fix use dep injection in bts.datastreamwebapp.server

fix Add spark service modules designed for DependencyInjection
Fix mismatched types in PubsubHeartbeatStream schema
2024-07-11 11:06:29 -04:00 · 2024-07-11 11:05:23 -04:00 · 2024-07-11 10:59:41 -04:00 · 2024-07-11 10:43:24 -04:00 · 2024-07-11 10:38:30 -04:00 · 2024-07-11 10:37:29 -04:00
2034 changed files with 11363 additions and 20122 deletions
@@ -66,6 +66,7 @@ RUN \

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

 # Node
 ARG node_major=18
@@ -87,11 +88,6 @@ RUN dpkg -i /emumba/emumba-deribit-connector-3.3.1-Linux.LICENSE_DISABLED.deb \
 # Pcap
 RUN apt-get update && apt-get install -y libpcap0.8-dev

-RUN apt-get update && apt-get install -y \
-    docker.io \
-    docker-compose \
-    docker-compose-v2
-
 # Set up default executables (update-alternatives)
 RUN \
   update-alternatives --install /usr/bin/clang clang /usr/bin/clang-$clang_major 100; \
@@ -125,5 +121,3 @@ RUN \
   -G sudo \
   --password "$(openssl passwd -1 "$docker_pass")" \
   "$docker_user"
-
-RUN usermod -aG docker "$docker_user"
@@ -18,12 +18,27 @@
  "runArgs": [
    "--shm-size",
    "2gb",
-    "--network",
-    "host"
+    "-p",
+    "5000:5000",
+    "-p",
+    "5001:5001",
+    "-p",
+    "5173:5173",
+    "-p",
+    "5174:5174",
+    "-p",
+    "8000:8000",
+    "-p",
+    "8001:8001",
+    "-p",
+    "8002:8002",
+    "-p",
+    "8003:8003",
+    "-p",
+    "12345:12345",
  ],
  "mounts": [
-    "source=${localEnv:HOME}/.bts/devcontainer-mounts/${devcontainerId},target=/home/bts,type=bind",
-    "source=/var/run/docker.sock,target=/var/run/docker.sock,type=bind"
+    "source=${localEnv:HOME}/.bts/devcontainer-mounts/${devcontainerId},target=/home/bts,type=bind"
  ],
  "customizations": {
    "vscode": {
@@ -1,4 +1,3 @@
 *.cmd text=auto eol=crlf
 *.cs text=auto eol=crlf
 *.sh text=auto eol=lf
-*.py text=auto eol=lf
@@ -6,52 +6,18 @@
      "type": "coreclr",
      "request": "attach"
    },
-    {
-      "name": "Api Server",
-      "type": "coreclr",
-      "request": "launch",
-      "program": "",
-      "windows": {
-        "preLaunchTask": "Build Api Server (Debug)",
-        "program": "spark_api_server.exe",
-        "args": [
-          "run",
-          "--sparkd",
-          "http://127.0.0.1:8000/config"
-        ],
-        "cwd": "build/Debug/bin/net7.0",
-      },
-      "stopAtEntry": false,
-      "console": "integratedTerminal"
-    },
-    {
-      "name": "Api Server (Skip Build)",
-      "type": "coreclr",
-      "request": "launch",
-      "program": "",
-      "windows": {
-        "program": "spark_api_server.exe",
-        "args": [
-          "run",
-          "--sparkd",
-          "http://127.0.0.1:8000/config"
-        ],
-        "cwd": "build/Debug/bin/net7.0",
-      },
-      "stopAtEntry": false,
-      "console": "integratedTerminal"
-    },
    {
      "name": "Bts.DataStreamWebApp.Server",
      "type": "coreclr",
      "request": "launch",
      "preLaunchTask": "Build DataStream WebApp (Debug)",
      "program": "${workspaceFolder}/build/Debug/bin/net7.0/Bts.DataStreamWebApp.Server.dll",
-      "cwd": "${workspaceFolder}/build/Debug/bin/net7.0",
+      "args": [
+        "--config",
+        "${workspaceFolder}/src/DataStreamSuite/Bts.DataStreamWebApp.Server/Configurations/DevServer.json",
+      ],
      "env": {
-        "ASPNETCORE_HTTP_PORT": "8080",
-        "ASPNETCORE_HTTPS_PORT": "8443",
-        "ASPNETCORE_ENVIRONMENT": "${input:dataStreamWebAppServerEnvironment}",
+        "ASPNETCORE_ENVIRONMENT": "Development",
        "ASPNETCORE_HOSTINGSTARTUPASSEMBLIES": "Microsoft.AspNetCore.SpaProxy",
      }
    },
@@ -60,11 +26,12 @@
      "type": "coreclr",
      "request": "launch",
      "program": "${workspaceFolder}/build/Debug/bin/net7.0/Bts.DataStreamWebApp.Server.dll",
-      "cwd": "${workspaceFolder}/build/Debug/bin/net7.0",
+      "args": [
+        "--config",
+        "${workspaceFolder}/src/DataStreamSuite/Bts.DataStreamWebApp.Server/Configurations/DevServer.json",
+      ],
      "env": {
-        "ASPNETCORE_HTTP_PORT": "8080",
-        "ASPNETCORE_HTTPS_PORT": "8443",
-        "ASPNETCORE_ENVIRONMENT": "${input:dataStreamWebAppServerEnvironment}",
+        "ASPNETCORE_ENVIRONMENT": "Development",
        "ASPNETCORE_HOSTINGSTARTUPASSEMBLIES": "Microsoft.AspNetCore.SpaProxy",
      }
    },
@@ -80,9 +47,10 @@
      "windows": {
        "program": "DataStreamPublisher.exe",
      },
-      "env": {
-        "DOTNET_ENVIRONMENT": "${input:dataStreamPublisherEnvironment}",
-      },
+      "args": [
+        "--config",
+        "${workspaceFolder}/src/DataStreamSuite/DataStreamPublisher/Configurations/${input:dataStreamPublisherConfig}.json"
+      ],
      "cwd": "${workspaceFolder}/build/Debug/bin/net7.0",
      "stopAtEntry": false,
      "console": "integratedTerminal"
@@ -98,9 +66,10 @@
      "windows": {
        "program": "DataStreamPublisher.exe",
      },
-      "env": {
-        "DOTNET_ENVIRONMENT": "${input:dataStreamPublisherEnvironment}",
-      },
+      "args": [
+        "--config",
+        "${workspaceFolder}/src/DataStreamSuite/DataStreamPublisher/Configurations/${input:dataStreamPublisherConfig}.json"
+      ],
      "cwd": "${workspaceFolder}/build/Debug/bin/net7.0",
      "stopAtEntry": false,
      "console": "integratedTerminal"
@@ -137,10 +106,11 @@
      "windows": {
        "program": "PubSubServer.exe",
      },
+      "args": [
+        "--config",
+        "${workspaceFolder}/src/DataStreamSuite/PubSubServer/Configurations/${input:pubSubServerConfig}.json"
+      ],
      "cwd": "build/Debug/bin/net7.0",
-      "env": {
-        "DOTNET_ENVIRONMENT": "${input:pubSubServerEnvironment}",
-      },
      "stopAtEntry": false,
      "console": "integratedTerminal"
    },
@@ -155,10 +125,11 @@
      "windows": {
        "program": "PubSubServer.exe",
      },
+      "args": [
+        "--config",
+        "${workspaceFolder}/src/DataStreamSuite/PubSubServer/Configurations/${input:pubSubServerConfig}.json"
+      ],
      "cwd": "build/Debug/bin/net7.0",
-      "env": {
-        "DOTNET_ENVIRONMENT": "${input:pubSubServerEnvironment}",
-      },
      "stopAtEntry": false,
      "console": "integratedTerminal"
    },
@@ -170,10 +141,6 @@
      "windows": {
        "preLaunchTask": "Build Spark (Debug)",
        "program": "Spark.exe",
-        "args": [
-          "--sparkd",
-          "http://127.0.0.1:8000/config"
-        ],
        "cwd": "build/Debug/bin/net7.0-windows",
      },
      "stopAtEntry": false,
@@ -198,99 +165,43 @@
    },
    {
      "name": "Sparkd",
-      "type": "cppdbg",
+      "type": "coreclr",
      "request": "launch",
      "preLaunchTask": "Build Sparkd (Debug | Clang)",
      "program": "",
      "linux": {
-        "program": "${workspaceFolder}/build/sparkd-debug-clang/src/app_sparkd/sparkd",
+        "program": "sparkd",
      },
      "args": [
        "run"
      ],
-      "cwd": "${workspaceFolder}/build/sparkd-debug-clang/src/app_sparkd",
+      "cwd": "build/sparkd-debug-clang/server",
      "stopAtEntry": false,
-      "externalConsole": false,
-      "MIMode": "gdb",
-      "setupCommands": [
-        {
-          "description": "Enable pretty-printing for gdb",
-          "text": "-enable-pretty-printing",
-          "ignoreFailures": true
-        },
-        {
-          "description": "Set Disassembly Flavor to Intel",
-          "text": "-gdb-set disassembly-flavor intel",
-          "ignoreFailures": true
-        }
-      ]
-    },
-    {
-      "name": "Sparkd (Skip Build)",
-      "type": "cppdbg",
-      "request": "launch",
-      "program": "",
-      "linux": {
-        "program": "${workspaceFolder}/build/sparkd-debug-clang/src/app_sparkd/sparkd",
-      },
-      "args": [
-        "test-py-md-provider"
-      ],
-      "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
-        }
-      ]
-    },
+      "console": "integratedTerminal"
+    }
  ],
  "inputs": [
    {
-      "id": "dataStreamPublisherEnvironment",
+      "id": "dataStreamPublisherConfig",
      "type": "pickString",
      "description": "Publisher Configuration",
      "options": [
-        "Development",
-        "MarketData",
-        "Production",
-        "ProductionAws",
-        "Staging",
+        "MarketDataPublisher",
+        "SimpleEchoClient",
+        "SimpleTestDataPublisher",
+        "TestDataPublisher",
      ],
      "default": "MarketDataPublisher",
    },
    {
-      "id": "pubSubServerEnvironment",
+      "id": "pubSubServerConfig",
      "type": "pickString",
      "description": "PubSub Configuration",
      "options": [
-        "Development",
-        "EchoServer",
-        "Production",
-        "ProductionAws",
-        "Staging",
+        "PubSubServer",
+        "SimpleEchoClient",
      ],
-      "default": "Development",
-    },
-    {
-      "id": "dataStreamWebAppServerEnvironment",
-      "type": "pickString",
-      "description": "DataStream WebApp Environment",
-      "options": [
-        "Development",
-        "Production",
-        "ProductionAws",
-        "Staging",
-      ]
+      "default": "PubSubServer",
    },
    {
      "id": "sparkConfigServer",
@@ -298,15 +209,5 @@
      "description": "Config Server URL",
      "default": "http://localhost:8000/config",
    },
-    {
-      "id": "isSparkApiEnabled",
-      "type": "pickString",
-      "description": "Enable Spark Api (connect to sparkd)",
-      "options": [
-        "True",
-        "False",
-      ],
-      "default": "True",
-    }
  ]
 }
@@ -212,26 +212,6 @@
        "color": "terminal.ansiCyan"
      },
    },
-    {
-      "label": "Build DataStream WebApp (Release)",
-      "group": "build",
-      "type": "process",
-      "command": "",
-      "linux": {
-        "command": "tools/build_data_stream_web_app.sh",
-      },
-      "windows": {
-        "command": "tools/build_data_stream_web_app.cmd",
-      },
-      "args": [
-        "--configuration",
-        "Release",
-      ],
-      "icon": {
-        "id": "terminal",
-        "color": "terminal.ansiCyan"
-      },
-    },
    {
      "label": "Build Spark",
      "group": "build",
@@ -607,89 +587,6 @@
        "color": "terminal.ansiGreen",
      },
    },
-    {
-      "label": "Run DataStream WebApp (Debug)",
-      "dependsOn": "Build DataStream WebApp (Debug)",
-      "command": "",
-      "linux": {
-        "command": "Bts.DataStreamWebApp.Server",
-      },
-      "windows": {
-        "command": "Bts.DataStreamWebApp.Server.exe",
-      },
-      "args": [
-        "--config",
-        "${workspaceFolder}/src/DataStreamSuite/Bts.DataStreamWebApp.Server/Configurations/DevServer.json",
-      ],
-      "options": {
-        "cwd": "${workspaceFolder}/build/Debug/bin/net7.0",
-        "env": {
-          "ASPNETCORE_HTTP_PORT": "8080",
-          "ASPNETCORE_HTTPS_PORT": "8443",
-          "ASPNETCORE_ENVIRONMENT": "Development",
-          "ASPNETCORE_HOSTINGSTARTUPASSEMBLIES": "Microsoft.AspNetCore.SpaProxy",
-        }
-      },
-      "icon": {
-        "id": "run",
-        "color": "terminal.ansiGreen",
-      },
-    },
-    {
-      "label": "Run DataStream WebApp (Release)",
-      "dependsOn": "Build DataStream WebApp (Release)",
-      "command": "",
-      "linux": {
-        "command": "Bts.DataStreamWebApp.Server",
-      },
-      "windows": {
-        "command": "Bts.DataStreamWebApp.Server.exe",
-      },
-      "args": [
-        "--config",
-        "${workspaceFolder}/src/DataStreamSuite/Bts.DataStreamWebApp.Server/Configurations/DevServer.json",
-      ],
-      "options": {
-        "cwd": "${workspaceFolder}/build/Release/bin/net7.0",
-        "env": {
-          "ASPNETCORE_HTTP_PORT": "8080",
-          "ASPNETCORE_HTTPS_PORT": "8443",
-          "ASPNETCORE_ENVIRONMENT": "Production",
-          "ASPNETCORE_HOSTINGSTARTUPASSEMBLIES": "Microsoft.AspNetCore.SpaProxy",
-        }
-      },
-      "icon": {
-        "id": "run",
-        "color": "terminal.ansiGreen",
-      },
-    },
-    {
-      "label": "Run DataStream WebApp (Release | Skip Build)",
-      "command": "",
-      "linux": {
-        "command": "Bts.DataStreamWebApp.Server",
-      },
-      "windows": {
-        "command": "Bts.DataStreamWebApp.Server.exe",
-      },
-      "args": [
-        "--config",
-        "${workspaceFolder}/src/DataStreamSuite/Bts.DataStreamWebApp.Server/Configurations/DevServer.json",
-      ],
-      "options": {
-        "cwd": "${workspaceFolder}/build/Release/bin/net7.0",
-        "env": {
-          "ASPNETCORE_HTTP_PORT": "8080",
-          "ASPNETCORE_HTTPS_PORT": "8443",
-          "ASPNETCORE_ENVIRONMENT": "Production",
-          "ASPNETCORE_HOSTINGSTARTUPASSEMBLIES": "Microsoft.AspNetCore.SpaProxy",
-        }
-      },
-      "icon": {
-        "id": "run",
-        "color": "terminal.ansiGreen",
-      },
-    },
    {
      "label": "Run PubSubServer",
      "dependsOn": "Build DataStream",
@@ -1,5 +1,5 @@
 cmake_minimum_required(VERSION 3.12)
-project(spark_root)
+project(spark)
 set(CMAKE_CXX_STANDARD 20)

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

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

 add_compile_definitions(SHARED_MEMORY_PREFIX="${SHARED_MEMORY_PREFIX}")
-if(DEFINED APP_DATA_DIR)
-  add_compile_definitions(APP_DATA_DIR="${APP_DATA_DIR}")
+add_compile_definitions(APP_DATA_DIR="${APP_DATA_DIR}")
+if(DEFINED APP_DATA_DIR_OVERRIDE)
+  add_compile_definitions(APP_DATA_DIR_OVERRIDE="${APP_DATA_DIR_OVERRIDE}")
 endif()
 add_compile_definitions(EXPORT_MD_CONSUMER="${EXPORT_MD_CONSUMER}")
 if(WIN32)
  # subdirs
-  add_subdirectory(src/lib_spark)
+  add_subdirectory(src/lib)
 else()
+  # make sparkd look for libspark.so in its directory
+  set(CMAKE_BUILD_WITH_INSTALL_RPATH TRUE)
+  set(CMAKE_INSTALL_RPATH ".")
+  set(CMAKE_INSTALL_PREFIX "${CMAKE_SOURCE_DIR}/install")
+  set(SPARK_INSTALL_PREFIX "${CMAKE_INSTALL_PREFIX}/$<CONFIG>")
+
  if(BUILD_SPARKD)
    # Note: All macros that begin w/ 'CCAPI' are ccapi's macros (defined and/or
    # read by their code). We override some below.
@@ -104,13 +111,10 @@ else()

  # subdirs
  if (BUILD_SPARKD)
-    add_subdirectory(src/lib_system)
-    add_subdirectory(src/lib_domain)
-    add_subdirectory(src/lib_python_md)
-    add_subdirectory(src/app_sparkd)
+    add_subdirectory(src/server/sparkd)
    add_subdirectory(src/data_files)
  endif()
-  add_subdirectory(src/lib_spark)
+  add_subdirectory(src/lib)
  if (BUILD_ADMIN_WEB_APP)
    add_subdirectory(src/Spark.Admin.WebApp)
  endif()
@@ -120,4 +124,32 @@ else()
  if(BUILD_SDK)
    add_subdirectory(src/sdk)
  endif()
+
+  if(BUILD_SPARKD)
+    add_custom_command(
+      OUTPUT ${CMAKE_BINARY_DIR}/server
+      COMMAND mkdir -p ${CMAKE_BINARY_DIR}/server
+      COMMAND ln ARGS -sf ${CMAKE_BINARY_DIR}/src/server/sparkd/sparkd ${CMAKE_BINARY_DIR}/server
+      COMMAND ln ARGS -sf ${CMAKE_BINARY_DIR}/data_files ${CMAKE_BINARY_DIR}/server
+      COMMAND ln ARGS -sf ${CMAKE_BINARY_DIR}/src/lib/libspark.so ${CMAKE_BINARY_DIR}/server
+      COMMAND
+        ln ARGS -sf
+        ${EXTERNALS_ROOT}/lib/Release/libOnixS.IceImpactMulticastPriceFeedHandlerCpp.so.3.16.0.0
+        ${CMAKE_BINARY_DIR}/server
+      COMMAND ln ARGS -sf ${EXTERNALS_ROOT}/lib/Release/libACE-5.7.5.so ${CMAKE_BINARY_DIR}/server
+      COMMAND mkdir ARGS -p ${CMAKE_BINARY_DIR}/server/plugins
+      COMMENT "Creating server runtime layout"
+      DEPENDS sparkd data_files_dir)
+
+    add_custom_target(server_layout ALL DEPENDS ${CMAKE_BINARY_DIR}/server)
+
+    install(
+      DIRECTORY "${CMAKE_BINARY_DIR}/server/plugins"
+      DESTINATION "${SPARK_INSTALL_PREFIX}/bin")
+    install(
+      FILES
+      "${SPARK_LIB}/libACE-5.7.5.so"
+      "${SPARK_LIB}/libOnixS.IceImpactMulticastPriceFeedHandlerCpp.so.3.16.0.0"
+      DESTINATION "${SPARK_INSTALL_PREFIX}/bin")
+  endif()
 endif()
@@ -20,6 +20,8 @@
        "SPARK_CMAKE_CXX_FLAGS": "/MP /WX /wd4250 /wd4251 /wd4244 /wd4267 /wd4355 /wd4275 /wd4345 /bigobj /EHsc /DCURL_STATICLIB /D_WINSOCK_DEPRECATED_NO_WARNINGS /D__TBB_NO_IMPLICIT_LINKAGE /DBOOST_ALL_NO_LIB /std:c++20 /D_SCL_SECURE_NO_WARNINGS /D_CRT_SECURE_NO_WARNINGS /D_WIN32_WINNT=0x0600"
      },
      "cacheVariables": {
+        "APP_DATA_DIR": "${dollar}{APPDATA}/bts",
+        "APP_DATA_DIR_OVERRIDE": "${dollar}{SPARK_DATA_DIR}",
        "CMAKE_CXX_FLAGS": "$env{SPARK_CMAKE_CXX_FLAGS}",
        "CMAKE_CXX_FLAGS_DEBUG": "$env{SPARK_CMAKE_CXX_FLAGS} /MTd",
        "CMAKE_CXX_FLAGS_RELEASE": "$env{SPARK_CMAKE_CXX_FLAGS} /MT",
@@ -33,7 +35,8 @@
        "EXPORT_MD_CONSUMER": {
          "type": "BOOL",
          "value": "ON"
-        }
+        },
+        "SHARED_MEMORY_PREFIX": "spark"
      }
    },

@@ -49,9 +52,15 @@
      "binaryDir": "${sourceDir}/build/${presetName}",
      "cacheVariables": {
        "platform": "",
+        "APP_DATA_DIR": "${dollar}{HOME}/sparkdata",
+        "APP_DATA_DIR_OVERRIDE": "${dollar}{SPARKD_DATA_DIR}",
+        "CMAKE_BUILD_WITH_INSTALL_RPATH": {
+          "type": "BOOL",
+          "value": "ON"
+        },
        "CMAKE_CXX_STANDARD": "20",
-        "CMAKE_INSTALL_PREFIX": "${sourceDir}/install/${presetName}",
-        "CMAKE_PREFIX_PATH": "${sourceDir}/cmake/;${sourceDir}/.venv/lib/python3.10/site-packages/pybind11/share/cmake/pybind11",
+        "CMAKE_INSTALL_RPATH": ".",
+        "CMAKE_INSTALL_PREFIX": "${sourceDir}/install/${presetName}/sparkd",
        "CMAKE_EXE_LINKER_FLAGS": "-Wno-undef",
        "EXTERNALS_ROOT": "${sourceDir}/externals/linux",
        "BUILD_SDK": {
@@ -61,7 +70,8 @@
        "BUILD_ADMIN_WEB_APP": {
          "type": "BOOL",
          "value": "ON"
-        }
+        },
+        "SHARED_MEMORY_PREFIX": "sparkd"
      }
    },

@@ -142,7 +152,11 @@
    {
      "name": "spark-api-server-windows",
      "inherits": "spark",
-      "displayName": "Spark Api Server (Windows)"
+      "displayName": "Spark Api Server (Windows)",
+      "cacheVariables": {
+        "APP_DATA_DIR_OVERRIDE": "${dollar}{SPARK_API_SERVER_DATA_DIR}",
+        "SHARED_MEMORY_PREFIX": "spark_api_server"
+      }
    },

    {
@@ -151,6 +165,7 @@
      "displayName": "Spark Api Server (Linux)",
      "generator": "Ninja Multi-Config",
      "cacheVariables": {
+        "APP_DATA_DIR_OVERRIDE": "${dollar}{SPARK_API_SERVER_DATA_DIR}",
        "BUILD_ADMIN_WEB_APP": {
          "type": "BOOL",
          "value": "OFF"
@@ -163,12 +178,9 @@
        "CMAKE_CXX_COMPILER": "clang++",
        "CMAKE_CXX_FLAGS_DEBUG": "-g -fPIC -Wall -pedantic -Wextra -Werror -Wno-missing-braces -Wno-ignored-qualifiers --std=c++20 -fdiagnostics-color -DDEBUG",
        "CMAKE_CXX_FLAGS_RELEASE": "-fPIC -Wall -pedantic -Wextra -Werror -Wno-missing-braces -Wno-ignored-qualifiers --std=c++20 -fdiagnostics-color -fno-omit-frame-pointer -DNDEBUG -O3",
-        "CMAKE_EXPORT_COMPILE_COMMANDS": {
-          "type": "BOOL",
-          "value": "ON"
-        },
+        "CMAKE_INSTALL_PREFIX": "${sourceDir}/install/${presetName}",
        "CONFIG_DEFAULTS_PATH": "config/profiles/default/*.conf",
-        "DOTNET_BINARY_DIR": "${sourceDir}/build/Spark.Api.Server/$<CONFIG>/bin/net7.0",
+        "DOTNET_BINARY_DIR": "${sourceDir}/build/$<CONFIG>/bin/net7.0",
        "EXPORT_MD_CONSUMER": {
          "type": "BOOL",
          "value": "ON"
@@ -206,8 +218,11 @@
      "description": "Data Stream utils ported over from Edge",
      "binaryDir": "${sourceDir}/build/${presetName}",
      "cacheVariables": {
+        "APP_DATA_DIR": "${dollar}{APPDATA}/bts/DataStream",
+        "APP_DATA_DIR_OVERRIDE": "${dollar}{DATA_STREAM_DATA_DIR}",
        "CONFIG_DEFAULTS_PATH": "config/profiles/default/*.conf;config/profiles/data_stream/*.conf",
-        "DOTNET_BINARY_DIR": "${sourceDir}/build/$<CONFIG>/bin/net7.0;${sourceDir}/build/$<CONFIG>/bin/net7.0-windows"
+        "DOTNET_BINARY_DIR": "${sourceDir}/build/$<CONFIG>/bin/net7.0;${sourceDir}/build/$<CONFIG>/bin/net7.0-windows;${sourceDir}/build/$<CONFIG>/bin/net8.0",
+        "SHARED_MEMORY_PREFIX": "data_stream"
      }
    },

@@ -223,6 +238,8 @@
      "inherits": "sparkd",
      "generator": "Ninja Multi-Config",
      "cacheVariables": {
+        "APP_DATA_DIR": "${dollar}{HOME}/.local/share/DataStream",
+        "APP_DATA_DIR_OVERRIDE": "${dollar}{DATA_STREAM_DATA_DIR}",
        "BUILD_ADMIN_WEB_APP": {
          "type": "BOOL",
          "value": "OFF"
@@ -239,13 +256,14 @@
        "CMAKE_CXX_COMPILER": "clang++",
        "CMAKE_CXX_FLAGS_DEBUG": "-g -fPIC -Wall -pedantic -Wextra -Werror -Wno-missing-braces -Wno-ignored-qualifiers --std=c++20 -fdiagnostics-color -DDEBUG",
        "CMAKE_CXX_FLAGS_RELEASE": "-fPIC -Wall -pedantic -Wextra -Werror -Wno-missing-braces -Wno-ignored-qualifiers --std=c++20 -fdiagnostics-color -fno-omit-frame-pointer -DNDEBUG -O3",
+        "CMAKE_INSTALL_PREFIX": "${sourceDir}/install/${presetName}",
        "CONFIG_DEFAULTS_PATH": "config/profiles/default/*.conf;config/profiles/data_stream/*.conf",
-        "CONFIG_PROFILES": "default;data_stream",
        "DOTNET_BINARY_DIR": "${sourceDir}/build/$<CONFIG>/bin/net7.0;${sourceDir}/build/$<CONFIG>/bin/net8.0",
        "EXPORT_MD_CONSUMER": {
          "type": "BOOL",
          "value": "ON"
-        }
+        },
+        "SHARED_MEMORY_PREFIX": "data_stream"
      }
    }
  ],
@@ -284,7 +302,16 @@
        "lhs": "${hostSystemName}",
        "rhs": "Linux"
      },
-      "hidden": true
+      "hidden": true,
+      "targets": [
+        "data_files_dir",
+        "admin_web_app_bundle",
+        "install",
+        "libspark",
+        "rapidjson_project",
+        "server_layout",
+        "sparkd"
+      ]
    },

    {
@@ -294,14 +321,6 @@
      "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",
@@ -1,5 +0,0 @@
-macro(export_to_parent)
-  foreach(var IN ITEMS ${ARGN})
-    set(${var} ${${var}} PARENT_SCOPE)
-  endforeach()
-endmacro()
@@ -1,66 +0,0 @@
-include_guard(DIRECTORY)
-include(${CMAKE_SOURCE_DIR}/cmake/ExportToParent.cmake)
-include(${CMAKE_SOURCE_DIR}/cmake/TernaryOperator.cmake)
-
-function(init_library)
-  set(_options SHARED STATIC)
-  set(_one_value_args SOURCE_DIR)
-  set(_multi_value_args)
-  cmake_parse_arguments(_ARGS "${_options}" "${_one_value_args}" "${_multi_value_args}" ${ARGN})
-
-  if (_ARGS_SHARED AND _ARGS_STATIC)
-    message(FATAL_ERROR "Invalid args passed to init_library: cannot specify STATIC and SHARED")
-  endif()
-
-  set_ternary(_source_dir _ARGS_SOURCE_DIR _ARGS_SOURCE_DIR ${PROJECT_NAME})
-  # Glob cpp sources
-  file(
-    GLOB_RECURSE ${PROJECT_NAME}_SOURCES
-    RELATIVE ${CMAKE_CURRENT_SOURCE_DIR}
-    ${_source_dir}/*.cpp
-  )
-  # Note: cpp files inside 'tests' dir(s) are considered tests.
