refactor: Use generic collections in PrimitiveManager

The class that instantiates ViewStreams via reflection

.config/dotnet-tools.json

@@ -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"
-      ]
     }
   }
-}
+}

.devcontainer/Dockerfile

@@ -65,7 +65,7 @@ RUN \
    && 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
@@ -129,3 +129,5 @@ RUN \
    -G sudo \
    --password "$(openssl passwd -1 "$docker_pass")" \
    "$docker_user"
+
+RUN usermod -aG docker "$docker_user"

.devcontainer/devcontainer.json

@@ -1,10 +1,15 @@
 {
   "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=${localWorkspaceFolder},target=/home/bts/spark,type=bind",
+  "workspaceFolder": "/home/bts/spark",
   "updateRemoteUserUID": true,
   "shutdownAction": "none",
   // Note: If running multiple containers on the same host, each must use a
@@ -12,19 +17,26 @@
   // example, if 8000-8003 is taken, go with 9000-9003, then 10000-10003, etc.
   "runArgs": [
     "--shm-size",
-    "8gb"
+    "2gb",
+    "--network",
+    "host"
   ],
   "mounts": [
+    "source=${localEnv:HOME}/.bts/devcontainer-mounts/${devcontainerId},target=/home/bts,type=bind",
     "source=/var/run/docker.sock,target=/var/run/docker.sock,type=bind"
   ],
   "customizations": {
     "vscode": {
+      "settings": {
+        "clangd.arguments": [
+          "--compile-commands-dir=${workspaceFolder}/build/clang/debug"
+        ]
+      },
       "extensions": [
         "eamodio.gitlens",
         "llvm-vs-code-extensions.vscode-clangd",
         "ms-vscode.cmake-tools",
-        "ms-vscode.cpptools",
-        "xaver.clang-format"
+        "ms-vscode.cpptools"
       ]
     }
   }

.env

@@ -1,49 +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
-#
-
-### 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
-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
-
-# TODO: add config for other services (pubsub, md-publisher, webapp, api-server, etc.)

.gitattributes

@@ -1,3 +1,4 @@
 *.cmd text=auto eol=crlf
 *.cs text=auto eol=crlf
 *.sh text=auto eol=lf
+*.py text=auto eol=lf

.gitignore

@@ -11,7 +11,6 @@ cmake-build-debug/
 **.vscode/*
 !.vscode/launch.json
 !.vscode/tasks.json
-!.vscode/*.env
 .vs
 obj/
 *.csproj.user
@@ -60,5 +59,3 @@ trace_data/
 .devcontainer/
 *.Generated.cs
 *.lst
-.env.local
-.secrets

.vscode/launch.json

@@ -1,14 +1,6 @@
 {
   "version": "0.2.0",
   "configurations": [
-    {
-      "name": "Python Debugger: Current File with Arguments",
-      "type": "debugpy",
-      "request": "launch",
-      "program": "${file}",
-      "console": "integratedTerminal",
-      "args": "${command:pickArgs}"
-    },
     {
       "name": ".NET Core Attach",
       "type": "coreclr",
@@ -24,11 +16,20 @@
         "program": "spark_api_server.exe",
         "args": [
           "run",
-          "--sparkd",
-          "http://127.0.0.1:8000/config"
         ],
         "cwd": "build/Debug/bin/net7.0",
       },
+      "linux": {
+        "preLaunchTask": "Build Api Server (Debug)",
+        "program": "spark_api_server",
+        "args": [
+          "run",
+        ],
+        "cwd": "build/Debug/bin/net7.0",
+      },
+      "env": {
+        "ASPNETCORE_ENVIRONMENT": "Development",
+      },
       "stopAtEntry": false,
       "console": "integratedTerminal"
     },
@@ -41,11 +42,19 @@
         "program": "spark_api_server.exe",
         "args": [
           "run",
-          "--sparkd",
-          "http://127.0.0.1:8000/config"
         ],
         "cwd": "build/Debug/bin/net7.0",
       },
+      "linux": {
+        "program": "spark_api_server",
+        "args": [
+          "run",
+        ],
+        "cwd": "build/Debug/bin/net7.0",
+      },
+      "env": {
+        "ASPNETCORE_ENVIRONMENT": "Development",
+      },
       "stopAtEntry": false,
       "console": "integratedTerminal"
     },
@@ -54,8 +63,8 @@
       "type": "coreclr",
       "request": "launch",
       "preLaunchTask": "Build DataStream WebApp (Debug)",
-      "program": "${workspaceFolder}/build/Debug/bin/net8.0/Bts.DataStreamWebApp.Server.dll",
-      "cwd": "${workspaceFolder}/build/Debug/bin/net8.0",
+      "program": "${workspaceFolder}/build/Debug/bin/net7.0/Bts.DataStreamWebApp.Server.dll",
+      "cwd": "${workspaceFolder}/build/Debug/bin/net7.0",
       "env": {
         "ASPNETCORE_HTTP_PORT": "8080",
         "ASPNETCORE_HTTPS_PORT": "8443",
@@ -67,8 +76,8 @@
       "name": "Bts.DataStreamWebApp.Server (Skip Build)",
       "type": "coreclr",
       "request": "launch",
-      "program": "${workspaceFolder}/build/Debug/bin/net8.0/Bts.DataStreamWebApp.Server.dll",
-      "cwd": "${workspaceFolder}/build/Debug/bin/net8.0",
+      "program": "${workspaceFolder}/build/Debug/bin/net7.0/Bts.DataStreamWebApp.Server.dll",
+      "cwd": "${workspaceFolder}/build/Debug/bin/net7.0",
       "env": {
         "ASPNETCORE_HTTP_PORT": "8080",
         "ASPNETCORE_HTTPS_PORT": "8443",
@@ -88,10 +97,10 @@
       "windows": {
         "program": "DataStreamPublisher.exe",
       },
-      "cwd": "build/Debug/bin/net8.0",
       "env": {
         "DOTNET_ENVIRONMENT": "${input:dataStreamPublisherEnvironment}",
       },
+      "cwd": "${workspaceFolder}/build/Debug/bin/net7.0",
       "stopAtEntry": false,
       "console": "integratedTerminal"
     },
@@ -106,10 +115,10 @@
       "windows": {
         "program": "DataStreamPublisher.exe",
       },
-      "cwd": "${workspaceFolder}/build/Debug/bin/net8.0",
       "env": {
         "DOTNET_ENVIRONMENT": "${input:dataStreamPublisherEnvironment}",
       },
+      "cwd": "${workspaceFolder}/build/Debug/bin/net7.0",
       "stopAtEntry": false,
       "console": "integratedTerminal"
     },
@@ -118,39 +127,7 @@
       "type": "cppdbg",
       "request": "launch",
       "program": "/home/bts/spark/build/sparkd-debug-clang/server/sparkd",
-      "args": [
-        "run"
-      ],
-      "stopAtEntry": false,
-      "cwd": "/home/bts/spark/build/sparkd-debug-clang/server",
-      "environment": [],
-      "externalConsole": false,
-      "MIMode": "gdb",
-    },
-    {
-      "name": "spreader tests2",
-      "type": "cppdbg",
-      "request": "launch",
-      "program": "/home/bts/spark/build/sparkd-debug-clang/server/sparkd",
-      "args": [
-        "test",
-        "[spreader2]"
-      ],
-      "stopAtEntry": false,
-      "cwd": "/home/bts/spark/build/sparkd-debug-clang/server",
-      "environment": [],
-      "externalConsole": false,
-      "MIMode": "gdb",
-    },
-    {
-      "name": "spreader tests",
-      "type": "cppdbg",
-      "request": "launch",
-      "program": "/home/bts/spark/build/sparkd-debug-clang/server/sparkd",
-      "args": [
-        "test",
-        "[spreader]"
-      ],
+      "args": ["run"],
       "stopAtEntry": false,
       "cwd": "/home/bts/spark/build/sparkd-debug-clang/server",
       "environment": [],
@@ -169,7 +146,7 @@
           "--config",
           "${workspaceFolder}/src/DataStreamSuite/DataStreamQueryAnalyzer/Configurations/DataStreamQueryAnalyzer.json"
         ],
-        "cwd": "build/Debug/bin/net8.0-windows",
+        "cwd": "build/Debug/bin/net7.0-windows",
         "env": {
           "PYTHON_EXE": "${workspaceFolder}/.venv/Scripts/python.exe"
         },
@@ -189,7 +166,7 @@
       "windows": {
         "program": "PubSubServer.exe",
       },
-      "cwd": "build/Debug/bin/net8.0",
+      "cwd": "build/Debug/bin/net7.0",
       "env": {
         "DOTNET_ENVIRONMENT": "${input:pubSubServerEnvironment}",
       },
@@ -222,19 +199,11 @@
       "windows": {
         "preLaunchTask": "Build Spark (Debug)",
         "program": "Spark.exe",
-        "cwd": "build/Debug/bin/net8.0-windows",
-      },
-      "stopAtEntry": false,
-      "console": "integratedTerminal"
-    },
-    {
-      "name": "Spark (Skip Build)",
-      "type": "coreclr",
-      "request": "launch",
-      "program": "",
-      "windows": {
-        "program": "Spark.exe",
-        "cwd": "build/Debug/bin/net8.0-windows",
+        "args": [
+          "--sparkd",
+          "http://127.0.0.1:8000/config"
+        ],
+        "cwd": "build/Debug/bin/net7.0-windows",
       },
       "stopAtEntry": false,
       "console": "integratedTerminal"
@@ -251,40 +220,7 @@
           "--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",
-          "${input:sparkTest}"
-        ]
+        "cwd": "build/Debug/bin/net7.0-windows",
       },
       "stopAtEntry": false,
       "console": "integratedTerminal"
@@ -293,6 +229,7 @@
       "name": "Sparkd",
       "type": "cppdbg",
       "request": "launch",
+      "preLaunchTask": "Build Sparkd (Debug | Clang)",
       "program": "",
       "linux": {
         "program": "${workspaceFolder}/build/sparkd-debug-clang/src/app_sparkd/sparkd",
@@ -345,6 +282,34 @@
         }
       ]
     },
+    {
+      "name": "Sparkd Web (Skip Build)",
+      "type": "cppdbg",
+      "request": "launch",
+      "program": "",
+      "linux": {
+        "program": "${workspaceFolder}/build/sparkd-debug-clang/src/app_sparkd/sparkd",
+      },
+      "args": [
+        "web"
+      ],
+      "cwd": "${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
+        }
+      ]
+    },
   ],
   "inputs": [
     {
@@ -390,16 +355,6 @@
       "description": "Config Server URL",
       "default": "http://localhost:8000/config",
     },
-    {
-      "id": "sparkTest",
-      "type": "promptString",
-      "description": "Test to run",
-    },
-    {
-      "id": "sparkdTest",
-      "type": "promptString",
-      "description": "Test to run",
-    },
     {
       "id": "isSparkApiEnabled",
       "type": "pickString",

.vscode/python.env

@@ -1 +0,0 @@
-PYTHONPATH=/workspaces/spark/build/sparkd-debug-clang/src/lib_python_interop;/workspaces/spark/src/lib_python_interop/python_interop_plugins

.vscode/tasks.json

@@ -490,7 +490,7 @@
           "${workspaceFolder}/src/DataStreamSuite/DataStreamQueryAnalyzer/Configurations/DataStreamQueryAnalyzer.json",
         ],
         "options": {
-          "cwd": "${workspaceFolder}/build/${input:buildConfiguration}/bin/net8.0-windows"
+          "cwd": "${workspaceFolder}/build/${input:buildConfiguration}/bin/net7.0-windows"
         },
       },
       "icon": {
@@ -510,7 +510,7 @@
           "${workspaceFolder}/src/DataStreamSuite/DataStreamQueryAnalyzer/Configurations/DataStreamQueryAnalyzer.json",
         ],
         "options": {
-          "cwd": "${workspaceFolder}/build/Debug/bin/net8.0-windows"
+          "cwd": "${workspaceFolder}/build/Debug/bin/net7.0-windows"
         },
       },
       "icon": {
@@ -530,7 +530,7 @@
           "${workspaceFolder}/src/DataStreamSuite/DataStreamQueryAnalyzer/Configurations/DataStreamQueryAnalyzer.json",
         ],
         "options": {
-          "cwd": "${workspaceFolder}/build/Release/bin/net8.0-windows"
+          "cwd": "${workspaceFolder}/build/Release/bin/net7.0-windows"
         },
       },
       "icon": {
@@ -554,7 +554,7 @@
         "${workspaceFolder}/src/DataStreamSuite/DataStreamPublisher/Configurations/${input:dataStreamPublisherConfig}.json",
       ],
       "options": {
-        "cwd": "${workspaceFolder}/build/${input:buildConfiguration}/bin/net8.0"
+        "cwd": "${workspaceFolder}/build/${input:buildConfiguration}/bin/net7.0"
       },
       "icon": {
         "id": "run",
@@ -577,7 +577,7 @@
         "${workspaceFolder}/src/DataStreamSuite/DataStreamPublisher/Configurations/${input:dataStreamPublisherConfig}.json",
       ],
       "options": {
-        "cwd": "${workspaceFolder}/build/Debug/bin/net8.0"
+        "cwd": "${workspaceFolder}/build/Debug/bin/net7.0"
       },
       "icon": {
         "id": "run",
@@ -600,7 +600,7 @@
         "${workspaceFolder}/src/DataStreamSuite/DataStreamPublisher/Configurations/${input:dataStreamPublisherConfig}.json",
       ],
       "options": {
-        "cwd": "${workspaceFolder}/build/Release/bin/net8.0"
+        "cwd": "${workspaceFolder}/build/Release/bin/net7.0"
       },
       "icon": {
         "id": "run",
@@ -706,7 +706,7 @@
         "${workspaceFolder}/src/DataStreamSuite/PubSubServer/Configurations/${input:pubSubServerConfig}.json",
       ],
       "options": {
-        "cwd": "${workspaceFolder}/build/${input:buildConfiguration}/bin/net8.0"
+        "cwd": "${workspaceFolder}/build/${input:buildConfiguration}/bin/net7.0"
       },
       "icon": {
         "id": "run",
@@ -729,7 +729,7 @@
         "${workspaceFolder}/src/DataStreamSuite/PubSubServer/Configurations/${input:pubSubServerConfig}.json",
       ],
       "options": {
-        "cwd": "${workspaceFolder}/build/Debug/bin/net8.0"
+        "cwd": "${workspaceFolder}/build/Debug/bin/net7.0"
       },
       "icon": {
         "id": "run",
@@ -751,7 +751,7 @@
         "${workspaceFolder}/src/DataStreamSuite/PubSubServer/Configurations/${input:pubSubServerConfig}.json",
       ],
       "options": {
-        "cwd": "${workspaceFolder}/build/Debug/bin/net8.0"
+        "cwd": "${workspaceFolder}/build/Debug/bin/net7.0"
       },
       "icon": {
         "id": "run",
@@ -774,7 +774,7 @@
         "${workspaceFolder}/src/DataStreamSuite/PubSubServer/Configurations/${input:pubSubServerConfig}.json",
       ],
       "options": {
-        "cwd": "${workspaceFolder}/build/Release/bin/net8.0"
+        "cwd": "${workspaceFolder}/build/Release/bin/net7.0"
       },
       "icon": {
         "id": "run",
@@ -796,7 +796,7 @@
         "${workspaceFolder}/src/DataStreamSuite/PubSubServer/Configurations/${input:pubSubServerConfig}.json",
       ],
       "options": {
-        "cwd": "${workspaceFolder}/build/Release/bin/net8.0"
+        "cwd": "${workspaceFolder}/build/Release/bin/net7.0"
       },
       "icon": {
         "id": "run",
@@ -811,7 +811,7 @@
       "windows": {
         "command": "Spark.exe",
         "options": {
-          "cwd": "${workspaceFolder}/build/${input:buildConfiguration}/bin/net8.0-windows"
+          "cwd": "${workspaceFolder}/build/${input:buildConfiguration}/bin/net7.0-windows"
         },
       },
       "icon": {
@@ -827,7 +827,7 @@
       "windows": {
         "command": "Spark.exe",
         "options": {
-          "cwd": "${workspaceFolder}/build/Debug/bin/net8.0-windows"
+          "cwd": "${workspaceFolder}/build/Debug/bin/net7.0-windows"
         },
       },
       "icon": {
@@ -843,22 +843,7 @@
       "windows": {
         "command": "Spark.exe",
         "options": {
-          "cwd": "${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": "${workspaceFolder}/build/Release/bin/net7.0-windows"
         },
       },
       "icon": {
@@ -883,7 +868,7 @@
         "${input:sparkConfigQuery}",
       ],
       "options": {
-        "cwd": "${workspaceFolder}/build/${input:buildConfiguration}/bin/net8.0"
+        "cwd": "${workspaceFolder}/build/${input:buildConfiguration}/bin/net7.0"
       },
       "icon": {
         "id": "run",
@@ -909,24 +894,6 @@
         "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",
@@ -948,65 +915,6 @@
         "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",
@@ -1125,16 +1033,6 @@
       "id": "sparkdConfigQuery",
       "type": "promptString",
       "description": "Config Type(s)"
-    },
-    {
-      "id": "sparkTest",
-      "type": "promptString",
-      "description": "Test to run",
-    },
-    {
-      "id": "sparkdTest",
-      "type": "promptString",
-      "description": "Test to run",
-    },
+    }
   ]
 }

CMakeLists.txt

@@ -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()
@@ -36,98 +33,85 @@ 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})
-
 add_compile_definitions(SHARED_MEMORY_PREFIX="${SHARED_MEMORY_PREFIX}")
 if(DEFINED APP_DATA_DIR)
   add_compile_definitions(APP_DATA_DIR="${APP_DATA_DIR}")
 endif()
 add_compile_definitions(EXPORT_MD_CONSUMER="${EXPORT_MD_CONSUMER}")
-if(WIN32)
-  # subdirs
-  add_subdirectory(src/lib_spark)
-else()
-  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.
-    add_compile_definitions(SPARK_ENABLE_CCAPI)
 
-    # This allows us to override hardcoded exchange-urls with ones read from
-    # config (i.e., resolved at runtime rather than compile-time)
-    add_compile_definitions(CCAPI_EXPOSE_INTERNAL)
+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.
+  add_compile_definitions(SPARK_ENABLE_CCAPI)
 
-    # Enable ccapi services
-    add_compile_definitions(CCAPI_ENABLE_SERVICE_MARKET_DATA)
-    add_compile_definitions(CCAPI_ENABLE_SERVICE_EXECUTION_MANAGEMENT)
-    # Enable ccapi exchanges
-    add_compile_definitions(CCAPI_ENABLE_EXCHANGE_BINANCE)
-    add_compile_definitions(CCAPI_ENABLE_EXCHANGE_BINANCE_COIN_FUTURES)
-    add_compile_definitions(CCAPI_ENABLE_EXCHANGE_BINANCE_US)
-    add_compile_definitions(CCAPI_ENABLE_EXCHANGE_BINANCE_USDS_FUTURES)
-    add_compile_definitions(CCAPI_ENABLE_EXCHANGE_COINBASE)
-    add_compile_definitions(CCAPI_ENABLE_EXCHANGE_DERIBIT)
-    add_compile_definitions(CCAPI_ENABLE_EXCHANGE_OKX)
+  # This allows us to override hardcoded exchange-urls with ones read from
+  # config (i.e., resolved at runtime rather than compile-time)
+  add_compile_definitions(CCAPI_EXPOSE_INTERNAL)
 
-    set(CCAPI_LOG_LEVEL
-      "Warn"
-      CACHE STRING "<Fatal|Error|Warn|Info|Debug|Trace> Log level for ccapi")
-    string(TOUPPER "${CCAPI_LOG_LEVEL}" _ccapi_log_level_upper)
-    add_compile_definitions("CCAPI_ENABLE_LOG_${_ccapi_log_level_upper}")
+  # Enable ccapi services
+  add_compile_definitions(CCAPI_ENABLE_SERVICE_MARKET_DATA)
+  add_compile_definitions(CCAPI_ENABLE_SERVICE_EXECUTION_MANAGEMENT)
+  # Enable ccapi exchanges
+  add_compile_definitions(CCAPI_ENABLE_EXCHANGE_BINANCE)
+  add_compile_definitions(CCAPI_ENABLE_EXCHANGE_BINANCE_COIN_FUTURES)
+  add_compile_definitions(CCAPI_ENABLE_EXCHANGE_BINANCE_US)
+  add_compile_definitions(CCAPI_ENABLE_EXCHANGE_BINANCE_USDS_FUTURES)
+  add_compile_definitions(CCAPI_ENABLE_EXCHANGE_COINBASE)
+  add_compile_definitions(CCAPI_ENABLE_EXCHANGE_DERIBIT)
+  add_compile_definitions(CCAPI_ENABLE_EXCHANGE_OKX)
 
