sn, ns, assembly_name, constructor);
-            rv.addRow(r);
-         }
-      }
-      myFireEvent(new DataPacket(rv, rv, new BlueTable(schema)));
-   }
-
-   protected override void myOnLastSubscriber() {
-      base.myOnLastSubscriber();
-   }
-
-
-}
@@ -1,16 +0,0 @@
-namespace bts.BlueOrb {
-   using BCG;
-
-   using System;
-   using System.Collections.Generic;
-   using System.Linq;
-   using System.Text;
-   using System.Threading.Tasks;
-   [DataStreamUserRespresentation("TimeBasedRollingFilterStream")]
-   public class TimeBasedRollingFilterStream : ViewStream {
-      public TimeBasedRollingFilterStream(ViewStream parent_str, string time_col, double n_seconds) {
-         ViewStream rs = new BCG.TimeBasedFilterStream(ViewStreamDatabase.instance, parent_str, time_col, TimeSpan.FromSeconds(n_seconds));
-         mySetRealSource(rs);
-      }
-   }
-}
@@ -1,11 +0,0 @@
-namespace bts.BlueOrb {
-   using BCG;
-   [DataStreamUserRespresentation("TopStream")]
-   public class TopStream : ViewStream { 
-      public TopStream(ViewStream vs, int n_rows, string sort_col) {
-         ViewStream rs = new BCG.TopStream (vs, n_rows, sort_col);
-         mySetRealSource(rs);
-      }
-   }
-
-}
@@ -1,17 +0,0 @@
-namespace bts.BlueOrb {
-   using System;
-   using System.Collections.Generic;
-
-   using mbts;
-   using BCG;
-
-   // [DataStreamUserRespresentation("UnionStream")]
-   [DataStreamUserRespresentation("AppendStream")]
-   public class UnionStream : ViewStream {
-      public UnionStream(ViewStream left_stream, ViewStream right_stream) {
-         ViewStream rs = new BCG.MutableAppendStream(left_stream, right_stream);
-         mySetRealSource(rs);
-      }
-   }
-
-}
Author	SHA1	Message	Date
Mohammad Arham	be9c61f435	temp stuff working	2024-07-16 12:29:23 +00:00
Mohammad Arham	1f7bacdf3b	Added Onix Libraries	2024-06-25 22:37:42 +00:00
				`@@ -1 +0,0 @@`
				`PYTHONPATH=/workspaces/spark/build/sparkd-debug-clang/src/lib_python_interop;/workspaces/spark/src/lib_python_interop/python_interop_plugins;/workspaces/spark/tools/py`
				`@@ -1 +0,0 @@`
				`r=TimeSeriesStream(ReplayFutureLiveBBOStream("ES"))`