-  # Remove tests from main sources, and add them to test sources
-  foreach(item ${${PROJECT_NAME}_SOURCES})
-    if(${item} MATCHES "tests/*.cpp")
-      list(REMOVE_ITEM ${PROJECT_NAME}_SOURCES ${item})
-      list(APPEND ${PROJECT_NAME}_TEST_SOURCES ${item})
-    endif()
-  endforeach()
-
-  export_to_parent(
-    ${PROJECT_NAME}_SOURCES
-    ${PROJECT_NAME}_TEST_SOURCES
-  )
-
-  # Add main library
-  if (_ARGS_STATIC)
-    add_library(${PROJECT_NAME} STATIC ${${PROJECT_NAME}_SOURCES})
-  elseif(_ARGS_SHARED)
-    add_library(${PROJECT_NAME} SHARED ${${PROJECT_NAME}_SOURCES})
-  else()
-    add_library(${PROJECT_NAME} ${${PROJECT_NAME}_SOURCES})
-  endif()
-
-  target_include_directories(
-    ${PROJECT_NAME}
-    PUBLIC
-      $<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}>
-      $<INSTALL_INTERFACE:${CMAKE_INSTALL_INCLUDEDIR}>
-  )
-  target_link_directories(
-    ${PROJECT_NAME}
-    PUBLIC
-      $<BUILD_INTERFACE:${CMAKE_CURRENT_BINARY_DIR}>
-      $<INSTALL_INTERFACE:${CMAKE_INSTALL_LIBDIR}>
-  )
-
-  # Add tests executable (if there are any)
-  if (${PROJECT_NAME}_TEST_SOURCES)
-    add_executable(${PROJECT_NAME}-tests ${${PROJECT_NAME}_TEST_SOURCES})
-    target_link_libraries(${PROJECT_NAME}-tests PRIVATE ${PROJECT_NAME})
-    # Catch2
-    find_package(Catch2 CONFIG REQUIRED COMPONENTS Catch2WithMain)
-    target_link_libraries(${PROJECT_NAME}-tests PRIVATE Catch2::Catch2WithMain)
-  endif()
-endfunction()
@@ -1,55 +0,0 @@
-function(init_shared_library)
-  include(${CMAKE_SOURCE_DIR}/cmake/ExportToParent.cmake)
-  set(source_dir)
-  if (${ARGC} EQUAL 0)
-    set(source_dir ${PROJECT_NAME})
-  elseif(${ARGC} GREATER 1)
-    message(FATAL_ERROR "init_shared_library received invalid arguments. Usage: init_shared_library(<OPTIONAL:source_dir>)")
-  else()
-    set(source_dir ${ARGV})
-  endif()
-
-  # Glob cpp sources
-  file(
-    GLOB_RECURSE ${PROJECT_NAME}_SOURCES
-    RELATIVE ${CMAKE_CURRENT_SOURCE_DIR}
-    ${source_dir}/*.cpp
-  )
-  # Note: cpp files inside 'tests' dir(s) are considered tests.
-  # Remove tests from main sources, and add them to test sources
-  foreach(item ${${PROJECT_NAME}_SOURCES})
-    if(${item} MATCHES "tests/*.cpp")
-      list(REMOVE_ITEM ${PROJECT_NAME}_SOURCES ${item})
-      list(APPEND ${PROJECT_NAME}_TEST_SOURCES ${item})
-    endif()
-  endforeach()
-
-  export_to_parent(
-    ${PROJECT_NAME}_SOURCES
-    ${PROJECT_NAME}_TEST_SOURCES
-  )
-
-  # Add main library
-  add_library(${PROJECT_NAME} SHARED ${${PROJECT_NAME}_SOURCES})
-  target_include_directories(
-    ${PROJECT_NAME}
-    PUBLIC
-      $<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}>
-      $<INSTALL_INTERFACE:${CMAKE_INSTALL_INCLUDEDIR}>
-  )
-  target_link_directories(
-    ${PROJECT_NAME}
-    PUBLIC
-      $<BUILD_INTERFACE:${CMAKE_CURRENT_BINARY_DIR}>
-      $<INSTALL_INTERFACE:${CMAKE_INSTALL_LIBDIR}>
-  )
-
-  # Add tests executable (if there are any)
-  if (${PROJECT_NAME}_TEST_SOURCES)
-    add_executable(${PROJECT_NAME}-tests ${${PROJECT_NAME}_TEST_SOURCES})
-    target_link_libraries(${PROJECT_NAME}-tests PRIVATE ${PROJECT_NAME})
-    # Catch2
-    find_package(Catch2 CONFIG REQUIRED COMPONENTS Catch2WithMain)
-    target_link_libraries(${PROJECT_NAME}-tests PRIVATE Catch2::Catch2WithMain)
-  endif()
-endfunction(init_shared_library)
@@ -1,30 +0,0 @@
-include(${CMAKE_SOURCE_DIR}/cmake/PackBasic.cmake)
-include(GNUInstallDirs)
-
-function(install_basic_config)
-  file(
-    GLOB_RECURSE ${PROJECT_NAME}_HEADERS
-    RELATIVE ${CMAKE_CURRENT_SOURCE_DIR}
-    *.h)
-
-  target_sources(${PROJECT_NAME}
-    PUBLIC
-      FILE_SET HEADERS FILES ${${PROJECT_NAME}_HEADERS})
-
-  install(
-    TARGETS ${PROJECT_NAME}
-    EXPORT ${PROJECT_NAME}Targets
-    RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR}
-    LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR}
-    ARCHIVE DESTINATION ${CMAKE_INSTALL_LIBDIR}
-    FILE_SET HEADERS DESTINATION ${CMAKE_INSTALL_INCLUDEDIR}
-  )
-
-  install(
-    EXPORT ${PROJECT_NAME}Targets
-    FILE ${PROJECT_NAME}Targets.cmake
-    NAMESPACE ${PROJECT_NAME}::
-    DESTINATION ${CMAKE_INSTALL_LIBDIR}/cmake/${PROJECT_NAME})
-
-  pack_basic()
-endfunction()
@@ -1,36 +0,0 @@
-include(CMakePackageConfigHelpers)
-
-function(pack_basic)
-  find_package(Git QUIET)
-
-  if(GIT_FOUND)
-    execute_process(
-      COMMAND ${GIT_EXECUTABLE} describe --tags --always --dirty
-      WORKING_DIRECTORY ${CMAKE_SOURCE_DIR}
-      OUTPUT_VARIABLE PROJECT_VERSION
-      OUTPUT_STRIP_TRAILING_WHITESPACE
-    )
-  endif()
-
-  if(NOT GIT_FOUND OR PROJECT_VERSION STREQUAL "")
-    set(PROJECT_VERSION "0.0.0")
-  endif()
-
-  write_basic_package_version_file(
-    "${CMAKE_CURRENT_BINARY_DIR}/${PROJECT_NAME}ConfigVersion.cmake"
-    VERSION ${PROJECT_VERSION}
-    COMPATIBILITY AnyNewerVersion
-  )
-
-  configure_package_config_file(
-    "${CMAKE_CURRENT_SOURCE_DIR}/Config.cmake.in"
-    "${CMAKE_CURRENT_BINARY_DIR}/${PROJECT_NAME}Config.cmake"
-    INSTALL_DESTINATION ${CMAKE_INSTALL_LIBDIR}/cmake/${PROJECT_NAME}
-  )
-
-  install(
-    FILES
-      "${CMAKE_CURRENT_BINARY_DIR}/${PROJECT_NAME}Config.cmake"
-      "${CMAKE_CURRENT_BINARY_DIR}/${PROJECT_NAME}ConfigVersion.cmake"
-    DESTINATION ${CMAKE_INSTALL_LIBDIR}/cmake/${PROJECT_NAME})
-endfunction()
@@ -0,0 +1,145 @@
+set(Protobuf_PROTOC_EXECUTABLE "${SPARK_BIN}/protoc")
+set(PROTOBUF_INCLUDE_DIRS "${SPARK_INCLUDE}")
+set(PROTOBUF_STATIC_LIB "libprotobuf")
+
+function(Protobuf_Generate_Cpp SRCS HDRS)
+  set(${SRCS})
+  set(${HDRS})
+
+  foreach(FIL ${ARGN})
+    get_filename_component(ABS_FIL ${FIL} ABSOLUTE)
+    get_filename_component(FIL_WE ${FIL} NAME_WE)
+    get_filename_component(FIL_DIR ${FIL} DIRECTORY)
+    if(FIL_DIR)
+      set(FIL_WE "${FIL_DIR}/${FIL_WE}")
+    endif()
+
+    list(APPEND ${SRCS} "${CMAKE_CURRENT_BINARY_DIR}/${FIL_WE}.pb.cc")
+    list(APPEND ${HDRS} "${CMAKE_CURRENT_BINARY_DIR}/${FIL_WE}.pb.h")
+
+    add_custom_command(
+      OUTPUT "${CMAKE_CURRENT_BINARY_DIR}/${FIL_WE}.pb.cc"
+             "${CMAKE_CURRENT_BINARY_DIR}/${FIL_WE}.pb.h"
+      COMMAND
+        ${Protobuf_PROTOC_EXECUTABLE} ARGS --cpp_out=${CMAKE_BINARY_DIR}/src -I
+        ${PROTOBUF_INCLUDE_DIRS} -I ${CMAKE_SOURCE_DIR}/src ${ABS_FIL}
+      DEPENDS ${ABS_FIL}
+      COMMENT "Running C++ protocol buffer compiler on ${FIL}"
+      VERBATIM)
+  endforeach()
+
+  set_source_files_properties(${${SRCS}} ${${HDRS}} PROPERTIES GENERATED TRUE)
+
+  # remove some warnings from protobuf generated files
+  if(WIN32)
+    set_source_files_properties(${${SRCS}} PROPERTIES COMPILE_FLAGS
+                                                      "/wd4309 /wd4838")
+  else()
+    set_source_files_properties(
+      ${${SRCS}}
+      PROPERTIES
+        COMPILE_FLAGS
+        "-Wno-unused-parameter -Wno-effc++ -Wno-pedantic -Wno-sign-compare -Wno-uninitialized"
+    )
+  endif()
+
+  set(${SRCS}
+      ${${SRCS}}
+      PARENT_SCOPE)
+  set(${HDRS}
+      ${${HDRS}}
+      PARENT_SCOPE)
+endfunction()
+
+function(Service_Compiler_Generate_Cpp SRCS HDRS)
+  set(${SRCS})
+  set(${HDRS})
+
+  foreach(FIL ${ARGN})
+    get_filename_component(ABS_FIL ${FIL} ABSOLUTE)
+    get_filename_component(FIL_WE ${FIL} NAME_WE)
+    get_filename_component(FIL_DIR ${FIL} DIRECTORY)
+    if(FIL_DIR)
+      set(FIL_WE "${FIL_DIR}/${FIL_WE}")
+    endif()
+
+    list(APPEND ${SRCS} "${CMAKE_CURRENT_BINARY_DIR}/${FIL_WE}.pb.cc")
+    list(APPEND ${HDRS} "${CMAKE_CURRENT_BINARY_DIR}/${FIL_WE}.pb.h")
+
+    list(APPEND ${SRCS} "${CMAKE_CURRENT_BINARY_DIR}/${FIL_WE}.client.pb.cc")
+    list(APPEND ${HDRS} "${CMAKE_CURRENT_BINARY_DIR}/${FIL_WE}.client.pb.h")
+
+    list(APPEND ${SRCS} "${CMAKE_CURRENT_BINARY_DIR}/${FIL_WE}.server.pb.cc")
+    list(APPEND ${HDRS} "${CMAKE_CURRENT_BINARY_DIR}/${FIL_WE}.server.pb.h")
+
+    set(TEMPLATES
+        ${CMAKE_CURRENT_SOURCE_DIR}/api/service_compiler/templates/cpp/client.pb.cc
+        ${CMAKE_CURRENT_SOURCE_DIR}/api/service_compiler/templates/cpp/client.pb.h
+        ${CMAKE_CURRENT_SOURCE_DIR}/api/service_compiler/templates/cpp/server.pb.cc
+        ${CMAKE_CURRENT_SOURCE_DIR}/api/service_compiler/templates/cpp/server.pb.h
+    )
+
+    if(WIN32)
+      add_custom_command(
+        OUTPUT "${CMAKE_CURRENT_BINARY_DIR}/${FIL_WE}.pb.cc"
+               "${CMAKE_CURRENT_BINARY_DIR}/${FIL_WE}.pb.h"
+               "${CMAKE_CURRENT_BINARY_DIR}/${FIL_WE}.client.pb.cc"
+               "${CMAKE_CURRENT_BINARY_DIR}/${FIL_WE}.client.pb.h"
+               "${CMAKE_CURRENT_BINARY_DIR}/${FIL_WE}.server.pb.cc"
+               "${CMAKE_CURRENT_BINARY_DIR}/${FIL_WE}.server.pb.h"
+        COMMAND SET PYTHONPATH=${SPARK_PYTHON}
+        COMMAND ${CMAKE_SOURCE_DIR}/.venv/Scripts/activate.bat
+        COMMAND
+          ${Protobuf_PROTOC_EXECUTABLE} ARGS --cpp_out=${CMAKE_BINARY_DIR}/src
+          --plugin=protoc-gen-service=${CMAKE_SOURCE_DIR}/src/lib/api/service_compiler/plugin.cmd
+          --service_out=lang=cpp:${CMAKE_BINARY_DIR}/src -I
+          ${PROTOBUF_INCLUDE_DIRS} -I ${CMAKE_SOURCE_DIR}/src ${ABS_FIL}
+        DEPENDS ${ABS_FIL} ${TEMPLATES}
+                ${CMAKE_CURRENT_SOURCE_DIR}/api/service_compiler/plugin.py
+        COMMENT "Running C++ service compiler on ${FIL}"
+        VERBATIM)
+    else()
+      add_custom_command(
+        OUTPUT "${CMAKE_CURRENT_BINARY_DIR}/${FIL_WE}.pb.cc"
+               "${CMAKE_CURRENT_BINARY_DIR}/${FIL_WE}.pb.h"
+               "${CMAKE_CURRENT_BINARY_DIR}/${FIL_WE}.client.pb.cc"
+               "${CMAKE_CURRENT_BINARY_DIR}/${FIL_WE}.client.pb.h"
+               "${CMAKE_CURRENT_BINARY_DIR}/${FIL_WE}.server.pb.cc"
+               "${CMAKE_CURRENT_BINARY_DIR}/${FIL_WE}.server.pb.h"
+        COMMAND ${CMAKE_SOURCE_DIR}/tools/venv_exec.sh
+        ARGS
+          ${Protobuf_PROTOC_EXECUTABLE}
+          --cpp_out=${CMAKE_BINARY_DIR}/src
+          --plugin=protoc-gen-service=${CMAKE_SOURCE_DIR}/src/lib/api/service_compiler/plugin.py
+          --service_out=lang=cpp,make_file_name=${ABS_FIL}:${CMAKE_BINARY_DIR}/src
+          -I ${PROTOBUF_INCLUDE_DIRS} -I ${CMAKE_SOURCE_DIR}/src ${ABS_FIL}
+        DEPENDS ${ABS_FIL} ${TEMPLATES}
+                ${CMAKE_CURRENT_SOURCE_DIR}/api/service_compiler/plugin.py
+        COMMENT "Running C++ service compiler on ${FIL}"
+        VERBATIM)
+    endif()
+
+  endforeach()
+
+  # remove some warnings from protobuf generated files
+  if(WIN32)
+    set_source_files_properties(${${SRCS}} PROPERTIES COMPILE_FLAGS
+                                                      "/wd4309 /wd4838")
+  else()
+    set_source_files_properties(
+      ${${SRCS}}
+      PROPERTIES
+        COMPILE_FLAGS
+        "-Wno-unused-parameter -Wno-effc++ -Wno-pedantic -Wno-sign-compare -Wno-uninitialized"
+    )
+  endif()
+
+  set(${SRCS}
+      ${${SRCS}}
+      PARENT_SCOPE)
+  set(${HDRS}
+      ${${HDRS}}
+      PARENT_SCOPE)
+
+endfunction()
+
@@ -1,67 +0,0 @@
-include_guard(GLOBAL)
-
-function(protobuf_generate_cpp)
-  set(_options)
-  set(_one_value_args CXX_SOURCES CXX_HEADERS CXX_OUT_DIR PROTOC)
-  set(_multi_value_args PROTO_INCLUDE_DIRS PROTO_SOURCES)
-  cmake_parse_arguments(_ARGS "${_options}" "${_one_value_args}" "${_multi_value_args}" ${ARGN})
-
-  if (NOT DEFINED _ARGS_PROTOC)
-    set(_ARGS_PROTOC "${EXTERNALS_BIN}/protoc")
-  endif()
-  set(${_ARGS_CXX_SOURCES})
-  set(${_ARGS_CXX_HEADERS})
-
-  set(_proto_include_cli_args)
-  foreach(_dir ${_ARGS_PROTO_INCLUDE_DIRS})
-    list(APPEND _proto_include_cli_args -I ${_dir})
-  endforeach()
-
-  foreach(_fil ${_ARGS_PROTO_SOURCES})
-    get_filename_component(_abs_fil ${_fil} ABSOLUTE)
-    get_filename_component(_fil_we ${_fil} NAME_WE)
-    get_filename_component(_fil_dir ${_fil} DIRECTORY)
-    if(_fil_dir)
-      set(_fil_we "${_fil_dir}/${_fil_we}")
-    endif()
-    list(APPEND ${_ARGS_CXX_SOURCES} "${_ARGS_CXX_OUT_DIR}/${_fil_we}.pb.cc")
-    list(APPEND ${_ARGS_CXX_HEADERS} "${_ARGS_CXX_OUT_DIR}/${_fil_we}.pb.h")
-    add_custom_command(
-      OUTPUT
-        "${_ARGS_CXX_OUT_DIR}/${_fil_we}.pb.cc"
-        "${_ARGS_CXX_OUT_DIR}/${_fil_we}.pb.h"
-      COMMAND
-        ${_ARGS_PROTOC}
-      ARGS
-        --cpp_out=${_ARGS_CXX_OUT_DIR} ${_proto_include_cli_args} ${_abs_fil}
-      DEPENDS ${_abs_fil}
-      COMMENT "Running C++ protocol buffer compiler on ${_fil}"
-      VERBATIM
-    )
-  endforeach()
-
-  set_source_files_properties(
-    ${${_ARGS_CXX_SOURCES}}
-    ${${_ARGS_CXX_HEADERS}}
-    PROPERTIES
-      GENERATED TRUE
-  )
-
-  # remove some warnings from protobuf generated files
-  if(WIN32)
-    set_source_files_properties(
-      ${${_ARGS_CXX_SOURCES}}
-      PROPERTIES
-        COMPILE_FLAGS "/wd4309 /wd4838"
-    )
-  else()
-    set_source_files_properties(
-      ${${_ARGS_CXX_SOURCES}}
-      PROPERTIES
-        COMPILE_FLAGS "-Wno-unused-parameter -Wno-effc++ -Wno-pedantic -Wno-sign-compare -Wno-uninitialized"
-    )
-  endif()
-
-  set(${_ARGS_CXX_SOURCES} ${${_ARGS_CXX_SOURCES}} PARENT_SCOPE)
-  set(${_ARGS_CXX_HEADERS} ${${_ARGS_CXX_HEADERS}} PARENT_SCOPE)
-endfunction()
@@ -1,49 +0,0 @@
-include_guard(DIRECTORY)
-
-function(protobuf_generate_fs)
-  set(_options)
-  set(_one_value_args TARGET_NAME OUT_DIR PROTOC)
-  set(_multi_value_args PROTO_INCLUDE_DIRS PROTO_SOURCES)
-  cmake_parse_arguments(_ARGS "${_options}" "${_one_value_args}" "${_multi_value_args}" ${ARGN})
-
-  if (NOT DEFINED _ARGS_TARGET_NAME)
-    set(_ARGS_TARGET_NAME "${PROJECT_NAME}_generate_fs_protos")
-  endif()
-  if (NOT DEFINED _ARGS_PROTOC)
-    set(_ARGS_PROTOC "${EXTERNALS_BIN}/protoc")
-  endif()
-
-  set(_proto_include_cli_args)
-  foreach(_dir ${_ARGS_PROTO_INCLUDE_DIRS})
-    list(APPEND _proto_include_cli_args -I ${_dir})
-  endforeach()
-
-  set(_outputs)
-  foreach(_proto_source ${_ARGS_PROTO_SOURCES})
-    # get_filename_component(_abs_proto_source ${_proto_source} ABSOLUTE)
-    get_filename_component(_proto_source_we ${_proto_source} NAME_WE)
-    # get_filename_component(_proto_source_dir ${_proto_source} DIRECTORY)
-    list(APPEND _outputs ${_ARGS_OUT_DIR}/${_proto_source_we}.fable.fs)
-  endforeach()
-
-  set(_venv_exec ${CMAKE_SOURCE_DIR}/tools/venv_exec.sh)
-  set(_plugin_py ${CMAKE_SOURCE_DIR}/src/lib_spark/spark/api/service_compiler/plugin.py)
-  set(_template_fs ${CMAKE_SOURCE_DIR}/src/lib_spark/spark/api/service_compiler/templates/fs/fable.fs)
-  add_custom_command(
-    OUTPUT ${_outputs}
-    WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}
-    COMMAND ${_venv_exec}
-      ${_ARGS_PROTOC}
-      --plugin=protoc-gen-service=${_plugin_py}
-      --service_out=lang=fs,strip_out_path=1:${_ARGS_OUT_DIR}
-      ${_proto_include_cli_args}
-      ${_ARGS_PROTO_SOURCES}
-    DEPENDS
-      ${_venv_exec}
-      ${_plugin_py}
-      ${_template_fs}
-      ${CMAKE_CURRENT_SOURCE_DIR}/package-lock.json
-      ${_ARGS_PROTO_SOURCES}
-  )
-  add_custom_target(${_ARGS_TARGET_NAME} ALL DEPENDS "${_outputs}")
-endfunction()
@@ -1,33 +0,0 @@
-include_guard(DIRECTORY)
-
-function(protobuf_generate_js)
-  set(_options)
-  set(_one_value_args TARGET_NAME OUTPUT)
-  set(_multi_value_args PROTO_INCLUDE_DIRS PROTO_SOURCES)
-  cmake_parse_arguments(_ARGS "${_options}" "${_one_value_args}" "${_multi_value_args}" ${ARGN})
-
-  if (NOT DEFINED _ARGS_TARGET_NAME)
-    set(_ARGS_TARGET_NAME "${PROJECT_NAME}_generate_js_protos")
-  endif()
-
-  set(_proto_include_cli_args)
-  foreach(_dir ${_ARGS_PROTO_INCLUDE_DIRS})
-    list(APPEND _proto_include_cli_args -p ${_dir})
-  endforeach()
-
-  add_custom_command(
-    OUTPUT ${_ARGS_OUTPUT}
-    WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}
-    COMMAND npx
-      --no-install pbjs
-      -t json-module
-      -w commonjs
-      -o ${_ARGS_OUTPUT}
-      ${_proto_include_cli_args}
-      ${_ARGS_PROTO_SOURCES}
-    DEPENDS
-      ${CMAKE_CURRENT_SOURCE_DIR}/package-lock.json
-      ${_ARGS_PROTO_SOURCES}
-  )
-  add_custom_target(${_ARGS_TARGET_NAME} ALL DEPENDS ${_ARGS_OUTPUT})
-endfunction()
@@ -1,51 +0,0 @@
-include_guard(DIRECTORY)
-include(${CMAKE_SOURCE_DIR}/cmake/TernaryOperator.cmake)
-
-function(sym_link_dir)
-  set(_options)
-  set(_one_value_args TARGET_NAME SOURCE DEST COMMENT)
-  set(_multi_value_args)
-  cmake_parse_arguments(_ARGS "${_options}" "${_one_value_args}" "${_multi_value_args}" ${ARGN})
-  add_custom_command(
-    OUTPUT ${_ARGS_DEST}
-    COMMAND ln ARGS -sf ${_ARGS_SOURCE} ${_ARGS_DEST}
-  )
-  set_ternary(_comment _ARGS_COMMENT "${_ARGS_COMMENT}" "linking dir ${_ARGS_SOURCE} -> ${_ARGS_DEST}")
-  add_custom_target(
-    ${_ARGS_TARGET_NAME} ALL
-    DEPENDS ${_ARGS_DEST}
-    COMMENT "${_comment}"
-  )
-endfunction()
-
-function(sym_link_file)
-  set(_options)
-  set(_one_value_args TARGET_NAME SOURCE DEST INSTALL_DEST)
-  set(_multi_value_args)
-  cmake_parse_arguments(_ARGS "${_options}" "${_one_value_args}" "${_multi_value_args}" ${ARGN})
-  add_custom_command(
-    OUTPUT ${_ARGS_DEST}
-    COMMAND ln ARGS -s ${_ARGS_SOURCE} ${_ARGS_DEST}
-  )
-  add_custom_target(
-    ${_ARGS_TARGET_NAME} ALL
-    DEPENDS ${_ARGS_DEST}
-  )
-  if (DEFINED _ARGS_INSTALL_DEST)
-    install(
-      FILES
-      ${_ARGS_SOURCE}
-      DESTINATION ${_ARGS_INSTALL_DEST}
-    )
-  endif()
-endfunction()
-
-function(sym_link_local_lib LIB_NAME)
-  set(_lib_file_name "${CMAKE_SHARED_LIBRARY_PREFIX}${LIB_NAME}.so")
-  file(
-    CREATE_LINK
-      "${CMAKE_BINARY_DIR}/src/lib_${LIB_NAME}/${_lib_file_name}"
-      "${CMAKE_CURRENT_BINARY_DIR}/${_lib_file_name}"
-    SYMBOLIC
-  )
-endfunction()
@@ -1,9 +0,0 @@
-include_guard(GLOBAL)
-
-macro(set_ternary RESULT CONDITION TRUE_VALUE FALSE_VALUE)
-  if(${CONDITION})
-    set(${RESULT} ${TRUE_VALUE})
-  else()
-    set(${RESULT} ${FALSE_VALUE})
-  endif()
-endmacro()
@@ -1,51 +0,0 @@
-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
@@ -1,72 +0,0 @@
-services:
-  sparkd:
-    build:
-      dockerfile: src/server/sparkd/Dockerfile
-    command: [ "./sparkd", "run" ]
-    ports: [ "8000:8000", "8001:8001", "8002:8002" ]
-
-  pubsub:
-    environment:
-      - DOTNET_ENVIRONMENT=Staging
-    build:
-      dockerfile: src/DataStreamSuite/PubSubServer/Dockerfile
-    ports:
-      - 22019:22019
-    command: [ "./PubSubServer" ]
-
-  md-publisher:
-    build:
-      dockerfile: src/DataStreamSuite/DataStreamPublisher/Dockerfile
-    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: src/DataStreamSuite/Bts.DataStreamWebApp.Server/Dockerfile
-    command: [ "./Bts.DataStreamWebApp.Server" ]
-    environment:
-      - ASPNETCORE_ENVIRONMENT=Staging
-
-  api-server:
-    profiles:
-      - api-server
-    depends_on:
-      - sparkd
-    ports:
-      - 8008:8008
-      - 9443:9443
-    build:
-      dockerfile: src/client/spark_api_server/Dockerfile
-    command: [ "./spark_api_server", "run" ]
-    environment:
-      - ASPNETCORE_ENVIRONMENT=Staging
-
-  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" ]
@@ -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, domain::protobufs::TradingStatus) override;
+virtual void on_status(SecurityKey, co2::TradingStatus) override;
 ```

 # Child Orders
@@ -1,40 +0,0 @@
-FROM ubuntu:22.04
-
-ARG DEBIAN_FRONTEND=noninteractive
-
-RUN apt-get update \
-  && apt-get install -y pkg-config \
-  && apt-get install -y locales \
-  && apt-get install -y ca-certificates \
-  && apt-get install -y libssh2-1-dev \
-  && apt-get install -y software-properties-common \
-  && 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++-$gcc_major
-
-RUN apt-get update \
-  && apt-get install -y dotnet7
-
-RUN locale-gen en_US.UTF-8
-
-ARG docker_user="bts"
-ARG docker_uid="1000"
-ARG docker_pass="bts"
-# ARG entrypoint
-
-RUN \
-  groupadd -g "$docker_uid" "$docker_user" \
-  && useradd \
-  -m \
-  -u "$docker_uid" \
-  -g "$docker_uid" \
-  -G sudo \
-  --password "$(openssl passwd -1 "$docker_pass")" \
-  "$docker_user"
-
-USER bts
-WORKDIR /home/bts
@@ -1,11 +1,19 @@
 namespace Bts.BooleanExpressions;

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

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