-    # ** Binance **
-    add_compile_definitions(CCAPI_BINANCE_URL_REST_BASE="https://api.binance.com")
-    add_compile_definitions(BINANCE_INSTRUMENTS_PATH="/api/v3/exchangeInfo")
-    add_compile_definitions(BINANCE_PRICE_STATS_PATH="/api/v3/ticker/24hr")
+  set(CCAPI_LOG_LEVEL
+    "Warn"
+    CACHE STRING "<Fatal|Error|Warn|Info|Debug|Trace> Log level for ccapi")
+  string(TOUPPER "${CCAPI_LOG_LEVEL}" _ccapi_log_level_upper)
+  add_compile_definitions("CCAPI_ENABLE_LOG_${_ccapi_log_level_upper}")
 
-    # ** Binance US **
-    add_compile_definitions(BINANCE_US_INSTRUMENTS_PATH="/api/v3/exchangeInfo")
-    add_compile_definitions(BINANCE_US_PRICE_STATS_PATH="/api/v3/ticker/24hr")
+  # ** Binance **
+  add_compile_definitions(CCAPI_BINANCE_URL_REST_BASE="https://api.binance.com")
+  add_compile_definitions(BINANCE_INSTRUMENTS_PATH="/api/v3/exchangeInfo")
+  add_compile_definitions(BINANCE_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 US **
+  add_compile_definitions(BINANCE_US_INSTRUMENTS_PATH="/api/v3/exchangeInfo")
+  add_compile_definitions(BINANCE_US_PRICE_STATS_PATH="/api/v3/ticker/24hr")
 
-    # ** 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")
+  # ** Binance USDS Futures **
+  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")
-    add_compile_definitions(DERIBIT_INSTRUMENTS_PATH="/api/v2/public/get_instruments")
-    add_compile_definitions(DERIBIT_COMBOS_PATH="/api/v2/public/get_combos")
-    add_compile_definitions(DERIBIT_TICKER_PATH="/api/v2/public/ticker")
-    add_compile_definitions(DERIBIT_CURRENCIES_METHOD="public/get_currencies")
-    add_compile_definitions(DERIBIT_INSTRUMENT_METHOD="public/get_instrument")
-    add_compile_definitions(DERIBIT_INSTRUMENTS_METHOD="public/get_instruments")
-    add_compile_definitions(DERIBIT_COMBO_DETAILS_METHOD="public/get_combo_details")
-    add_compile_definitions(DERIBIT_COMBOS_METHOD="public/get_combos")
+  # ** Deribit **
+  add_compile_definitions(DERIBIT_INSTRUMENT_PATH="/api/v2/public/get_instrument")
+  add_compile_definitions(DERIBIT_INSTRUMENTS_PATH="/api/v2/public/get_instruments")
+  add_compile_definitions(DERIBIT_COMBOS_PATH="/api/v2/public/get_combos")
+  add_compile_definitions(DERIBIT_TICKER_PATH="/api/v2/public/ticker")
+  add_compile_definitions(DERIBIT_CURRENCIES_METHOD="public/get_currencies")
+  add_compile_definitions(DERIBIT_INSTRUMENT_METHOD="public/get_instrument")
+  add_compile_definitions(DERIBIT_INSTRUMENTS_METHOD="public/get_instruments")
+  add_compile_definitions(DERIBIT_COMBO_DETAILS_METHOD="public/get_combo_details")
+  add_compile_definitions(DERIBIT_COMBOS_METHOD="public/get_combos")
 
-    # ** Okx **
-    add_compile_definitions(OKX_INSTRUMENTS_PATH="/api/v5/public/instruments")
-    add_compile_definitions(OKX_UNDERLYING_PATH="/api/v5/public/underlying")
-  endif()
+  # ** Okx **
+  add_compile_definitions(OKX_INSTRUMENTS_PATH="/api/v5/public/instruments")
+  add_compile_definitions(OKX_UNDERLYING_PATH="/api/v5/public/underlying")
+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/data_files)
-  endif()
-  if (BUILD_ADMIN_WEB_APP)
-    add_subdirectory(src/Spark.Admin.WebApp)
-  endif()
-  if(BUILD_DOCS)
-    add_subdirectory(doc/user)
-  endif()
-  if(BUILD_SDK)
-    add_subdirectory(src/sdk)
-  endif()
+# subdirs
+add_subdirectory(src/lib_system)
+add_subdirectory(src/lib_domain)
+add_subdirectory(src/lib_http)
+if (BUILD_SPARKD)
+  add_subdirectory(src/lib_python_md)
+  add_subdirectory(src/app_sparkd)
+  add_subdirectory(src/data_files)
+endif()
+add_subdirectory(src/lib_spark)
+if (BUILD_ADMIN_WEB_APP)
+  add_subdirectory(src/Spark.Admin.WebApp)
+endif()
+if(BUILD_DOCS)
+  add_subdirectory(doc/user)
+endif()
+if(BUILD_SDK)
+  add_subdirectory(src/sdk)
 endif()

CMakePresets.json

@@ -24,13 +24,12 @@
         "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_INSTALL_PREFIX": "${sourceDir}/install/${presetName}",
         "CMAKE_SHARED_LINKER_FLAGS_DEBUG": "/DEBUG",
         "CMAKE_SHARED_LINKER_FLAGS_RELEASE": "/OPT:REF /OPT:ICF /LTCG",
         "CMAKE_TOOLCHAIN_FILE": "${sourceDir}/vcpkg/scripts/buildsystems/vcpkg.cmake",
         "EXTERNALS_ROOT": "${sourceDir}/externals/windows",
         "CONFIG_DEFAULTS_PATH": "spark/config/profiles/default/*.conf",
-        "DOTNET_BINARY_DIR": "${sourceDir}/build/$<CONFIG>/bin/net8.0;${sourceDir}/build/$<CONFIG>/bin/net8.0-windows",
+        "DOTNET_BINARY_DIR": "${sourceDir}/build/$<CONFIG>/bin/net7.0;${sourceDir}/build/$<CONFIG>/bin/net7.0-windows",
         "EXPORT_MD_CONSUMER": {
           "type": "BOOL",
           "value": "ON"
@@ -50,20 +49,11 @@
       "binaryDir": "${sourceDir}/build/${presetName}",
       "cacheVariables": {
         "platform": "",
-        "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": "${sourceDir}/vcpkg/scripts/buildsystems/vcpkg.cmake",
-        "DATABENTO_USE_EXTERNAL_JSON": {
-          "type": "BOOL",
-          "value": "ON"
-        },
         "EXTERNALS_ROOT": "${sourceDir}/externals/linux",
         "BUILD_SDK": {
           "type": "BOOL",
@@ -174,13 +164,12 @@
         "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}",
         "CMAKE_EXPORT_COMPILE_COMMANDS": {
           "type": "BOOL",
           "value": "ON"
         },
         "CONFIG_DEFAULTS_PATH": "spark/config/profiles/default/*.conf",
-        "DOTNET_BINARY_DIR": "${sourceDir}/build/Spark.Api.Server/$<CONFIG>/bin/net8.0",
+        "DOTNET_BINARY_DIR": "${sourceDir}/build/$<CONFIG>/bin/net7.0",
         "EXPORT_MD_CONSUMER": {
           "type": "BOOL",
           "value": "ON"
@@ -219,7 +208,7 @@
       "binaryDir": "${sourceDir}/build/${presetName}",
       "cacheVariables": {
         "CONFIG_DEFAULTS_PATH": "spark/config/profiles/default/*.conf;spark/config/profiles/data_stream/*.conf",
-        "DOTNET_BINARY_DIR": "${sourceDir}/build/$<CONFIG>/bin/net8.0;${sourceDir}/build/$<CONFIG>/bin/net8.0-windows"
+        "DOTNET_BINARY_DIR": "${sourceDir}/build/$<CONFIG>/bin/net7.0;${sourceDir}/build/$<CONFIG>/bin/net7.0-windows"
       }
     },
 
@@ -252,7 +241,7 @@
         "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",
         "CONFIG_DEFAULTS_PATH": "spark/config/profiles/default/*.conf;spark/config/profiles/data_stream/*.conf",
-        "DOTNET_BINARY_DIR": "${sourceDir}/build/$<CONFIG>/bin/net7.0",
+        "DOTNET_BINARY_DIR": "${sourceDir}/build/$<CONFIG>/bin/net7.0;${sourceDir}/build/$<CONFIG>/bin/net8.0",
         "EXPORT_MD_CONSUMER": {
           "type": "BOOL",
           "value": "ON"
@@ -305,6 +294,14 @@
       "inherits": "sparkd"
     },
 
+    {
+      "name": "sparkd-debug-clang-j6",
+      "configurePreset": "sparkd-debug-clang",
+      "displayName": "Sparkd (Debug | Clang | jobs=6)",
+      "inherits": "sparkd",
+      "jobs": 6
+    },
+
     {
       "name": "sparkd-debug-gcc",
       "configurePreset": "sparkd-debug-gcc",

Spark.Api.Server.sln

@@ -14,33 +14,15 @@ 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}"
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Bts.Net", "src\DataStreamSuite\Bts.Net\Bts.Net.csproj", "{CCDCB00A-CABF-4D82-8A5F-33EEC8ACE51D}"
 EndProject
-Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "DataStreamSuite", "DataStreamSuite", "{C09ED521-D2DF-40BC-A76F-EB3CB870B2F6}"
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "DataStreamCore", "src\DataStreamSuite\DataStreamCore\DataStreamCore.csproj", "{CB62D5D2-3495-4488-BFBC-7C7A3725A1EE}"
 EndProject
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "DataStreamCore", "src\DataStreamSuite\DataStreamCore\DataStreamCore.csproj", "{EF26A475-6101-4C9C-A717-D60BB92A2302}"
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "DataStream", "src\DataStreamSuite\DataStream\DataStream.csproj", "{05995ED5-650A-4955-9DFC-3242B737E77A}"
 EndProject
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "SharedStreams", "src\DataStreamSuite\SharedStreams\SharedStreams.csproj", "{911B08A3-515A-441D-84C8-8A43740B5FC1}"
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "SharedStreams", "src\DataStreamSuite\SharedStreams\SharedStreams.csproj", "{A8B861DE-E098-4291-98EE-76AA0F5F5A7B}"
 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}"
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "PubSub", "src\DataStreamSuite\PubSub\PubSub.csproj", "{EFA9F78D-083E-457A-BABB-9386C88C32C0}"
 EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
@@ -98,102 +80,46 @@ Global
 		{89D666E6-B500-498F-B026-4D167F68ADFC}.Release|x64.Build.0 = Release|x64
 		{89D666E6-B500-498F-B026-4D167F68ADFC}.RelWithDebInfo|x64.ActiveCfg = Debug|x64
 		{89D666E6-B500-498F-B026-4D167F68ADFC}.RelWithDebInfo|x64.Build.0 = Debug|x64
-		{EF26A475-6101-4C9C-A717-D60BB92A2302}.Debug|x64.ActiveCfg = Debug|Any CPU
-		{EF26A475-6101-4C9C-A717-D60BB92A2302}.Debug|x64.Build.0 = Debug|Any CPU
-		{EF26A475-6101-4C9C-A717-D60BB92A2302}.MinSizeRel|x64.ActiveCfg = Debug|Any CPU
-		{EF26A475-6101-4C9C-A717-D60BB92A2302}.MinSizeRel|x64.Build.0 = Debug|Any CPU
-		{EF26A475-6101-4C9C-A717-D60BB92A2302}.Release|x64.ActiveCfg = Release|Any CPU
-		{EF26A475-6101-4C9C-A717-D60BB92A2302}.Release|x64.Build.0 = Release|Any CPU
-		{EF26A475-6101-4C9C-A717-D60BB92A2302}.RelWithDebInfo|x64.ActiveCfg = Debug|Any CPU
-		{EF26A475-6101-4C9C-A717-D60BB92A2302}.RelWithDebInfo|x64.Build.0 = Debug|Any CPU
-		{911B08A3-515A-441D-84C8-8A43740B5FC1}.Debug|x64.ActiveCfg = Debug|Any CPU
-		{911B08A3-515A-441D-84C8-8A43740B5FC1}.Debug|x64.Build.0 = Debug|Any CPU
-		{911B08A3-515A-441D-84C8-8A43740B5FC1}.MinSizeRel|x64.ActiveCfg = Debug|Any CPU
-		{911B08A3-515A-441D-84C8-8A43740B5FC1}.MinSizeRel|x64.Build.0 = Debug|Any CPU
-		{911B08A3-515A-441D-84C8-8A43740B5FC1}.Release|x64.ActiveCfg = Release|Any CPU
-		{911B08A3-515A-441D-84C8-8A43740B5FC1}.Release|x64.Build.0 = Release|Any CPU
-		{911B08A3-515A-441D-84C8-8A43740B5FC1}.RelWithDebInfo|x64.ActiveCfg = Debug|Any CPU
-		{911B08A3-515A-441D-84C8-8A43740B5FC1}.RelWithDebInfo|x64.Build.0 = Debug|Any CPU
-		{14140310-2233-430A-821B-F3058A25234B}.Debug|x64.ActiveCfg = Debug|Any CPU
-		{14140310-2233-430A-821B-F3058A25234B}.Debug|x64.Build.0 = Debug|Any CPU
-		{14140310-2233-430A-821B-F3058A25234B}.MinSizeRel|x64.ActiveCfg = Debug|Any CPU
-		{14140310-2233-430A-821B-F3058A25234B}.MinSizeRel|x64.Build.0 = Debug|Any CPU
-		{14140310-2233-430A-821B-F3058A25234B}.Release|x64.ActiveCfg = Release|Any CPU
-		{14140310-2233-430A-821B-F3058A25234B}.Release|x64.Build.0 = Release|Any CPU
-		{14140310-2233-430A-821B-F3058A25234B}.RelWithDebInfo|x64.ActiveCfg = Debug|Any CPU
-		{14140310-2233-430A-821B-F3058A25234B}.RelWithDebInfo|x64.Build.0 = Debug|Any CPU
-		{43146EA8-6FCC-46B8-88B0-42F9BB5E6E0A}.Debug|x64.ActiveCfg = Debug|Any CPU
-		{43146EA8-6FCC-46B8-88B0-42F9BB5E6E0A}.Debug|x64.Build.0 = Debug|Any CPU
-		{43146EA8-6FCC-46B8-88B0-42F9BB5E6E0A}.MinSizeRel|x64.ActiveCfg = Debug|Any CPU
-		{43146EA8-6FCC-46B8-88B0-42F9BB5E6E0A}.MinSizeRel|x64.Build.0 = Debug|Any CPU
-		{43146EA8-6FCC-46B8-88B0-42F9BB5E6E0A}.Release|x64.ActiveCfg = Release|Any CPU
-		{43146EA8-6FCC-46B8-88B0-42F9BB5E6E0A}.Release|x64.Build.0 = Release|Any CPU
-		{43146EA8-6FCC-46B8-88B0-42F9BB5E6E0A}.RelWithDebInfo|x64.ActiveCfg = Debug|Any CPU
-		{43146EA8-6FCC-46B8-88B0-42F9BB5E6E0A}.RelWithDebInfo|x64.Build.0 = Debug|Any CPU
-		{6F22DB96-6EAB-4034-99D9-287021C36F01}.Debug|x64.ActiveCfg = Debug|Any CPU
-		{6F22DB96-6EAB-4034-99D9-287021C36F01}.Debug|x64.Build.0 = Debug|Any CPU
-		{6F22DB96-6EAB-4034-99D9-287021C36F01}.MinSizeRel|x64.ActiveCfg = Debug|Any CPU
-		{6F22DB96-6EAB-4034-99D9-287021C36F01}.MinSizeRel|x64.Build.0 = Debug|Any CPU
-		{6F22DB96-6EAB-4034-99D9-287021C36F01}.Release|x64.ActiveCfg = Release|Any CPU
-		{6F22DB96-6EAB-4034-99D9-287021C36F01}.Release|x64.Build.0 = Release|Any CPU
-		{6F22DB96-6EAB-4034-99D9-287021C36F01}.RelWithDebInfo|x64.ActiveCfg = Debug|Any CPU
-		{6F22DB96-6EAB-4034-99D9-287021C36F01}.RelWithDebInfo|x64.Build.0 = Debug|Any CPU
-		{A5C33956-A41F-49B3-A41D-1082CBA59D02}.Debug|x64.ActiveCfg = Debug|Any CPU
-		{A5C33956-A41F-49B3-A41D-1082CBA59D02}.Debug|x64.Build.0 = Debug|Any CPU
-		{A5C33956-A41F-49B3-A41D-1082CBA59D02}.MinSizeRel|x64.ActiveCfg = Debug|Any CPU
-		{A5C33956-A41F-49B3-A41D-1082CBA59D02}.MinSizeRel|x64.Build.0 = Debug|Any CPU
-		{A5C33956-A41F-49B3-A41D-1082CBA59D02}.Release|x64.ActiveCfg = Release|Any CPU
-		{A5C33956-A41F-49B3-A41D-1082CBA59D02}.Release|x64.Build.0 = Release|Any CPU
-		{A5C33956-A41F-49B3-A41D-1082CBA59D02}.RelWithDebInfo|x64.ActiveCfg = Debug|Any CPU
-		{A5C33956-A41F-49B3-A41D-1082CBA59D02}.RelWithDebInfo|x64.Build.0 = Debug|Any CPU
-		{2FE745C3-1EDF-4421-8CD7-A63EE0C1AE43}.Debug|x64.ActiveCfg = Debug|Any CPU
-		{2FE745C3-1EDF-4421-8CD7-A63EE0C1AE43}.Debug|x64.Build.0 = Debug|Any CPU
-		{2FE745C3-1EDF-4421-8CD7-A63EE0C1AE43}.MinSizeRel|x64.ActiveCfg = Debug|Any CPU
-		{2FE745C3-1EDF-4421-8CD7-A63EE0C1AE43}.MinSizeRel|x64.Build.0 = Debug|Any CPU
-		{2FE745C3-1EDF-4421-8CD7-A63EE0C1AE43}.Release|x64.ActiveCfg = Release|Any CPU
-		{2FE745C3-1EDF-4421-8CD7-A63EE0C1AE43}.Release|x64.Build.0 = Release|Any CPU
-		{2FE745C3-1EDF-4421-8CD7-A63EE0C1AE43}.RelWithDebInfo|x64.ActiveCfg = Debug|Any CPU
-		{2FE745C3-1EDF-4421-8CD7-A63EE0C1AE43}.RelWithDebInfo|x64.Build.0 = Debug|Any CPU
-		{FDA791E0-2B91-4AD5-B91D-CF920A4C4E38}.Debug|x64.ActiveCfg = Debug|Any CPU
-		{FDA791E0-2B91-4AD5-B91D-CF920A4C4E38}.Debug|x64.Build.0 = Debug|Any CPU
-		{FDA791E0-2B91-4AD5-B91D-CF920A4C4E38}.MinSizeRel|x64.ActiveCfg = Debug|Any CPU
-		{FDA791E0-2B91-4AD5-B91D-CF920A4C4E38}.MinSizeRel|x64.Build.0 = Debug|Any CPU
-		{FDA791E0-2B91-4AD5-B91D-CF920A4C4E38}.Release|x64.ActiveCfg = Release|Any CPU
-		{FDA791E0-2B91-4AD5-B91D-CF920A4C4E38}.Release|x64.Build.0 = Release|Any CPU
-		{FDA791E0-2B91-4AD5-B91D-CF920A4C4E38}.RelWithDebInfo|x64.ActiveCfg = Debug|Any CPU
-		{FDA791E0-2B91-4AD5-B91D-CF920A4C4E38}.RelWithDebInfo|x64.Build.0 = Debug|Any CPU
-		{B945A183-2174-4ACB-B289-8A5C546656FE}.Debug|x64.ActiveCfg = Debug|Any CPU
-		{B945A183-2174-4ACB-B289-8A5C546656FE}.Debug|x64.Build.0 = Debug|Any CPU
-		{B945A183-2174-4ACB-B289-8A5C546656FE}.MinSizeRel|x64.ActiveCfg = Debug|Any CPU
-		{B945A183-2174-4ACB-B289-8A5C546656FE}.MinSizeRel|x64.Build.0 = Debug|Any CPU
-		{B945A183-2174-4ACB-B289-8A5C546656FE}.Release|x64.ActiveCfg = Release|Any CPU
-		{B945A183-2174-4ACB-B289-8A5C546656FE}.Release|x64.Build.0 = Release|Any CPU
-		{B945A183-2174-4ACB-B289-8A5C546656FE}.RelWithDebInfo|x64.ActiveCfg = Debug|Any CPU
-		{B945A183-2174-4ACB-B289-8A5C546656FE}.RelWithDebInfo|x64.Build.0 = Debug|Any CPU
-		{39AEA075-6457-46C0-8821-1158BE6EFA57}.Debug|x64.ActiveCfg = Debug|Any CPU
-		{39AEA075-6457-46C0-8821-1158BE6EFA57}.Debug|x64.Build.0 = Debug|Any CPU
-		{39AEA075-6457-46C0-8821-1158BE6EFA57}.MinSizeRel|x64.ActiveCfg = Debug|Any CPU
-		{39AEA075-6457-46C0-8821-1158BE6EFA57}.MinSizeRel|x64.Build.0 = Debug|Any CPU
-		{39AEA075-6457-46C0-8821-1158BE6EFA57}.Release|x64.ActiveCfg = Release|Any CPU
-		{39AEA075-6457-46C0-8821-1158BE6EFA57}.Release|x64.Build.0 = Release|Any CPU
-		{39AEA075-6457-46C0-8821-1158BE6EFA57}.RelWithDebInfo|x64.ActiveCfg = Debug|Any CPU
-		{39AEA075-6457-46C0-8821-1158BE6EFA57}.RelWithDebInfo|x64.Build.0 = Debug|Any CPU
-		{9F6D7DE8-185B-4C1D-B809-3314D092DF28}.Debug|x64.ActiveCfg = Debug|Any CPU
-		{9F6D7DE8-185B-4C1D-B809-3314D092DF28}.Debug|x64.Build.0 = Debug|Any CPU
-		{9F6D7DE8-185B-4C1D-B809-3314D092DF28}.MinSizeRel|x64.ActiveCfg = Debug|Any CPU
-		{9F6D7DE8-185B-4C1D-B809-3314D092DF28}.MinSizeRel|x64.Build.0 = Debug|Any CPU
-		{9F6D7DE8-185B-4C1D-B809-3314D092DF28}.Release|x64.ActiveCfg = Release|Any CPU
-		{9F6D7DE8-185B-4C1D-B809-3314D092DF28}.Release|x64.Build.0 = Release|Any CPU
-		{9F6D7DE8-185B-4C1D-B809-3314D092DF28}.RelWithDebInfo|x64.ActiveCfg = Debug|Any CPU
-		{9F6D7DE8-185B-4C1D-B809-3314D092DF28}.RelWithDebInfo|x64.Build.0 = Debug|Any CPU
-		{6BD3F6D8-B6FC-44E8-B8FE-06352F638B9B}.Debug|x64.ActiveCfg = Debug|Any CPU
-		{6BD3F6D8-B6FC-44E8-B8FE-06352F638B9B}.Debug|x64.Build.0 = Debug|Any CPU
-		{6BD3F6D8-B6FC-44E8-B8FE-06352F638B9B}.MinSizeRel|x64.ActiveCfg = Debug|Any CPU
-		{6BD3F6D8-B6FC-44E8-B8FE-06352F638B9B}.MinSizeRel|x64.Build.0 = Debug|Any CPU
-		{6BD3F6D8-B6FC-44E8-B8FE-06352F638B9B}.Release|x64.ActiveCfg = Release|Any CPU
-		{6BD3F6D8-B6FC-44E8-B8FE-06352F638B9B}.Release|x64.Build.0 = Release|Any CPU
-		{6BD3F6D8-B6FC-44E8-B8FE-06352F638B9B}.RelWithDebInfo|x64.ActiveCfg = Debug|Any CPU
-		{6BD3F6D8-B6FC-44E8-B8FE-06352F638B9B}.RelWithDebInfo|x64.Build.0 = Debug|Any CPU
+		{CCDCB00A-CABF-4D82-8A5F-33EEC8ACE51D}.Debug|x64.ActiveCfg = Debug|Any CPU
+		{CCDCB00A-CABF-4D82-8A5F-33EEC8ACE51D}.Debug|x64.Build.0 = Debug|Any CPU
+		{CCDCB00A-CABF-4D82-8A5F-33EEC8ACE51D}.MinSizeRel|x64.ActiveCfg = Debug|Any CPU
+		{CCDCB00A-CABF-4D82-8A5F-33EEC8ACE51D}.MinSizeRel|x64.Build.0 = Debug|Any CPU
+		{CCDCB00A-CABF-4D82-8A5F-33EEC8ACE51D}.Release|x64.ActiveCfg = Release|Any CPU
+		{CCDCB00A-CABF-4D82-8A5F-33EEC8ACE51D}.Release|x64.Build.0 = Release|Any CPU
+		{CCDCB00A-CABF-4D82-8A5F-33EEC8ACE51D}.RelWithDebInfo|x64.ActiveCfg = Debug|Any CPU
+		{CCDCB00A-CABF-4D82-8A5F-33EEC8ACE51D}.RelWithDebInfo|x64.Build.0 = Debug|Any CPU
+		{CB62D5D2-3495-4488-BFBC-7C7A3725A1EE}.Debug|x64.ActiveCfg = Debug|Any CPU
+		{CB62D5D2-3495-4488-BFBC-7C7A3725A1EE}.Debug|x64.Build.0 = Debug|Any CPU
+		{CB62D5D2-3495-4488-BFBC-7C7A3725A1EE}.MinSizeRel|x64.ActiveCfg = Debug|Any CPU
+		{CB62D5D2-3495-4488-BFBC-7C7A3725A1EE}.MinSizeRel|x64.Build.0 = Debug|Any CPU
+		{CB62D5D2-3495-4488-BFBC-7C7A3725A1EE}.Release|x64.ActiveCfg = Release|Any CPU
+		{CB62D5D2-3495-4488-BFBC-7C7A3725A1EE}.Release|x64.Build.0 = Release|Any CPU
+		{CB62D5D2-3495-4488-BFBC-7C7A3725A1EE}.RelWithDebInfo|x64.ActiveCfg = Debug|Any CPU
+		{CB62D5D2-3495-4488-BFBC-7C7A3725A1EE}.RelWithDebInfo|x64.Build.0 = Debug|Any CPU
+		{05995ED5-650A-4955-9DFC-3242B737E77A}.Debug|x64.ActiveCfg = Debug|Any CPU
+		{05995ED5-650A-4955-9DFC-3242B737E77A}.Debug|x64.Build.0 = Debug|Any CPU
+		{05995ED5-650A-4955-9DFC-3242B737E77A}.MinSizeRel|x64.ActiveCfg = Debug|Any CPU
+		{05995ED5-650A-4955-9DFC-3242B737E77A}.MinSizeRel|x64.Build.0 = Debug|Any CPU
+		{05995ED5-650A-4955-9DFC-3242B737E77A}.Release|x64.ActiveCfg = Release|Any CPU
+		{05995ED5-650A-4955-9DFC-3242B737E77A}.Release|x64.Build.0 = Release|Any CPU
+		{05995ED5-650A-4955-9DFC-3242B737E77A}.RelWithDebInfo|x64.ActiveCfg = Debug|Any CPU
+		{05995ED5-650A-4955-9DFC-3242B737E77A}.RelWithDebInfo|x64.Build.0 = Debug|Any CPU
+		{A8B861DE-E098-4291-98EE-76AA0F5F5A7B}.Debug|x64.ActiveCfg = Debug|Any CPU
+		{A8B861DE-E098-4291-98EE-76AA0F5F5A7B}.Debug|x64.Build.0 = Debug|Any CPU
+		{A8B861DE-E098-4291-98EE-76AA0F5F5A7B}.MinSizeRel|x64.ActiveCfg = Debug|Any CPU
+		{A8B861DE-E098-4291-98EE-76AA0F5F5A7B}.MinSizeRel|x64.Build.0 = Debug|Any CPU
+		{A8B861DE-E098-4291-98EE-76AA0F5F5A7B}.Release|x64.ActiveCfg = Release|Any CPU
+		{A8B861DE-E098-4291-98EE-76AA0F5F5A7B}.Release|x64.Build.0 = Release|Any CPU
+		{A8B861DE-E098-4291-98EE-76AA0F5F5A7B}.RelWithDebInfo|x64.ActiveCfg = Debug|Any CPU
+		{A8B861DE-E098-4291-98EE-76AA0F5F5A7B}.RelWithDebInfo|x64.Build.0 = Debug|Any CPU
+		{EFA9F78D-083E-457A-BABB-9386C88C32C0}.Debug|x64.ActiveCfg = Debug|Any CPU
+		{EFA9F78D-083E-457A-BABB-9386C88C32C0}.Debug|x64.Build.0 = Debug|Any CPU
+		{EFA9F78D-083E-457A-BABB-9386C88C32C0}.MinSizeRel|x64.ActiveCfg = Debug|Any CPU
+		{EFA9F78D-083E-457A-BABB-9386C88C32C0}.MinSizeRel|x64.Build.0 = Debug|Any CPU
+		{EFA9F78D-083E-457A-BABB-9386C88C32C0}.Release|x64.ActiveCfg = Release|Any CPU
+		{EFA9F78D-083E-457A-BABB-9386C88C32C0}.Release|x64.Build.0 = Release|Any CPU
+		{EFA9F78D-083E-457A-BABB-9386C88C32C0}.RelWithDebInfo|x64.ActiveCfg = Debug|Any CPU
+		{EFA9F78D-083E-457A-BABB-9386C88C32C0}.RelWithDebInfo|x64.Build.0 = Debug|Any CPU
 	EndGlobalSection
 	GlobalSection(SolutionProperties) = preSolution
 		HideSolutionNode = FALSE
@@ -204,19 +130,4 @@ Global
 	GlobalSection(Performance) = preSolution
 		HasPerformanceSessions = true
 	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}
-		{39AEA075-6457-46C0-8821-1158BE6EFA57} = {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}
-	EndGlobalSection
 EndGlobal