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

 %%

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

-{StringConstant} {
-   yylval.String = yytext.Substring(1, yytext.Length - 2).Replace(@"\'", "'");
-   return (int)Token.STRING_CONSTANT;
-} 
-
 {NullConstant} {
   yylval.Null = DBNull.Value;
   return (int)Token.NULL_CONSTANT;
@@ -1 +0,0 @@
-VITE_DATASTREAM_WEBSOCKET_URL=wss://localhost:443
@@ -1 +0,0 @@
-VITE_DATASTREAM_WEBSOCKET_URL=wss://localhost:443
@@ -12,18 +12,6 @@ module.exports = {
  settings: { react: { version: '18.3.1' } },
  plugins: ['react-refresh'],
  rules: {
-    "import/order": [
-      "error",
-      {
-        "groups": [
-          "builtin",
-          "external",
-          "internal",
-          ["parent", "sibling", "index"]
-        ],
-        "newlines-between": "always"
-      }
-    ],
    'react-refresh/only-export-components': [
      'warn',
      { allowConstantExport: true },
@@ -19,13 +19,9 @@
    "@mui/material": "^5.15.20",
    "@mui/x-data-grid": "^7.7.1",
    "bulma": "^1.0.1",
-    "classnames": "^2.5.1",
    "react": "^18.3.1",
-    "react-data-grid": "^7.0.0-beta.44",
    "react-data-table-component": "^7.6.2",
    "react-dom": "^18.3.1",
-    "react-json-view-lite": "^1.4.0",
-    "react-pro-sidebar": "^1.1.0",
    "react-use-websocket": "^4.8.1",
    "rpc-websockets": "^7.11.2"
  },
@@ -34,11 +30,9 @@
    "@types/react-dom": "^18.3.0",
    "@vitejs/plugin-react": "^4.3.1",
    "eslint": "^8.57.0",
-    "eslint-plugin-import": "^2.29.1",
    "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"
  }
 }
@@ -1,40 +0,0 @@
-import { Sidebar, Menu, MenuItem, Submenu, Logo } from "react-mui-sidebar";
-import './App.css';
-
-const AnimatedSideBar = () => {
-  return (
-    <Sidebar className={"sidebar-container"} width={"270px"}>
-      <Logo img="https://adminmart.com/wp-content/uploads/2024/03/logo-admin-mart-news.png">
-        AdminMart
-      </Logo>
-      <Menu subHeading="HOME">
-        <MenuItem link="/" badge="true">
-          Modern
-        </MenuItem>
-        <MenuItem>eCommerce</MenuItem>
-        <MenuItem>Analytical</MenuItem>
-      </Menu>
-      <Menu subHeading="APPS">
-        <MenuItem>Chat</MenuItem>
-        <MenuItem>Calendar</MenuItem>
-      </Menu>
-      <Menu subHeading="OTHERS">
-        <Submenu title="Menu Level">
-          <MenuItem>Post</MenuItem>
-          <MenuItem>Details</MenuItem>
-          <Submenu title="Level 2">
-            <MenuItem>new</MenuItem>
-            <MenuItem>Hello</MenuItem>
-          </Submenu>
-        </Submenu>
-
-        <MenuItem>Chip</MenuItem>
-        <MenuItem target="_blank" link="google.com">
-          External Link
-        </MenuItem>
-      </Menu>
-    </Sidebar>
-  );
-};
-
-export default AnimatedSideBar;
@@ -2,54 +2,6 @@
@use "@material/icon-button";
@use "@material/data-table/data-table";

-.root-div {
-  display: flex;
-  flex-direction: row;
-  align-items: flex-start;
-}
-
-.main-content-div {
-  display: flex;
-  flex-direction: row;
-}
-
-.title-div {
-  width: 100%;
-}
-
-.container {
-  display: flex;
-}
-
-.container-column {
-  display: flex;
-  flex-direction: column;
-}
-
-.container-row {
-  display: flex;
-  flex-direction: row;
-  align-items: stretch;
-}
-
-box.query-input-form {
-   /* p: 2, display: "flex", flexFlow: "column", alignItems: "stretch"  */
-  display: flex;
-  flex-flow: column;
-  align-items: stretch;
-}
-
-/* li.ps-menuitem-root:hover {
-  background-color: #ff9922;  
-} */
-
-.container-row-centered {
-  display: flex;
-  flex-direction: row;
-  justify-content: center;
-  align-items: center;
-}
-
 h1#main-header {
  padding: 4px 8px 4px 8px;
  text-align: center;
@@ -74,28 +26,3 @@ td#cell-string {
 td#cell-date-time {
  text-align: center;
 }
-
-/* Sidebar.css */
-/* .sidebar-container {
-  display: flex;
-  flex-direction: column;
-}
-
-.sidebar {
-  position: relative;
-  top: 0;
-  left: 0;
-  height: 100vh;
-  background-color: #333;
-  color: white;
-  overflow: hidden;
-  transition: transform 0.3s ease;
-}
-
-.sidebar.closed {
-  width: 0;
-}
-
-.sidebar.open {
-  width: 250px;
-} */
@@ -1,171 +1,22 @@
-import { ThemeProvider, CssBaseline, GlobalStyles } from '@mui/material';
-import QueryStatusView from './QueryStatusView';
+import { createTheme, ThemeProvider, CssBaseline } from '@mui/material';
 import useMediaQuery from '@mui/material/useMediaQuery';
 import QueryControl from './QueryControl';
-import DataTable from './DataTable';
-import { useState, useEffect, useMemo } from 'react';
-import useWebSocket, { ReadyState } from 'react-use-websocket';
-import Sidebar from './SideBar';
 import getTheme from './Theme';
-
 import '@fontsource/noto-sans';
 import './App.css';
-import './SideBar.css';
-
-const webSocketUrl = import.meta.env.VITE_DATASTREAM_WEBSOCKET_URL;
-// Always use the same subscription id (1), because we only show 1 table at a time.
-// The server will automatically dispose the previous subscription and start a new one
-// if we're currently subscribed to another query.
-const subscriptionId = "1";
-
-var rpcReqIdCounter = 1;
-
-function subscribeReq(query) {
-  return {
-    jsonrpc: "2.0",
-    id: rpcReqIdCounter++,
-    method: "subscribe",
-    params: {
-      subscription_id: subscriptionId,
-      query: query
-    }
-  };
-}
-
-function unsubscribeReq() {
-  return {
-    jsonrpc: "2.0",
-    id: rpcReqIdCounter++,
-    method: "unsubscribe",
-    params: {
-      subscription_id: subscriptionId,
-    }
-  };
-}

 const App = () => {
  const prefersDarkMode = useMediaQuery('(prefers-color-scheme: dark)');
  const theme = getTheme({ mode: prefersDarkMode ? 'dark' : 'light' });
-  const globalStyles = {
-    ':root': {
-      '--primary-color': theme.palette.primary.main,
-      '--primary-dark-color': theme.palette.primary.dark,
-      '--secondary-color': theme.palette.secondary.main,
-      '--secondary-dark-color': theme.palette.secondary.dark,
-      '--background-color': theme.palette.background.default,
-    },
-  };
-  const [blueTable, setBlueTable] = useState({ columns: null, rows: null });
-  const [queryError, setQueryError] = useState(null);
-  const [queryState, setQueryState] = useState("Unsubscribed");
-  const queryStateDetails = useMemo(() => {
-    if (queryState == "Unsubscribed") {
-      return "Enter query above, then click the play button to subscribe";
-    }
-    if (queryState == "Subscribed") {
-      return null;
-    }
-  }, [queryState]);
-  const [sidebarIsOpen, setSidebarIsOpen] = useState(false);
-  const [cannedQuery, setCannedQuery] = useState(null);

-  const onCannedQueryClicked = (cannedQuery) => {
-    console.info(`Executing canned query: ${JSON.stringify(cannedQuery)}`);
-    const queryText = cannedQuery.query.join("\n");
-    setCannedQuery({ queryText: queryText, clickTime: Date.now() });
-    subscribe(queryText);
-  };
-
-  const { sendJsonMessage, getWebSocket, readyState } = useWebSocket(
-    webSocketUrl,
-    {
-      onOpen: (e) => console.info(`WebSocket open. ${JSON.stringify(e)}`),
-      onClose: (e) => console.info(`WebSocket closed. ${JSON.stringify(e)}`),
-      onError: (e) => console.error(`WebSocket error: ${JSON.stringify(e)}`),
-      shouldReconnect: () => true,
-    });
-
-  useEffect(() => {
-    console.info(`WebSocket readyState: ${readyState}`)
-    if (readyState != ReadyState.OPEN) {
-      return;
-    }
-    const ws = getWebSocket();
-    ws.onmessage = e => {
-      console.info(`Received message: ${e.data}`);
-      const msg = JSON.parse(e.data);
-      setQueryError(msg.error);
-      if (msg.error != null) {
-        setQueryState("Error");
-      } else if (msg.id != null) {
-        setQueryState(msg.result.status);
-      } else {
-        console.assert(msg.params.subscription_id == subscriptionId);
-        console.info(`Received rows: ${msg.params.table.all}`);
-        setBlueTable({ columns: msg.params.table.columns, rows: msg.params.table.all });
-      }
-    };
-  }, [getWebSocket, readyState]);
-
-  const subscribe = (query) => {
-    const req = subscribeReq(query);
-    console.info(`Subscribing: ${JSON.stringify(subscribeReq(query))}`);
-    sendJsonMessage(req);
-  };
-
-  const unsubscribe = () => {
-    const req = unsubscribeReq();
-    console.info(`Unsubscribing: ${JSON.stringify(req)}`);
-    sendJsonMessage(req);
-  };
-
-  const onOpened = () => {
-    setSidebarIsOpen(true);
-  };
-
-  const onClosed = () => {
-    setSidebarIsOpen(false);
-  };
-
-  const sidebarWidth = sidebarIsOpen ? '250px' : '65px';
  return (
    <ThemeProvider theme={theme}>
      <CssBaseline />
-      <GlobalStyles styles={globalStyles} />
-      <div className='root-div'>
-        <div style={{
-          display: 'flex',
-          flexDirection: 'column',
-          alignItems: 'flex-start',
-          flexWrap: 'nowrap',
-          width: sidebarWidth,
-          transition: 'width 0.3s ease',
-        }}>
-          <Sidebar onSelection={onCannedQueryClicked} onOpened={onOpened} onClosed={onClosed} />
-        </div>
-        <div style={{
-          display: 'flex',
-          flexDirection: 'column',
-          left: sidebarWidth,
-          width: '100%',
-          transition: 'width 0.3s ease',
-        }}>
-          <div style={{ width: '100%', display: 'flex', flexDirection: 'column', alignItems: 'flex-start', margin: theme.spacing(2, 0, 0, 0) }}>
-            <div style={{ width: '90%', rightMargin: '100px' }}>
-              <QueryControl
-                queryState={queryState}
-                queryText={cannedQuery?.queryText}
-                queryTextResetTime={cannedQuery?.clickTime}
-                subscribe={subscribe}
-                unsubscribe={unsubscribe} />
-            </div>
-            <div style={{ width: '90%', rightMargin: '100px' }}>
-              <QueryStatusView queryState={queryState} details={queryStateDetails} error={queryError} />
-              <DataTable columns={blueTable?.columns ?? []} rows={blueTable?.rows ?? []} />
-            </div>
-          </div>
-        </div>
-      </div>
+      <h1 id='main-header' style={{
+        color: theme.palette.text.primary,
+        fontFamily: 'Noto Sans',
+      }}>BTS Cloud Streams</h1>
+      <QueryControl websocketUrl="ws://localhost:5000/ws" theme={theme} />
    </ThemeProvider>
  );
 };
@@ -1,53 +0,0 @@
-@use "@material/checkbox";
-@use "@material/icon-button";
-@use "@material/data-table/data-table";
-
-.data-grid-container {
-  overflow: auto;
-  white-space: nowrap;
-}
-
-
-.data-grid {
-  max-height: 1000px;
-}
-
-div[role=columnheader] {
-  border-top: 0px;
-  border-bottom: 0px;
-  background-color: var(--primary-dark-color);
-}
-
-/* div[role=columnheader] {
-  border-top: 0px;
-  border-bottom: 0px;
-  background-color: var(--primary-dark-color);
-}
-
-.rdg-row {
-  border: 0px;
-  border-top: 0px;
-  border-bottom: 0px;
-  background-color: rgba(var(--primary-dark-color), 0.8);
-  color: var(--primary-color);
-}
-
-.rdg-row-odd {
-  border: 0px;
-  border-top: 0px;
-  border-bottom: 0px;
-  background-color: var(--primary-dark-color);
-  color: var(--primary-color);
-}
-
-.rdg-cell {
-  border-bottom: 0px;
-}
-
-.rdg-cell.even {
-  border-bottom: 5px;
-}
-
-.rdg-cell.odd {
-  border-bottom: 5px;
-} */
@@ -1,40 +1,19 @@
 import PropTypes from 'prop-types';
-import { useTheme } from '@mui/material/styles';
 import { DataGrid } from '@mui/x-data-grid';
-import './DataGrid.css'
-import { useMemo, useState } from 'react';
+
+function getGridColDef(col) {
+  return {
+    field: col.name,
+    headerName: col.name,
+  };
+}

 export default function DataTable({ columns, rows }) {
-  const theme = useTheme();
-  const [columnWidths, setColumnWidths] = useState({});
-
-  const handleColumnResize = (params) => {
-    const newWidth = params.width;
-    setColumnWidths((prevWidths) => ({
-      ...prevWidths,
-      [params.colDef.field]: params.width,
-    }));
-  };
-
-  const getGridColDef = useMemo(() => {
-    return col => {
-      return {
-        field: col.name,
-        headerName: col.name,
-        width: columnWidths[col.name],
-      };
-    }
-  }, [columnWidths]);
-
  return (
    <DataGrid
-      className='data-grid-container'
-      autosizeOnMount={false}
-      columns={columns?.map(getGridColDef) ?? []}
-      onColumnResize={handleColumnResize}
-      rows={rows ?? []}
+      columns={columns.map(getGridColDef)}
+      rows={rows}
      sx={{
-        margin: theme.spacing(2, 0, 0, 0),
        borderColor: 'primary.main',
        backgroundColor: 'primary.dark',
        color: 'text.primary',
@@ -70,5 +49,4 @@ DataTable.propTypes = {
    })
  ).isRequired,
  rows: PropTypes.arrayOf(PropTypes.array).isRequired,
-  apiRef: PropTypes.object,
 };
@@ -1,119 +1,100 @@
 import PropTypes from 'prop-types';
 import DataTable from './DataTable';
-import { useRef, useState, useEffect } from 'react';
-import { useGridApiRef } from '@mui/x-data-grid';
-import Box from '@mui/material/Box';
-import Button from '@mui/material/Button';
-import Grid from '@mui/material/Grid';
-import Paper from '@mui/material/Paper';
-import PlayArrowIcon from '@mui/icons-material/PlayArrow';
-import StopIcon from '@mui/icons-material/Stop';
-import TextField from '@mui/material/TextField';
-import Tooltip from '@mui/material/Tooltip';
+import QueryInputForm from './QueryInputForm';
+import Container from '@mui/material/Container';
+import React from 'react';

-const QueryControl = (props) => {
-  const { queryState, queryText, queryTextResetTime, subscribe, unsubscribe } = props;
-  // const theme = useTheme();
-  let textInput = useRef();
-  const [queryTextChangeTime, setQueryTextChangeTime] = useState(null);
-  useEffect(() => {
-    if (queryText == null || textInput.current == null) {
-      return;
-    }
-    // Init text field (unless a non-empty string is already present, or the user has modified
-    // the query - we don't want to overwrite their changes).
-    if (queryTextChangeTime == null || queryTextResetTime > queryTextChangeTime) {
-      console.info(`Initializing query text: ${queryText}`)
-      textInput.current.value = queryText;
-    }
-  }, [queryText, queryTextChangeTime, queryTextResetTime]);
-  const onClearClick = () => {
-    textInput.current.value = '';
-  };
+var rpcReqIdCounter = 1;

-  const onRunClick = () => {
-    subscribe(textInput.current.value);
-  };
-
-  const onStopClick = () => {
-    unsubscribe();
-  };
-
-  const onKeyDown = (e) => {
-    // Detect keyboard shortcuts.
-    //   Ctrl+Enter : Run
-    if (e.ctrlKey && e.key === 'Enter') {
-      onRunClick();
+function subscribeReq(query) {
+  return {
+    jsonrpc: "2.0",
+    id: rpcReqIdCounter++,
+    method: "subscribe",
+    params: {
+      subscription_id: "1",
+      query: query
    }
  };
+}

-  const onChange = (e) => {
-    // So we know not to overwrite the changes with the canned query on re-render
-    setQueryTextChangeTime(Date.now());
+function unsubscribeReq() {
+  return {
+    jsonrpc: "2.0",
+    id: rpcReqIdCounter++,
+    method: "unsubscribe",
+    params: {
+      subscription_id: "1",
+    }
  };
+}

-  return (
-    <Box sx={{ display: "flex", flexFlow: "column" }}>
-      <Paper elevation={3} sx={{ color: 'primary.main' }}>
-        <Box sx={{ p: 2 }}>
-          <TextField
-            fullWidth
-            multiline
-            rows={10}
-            variant="outlined"
-            onChange={onChange}
-            onKeyDown={onKeyDown}
-            inputRef={textInput}
-            placeholder="Enter Query..."
-          />
-        </Box>
-        <Box sx={{ p: 2, borderTop: 1 }}>
-          <Grid container spacing={2} justifyContent="flex-start">
-            <Grid item xs>
-              <Tooltip title="Clear Query Text">
-                <Button onClick={onClearClick} sx={{ padding: '11px', color: 'text.dark' }}>
-                  Clear
-                </Button>
-              </Tooltip>
-            </Grid>
-            <Grid item>
-              <Tooltip title="Run (Ctrl+Enter)">
-                <Button onClick={onRunClick} sx={{
-                  color: `queryStartButton.${queryState}.color`,
-                  bgcolor: `queryStartButton.${queryState}.backgroundColor`,
-                  padding: '11px'
-                }}>
-                  <PlayArrowIcon />
-                </Button>
-              </Tooltip>
-            </Grid>
-            <Grid item>
-              <Tooltip title="Stop">
-                <Button onClick={onStopClick} sx={{
-                  color: `queryStopButton.${queryState}.color`,
-                  bgcolor: `queryStopButton.${queryState}.backgroundColor`,
-                  padding: '11px'
-                }}>
-                  <StopIcon />
-                </Button>
-              </Tooltip>
-            </Grid>
-          </Grid>
-        </Box>
-      </Paper>
-    </Box>
-  );
-};
+class QueryControl extends React.Component {
+  constructor({ websocketUrl, theme }) {
+    super(websocketUrl);
+    console.log('Connecting to WebSocket:', websocketUrl);
+    this.state = {
+      rows: null,
+      ws: new WebSocket(websocketUrl),
+      columns: null,
+      isRunning: false,
+      theme: theme,
+    };
+    this.state.ws.onopen = () => {
+      console.info('WebSocket open');
+    };
+    this.state.ws.onclose = () => {
+      console.info('WebSocket closed');
+    };
+    this.state.ws.onmessage = e => {
+      console.info(`Received message: ${e.data}`);
+      const msg = JSON.parse(e.data);
+      if (msg.id != null) {
+        let newState = { ...this.state };
+        newState.isRunning = msg.result.status == 'Subscribed';
+        this.setState(newState);
+      } else {
+        let newState = { ...this.state };
+        newState.rows = msg.params.all;
+        console.info(`Received rows: ${newState.rows}`);
+        newState.columns = msg.params.columns;
+        this.setState(newState);
+      }
+    };
+
+    this.start = (query) => {
+      this.state.ws.send(JSON.stringify(subscribeReq(query)));
+    };
+
+    this.stop = () => {
+      this.state.ws.send(JSON.stringify(unsubscribeReq()));
+    };
+  }
+
+  componentWillUnmount() {
+    if (this.state.ws) {
+      console.warn('Closing websocket because component is unmounting');
+      this.state.ws.close();
+    }
+  }
+
+  render() {
+    console.info('Rendering');
+    return (
+      <Container>
+        <QueryInputForm isRunning={this.state.isRunning} onStart={this.start} onStop={this.stop} />
+        {
+          this.state.rows == null ? <p style={{ color: this.state.theme.palette.warning.main }}>No data received</p> :
+            <DataTable columns={this.state.columns} rows={this.state.rows} />
+        }
+      </Container>
+    );
+  }
+}

 QueryControl.propTypes = {
-  columns: PropTypes.array,
-  rows: PropTypes.array,
-  isRunning: PropTypes.bool,
-  queryText: PropTypes.string,
-  queryTextResetTime: PropTypes.number,
-  queryState: PropTypes.string,
-  subscribe: PropTypes.func,
-  unsubscribe: PropTypes.func,
+  websocketUrl: PropTypes.string.isRequired,
+  theme: PropTypes.object.isRequired,
 };

 export default QueryControl;
@@ -0,0 +1,93 @@
+import { useRef } from 'react';
+import Box from '@mui/material/Box';
+import Button from '@mui/material/Button';
+import Grid from '@mui/material/Grid';
+import Paper from '@mui/material/Paper';
+import PlayArrowIcon from '@mui/icons-material/PlayArrow';
+import PropTypes from 'prop-types';
+import StopIcon from '@mui/icons-material/Stop';
+import TextField from '@mui/material/TextField';
+import Tooltip from '@mui/material/Tooltip';
+
+const QueryInputForm = ({ isRunning, onStart, onStop }) => {
+  let textInput = useRef(null);
+
+  const onClearClick = () => {
+    textInput.current.value = '';
+  };
+
+  const onRunClick = () => {
+    onStart(textInput.current.value);
+  };
+
+  const onStopClick = () => {
+    onStop();
+  };
+
+  const onKeyDown = (e) => {
+    // Detect keyboard shortcuts.