cmake/GitVersion.cmake

@@ -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()

cmake/InitLibrary.cmake

@@ -112,7 +112,7 @@ function(init_library)
   )
 
   # Add tests executable (if there are any)
-  if (${_name}_TEST_SOURCES AND NOT WIN32)
+  if (${_name}_TEST_SOURCES)
     add_executable(${_name}-tests ${${_name}_TEST_SOURCES})
 
     get_target_property(_lib_type ${_name} TYPE)

cmake/InitPythonModule.cmake

@@ -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()

cmake/InitPythonPlugin.cmake

@@ -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()

cmake/Protobuf.cmake

@@ -1,182 +0,0 @@
-set(Protobuf_PROTOC_EXECUTABLE "${EXTERNALS_BIN}/protoc")
-set(PROTOBUF_INCLUDE_DIRS "${EXTERNALS_INCLUDE}")
-set(PROTOBUF_STATIC_LIB "libprotobuf")
-set(_protobuf_src_dir ${CMAKE_SOURCE_DIR}/src/lib_spark)
-set(_protobuf_bin_dir ${CMAKE_BINARY_DIR}/src/lib_spark)
-
-function(Protobuf_Generate_Cpp)
-  set(_options)
-  set(_one_value_args CXX_SOURCES CXX_HEADERS CXX_OUT_DIR)
-  set(_multi_value_args PROTO_INCLUDE_DIRS PROTO_SOURCES)
-  cmake_parse_arguments(_ARGS "${_options}" "${_one_value_args}" "${_multi_value_args}" ${ARGN})
-  set(${_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}/${FIL_WE}.pb.h")
-
-    add_custom_command(
-      OUTPUT
-        "${_ARGS_CXX_OUT_DIR}/${FIL_WE}.pb.cc"
-        "${_ARGS_CXX_OUT_DIR}/${FIL_WE}.pb.h"
-      COMMAND
-        ${Protobuf_PROTOC_EXECUTABLE}
-      ARGS
-        --cpp_out=${_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()
-
-function(Service_Compiler_Generate_Cpp)
-  set(_options)
-  set(_one_value_args CXX_SOURCES CXX_HEADERS CXX_OUT_DIR)
-  set(_multi_value_args PROTO_INCLUDE_DIRS PROTO_SOURCES)
-  cmake_parse_arguments(_ARGS "${_options}" "${_one_value_args}" "${_multi_value_args}" ${ARGN})
-  set(${_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")
-
-    list(APPEND ${_ARGS_CXX_SOURCES} "${_ARGS_CXX_OUT_DIR}/${FIL_WE}.client.pb.cc")
-    list(APPEND ${_ARGS_CXX_HEADERS} "${_ARGS_CXX_OUT_DIR}/${FIL_WE}.client.pb.h")
-
-    list(APPEND ${_ARGS_CXX_SOURCES} "${_ARGS_CXX_OUT_DIR}/${FIL_WE}.server.pb.cc")
-    list(APPEND ${_ARGS_CXX_HEADERS} "${_ARGS_CXX_OUT_DIR}/${FIL_WE}.server.pb.h")
-
-    set(TEMPLATES
-      ${CMAKE_SOURCE_DIR}/src/lib_spark/spark/api/service_compiler/templates/cpp/client.pb.cc
-      ${CMAKE_SOURCE_DIR}/src/lib_spark/spark/api/service_compiler/templates/cpp/client.pb.h
-      ${CMAKE_SOURCE_DIR}/src/lib_spark/spark/api/service_compiler/templates/cpp/server.pb.cc
-      ${CMAKE_SOURCE_DIR}/src/lib_spark/spark/api/service_compiler/templates/cpp/server.pb.h
-    )
-
-    set(_plugin_py ${CMAKE_SOURCE_DIR}/src/lib_spark/spark/api/service_compiler/plugin.py)
-    if(WIN32)
-      set(_plugin_cmd ${CMAKE_SOURCE_DIR}/src/lib_spark/spark/api/service_compiler/plugin.cmd)
-      add_custom_command(
-        OUTPUT
-          "${_ARGS_CXX_OUT_DIR}/${FIL_WE}.pb.cc"
-          "${_ARGS_CXX_OUT_DIR}/${FIL_WE}.pb.h"
-          "${_ARGS_CXX_OUT_DIR}/${FIL_WE}.client.pb.cc"
-          "${_ARGS_CXX_OUT_DIR}/${FIL_WE}.client.pb.h"
-          "${_ARGS_CXX_OUT_DIR}/${FIL_WE}.server.pb.cc"
-          "${_ARGS_CXX_OUT_DIR}/${FIL_WE}.server.pb.h"
-        COMMAND SET PYTHONPATH=${SPARK_PYTHON}
-        COMMAND ${CMAKE_SOURCE_DIR}/.venv/Scripts/activate.bat
-        COMMAND
-          ${Protobuf_PROTOC_EXECUTABLE}
-          ARGS
-            --cpp_out=${_ARGS_CXX_OUT_DIR}
-            --plugin=protoc-gen-service=${_plugin_cmd}
-            --service_out=lang=cpp:${_ARGS_CXX_OUT_DIR}
-            -I ${PROTOBUF_INCLUDE_DIRS}
-            -I ${_protobuf_src_dir}
-            ${ABS_FIL}
-        DEPENDS
-          ${ABS_FIL}
-          ${TEMPLATES}
-          ${_plugin_cmd}
-          ${_plugin_py}
-        COMMENT "Running C++ service compiler on ${FIL}"
-        VERBATIM
-      )
-    else()
-      add_custom_command(
-        OUTPUT
-          "${_ARGS_CXX_OUT_DIR}/${FIL_WE}.pb.cc"
-          "${_ARGS_CXX_OUT_DIR}/${FIL_WE}.pb.h"
-          "${_ARGS_CXX_OUT_DIR}/${FIL_WE}.client.pb.cc"
-          "${_ARGS_CXX_OUT_DIR}/${FIL_WE}.client.pb.h"
-          "${_ARGS_CXX_OUT_DIR}/${FIL_WE}.server.pb.cc"
-          "${_ARGS_CXX_OUT_DIR}/${FIL_WE}.server.pb.h"
-        COMMAND ${CMAKE_SOURCE_DIR}/tools/venv_exec.sh
-        ARGS
-          ${Protobuf_PROTOC_EXECUTABLE}
-          --cpp_out=${_ARGS_CXX_OUT_DIR}
-          --plugin=protoc-gen-service=${_plugin_py}
-          --service_out=lang=cpp,make_file_name=${ABS_FIL}:${_ARGS_CXX_OUT_DIR}
-          ${_proto_include_cli_args} ${ABS_FIL}
-        DEPENDS
-          ${ABS_FIL}
-          ${TEMPLATES}
-          ${_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(
-      ${${_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()
-

cmake/ProtobufGenerateCpp.cmake

@@ -15,11 +15,7 @@ function(protobuf_generate_cpp)
   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()
+    set(_ARGS_PROTOC "${EXTERNALS_BIN}/protoc")
   endif()
   set(${_ARGS_CXX_SOURCES})
   set(${_ARGS_CXX_HEADERS})
@@ -39,8 +35,6 @@ function(protobuf_generate_cpp)
     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"
@@ -48,7 +42,7 @@ function(protobuf_generate_cpp)
       COMMAND
         ${_ARGS_PROTOC}
       ARGS
-        --cpp_out=${_ARGS_CXX_OUT_DIR} ${_proto_include_cli_args} ${_abs_fil}
+        --cpp_out=${_ARGS_CXX_OUT_DIR} ${_proto_include_cli_args} ${_fil}
       DEPENDS ${_abs_fil}
       COMMENT "Running C++ protocol buffer compiler on ${_fil}"
       VERBATIM
@@ -80,4 +74,3 @@ function(protobuf_generate_cpp)
   set(${_ARGS_CXX_SOURCES} ${${_ARGS_CXX_SOURCES}} PARENT_SCOPE)
   set(${_ARGS_CXX_HEADERS} ${${_ARGS_CXX_HEADERS}} PARENT_SCOPE)
 endfunction()
-

cmake/ProtobufGenerateCppConfig.cmake

@@ -1,5 +1,3 @@
-include_guard(GLOBAL)
-
 function(protobuf_generate_cpp_config)
   set(_options)
   set(_one_value_args
@@ -58,4 +56,3 @@ function(protobuf_generate_cpp_config)
     file(WRITE "${_ARGS_PROTO_DEFAULTS_HEADER}" "${_cfg_defaults_str}")
   endif()
 endfunction()
-

cmake/SymLinkPythonModule.cmake

@@ -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()

cmake/version.h.in

@@ -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

cmake/vs_filters.cmake

@@ -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})

compose.production.yaml

@@ -0,0 +1,51 @@
+services:
+  sparkd:
+    build:
+      dockerfile: Dockerfile
+      context: ./sparkd
+    command: [ "./sparkd", "run" ]
+    ports: [ "8000:8000", "8001:8001", "8002:8002" ]
+
+  pubsub:
+    build:
+      dockerfile: pubsub.Dockerfile
+      context: ./DataStream
+    command: [ "./PubSubServer" ]
+    environment:
+      - DOTNET_ENVIRONMENT=Production
+    ports:
+      - 22019:22019
+
+  md-publisher:
+    build:
+      dockerfile: md-publisher.Dockerfile
+      context: ./DataStream
+    depends_on:
+      - pubsub
+      - sparkd
+    command:
+      [
+        "dockerize",
+        "-wait",
+        "tcp://pubsub:22019",
+        "-wait",
+        "tcp://sparkd:8000",
+        "-timeout",
+        "10s",
+        "./DataStreamPublisher"
+      ]
+    environment:
+      - DOTNET_ENVIRONMENT=MarketData
+
+  webapp:
+    ports:
+      - 8080:8080
+      - 8443:8443
+    build:
+      dockerfile: webapp.Dockerfile
+      context: ./DataStream
+    command: [ "./Bts.DataStreamWebApp.Server" ]
+    environment:
+      - ASPNETCORE_HTTP_PORT=8080
+      - ASPNETCORE_HTTPS_PORT=8443
+      - ASPNETCORE_ENVIRONMENT=Staging