+    //   Ctrl+Enter : Run
+    if (e.ctrlKey && e.key === 'Enter') {
+      onRunClick();
+    }
+  };
+
+  return (
+    <Box sx={{ p: 2 }}>
+      <Paper elevation={3} sx={{ color: 'primary.main' }}>
+        <Box sx={{ p: 2 }}>
+          <TextField
+            fullWidth
+            multiline
+            rows={10}
+            variant="outlined"
+            onKeyDown={onKeyDown}
+            inputRef={textInput}
+            placeholder="Enter Query..."
+          />
+        </Box>
+        <Box sx={{ p: 2, borderTop: 1 }}>
+          <Grid container spacing={2} justifyContent="flex-start">
+            <Grid item xs>
+              <Tooltip title="Clear Query Text">
+                <Button onClick={onClearClick} sx={{ padding: '11px', color: 'text.dark' }}>
+                  Clear
+                </Button>
+              </Tooltip>
+            </Grid>
+            <Grid item>
+              <Tooltip title="Run (Ctrl+Enter)">
+                <Button onClick={onRunClick} sx={{
+                  color: `query_start_button.${isRunning ? 'active' : 'inactive'}.color`,
+                  bgcolor: `query_start_button.${isRunning ? 'active' : 'inactive'}.background_color`,
+                  padding: '11px'
+                }}>
+                  <PlayArrowIcon />
+                </Button>
+              </Tooltip>
+            </Grid>
+            <Grid item>
+              <Tooltip title="Stop">
+                <Button onClick={onStopClick} sx={{
+                  color: `query_stop_button.${isRunning ? 'inactive' : 'active'}.color`,
+                  bgcolor: `query_stop_button.${isRunning ? 'inactive' : 'active'}.background_color`,
+                  padding: '11px'
+                }}>
+                  <StopIcon />
+                </Button>
+              </Tooltip>
+            </Grid>
+          </Grid>
+        </Box>
+      </Paper>
+    </Box>
+  );
+};
+
+QueryInputForm.propTypes = {
+  isRunning: PropTypes.bool.isRequired,
+  onStart: PropTypes.func.isRequired,
+  onStop: PropTypes.func.isRequired,
+};
+
+export default QueryInputForm;
@@ -1,73 +0,0 @@
-import { useState } from 'react';
-import PropTypes from 'prop-types';
-import { Box, Typography, Collapse } from '@mui/material';
-import Alert from '@mui/material/Alert';
-import AlertTitle from '@mui/material/AlertTitle';
-import { useTheme } from '@mui/material/styles';
-import { alpha } from '@mui/system';
-
-const QueryStatusView = ({ queryState, details, error }) => {
-  const theme = useTheme();
-  const [open, setOpen] = useState(false);
-
-  let header = queryState;
-  let headerContent = null;
-  let detailElements = [];
-  let severity = queryState == "Subscribed" ? "success" : "info";
-  let cursor = details == null ? "default" : "pointer";
-  if (error != null) {
-    severity = "error";
-    cursor = "pointer";
-    header = `Error Code: ${error.code}`;
-    headerContent = error.message;
-    detailElements.push(<Typography variant="body1">{error.data.error_message}</Typography>);
-    detailElements.push(<Typography variant="subtitle1">Stack Trace:</Typography>);
-    (error.data.stack_trace ?? []).forEach(line => detailElements.push(
-      <Typography variant="body2" component="pre" sx={{ whiteSpace: 'pre-wrap' }}>
-        {line}
-      </Typography>));
-  } else if (details != null) {
-    detailElements.push(<Typography variant="body1">{details}</Typography>);
-  }
-  return (
-    <Box sx={{ margin: theme.spacing(2, 0, 0, 0) }}>
-      <Alert
-        severity={severity}
-        onClick={() => setOpen(!open)}
-        sx={{
-          margin: theme.spacing(2, 0, 0, 0),
-          cursor: cursor,
-        }}>
-        <AlertTitle>{header}</AlertTitle>
-        {headerContent}
-      </Alert>
-      {detailElements.length == 0
-        ? null
-        : <Collapse in={open}>
-          <Box
-            sx={{
-              backgroundColor: alpha(theme.palette[severity].light, 0.75),
-              color: theme.palette[severity].contrastText,
-              padding: theme.spacing(2),
-              marginTop: theme.spacing(0),
-              borderRadius: theme.shape.borderRadius,
-            }}
-          >
-            {detailElements}
-          </Box>
-        </Collapse>}
-    </Box>
-  );
-};
-
-QueryStatusView.propTypes = {
-  queryState: PropTypes.string,
-  details: PropTypes.string,
-  error: PropTypes.shape({
-    code: PropTypes.number,
-    message: PropTypes.string,
-    data: PropTypes.object,
-  })
-};
-
-export default QueryStatusView;
@@ -1,27 +0,0 @@
-import 'react-data-grid/lib/styles.css';
-import PropTypes from 'prop-types';
-import DataGrid from 'react-data-grid';
-import './DataGrid.css';
-
-function getGridColDef(col) {
-  return {
-    key: col.name,
-    name: col.name,
-  };
-}
-
-export default function ReactDataGrid({columns, rows}) {
-  return (
-    <DataGrid className={"data-grid"} rows={rows} columns={columns.map(getGridColDef)} />
-  )
-}
-
-ReactDataGrid.propTypes = {
-  columns: PropTypes.arrayOf(
-    PropTypes.shape({
-      name: PropTypes.string.isRequired,
-      type: PropTypes.string.isRequired,
-    })
-  ).isRequired,
-  rows: PropTypes.arrayOf(PropTypes.array).isRequired,
-};
@@ -1,98 +0,0 @@
-/* Sidebar.css */
-.app-container {
-  display: flex;
-  width: 100%;
-  overflow: hidden;
-  flex-direction: row;
-  justify-content: flex-start;
-  align-items: flex-start;
-}
-
-.sidebar {
-  display: flex;
-  flex-direction: row;
-  justify-content: flex-start;
-  align-items: flex-start;
-  background-color: transparent;
-  color: white;
-  overflow: hidden;
-  transition: width 0.3s ease;
-}
-
-.sidebar.open {
-  width: 100%;
-}
-
-.sidebar.closed {
-  width: 0%;
-}
-
-.sidebar-toggle-button {
-  border: 0px;
-  border-radius: 50%;
-  box-shadow: rgba(9, 30, 66, 0.08) 0px 0px 0px 1px, rgba(9, 30, 66, 0.08) 0px 2px 4px 1px;
-  color: var(--primary-color);
-  cursor: pointer;
-  height: 24px;
-  opacity: 1;
-  outline: 0px;
-  padding: 0px;
-  background-color: transparent;
-  transition: background-color 100ms linear 0s, color 100ms linear 0s, opacity 300ms cubic-bezier(0.2, 0, 0, 1) 0s, transform 300ms cubic-bezier(0.2, 0, 0, 1) 0s;
-  width: 20%;
-}
-
-.sidebar-toggle-button:hover {
-  transition: background-color 100ms linear 0s, color 100ms linear 0s, opacity 300ms cubic-bezier(0.2, 0, 0, 1) 0s, transform 300ms cubic-bezier(0.2, 0, 0, 1) 0s;
-}
-
-.main-content.open {
-  width: 165px;
-  transition: width 0.3s ease;
-  background-color: transparent;
-}
-
-.main-content.closed {
-  width: 0%;
-  /* min-width: 25px; */
-  transition: width 0.3s ease;
-  background-color: transparent;
-}
-
-.sidebar-menu-item {
-  width: 100%;
-  box-sizing: border-box;
-}
-
-.sidebar-menu-item.open {
-  width: 100%;
-  /* justify-content: flex-start; */
-  transition: width 0.3s ease;
-}
-
-.sidebar-menu-item.closed {
-  width: 0%;
-  min-width: 0px;
-  /* justify-content: flex-start; */
-  transition: width 0.3s ease;
-}
-
-.sidebar-menu-item-content.open {
-  width: 100%;
-  /* justify-content: flex-start; */
-  transition: width 0.3s ease;
-}
-
-.sidebar-menu-item-content.closed {
-  width: 0px;
-  /* justify-content: flex-start; */
-  transition: width 0.3s ease;
-}
-
-/* Ensure span can shrink */
-.button-text {
-  display: block;    /* Make span a block element */
-  width: 100%;       /* Ensure it takes the full width of its parent */
-  overflow: hidden;  /* Hide any overflow content */
-  white-space: nowrap; /* Prevent text wrapping */
-}
@@ -1,109 +0,0 @@
-import { useState, useEffect } from 'react';
-import Button from '@mui/material/Button';
-import { useTheme } from '@mui/material/styles';
-import PropTypes from 'prop-types';
-import Tooltip from '@mui/material/Tooltip';
-import ChevronLeftRounded from "@mui/icons-material/ChevronLeftRounded"
-import ChevronRightRounded from '@mui/icons-material/ChevronRightRounded';
-import FileCopyIcon from '@mui/icons-material/FileCopy';
-import './SideBar.css';
-
-const Sidebar = ({ onSelection, onOpened, onClosed }) => {
-  const theme = useTheme();
-  const [isOpen, setIsOpen] = useState(false);
-  const [cannedQueries, setCannedQueries] = useState([]);
-  const Icon = isOpen ? ChevronLeftRounded : ChevronRightRounded;
-
-  const toggleIsOpen = () => {
-    if (isOpen) {
-      setIsOpen(false);
-      if (onClosed != null) {
-        onClosed();
-      }
-    } else {
-      setIsOpen(true);
-      if (onOpened != null) {
-        onOpened();
-      }
-    }
-  };
-
-  const onMenuItemClick = (event, cannedQuery) => {
-    console.info(`menu item clicked: ${cannedQuery.name}`);
-    onSelection(cannedQuery);
-  };
-
-  // const onMenuItemClick = async (event, cannedQuery) => {
-  //   try {
-  //     await navigator.clipboard.writeText(cannedQuery.query.join("\n"));
-  //     alert(`Copied ${cannedQuery.name} to clipboard`);
-  //   } catch (err) {
-  //     console.error('Failed to copy query text: ', err);
-  //   }
-  // };
-
-  useEffect(() => {
-    const fetchCannedQueries = async () => {
-      try {
-        const response = await fetch('api/cannedqueries');
-        const data = await response.json();
-        setCannedQueries(data);
-      } catch (error) {
-        console.error('Error fetching WebSocket config:', error);
-      }
-    }
-    fetchCannedQueries();
-  }, []);
-
-  const mainContentClass = `main-content ${isOpen ? 'open' : 'closed'}`;
-  const menuItemClass = `sidebar-menu-item ${isOpen ? 'open' : 'closed'}`;
-  const menuItemContentClass = `sidebar-menu-item-content ${isOpen ? 'open' : 'closed'}`;
-  const toggleButtonTitle = `${isOpen ? 'Hide' : 'Show'} Common Queries`;
-
-  return (
-    <div
-      className={"sidebar"}
-      style={{
-        display: 'flex',
-        flexDirection: 'row',
-        justifyContent: 'flexStart',
-        alignItems: 'flexStart',
-        margin: theme.spacing(2, 0, 0, 0)
-      }}
-    >
-      <div className={mainContentClass}>
-        {cannedQueries.map(cq =>
-          <Button key={cq.name} className={menuItemClass} onClick={(event) => onMenuItemClick(event, cq)}>
-            <div className={menuItemContentClass}>
-              <span className='button-text'>{cq.name}</span>
-            </div>
-          </Button>)
-        }
-        {/* {cannedQueries.map(cq =>
-          <Button
-            variant="contained"
-            color="primary"
-            startIcon={<FileCopyIcon />}
-            onClick={onMenuItemClick}
-          >
-            <div className={menuItemContentClass}>
-              <span className='button-text'>{cq.name}</span>
-            </div>
-          </Button>)} */}
-      </div>
-      <Tooltip title={toggleButtonTitle}>
-        <Button onClick={toggleIsOpen}>
-          <Icon className="w-5 h-5" />
-        </Button>
-      </Tooltip>
-    </div>
-  );
-};
-
-export default Sidebar;
-
-Sidebar.propTypes = {
-  onSelection: PropTypes.func,
-  onOpened: PropTypes.func,
-  onClosed: PropTypes.func,
-};
@@ -42,56 +42,32 @@ const getDarkPalette = () => {
      dark: '#ffffff12',
      contrastText: '#c8d4f7',
    },
-    action: {
-      hoverOpacity: 0.08
-    },
    text: {
      primary: '#eaf8f8',
      dark: '#eaf8f8a0'
    },
-    queryStartButton: {
-      Subscribed: {
+    query_start_button: {
+      active: {
        color: '#33baf9',
-        backgroundColor: '#ffffff40',
+        background_color: '#ffffff40',
      },
-      Unsubscribed: {
+      inactive: {
        color: '#ffffff40',
-        backgroundColor: '#ffffff00',
+        background_color: '#ffffff00',
      }
    },
-    queryStopButton: {
-      Subscribed: {
-        color: '#ff4444a0',
-        backgroundColor: '#ffffff40',
-      },
-      Unsubscribed: {
-        color: '#ff444450',
-        backgroundColor: '#ffffff00',
-      }
-    },
-    error: {
-      light: '#e57373',
-      main: '#f44336',
-      dark: '#d32f2f',
-      contrastText: '#fff',
-    },
    warning: {
-      light: '#ffb74d',
-      main: '#ff9800',
-      dark: '#f57c00',
-      contrastText: '#000',
+      main: '#c4823f'
    },
-    info: {
-      light: '#64b5f6',
-      main: '#2196f3',
-      dark: '#303030',
-      contrastText: '#fff',
-    },
-    success: {
-      light: '#81c784',
-      main: '#4caf50',
-      dark: '#388e3c',
-      contrastText: '#000',
+    query_stop_button: {
+      active: {
+        color: '#ff4444a0',
+        background_color: '#ffffff40',
+      },
+      inactive: {
+        color: '#ff444450',
+        background_color: '#ffffff00',
+      }
    },
  };
 };
@@ -3,5 +3,7 @@ import ReactDOM from 'react-dom/client';
 import App from './App';

 ReactDOM.createRoot(document.getElementById('root')).render(
-  <App />
+  <React.StrictMode>
+    <App />
+  </React.StrictMode>
 )
@@ -1,5 +1,5 @@
 import { fileURLToPath, URL } from 'node:url';
-import { defineConfig, loadEnv } from 'vite';
+import { defineConfig } from 'vite';
 import plugin from '@vitejs/plugin-react';
 import fs from 'fs';
 import path from 'path';
@@ -29,12 +29,13 @@ 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:5001';
+
 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: {
@@ -29,12 +29,7 @@
    <ProjectReference Include="..\..\client\spark_websocket\spark_websocket.csproj" />
  </ItemGroup>

-  <ItemGroup>
-    <ConfigurationProfile Include="appsettings.Development.json" />
-    <ConfigurationProfile Include="appsettings.Production.json" />
-    <ConfigurationProfile Include="appsettings.ProductionAws.json" />
-    <ConfigurationProfile Include="appsettings.Staging.json" />
-    <ConfigurationProfile Include="appsettings.json" />
-  </ItemGroup>
-
+  <!-- <ItemGroup>
+    <Content Update="wwwroot\alt-index.html" CopyToPublishDirectory="Never" />
+  </ItemGroup> -->
 </Project>
@@ -1,5 +0,0 @@
-namespace Bts.DataStreamWebApp.Server;
-
-public class CannedQueriesConfig {
-   public List<CannedQuery>? Items { get; set; }
-}
@@ -1,6 +0,0 @@
-namespace Bts.DataStreamWebApp.Server;
-
-public class CannedQuery {
-   public string? Name { get; set; }
-   public List<string>? Query { get; set; }
-}
@@ -5,10 +5,10 @@
  "ViewStreamDatabase": {
    "Interval": "00:00:00.1"
  },
-  "Spark": {
-    "ConfigServer": "http://172.30.2.181:8000/config"
-  },
-  "SparkApi": {
+  "Sparkd": {
+    "Config": {
+      "ConfigServer": "http://localhost:8000/config"
+    },
    "Credentials": {
      "User": "bts",
      "Password": ""
@@ -18,25 +18,38 @@
    "EnablePosition": true
  },
  "PubSub": {
+    "MillisecondsBetweenSubInfoUpdates": 1000,
+    "MillisecondsBetweenTimeSliceUpdates": 5000,
+    "MillisecondsBetweenNoBufferSpaceRetries": 100,
+    "RetriesOnNoBufferSpace": 1,
+    "DoItAllSecondsBetweenLogs": 0,
    "HeartbeatInterval": 15000,
    "MissingHeartbeatsBeforeGc": 50,
-    "ServerPort": 22019,
+    "UseManagedSockets": true,
+    "StateUpdatePeriod": 5000,
+    "StatisticsUpdatePeriod": 5000,
+    "DisposedConnectionCheckPeriod": 1000,
+    "MessageProcessingWarningThreshold": 1000,
+    "ServerPort": 12345,
    "Routing": {
      "PublisherRoutes": [
        {
          "Name": "default",
-          "ServerAddress": "bts-cloud://172.30.2.181:22019",
+          "ServerAddress": "bts-cloud://127.0.0.1:12345",
          "TagRegExp": ".*"
        }
      ],
      "SubscriberRoutes": [
        {
          "Name": "default",
-          "ServerAddress": "bts-cloud://172.30.2.181:22019",
+          "ServerAddress": "bts-cloud://127.0.0.1:12345",
          "TagRegExp": ".*"
        }
      ]
    },
+    "MaxPacketSize": 500000000,
+    "BlueCommMustDie": true,
+    "CrushableTags": [],
    "TagTypeToAssemblyMap": {
      "Entries": [
        {
@@ -45,6 +58,26 @@
        }
      ]
    },
+    "ServerQueue": "PubSubQueue",
+    "PortRange": {
+      "First": 30400,
+      "Last": 31700
+    },
+    "BindToRandomPort": false,
+    "DebugTags": "^NOTAGS$",
+    "LatencyReportThresholdMs": 1500,
+    "UseSubstations": false,
+    "UseDynamicClients": false,
+    "IsSubstation": false,
+    "InternallyPublishSubInfo": true,
+    "UseManagedClientsInNativeCode": false,
+    "CompressedTags": "^NOTAGS$",
+    "TagsToReportCompressionRatio": "^NOTAGS$",
+    "DisableMsmq": false,
+    "UsePrepublishedServerState": false,
+    "IpTranslation": null,
+    "GcActivationThreshold": 0,
+    "WaitPeriodAfterGc": 1000,
    "TagHandlerFactory": {
      "Handlers": [
        {
@@ -65,51 +98,9 @@
        {
          "TagType": ".*",
          "Assembly": "DataStreamCore",
-          "Class": "bts.PubsubServerGenericDataHandler"
+         "Class": "bts.PubsubServerGenericDataHandler"
        }
      ]
    }
-  },
-  "Kestrel": {
-    "Endpoints": {
-      "Http": {
-        "Url": "http://172.30.2.181:8080"
-      },
-      "Https": {
-        "Url": "https://172.30.2.181:8443"
-      }
-    }
-  },
-  "CannedQueries": [
-    {
-      "Name": "BBO",
-      "Query": [
-        "bbo"
-      ]
-    },
-    {
-      "Name": "Trades",
-      "Query": [
-        "timesales"
-      ]
-    },
-    {
-      "Name": "Instruments",
-      "Query": [
-        "instruments"
-      ]
-    },
-    {
-      "Name": "Books",
-      "Query": [
-        "books"
-      ]
-    },
-    {
-      "Name": "Benzinga News",
-      "Query": [
-        "benzinga_news"
-      ]
-    }
-  ]
+  }
 }
@@ -0,0 +1,4 @@
+{
+  "content_root_path": "build/Bts.DataStreamWebApp.Client/production",
+  "web_root_path": "dist"
+}
@@ -1,18 +0,0 @@
-namespace Bts.DataStreamWebApp.Server;
-
-using Microsoft.AspNetCore.Mvc;
-
-[ApiController]
-[Route("api/[controller]")]
-public class CannedQueriesController : ControllerBase {
-   readonly IConfiguration config;
-
-   public CannedQueriesController(IConfiguration config) =>
-      this.config = config;
-
-   [HttpGet(Name = "GetCannedQueries")]
-   public IEnumerable<CannedQuery>? Get() {
-      var cannedQueries = config.GetSection("CannedQueries").Get<List<CannedQuery>>()?.ToArray() ?? Array.Empty<CannedQuery>();
-      return cannedQueries;
-   }
-}
@@ -1,22 +0,0 @@
-// using Bts.DataStreamWebApp.Server;
-
-// using Microsoft.AspNetCore.Mvc;
-
-// [ApiController]
-// [Route("api/[controller]")]
-// public class ConfigController : ControllerBase {
-//    private readonly IConfiguration _configuration;
-
-//    public ConfigController(IConfiguration configuration) {
-//       _configuration = configuration;
-//    }
-
-//    [HttpGet("websocket")]
-//    public ActionResult<DataStreamWebSocketConfig> GetWebSocketConfig() {
-//       var endpoint = $"{_configuration["Kestrel:Endpoints:Http:Url"]}/ws";
-//       var webSocketConfig = new DataStreamWebSocketConfig {
-//          Endpoint = endpoint // or Https based on your setup
-//       };
-//       return Ok(webSocketConfig);
-//    }
-// }
@@ -7,7 +7,6 @@ using bts.websocket_core.json_rpc;
 using Bts.DataStreamCore;
 using Bts.DataStreamWebApp.Server.Messages;

-using System;
 using System.Net.WebSockets;
 using System.Text;
 using System.Text.Json;
@@ -97,10 +96,7 @@ class DataStreamSubscription : IDisposable, IHostedService {
         IncludeCurrent = true,
         UseObjectRows = true,
      });
-      var res = JsonRpcRequest.CreateNotification(method, new DataStreamSubscriptionUpdate() {
-         SubscriptionId = Id,
-         Table = dp
-      });
+      var res = JsonRpcRequest.CreateNotification(method, dp);
      var str = serialize(res, serializerOpts);
      if (str is null) {
         logger.LogError("Unsubscribing from stream early because we failed to serialize an outgoing DataPacket");
@@ -113,12 +109,8 @@ class DataStreamSubscription : IDisposable, IHostedService {
         dp.schema.columnNames.Length,
         str.Length);
      var bytes = Encoding.UTF8.GetBytes(str);
-      try {
-         await webSocket.SendAsync(bytes, WebSocketMessageType.Text, true, CancellationToken.None);
-         LastFired = dp;
-      } catch (WebSocketException ex) {
-         logger.LogError($"sendDataPacket failed on webSocket.SendAsync: {ex}");
-      }
+      await webSocket.SendAsync(bytes, WebSocketMessageType.Text, true, CancellationToken.None);
+      LastFired = dp;
   }

   string? serialize<T>(T message, JsonSerializerOptions? opts) {
@@ -1,13 +0,0 @@
-namespace Bts.DataStreamWebApp.Server;
-
-using BCG;
-
-using System.Text.Json.Serialization;
-
-public class DataStreamSubscriptionUpdate {
-   [JsonPropertyName("subscription_id")]
-   public string? SubscriptionId { get; set; }
-
-   [JsonPropertyName("table")]
-   public DataPacket? Table { get; set; }
-}
@@ -1,5 +0,0 @@
-namespace Bts.DataStreamWebApp.Server;
-
-public class DataStreamWebSocketConfig {
-   public string? Endpoint { get; set; }
-}
@@ -58,67 +58,40 @@ public class DataStreamWebSocketServer : IDisposable, IAsyncDisposable {
   async Task onSubscribe(JsonRpcRequest<JsonNode> req, CancellationToken cancellationToken) {
      ArgumentNullException.ThrowIfNull(req.Id);
      ArgumentException.ThrowIfNullOrEmpty(req.Method);
-      if (!SubscribeRequest.Parse(req, out var subReq, out var parseErr, out var errCode)) {
-         logger.LogError("Invalid 'subscribe' request: {Reason}", parseErr);
-         var rpcError = JsonRpcResponse.CreateError<SubscriptionError>(
-            req.Id, new() { Code = (long)errCode, Message = "Failed to parse subscription request", Data = parseErr });
-         await send(rpcError, cancellationToken);
-         return;
-      }
-      var subId = subReq.SubscriptionId ?? throw new InvalidOperationException("SubscriptionId is null (parse false)");
-      disposeSubscription(subId);
-      if (!subReq.ParseQuery(out var vs, out parseErr, out errCode)) {
-         logger.LogError("Invalid 'subscribe' request: {Reason}", parseErr);
-         var rpcError = JsonRpcResponse.CreateError<SubscriptionError>(
-            req.Id, new() { Code = (long)errCode, Message = "Failed to parse subscription request", Data = parseErr });
+      if (!SubscribeRequest.ParseQuery(req, out var vs, out var subId, out var errMsg, out var errCode)) {
+         logger.LogError("Invalid 'subscribe' request: {Reason}", errMsg);
+         var rpcError = new JsonRpcError<JsonNode>() {
+            Code = (long)errCode,
+            Message = $"{errCode}: {errMsg}",
+         };
         await send(rpcError, cancellationToken);
         return;
      }
      if (subscriptions.TryGetValue(subId, out var oldSub)) {
-         logger.LogInformation("Disposing existing subscription with id {SubscriptionId}", subId);
         oldSub.Dispose();
      }
      var sub = new DataStreamSubscription(subId, req.Id.Value, vs, webSocket, logger);
      subscriptions[subId] = sub;
      await sendSubscriptionStatus(req.Id.Value, subId, req.Method, SubscriptionStatus.Subscribed, cancellationToken);
-      vs.ErrorChanged += OnStreamError;
      await sub.StartAsync(cancellationToken);
-
-      async void OnStreamError(Exception exception) {
-         logger.LogError("Error in ViewStream (disposing subscription): {Exception}", exception);
-         subscriptions.Remove(sub.Id);
-         sub.Dispose();
-         var error = new SubscriptionError() {
-            ErrorMessage = "Error in ViewStream (disposing subscription)"
-         };
-         if (exception is not null) {
-            error.ErrorMessage += ". " + exception.Message;
-            error.StackTrace = exception.StackTrace?.Split("\n")?.ToList();
-         }
-         var rpcError = JsonRpcResponse.CreateError<SubscriptionError>(
-            req.Id, new() { Code = (long)ErrorCode.ViewStreamError, Message = "Error in ViewStream (disposing subscription)", Data = error });
-         await send(rpcError, cancellationToken);
-      }
   }

   async Task onUnsubscribe(JsonRpcRequest<UnsubscribeRequest> req, CancellationToken cancellationToken) {
      ArgumentNullException.ThrowIfNull(req.Id);
      ArgumentException.ThrowIfNullOrEmpty(req.Method);
      var subId = req.Params?.SubscriptionId ?? string.Empty;
-      if (!disposeSubscription(subId)) {
-         logger.LogInformation("Unable to dispose subscription. Subscription with id {Id} not found.", subId);
-      }
-      await sendSubscriptionStatus(req.Id.Value, subId, "unsubscribe", SubscriptionStatus.Unsubscribed, cancellationToken);
-   }
-
-   bool disposeSubscription(string subId) {
      if (!subscriptions.TryGetValue(subId, out var sub)) {
-         return false;
+         logger.LogInformation("Ignoring '{Method}' request because no subscription was found with id {Id}.", req.Method, subId);
+         return;
      }
-      logger.LogInformation("Disposing subscription with id {Id}", subId);
+      logger.LogInformation("Disposing subscription");
      sub.Dispose();
      subscriptions.Remove(subId);
-      return true;
+      await sendSubscriptionStatus(req.Id.Value, subId, req.Method, SubscriptionStatus.Unsubscribed, cancellationToken);
+   }
+
+   async Task unsubscribe(JsonRpcId requestId, string subscriptionId, CancellationToken cancellationToken) {
+      await sendSubscriptionStatus(requestId, subscriptionId, "unsubscribe", SubscriptionStatus.Unsubscribed, cancellationToken);
   }

   Task sendSubscriptionStatus(JsonRpcId reqId, string subId, string method, SubscriptionStatus status, CancellationToken cancellationToken) {
@@ -1,7 +0,0 @@
-FROM bluetradingsystems/linux_dotnet7
-
-RUN dotnet dev-certs https --trust
-COPY --chown=bts:bts "build/Release/bin/net7.0/linux-x64/publish" "bin"
-COPY --chown=bts:bts "build/Bts.DataStreamWebApp.Client/production/dist" "bin/wwwroot"
-COPY --chown=bts:bts "src/DataStreamSuite/Bts.DataStreamWebApp.Server/spark.conf" ".local/share/bts/Bts.DataStreamWebApp.Server/conf/spark.conf"
-WORKDIR "/home/bts/bin"
@@ -1,5 +0,0 @@
-namespace Bts.DataStreamWebApp.Server;
-
-public class CannedQueriesResponse {
-   public List<CannedQuery>? Items { get; set; }
-}
@@ -3,5 +3,4 @@ namespace Bts.DataStreamWebApp.Server.Messages;
 enum ErrorCode {
   None = 0,
   InvalidSubscriptionRequest,
-   ViewStreamError,
 }
@@ -18,52 +18,47 @@ public class SubscribeRequest {
   [JsonPropertyName("subscription_id")]
   public string? SubscriptionId { get; set; }

-   internal static bool Parse(JsonRpcRequest<JsonNode> req, [NotNullWhen(true)]out SubscribeRequest? subscription, [NotNullWhen(false)]out SubscriptionError? error, out ErrorCode errorCode) {
-      subscription = null;
+   internal static bool ParseQuery(JsonRpcRequest<JsonNode> req, [NotNullWhen(true)] out ViewStream? stream, [NotNullWhen(true)] out string? subscriptionId, [NotNullWhen(false)] out string? errorMessage, out ErrorCode errorCode) {
+      stream = null;
+      subscriptionId = null;
      errorCode = ErrorCode.None;
      var paramsJsonObj = req.Params?.AsObject();
-      error = null;
      if (paramsJsonObj is null) {
         errorCode = ErrorCode.InvalidSubscriptionRequest;
-         error = new() { ErrorMessage = "'params' object not found" };
+         errorMessage = "'params' object not found";
         return false;
      }
-      subscription = paramsJsonObj.Deserialize<SubscribeRequest>();
-      if (subscription is null) {
+      var subReq = paramsJsonObj.Deserialize<SubscribeRequest>();
+      if (subReq is null) {
         errorCode = ErrorCode.InvalidSubscriptionRequest;
-         error = new() { ErrorMessage = "'params' object invalid" };
+         errorMessage = "'params' object invalid";
         return false;
      }
-      return true;
-   }
-
-   internal bool ParseQuery([NotNullWhen(true)] out ViewStream? stream, [NotNullWhen(false)] out SubscriptionError? error, out ErrorCode errorCode) {
-      stream = null;
-      errorCode = ErrorCode.None;
-      error = null;
-      if (Query is null) {
+      subscriptionId = subReq.SubscriptionId ?? string.Empty;
+      var query = subReq.Query;
+      if (query is null) {
         errorCode = ErrorCode.InvalidSubscriptionRequest;
-         error = new() { ErrorMessage = "'params.query' field not found (expected a string)" };
+         errorMessage = "'params.query' field not found (expected a string)";
         return false;
      }
-      var exp = DataStreamExpressionsInterpreter.Evaluate(Query);
+      errorMessage = null;
+      var exp = DataStreamExpressionsInterpreter.Evaluate(query);
      if (exp is null) {
         errorCode = ErrorCode.InvalidSubscriptionRequest;
-         error = new() { ErrorMessage = "'params.query' expression has invalid syntax" };
+         errorMessage = "'params.query' expression has invalid syntax";
         return false;
      }
-      Exception? exception = null;
+      string? exceptionMsg = null;
      try {
         stream = exp.getView(new Dictionary<string, StatementExpression>(0));
      } catch (Exception ex) {
-         exception = ex;
+         exceptionMsg = ex.ToString();
      }
      if (stream is null) {
         errorCode = ErrorCode.InvalidSubscriptionRequest;
-         error = new() { ErrorMessage = "Failed to create ViewStream from 'params.query' expression (check for typos in arguments/typenames)" };
-         if (exception is not null) {
-            error.ErrorMessage += ". " + exception.Message;
-            error.StackTrace = exception.StackTrace?.Split("\n")?.ToList();
+         errorMessage = "Failed to create ViewStream from 'params.query' expression (check for typos in arguments/typenames)";
+         if (exceptionMsg is not null) {
+            errorMessage += ". Error" + exceptionMsg;
         }
         return false;
      }
@@ -1,11 +0,0 @@
-namespace Bts.DataStreamWebApp.Server.Messages;
-
-using System.Text.Json.Serialization;
-
-public class SubscriptionError {
-   [JsonPropertyName("error_message")]
-   public string? ErrorMessage { get; set; }
-
-   [JsonPropertyName("stack_trace")]
-   public List<string>? StackTrace { get; set; }
-}
@@ -1,82 +1,59 @@
-using Bts.DataStreamCore.Services;
-using Bts.PubSub.Services;
-
-using Spark.Api.Services;
-using Spark.Core.Services;
-
-using System.Reactive.Linq;
-using System.Reflection;
-
-var builder = WebApplication.CreateBuilder(new WebApplicationOptions {
-   Args = args,
-   ApplicationName = "Bts.DataStreamWebApp.Server",
-});
-ConfigureApp(builder.Configuration, builder.Environment.EnvironmentName);
-ConfigureServices(builder.Services, builder.Configuration);
-
-var app = builder.Build();
-var wsOpts = new WebSocketOptions {
-   KeepAliveInterval = TimeSpan.FromMinutes(2)
-};
-if (app.Environment.IsDevelopment()) {
-   app.UseDirectoryBrowser("/browse");
-   app.UseSwagger();
-   app.UseSwaggerUI();
-}
-app.UseHttpsRedirection();
-app.UseWebSockets(wsOpts);
-app.UseDefaultFiles();
-app.UseStaticFiles();
-app.UseAuthorization();
-app.MapControllers();
-try {
-   Console.Write($"Starting Application");
-   app.Run();
-   Console.Write($"Application exited gracefully.");
-} catch (Exception ex) {
-   Console.Error.Write($"Application crashed: {ex}");
-   return 1;
-}
-return 0;
-
-static void ConfigureApp(ConfigurationManager configBuilder, string environment) {
-   // We prefix appsettings with the exe name because multiple exes will usually be in the build dir
-   // (this way, each exe can still load its own appsettings files from the current directory).
-   var exeName = Assembly.GetCallingAssembly().GetName().Name;
-   AddJsonFile($"{exeName}.appsettings.json");
-   AddJsonFile($"{exeName}.appsettings.{environment}.json");
-
-   var cfg = configBuilder.GetSection("config")?.Value;
-   if (!SetBasePath(cfg)) {
-      AddJsonFile(cfg);
-   }
-
-   bool SetBasePath(string? path) {
-      if (!Directory.Exists(path)) {
-         return false;
-      }
-      configBuilder.SetBasePath(path);
-      return true;
-   }
-
-   bool AddJsonFile(string? path) {
-      if (!File.Exists(path)) {
-         return false;
-      }
-      configBuilder.AddJsonFile(path);
-      return true;
-   }
-}
-
-static void ConfigureServices(IServiceCollection services, IConfiguration config) {
-   services.AddDirectoryBrowser()
-      .AddControllers().Services
-      .AddEndpointsApiExplorer()
-      .AddSwaggerGen();
-   services.AddSpaStaticFiles();
-   services.AddSpark(config.GetSection("Spark"))
-      .AddSparkApi(config.GetSection("SparkApi"))
-      .AddMasterWorker(config.GetSection("MasterWorker"))
-      .AddViewStreamDatabase()
-      .AddPubSubClient(config.GetSection("PubSub"));
-}
+using Bts.DataStreamCore.Services;
+using Bts.PubSub.Services;
+
+using Spark.Api.Services;
+
+using System.Reactive.Linq;
+
+var builder = WebApplication.CreateBuilder(new WebApplicationOptions {
+   Args = args,
+   ApplicationName = "Bts.DataStreamWebApp.Server",
+});
+ConfigureApp(builder.Configuration);
+ConfigureServices(builder.Services, builder.Configuration);
+
+var app = builder.Build();
+if (app.Environment.IsDevelopment()) {
+   app.UseDirectoryBrowser();
+}
+var wsOpts = new WebSocketOptions {
+   KeepAliveInterval = TimeSpan.FromMinutes(2)
+};
+app.UseWebSockets(wsOpts);
+app.UseDefaultFiles();
+app.UseStaticFiles();
+if (app.Environment.IsDevelopment()) {
+   app.UseSwagger();
+   app.UseSwaggerUI();
+}
+app.UseHttpsRedirection();
+app.UseAuthorization();
+app.MapControllers();
+try {
+   Console.Write($"Starting Application");
+   app.Run();
+   Console.Write($"Application exited gracefully.");
+} catch (Exception ex) {
+   Console.Error.Write($"Application crashed: {ex}");
+   return 1;
+}
+return 0;
+
+static void ConfigureApp(ConfigurationManager configBuilder) {
+   configBuilder.AddCommandLine(Environment.GetCommandLineArgs());
+   var cfgRoot = configBuilder.GetSection("config");
+   if (cfgRoot?.Value is not null) {
+      configBuilder.AddJsonFile(cfgRoot.Value);
+   }
+}
+
+static void ConfigureServices(IServiceCollection services, IConfiguration config) {
+   services.AddDirectoryBrowser();
+   services.AddControllers();
+   services.AddEndpointsApiExplorer();
+   services.AddSwaggerGen();
+   services.AddMasterWorker(config.GetSection("MasterWorker"));
+   services.AddViewStreamDatabase(config.GetSection("ViewStreamDatabase"));
+   services.AddPubSubClient(config.GetSection("PubSub"));
+   services.AddSparkd(config.GetSection("Sparkd"));
+}
@@ -6,9 +6,8 @@
      "dotnetRunMessages": true,
      "launchBrowser": true,
      "launchUrl": "swagger",
-      "applicationUrl": "http://localhost:8080",
+      "applicationUrl": "http://localhost:5000",
      "environmentVariables": {
-        "ASPNETCORE_HTTP_PORT": "8080",
        "ASPNETCORE_ENVIRONMENT": "Development",
        "ASPNETCORE_HOSTINGSTARTUPASSEMBLIES": "Microsoft.AspNetCore.SpaProxy",
      }
@@ -17,10 +16,8 @@
      "commandName": "Project",
      "dotnetRunMessages": true,
      "launchBrowser": true,
-      "applicationUrl": "http://localhost:8080;https://localhost:8443",
+      "applicationUrl": "http://localhost:5000;https://localhost:5001",
      "environmentVariables": {
-        "ASPNETCORE_HTTP_PORT": "8080",
-        "ASPNETCORE_HTTPS_PORT": "8443",
        "ASPNETCORE_ENVIRONMENT": "Development",
        "ASPNETCORE_HOSTINGSTARTUPASSEMBLIES": "Microsoft.AspNetCore.SpaProxy",
      }
@@ -1,62 +0,0 @@
-{
-  "Kestrel": {
-    "Endpoints": {
-      "Http": {
-        "Url": "http://localhost:8080"
-      },
-      "Https": {
-        "Url": "https://localhost:8443"
-      }
-    }
-  },
-  "PubSub": {
-    "Routing": {
-      "PublisherRoutes": [
-        {
-          "Name": "default",
-          "ServerAddress": "bts-cloud://localhost:22019",
-          "TagRegExp": ".*"
-        }
-      ],
-      "SubscriberRoutes": [
-        {
-          "Name": "default",
-          "ServerAddress": "bts-cloud://localhost:22019",
-          "TagRegExp": ".*"
-        }
-      ]
-    }
-  },
-  "CannedQueries": [
-    {
-      "Name": "BBO",
-      "Query": [
-        "bbo"
-      ]
-    },
-    {
-      "Name": "Trades",
-      "Query": [
-        "timesales"
-      ]
-    },
-    {
-      "Name": "Instruments",
-      "Query": [
-        "instruments"
-      ]
-    },
-    {
-      "Name": "Books",
-      "Query": [
-        "books"
-      ]
-    },
-    {
-      "Name": "Benzinga News",
-      "Query": [
-        "benzinga_news"
-      ]
-    }
-  ]
-}
@@ -1,8 +0,0 @@
-{
-  "Spark": {
-    "ConfigServer": "http://sparkd:8000/config"
-  },
-  "SparkApi": {
-    "IsEnabled": true
-  }
-}
@@ -1,34 +0,0 @@
-{
-  "CannedQueries": [
-    {
-      "Name": "BBO",
-      "Query": [
-        "bbo"
-      ]
-    },
-    {
-      "Name": "Trades",
-      "Query": [
-        "timesales"
-      ]
-    },
-    {
-      "Name": "Instruments",
-      "Query": [
-        "instruments"
-      ]
-    },
-    {
-      "Name": "Books",
-      "Query": [
-        "books"
-      ]
-    },
-    {
-      "Name": "Benzinga News",
-      "Query": [
-        "benzinga_news"
-      ]
-    }
-  ]
-}
@@ -5,81 +5,5 @@
      "Microsoft.AspNetCore": "Warning"
    }
  },
-  "AllowedHosts": "*",
-  "Kestrel": {
-    "Endpoints": {
-      "Http": {
-        "Url": "http://0.0.0.0:8080"
-      },
-      "Https": {
-        "Url": "https://0.0.0.0:8443"
-      }
-    }
-  },
-  "MasterWorker": {
-    "Interval": "00:00:00.1"
-  },
-  "ViewStreamDatabase": {
-    "Interval": "00:00:00.1"
-  },
-  "SparkApi": {
-    "IsEnabled": false,
-    "Credentials": {
-      "User": "bts",
-      "Password": ""
-    }
-  },
-  "PubSub": {
-    "HeartbeatInterval": 15000,
-    "MissingHeartbeatsBeforeGc": 50,
-    "ServerPort": 22019,
-    "Routing": {
-      "PublisherRoutes": [
-        {
-          "Name": "default",
-          "ServerAddress": "bts-cloud://pubsub:22019",
-          "TagRegExp": ".*"
-        }
-      ],
-      "SubscriberRoutes": [
-        {
-          "Name": "default",
-          "ServerAddress": "bts-cloud://pubsub:22019",
-          "TagRegExp": ".*"
-        }
-      ]
-    },
-    "TagTypeToAssemblyMap": {
-      "Entries": [
-        {
-          "HandlerClass": "BCG.PubSubServerTagHandler",
-          "Assembly": "DataStreamCore.dll"
-        }
-      ]
-    },
-    "TagHandlerFactory": {
-      "Handlers": [
-        {
-          "TagType": "DataStream",
-          "Assembly": "DataStreamCore",
-          "Class": "bts.PubsubServerStreamTagHandler"
-        },
-        {
-          "TagType": "System_Sub",
-          "Assembly": "PubSub",
-          "Class": "BCG.SystemSubscriptionMapPublisher"
-        },
-        {
-          "TagType": "System_Stats",
-          "Assembly": "PubSub",
-          "Class": "BCG.SystemStatsPublisher"
-        },
-        {
-          "TagType": ".*",
-          "Assembly": "DataStreamCore",
-         "Class": "bts.PubsubServerGenericDataHandler"
-        }
-      ]
-    }
-  }
+  "AllowedHosts": "*"
 }
@@ -1,6 +0,0 @@
-FROM bluetradingsystems/linux_dotnet7
-
-RUN dotnet dev-certs https --trust
-COPY --chown=bts:bts "bin" "bin"
-COPY --chown=bts:bts "webapp.spark.conf" ".local/share/DataStream/conf/spark.conf"
-WORKDIR "/home/bts/bin"
@@ -1,15 +0,0 @@
-Logging {
-  value {
-    console {
-      default_level: "Info"
-    }
-    syslog {
-      default_level: "Info"
-    }
-    file {
-      default_level: "Info"
-    }
-    initial_queue_size: 120001
-    max_queue_growth: 4
-  }
-}
@@ -1,13 +0,0 @@
-<Project Sdk="Microsoft.NET.Sdk">
-
-  <PropertyGroup>
-    <TargetFramework>net7.0</TargetFramework>
-    <ImplicitUsings>enable</ImplicitUsings>
-    <Nullable>enable</Nullable>
-  </PropertyGroup>
-
-  <ItemGroup>
-    <PackageReference Include="Microsoft.Extensions.Hosting" Version="7.0.1" />
-  </ItemGroup>
-
-</Project>
@@ -1,59 +0,0 @@
-namespace Bts.Extensions.Hosting;
-
-using Microsoft.Extensions.Configuration;
-using Microsoft.Extensions.Hosting;
-
-using System.Diagnostics;
-
-public static class HostBuilderExtensions {
-   public static IHostBuilder CreateBtsBuilder(string[] args) {
-      // Obtain calling assembly name here, rather than in the lambda where it is actually needed,
-      // because want the name of the assembly that called this function, not the assembly that will eventually invoke
-      // the lambda...that will be the Microsoft.Extensions.Hosting assembly.
-      // Get the name of the assembly that called this function. That will act as the "appsettings"
-      // json file prefix
-      var exeName = GetCallingAssemblyName();
-      return Host.CreateDefaultBuilder(args)
-         .ConfigureAppConfiguration((context, configBuilder) =>
-            ConfigureApp(configBuilder, context.HostingEnvironment.EnvironmentName, exeName));
-   }
-
-   public static void ConfigureApp(IConfigurationBuilder configBuilder, string? environment = null, string? prefix = null) {
-      var baseFileName = prefix is null ? "appsettings" : $"{prefix}.appsettings";
-      AddJsonFile($"{baseFileName}.json");
-      if (environment is not null) {
-         AddJsonFile($"{baseFileName}.{environment}.json");
-      }
-
-      var cfg = configBuilder.Build().GetSection("config")?.Value;
-      if (!SetBasePath(cfg)) {
-         AddJsonFile(cfg);
-      }
-
-      bool SetBasePath(string? path) {
-         if (!Directory.Exists(path)) {
-            return false;
-         }
-         configBuilder.SetBasePath(path);
-         return true;
-      }
-
-      bool AddJsonFile(string? path) {
-         if (!File.Exists(path)) {
-            return false;
-         }
-         configBuilder.AddJsonFile(path);
-         return true;
-      }
-   }
-
-   public static string GetCallingAssemblyName() =>
-      new StackTrace()
-         .GetFrame(2)
-         ?.GetMethod()
-         ?.Module
-         ?.Assembly
-         ?.GetName()
-         ?.Name
-         ?? throw new InvalidOperationException("Failed to determine name of calling assembly (calling method is null)");
-}
@@ -1,9 +0,0 @@
-<Project Sdk="Microsoft.NET.Sdk">
-
-  <PropertyGroup>
-    <TargetFramework>net7.0</TargetFramework>
-    <ImplicitUsings>enable</ImplicitUsings>
-    <Nullable>enable</Nullable>
-  </PropertyGroup>
-
-</Project>
@@ -1,28 +0,0 @@
-namespace Bts.Net;
-
-using System.Linq;
-using System.Net;
-
-/// <summary>
-/// Provides facilities to compare hosts for equality.
-/// <para>
-/// This class doesn't implement IEqualityComparer because a consistent hash code cannot be
-/// guarenteed for equivalent host strings. The equals impl relies on Dns.GetHostAddresses, which
-/// is non-determinstic (implementations that depends on mutable properties face a similar problem).
-/// </para>
-/// </summary>
-public class HostComparer {
-   public static bool Equals(string? x, string? y) {
-      if (x is null) {
-         return y is null;
-      }
-      if (y is null) {
-         return false;
-      }
-      return Dns.GetHostAddresses(x).Intersect(
-         Dns.GetHostAddresses(y), IpAddressComparer.Instance).Any();
-   }
-
-   public static bool Equals(IPHostEntry x, IPHostEntry y) =>
-      x.AddressList.Intersect(y.AddressList, IpAddressComparer.Instance).Any();
-}
@@ -1,30 +0,0 @@
-namespace Bts.Net;
-
-using System.Diagnostics.CodeAnalysis;
-using System.Net;
-
-/// <summary>
-/// Compares ip addresses. Unlike the default comparer, v4 and equivalent v6 addresses are
-/// considered equal.
-/// </summary>
-public class IpAddressComparer : IEqualityComparer<IPAddress> {
-   public static IEqualityComparer<IPAddress> Instance { get; } = new IpAddressComparer();
-
-   public bool Equals(IPAddress? x, IPAddress? y) {
-      if (x is null) {
-         return y is null;
-      }
-      if (y is null) {
-         return false;
-      }
-      return x.Equals(y) ||
-         (x.IsIPv4MappedToIPv6 && x.MapToIPv4().Equals(y)) ||
-         (y.IsIPv4MappedToIPv6 && y.MapToIPv4().Equals(x));
-   }
-
-   public int GetHashCode([DisallowNull] IPAddress address) =>
-      address.IsIPv4MappedToIPv6
-         // Return consistent hash code for v4 and equivalent v6
-         ? address.MapToIPv4().GetHashCode()
-         : address.GetHashCode();
-}
@@ -1,33 +0,0 @@
-namespace Bts.Net;
-
-using System;
-using System.Net;
-using System.Text.Json;
-using System.Text.Json.Serialization;
-
-public class IpHostEntryJsonConverter : JsonConverter<IPHostEntry> {
-   public override IPHostEntry? Read(ref Utf8JsonReader reader, Type typeToConvert, JsonSerializerOptions options) {
-      throw new NotImplementedException();
-   }
-
-   public override void Write(Utf8JsonWriter writer, IPHostEntry value, JsonSerializerOptions options) {
-      writer.WriteStartObject();
-      // HostName
-      writer.WriteString(nameof(value.HostName), value.HostName);
-      // Aliases
-      writer.WritePropertyName("Aliases");
-      writer.WriteStartArray();
-      foreach (var alias in value.Aliases) {
-         writer.WriteStringValue(alias);
-      }
-      writer.WriteEndArray();
-      // Addresses
-      writer.WritePropertyName("Addresses");
-      writer.WriteStartArray();
-      foreach (var address in value.AddressList) {
-         writer.WriteStringValue(address.ToString());
-      }
-      writer.WriteEndArray();
-      writer.WriteEndObject();
-   }
-}
@@ -1,39 +0,0 @@
-namespace Bts.Net;
-
-using System;
-using System.IO;
-using System.Net;
-using System.Text;
-using System.Text.Json;
-
-/// <summary>
-/// This class seriailzes IpHostEntry to json (string). A common buffer is used to reduce memory
-/// allocations on repeated calls to <see cref="Serialize"/>. For that reason, this class is NOT
-/// thread safe.