compose.yaml

@@ -1,113 +1,15 @@
 services:
   sparkd:
-    volumes:
-      - ${SPARKD__DATA_DIR:-sparkd_data}:/home/bts/sparkdata/data
     build:
       dockerfile: src/app_sparkd/Dockerfile
       args:
-        - IMAGE=${SPARKD__IMAGE}
-        - SOURCE_DIR=${SPARKD__SOURCE_DIR}
-        - CONFIG_DIR=${SPARKD__CONFIG_DIR}
-        - PYTHON_REQUIREMENTS=${SPARKD__PYTHON_REQUIREMENTS}
-    shm_size: "${SPARKD__SHM_SIZE:-512mb}"
-    command: >
-      sh -c "
-        echo bts | sudo -S chown -R bts:bts /home/bts/sparkdata/data
-        if [ -e "/home/bts/sparkdata/data/logging.sparkd/log" ]; then
-          mv "/home/bts/sparkdata/data/logging.sparkd/log" "/home/bts/sparkdata/data/logging.sparkd/log_$(date '+%Y%m%d-%H%M')"
-        fi
-        if [ -e "/home/bts/sparkdata/conf/.env.local" ]; then
-          echo 'Sourcing /home/bts/sparkdata/conf/.env.local'
-          set -a
-          . /home/bts/sparkdata/conf/.env.local
-          set +a
-        fi
-        if [ -d /home/bts/sparkdata/conf/plugins ]; then
-          echo 'Copying /home/bts/sparkdata/conf/plugins to runtime dir (/home/bts/bin)'
-          cp -r /home/bts/sparkdata/conf/plugins /home/bts/bin/
-        fi
-        ./sparkd run"
-    env_file:
-      - .env
-      - ${SPARKD__CONFIG_DIR}/.env
+        - SOURCE_DIR=install/sparkd-release-gcc
+        - CONF_FILE=src/app_sparkd/spark.conf
+    command: [ "./sparkd", "run" ]
     ports:
-      - "${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/sparkdata/data
-      - ${SPARKD__RUNTIME_CONF_DIR:-sparkd_conf}:/home/bts/sparkdata/conf
-    build:
-      dockerfile: src/app_sparkd/Dockerfile
-      args:
-        - IMAGE=${SPARKD__IMAGE}
-        - SOURCE_DIR=${SPARKD__SOURCE_DIR}
-        - CONFIG_DIR=${SPARKD__CONFIG_DIR}
-        - PYTHON_REQUIREMENTS=${SPARKD__PYTHON_REQUIREMENTS}
-    shm_size: "${SPARKD__SHM_SIZE:-512mb}"
-    command: >
-      sh -c "
-        echo bts | sudo -S chown -R bts:bts /home/bts/sparkdata
-        if [ -e "/home/bts/sparkdata/data/logging.sparkd/log" ]; then
-          mv "/home/bts/sparkdata/data/logging.sparkd/log" "/home/bts/sparkdata/data/logging.sparkd/log_$(date '+%Y%m%d-%H%M')"
-        fi
-        ls -alh /home/bts/sparkdata/conf/
-        cat /home/bts/sparkdata/conf/.env.local
-        if [ -e "/home/bts/sparkdata/conf/.env.local" ]; then
-          echo 'Sourcing /home/bts/sparkdata/conf/.env.local'
-          set -a
-          . /home/bts/sparkdata/conf/.env.local
-          set +a
-        fi
-        if [ -d /home/bts/sparkdata/conf/plugins ]; then
-          echo 'Copying /home/bts/sparkdata/conf/plugins to runtime dir (/home/bts/bin)'
-          cp -r /home/bts/sparkdata/conf/plugins /home/bts/bin/
-        fi
-        ./sparkd run"
-    env_file:
-      - .env
-      - ${SPARKD__CONFIG_DIR}/.env
-    ports:
-      - "${SPARKD__CONFIG_PORT}:${SPARKD__CONFIG_PORT}"
-      - "${SPARKD__QUICKBUS_PORT}:${SPARKD__QUICKBUS_PORT}"
-      - "${SPARKD__SIM_FIX_PORT}:${SPARKD__SIM_FIX_PORT}"
-    deploy:
-      restart_policy:
-        condition: any
-        delay: 3s
-      resources:
-        limits:
-          memory: "${SPARKD__MEMORY:-4gb}"
-
-  sparkd-tail:
-    image: bluetradingsystems/linux_dotnet7
-    volumes:
-      - type: volume
-        read_only: true
-        source: sparkd_data
-        target: /home/bts/sparkdata/data/logging.sparkd
-        volume:
-          subpath: logging.sparkd
-    command: ["tail", "-f", "/home/bts/sparkdata/data/logging.sparkd/log"]
-
-  sparkd-ping-test:
-    depends_on:
-      - sparkd
-    profiles:
-      - ping-test
-    build:
-      context: .
-      dockerfile_inline: |
-        FROM bluetradingsystems/linux_dotnet7
-        USER "root"
-        RUN apt-get update && apt-get -y install iputils-ping
-    command: [ "ping", "sparkd" ]
+      - 8000:8000
+      - 8001:8001
+      - 8002:8002
 
   pubsub:
     environment:
@@ -115,7 +17,7 @@ services:
     build:
       dockerfile: src/DataStreamSuite/PubSubServer/Dockerfile
       args:
-        - SOURCE_DIR=build/Release/bin/net8.0/linux-x64/publish
+        - SOURCE_DIR=build/Release/bin/net7.0/linux-x64/publish
         - CONF_FILE=src/DataStreamSuite/PubSubServer/spark.conf
     ports:
       - 22019:22019
@@ -125,7 +27,7 @@ services:
     build:
       dockerfile: src/DataStreamSuite/DataStreamPublisher/Dockerfile
       args:
-        - SOURCE_DIR=build/Release/bin/net8.0/linux-x64/publish
+        - SOURCE_DIR=build/Release/bin/net7.0/linux-x64/publish
         - CONF_FILE=src/DataStreamSuite/DataStreamPublisher/spark.conf
     depends_on:
       - pubsub
@@ -141,7 +43,7 @@ services:
     build:
       dockerfile: src/DataStreamSuite/Bts.DataStreamWebApp.Server/Dockerfile
       args:
-        - SOURCE_DIR=build/Release/bin/net8.0/linux-x64/publish
+        - SOURCE_DIR=build/Release/bin/net7.0/linux-x64/publish
         - WEB_ROOT=build/Bts.DataStreamWebApp.Client/production/dist
         - CONF_FILE=src/DataStreamSuite/Bts.DataStreamWebApp.Server/spark.conf
     command: [ "./Bts.DataStreamWebApp.Server" ]
@@ -160,6 +62,15 @@ services:
     environment:
       - ASPNETCORE_ENVIRONMENT=Staging
 
-volumes:
-  sparkd_data:
-    name: "sparkd_${SPARKD__CONFIG_PORT:-8000}"
+  sparkd-ping-test:
+    depends_on:
+      - sparkd
+    profiles:
+      - ping-test
+    build:
+      context: .
+      dockerfile_inline: |
+        FROM bluetradingsystems/linux_dotnet7
+        USER "root"
+        RUN apt-get update && apt-get -y install iputils-ping
+    command: [ "ping", "sparkd" ]

doc/api/content/client/getting-started/services.md

@@ -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>();

doc/api/content/client/services/marketdata.md

@@ -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;

doc/api/content/server/ref/subscriptions.md

@@ -53,7 +53,7 @@ The status callback is called when the market for this security opens, closes, o
 // Subscribe to security trading status
 void IAlgoServices::subscribe_status(SecurityKey);
 // You implement
-virtual void on_status(SecurityKey, co2::TradingStatus) override;
+virtual void on_status(SecurityKey, domain::protobufs::TradingStatus) override;
 ```
 
 # Child Orders

docker/images/bluetradingsystems/linux_dotnet7/Dockerfile

@@ -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

requirements.txt

@@ -1,42 +1,22 @@
 astroid==2.7.3
 autopep8==1.5.7
-blinker==1.9.0
-boto3==1.37.9
-botocore==1.37.9
 certifi==2023.5.7
 charset-normalizer==3.1.0
-click==8.1.8
 colorama==0.4.4
-Flask==3.1.0
 idna==3.4
 isort==5.9.3
-itsdangerous==2.2.0
-Jinja2==3.1.6
-jmespath==1.0.1
 lazy-object-proxy==1.6.0
-MarkupSafe==3.0.2
 mccabe==0.6.1
-numpy==2.2.6
 platformdirs==2.3.0
 protobuf==4.21.12
 pybars3==0.9.7
-pybind11==2.13.6
-pybind11-stubgen==2.5.3
-pybit==5.11.0
 pycodestyle==2.7.0
 pycparser==2.20
-pycryptodome==3.23.0
 pylint==2.10.2
 PyMeta3==0.5.1
-python-dateutil==2.9.0.post0
-python-dotenv==1.0.1
 requests==2.31.0
-s3transfer==0.11.4
-six==1.17.0
 termcolor==1.1.0
 toml==0.10.2
 urllib3==2.0.3
-websocket-client==1.8.0
-Werkzeug==3.1.3
 wrapt==1.12.1
 yapf==0.31.0

spark_client.sln

@@ -18,14 +18,6 @@ Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "spark_websocket", "src\clie
 EndProject
 Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "spark_api_server", "src\client\spark_api_server\spark_api_server.csproj", "{2B8C5D01-FF78-4BFA-B332-5E430586DAF9}"
 EndProject
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "DataStreamCore", "src\DataStreamSuite\DataStreamCore\DataStreamCore.csproj", "{4E4F491F-C688-43C4-88DA-AC92BC5FA1B8}"
-EndProject
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "DataStream", "src\DataStreamSuite\DataStream\DataStream.csproj", "{2AC54ADC-3246-427E-9CA9-FEA2DBCB9432}"
-EndProject
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "SharedStreams", "src\DataStreamSuite\SharedStreams\SharedStreams.csproj", "{4E96E5CC-7791-40B3-A8A1-C34FBB736B3B}"
-EndProject
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "PubSub", "src\DataStreamSuite\PubSub\PubSub.csproj", "{51C40BA9-F226-4A35-939D-1ED6F5FF7299}"
-EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
 		Debug|x64 = Debug|x64
@@ -98,38 +90,6 @@ Global
 		{2B8C5D01-FF78-4BFA-B332-5E430586DAF9}.Release|x64.Build.0 = Release|x64
 		{2B8C5D01-FF78-4BFA-B332-5E430586DAF9}.RelWithDebInfo|x64.ActiveCfg = Release|x64
 		{2B8C5D01-FF78-4BFA-B332-5E430586DAF9}.RelWithDebInfo|x64.Build.0 = Release|x64
-		{4E4F491F-C688-43C4-88DA-AC92BC5FA1B8}.Debug|x64.ActiveCfg = Debug|Any CPU
-		{4E4F491F-C688-43C4-88DA-AC92BC5FA1B8}.Debug|x64.Build.0 = Debug|Any CPU
-		{4E4F491F-C688-43C4-88DA-AC92BC5FA1B8}.MinSizeRel|x64.ActiveCfg = Debug|Any CPU
-		{4E4F491F-C688-43C4-88DA-AC92BC5FA1B8}.MinSizeRel|x64.Build.0 = Debug|Any CPU
-		{4E4F491F-C688-43C4-88DA-AC92BC5FA1B8}.Release|x64.ActiveCfg = Release|Any CPU
-		{4E4F491F-C688-43C4-88DA-AC92BC5FA1B8}.Release|x64.Build.0 = Release|Any CPU
-		{4E4F491F-C688-43C4-88DA-AC92BC5FA1B8}.RelWithDebInfo|x64.ActiveCfg = Debug|Any CPU
-		{4E4F491F-C688-43C4-88DA-AC92BC5FA1B8}.RelWithDebInfo|x64.Build.0 = Debug|Any CPU
-		{2AC54ADC-3246-427E-9CA9-FEA2DBCB9432}.Debug|x64.ActiveCfg = Debug|Any CPU
-		{2AC54ADC-3246-427E-9CA9-FEA2DBCB9432}.Debug|x64.Build.0 = Debug|Any CPU
-		{2AC54ADC-3246-427E-9CA9-FEA2DBCB9432}.MinSizeRel|x64.ActiveCfg = Debug|Any CPU
-		{2AC54ADC-3246-427E-9CA9-FEA2DBCB9432}.MinSizeRel|x64.Build.0 = Debug|Any CPU
-		{2AC54ADC-3246-427E-9CA9-FEA2DBCB9432}.Release|x64.ActiveCfg = Release|Any CPU
-		{2AC54ADC-3246-427E-9CA9-FEA2DBCB9432}.Release|x64.Build.0 = Release|Any CPU
-		{2AC54ADC-3246-427E-9CA9-FEA2DBCB9432}.RelWithDebInfo|x64.ActiveCfg = Debug|Any CPU
-		{2AC54ADC-3246-427E-9CA9-FEA2DBCB9432}.RelWithDebInfo|x64.Build.0 = Debug|Any CPU
-		{4E96E5CC-7791-40B3-A8A1-C34FBB736B3B}.Debug|x64.ActiveCfg = Debug|Any CPU
-		{4E96E5CC-7791-40B3-A8A1-C34FBB736B3B}.Debug|x64.Build.0 = Debug|Any CPU
-		{4E96E5CC-7791-40B3-A8A1-C34FBB736B3B}.MinSizeRel|x64.ActiveCfg = Debug|Any CPU
-		{4E96E5CC-7791-40B3-A8A1-C34FBB736B3B}.MinSizeRel|x64.Build.0 = Debug|Any CPU
-		{4E96E5CC-7791-40B3-A8A1-C34FBB736B3B}.Release|x64.ActiveCfg = Release|Any CPU
-		{4E96E5CC-7791-40B3-A8A1-C34FBB736B3B}.Release|x64.Build.0 = Release|Any CPU
-		{4E96E5CC-7791-40B3-A8A1-C34FBB736B3B}.RelWithDebInfo|x64.ActiveCfg = Debug|Any CPU
-		{4E96E5CC-7791-40B3-A8A1-C34FBB736B3B}.RelWithDebInfo|x64.Build.0 = Debug|Any CPU
-		{51C40BA9-F226-4A35-939D-1ED6F5FF7299}.Debug|x64.ActiveCfg = Debug|Any CPU
-		{51C40BA9-F226-4A35-939D-1ED6F5FF7299}.Debug|x64.Build.0 = Debug|Any CPU
-		{51C40BA9-F226-4A35-939D-1ED6F5FF7299}.MinSizeRel|x64.ActiveCfg = Debug|Any CPU
-		{51C40BA9-F226-4A35-939D-1ED6F5FF7299}.MinSizeRel|x64.Build.0 = Debug|Any CPU
-		{51C40BA9-F226-4A35-939D-1ED6F5FF7299}.Release|x64.ActiveCfg = Release|Any CPU
-		{51C40BA9-F226-4A35-939D-1ED6F5FF7299}.Release|x64.Build.0 = Release|Any CPU
-		{51C40BA9-F226-4A35-939D-1ED6F5FF7299}.RelWithDebInfo|x64.ActiveCfg = Debug|Any CPU
-		{51C40BA9-F226-4A35-939D-1ED6F5FF7299}.RelWithDebInfo|x64.Build.0 = Debug|Any CPU
 	EndGlobalSection
 	GlobalSection(SolutionProperties) = preSolution
 		HideSolutionNode = FALSE

src/DataStreamSuite/ArithmeticExpressions/ArithmeticExpressions.csproj

@@ -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>

src/DataStreamSuite/BaseUtilities/BaseUtilities.csproj

@@ -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>

src/DataStreamSuite/BlueRegistry/BlueRegistry.csproj

@@ -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>

src/DataStreamSuite/BooleanExpressions/BooleanExpressions.csproj

@@ -1,14 +1,14 @@
 <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>
 
   <ItemGroup>

src/DataStreamSuite/BooleanExpressions/GplexBuffers.cs

@@ -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

src/DataStreamSuite/Bts.ColumnExpressions/Bts.ColumnExpressions.csproj

@@ -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>

src/DataStreamSuite/Bts.ColumnSortExpressions/Bts.ColumnSortExpressions.csproj

@@ -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>

src/DataStreamSuite/Bts.DataStreamWebApp.Client/.eslintrc.cjs

@@ -1,20 +0,0 @@
-module.exports = {
-  root: true,
-  env: { browser: true, es2020: true },
-  extends: [
-    'eslint:recommended',
-    'plugin:react/recommended',
-    'plugin:react/jsx-runtime',
-    'plugin:react-hooks/recommended',
-  ],
-  ignorePatterns: ['dist', '.eslintrc.cjs'],
-  parserOptions: { ecmaVersion: 'latest', sourceType: 'module' },
-  settings: { react: { version: '18.3.1' } },
-  plugins: ['react-refresh'],
-  rules: {
-    'react-refresh/only-export-components': [
-      'warn',
-      { allowConstantExport: true },
-    ],
-  },
-}

src/DataStreamSuite/Bts.DataStreamWebApp.Client/eslint.config.js

@@ -0,0 +1,36 @@
+import importPlugin from "eslint-plugin-import";
+import reactPkg from "eslint-plugin-react";
+const { configs: reactConfigs } = reactPkg;
+import js from "@eslint/js";
+import defineConfig from "./vite.config.js";
+
+export default [
+  js.configs.recommended,
+  importPlugin.flatConfigs.recommended,
+  reactConfigs.flat.recommended,
+  reactConfigs.flat["jsx-runtime"],
+  {
+    files: ["**/*.{js,jsx}"],
+    languageOptions: {
+      ecmaVersion: "latest",
+      sourceType: "module",
+      globals: {
+        console: "readonly"
+      }
+    },
+    settings: {
+      "import/resolver": {
+        vite: {
+          viteConfig: defineConfig({ mode: "development" })
+        }
+      }
+    },
+    rules: {
+      semi: "error",
+      "prefer-const": "error",
+      "no-unused-vars": "warn",
+      "import/no-dynamic-require": "warn",
+      "import/no-nodejs-modules": "warn",
+    }
+  }
+];

src/DataStreamSuite/Bts.DataStreamWebApp.Client/package.json

@@ -10,34 +10,37 @@
     "preview": "vite preview"
   },
   "dependencies": {
-    "@angular/material": "^18.0.4",
-    "@emotion/react": "^11.11.4",
-    "@emotion/styled": "^11.11.5",
-    "@fontsource/noto-sans": "^5.0.22",
-    "@material/data-table": "^15.0.0-canary.7f224ddd4.0",
-    "@mui/icons-material": "^5.15.20",
-    "@mui/material": "^5.15.20",
-    "@mui/x-data-grid": "^7.7.1",
-    "bulma": "^1.0.1",
+    "@angular/material": "^18.2.8",
+    "@emotion/react": "^11.13.3",
+    "@emotion/styled": "^11.13.0",
+    "@fontsource/noto-sans": "^5.1.0",
+    "@material/data-table": "^15.0.0-canary.423edc3dc.0",
+    "@mui/icons-material": "^6.1.4",
+    "@mui/material": "^6.1.4",
+    "@mui/x-data-grid": "^7.20.0",
+    "bulma": "^1.0.2",
     "classnames": "^2.5.1",
     "react": "^18.3.1",
-    "react-data-grid": "^7.0.0-beta.44",
+    "react-data-grid": "^7.0.0-beta.47",
     "react-data-table-component": "^7.6.2",
     "react-dom": "^18.3.1",
-    "react-json-view-lite": "^1.4.0",
+    "react-json-view-lite": "^1.5.0",
     "react-pro-sidebar": "^1.1.0",
-    "react-use-websocket": "^4.8.1",
-    "rpc-websockets": "^7.11.2"
+    "react-use-websocket": "^4.9.0",
+    "rpc-websockets": "^9.0.4"
   },
   "devDependencies": {
-    "@types/react": "^18.3.3",
-    "@types/react-dom": "^18.3.0",
-    "@vitejs/plugin-react": "^4.3.1",
-    "eslint": "^8.57.0",
-    "eslint-plugin-react": "^7.34.2",
-    "eslint-plugin-react-hooks": "^4.6.2",
-    "eslint-plugin-react-refresh": "^0.4.7",
-    "react-mui-sidebar": "^1.3.5",
-    "vite": "^5.2.13"
+    "@types/react": "^18.3.11",
+    "@types/react-dom": "^18.3.1",
+    "@vitejs/plugin-react": "^4.3.2",
+    "eslint": "^9.12.0",
+    "@eslint/js": "^9.12.0",
+    "eslint-plugin-import": "^2.31.0",
+    "eslint-plugin-react": "^7.37.1",
+    "eslint-plugin-react-hooks": "^5.0.0",
+    "eslint-plugin-react-refresh": "^0.4.12",
+    "eslint-import-resolver-vite": "^2.0.1",
+    "react-mui-sidebar": "^1.3.8",
+    "vite": "^5.4.9"
   }
 }

src/DataStreamSuite/Bts.DataStreamWebApp.Client/vite.config.js

@@ -29,13 +29,12 @@ if (!fs.existsSync(certFilePath) || !fs.existsSync(keyFilePath)) {
   }
 }
 
-const target = env.ASPNETCORE_HTTPS_PORT
-  ? `https://localhost:${env.ASPNETCORE_HTTPS_PORT}`
-  : env.ASPNETCORE_URLS
-    ? env.ASPNETCORE_URLS.split(';')[0]
-    : 'https://localhost:8443';
-
 export default defineConfig(({ $$command, mode, $$isSsrBuild, $$isPreview }) => {
+  const target = env.ASPNETCORE_HTTPS_PORT
+    ? `https://localhost:${env.ASPNETCORE_HTTPS_PORT}`
+    : env.ASPNETCORE_URLS
+      ? env.ASPNETCORE_URLS.split(';')[0]
+      : 'https://localhost:8443';
   return {
     plugins: [plugin()],
     resolve: {

src/DataStreamSuite/Bts.DataStreamWebApp.Server/Dockerfile

@@ -1,11 +1,13 @@
 FROM bluetradingsystems/linux_dotnet7
 
-ARG SOURCE_DIR="build/Release/bin/net7.0/linux-x64/publish"
+ARG CS_SOURCE_DIR="build/Release/bin/net7.0/linux-x64/publish"
+ARG CPP_SOURCE_DIR="install/data-stream-suite-linux"
 ARG WEB_ROOT="build/Bts.DataStreamWebApp.Client/production/dist"
 ARG CONF_FILE="src/DataStreamSuite/Bts.DataStreamWebApp.Server/spark.conf"
 
 RUN dotnet dev-certs https --trust
-COPY --chown=bts:bts "${SOURCE_DIR}" "bin"
+COPY --chown=bts:bts "${CPP_SOURCE_DIR}/lib" "bin"
+COPY --chown=bts:bts "${CS_SOURCE_DIR}" "bin"
 COPY --chown=bts:bts "${WEB_ROOT}" "bin/wwwroot"
 COPY --chown=bts:bts "${CONF_FILE}" ".local/share/bts/Bts.DataStreamWebApp.Server/conf/spark.conf"
 WORKDIR "/home/bts/bin"

src/DataStreamSuite/ColumnMapExpressions/ColumnMapExpressions.csproj

@@ -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>

src/DataStreamSuite/DataStream/BlueOrb/AddColumnsStream.cs

@@ -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);
-      }
-   }
-}

src/DataStreamSuite/DataStream/BlueOrb/CountStream.cs

@@ -1,49 +0,0 @@
-using System;
-
-namespace BCG {
-   [DataStreamUserRespresentation("CountStream")]
-   public class CountStream : ViewStream {
-      private DataPacket 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 += myHandleChanges;
-      }
-      protected override void myOnLastSubscriber() {
-         myVS.onChange -= 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, (dp as DataPacket).newRows.Count));
-         return retVal;
-      }
-
-
-   }
-}

src/DataStreamSuite/DataStream/BlueOrb/DateTimeExpanderStream.cs

@@ -1,38 +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, $"{inp_col}_seconds_of_day");
-            return rv;
-         };
-         ViewStream rs = new MapStream(parent_stream,
-         s => get_schema(s),
-         r => {
-            DateTime dt = r.get_datetime(inp_col);
-            IBlueTableSchema s = get_schema(r.schema);
-            MutableBlueRow rv = new MutableBlueRow(s, r);
-            rv.setValue($"{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);
-            return rv;
-         });
-         mySetRealSource(rs);
-      }
-   }
-}

src/DataStreamSuite/DataStream/BlueOrb/FilterStream.cs

@@ -1,157 +0,0 @@
-namespace bts.BlueOrb {
-   using BCG;
-   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) {
-            bool rv = true;
-            for (int i = 0; i < myCols.Length; i++) {
-               rv &= myRegExps[i].IsMatch(dr[myCols[i]] is DBNull ? "" : dr[myCols[i]].ToString());
-               if (!rv)
-                  return rv;
-            }
-            return rv;
-         }
-         #endregion
-      }
-      private BlueTable myLastFiredRows;
-      private IBlueRowCollection myLastReceivedRows;
-      private IStreamFilter myFilter;
-      private ViewStream myParentStream;
-      private string myFilterString;
-      private bool myUseNewFilter = false;// Configuration.get<DataStreamConfig>().UseNewFilter;
-
-      #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();
-            if (filter is IDynamicStreamFilter)
-               (filter as IDynamicStreamFilter).onFilterChange += new FilterChangeDelegate(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 += myHandleCallbacks;
-
-      protected override void myOnLastSubscriber() {
-         myLastFiredRows = null;
-         myParentStream.onChange -= myHandleCallbacks;
-      }
-
-      protected override void myFireEvent(object o) {
-         DataPacket dp = o as DataPacket;
-         if (myLastValue == null || dp.addedRows.Count + dp.deletedRows.Count > 0)
-            base.myFireEvent(o);
-      }
-      #endregion
-
-      private void myHandleCallbacks(object newValue) {
-         DataPacket retVal;
-         DataPacket arrivedPacket = newValue as DataPacket;
-         myLastReceivedRows = arrivedPacket.newRows;
-         if (myLastFiredRows != null) {
-            retVal = new DataPacket(myLastFiredRows, new BlueTable(myLastFiredRows.schema),
-               new BlueTable(myLastFiredRows.schema));
-            foreach (IBlueRow r in arrivedPacket.deletedRows)
-               if (myLastFiredRows.containsID((int)r["id"])) {
-                  myLastFiredRows.deleteRow(r);
-                  (retVal.deletedRows as BlueTable).addRow(r);
-               }
-            foreach (IBlueRow r in arrivedPacket.addedRows)
-               if (myFilter.filter(r)) {
-                  myLastFiredRows.addRow(r);
-                  (retVal.addedRows as BlueTable).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;
-      }
-   }
-}

src/DataStreamSuite/DataStream/BlueOrb/GroupByStream.cs

@@ -1,121 +0,0 @@
-using System;
-using System.Collections.Generic;
-using System.Diagnostics;
-using System.Linq;
-using System.Text.Json;
-
-using bts;
-//using bts.SilverPine;
-using BCG;
-
-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);
-               }
-               rv.addRows(out_rows);
-            }
-            return rv;
-         }
-         public string[] get_group_by_cols() {
-            return _groupby_cols_func();
-         }
-
-      }
-      private ViewStream _main_stream;
-      private INonIncGroupByEvaluator _groupby_func;
-      private BlueRowHasher _row_hasher;
-      private string[] _groupby_cols;
-      private Stopwatch _timer = new();
-      private int _n_total_fires = 0, _n_expensive_fires = 0;
-
-      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_col, string standard_group_by_text)
-      : this(parent_str, groupby_col, standard_group_by_text, String.Empty) { }
-
-      // this is the main constructor that does everything
-      public GroupByStream(ViewStream parent_str, string groupby_col, string standard_group_by_ops, string optional_sort_col) {
-         MultiRowOpHelper std_group_by = MultiRowOpHelper.parse_ops(standard_group_by_ops);
-         Func<string[]> groupby_cols_func = () => {
-            return String.IsNullOrEmpty(groupby_col) ? null : new string[] { groupby_col };
-         };
-         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);
-            return new IBlueRow[] { rv }.ToList();
-         };
-         ViewStream rs = new GroupByStream(parent_str, groupby_cols_func, evaluate_func);
-         mySetRealSource(rs);
-      }
-      public GroupByStream(ViewStream parent_str, string standard_group_by_text) :
-      this(parent_str, String.Empty, standard_group_by_text) {
-      }
-
-
-      protected override void myOnFirstSubscriber() { _main_stream.onChange += _main_stream_onchange; }
-
-      protected override void myOnLastSubscriber() { _main_stream.onChange -= _main_stream_onchange; }
-
-      private void _main_stream_onchange(object nv) {
-         DataPacket dp = nv as DataPacket;
-         ///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);
-         _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}");
-         }
-         // TODO,
-         if (total_state != null)
-            myFireEvent(new DataPacket(total_state, total_state, myLastValue == null ? new BlueTable(total_state.schema) : (myLastValue as DataPacket).newRows));
-      }
-   }
-}

src/DataStreamSuite/DataStream/BlueOrb/Join/SimpleJoinStream.cs

@@ -1,187 +0,0 @@
-namespace bts.BlueOrb {
-   using BCG;
-   using RowHash = System.Int32;
-   using System;
-   using System.Collections.Generic;
-   using System.Linq;
-   using System.Text;
-   using System.Threading.Tasks;
-   using System.Collections;
-   using System.Data.Entity.Core.Mapping;
-
-   [DataStreamUserRespresentation("JoinStream")]
-   public class SimpleJoinStream : ViewStream {
-      public class JoinBookkeepingData {
-         // initialized in cons
-         private readonly List<string> _join_col_names;
-         private readonly bool _is_left;
-         private readonly BlueRowHasher _hasher;
-         // initialized on first udpate         
-         private IBlueTableSchema _schema;
-         private int[] _join_cols;
-         private IDictionary<RowHash, List<IBlueRow>> _hash_row_map = new Dictionary<RowHash, List<IBlueRow>>();
-         
-         public JoinBookkeepingData(ViewStream vs, List<string> join_cols, bool is_left, BlueRowHasher row_hasher) {
-            _join_col_names = join_cols.Where (c => !String.IsNullOrEmpty(c)).ToList ();
-            _is_left = is_left;
-            _hasher = row_hasher;
-         }
-
-         public IBlueTableSchema schema => _schema;
-
-         public IDictionary<RowHash, List<IBlueRow>> rows => _hash_row_map;
-
-         public List<IBlueRow> get_matching_rows (int hash) {
-            List<IBlueRow> rv = null;
-            _hash_row_map.TryGetValue(hash, out rv);
-            return rv;
-         }
-
-         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(DataPacket dp) {
-            if (!ready) {               
-               _schema = dp.newRows.schema;
-               _join_cols = _join_col_names.Count == 0 ? new int[] { }: _join_col_names.Select(n => dp.schema[n].colNo).ToArray();
-            }
-            _hash_row_map.Clear();
-            foreach (IBlueRow r in dp.newRows) {
-               int hash = _get_hash(r);
-               List<IBlueRow> hash_rows = null;
-               if (!_hash_row_map.TryGetValue(hash, out hash_rows)) {
-                  hash_rows = new List<IBlueRow>();
-                  _hash_row_map.Add(hash, hash_rows);
-               }
-               hash_rows.Add(r);
-            }
-         }
-
-         public bool ready {
-            get {
-               return _schema != null;
-            }
-         }
-
-      }
-
-      private ViewStream _ls, _rs;
-      private JoinBookkeepingData _ldata, _rdata;
-      private ViewStreamDatabase _vsd;
-      private IBlueTableSchema _schema = null;
-
-      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, true, hasher);
-         _rdata = new JoinBookkeepingData(rs, rj_col_list, false, hasher);
-      }
-
-      protected override void myOnFirstSubscriber() {
-         _ls.onChange += _ls_onchange;
-         _rs.onChange += _rs_onchange;
-      }
-
-      private void _ls_onchange(object dp_obj) {
-         DataPacket dp = dp_obj as DataPacket;
-         _ldata.update_data(dp);
-         _form_and_fire();
-      }
-
-      private void _rs_onchange(object dp_obj) {
-         DataPacket dp = dp_obj as DataPacket ;
-         _rdata.update_data(dp);
-         _form_and_fire();
-      }
-
-      protected override void myOnLastSubscriber() {
-         _ls.onChange -= _ls_onchange;
-         _rs.onChange -= _rs_onchange;
-      }
-
-      private void _build_schema() {
-         if (_schema != null)
-            return;
-         List<ColumnInfo> cis = new List<ColumnInfo>();
-         cis.Add(new ColumnInfo("id", 0, TypeCode.Int32));
-         foreach (ColumnInfo ci in _ldata.schema.columnInfo) {
-            string col_name = _rdata.schema.contains_column(ci.colName) ? $"left_{ci.colName}" : ci.colName;
-            cis.Add(new ColumnInfo(col_name, cis.Count, ci.colType));
-         }
-         foreach (ColumnInfo ci in _rdata.schema.columnInfo) {
-            string col_name = _ldata.schema.contains_column(ci.colName) ? $"right_{ci.colName}" : ci.colName;
-            cis.Add(new ColumnInfo(col_name, cis.Count, ci.colType));
-         }
-         _schema = new BlueTableSchema($"{_ldata.schema.tableName}_join_{_rdata.schema.tableName}", cis.ToArray());
-      }
-
-      private void _form_and_fire() {
-         if (!_ldata.ready||!_rdata.ready)
-            return;
-         _build_schema();
-         List<object[]> res_rows = new List<object[]>();
-         
-         Action<object[], IBlueRow, bool> copy_row = (rval, r, is_left) => {
-            int offset = 1;
-            JoinBookkeepingData sdata = _ldata;
-            if (is_left) {
-               offset = 1;
-               sdata = _ldata;
-            } else {
-               sdata = _rdata;
-               offset = 1 + _ldata.schema.columnInfo.Length;
-            }
-            for (int i = 0; i < sdata.schema.columnInfo.Length; i++) {
-               rval[offset + i] = r[i];
-            }
-         };
-         Func<int, IBlueRow, object[]> build_row_array = (id, 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;
-         };
-         // 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 DataPacket);
-         myFireEvent(dp);
-      }
-
-   }
-}

src/DataStreamSuite/DataStream/BlueOrb/JsonSaverStream.cs

@@ -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;
-//      }
-//   }
-//}

src/DataStreamSuite/DataStream/BlueOrb/LiteralStream.cs