-/// </summary>
-public class IpHostEntryJsonSerializer {
-   readonly MemoryStream buffer = new();
-   readonly IpHostEntryJsonConverter converter;
-
-   public IpHostEntryJsonSerializer(IpHostEntryJsonConverter? converter = null) =>
-      this.converter = converter ?? new() { };
-
-   public string? Serialize(IPHostEntry dp, JsonSerializerOptions? opts = null) {
-      opts ??= JsonSerializerOptions.Default;
-      buffer.Position = 0;
-      buffer.SetLength(0);
-      using (var jsonWriter = new Utf8JsonWriter(buffer)) {
-         converter.Write(jsonWriter, dp, opts);
-      }
-      var bytes = buffer.GetBuffer();
-      var span = new ArraySegment<byte>(bytes, 0, (int)buffer.Length);
-      return Encoding.UTF8.GetString(span);
-   }
-
-   public void Serialize(IPHostEntry dp, Utf8JsonWriter jsonWriter, JsonSerializerOptions? opts = null) {
-      opts ??= JsonSerializerOptions.Default;
-      buffer.Position = 0;
-      buffer.SetLength(0);
-      converter.Write(jsonWriter, dp, opts);
-   }
-}
@@ -1,94 +0,0 @@
-namespace Bts.Net;
-
-using System.Diagnostics.CodeAnalysis;
-using System.Net;
-using System.Text.RegularExpressions;
-
-public static partial class IpUtils {
-   static readonly Regex ipv4Regex = new(string.Join('.', @"(((0|1)\d)|(2\d)|\d)?\d"));
-
-   // public static void ParseUri(string str, out string? scheme, out string? host, out string? port, out string? path, out string? queryParams) {
-   //    if (Uri.TryCreate(str, UriKind.Absolute, out var uri)) {
-   //    }
-   // }
-
-   // public static bool AreEndpointsEqual(Uri? x, Uri? y) {
-   //    if (x is null) {
-   //       return y is null;
-   //    }
-   //    if (y is null) {
-   //       return false;
-   //    }
-   //    if (x.IsAbsoluteUri != y.IsAbsoluteUri) {
-   //       return false;
-   //    }
-   //    if (x.IsAbsoluteUri) {
-   //       if (x.Scheme != y.Scheme) {
-   //          return false;
-   //       }
-   //    }
-   //    string? xHost = null;
-   // }
-
-   // static string ResolveHostIpv4(Uri uri) {
-   //    // switch (uri.HostNameType) {
-   //    //    case UriHostNameType.IPv4:
-   //    //       return uri.Host;
-   //    //    case UriHostNameType.Dns:
-   //    //       break;
-   //    //    case UriHostNameType.IPv6:
-   //    //       var addresses = Dns.GetHostAddresses(uri.Host);
-   //    //       foreach (var address in addresses) {
-   //    //          if (address.IsIPv4MappedToIPv6) {
-   //    //             return address.MapToIPv4().Address;
-   //    //          }
-   //    //       }
-   //    //       break;
-   //    // }
-   //    var hostAddresses = Dns.GetHostAddresses(uri.Host);
-   //    foreach (IPAddress address in hostAddresses) {
-   //       if (address.Equals(remoteEndPoint.Address) ||
-   //           (address.IsIPv4MappedToIPv6 && address.MapToIPv4().Equals(remoteEndPoint.Address)) ||
-   //           (remoteEndPoint.Address.IsIPv4MappedToIPv6 && remoteEndPoint.Address.MapToIPv4().Equals(address))) {
-   //          isMatch = true;
-   //          break;
-   //       }
-   //    }
-   // }
-
-   // public static bool AreEndpointsEqual(string? x, string? y) {
-   //    if (x == y) {
-   //       return true;
-   //    }
-   //    if (x is null) {
-   //       return y is null;
-   //    }
-   //    if (y is null) {
-   //       return false;
-   //    }
-   //    var xUri = new Uri(x);
-   //    var yUri = new Uri(y);
-   //    // return xUri.Equals(yUri);
-   // }
-
-   public static bool IsIpv4(string host) {
-      host = removeSchemaFromUrl(host);
-      host = removePortFromUrl(host);
-      return ipv4Regex.IsMatch(host);
-   }
-
-   static string removeSchemaFromUrl(string url) {
-      var i = url.IndexOf("://");
-      return i < 0 ? url : url.Substring(i + 3);
-   }
-
-   static string removePortFromUrl(string url) {
-      var match = MyRegex().Match(url);
-      return match.Success
-         ? string.Concat(url.AsSpan(0, match.Index), url.AsSpan(match.Index + match.Length))
-         : url;
-   }
-
-   [GeneratedRegex(":\\d{1,4}")]
-   private static partial Regex MyRegex();
-}
@@ -7,11 +7,14 @@
  </PropertyGroup>

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

  <ItemGroup>
+    <ProjectReference Include="..\DataStreamCore\DataStreamCore.csproj" />
    <ProjectReference Include="..\ExpressionCore\ExpressionCore.csproj" />
+    <ProjectReference Include="..\..\client\spark_core\spark_core.csproj" />
  </ItemGroup>

  <ItemGroup Label="ColumnMapExpression">
@@ -1,24 +1,16 @@
-using Bts.DataStream;
-using Bts.DataStreamCore;
-using Bts.DataStreamExpressions;
-using Bts.PubSub;
-
-using bts;
-
-using Microsoft.Extensions.Hosting;
-
-using Spark.Core.Disposables;
-
 using System;
 using System.Collections.Generic;
-using System.Reactive.Linq;
-using System.Threading;
-using System.Threading.Tasks;
+
+using Bts.DataStreamExpressions;
+using BCG.Utilities.General;
+using bts;
+using Bts.PubSub;
+using Bts.DataStreamCore;

 namespace BCG {
   // listens to the requests posted on "cloud_streams" request table, and 
   // if unfulfilled starts a ViewPubsliher
-   public class RemoteQueryManager : IHostedService {
+   public class RemoteQueryManager : IWorker {
      public class StreamPubUnit {
         public string name;
         public string stream_expression;
@@ -49,46 +41,25 @@ namespace BCG {
      }
      private IDictionary<string, StreamPubUnit>
         _stream_pub_map = new Dictionary<string, StreamPubUnit>();
+      private ViewStream _stream = new TableStream("cloud_streams");
      readonly IPubTableBroker _broker;
      readonly IManagedSubscriber _sub;
-      readonly object syncRoot = new();
-      IDisposable? cloudStreamsSub;
-      IDisposable? remoteRequestsSub;
-      bool isDisposed;


      public RemoteQueryManager(IManagedSubscriber managedSubscriber, IPubTableBroker pubTableBroker) {
         _sub = managedSubscriber;
         _broker = pubTableBroker;
+         _stream.onChange += _on_str;
+         _sub.Subscribe("RemoteRequest", (string tag, byte[] data) => {
+            RemoteRequest req = RemoteRequest.construct_from_bytes(data);
+            _spawn_remote_stream(req.published_table_name, req.stream_expression, false);
+         });
      }
-
-      public Task StartAsync(CancellationToken cancellationToken) {
-         lock (syncRoot) {
-            Log.assert(!isDisposed);
-            Log.isnull(cloudStreamsSub);
-            Log.isnull(remoteRequestsSub);
-            cloudStreamsSub = new TableStream("cloud_streams").AsObservable().Subscribe(_on_str);
-            remoteRequestsSub = _sub.Observe("RemoteRequest").Subscribe(data => {
-               RemoteRequest req = RemoteRequest.construct_from_bytes(data);
-               _spawn_remote_stream(req.published_table_name, req.stream_expression, false);
-            });
-         }
-         return Task.CompletedTask;
-      }
-
-      public Task StopAsync(CancellationToken cancellationToken) {
-         lock (syncRoot) {
-            if (!isDisposed) {
-               isDisposed = true;
-               Disposable.dispose(ref cloudStreamsSub);
-               Disposable.dispose(ref remoteRequestsSub);
-            }
-         }
-         return Task.CompletedTask;
-      }
-
-      private void _on_str(DataPacket dp)
+      private void _on_str(object obj)
      {
+         if (obj is not DataPacket dp) {
+            return;
+         }
         foreach (IBlueRow r in dp.newRows)
         {
            string name = r.get<string>("name");
@@ -115,5 +86,9 @@ namespace BCG {
      private void _expose_to_ws(string name, ViewStream stream) {
         // TODO: john
      }
+
+      public void doWork() {
+
+      }
   }
 }
@@ -1,24 +1,23 @@
-using bts;
-
 using System;
 using System.Collections;

-namespace BCG {
+namespace BCG
+{
 	/// <summary>
 	/// Provides a stream that with distinct rows with respect to the columns
 	/// the user specifies in the argument
 	/// </summary>
-	[DataStreamUserRespresentation("distinct")]
-	public class DistinctRowStream : ViewStream {
-		public DistinctRowStream(ViewStream stream, params string[] cols) {
-			var g_by_eval = new DistinctRowEvaluator(cols);
-			ViewStream r = new GroupByStream(stream, g_by_eval);
-			var proj_exp = String.Empty;
-			foreach (var c in cols)
-				proj_exp += $"{c} ";
-			proj_exp = proj_exp.Trim();
-			r = new NewProjectStream(r, proj_exp);
-			mySetRealSource(r);
+	[DataStreamUserRespresentation ("distinct")]
+	public class DistinctRowStream : ViewStream
+	{
+		public DistinctRowStream (ViewStream stream, params string[] cols)
+		{
+         ArrayList groupByCols = new ArrayList ();
+         foreach (string col in cols)
+            foreach (string c in col.Split (' '))
+               groupByCols.Add (c);
+         mySetRealSource (new GroupByStream (stream, 
+            new DistinctRowEvaluator (groupByCols.ToArray (typeof(string)) as string[]), false));
 		}
 	}
 }
@@ -1,7 +1,4 @@
-using bts;
-
 using Bts.DataStream;
-using Bts.DataStream.Primitives.Filter;

 using mbts.config;

@@ -29,7 +26,6 @@ namespace BCG.StreamWorld.Addition
      {
         myBaseStream = vs;
         myFilter = filter;
-         vs.ErrorChanged += OnError;
         if (filter is IDynamicStreamFilter)
            (filter as IDynamicStreamFilter).onFilterChange += new FilterChangeDelegate(myHandleFilterChange);
      }
@@ -47,50 +43,37 @@ namespace BCG.StreamWorld.Addition
         myStateTable.clear();
      }

-      bool filterRow(IBlueRow r) {
-         try {
-            return myFilter.filter(r);
-         } catch (Exception ex) {
-            Log.Gen.error($"FilterStream delegate threw exception: {ex}");
-            OnError(new StreamFilterException(StreamId, StreamName, null, ex, r));
-         }
-         return false;
-      }
-
      private void myHandleChanges(object newValue)
      {
-         try {
-            DataPacket dp = newValue as DataPacket;
-            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)
-            {
-               myBaseTable.deleteRow(r);
-               if (myStateTable.containsID((int)r["id"]))
-               {
-                  dels.addRow(r);
-                  myStateTable.deleteRow(r);
-               }
-            }
-            foreach (IBlueRow r in dp.addedRows) {
-               myBaseTable.addRow(r);
-               if (filterRow(r)) {
-                  adds.addRow(r);
-                  myStateTable.addRow(r);
-               }
-            }
-            if ((dels.Count > 0 || adds.Count > 0) || (myLastValue == null)) {
-               myFireEvent(new DataPacket(myStateTable, adds, dels));
-            }
-         } catch (Exception ex) {
-            OnError(ex);
+         DataPacket dp = newValue as DataPacket;
+         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)
+         {
+            myBaseTable.deleteRow(r);
+            if (myStateTable.containsID((int)r["id"]))
+            {
+               dels.addRow(r);
+               myStateTable.deleteRow(r);
+            }
+         }
+         foreach (IBlueRow r in dp.addedRows)
+         {
+            myBaseTable.addRow(r);
+            if (myFilter.filter(r))
+            {
+               adds.addRow(r);
+               myStateTable.addRow(r);
+            }
+         }
+         if ((dels.Count > 0 || adds.Count > 0) || (myLastValue == null))
+            myFireEvent(new DataPacket(myStateTable, adds, dels));
      }

      public IStreamFilter filter
@@ -102,20 +85,9 @@ namespace BCG.StreamWorld.Addition
            {
               IBlueRowCollection oldState = new BlueTable(myStateTable);
               myStateTable.clear();
-               // If the filter throws an exception, we can rethrow it as a StreamFilterException
-               // and include the 'currentRow' (for which the filter failed) to provide context.
-               IBlueRow? currentRow = null;
-               foreach (IBlueRow r in myBaseTable) {
-                  try {
-                     currentRow = r;
-                     if (filterRow(r)) {
-                        myStateTable.addRow(r);
-                     }
-                  } catch (Exception ex) {
-                     Log.Gen.error($"FilterStream delegate threw exception: {ex}");
-                     OnError(new StreamFilterException(StreamId, StreamName, null, ex, currentRow));
-                  }
-               }
+               foreach (IBlueRow r in myBaseTable)
+                  if (myFilter.filter(r))
+                     myStateTable.addRow(r);
               IBlueRowCollection dels, adds;
               BlueDataUtility.computeDifferences(myStateTable, oldState, out dels, out adds);
               myFireEvent(new DataPacket(myStateTable, adds, dels));
@@ -245,37 +217,37 @@ 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) {
-               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);
-                  }
+         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 (filterRow(r)) {
-                     myLastFiredRows.addRow(r);
-                     (retVal.addedRows 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 (filterRow(r))
-                     myLastFiredRows.addRow(r);
-            }
-            myFireEvent(retVal);
-         } catch (Exception ex) {
-            OnError(ex);
         }
+         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
@@ -291,23 +263,18 @@ namespace BCG
               myFilter = value;
               if (numberOfSubscribers > 0)
               {
-                  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));
-                     } catch (Exception ex) {
-                        OnError(ex);
-                     }
-                  }
+                   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));
+                   }
               }
            }
         }
@@ -331,13 +298,5 @@ namespace BCG
      {
         filter = myFilter;
      }
-
-      bool filterRow(IBlueRow r) {
-         try {
-            return myFilter.filter(r);
-         } catch (Exception ex) {
-            throw new StreamFilterException(StreamId, StreamName, null, ex, r);
-         }
-      }
   }
 }
@@ -1,19 +0,0 @@
-#nullable enable
-namespace Bts.DataStream.Primitives.Filter;
-
-using BCG;
-
-using System;
-
-public class StreamFilterException : Exception {
-   public StreamFilterException(Guid streamId, string streamName, string? message, Exception? innerException, IBlueRow? badRow = null)
-      : base(message, innerException) {
-      StreamId = streamId;
-      StreamName = streamName;
-      BadRow = badRow;
-   }
-
-   public Guid StreamId { get; }
-   public string StreamName { get; }
-   public IBlueRow? BadRow { get; }
-}
@@ -90,7 +90,7 @@ namespace BCG {

         if (now > myNextFilter) {
            // fire event
-            onFilterChange?.Invoke();
+            onFilterChange();

            myNextFilter = now.Add(myFilterFrequency);
         }
@@ -43,10 +43,6 @@ namespace BCG
         _timer.Restart();
         IBlueRowCollection total_state = _groupby_func.evaluate(grouped_rows);
         _timer.Stop();
-         if (total_state is null) {
-            Log.Gen.warn("NonIncGroupByStream _groupby_func.evaluate returned null (ignoring last update).");
-            return;
-         }
         var applyElapsedMs = _timer.ElapsedMilliseconds;
         _n_total_fires++;         
         if (applyElapsedMs >= 50)
@@ -8,33 +8,26 @@ using System;
 using System.IO;
 using System.Linq;

-namespace bts
-{
-    public class PubSubTestingStream : ViewStream, IWorker
-    {
-        public class PayloadMessage
-        {
+namespace bts {
+    public class PubSubTestingStream : ViewStream, IWorker {
+        public class PayloadMessage {
            public int msg_id = 0;
            public string guid;
            public Int64 travel_epoch_ms = 0;
            public byte[] payload = null;
-            public PayloadMessage(int msg_id_args, Int64 send_epoch_args, int payload_size, byte payload_byte)
-            {
+            public PayloadMessage(int msg_id_args, Int64 send_epoch_args, int payload_size, byte payload_byte) {
                msg_id = msg_id_args;
                travel_epoch_ms = send_epoch_args;
                payload = new byte[payload_size];
-                for (int i = 0; i < payload_size; i++)
-                {
+                for (int i = 0; i < payload_size; i++) {
                    payload[i] = payload_byte;
                }
            }
            private PayloadMessage() { }
            public PayloadMessage(int msg_id, int payload_size, byte payload_byte) :
-            this(msg_id, PubSubTestingStream.epoch_now(), payload_size, payload_byte)
-            { }
+            this(msg_id, PubSubTestingStream.epoch_now(), payload_size, payload_byte) { }

-            public byte[] serialize()
-            {
+            public byte[] serialize() {
                var str = new MemoryStream();
                BinaryWriter bw = new BinaryWriter(str);
                bw.Write(msg_id);
@@ -47,8 +40,7 @@ namespace bts
                return bytes;
            }

-            public static PayloadMessage deserialize(byte[] ser_bytes)
-            {
+            public static PayloadMessage deserialize(byte[] ser_bytes) {
                var str = new MemoryStream(ser_bytes);
                BinaryReader br = new BinaryReader(str);
                int msg_id = br.ReadInt32();
@@ -56,8 +48,7 @@ namespace bts
                Int64 epoch = br.ReadInt64();
                int len = br.ReadInt32();
                var payload = br.ReadBytes(len);
-                return new PayloadMessage()
-                {
+                return new PayloadMessage() {
                    msg_id = msg_id,
                    guid = guid,
                    travel_epoch_ms = epoch,
@@ -82,8 +73,7 @@ namespace bts
        private readonly int _payload_sz;
        private const byte _payload_byte = (byte)'A';
        private readonly string _tag_name;
-        public PubSubTestingStream(int publish_period_msecs, int max_pubs, int payload_size, string tag_name, ViewStreamDatabase vsd)
-        {
+        public PubSubTestingStream(int publish_period_msecs, int max_pubs, int payload_size, string tag_name, ViewStreamDatabase vsd) {
            _vsd = vsd;
            _payload_sz = payload_size;
            var schema = BlueDataUtility.form_schema("PubSubTest",
@@ -106,53 +96,43 @@ namespace bts
        public PubSubTestingStream(int publish_period_seconds, int max_pubs, int msg_size, string tag_name)
        : this(publish_period_seconds, max_pubs, msg_size, tag_name, ViewStreamDatabase.instance) { }

-        protected override void myOnFirstSubscriber()
-        {
+        protected override void myOnFirstSubscriber() {
            _vsd.addWorker(this);
            System.Threading.Thread th = new System.Threading.Thread(_subscribe_thread_func);
            th.IsBackground = true;
            th.Start();
        }

-        protected override void myOnLastSubscriber()
-        {
+        protected override void myOnLastSubscriber() {
            _vsd.removeWorker(this);
            _continue_sub_thread = false;
        }

-        void _log_updates(IEnumerable<PubSubServerMessage> updates)
-        {
+        void _log_updates(IEnumerable<PubSubServerMessage> updates) {
            var idx = 0;
-            foreach (var msg in updates)
-            {
+            foreach (var msg in updates) {
                bts.Log.Gen.info($"PubSubTesStream._subscribe_thread_func idx: {idx} msg: {msg}");
                idx++;
            }
        }

-        private void _subscribe_thread_func()
-        {
+        private void _subscribe_thread_func() {
            // subscription is done in another thread
            SubscriberCore sub_core = new SubscriberCore();
            sub_core.subscribe(_tag_name);
-            while (_continue_sub_thread)
-            {
+            while (_continue_sub_thread) {
                // TODO recv_id
                var updates = sub_core.get_updates(TimeSpan.FromMilliseconds(250));
                if (updates == null || updates.Count() == 0)
                    continue;
                _log_updates(updates);
                _n_updates += updates.Count();
-                if (updates.Count() > 0)
-                {
+                if (updates.Count() > 0) {
                    var server_msg = updates.Last();
-                    if (server_msg.data != null && server_msg.data.Length > 0)
-                    {
+                    if (server_msg.data != null && server_msg.data.Length > 0) {
                        _last_recvd_msg = PayloadMessage.deserialize(server_msg.data);
                        _last_recvd_msg.travel_epoch_ms = epoch_now();
-                    }
-                    else
-                    {
+                    } else {
                        // why are we getting empty or null data ? (server is sending data regardless?)