@@ -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));
-      }
-   }
-}

src/DataStreamSuite/DataStream/BlueOrb/MillisecondStream.cs

@@ -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;
-      }
-   }
-}

src/DataStreamSuite/DataStream/BlueOrb/MultiRowOpHelper.cs

@@ -1,161 +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);
-            default:
-               // TODO
-               Log.assert(false);
-               return Double.NaN;
-         }
-      }
-
-   }
-}

src/DataStreamSuite/DataStream/BlueOrb/MultiRowRollingMathStream.cs

@@ -1,40 +0,0 @@
-namespace bts.BlueOrb {
-   using BCG;
-
-   using System.Collections.Generic;
-   using System.Net;
-
-   [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) {
-         DataPacket dp = dp_obj as DataPacket;
-         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);
-            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);
-      }
-   }
-}

src/DataStreamSuite/DataStream/BlueOrb/ProjectStream.cs

@@ -1,188 +0,0 @@
-namespace bts.BlueOrb {
-   using BCG;
-   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 {
-            string mapped_to_col = null;
-            if (_project_data.mapped_to_orig_col_map.TryGetValue(col_name, out 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("The IBlueRow is readonly"); }
-
-      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;
-      private ProjectData _project_data = null;
-      //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) {
-         return new NewProjectRow(_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);
-      }
-
-   
-
-   }
-}

src/DataStreamSuite/DataStream/BlueOrb/PythonDataframeStream.cs

@@ -1,127 +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));
-         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
-   }
-}

src/DataStreamSuite/DataStream/BlueOrb/SchemaGuesserStream.cs

@@ -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);
-
-      }
-
-   }
-}

src/DataStreamSuite/DataStream/BlueOrb/SingleRowMathStream.cs

@@ -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
-   }
-}

src/DataStreamSuite/DataStream/BlueOrb/SortStream.cs

@@ -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);
-      }
-   }
-}

src/DataStreamSuite/DataStream/BlueOrb/TimeBasedRollingFilterStream.cs

@@ -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);
-      }
-   }
-}

src/DataStreamSuite/DataStream/BlueOrb/TopStream.cs

@@ -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);
-      }
-   }
-
-}

src/DataStreamSuite/DataStream/BlueOrb/UnionStream.cs

@@ -1,16 +0,0 @@
-namespace bts.BlueOrb {
-   using System;
-   using System.Collections.Generic;
-
-   using mbts;
-   using BCG;
-
-   [DataStreamUserRespresentation("UnionStream")]
-   public class UnionStream : ViewStream {
-      public UnionStream(ViewStream left_stream, ViewStream right_stream) {
-         ViewStream rs = new BCG.MutableAppendStream(left_stream, right_stream);
-         mySetRealSource(rs);
-      }
-   }
-
-}

src/DataStreamSuite/DataStream/DataStream.csproj

@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>net8.0</TargetFramework>
+    <TargetFramework>net7.0</TargetFramework>
     <Nullable>enable</Nullable>
   </PropertyGroup>
 
@@ -18,13 +18,11 @@
 
   <ItemGroup>
     <PackageReference Include="HtmlAgilityPack" Version="1.11.57" />
-    <PackageReference Include="IronPython" Version="3.4.2" />
     <PackageReference Include="Microsoft.Data.Analysis" Version="0.21.1" />
     <PackageReference Include="MongoDB.Bson" Version="2.23.1" />
     <PackageReference Include="MongoDB.Driver" Version="2.23.1" />
     <PackageReference Include="Parquet.Net" Version="5.0.1" />
     <PackageReference Include="System.Data.SQLite" Version="1.0.118" />
-    <PackageReference Include="MathNet.Numerics" Version="5.0.0" />
   </ItemGroup>
 
 </Project>

src/DataStreamSuite/DataStream/DataStreamExtensions.cs

@@ -2,26 +2,17 @@ namespace Bts.DataStream;
 
 using BCG;
 
-using bts.api.core;
-
-using Bts.DataStreamCore;
-
-using Microsoft.Extensions.Logging;
-
 using Spark.Core.Disposables;
 
 using System;
-using System.Collections;
-using System.Collections.Generic;
-using System.Linq;
 using System.Reactive.Linq;
 
 public static class DataStreamExtensions {
    public static ViewStream AsViewStream(this IObservable<DataPacket> source) =>
       source as ViewStream ?? new ObservableViewStream(source);
 
-   public static ViewStream AsViewStream<T>(this IObservable<IDataPacket<T>> source, string? name = null, ILogger? logger = null) where T : IBlueRow =>
-      source as ViewStream ?? new ObservableViewStream(source.Select(dp => new DataPacket(dp.newRows, dp.addedRows, dp.deletedRows)), name, logger);
+   public static ViewStream AsViewStream<T>(this IObservable<IDataPacket<T>> source) where T : IBlueRow =>
+      source as ViewStream ?? new ObservableViewStream(source.Select(dp => new DataPacket(dp.newRows, dp.addedRows, dp.deletedRows)));
 
    public static IObservable<DataPacket> AsObservable(this ViewStream source) {
       return source as IObservable<DataPacket> ?? Observable.Create<DataPacket>(Subscribe);
@@ -35,100 +26,4 @@ public static class DataStreamExtensions {
                $"Expected DataPacket, got {newValue?.GetType()}", nameof(newValue)));
       }
    }
-
-   public static IObservable<IDataPacket<T>> SelectDataPacket<T>(this IObservable<IDataPacket> source, Func<IBlueRow, T> selector) where T : IBlueRow =>
-      source.Select(dp => {
-         dp.get_new_added_deleted(out var newRows, out var addedRows, out var deletedRows);
-         return new DataPacket<T>(CastRows(newRows), CastRows(addedRows), CastRows(deletedRows));
-
-         IBlueRowCollection<T> CastRows(ICollection rows) =>
-            new BlueTableSelectorWrapper<T>(
-               rows as IBlueRowCollection ?? new BlueRowCollection(rows, dp.Schema), selector);
-      });
-
-   public static IObservable<TableUpdate<IBlueRow, int>> AsTables(this IObservable<IDataPacket> source) =>
-      source.AsTables<IBlueRow, int>(r => r, r => r.Id());
-
-   public static IObservable<TableUpdate<T, int>> AsTables<T>(this IObservable<IDataPacket> source, Func<IBlueRow, T> valueSelector) where T : IBlueRow =>
-      source.AsTables<T, int>(valueSelector, r => r.Id());
-
-   public static IObservable<TableUpdate<T, int>> AsTables<T>(
-      this IObservable<IDataPacket> source, Func<IBlueRow, T> valueSelector, Func<T, int> keySelector) =>
-      source.AsTables<T, int>(valueSelector, keySelector);
-
-   public static IObservable<TableUpdate<T, TKey>> AsTables<T, TKey>(
-      this IObservable<IDataPacket> source, Func<IBlueRow, T> valueSelector, Func<T, TKey> keySelector, Func<IBlueRow, TKey>? rowKeySelector = null) where TKey : IEquatable<TKey> {
-      rowKeySelector ??= r => keySelector(valueSelector(r));
-      return source.Scan(TableUpdate<T, TKey>.mk_empty(keySelector), (res, dp) => {
-         var bd = res.to_builder();
-         dp.get_new_added_deleted(out var newRows, out var addedRows, out var deletedRows);
-         foreach (IBlueRow r in addedRows) {
-            bd.add_or_update(valueSelector(r));
-         }
-         foreach (IBlueRow r in deletedRows) {
-            bd.remove(rowKeySelector(r));
-         }
-         return bd.to_table();
-      });
-   }
-
-   public static IObservable<IDataPacket<T>> AsDataPackets<T>(this IObservable<TableUpdate<T, int>> source, IBlueTableSchema schema) where T : IBlueRow =>
-      source.Scan(
-         (Table: new BlueTableImmutable<T>(schema), Dp: (IDataPacket<T>)DataPacket<T>.Empty(schema)),
-         (res, table) => {
-            var bd = res.Table.ToDataPacketBuilder();
-            foreach (var r in table.removed) {
-               bd.Remove(r.Id());
-            }
-            foreach (var r in table.added) {
-               bd.AddOrUpdate(r);
-            }
-            var resDp = bd.ToDataPacketT(out var newRows, out var addedRows, out var deletedRows);
-            return (newRows, resDp);
-         })
-         .Where(t => t.Dp.addedRows.Any() || t.Dp.deletedRows.Any())
-         .Select(t => t.Dp);
-
-   public static ViewStream AsViewStream<T>(this IObservable<TableUpdate<T, int>> source, IBlueTableSchema schema) where T : IBlueRow =>
-      source.AsDataPackets(schema).AsViewStream();
-
-   public static int ResolveIndices(this IBlueTableSchema schema, string name) {
-      var indices = ResolveIndices(schema, new[] { name });
-      return indices[0];
-   }
-
-   public static (int, int) ResolveIndices(this IBlueTableSchema schema, string name1, string name2) {
-      var indices = ResolveIndices(schema, new[] { name1, name2 });
-      return (indices[0], indices[1]);
-   }
-
-   public static (int, int, int) ResolveIndices(this IBlueTableSchema schema, string name1, string name2, string name3) {
-      var indices = ResolveIndices(schema, new[] { name1, name2, name3 });
-      return (indices[0], indices[1], indices[2]);
-   }
-
-   public static (int, int, int, int) ResolveIndices(this IBlueTableSchema schema, string name1, string name2, string name3, string name4) {
-      var indices = ResolveIndices(schema, new[] { name1, name2, name3, name4 });
-      return (indices[0], indices[1], indices[2], indices[3]);
-   }
-
-   public static int[] ResolveIndices(this IBlueTableSchema schema, string[] columnNames) {
-      var columns = schema.columnInfo;
-      var indices = new int[columnNames.Length];
-      int nResolved = 0;
-      for (int i = 0; i < columnNames.Length; i++) {
-         int origNResolved = nResolved;
-         for (int j = 0; j < columns.Length; j++) {
-            if (columns[j].colName == columnNames[i]) {
-               indices[i] = j;
-               nResolved++;
-               break;
-            }
-         }
-         if (nResolved == origNResolved) {
-            throw new ArgumentException($"No column named '{columnNames[i]}'", nameof(schema));
-         }
-      }
-      return indices;
-   }
 }

src/DataStreamSuite/DataStream/Misc/DSLStream.cs

@@ -12,7 +12,8 @@ namespace bts.SilverPine {
       public DSLStream(string dsl) {
          Log.Gen.info($"DSLStream.cons dsl: {dsl}");
          _dsl = dsl;
-         ViewStream rs = build_stream(dsl) ?? new LiteralStream("error", $"msg:invalid dsl");
+         ViewStream rs = build_stream(dsl);
+         rs = rs ?? new LiteralStream("error", $"msg:invalid dsl \"{dsl}\"");
          mySetRealSource(rs);
       }
 
@@ -28,4 +29,4 @@ namespace bts.SilverPine {
          }
       }
    }
-}
+}

src/DataStreamSuite/DataStream/ObservableViewStream.cs

@@ -4,21 +4,14 @@ using BCG;
 
 using bts;
 
-using Microsoft.Extensions.Logging;
-
 using System;
 
 public class ObservableViewStream : ViewStream, IObservable<DataPacket>, IDisposable {
    readonly IObservable<DataPacket> source;
-   readonly string? name;
-   readonly ILogger? logger;
    IDisposable? subscription;
 
-   public ObservableViewStream(IObservable<DataPacket> source, string? name = null, ILogger? logger = null) {
+   public ObservableViewStream(IObservable<DataPacket> source) =>
       this.source = source;
-      this.name = name;
-      this.logger = logger;
-   }
 
    public void Dispose() {
       GC.SuppressFinalize(this);
@@ -30,13 +23,7 @@ public class ObservableViewStream : ViewStream, IObservable<DataPacket>, IDispos
 
    protected override void myOnFirstSubscriber() {
       Log.isnull(subscription);
-      subscription = source.Subscribe(myFireEvent, OnError, OnCompleted);
-
-      void OnError(Exception exception) =>
-         logger?.LogError("Error in ObservableViewStream. name: {Name}, error: {Exception}", name, exception);
-
-      void OnCompleted() =>
-         logger?.LogInformation("ObservableViewStream completed. name: {Name}", name);
+      subscription = source.Subscribe(myFireEvent);
    }
 
    protected override void myOnLastSubscriber() {

src/DataStreamSuite/DataStream/Primitives/AddColumns/AddColumnsStream.cs

@@ -1,51 +1,33 @@
 using System;
-using System.Collections.Generic;
 
-namespace BCG {   
+namespace BCG {
    public class AddColumnsStream : ViewStream {
-      public static Tuple<string, Type, object> parse_single_tok(string exp) {
+      public static Tuple<string, Type, object> parse_exp(string exp) {
          string[] toks = exp.Split(':');
-         string col_name = toks[0].Trim();
-         string col_value = toks[1].Trim();
+         string col_name = toks[0];
+         string col_value = toks[1];
          Tuple<Type, object> tup = BlueDataUtility.guess_type(col_value);
          return Tuple.Create(col_name, tup.Item1, tup.Item2);
       }
 
-      public static List<Tuple<string, Type, object>> parse_exp(string exp) {
-         string[] toks = exp.Split(",");
-         List<Tuple<string, Type, object>> rv = new List<Tuple<string, Type, object>>();
-         foreach (string s in toks) {
-            var tup = parse_single_tok(s.Trim());
-            rv.Add(tup);
-         }
-         return rv;
-      }
-
       private Tuple<string, Type, object> _new_col;
-      private List<Tuple<string, Type, object>> _new_col_map;
       private IBlueTableSchema _out_schema;
 
       public AddColumnsStream(ViewStream vs, string col_def) {
-         _new_col_map = parse_exp(col_def);
+         _new_col = parse_exp(col_def);
          ViewStream rs = new MapStream(vs, (IBlueTableSchema s) => _get_schema(s), (IBlueRow r) => _map(r));
          mySetRealSource(rs);
       }
 
       private IBlueTableSchema _get_schema(IBlueTableSchema input_schema) {
-         if (_out_schema == null) {
-            _out_schema = input_schema;
-            foreach (var m in _new_col_map) {
-               _out_schema = BlueDataUtility.add_column(_out_schema, m.Item1, m.Item2);
-            }
-         }
+         if (_out_schema == null)
+            _out_schema = BlueDataUtility.add_column(input_schema, _new_col.Item1, _new_col.Item2);
          return _out_schema;
       }
 
       private IBlueRow _map(IBlueRow r) {
          MutableBlueRow rv = new MutableBlueRow(_get_schema(r.schema), r);
-         foreach (var m in _new_col_map) {
-            rv.setValue(m.Item1, m.Item3);
-         }
+         rv.setValue(_new_col.Item1, _new_col.Item3);
          return rv;
       }
    }

src/DataStreamSuite/DataStream/Primitives/Count/CountStream.cs

@@ -1,22 +1,25 @@
 using System;
 
-namespace bts.BlueOrb {
-   using BCG;
-   [DataStreamUserRespresentation("CountStream")]
-   public class CountStream : ViewStream {
+namespace BCG
+{
+   [DataStreamUserRespresentation ("count")]
+	public class CountStream : ViewStream
+	{
       private DataPacket myLastFiredDataPacket;
-      private IBlueTableSchema mySchema = new BlueTableSchema("count",
-         new ColumnInfo("id", 0, typeof(int)),
-         new ColumnInfo("count", 1, typeof(int)));
+      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) {
+      public CountStream (ViewStream vs)
+      {
          myVS = vs;
       }
 
-      public CountStream(string tableName)
-         : this(new TableStream(tableName)) { }
+      public CountStream (string tableName)
+         : this (new TableStream (tableName))
+      {}
 
       protected override void myOnFirstSubscriber () =>
          myVS.onChange += myHandleChanges;
@@ -24,22 +27,24 @@ namespace bts.BlueOrb {
       protected override void myOnLastSubscriber () =>
          myVS.onChange -= myHandleChanges;
 
-      private void myHandleChanges(object newValue) {
-         myFireEvent(
+      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), 
+                  new BlueTable (mySchema))
                   :
-                  new DataPacket(myGetRows(newValue, ++myId), myGetRows(newValue, myId),
+                  new DataPacket (myGetRows (newValue, ++myId), myGetRows (newValue, myId), 
                   myLastFiredDataPacket.newRows)
             );
       }
 
-      private IBlueRowCollection myGetRows(object dp, int id) {
-         BlueTable retVal = new BlueTable(mySchema);
+      private IBlueRowCollection myGetRows (object dp, int id)
+      {
+         BlueTable retVal = new BlueTable (mySchema);
          retVal.addRow
-            (new BlueRow(mySchema, id, (dp as DataPacket).newRows.Count));
+            (new BlueRow (mySchema, id, (dp as DataPacket).newRows.Count));
          return retVal;
       }
 

src/DataStreamSuite/DataStream/Primitives/Crushing/CrushingStream.cs

@@ -19,7 +19,7 @@ namespace BCG
             for (int i = 0; i < myToCrush.Length; ++i)
             {
                 int tempI = i;
-                myDelegates[tempI] = o => myHandleChange(tempI, ((DataPacket)o).newRows);
+                myDelegates[tempI] = new((o) => { myHandleChange(tempI, ((DataPacket)o).newRows); });
             }
         }
 

src/DataStreamSuite/DataStream/Primitives/Filter/FilterStream.cs

@@ -8,20 +8,25 @@ using mbts.config;
 using System;
 using System.Text.RegularExpressions;
 
-namespace BCG.StreamWorld.Addition {
-   [DataStreamUserRespresentation(false)]
-   public class FilterStream : ViewStream {
+namespace BCG.StreamWorld.Addition
+{
+   [DataStreamUserRespresentation (false)]
+   public class FilterStream : ViewStream
+   {
       private ViewStream myBaseStream;
       private BlueTable myBaseTable, myStateTable;
       private IStreamFilter myFilter;
 
       public FilterStream(ViewStream vs)
-         : this(vs, "1=1") { }
+         : this(vs, "1=1")
+      { }
 
       public FilterStream(ViewStream vs, string filterExp)
-         : this(vs, new BooleanExpressionFilter(filterExp)) { }
+         : this(vs, new BooleanExpressionFilter(filterExp))
+      { }
 
-      public FilterStream(ViewStream vs, IStreamFilter filter) {
+      public FilterStream(ViewStream vs, IStreamFilter filter)
+      {
          myBaseStream = vs;
          myFilter = filter;
          vs.ErrorChanged += OnError;
@@ -30,8 +35,10 @@ namespace BCG.StreamWorld.Addition {
       }
 
 
-      protected override void myOnFirstSubscriber() =>
+      protected override void myOnFirstSubscriber()
+      {
          myBaseStream.onChange += myHandleChanges;
+      }
 
       protected override void myOnLastSubscriber()
       {
@@ -50,19 +57,23 @@ namespace BCG.StreamWorld.Addition {
          return false;
       }
 
-      private void myHandleChanges(object newValue) {
+      private void myHandleChanges(object newValue)
+      {
          try {
             DataPacket dp = newValue as DataPacket;
-            if (myStateTable == null) {
+            if (myStateTable == null)
+            {
                bts.Log.assert(myBaseTable == null);
                myStateTable = new BlueTable(dp.schema);
                myBaseTable = new BlueTable(dp.schema);
             }
             BlueTable dels = new BlueTable(dp.schema),
                         adds = new BlueTable(dp.schema);
-            foreach (IBlueRow r in dp.deletedRows) {
+            foreach (IBlueRow r in dp.deletedRows)
+            {
                myBaseTable.deleteRow(r);
-               if (myStateTable.containsID((int)r["id"])) {
+               if (myStateTable.containsID((int)r["id"]))
+               {
                   dels.addRow(r);
                   myStateTable.deleteRow(r);
                }
@@ -74,17 +85,21 @@ namespace BCG.StreamWorld.Addition {
                   myStateTable.addRow(r);
                }
             }
-            if ((dels.Count > 0 || adds.Count > 0) || (myLastValue == null))
+            if ((dels.Count > 0 || adds.Count > 0) || (myLastValue == null)) {
                myFireEvent(new DataPacket(myStateTable, adds, dels));
+            }
          } catch (Exception ex) {
             OnError(ex);
          }
       }
 
-      public IStreamFilter filter {
-         set {
+      public IStreamFilter filter
+      {
+         set
+         {
             myFilter = value;
-            if (myBaseTable != null) {
+            if (myBaseTable != null)
+            {
                IBlueRowCollection oldState = new BlueTable(myStateTable);
                myStateTable.clear();
                // If the filter throws an exception, we can rethrow it as a StreamFilterException
@@ -230,31 +245,27 @@ namespace BCG
       }
       #endregion
 
-      private void myHandleCallbacks(object newValue)
-      {
+      private void myHandleCallbacks(object newValue) {
          DataPacket retVal;
          DataPacket arrivedPacket = newValue as DataPacket;
          myLastReceivedRows = arrivedPacket.newRows;
          try {
-            if (myLastFiredRows != null)
-            {
+            if (myLastFiredRows != null) {
                retVal = new DataPacket(myLastFiredRows, new BlueTable(myLastFiredRows.schema),
                   new BlueTable(myLastFiredRows.schema));
-               foreach (IBlueRow r in arrivedPacket.deletedRows)
-                  if (myLastFiredRows.containsID((int)r["id"]))
-                  {
+               foreach (IBlueRow r in arrivedPacket.deletedRows) {
+                  if (myLastFiredRows.containsID((int)r["id"])) {
                      myLastFiredRows.deleteRow(r);
                      (retVal.deletedRows as BlueTable).addRow(r);
                   }
-               foreach (IBlueRow r in arrivedPacket.addedRows)
-                  if (filterRow(r))
-                  {
+               }
+               foreach (IBlueRow r in arrivedPacket.addedRows) {
+                  if (filterRow(r)) {
                      myLastFiredRows.addRow(r);
                      (retVal.addedRows as BlueTable).addRow(r);
                   }
-            }
-            else
-            {
+               }
+            } else {
                myLastFiredRows = new BlueTable(arrivedPacket.schema);
                retVal = new DataPacket(myLastFiredRows, myLastFiredRows, new BlueTable(myLastFiredRows.schema));
                foreach (IBlueRow r in arrivedPacket.newRows)
@@ -280,18 +291,19 @@ namespace BCG
                myFilter = value;
                if (numberOfSubscribers > 0)
                {
-                   if (myLastReceivedRows != null)
-                   {
+                  if (myLastReceivedRows != null) {
                      try {
-                       BlueTable nRows = new BlueTable(myLastReceivedRows.schema);
-                       foreach (IBlueRow r in myLastReceivedRows)
-                           if (filterRow(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));
+                        BlueTable nRows = new BlueTable(myLastReceivedRows.schema);
+                        foreach (IBlueRow r in myLastReceivedRows) {
+                           if (filterRow(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));
                      } catch (Exception ex) {
                         OnError(ex);
                      }
@@ -324,10 +336,8 @@ namespace BCG
          try {
             return myFilter.filter(r);
          } catch (Exception ex) {
-            Log.Gen.error($"FilterStream delegate threw exception: {ex}");
-            OnError(new StreamFilterException(StreamId, StreamName, null, ex, r));
+            throw new StreamFilterException(StreamId, StreamName, null, ex, r);
          }
-         return false;
       }
    }
 }

src/DataStreamSuite/DataStream/Primitives/Filter/NullFilterStream.cs

@@ -4,8 +4,6 @@ namespace bts.SilverPine {
    using System;
 
    public class NullFilterStream : ViewStream {
-      public NullFilterStream(ViewStream parent_str, string col_name)
-      : this(parent_str, col_name, true) { }
       public NullFilterStream(ViewStream parent_str, string col_name, bool filter_out_doublenans = false) {
          ViewStream rs = new FilterStream(parent_str,
          r => {

src/DataStreamSuite/DataStream/Primitives/Filter/TimeBasedFilter.cs

@@ -52,14 +52,14 @@ namespace BCG {
       }
 
       public TimeBasedFilter(ViewStreamDatabase vsd, string rowTimeColumnName, TimeSpan rowTimeToLive)
-      : this(vsd, rowTimeColumnName, rowTimeToLive, rowTimeToLive) {
+      : this(vsd, rowTimeColumnName, rowTimeToLive, new TimeSpan(0, 1, 0) /* 1 minute */) {
       }
 
-      public TimeBasedFilter(ViewStreamDatabase vsd, string rowTimeColumnName, TimeSpan rowTimeToLive, TimeSpan filter_period) {
+      public TimeBasedFilter(ViewStreamDatabase vsd, string rowTimeColumnName, TimeSpan rowTimeToLive, TimeSpan filterFrequency) {
          myVsd = vsd;
          _time_col = rowTimeColumnName;
          _ttl = rowTimeToLive;
-         _filter_period = filter_period;
+         myFilterFrequency = filterFrequency;
          myNextFilter = DateTime.MinValue;
 
          // add worker
@@ -92,7 +92,7 @@ namespace BCG {
             // fire event
             onFilterChange?.Invoke();
 
-            myNextFilter = now.Add(_filter_period);
+            myNextFilter = now.Add(myFilterFrequency);
          }
       }
       #endregion
@@ -108,7 +108,7 @@ namespace BCG {
       private ViewStreamDatabase myVsd;
       private string _time_col;
       private TimeSpan _ttl;
-      private TimeSpan _filter_period;
+      private TimeSpan myFilterFrequency;
       private DateTime myNextFilter;
       #endregion
    }

src/DataStreamSuite/DataStream/Primitives/GroupBy/GroupByBundle.cs

@@ -1,126 +0,0 @@
-namespace bts.SilverPine {
-   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,
-      //IsEdgeDiff,
-   }
-   public class MultiRowOpHelper {
-      public readonly List<Tuple<string, MultiRowOp>> operations;
-
-      public static MultiRowOpHelper parse(string text) {
-         // text is inp_col: op, inp_col: op, inp_col:op
-         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_;
-      }
-
-      public static IBlueRow group_by(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;
-      }
-
-      // 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 col_vals.Sum() / col_vals.Count();
-            case MultiRowOp.Sum:
-               return col_vals.Sum();
-            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);
-            default:
-               // TODO
-               Log.assert(false);
-               return Double.NaN;
-         }
-      }
-
-   }
-}

src/DataStreamSuite/DataStream/Primitives/GroupBy/GroupByStream.cs

@@ -5,7 +5,7 @@ using System.Collections.Generic;
 using System.Linq;
 
 namespace BCG {
-   internal class GroupByStream : MethodDrivenStream {
+   public class GroupByStream : MethodDrivenStream {
       private class MyFuncGroupByEvaluator : IGroupByEvaluator {
          private string[] _groupby_cols;
          private Func<DataPacket, IBlueRow> _groupby_func;

src/DataStreamSuite/DataStream/Primitives/GroupBy/NonIncremental/AggregationSteam.cs

@@ -1,20 +0,0 @@
-namespace bts.SilverPine {
-   using BCG;
-
-   using System;
-
-   [DataStreamUserRespresentation("AggregationStream")]
-   public class AgregationStream : ViewStream {
-
-      public AgregationStream(ViewStream parent_str, string operation_txt) {
-         ViewStream rs = new NonIncGroupByStream(parent_str, String.Empty, operation_txt);
-         mySetRealSource(rs);
-      }
-
-      public AgregationStream(ViewStream parent_str, string groupby_col, string operation_txt) {
-         ViewStream rs = new NonIncGroupByStream(parent_str, groupby_col, operation_txt);
-         mySetRealSource(rs);
-      }
-   }
-
-}

src/DataStreamSuite/DataStream/Primitives/GroupBy/NonIncremental/NonIncGroupByStream.cs

@@ -2,13 +2,10 @@
 using System.Collections.Generic;
 using System.Diagnostics;
 using System.Linq;
-using System.Text.Json;
 
 using bts;
-using bts.SilverPine;
 
 namespace BCG {
-   //[DataStreamUserRespresentation("AggregateStream")]
    public class NonIncGroupByStream : ViewStream {
       private class DelNonIncGroupByEvaluator : INonIncGroupByEvaluator {
          Func<string[]> _groupby_cols_func;
@@ -46,34 +43,13 @@ namespace BCG {
          _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);
+         _row_hasher = new BlueRowHasher(_groupby_cols.Length);
       }
 
       public NonIncGroupByStream(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 NonIncGroupByStream(ViewStream parent_str, string groupby_col, string standard_group_by_text)
-      : this(parent_str, groupby_col, standard_group_by_text, String.Empty) { }
-
-      public NonIncGroupByStream(ViewStream parent_str, string groupby_col, string standard_group_by_text, string optional_sort_col) {
-         MultiRowOpHelper std_group_by = MultiRowOpHelper.parse(standard_group_by_text);
-         Func<string[]> groupby_cols_func = () => {
-            return String.IsNullOrEmpty(groupby_col) ? null : new string[] { groupby_col };
-         };
-         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));
-            IBlueRow rv = MultiRowOpHelper.group_by(group_rows, std_group_by);
-            return new IBlueRow[] { rv }.ToList();
-         };
-         ViewStream rs = new NonIncGroupByStream(parent_str, groupby_cols_func, evaluate_func);
-         mySetRealSource(rs);
-      }
-      public NonIncGroupByStream(ViewStream parent_str, string standard_group_by_text) :
-      this(parent_str, String.Empty, standard_group_by_text) {
-      }
-
 
       protected override void myOnFirstSubscriber() { _main_stream.onChange += _main_stream_onchange; }
 
@@ -107,9 +83,7 @@ namespace BCG {
             Log.DataFlow.info(
                $"Time to evaluate {grouped_rows.Count} groups {_timer.ElapsedMilliseconds}ms, ratio {_n_expensive_fires}/{_n_total_fires}");
          }
-         // TODO,
-         if (total_state != null)
-            myFireEvent(new DataPacket(total_state, total_state, myLastValue == null ? new BlueTable(total_state.schema) : (myLastValue as DataPacket).newRows));
+         myFireEvent(new DataPacket(total_state, total_state, myLastValue == null ? new BlueTable(total_state.schema) : (myLastValue as DataPacket).newRows));
       }
    }
 }

src/DataStreamSuite/DataStream/Primitives/Join/FullJoinStream.cs

@@ -1,31 +1,31 @@
-//using System;
-//using System.Collections.Generic;
-//using System.Linq;
-//using System.Text;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
 
-//namespace BCG
-//{
-//   public class FullJoinStream : ViewStream
-//   {
-//      private ViewStream myMainStream;
-//      public FullJoinStream(ViewStream v1, string joinCol1, string cmExp1,
-//         ViewStream v2, string joinCol2, string cmExp2, string empty_col)
-//      {
-//         myMainStream = new LeftJoinStream(v1, joinCol1, cmExp1, v2, joinCol2, cmExp2);
-//         ViewStream filtered = new LeftJoinStream(v2, joinCol2, cmExp2, v1, joinCol1, cmExp1);
-//         filtered = new FilterStream(filtered, String.Format("{0}=null", empty_col));
-//         myMainStream = new AppendStream(myMainStream, filtered);
-//      }
+namespace BCG
+{
+   public class FullJoinStream : ViewStream
+   {
+      private ViewStream myMainStream;
+      public FullJoinStream(ViewStream v1, string joinCol1, string cmExp1,
+         ViewStream v2, string joinCol2, string cmExp2, string empty_col)
+      {
+         myMainStream = new LeftJoinStream(v1, joinCol1, cmExp1, v2, joinCol2, cmExp2);
+         ViewStream filtered = new LeftJoinStream(v2, joinCol2, cmExp2, v1, joinCol1, cmExp1);
+         filtered = new FilterStream(filtered, String.Format("{0}=null", empty_col));
+         myMainStream = new AppendStream(myMainStream, filtered);
+      }
 
-//      protected override void myOnFirstSubscriber()
-//      {
-//         myMainStream.onChange += myHandleMainStreamChange;
-//      }
+      protected override void myOnFirstSubscriber()
+      {
+         myMainStream.onChange += myHandleMainStreamChange;
+      }
 
-//      private void myHandleMainStreamChange(object newData)
-//      {
-//         IBlueRowCollection result = (newData as DataPacket).newRows;
-//         myFireEvent(new DataPacket(result, result, myLastValue == null ? new BlueTable(result.schema) : (myLastValue as DataPacket).newRows));
-//      }
-//   }
-//}
+      private void myHandleMainStreamChange(object newData)
+      {
+         IBlueRowCollection result = (newData as DataPacket).newRows;
+         myFireEvent(new DataPacket(result, result, myLastValue == null ? new BlueTable(result.schema) : (myLastValue as DataPacket).newRows));
+      }
+   }
+}

src/DataStreamSuite/DataStream/Primitives/Join/NonIncremental/NonIncJoinBookkeeper.cs

@@ -1,12 +1,10 @@
 using bts;
-using bts.collections;
 
 using mbts;
 
 using System;
 using System.Collections.Generic;
 using System.Diagnostics;
-using System.Linq;
 using System.Security.Cryptography;
 
 namespace BCG {
@@ -37,47 +35,14 @@ namespace BCG {
          _is_tag_along = _join_spec.join_col_names.Length == 0;
       }
 
-      private bool _filled_missing_data = false;
-      private void _fill_missing_data(DataPacket dp) {
-         if (_filled_missing_data)
-            return;
-         Func<string[], bool> null_or_empty = (str_arr) => {
-            if (str_arr == null || str_arr.Length == 0)
-               return true;
-            foreach (string s in str_arr) {
-               if (!String.IsNullOrEmpty(s)) {
-                  return false;
-               }
-            }
-            return true;
-         };
-         Func<string[], string[]> remove_bad_cols = (col_names) => {
-            HashSet<string> schema_col_map = new HashSet<string>(dp.schema.columnNames);
-            List<string> cols_list = new List<string>(col_names);
-            cols_list.RemoveWhere(c => !schema_col_map.Contains(c));
-            return cols_list.ToArray();
-         };
-         if (null_or_empty(_join_spec.data_col_names)) {
-            _join_spec.data_col_names = dp.schema.columnNames;
-         }
-         _join_spec.data_col_names = remove_bad_cols(_join_spec.data_col_names);
-         if (null_or_empty(_join_spec.data_col_names)) {
-            _join_spec.data_col_names = dp.schema.columnNames;
-         }
-         if (null_or_empty(_join_spec.projected_col_names)) {
-            _join_spec.projected_col_names = _join_spec.data_col_names;
-         }
-      }
-
       public void init() {
          _join_spec.stream.onChange += _on_stream_cb;
       }
 
       public void _on_stream_cb(object dp_obj) {
-         //Log.Gen.info($"NonIncJoinBookkeeper._on_stream_cb dp_obj: {dp_obj}");
+         Log.Gen.info($"NonIncJoinBookkeeper._on_stream_cb dp_obj: {dp_obj}");
          var timer = Stopwatch.StartNew();
          DataPacket dp = (DataPacket)dp_obj;
-         _fill_missing_data(dp);
          if (_schema == null) {
             _schema = dp.schema;
             _join_col_indices = BlueDataUtility.get_column_indices(_schema, _join_spec.join_col_names);

src/DataStreamSuite/DataStream/Primitives/Join/NonIncremental/NonIncJoinSpec.cs

@@ -7,12 +7,11 @@ using System.Threading.Tasks;
 using mbts;
 
 namespace BCG {
-   // this a collection of data, theres no joining logic in here
    public class NonIncJoinSpec {
       public ViewStream stream;
       // join col names are the names on which the streams are joined (for equality),
       // data col names are the names in the original stream
-      // projected col names are their new names, ie if its x:l_x, then x is in the 
+      // projected col naes are their new names, ie if its x:l_x, then x is in the 
       // data_col_names and l_x in projected cols
       public string[] join_col_names, data_col_names, projected_col_names;
 

src/DataStreamSuite/DataStream/Primitives/Join/NonIncremental/NonIncJoinStream.cs

@@ -50,7 +50,7 @@ namespace BCG {
          int data_col_no = 1;
          for (int jp = 0; jp < _join_specs.Length; jp++) {
             NonIncJoinBookkeeper s = new NonIncJoinBookkeeper(_join_specs[jp], jp, data_col_no, _row_hasher);
-            //Log.Gen.info($"NonIncJoinStream.myOnFirstSubscriber jp: {jp} spec: {_join_specs[jp]}");
+            Log.Gen.info($"NonIncJoinStream.myOnFirstSubscriber jp: {jp} spec: {_join_specs[jp]}");
             data_col_no += _join_specs[jp].data_col_names.Length;
             s.on_new_data += _stream_callback;
             _book_keeping_data.Add(s);
@@ -71,7 +71,7 @@ namespace BCG {
       }
 
       private void _stream_callback() {
-         //Log.Gen.info("NonIncJoinStream._stream_callback received callback");
+         Log.Gen.info("NonIncJoinStream._stream_callback received callback");
          _is_dirty = true;
          doWork();
       }
@@ -99,7 +99,7 @@ namespace BCG {
 
       private int _n_total_fires = 0, _n_expensive_fires = 0;
       private void _form_and_fire() {
-         //Log.Gen.info($"NonIncJoinStream._form_and_fire _is_ready(): {_is_ready()}");
+         Log.Gen.info($"NonIncJoinStream._form_and_fire _is_ready(): {_is_ready()}");
          if (_is_ready()) {
             _construct_schema();
             var timer = Stopwatch.StartNew();
@@ -126,11 +126,11 @@ namespace BCG {
             _n_total_fires++;
             //if (timer.ElapsedMilliseconds >= 250) {
             _n_expensive_fires++;
-            //string log_msg = $"Join and map time for {_book_keeping_data.Count} "
-            //   + $"tables {timer.Elapsed.TotalMilliseconds} msecs, ratio {_n_expensive_fires}/{_n_total_fires}";
-            //Log.Gen.info(log_msg);
+            string log_msg = $"Join and map time for {_book_keeping_data.Count} "
+               + $"tables {timer.Elapsed.TotalMilliseconds} msecs, ratio {_n_expensive_fires}/{_n_total_fires}";
+            Log.Gen.info(log_msg);
             //}
-            var dp_out = BlueDataUtility.build_dp_inc(dp_output_rows, myLastValue as DataPacket, true);
+            var dp_out = BlueDataUtility.build_dp_inc(dp_output_rows, myLastValue as DataPacket);
             myFireEvent(dp_out);
             //myFireEvent(new DataPacket(dp_output_rows, dp_output_rows, myLastValue == null ? new BlueTable(_output_schema) : (myLastValue as DataPacket).newRows));
          }
@@ -152,7 +152,7 @@ namespace BCG {
       }
 
       public void doWork() {
-         //Log.Gen.info($"NonIncJoinStream.doWork _last_fire_time: {_last_fire_time} _is_dirty: {_is_dirty}");
+         Log.Gen.info($"NonIncJoinStream.doWork _last_fire_time: {_last_fire_time} _is_dirty: {_is_dirty}");
          if (DateTime.Now - _last_fire_time >= _throttle_period && _is_dirty) {
             _is_dirty = false;
             _last_fire_time = DateTime.Now;

src/DataStreamSuite/DataStream/Primitives/Map/GlobalMapStream.cs

@@ -69,6 +69,4 @@ namespace bts {
          myFireEvent(dp_out);
       }
    }
-
-
 }

src/DataStreamSuite/DataStream/Primitives/Map/MapStream.cs

@@ -17,8 +17,9 @@ namespace BCG {
    /// desired row ie newRow = f(row), where f is the mapping fucntion. Note that the id 
    /// is preserved across the rows, ie row["id"] = f(row)["id"]
    /// </summary>
-   [DataStreamUserRespresentation(false)]
-   public class MapStream : MethodDrivenStream {
+   [DataStreamUserRespresentation (false)]
+   public class MapStream : MethodDrivenStream
+   {
       protected IStreamMapper? myMapper;
       protected IChangeableStreamMapper? myChangeableMapper;
       private bool myUseNewMap = Configuration.get<DataStreamConfig>().UseNewMap;

src/DataStreamSuite/DataStream/Primitives/Map/RollingComputationStream

@@ -1,14 +0,0 @@
-namespace bts.SilverPine
-{
-   using BCG;
-
-   [DataStreamUserRespresentation("RollingComputationStream")]
-   public class RollingComputationStream : ViewStream
-   {
-      private ViewStream _parent_str;
-      public RollingComputationStream(ViewStream parent_str, string operation_txt, string roll_column, uint window_sz)
-      {
-
-      }
-   }
-}

src/DataStreamSuite/DataStream/Primitives/Map/RollingComputationStream.cs

@@ -1,10 +0,0 @@
-namespace bts.SilverPine {
-   using BCG;
-
-
-   [DataStreamUserRespresentation("RollingComputationStream")]
-   public class RollingComputationStream : ViewStream {
-      public RollingComputationStream(ViewStream parent_str, string operation_txt, string roll_column, uint window_sz) {
-      }
-   }
-}

src/DataStreamSuite/DataStream/Primitives/Misc/TimeSeriesStream.cs

@@ -1,8 +1,9 @@
+using Google.Protobuf.WellKnownTypes;
+
 using System;
+using BCG.Utilities.General;
 
-using BCG;
-
-namespace bts.BlueOrb {
+namespace BCG {
    // Keeps adding changing rows to the stream, hence preserving the history
    // and creating a time series, for example this can be used to make bbo updates
    // into a time series of prices/qty 

src/DataStreamSuite/DataStream/Primitives/Project/New/NewProjectStream.cs

@@ -108,7 +108,6 @@ namespace bts {
 
    }
 
-   [DataStreamUserRespresentation("Project")]
    public class NewProjectStream : ViewStream, IStreamMapper {
 
       private ViewStream _stream;

src/DataStreamSuite/DataStream/Primitives/SQL/SQLite/SQLiteEnumerator.cs

@@ -1,54 +0,0 @@
-namespace Bts.DataStream;
-
-using BCG;
-
-using System;
-using System.Collections.Generic;
-using System.Data;
-using System.Data.SQLite;
-using System.Linq;
-using System.Threading;
-
-public class SQLiteEnumerable : IAsyncEnumerable<IBlueRowCollection> {
-   readonly string location;
-   readonly string statement;
-   readonly int pageSize;
-
-   public SQLiteEnumerable(string location, string statement, int pageSize = 1024) {
-      this.location = location;
-      this.statement = statement;
-      this.pageSize = pageSize;
-   }
-
-   public async IAsyncEnumerator<IBlueRowCollection> GetAsyncEnumerator(CancellationToken cancellationToken = default) {
-      var dataTable = new DataTable();
-      await using var conn = new SQLiteConnection($"Data Source={location};Version=3");
-      await conn.OpenAsync(cancellationToken);
-      await using var cmd = new SQLiteCommand(statement, conn);
-      await using var reader = cmd.ExecuteReader();
-      var schema = await reader.GetColumnSchemaAsync(cancellationToken);
-      var columns = schema.OrderBy(c => c.ColumnOrdinal ?? int.MaxValue)
-         .Select((c, i) => new ColumnInfo(c.ColumnName, c.ColumnOrdinal ?? i, c.DataType))
-         .Append(new ColumnInfo("id", schema.Count, typeof(int)))
-         .ToArray();
-      var blueSchema = new BlueTableSchema("anon", columns);
-      BlueTable? table = null;
-      int rowId = 1;
-      while (await reader.ReadAsync(cancellationToken)) {
-         table ??= new BlueTable(blueSchema);
-         var rowVals = new object[blueSchema.columnInfo.Length];
-         if (reader.GetValues(rowVals) != rowVals.Length - 1) {
-            throw new InvalidOperationException("Sqlite reader value count for single row not equal to column count");
-         }
-         rowVals[^1] = rowId++;
-         table.addRow(new BlueRow(blueSchema, rowVals));
-         if (table.Count == pageSize) {
-            yield return table;
-            table = null;
-         }
-      }
-      if (table is not null) {
-         yield return table;
-      }
-   }
-}

src/DataStreamSuite/DataStream/Primitives/SQL/SQLite/SQLiteHelper.cs

@@ -9,16 +9,161 @@ using BCG;
 using System.Linq;
 using System.Data.Entity;
 using System.Collections.Generic;
-using System.Data.SQLite;
 
+namespace bts.SilverPine {
 
-namespace bts.BlueOrb{
+   public class DataRowWrapperRow : IBlueRow {
+      private readonly DataRow _row;
+      private readonly IBlueTableSchema _schema;
+      private readonly int _id;
+      public DataRowWrapperRow(IBlueTableSchema schema, DataRow row, int id) {
+         _row = row;
+         _id = id;
+         _schema = schema;
+      }
+      public virtual IBlueTableSchema schema { get { return _schema; } }
+
+      public virtual object this[string col_name] {
+         get {
+            ColumnInfo ci = _schema[col_name];
+            return this[ci.colNo];
+         }
+      }
+      public virtual object this[int index] {
+         get {
+            if (_schema[index].colName == "id")
+               return _id;
+            return _row[index];
+         }
+      }
+
+      public virtual int Count { get { return _row.ItemArray.Length; } }
+
+      public virtual bool IsSynchronized { get { return false; } }
+
+      public virtual object SyncRoot { get { return this; } }
+
+      public virtual void CopyTo(Array array, int index) { _row.ItemArray.CopyTo(array, index); }
+
+      public virtual bool IsFixedSize { get { return true; } }
+
+      virtual public bool IsReadOnly { get { return true; } }
+
+      /// <summary>
+      /// The key can either be the string corrsponding to the column name or
+      /// the order of the column
+      /// </summary>
+      public virtual object this[object key] {
+         get {
+            if (key is string)
+               return this[(string)key];
+            else if (key is int)
+               return this[(int)key];
+            throw new BlueDataException("Wrong type while indexing the row");
+         }
+         set { throw new NotSupportedException("The IBlueRow is readonly"); }
+      }
+
+      public virtual ICollection Keys { get { return _schema.columnNames; } }
+
+      public virtual ICollection Values { get { return _row.ItemArray; } }
+
+      public virtual void Add(object key, object value) { throw new NotSupportedException("The IBlueRow is readonly"); }
+
+      public virtual void Clear() { throw new NotSupportedException("The IBlueRow is readonly"); }
+
+      public virtual bool Contains(object key) { return _schema[(string)key] != null; }
+
+      public IDictionaryEnumerator GetEnumerator() { return new BlueRowDictionaryEnumerator(this); }
+
+      IEnumerator IEnumerable.GetEnumerator() { return new BlueRowEnumerator(this); }
+
+      public virtual void Remove(object key) { throw new NotSupportedException("The IBlueRow is readonly"); }
+
+   }
+
+   public class DataTableWrapperTable : IBlueRowCollection {
+
+      public class DataTableWrapperTableEnumerator : IEnumerator {
+         private IEnumerator _enumerator;
+         private IBlueTableSchema _schema;
+         private int _id = 0;
+         public DataTableWrapperTableEnumerator(DataTable table) {
+            _enumerator = table.Rows.GetEnumerator();
+            _schema = BlueDataUtility.getSchema(table);
+
+         }
+         public object Current {
+            get {
+               DataRow r = _enumerator.Current as DataRow;
+               return new DataRowWrapperRow(_schema, r, _id);
+            }
+         }
+         public bool MoveNext() {
+            _id++;
+            return _enumerator.MoveNext();
+         }
+         public void Reset() {
+            _id = 0;
+            _enumerator.Reset();
+         }
+      }
+
+      private readonly DataTable _table;
+      private IBlueTableSchema _schema;
+      private IEnumerator _enumerator;
+
+      public DataTableWrapperTable(DataTable table) {