                    }
                    _fire_dirty = true;
@@ -160,36 +140,29 @@ namespace bts
            }
        }

-        private void _publish_next_packet()
-        {
-            if (_last_sent_msg == null)
-            {
-                _last_sent_msg = new PayloadMessage(0, _payload_sz, _payload_byte)
-                {
+        private void _publish_next_packet() {
+            if (_last_sent_msg == null) {
+                _last_sent_msg = new PayloadMessage(0, _payload_sz, _payload_byte) {
                    guid = Guid.NewGuid().ToString()
                };
-            }
-            else
-            {
+            } else {
                _last_sent_msg.msg_id++;
                _last_sent_msg.guid = Guid.NewGuid().ToString();
                _last_sent_msg.travel_epoch_ms = epoch_now();
            }
            var ser_bytes = _last_sent_msg.serialize();
            _n_pubs++;
-            _pub_core.publish("Blob", _tag_name, ser_bytes);
+            _pub_core.publish(String.Empty, _tag_name, ser_bytes);
            _fire_dirty = true;
        }

-        private void _fire_dp()
-        {
+        private void _fire_dp() {
            object last_sent_id = _last_sent_msg == null ? (object)DBNull.Value : (object)_last_sent_msg.msg_id;
            object last_recv_id = _last_recvd_msg == null ? (object)DBNull.Value : (object)_last_recvd_msg.msg_id;
            object echo_time = DBNull.Value;
            object last_sent_guid = _last_sent_msg == null ? (object)DBNull.Value : (object)_last_sent_msg.guid;
            object last_recv_guid = _last_recvd_msg == null ? (object)DBNull.Value : (object)_last_recvd_msg.guid;
-            if (_last_sent_msg != null && _last_recvd_msg != null)
-            {
+            if (_last_sent_msg != null && _last_recvd_msg != null) {
                echo_time = _last_recvd_msg.travel_epoch_ms - _last_sent_msg.travel_epoch_ms;
            }
            var match = last_sent_id.Equals(last_recv_id) && last_sent_guid.Equals(last_recv_guid);
@@ -201,25 +174,21 @@ namespace bts
            myFireEvent(dp);
        }

-        public void doWork()
-        {
+        public void doWork() {
            if (DateTime.Now - _last_publish_time > _publish_period)
-                if (_n_pubs <= _max_pubs)
-                {
+                if (_n_pubs <= _max_pubs) {
                    _publish_next_packet();
                    _last_publish_time = DateTime.Now;
                }
            // publish 
            // TODO: send id
-            if (_fire_dirty)
-            {
+            if (_fire_dirty) {
                _fire_dirty = false;
                _fire_dp();
            }
        }

-        public static long epoch_now()
-        {
+        public static long epoch_now() {
            return DateTimeOffset.UtcNow.ToUnixTimeMilliseconds();
        }

@@ -10,22 +10,17 @@ using System.Runtime.CompilerServices;
 using bts.api;
 using Bts.PubSub.Routing;

-namespace bts
-{
+namespace bts {
   [DataStreamUserRespresentation("pss_echo")]
-   public class PubsubEchoTestStream : ViewStream, IWorker
-   {
-      public class PayloadMessage
-      {
+   public class PubsubEchoTestStream : ViewStream, IWorker {
+      public class PayloadMessage {
         public readonly string msg_id;
         public readonly Int64 timestamp = 0;
         public readonly byte[] payload = null;

-         public static byte[] create_data(int payload_size, byte payload_byte)
-         {
+         public static byte[] create_data(int payload_size, byte payload_byte) {
            var rv = new byte[payload_size];
-            for (int i = 0; i < payload_size; i++)
-            {
+            for (int i = 0; i < payload_size; i++) {
               rv[i] = payload_byte;
            }
            return rv;
@@ -41,16 +36,14 @@ namespace bts
         //       payload[i] = payload_byte;
         //    }
         // }
-         public PayloadMessage(string guid_, Int64 timestamp_, byte[] payload_)
-         {
+         public PayloadMessage(string guid_, Int64 timestamp_, byte[] payload_) {
            msg_id = guid_;
            timestamp = timestamp_;
            payload = payload_;
         }

         private PayloadMessage() { }
-         public byte[] serialize()
-         {
+         public byte[] serialize() {
            var str = new MemoryStream();
            BinaryWriter bw = new BinaryWriter(str);
            bw.Write(msg_id);
@@ -62,8 +55,7 @@ namespace bts
            return bytes;
         }

-         public static PayloadMessage deserialize(byte[] ser_bytes)
-         {
+         public static PayloadMessage deserialize(byte[] ser_bytes) {
            var str = new MemoryStream(ser_bytes);
            BinaryReader br = new BinaryReader(str);
            string guid = br.ReadString();
@@ -89,8 +81,7 @@ namespace bts
      private readonly string _tag_name;
      private readonly int _payload_sz;
      private readonly IPubSubRouter _router;
-      private enum IOState
-      {
+      private enum IOState {
         SEND = 0,
         RECV = 1
      };
@@ -119,8 +110,7 @@ namespace bts
      public PubsubEchoTestStream(string server_url, int publish_period_msecs, int payload_size, string tag_name)
      : this(server_url, TimeSpan.FromMilliseconds(publish_period_msecs), payload_size, tag_name, ViewStreamDatabase.instance) { }

-      protected override void myOnFirstSubscriber()
-      {
+      protected override void myOnFirstSubscriber() {
         _pub_core = new PublisherCore(_router);
         _sub_core = new SubscriberCore(_router);
         _sub_core.subscribe(_tag_name);
@@ -128,14 +118,12 @@ namespace bts

      }

-      protected override void myOnLastSubscriber()
-      {
+      protected override void myOnLastSubscriber() {
         _vsd.removeWorker(this);
         _sub_core.unsubscribe(_tag_name);
      }

-      private void _fire_dp_after_send()
-      {
+      private void _fire_dp_after_send() {
         // as soon as the data is published, its reflected in the stream state
         Log.assert(_last_sent_msg != null);
         BlueRow r = new BlueRow(_table.schema, _table.Count, _last_sent_msg.msg_id, _last_sent_msg.timestamp, DBNull.Value, DBNull.Value,
@@ -145,8 +133,7 @@ namespace bts
         myFireEvent(dp_out);
      }

-      private void _fire_dp_after_recv()
-      {
+      private void _fire_dp_after_recv() {
         Log.assert(_last_recvd_msg != null);
         // update the last publish row
         int id = _table.Count - 1;
@@ -160,13 +147,11 @@ namespace bts
         myFireEvent(dp_out);
      }

-      private string _get_next_id()
-      {
+      private string _get_next_id() {
         return _table.Count.ToString();
      }

-      private void _publish_next_packet()
-      {
+      private void _publish_next_packet() {
         var bytes = PayloadMessage.create_data(_payload_sz, _payload_byte);
         _last_sent_msg = new PayloadMessage(_get_next_id(), epoch_now(), bytes);
         var ser_bytes = _last_sent_msg.serialize();
@@ -175,25 +160,19 @@ namespace bts
         _last_publish_time = DateTime.Now;
      }

-      public void doWork()
-      {
-         Func<IEnumerable<PubSubServerMessage>, PayloadMessage> find_packet = (updates) =>
-         {
-            foreach (var u in updates)
-            {
+      public void doWork() {
+         Func<IEnumerable<PubSubServerMessage>, PayloadMessage> find_packet = (updates) => {
+            foreach (var u in updates) {
               var recv_msg = PayloadMessage.deserialize(u.data);
-               if (recv_msg.msg_id == _last_sent_msg.msg_id)
-               {
+               if (recv_msg.msg_id == _last_sent_msg.msg_id) {
                  return recv_msg;
               }
            }
            return null;
         };
-         switch (_state)
-         {
+         switch (_state) {
            case IOState.SEND:
-               if (DateTime.Now - _last_publish_time >= _publish_period)
-               {
+               if (DateTime.Now - _last_publish_time >= _publish_period) {
                  _publish_next_packet();
                  _last_publish_time = DateTime.Now;
                  _fire_dp_after_send();
@@ -205,8 +184,7 @@ namespace bts
               var updates = _sub_core.get_updates(TimeSpan.Zero);
               updates = updates.Where(u => u.tag == _tag_name);
               var recv_msg = find_packet(updates);
-               if (recv_msg != null)
-               {
+               if (recv_msg != null) {
                  _last_recvd_msg = recv_msg;
                  _fire_dp_after_recv();
                  _state = IOState.SEND;
@@ -216,8 +194,7 @@ namespace bts
         }
      }

-      public static long epoch_now()
-      {
+      public static long epoch_now() {
         return DateTimeOffset.UtcNow.ToUnixTimeMilliseconds();
      }

@@ -7,45 +7,26 @@ namespace bts {
   using System.Text.Json;
   using System.Text.Json.Nodes;
   [DataStreamUserRespresentation("benzingaNews")]
-   public class BenzingaNewsStream : ViewStream {
+   public class BenzingaNewStream : ViewStream {
      private IBlueTableSchema _schema = null;
      private int _id = 0;
-
-
-      private static ViewStream _pre_process_raw_kvstream(ViewStream mongo_db_str) {
-         ViewStream r = new KeyValueToRelationalStream(mongo_db_str, "doc_id", "key", "value");
-         r = new DateStandardizationStream(r, "created_at", "ISO8601");
-         return r;
-      }
-
-      public BenzingaNewsStream(string connection_string, string db_name, string collection_name, string poll_period, string ttl)
-      : this(new MongoDBStream(connection_string, db_name, collection_name, poll_period), ttl) {
-      }
-
-      // public BenzingaNewsStream()
-      // : this(new MongoDBStream(DataStreamPub connection_string, db_name, collection_name, poll_period), ttl) {
-      // }
-
-      // assumes it gets a raw mongodb_raw_kv_stream with key value pairs
-      public BenzingaNewsStream(ViewStream mongodb_raw_kv_stream, string ttl) {
-         ViewStream output_stream = _pre_process_raw_kvstream(mongodb_raw_kv_stream);
+      // constructor takes in the raw mongo db stream, and the time to live (ttl), "7d" for example
+      public BenzingaNewStream(ViewStream mongodb_raw_stream, string ttl) {
         // Hiding body (with project, columns can be hidden, or renamed)
-         output_stream = new ProjectStream(output_stream, "!body");
+         ViewStream output_stream = new ProjectStream(mongodb_raw_stream, "!body");
         // add column news_source = 'Benzinga', so we can append other news sources
         output_stream = new AddColumnsStream(output_stream, @"news_source : Benzinga");
         // now SuperMapStream is used to map one row into multiple, one per symbol,
         // (SuperMapStream takes 2 lambdas, one to get the enw schema and another to 
         // return an array of rows, per one row)
-         output_stream = new SuperMapStream(output_stream,
+         output_stream = new SuperMapStream(mongodb_raw_stream,

        (IBlueTableSchema s) => {
           // this lambda returns the new schema (ie with extra cols symbol, exchange, is_primary_exchange)
           if (_schema == null) {
              var out_schema = s;
              out_schema = BlueDataUtility.remove_columns(out_schema, "securities");
-              out_schema = BlueDataUtility.remove_columns(out_schema, "body");
-              out_schema = BlueDataUtility.remove_columns(out_schema, "tags");
-              out_schema = BlueDataUtility.add_column(out_schema, "doc_id_internal", typeof(string));
+              out_schema = BlueDataUtility.add_column(s, "doc_id_internal", typeof(string));
              out_schema = BlueDataUtility.add_column(out_schema, "symbol", typeof(string));
              out_schema = BlueDataUtility.add_column(out_schema, "exchange", typeof(string));
              out_schema = BlueDataUtility.add_column(out_schema, "is_primary_exchange", typeof(bool));
@@ -63,13 +44,11 @@ namespace bts {
           }
           foreach (JsonNode jnode in json_objs) {
              if (jnode is JsonObject json_object) {
-                 string symbol = jnode["symbol"] == null ? String.Empty : jnode["symbol"].ToString();
-                 string exchange = jnode["exchange"] == null ? String.Empty : jnode["exchange"].ToString();
                 MutableBlueRow nr = new MutableBlueRow(_schema, r);
                 nr.setValue("id", _id++);
                 nr.setValue("doc_id_internal", $"{r["doc_id"]}_{jnode["symbol"]}");
-                 nr.setValue("symbol", symbol);
-                 nr.setValue("exchange", exchange);
+                 nr.setValue("symbol", jnode["symbol"]);
+                 nr.setValue("exchange", jnode["exchange"]);
                 nr.setValue("is_primary_exchange", Boolean.Parse(jnode["primary"].ToString()));
                 expanded_rows.Add(nr);
              }
@@ -7,127 +7,27 @@ using MongoDB.Driver;
 using System;
 using System.Collections.Generic;
 using System.Diagnostics;
-using System.Threading.Tasks;
-using System.Threading;

 namespace bts {
-    // [DataStreamUserRespresentation("mongodb_sql")]
-    // public class MongoDBSQLStream : ViewStream, IWorker {
-    //     private ViewStreamDatabase _vsd;
-    //     private readonly string _connection_string, _db_name, _collection_name;
-    //     private MongoClient _client;
-    //     // make this a sorted table
-    //     private BlueTable _table;
-
-
-    //     // Access the database
-    //     private IMongoDatabase _database;
-    //     private IDictionary<string, int> _id_map = new Dictionary<string, int>();
-    //     // mongodb://192.168.1.80:27017
-
-    //     public MongoDBSQLStream(string connection_string, string db_name, string collection_name)
-    //     : this(connection_string, db_name, collection_name, ViewStreamDatabase.instance) {
-
-    //     }
-    //     public MongoDBSQLStream(string connection_string, string db_name, string collection_name, ViewStreamDatabase vsd) {
-    //         bts.Log.Gen.info($"MongoDBStream constructed connection_string: {connection_string} " +
-    //                                 $"db_name: {db_name}");
-    //         _connection_string = connection_string;
-    //         _db_name = db_name;
-    //         _collection_name = collection_name;
-    //         _vsd = vsd;
-    //         _client = new MongoClient(_connection_string);
-    //         _database = _client.GetDatabase(_db_name);
-    //     }
-
-    //     protected override void myOnFirstSubscriber() {
-    //         MasterWorker.getInstance(false).addWorker(this, TimeSpan.FromSeconds(10));
-    //     }
-
-    //     protected override void myOnLastSubscriber() {
-    //         MasterWorker.getInstance(false).removeWorker(this);
-    //     }
-
-    //     public void doWork() {
-    //         _read_mogodb();
-    //     }
-
-    //     private void _read_mogodb() {
-    //         var timer = Stopwatch.StartNew();
-    //         // Access the collection
-    //         IMongoCollection<BsonDocument> collection = _database.GetCollection<BsonDocument>(name: _collection_name);
-
-    //         // Fetch all documents from the collection
-    //         var documents = collection.Find(Builders<BsonDocument>.Filter.Empty).ToCursor();
-    //         _table = _table == null ? null : new BlueTable(_table.schema);
-    //         // Iterate through the documents and print values
-    //         foreach (var document in documents.ToEnumerable()) {
-    //             bts.Log.Gen.info($"document: {document} json: {document.ToJson()}");
-    //             if (_table == null) {
-    //                 _init_table(document);
-    //             }
-    //             _add_row(document);
-    //         }
-    //         timer.Stop();
-    //         Log.Gen.info($"MongoDBStream time to read {_collection_name} {timer.ElapsedMilliseconds}ms");
-    //         timer.Restart();
-    //         var dp = BlueDataUtility.build_dp_inc(_table, myLastValue == null ? null : myLastValue as DataPacket, true);
-    //         timer.Stop();
-    //         Log.Gen.info($"MongoDBStream time to compare tables :{timer.ElapsedMilliseconds}ms");
-    //         if (dp.addedRows.Count == 0 && dp.deletedRows.Count == 0)
-    //             return;
-    //         myFireEvent(dp);
-    //     }
-
-    //     private void _init_table(BsonDocument doc_row) {
-    //         bts.Log.assert(_table == null);
-    //         List<ColumnInfo> cis = new List<ColumnInfo>();
-    //         cis.Add((new ColumnInfo("id", 0, typeof(Int32))));
-    //         foreach (var n in doc_row.Names) {
-    //             cis.Add(new ColumnInfo(n, cis.Count, typeof(string)));
-    //         }
-    //         IBlueTableSchema schema = new BlueTableSchema(cis.ToArray(), _collection_name);
-    //         _table = new BlueTable(schema);
-    //     }
-
-    //     private void _add_row(BsonDocument doc) {
-    //         var key_val = doc["_id"];
-    //         var key = key_val.ToString();
-    //         int id;
-    //         if (!_id_map.TryGetValue(key, out id)) {
-    //             id = _id_map.Count;
-    //             _id_map.Add(key, id);
-    //         }
-    //         MutableBlueRow nr = new MutableBlueRow(_table.schema);
-    //         nr.setValue("id", id);
-    //         foreach (var n in doc.Names) {
-    //             var val = doc[n].ToString();
-    //             nr.setValue(n, val);
-    //         }
-    //         _table.addRow(nr);
-    //     }
-    // }
-
-    [DataStreamUserRespresentation("mongodb")]
-    public class MongoDBStream : ViewStream, IWorker {
+    [DataStreamUserRespresentation("mongodb_sql")]
+    public class MongoDBSQLStream : ViewStream, IWorker {
        private ViewStreamDatabase _vsd;
        private readonly string _connection_string, _db_name, _collection_name;
-        private readonly TimeSpan _poll_period;
        private MongoClient _client;
+        // make this a sorted table
        private BlueTable _table;
-        private SyncQueue<DataPacket> _table_queue = new SyncQueue<DataPacket>();
-        private BlockingQueue _work_queue = new BlockingQueue();
+

        // Access the database
        private IMongoDatabase _database;
        private IDictionary<string, int> _id_map = new Dictionary<string, int>();
        // mongodb://192.168.1.80:27017

-        public MongoDBStream(string connection_string, string db_name, string collection_name, string poll_period)
-        : this(connection_string, db_name, collection_name, TimeBasedFilter.parse_duration(poll_period), ViewStreamDatabase.instance) {
+        public MongoDBSQLStream(string connection_string, string db_name, string collection_name)
+        : this(connection_string, db_name, collection_name, ViewStreamDatabase.instance) {

        }
-        public MongoDBStream(string connection_string, string db_name, string collection_name, TimeSpan poll_period, ViewStreamDatabase vsd) {
+        public MongoDBSQLStream(string connection_string, string db_name, string collection_name, ViewStreamDatabase vsd) {
            bts.Log.Gen.info($"MongoDBStream constructed connection_string: {connection_string} " +
                                    $"db_name: {db_name}");
            _connection_string = connection_string;
@@ -135,30 +35,114 @@ namespace bts {
            _collection_name = collection_name;
            _vsd = vsd;
            _client = new MongoClient(_connection_string);
-            _poll_period = poll_period;
            _database = _client.GetDatabase(_db_name);
        }

        protected override void myOnFirstSubscriber() {
-            _vsd.addWorker(this);
-            //MasterWorker.getInstance(false).addWorker(this, _poll_period);
+            MasterWorker.getInstance(false).addWorker(this, TimeSpan.FromSeconds(10));
        }

        protected override void myOnLastSubscriber() {
-            _vsd.removeWorker(this);
-            //MasterWorker.getInstance(false).removeWorker(this);
+            MasterWorker.getInstance(false).removeWorker(this);
        }

-        private DateTime _last_poll_time = DateTime.MinValue;
        public void doWork() {
-            var now = DateTime.Now;
-            if (now - _last_poll_time > _poll_period) {
-                ThreadPool.QueueUserWorkItem(_ => _read_mogodb());
-                _last_poll_time = DateTime.Now;
+            _read_mogodb();
+        }
+
+        private void _read_mogodb() {
+            var timer = Stopwatch.StartNew();
+            // Access the collection
+            IMongoCollection<BsonDocument> collection = _database.GetCollection<BsonDocument>(name: _collection_name);
+
+            // Fetch all documents from the collection
+            var documents = collection.Find(Builders<BsonDocument>.Filter.Empty).ToCursor();
+            _table = _table == null ? null : new BlueTable(_table.schema);
+            // Iterate through the documents and print values
+            foreach (var document in documents.ToEnumerable()) {
+                bts.Log.Gen.info($"document: {document} json: {document.ToJson()}");
+                if (_table == null) {
+                    _init_table(document);
+                }
+                _add_row(document);
            }
-            var dp = _table_queue.dequeue(0);
-            if (dp != null)
-                myFireEvent(dp);
+            timer.Stop();
+            Log.Gen.info($"MongoDBStream time to read {_collection_name} {timer.ElapsedMilliseconds}ms");
+            timer.Restart();
+            var dp = BlueDataUtility.build_dp_inc(_table, myLastValue == null ? null : myLastValue as DataPacket, true);
+            timer.Stop();
+            Log.Gen.info($"MongoDBStream time to compare tables :{timer.ElapsedMilliseconds}ms");
+            if (dp.addedRows.Count == 0 && dp.deletedRows.Count == 0)
+                return;
+            myFireEvent(dp);
+        }
+
+        private void _init_table(BsonDocument doc_row) {
+            bts.Log.assert(_table == null);
+            List<ColumnInfo> cis = new List<ColumnInfo>();
+            cis.Add((new ColumnInfo("id", 0, typeof(Int32))));
+            foreach (var n in doc_row.Names) {
+                cis.Add(new ColumnInfo(n, cis.Count, typeof(string)));
+            }
+            IBlueTableSchema schema = new BlueTableSchema(cis.ToArray(), _collection_name);
+            _table = new BlueTable(schema);
+        }
+
+        private void _add_row(BsonDocument doc) {
+            var key_val = doc["_id"];
+            var key = key_val.ToString();
+            int id;
+            if (!_id_map.TryGetValue(key, out id)) {
+                id = _id_map.Count;
+                _id_map.Add(key, id);
+            }
+            MutableBlueRow nr = new MutableBlueRow(_table.schema);
+            nr.setValue("id", id);
+            foreach (var n in doc.Names) {
+                var val = doc[n].ToString();
+                nr.setValue(n, val);
+            }
+            _table.addRow(nr);
+        }
+    }
+
+    [DataStreamUserRespresentation("mongodb")]
+    public class MongoDBStream : ViewStream, IWorker {
+        private ViewStreamDatabase _vsd;
+        private readonly string _connection_string, _db_name, _collection_name;
+        private MongoClient _client;
+        private BlueTable _table;
+
+        // Access the database
+        private IMongoDatabase _database;
+        private IDictionary<string, int> _id_map = new Dictionary<string, int>();
+        // mongodb://192.168.1.80:27017
+
+        public MongoDBStream(string connection_string, string db_name, string collection_name)
+        : this(connection_string, db_name, collection_name, ViewStreamDatabase.instance) {
+
+        }
+        public MongoDBStream(string connection_string, string db_name, string collection_name, ViewStreamDatabase vsd) {
+            bts.Log.Gen.info($"MongoDBStream constructed connection_string: {connection_string} " +
+                                    $"db_name: {db_name}");
+            _connection_string = connection_string;
+            _db_name = db_name;
+            _collection_name = collection_name;
+            _vsd = vsd;
+            _client = new MongoClient(_connection_string);
+            _database = _client.GetDatabase(_db_name);
+        }
+
+        protected override void myOnFirstSubscriber() {
+            MasterWorker.getInstance(false).addWorker(this, TimeSpan.FromSeconds(10));
+        }
+
+        protected override void myOnLastSubscriber() {
+            MasterWorker.getInstance(false).removeWorker(this);
+        }
+
+        public void doWork() {
+            _read_mogodb();
        }

        private void _read_mogodb() {
@@ -182,11 +166,10 @@ namespace bts {
            timer.Restart();
            var dp = BlueDataUtility.build_dp_inc(_table, myLastValue == null ? null : myLastValue as DataPacket, true);
            timer.Stop();
-            Log.Gen.info($"MongoDBStream time to compare tables: {timer.ElapsedMilliseconds}ms"); ;
+            Log.Gen.info($"MongoDBStream time to compare tables: {timer.ElapsedMilliseconds}ms");;
            if (dp.addedRows.Count == 0 && dp.deletedRows.Count == 0)
                return;
-            _table_queue.enqueue(dp);
-            //myFireEvent(dp);
+            myFireEvent(dp);
        }

        private void _init_table(BsonDocument doc_row) {
@@ -225,46 +208,46 @@ namespace bts {
        }
    }

-    // [DataStreamUserRespresentation("mongodb_flat")]
-    // public class MongoDBFlatStream : ViewStream {
-    //     public MongoDBFlatStream(string connection_string, string db_name, string collection_name, string timestamp_col, string ttl_duration)
-    //     :
-    //     this(ViewStreamDatabase.instance, connection_string, db_name, collection_name, timestamp_col, TimeBasedFilter.parse_duration(ttl_duration)) { }
+    [DataStreamUserRespresentation("mongodb_flat")]
+    public class MongoDBFlatStream : ViewStream {
+        public MongoDBFlatStream(string connection_string, string db_name, string collection_name, string timestamp_col, string ttl_duration)
+        :
+        this(ViewStreamDatabase.instance, connection_string, db_name, collection_name, timestamp_col, TimeBasedFilter.parse_duration(ttl_duration)) { }

-    //     public MongoDBFlatStream(ViewStreamDatabase vsd, string connection_string, string db_name, string collection_name, string timestamp_col, TimeSpan ttl_duration) {
-    //         ViewStream rs = new MongoDBStream(connection_string, db_name, collection_name, vsd);
-    //         rs = new KeyValueToRelationalStream(rs, "doc_id", "key", "val");
-    //         rs = new DateStandardizationStream(rs, timestamp_col, DateConversion.ISO8601);
-    //         //rs = new TimeBasedFilterStream(vsd, rs, timestamp_col, ttl_duration);
-    //         mySetRealSource(rs);
-    //     }
-    // }
+        public MongoDBFlatStream(ViewStreamDatabase vsd, string connection_string, string db_name, string collection_name, string timestamp_col, TimeSpan ttl_duration) {
+            ViewStream rs = new MongoDBStream(connection_string, db_name, collection_name, vsd);
+            rs = new KeyValueToRelationalStream(rs, "doc_id", "key", "val");
+            rs = new DateStandardizationStream(rs, timestamp_col, DateConversion.ISO8601);
+            //rs = new TimeBasedFilterStream(vsd, rs, timestamp_col, ttl_duration);
+            mySetRealSource(rs);
+        }
+    }



-    // [DataStreamUserRespresentation("newsreplay")]
-    // public class NewsReplayStream : ViewStream {
-    //     public NewsReplayStream(string connection_string, string db_name, string collection_name,