+         _table = table;
+         _schema = BlueDataUtility.getSchema(_table);
+         _enumerator = new DataTableWrapperTableEnumerator(table);
+      }
+      public virtual IBlueRow this[int id] {
+         get {
+            // its assumed the rows index == id
+            DataRow dr = _table.Rows[id];
+            return new DataRowWrapperRow(_schema, dr, id);
+         }
+         set {
+
+         }
+      }
+
+      public virtual IBlueTableSchema schema { get { return _schema; } }
+
+      public virtual bool containsID(int id) { return id < _table.Rows.Count; }
+
+      // private List<IBlueRow> _rows() {
+      //    List<IBlueRow> rv = new List<IBlueRow>();
+      //    int id = 0;
+      //    foreach (DataRow r in _table.Rows) {
+      //       rv.Add(new DataRowWrapperRow(r, id++));
+      //    }
+      //    return rv;
+      // }
+
+      public virtual IEnumerator GetEnumerator() {
+         // var rows = _rows();
+         // return rows.GetEnumerator();
+         return _enumerator;
+      }
+
+      public virtual bool IsSynchronized { get { return false; } }
+
+      public virtual object SyncRoot { get { return this; } }
+
+      public virtual void CopyTo(Array array, int index) {
+         Log.assert(false);
+         //_rows().CopyTo(array as IBlueRow[], index); 
+      }
+
+      public virtual int Count {
+         get { return _table.Rows.Count; }
+      }
+   }
 
    public static class SQLiteHelper {
-      public static string location = "C:\\Users\\m_tah\\development\\data\\";
-      public static string db_name = "stream_data.db";
-
-      public static DataTable execute_select_query(string connection_string, string query) {
+      public static DataTable ExecuteSelectQuery(string connection_string, string query) {
          // Create a new DataTable to store the results
          DataTable dataTable = new DataTable();
 
@@ -38,85 +183,48 @@ namespace bts.BlueOrb{
                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;
+   [DataStreamUserRespresentation("SQLite")]
+   public class SQLiteStream : ViewStream {
+      private readonly string _connection_string, _query;
+      private Stopwatch _stopwatch = new Stopwatch();
+      public SQLiteStream(string connection_string, string query) {
+         _connection_string = connection_string;
+         _query = query;
       }
 
-      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;
+      private void _read_from_sqlite_nd_fire() {
+         _stopwatch.Start();
+         DataTable dt = SQLiteHelper.ExecuteSelectQuery(_connection_string, _query);
+         _stopwatch.Stop();
+         Log.Gen.info($"SQLiteStream._read_from_sqlite_and_fire time to read db: {_stopwatch.ElapsedMilliseconds} msecs");
+         _stopwatch.Start();
+         IBlueRowCollection rows = BCG.BlueDataUtility.toIBlueRowCollection(dt);
+         //IBlueRowCollection rows = new DataTableWrapperTable(dt);
+         _stopwatch.Stop();
+         Log.Gen.info($"SQLiteStream._read_from_sqlite_and_fire time to load into IBlueRowCollection: {_stopwatch.ElapsedMilliseconds} msecs");
+         DataPacket dp = BlueDataUtility.build_dp_inc(rows, myLastValue as DataPacket);
+         myFireEvent(dp);
       }
 
-      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;
-               }
-            }
-         }
+      protected override void myOnFirstSubscriber() {
+         _read_from_sqlite_nd_fire();
       }
+
+      protected override void myOnLastSubscriber() {
+         // this value will be cleared by the base class
+         // but in this particular stream this behaviour
+         // is not usefull since any new subscribers 
+         // would force the query to be recreated
+         //myLastDP = myLastValue;
+      }
+
    }
 }
 

src/DataStreamSuite/DataStream/Primitives/SQL/SQLite/SqliteStream.cs

@@ -1,72 +0,0 @@
-namespace bts.BlueOrb {
-   using System;
-   using System.Data;
-   using System.Data.SQLite;
-   using System.Diagnostics;
-   using System.Collections;
-   using BCG;
-
-   [DataStreamUserRespresentation("SQLiteStream")]
-   public class SQLiteStream : ViewStream {
-      private readonly string _connection_string, _query;
-      private Stopwatch _stopwatch = new Stopwatch();
-
-      private SQLiteStream(string connection_string, string query, bool noop) {
-         _connection_string = connection_string;
-         _query = query;
-      }
-
-      public SQLiteStream(string db_name, string query)
-      :
-      this($"Data Source={SQLiteHelper.location}{db_name};Version=3", query, true) { }
-
-      public SQLiteStream(string query)
-      :
-      this(SQLiteHelper.db_name, query) {
-      }
-
-
-      private void _read_from_sqlite_and_fire() {
-         _stopwatch.Start();
-         DataTable dt = SQLiteHelper.execute_select_query(_connection_string, _query);
-         _stopwatch.Stop();
-         Log.Gen.info($"SQLiteStream.ExecuteSelectQuery time to read db: {_stopwatch.ElapsedMilliseconds} msecs");
-         _stopwatch.Restart();
-         #region perf measures
-         // SQLiteHelper.get_table(_connection_string, _query);
-         // _stopwatch.Stop();
-         // Log.Gen.info($"SQLiteStream.get_table time to read db: {_stopwatch.ElapsedMilliseconds} msecs");
-         // _stopwatch.Restart();
-         // SQLiteHelper.ExecuteBulkRead(_connection_string, _query);
-         // _stopwatch.Stop();
-         // Log.Gen.info($"SQLiteStream.ExecuteBulkRead time to read db: {_stopwatch.ElapsedMilliseconds} msecs");
-         // _stopwatch.Restart();
-         // SQLiteHelper.get_table_2(_connection_string, _query);
-         // _stopwatch.Stop();
-         // Log.Gen.info($"SQLiteStream.get_table_2 time to read db: {_stopwatch.ElapsedMilliseconds} msecs");
-         // _stopwatch.Restart();
-         #endregion
-         IBlueRowCollection rows = BCG.BlueDataUtility.toIBlueRowCollection(dt);
-         //IBlueRowCollection rows = new DataTableWrapperTable(dt);
-         _stopwatch.Stop();
-         Log.Gen.info($"SQLiteStream._read_from_sqlite_and_fire time to load into IBlueRowCollection: {_stopwatch.ElapsedMilliseconds} msecs");
-         DataPacket dp = BlueDataUtility.build_dp_inc(rows, myLastValue as DataPacket);
-         myFireEvent(dp);
-      }
-
-      protected override void myOnFirstSubscriber() {
-         _read_from_sqlite_and_fire();
-      }
-
-      protected override void myOnLastSubscriber() {
-         // this value will be cleared by the base class
-         // but in this particular stream this behaviour
-         // is not usefull since any new subscribers 
-         // would force the query to be recreated
-         //myLastDP = myLastValue;
-      }
-
-   }
-
-}
-

src/DataStreamSuite/DataStream/Primitives/Time/DateStandardizationStream.cs

@@ -80,7 +80,7 @@ namespace BCG {
 
       public IBlueRow map(IBlueRow row) {
          MutableBlueRow rv = new MutableBlueRow(getOutputSchema(row.schema), row);
-         rv.setValue(myConversionColName, mapDateTime(row.get_datetime(myConversionColName), myConversion));
+         rv.setValue(myConversionColName, mapDateTime(row[myConversionColName], myConversion));
          return rv;
          //return BlueDataUtility.getNewReplacedRow(row, mapDateTime(row[myConversionColName], myConversion), myConversionColName);
       }

src/DataStreamSuite/DataStream/Primitives/Time/DateTimeExpanstionStream.cs

@@ -4,17 +4,15 @@ namespace bts.SilverPine {
    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");
-            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}_min");
-            rv = rv.add_column(System.TypeCode.Int32, $"{inp_col}_seconds_of_day");
+            rv = rv.add_column(System.TypeCode.String, $"{inp_col}_month");
+            rv = rv.add_column(System.TypeCode.String, $"{inp_col}_hour");
+            rv = rv.add_column(System.TypeCode.String, $"{inp_col}_min");
             return rv;
          };
          ViewStream rs = new MapStream(parent_stream,
@@ -24,12 +22,10 @@ namespace bts.SilverPine {
             IBlueTableSchema s = get_schema(r.schema);
             MutableBlueRow rv = new MutableBlueRow(s, r);
             rv.setValue($"{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}_day", dt.DayOfWeek.ToString());
+            rv.setValue($"{inp_col}_month", dt.Date.Month.ToString());
             rv.setValue($"{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}_min", dt.Minute);
             return rv;
          });
          mySetRealSource(rs);

src/DataStreamSuite/DataStream/Primitives/Time/MillisecondStream.cs

@@ -1,6 +1,5 @@
 using System;
 
-using BCG;
 using BCG.Utilities.General;
 
 using bts;
@@ -88,17 +87,3 @@ namespace BCG {
       }
    }
 }
-
-//namespace bts.BlueOrb {
-//   [DataStreamUserRespresentation("MillisecondStream")]
-//   public class MillisecondStream : ViewStream {
-//      public MillisecondStream(ViewStreamDatabase vsd, int interval_msecs, int size) {
-//         ViewStream rs = new BCG.MillisecondStream(vsd, interval_msecs, size);
-//         mySetRealSource(rs);
-//      }
-
-//      public MillisecondStream(int interval_msecs, int size)
-//         : this(interval_msecs, size) {
-//      }
-//   }
-//}

src/DataStreamSuite/DataStream/Primitives/Time/SecondStream.cs

@@ -37,42 +37,4 @@ namespace BCG
       }
          
    }
-
-   [DataStreamUserRespresentation("throttle")]
-   public class ThrottleStream : ViewStream{
-      private readonly ViewStream _main_stream;
-      private readonly TimeSpan _ts;
-      private readonly ViewStreamDatabase _vsd;
-      private DateTime _last_fire_time = DateTime.MinValue;
-
-      public ThrottleStream (ViewStream main_stream, int throttle_seconds)
-      :
-      this(main_stream, TimeSpan.FromSeconds(throttle_seconds), ViewStreamDatabase.instance)
-      {
-      }
-
-      public ThrottleStream (ViewStream main_stream, TimeSpan ts, ViewStreamDatabase vsd){
-         _main_stream = main_stream;
-         _ts = ts;
-         _vsd = vsd;
-      }
-
-       protected override void myOnFirstSubscriber() {
-         _main_stream.onChange += _handle_base_stream_update;
-      }
-
-      protected override void myOnLastSubscriber() {
-         _main_stream.onChange -= _handle_base_stream_update;
-      }
-
-      private void _handle_base_stream_update(object dp_obj){
-         if (DateTime.Now - _last_fire_time >= _ts){
-            DataPacket dp_in = dp_obj as DataPacket;
-            _last_fire_time = DateTime.Now;
-            DataPacket dp = BlueDataUtility.build_dp_inc(dp_in.newRows, myLastValue as DataPacket);
-            myFireEvent(dp);
-         }
-      }
- }
-
 }

src/DataStreamSuite/DataStream/Primitives/Time/ThrottleStream

@@ -1,40 +0,0 @@
-namespace bts.SilverPine{
-   using BGC;
-   using System;
-   [DataStreamUserRespresentation("throttle")]
-   public class ThrottleStream : ViewStream{
-      private readonly ViewStream _main_stream;
-      private readonly TimeSpan _ts;
-      private readonly ViewStreamDatabase _vsd;
-      private DateTime _last_fire_time = DateTime.MinValue;
-
-      public ThrottleStream (ViewStream main_stream, int throttle_seconds)
-      :
-      this(main_stream, TimeSpan.FromSeconds(throttle_seconds), ViewStreamDatabase.instance)
-      {
-      }
-
-      public ThrottleStream (ViewStream main_stream, TimeSpan ts, ViewStreamDatabase vsd){
-         _main_stream = main_stream;
-         _ts = ts;
-         _vsd;
-      }
-
-       protected override void myOnFirstSubscriber() {
-         _main_stream.onChange += _handle_base_stream_update;
-      }
-
-      protected override void myOnLastSubscriber() {
-         _main_stream.onChange -= _handle_base_stream_update;
-      }
-
-      private void _handle_base_stream_update(object dp_obj){
-         if (DateTime.Now - _last_fire_time >= _ts){
-            DataPacket dp_in = dp_obj;
-            _last_fire_time = DateTime.Now;
-            DataPacket dp = BlueDataUtility.build_dp_inc(dp_in.newRow, myLastValue as DataPacket);
-            myFireEvent(dp);
-         }
-      }
- }
-}

src/DataStreamSuite/DataStream/Primitives/Timeseries/ColumnDifferenceStream.cs

@@ -1,124 +1,111 @@
-//namespace bts.SilverPine {
-//   using BCG;
+namespace bts.SilverPine {
+   using BCG;
 
-//   using bts;
-//   //using bts.collections;
+   using bts;
+   using bts.collections;
 
-//   using System;
-//   using System.CodeDom;
-//   using System.Collections.Generic;
-//   using System.Linq;
+   using System;
+   using System.CodeDom;
+   using System.Collections.Generic;
+   using System.Linq;
 
-//   // Given 2 filters, and 2 columns, finds the different in the value of the 2 columns from the 2 rows
-//   // so:
-//   // f1(base_stream.rows)[col1] - f1(base_stream.rows)[col2]
-//   [DataStreamUserRespresentation("ColDiff")]
-//   public class ColumnDifferenceStream : ViewStream {
-//      private readonly ViewStream _base_stream;
-//      private readonly FilterStream.OnFilter _f1, _f2;
-//      private readonly string _c1, _c2;
+   // Given 2 filters, and 2 columns, finds the different in the value of the 2 columns from the 2 rows
+   // so:
+   // f1(base_stream.rows)[col1] - f1(base_stream.rows)[col2]
+   [DataStreamUserRespresentation("ColDiff")]
+   public class ColumnDifferenceStream : ViewStream {
+      private readonly ViewStream _base_stream;
+      private readonly FilterStream.OnFilter _f1, _f2;
+      private readonly string _c1, _c2;
 
-//      public ColumnDifferenceStream(ViewStream base_stream, FilterStream.OnFilter f1, FilterStream.OnFilter f2, string col1, string col2) {
-//         _base_stream = base_stream;
-//         _f1 = f1;
-//         _f2 = f2;
-//         _c1 = col1;
-//         _c2 = col2;
-//      }
+      public ColumnDifferenceStream(ViewStream base_stream, FilterStream.OnFilter f1, FilterStream.OnFilter f2, string col1, string col2) {
+         _base_stream = base_stream;
+         _f1 = f1;
+         _f2 = f2;
+         _c1 = col1;
+         _c2 = col2;
+      }
 
-//      public ColumnDifferenceStream(ViewStream base_stream, string f1, string f2, string col1, string col2) {
-//         FilterStream.OnFilter f1_del = r => {
-//            BooleanExpressionFilter rv = new BooleanExpressionFilter(f1);
-//            return rv.filter(r);
-//         };
-//         FilterStream.OnFilter f2_del = r => {
-//            BooleanExpressionFilter rv = new BooleanExpressionFilter(f2);
-//            return rv.filter(r);
-//         };
-//         ViewStream rs = new ColumnDifferenceStream(base_stream, f1_del, f2_del, col1, col2);
-//         mySetRealSource(rs);
-//      }
+      public ColumnDifferenceStream(ViewStream base_stream, string f1, string f2, string col1, string col2) {
+         FilterStream.OnFilter f1_del = r => {
+            BooleanExpressionFilter rv = new BooleanExpressionFilter(f1);
+            return rv.filter(r);
+         };
+         FilterStream.OnFilter f2_del = r => {
+            BooleanExpressionFilter rv = new BooleanExpressionFilter(f2);
+            return rv.filter(r);
+         };
+         ViewStream rs = new ColumnDifferenceStream(base_stream, f1_del, f2_del, col1, col2);
+         mySetRealSource(rs);
+      }
 
-//      // for each row, does a row[new_col_name] = row[col1] - rows[row_ffset][col2]
-//      // we should generlize this for any math operation
-//      public ColumnDifferenceStream(ViewStream parent_stream, string sort_col_name, int row_offset, string col1, string col2, string diff_col_name, double optional_perc_diff_filter = 0.0) {
-//         // use GlobalMapStream
-//         string diff_col_perc_name = $"{diff_col_name}_percentage";
-//         System.Func<System.Collections.Generic.List<BCG.IBlueRow>, uint, BCG.IBlueRow> g_map_func = (rows, idx) => {
-//            int minuend_idx = Convert.ToInt32(idx);
-//            var inp_schema = rows[0].schema;
-//            var out_schema = inp_schema.add_column(TypeCode.Double, diff_col_name);
-//            out_schema = out_schema.add_column(TypeCode.Double, diff_col_perc_name);
-//            // minuend - subtrahend
-//            IBlueRow minuend_row = rows.ElementAt(minuend_idx);
-//            MutableBlueRow rv = new MutableBlueRow(out_schema, minuend_row);
-//            int subtrahend_index = minuend_idx + row_offset;
-//            double diff_val = Double.NaN, diff_val_perc = Double.NaN;
-//            if (subtrahend_index >= 0) {
-//               try {
-//                  IBlueRow subtrahend_row = rows.ElementAt(subtrahend_index);
-//                  diff_val = minuend_row.get<double>(col1) - subtrahend_row.get<double>(col2);
-//                  diff_val_perc = 100.0 * diff_val / subtrahend_row.get<double>(col1);
-//               } catch (Exception ex) {
-//                  Log.assert(false, ex.Message);
-//               }
-//            }
-//            rv.setValue(diff_col_name, diff_val);
-//            rv.setValue(diff_col_perc_name, diff_val_perc);
-//            return rv;
-//         };
-//         ViewStream rs = new GlobalMapStream(parent_stream, sort_col_name, g_map_func);
-//         if (optional_perc_diff_filter != 0) {
-//            rs = new FilterStream(rs, r => {
-//               double diff_val_perc = r.get<double>(diff_col_perc_name);
-//               double abs_diff_val_perc = Math.Abs(diff_val_perc);
-//               return abs_diff_val_perc >= optional_perc_diff_filter;
-//            });
-//         }
-//         mySetRealSource(rs);
-//      }
+      // for each row, does a row[new_ol_name] = row[col1] - rows[row_ffset][col2]
+      // we should generlize this for any math operation
+      public ColumnDifferenceStream(ViewStream parent_stream, string sort_col_name, int row_offset, string col1, string col2, string diff_col_name, double optional_perc_diff_filter = 0.0) {
+         // use GlobalMapStream
+         string diff_col_perc_name = $"{diff_col_name}_percentage";
+         System.Func<System.Collections.Generic.List<BCG.IBlueRow>, uint, BCG.IBlueRow> g_map_func = (rows, idx) => {
+            int minuend_idx = Convert.ToInt32(idx);
+            var inp_schema = rows[0].schema;
+            var out_schema = inp_schema.add_column(TypeCode.Double, diff_col_name);
+            out_schema = out_schema.add_column(TypeCode.Double, diff_col_perc_name);
+            // minuend - subtrahend
+            IBlueRow minuend_row = rows.ElementAt(minuend_idx);
+            MutableBlueRow rv = new MutableBlueRow(out_schema, minuend_row);
+            int subtrahend_index = minuend_idx + row_offset;
+            double diff_val = Double.NaN, diff_val_perc = Double.NaN;
+            if (subtrahend_index >= 0) {
+               try {
+                  IBlueRow subtrahend_row = rows.ElementAt(subtrahend_index);
+                  diff_val = minuend_row.get<double>(col1) - subtrahend_row.get<double>(col2);
+                  diff_val_perc = 100.0 * diff_val / subtrahend_row.get<double>(col1);
+               } catch (Exception ex) {
+                  Log.assert(false, ex.Message);
+               }
+            }
+            rv.setValue(diff_col_name, diff_val);
+            rv.setValue(diff_col_perc_name, diff_val_perc);
+            return rv;
+         };
+         ViewStream rs = new GlobalMapStream(parent_stream, sort_col_name, g_map_func);
+         if (optional_perc_diff_filter != 0) {
+            rs = new FilterStream(rs, r => {
+               double diff_val_perc = r.get<double>(diff_col_perc_name);
+               double abs_diff_val_perc = Math.Abs(diff_val_perc);
+               return abs_diff_val_perc >= optional_perc_diff_filter;
+            });
+         }
+         mySetRealSource(rs);
+      }
 
-//      protected override void myOnFirstSubscriber() {
-//         _base_stream.onChange += _handle_base_stream_update;
-//      }
+      protected override void myOnFirstSubscriber() {
+         _base_stream.onChange += _handle_base_stream_update;
+      }
 
-//      protected override void myOnLastSubscriber() {
-//         _base_stream.onChange -= _handle_base_stream_update;
-//      }
+      protected override void myOnLastSubscriber() {
+         _base_stream.onChange -= _handle_base_stream_update;
+      }
 
-//      private void _handle_base_stream_update(object dp_obj) {
-//         // could have been done with filter and cartesian prod, and then math
-//         DataPacket dp = dp_obj as DataPacket;
-//         List<IBlueRow> rows = dp.newRows.to_list();
-//         var f1_rows = rows.Where(r => _f1(r));
-//         //Log.assert(f1_rows.Count() == 1);
-//         var f2_rows = rows.Where(r => _f2(r));
-//         //Log.assert(f2_rows.Count() == 1);
-//         if (f1_rows != null && f1_rows.Count() > 0 && f2_rows != null && f2_rows.Count() > 0) {
-//            IBlueRow f1_r = f1_rows.ElementAt(0);
-//            IBlueRow f2_r = f2_rows.ElementAt(0);
-//            double diff = f1_r.get<double>(_c1) - f2_r.get<double>(_c2);
-//            IBlueTableSchema out_schema = f1_r.schema.add_columns(Tuple.Create(typeof(double), "diff"));
-//            BlueTable out_table = new BlueTable(out_schema);
-//            MutableBlueRow out_row = new MutableBlueRow(out_schema, f1_r);
-//            out_row.setValue("diff", diff);
-//            out_table.addRow(out_row);
-//            DataPacket dp_out = BlueDataUtility.build_dp(out_table, myLastValue as DataPacket);
-//            myFireEvent(dp_out);
-//         } else {
-//            IBlueRow f1_r = rows.ElementAt(0);
-//            IBlueRow f2_r = rows.ElementAt(0);
-//            double diff = Double.NaN;
-//            IBlueTableSchema out_schema = f1_r.schema.add_columns(Tuple.Create(typeof(double), "diff"));
-//            BlueTable out_table = new BlueTable(out_schema);
-//            MutableBlueRow out_row = new MutableBlueRow(out_schema, f1_r);
-//            out_row.setValue("diff", diff);
-//            out_table.addRow(out_row);
-//            DataPacket dp_out = BlueDataUtility.build_dp(out_table, myLastValue as DataPacket);
-//            myFireEvent(dp_out);
-//         }
+      private void _handle_base_stream_update(object dp_obj) {
+         // could have been done with filter and cartesian prod, and then math
+         DataPacket dp = dp_obj as DataPacket;
+         List<IBlueRow> rows = dp.newRows.to_list();
+         var f1_rows = rows.Where(r => _f1(r));
+         Log.assert(f1_rows.Count() == 1);
+         var f2_rows = rows.Where(r => _f2(r));
+         Log.assert(f2_rows.Count() == 1);
+         IBlueRow f1_r = f1_rows.ElementAt(0);
+         IBlueRow f2_r = f2_rows.ElementAt(0);
+         double diff = f1_r.get<double>(_c1) - f2_r.get<double>(_c2);
+         IBlueTableSchema out_schema = f1_r.schema.add_columns(Tuple.Create(typeof(double), "diff"));
+         BlueTable out_table = new BlueTable(out_schema);
+         MutableBlueRow out_row = new MutableBlueRow(out_schema, f1_r);
+         out_row.setValue("diff", diff);
+         out_table.addRow(out_row);
+         DataPacket dp_out = BlueDataUtility.build_dp(out_table, myLastValue as DataPacket);
+         myFireEvent(dp_out);
 
-//      }
-//   }
+      }
+   }
 
-//}
+}

src/DataStreamSuite/DataStream/Primitives/Top/TopStream.cs

@@ -40,4 +40,4 @@ namespace BCG {
             myFireSwitch = myLastFiredPacket.addedRows.Count + myLastFiredPacket.deletedRows.Count == 0 ? false : true;
         }
     }
-}
+}