-    //                             int buffer_sz, string fire_period) :
-    //     this(ViewStreamDatabase.instance, connection_string, db_name, collection_name, buffer_sz, TimeBasedFilter.parse_duration(fire_period)) { }
+    [DataStreamUserRespresentation("newsreplay")]
+    public class NewsReplayStream : ViewStream {
+        public NewsReplayStream(string connection_string, string db_name, string collection_name,
+                                int buffer_sz, string fire_period) :
+        this(ViewStreamDatabase.instance, connection_string, db_name, collection_name, buffer_sz, TimeBasedFilter.parse_duration(fire_period)) { }

-    //     public NewsReplayStream(ViewStreamDatabase vsd, string connection_string, string db_name, string collection_name,
-    //                             int buffer_sz, TimeSpan fire_period) {
-    //         ViewStream r;
+        public NewsReplayStream(ViewStreamDatabase vsd, string connection_string, string db_name, string collection_name,
+                                int buffer_sz, TimeSpan fire_period) {
+            ViewStream r;

-    //         r = new MongoDBStream(connection_string, db_name, collection_name, vsd);
-    //         r = new KeyValueToRelationalStream(r,
-    //                                             "doc_id",
-    //                                             "key",
-    //                                             "value");
-    //         r = new DateStandardizationStream(r,
-    //                                            "created_at",
-    //                                            "ISO8601");
-    //         r = new SnapshotReplayStream(vsd, r, "created_at", buffer_sz, fire_period);
+            r = new MongoDBStream(connection_string, db_name, collection_name, vsd);
+            r = new KeyValueToRelationalStream(r,
+                                                "doc_id",
+                                                "key",
+                                                "value");
+            r = new DateStandardizationStream(r,
+                                               "created_at",
+                                               "ISO8601");
+            r = new SnapshotReplayStream(vsd, r, "created_at", buffer_sz, fire_period);

-    //         mySetRealSource(r);
-    //     }
-    // }
+            mySetRealSource(r);
+        }
+    }


 }
@@ -6,7 +6,6 @@ namespace bts {
   using System;
   using System.Collections;
   using System.Collections.Generic;
-   using System.Linq;

   public class ProjectData {
      // schema from the base stream
@@ -148,23 +147,12 @@ namespace bts {
               mapped_to_orig_map.Add(mapped_col, orig_col);
               orig_to_mapped.Add(orig_col, mapped_col);
            } else {
-               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);
-               }
+               Log.Gen.error($"NewProjectStream unexpecetd token: {p_tok}");
            }
         }
         // make the new schema
         List<ColumnInfo> new_cols = new List<ColumnInfo>();
         foreach (ColumnInfo ci in input_schema.columnInfo) {
-            if (ci.colName == "id") {
-               // if there's a hidden col, other columns will show by default, but if cols are being
-               // projected epxlicitely, than others wil be hidden
-               ColumnInfo nc = new ColumnInfo(ci.colName, new_cols.Count, ci.colType);
-               new_cols.Add(nc);
-               continue;
-            }
            if (removed_cols.Contains(ci.colName)) {
               continue;
            } else if (orig_to_mapped.ContainsKey(ci.colName)) {
@@ -172,12 +160,8 @@ namespace bts {
               ColumnInfo nc = new ColumnInfo(mapped_name, new_cols.Count, ci.colType);
               new_cols.Add(nc);
            } else {
-               if (ci.colName == "id" || removed_cols.Count > 0) {
-                  // if there's a hidden col, other columns will show by default, but if cols are being
-                  // projected epxlicitely, than others wil be hidden
-                  ColumnInfo nc = new ColumnInfo(ci.colName, new_cols.Count, ci.colType);
-                  new_cols.Add(nc);
-               }
+               ColumnInfo nc = new ColumnInfo(ci.colName, new_cols.Count, ci.colType);
+               new_cols.Add(nc);
            }
         }
         IBlueTableSchema new_schema = new BlueTableSchema(input_schema.tableName, new_cols.ToArray());
@@ -1,11 +1,11 @@
 namespace Bts.DataStream.Services;

 using BCG;
+using BCG.Utilities.General;

 using Microsoft.Extensions.DependencyInjection;

 public static class DataStreamServices {
   public static IServiceCollection AddRemoteQueryManager(this IServiceCollection services) =>
-      services.AddSingleton<RemoteQueryManager>()
-         .AddHostedService(sp => sp.GetRequiredService<RemoteQueryManager>());
+      services.AddSingleton<IWorker, RemoteQueryManager>();
 }
@@ -1783,18 +1783,6 @@ namespace BCG {
         #endregion
      }

-      public static IBlueRow find_max(IEnumerable<IBlueRow> rows, params string[] cols_to_compare) {
-         if (rows == null || rows.Count() == 0)
-            return null;
-         IBlueRow max_row = rows.ElementAt(0);
-         foreach (IBlueRow r in rows) {
-            int c = compare_rows(r, max_row, cols_to_compare);
-            if (c > 0)
-               max_row = r;
-         }
-         return max_row;
-      }
-
      public static int compare_rows(IBlueRow r1, IBlueRow r2, Dictionary<string, bool> sort_map) {
         foreach (KeyValuePair<string, bool> p in sort_map) {
            int comp = compare_send_dontcare_to_last(r1, p.Key, r2, p.Key, p.Value);
@@ -115,16 +115,10 @@ public class DataPacketJsonConverter : JsonConverter<DataPacket> {
            return NullCheckWrapper(v => writer.WriteNumberValue((ushort)v));
         }
         if (t == typeof(double)) {
-            return NullCheckWrapper(v => {
-               var dbl = Equals(v, DBNull.Value) ? double.NaN : (double)v;
-               JsonSerializer.Serialize(writer, dbl, options);
-            });
+            return NullCheckWrapper(v => JsonSerializer.Serialize(writer, (double)v, options));
         }
         if (t == typeof(float)) {
-            return NullCheckWrapper(v => {
-               var flt = Equals(v, DBNull.Value) ? float.NaN : (float)v;
-               writer.WriteNumberValue(flt);
-            });
+            return NullCheckWrapper(v => writer.WriteNumberValue((float)v));
         }
         if (t == typeof(bool)) {
            return NullCheckWrapper(v => writer.WriteBooleanValue((bool)v));
@@ -32,9 +32,6 @@ namespace BCG
      public DataStream (DataStream realSource)
      {
         myRealSource = realSource;
-         if (myRealSource is not null) {
-            myRealSource.ErrorChanged += OnError;
-         }
         myOnChangeDelegate = null;
         myPendingAdds = new Stack();
      }
@@ -51,8 +48,6 @@ namespace BCG
         }
      }

-      public event Action<Exception> ErrorChanged;
-
      public delegate void ChangeDelegate(object newValue);
      public event ChangeDelegate onChange
      {
@@ -125,15 +120,8 @@ namespace BCG
      protected virtual object myGetValueForInitialSubscription()
      {return myLastValue;}

-      protected void mySetRealSource (DataStream src) {
-         if (myRealSource is not null) {
-            myRealSource.ErrorChanged -= OnError;
-         }
-         myRealSource = src;
-         if (myRealSource is not null) {
-            myRealSource.ErrorChanged += OnError;
-         }
-      }
+      protected void mySetRealSource (DataStream src)
+      {myRealSource = src;}

      protected virtual void myOnFirstSubscriber() {myFirstSubImplemented = false;}
      protected virtual void myOnLastSubscriber () {myLastSubImplemented = false;}
@@ -155,11 +143,6 @@ namespace BCG
         }
      }

-      protected void OnError(Exception error) {
-         Log.Gen.error($"{GetType()} OnError: {error}");
-         ErrorChanged?.Invoke(error);
-      }
-
      public Guid ID
      {
         get
@@ -8,7 +8,7 @@

  <ItemGroup>
    <PackageReference Include="Google.Protobuf" Version="3.24.3" />
-    <PackageReference Include="Microsoft.Extensions.Hosting" Version="7.0.1" />
+    <PackageReference Include="Microsoft.Extensions.Hosting" Version="8.0.0" />
  </ItemGroup>

  <ItemGroup>
@@ -91,7 +91,7 @@ namespace BCG
         IBlueRowCollection d_rows, a_rows;
         //BlueDataUtility.compute_differences_id_based(_table, table_0, out d_rows, out a_rows);
         BlueDataUtility.compute_differences_fast(_table, table_0, out d_rows, out a_rows);
-         _on_update_delegate?.Invoke(_table, a_rows, d_rows);
+         _on_update_delegate(_table, a_rows, d_rows);
      }

      public void update(Stream[] streams)
@@ -3,15 +3,19 @@ namespace Bts.DataStreamCore.Services;
 using BCG;
 using BCG.Utilities.General;

+using Bts.PubSub.Services;
+
+using Microsoft.Extensions.Configuration;
 using Microsoft.Extensions.DependencyInjection;

 public static class DataStreamCoreServices {
   public static IServiceCollection AddPubTableBroker(this IServiceCollection services) =>
      services.AddSingleton<IPubTableBroker, PubTableBroker>();

-   public static IServiceCollection AddViewStreamDatabase(this IServiceCollection services) =>
-      services.AddSingleton<IWorker, ViewStreamDatabase>(sp => {
-         ViewStreamDatabase.SetGlobalInstance(new ViewStreamDatabase(sp.GetRequiredService<ISubscriberCore>()));
-         return ViewStreamDatabase.instance;
-      });
+   public static IServiceCollection AddViewStreamDatabase(this IServiceCollection services, IConfiguration configurationSection) =>
+      services.Configure<WorkerServiceConfig>(configurationSection)
+         .AddSingleton<IWorker, ViewStreamDatabase>(sp => {
+            ViewStreamDatabase.SetGlobalInstance(new ViewStreamDatabase(sp.GetRequiredService<ISubscriberCore>()));
+            return ViewStreamDatabase.instance;
+         });
 }
@@ -1,5 +1,11 @@
 using System;

+using BCG.Utilities;
+
+using Bts.DataStream;
+
+using mbts.config;
+
 namespace BCG
 {
    /// <summary>
@@ -8,29 +14,17 @@ namespace BCG
   public abstract class ViewStream : DataStream
   {
      private IBlueRowCollection myLastValueForTestMode;
-      // protected bool myUseUncopiedNewRowsInFireEvent =
-      //    Configuration.get<DataStreamConfig>().UseUncopiedNewRowsInFire;
-      protected bool myUseUncopiedNewRowsInFireEvent = false;
-
-      string streamName;
+      protected bool myUseUncopiedNewRowsInFireEvent =
+         Configuration.get<DataStreamConfig>().UseUncopiedNewRowsInFire;

      public ViewStream (ViewStream sourceStream)
-         : base(sourceStream) {
-      }
-
-      public ViewStream(string streamName) {
-         this.streamName = streamName;
-      }
+         :
+         base(sourceStream)
+      {}

      public ViewStream()
      {}

-      public Guid StreamId { get; } = Guid.NewGuid();
-
-      public string StreamName => streamName
-         ?? (myRealSource as ViewStream)?.StreamName
-         ?? GetType().Name;
-
      public IBlueRowCollection rows
      {
         get
@@ -1,7 +1,13 @@
 using System;
+using System.Collections;
+using System.IO;
+using BCG.Utilities;
 using BCG.Utilities.General;
+//using BCG.Utilities.BlueConfiguration;
 using System.Collections.Generic;
 using System.Threading;
+using mbts;
+using System.Linq;
 using System.Diagnostics;
 using bts;

@@ -13,17 +19,24 @@ namespace BCG {
                                    onDoWorkEnd;
      private event TagFireDelegate onTagFireStart,
                                    onTagFireEnd;
+      //currently onTagUpdate is usd by the DataStreamPerfRecorder to keep track of how often the updates for various streams come in
+      //and how big they are. 
+      //public delegate void OnTagUpdateDelegate(PubMetaData metaData);
+      //public event OnTagUpdateDelegate onTagUpdate;
      private Dictionary<string, ITableAccumulator> _table_accumulator_map = new Dictionary<string, ITableAccumulator>();
      private static ViewStreamDatabase mySelf;
      private ISubscriberCore mySubscriberCore;
      private List<IWorker> _workers = new List<IWorker>();
      private bool myIsDisposed = false;
+      private bool _is_in_do_work = false;
+      private static object myTimeInterval;
      readonly Stopwatch _timer = new();
      readonly TimeSpan myLogTimeThreshold = TimeSpan.FromSeconds(10);
      readonly TimeSpan _dowork_threshold = TimeSpan.FromMilliseconds(500);
      private Thread myThreadOwner = null;  // ViewStreamDatabase takes a thread affinity when created.  If called from a different thread it will assert.

      private static readonly object myInstanceLockObject = new object();
+      private readonly object myStateLock = new object();

      public ViewStreamDatabase()
         : this(new SubscriberCore()) {
@@ -31,17 +44,47 @@ namespace BCG {

      public ViewStreamDatabase(ISubscriberCore subscriberCore) {
         mySubscriberCore = subscriberCore;
+         // if (DataStreamLoadFileConfig.instance.profileStreams)
+         //    new DataStreamPerfRecorder(this);
      }

+      private static int myGetTimeInterval() {
+         if (myTimeInterval == null) {
+            // TODO
+            string timeInterval = String.Empty; //ConfigurationRequester.request("viewStreamDatabaseTimeOut");
+            if (timeInterval == null || timeInterval == "")
+               myTimeInterval = 0;
+            else
+               myTimeInterval = Int32.Parse(timeInterval);
+         }
+         return (int)myTimeInterval;
+      }
+
+      public static int instance_hashcode = -1;
      public static ViewStreamDatabase instance {
         get {
-            var rv = mySelf;
-            Log.notnull(rv);
-            Log.assert(!rv.myIsDisposed);
-            return rv;
+            if (mySelf == null || mySelf.myIsDisposed)
+               lock (myInstanceLockObject) {
+                  if (mySelf == null || mySelf.myIsDisposed) {
+                     mySelf = new ViewStreamDatabase();
+                     instance_hashcode = mySelf.GetHashCode();
+                  }
+               }
+            return mySelf;
+         }
+         set {
+            lock (myInstanceLockObject) {
+               if (mySelf != null)
+                  mySelf.mySubscriberCore.Dispose();
+               mySelf = value;
+               instance_hashcode = mySelf.GetHashCode();
+            }
         }
      }

+      public ISubscriberCore subscriber { get { return mySubscriberCore; } }
+
+
      public ITableAccumulator getITableAccumulator(string table_name) {
         // If theres a ITableAccumulator for the tableName its returned (to share subscriptions), otherwise 
         // a new one is obtained from the Subscriber factory
@@ -58,6 +101,8 @@ namespace BCG {
         // TODO
         verifyAccess();

+         if (_is_suspended)
+            return;
         if (_is_worker_call_in_progress)
            return;
         else {
@@ -113,6 +158,7 @@ namespace BCG {
                     removeWorker(op.w);
            } finally {
               _pending_worker_ops.Clear();
+               _is_in_do_work = false;
               _is_worker_call_in_progress = false;
               if (onDoWorkEnd != null)
                  onDoWorkEnd();
@@ -120,6 +166,12 @@ namespace BCG {
         }
      }

+      private bool _is_suspended = false;
+
+      public void suspend() { _is_suspended = true; }
+
+      public void resume() { _is_suspended = false; }
+
      public bool checkAccess() {
         if (this.myThreadOwner == null) this.myThreadOwner = Thread.CurrentThread;
         return this.myThreadOwner == Thread.CurrentThread;
@@ -151,6 +203,8 @@ namespace BCG {
         return rv;
      }

+      public bool isConsistent { get { return true; } }
+
      public void addWorker(IWorker w) {
         verifyAccess();
         if (_is_worker_call_in_progress)
@@ -159,6 +213,7 @@ namespace BCG {
            _workers.Add(w);
      }

+
      public void removeWorker(IWorker w) {
         verifyAccess();
         if (_is_worker_call_in_progress)
@@ -177,10 +232,8 @@ namespace BCG {
      }

      internal static void SetGlobalInstance(ViewStreamDatabase vsd) {
-         lock (myInstanceLockObject) {
-            Log.isnull(mySelf);
-            mySelf = vsd;
-         }
+         Log.isnull(mySelf);
+         mySelf = vsd;
      }

      private List<PendingAddRemoveWorker> _pending_worker_ops = new List<PendingAddRemoveWorker>();
@@ -7,6 +7,7 @@
  </PropertyGroup>

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

@@ -0,0 +1,120 @@
+{
+  "Sparkd": {
+    "Config": {
+      "ConfigServer": "http://localhost:8000/config"
+    },
+    "Credentials": {
+      "User": "bts",
+      "Password": ""
+    },
+    "EnableAdmin": true,
+    "EnableOrders": true,
+    "EnablePosition": true
+  },
+  "MasterWorker": {
+    "Interval": "00:00:00.1"
+  },
+  "Publisher": {
+    "Publishers": [
+      {
+        "Name": "test_data",
+        "Streams": [
+          {
+            "Name": "milliseconds_1000_100",
+            "Expression": "milliseconds(3000,5)",
+            "IsOnWebsocket": true
+          }
+        ]
+      }
+    ]
+  },
+  "PubSub": {
+    "MillisecondsBetweenSubInfoUpdates": 1000,
+    "MillisecondsBetweenTimeSliceUpdates": 5000,
+    "MillisecondsBetweenNoBufferSpaceRetries": 100,
+    "RetriesOnNoBufferSpace": 1,
+    "DoItAllSecondsBetweenLogs": 0,
+    "HeartbeatInterval": 15000,
+    "MissingHeartbeatsBeforeGc": 50,
+    "UseManagedSockets": true,
+    "StateUpdatePeriod": 5000,
+    "StatisticsUpdatePeriod": 5000,
+    "DisposedConnectionCheckPeriod": 1000,
+    "MessageProcessingWarningThreshold": 1000,
+    "ServerPort": 12345,
+    "Routing": {
+      "PublisherRoutes": [
+        {
+          "Name": "default",
+          "ServerAddress": "bts-cloud://127.0.0.1:12345",
+          "TagRegExp": ".*"
+        }
+      ],
+      "SubscriberRoutes": [
+        {
+          "Name": "default",
+          "ServerAddress": "bts-cloud://127.0.0.1:12345",
+          "TagRegExp": ".*"
+        }
+      ]
+    },
+    "MaxPacketSize": 500000000,
+    "BlueCommMustDie": true,
+    "CrushableTags": [],
+    "TagTypeToAssemblyMap": {
+      "Entries": [
+        {
+          "HandlerClass": "BCG.PubSubServerTagHandler",
+          "Assembly": "DataStreamCore.dll"
+        }
+      ]
+    },
+    "TagHandlerFactory": {
+      "Handlers": [
+        {
+          "TagType": "DataStream",
+          "Assembly": "DataStreamCore",
+          "Class": "bts.PubsubServerStreamTagHandler"
+        },
+        {
+          "TagType": "System_Sub",
+          "Assembly": "PubSub",
+          "Class": "BCG.SystemSubscriptionMapPublisher"
+        },
+        {
+          "TagType": "System_Stats",
+          "Assembly": "PubSub",
+          "Class": "BCG.SystemStatsPublisher"
+        },
+        {
+          "TagType": ".*",
+          "Assembly": "DataStreamCore",
+          "Class": "bts.PubsubServerGenericDataHandler"
+        }
+      ]
+    },
+    "ServerQueue": "PubSubQueue",
+    "PortRange": {
+      "First": 30400,
+      "Last": 31700
+    },
+    "BindToRandomPort": false,
+    "DebugTags": "^NOTAGS$",
+    "LatencyReportThresholdMs": 1500,
+    "UseSubstations": false,
+    "UseDynamicClients": false,
+    "IsSubstation": false,
+    "InternallyPublishSubInfo": true,
+    "UseManagedClientsInNativeCode": false,
+    "CompressedTags": "^NOTAGS$",
+    "TagsToReportCompressionRatio": "^NOTAGS$",
+    "DisableMsmq": false,
+    "UsePrepublishedServerState": false,
+    "IpTranslation": null,
+    "GcActivationThreshold": 0,
+    "WaitPeriodAfterGc": 1000
+  },
+  "ViewStreamDatabase": {
+    "Interval": "00:00:01"
+  }
+}
@@ -0,0 +1,4 @@
+{
+  "user": "bts",
+  "simple_echo_client": true
+}
@@ -0,0 +1,73 @@
+{
+  "user": "bts",
+  "pubsub": {
+    "milliseconds_between_sub_info_updates": 1000,
+    "milliseconds_between_time_slice_updates": 5000,
+    "milliseconds_between_no_buffer_space_retries": 100,
+    "retries_on_no_buffer_space": 1,
+    "do_it_all_seconds_between_logs": 0,
+    "heartbeat_interval": 15000,
+    "missing_heartbeats_before_gc": 50,
+    "use_managed_sockets": true,
+    "state_update_period": 5000,
+    "statistics_update_period": 5000,
+    "disposed_connection_check_period": 1000,
+    "message_processing_warning_threshold": 1000,
+    "server_port": 12345,
+    "publisher_routes": [
+      {
+        "name": "default",
+        "server_address": "bts-cloud://localhost:12345",
+        "tag": ".*"
+      }
+    ],
+    "subscriber_routes": [
+      {
+        "name": "default",
+        "server_address": "bts-cloud://localhost:12345",
+        "tag": ".*"
+      }
+    ],
+    "max_packet_size": 500000000,
+    "blue_comm_must_die": true,
+    "crushable_tags": [],
+    "tag_type_to_assembly_map": [
+      {
+        "handler_class": "BCG.PubSubServerTagHandler",
+        "assembly": "DataStreamCore.dll"
+      }
+    ],
+    "server_queue": "PubSubQueue",
+    "port_range": {
+      "first": 30400,
+      "last": 31700
+    },
+    "bind_to_random_port": false,
+    "debug_tags": "^NOTAGS$",
+    "latency_report_threshold_ms": 1500,
+    "use_substations": false,
+    "use_dynamic_clients": false,
+    "is_substation": false,
+    "internally_publish_sub_info": true,
+    "use_managed_clients_in_native_code": false,
+    "compressed_tags": "^NOTAGS$",
+    "tags_to_report_compression_ratio": "^NOTAGS$",
+    "disable_msmq": false,
+    "use_prepublished_server_state": false,
+    "ip_translation": null,
+    "gc_activation_threshold": 0,
+    "wait_period_after_gc": 1000
+  },
+  "publishers": [
+    {
+      "name": "test_data",
+      "streams": [
+        {
+          "name": "test_literal",
+          "expression": "literal(\"x\", \"420.0\")",
+          "is_on_websocket": true
+        }
+      ]
+    }
+  ]
+}
Author	SHA1	Message	Date
John Colvin	ba664b95b8	fix use dep injection in bts.datastreamwebapp.server	2024-07-11 11:06:29 -04:00
John Colvin	d6f370f862	fix Add spark service modules designed for DependencyInjection	2024-07-11 11:05:23 -04:00
John Colvin	079826f4de	Fix mismatched types in PubsubHeartbeatStream schema	2024-07-11 10:59:41 -04:00
John Colvin	2eee3cdaab	Change DataStreamPublisher json fields to match cs class property names verbatim	2024-07-11 10:43:24 -04:00
John Colvin	5e3215ee52	fix: Always call 'handle_internal_pubs' in PubSubMessageReactor main loop	2024-07-11 10:38:30 -04:00
John Colvin	7739cc2f3d	Use Dependency Injection in Bts.DataStreamWebApp.Server	2024-07-11 10:37:29 -04:00
John Colvin	8347a7c126	refactor: Change Bts.DataStreamWebApp.Server framework from net8 -> net7 Although it would build on net8, all other cs code targets net7. Furthermore, VS Code intellisense seems less reliable/crashes frequently when the sln file targets both frameworks).	2024-07-11 10:37:28 -04:00
John Colvin	fbfc960df6	improvement: Make DataStreamSubscription an IHostedService To properly manage its life cycle	2024-07-11 10:37:28 -04:00
John Colvin	451f721030	improvement: Accept CancellationToken, catch exceptions when running ds websocket server	2024-07-11 10:37:28 -04:00
John Colvin	bb992c0410	Fix mismatched types in PubSubServerTagStatsStream schema	2024-07-11 10:37:28 -04:00
John Colvin	db18aebf92	Add DataStreamPublisher service modules designed for Dependency Injection	2024-07-11 10:37:28 -04:00
John Colvin	8127c9c9fe	refactor: Decouple ViewPublisher from IPubTableBroker impl	2024-07-11 10:37:28 -04:00
John Colvin	1825b339b1	Change PubSubServer json fields to match cs class property names verbatim	2024-07-11 10:37:28 -04:00
John Colvin	03ab3fbe90	Get rid of JsonPropertyName attributes in PubSubConfig The Dependency Injection framework (based around dotnet ApplicationBuilder) does not support this attribute, and maps property names verbatim to json fields.	2024-07-11 10:37:28 -04:00
John Colvin	b61bf16a42	Add PubSub service modules designed for Dependency Injection	2024-07-11 10:37:28 -04:00
John Colvin	d969489bf4	refactor: Decouple RemoteQueryManager from IManagedSubscriber, IPubTableBroker impl	2024-07-11 10:37:28 -04:00
John Colvin	9cd4974f49	refactor: Decouple ManagedSubscriber from ISubscriberCore impl	2024-07-11 10:37:28 -04:00
John Colvin	793634c8cb	refactor: Only support 1 tag type in IPubSubServerTagHandler	2024-07-11 10:37:28 -04:00
John Colvin	eae20b6c94	refactor: Decouple PubTableBroker from IPublisherCore impl Reference interface rather than the PublisherCore impl.	2024-07-11 10:37:28 -04:00
John Colvin	2848bb6a5d	improvement: Accept CancellationToken in JsonRpcRequestObservable	2024-07-11 10:37:16 -04:00
John Colvin	687324998b	Add spark service modules designed for Dependency Injection	2024-07-11 10:36:04 -04:00
John Colvin	97cebd62d4	fix: Dispose market data sub in various md streams	2024-07-11 10:36:04 -04:00
John Colvin	492ca0c28f	cleanup: Remove unused pubsub tag handler code * Removed 'IPubSubServerTagHandler.register' - All implementations of this function were empty * Removed 'IPubSubServerTagHandler.supportedTagTypes' - This property wasn't referenced anywhere * Remove IWorker inheritance from IPubSubServerTagHandler - No reason these interfaces have to be tied together	2024-07-10 13:35:18 -04:00
John Colvin	baa5019039	refactor: Rename CloudStreamManager.cs -> RemoteQueryManager.cs This matches the file name	2024-07-10 01:18:21 -04:00
John Colvin	ac2d31e1fc	fix build: Update vcpkg On some vs versions, vcpkg cmake scripts would fail w/ an error saying "Could not locate a complete Visual Studio instance"	2024-07-09 15:16:36 -04:00
John Colvin	9821134bc3	Change pub sub schema prefix 'bluto://' -> 'bts-cloud://' In config json files (not actual code change)	2024-07-09 15:14:30 -04:00
John Colvin	9cf892322d	fix build: Fix prop names after refactoring PubSubRoute * Change 'server_address' -> 'ServerAddress' * Change 'tag_reg_exp' -> 'TagRegExp'	2024-07-09 15:14:30 -04:00
John Colvin	77bf91be1e	build: Add scripts to publish data stream apps	2024-07-09 15:14:30 -04:00
John Colvin	63b064ac79	Fix typo in log msg	2024-07-09 15:14:30 -04:00
John Colvin	b617775c29	Fix net7 -> net8 typo in publish_data_stream_web_app.py The DataStream Web App is on net8	2024-07-09 15:14:30 -04:00
John Colvin	4f7d77420c	Fix build scripts so they propagate the exit code back to the shell I noticed this was broken because launch.json configurations would still start the debugger even when the preLaunchTask (build) failed!	2024-07-09 15:14:30 -04:00
John Colvin	3ba6a91ca7	vscode: Add DataStreamPublisher debug cfg to skip build	2024-07-09 15:14:30 -04:00
John Colvin	0abde9eb7c	build: Use separate cmd to build DataStreamSuite/QueryAnalyzer.sln The DataStreamSuite.sln builds the new webapp now, which will (eventually) replace DSQA. We'll keep it around for now, but with a clean separation from the main build.	2024-07-09 15:14:30 -04:00
John Colvin	1531a57bc5	feat: Add DataStream WebApp Included in DataStreamSuite.sln, but not DataStreamQueryAnalyzer.sln	2024-07-09 15:14:29 -04:00
John Colvin	a62ea64c5e	build: Copy libspark to all dotnet dirs in single cmake target This is cleaner than the previous impl, which used separate build targets to copy libspark to "net7.0", and "net7.0-windows" (dirs). Note: I decided to clean this up now because I'm about to upgrade the new DataStream WebApp to net8.0, and did not want to add yet another build target to copy libspark to "net8.0".	2024-07-09 15:14:29 -04:00
				`@@ -1 +0,0 @@`
				`VITE_DATASTREAM_WEBSOCKET_URL=wss://localhost:443`