file restructuring for sdk

WARNING: This breaks the sparkd clang build (only works with gcc)

.devcontainer/Dockerfile

@@ -0,0 +1,122 @@
+FROM ubuntu:22.04
+
+ARG DEBIAN_FRONTEND=noninteractive
+
+# Note installations that take a while (more than 10s)
+
+RUN apt-get update
+RUN apt-get install -y ca-certificates
+RUN apt-get install -y ccache
+RUN apt-get install -y curl
+RUN apt-get install -y fish
+RUN apt-get install -y gdb
+# git-all: ~250s
+RUN apt-get install -y git-all
+RUN apt-get install -y gnupg
+# liblttng-ust-dev: ~30s
+RUN apt-get install -y liblttng-ust-dev
+RUN apt-get install -y libssh2-1-dev
+RUN apt-get install -y locales
+RUN apt-get install -y ninja-build
+# openssh-server: ~40s
+RUN apt-get install -y openssh-server
+RUN apt-get install -y pkg-config
+RUN apt-get install -y software-properties-common
+RUN apt-get install -y sudo
+RUN apt-get install -y tzdata
+RUN apt-get install -y vim
+RUN apt-get install -y zip
+
+# Python: ~30s
+RUN apt-get install -y \
+   python3-pip \
+   python3-venv \
+   && python3 -m pip install --upgrade pip
+
+# GCC
+ARG gcc_major=13
+RUN \
+   add-apt-repository ppa:ubuntu-toolchain-r/test \
+   && apt-get update \
+   && apt-get install -y g++-$gcc_major
+
+# Clang
+ARG clang_major=17
+RUN \
+   curl -fsSL https://apt.llvm.org/llvm-snapshot.gpg.key 2> /dev/null \
+   | gpg --dearmor - \
+   | tee /usr/share/keyrings/llvm-snapshot.gpg > /dev/null \
+   && echo "deb [signed-by=/usr/share/keyrings/llvm-snapshot.gpg] http://apt.llvm.org/$(lsb_release -cs)/ llvm-toolchain-$(lsb_release -cs)-$clang_major main" \
+   | tee -a "/etc/apt/sources.list.d/llvm.list" \
+   && apt-get update \
+   && apt-get install -y \
+   clang-$clang_major \
+   clang-format-$clang_major \
+   clangd-$clang_major
+
+# CMake
+RUN \
+   curl -fsSL https://apt.kitware.com/keys/kitware-archive-latest.asc 2> /dev/null \
+   | gpg --dearmor - \
+   | tee /usr/share/keyrings/kitware-archive-keyring.gpg > /dev/null \
+   && echo "deb [signed-by=/usr/share/keyrings/kitware-archive-keyring.gpg] https://apt.kitware.com/ubuntu/ $(lsb_release -cs) main" \
+   | tee /etc/apt/sources.list.d/kitware.list > /dev/null \
+   && apt-get update \
+   && apt-get install -y cmake
+
+# Dotnet
+RUN apt-get update && apt-get install -y dotnet7
+
+# Node
+ARG node_major=18
+RUN mkdir -p /etc/apt/keyrings \
+   && curl -fsSL https://deb.nodesource.com/gpgkey/nodesource-repo.gpg.key \
+   | gpg --dearmor -o /etc/apt/keyrings/nodesource.gpg \
+   && echo "deb [signed-by=/etc/apt/keyrings/nodesource.gpg] https://deb.nodesource.com/node_$node_major.x nodistro main" \
+   | tee /etc/apt/sources.list.d/nodesource.list \
+   && apt-get update \
+   && apt-get install -y nodejs
+
+# Emumba (deps)
+RUN apt-get update && apt-get -y install rapidjson-dev
+# Emumba
+COPY emumba /emumba
+RUN dpkg -i /emumba/emumba-deribit-connector-3.3.1-Linux.LICENSE_DISABLED.deb \
+    && rm -r /emumba
+
+# Pcap
+RUN apt-get update && apt-get install -y libpcap0.8-dev
+
+# Set up default executables (update-alternatives)
+RUN \
+   update-alternatives --install /usr/bin/clang clang /usr/bin/clang-$clang_major 100; \
+   update-alternatives --install /usr/bin/clang++ clang++ /usr/bin/clang++-$clang_major 100; \
+   update-alternatives --install /usr/bin/clang-format clang-format /usr/bin/clang-format-$clang_major 100; \
+   update-alternatives --install /usr/bin/clangd clangd /usr/bin/clangd-$clang_major 100; \
+   update-alternatives --install /usr/bin/gcc gcc /usr/bin/gcc-$gcc_major 100; \
+   update-alternatives --install /usr/bin/g++ g++ /usr/bin/g++-$gcc_major 100
+
+# Add compiler symlinks for ccache 
+RUN \
+   ln -s /usr/bin/ccache /usr/local/bin/clang; \
+   ln -s /usr/bin/ccache /usr/local/bin/clang++; \
+   ln -s /usr/bin/ccache /usr/local/bin/clang-$clang_major; \
+   ln -s /usr/bin/ccache /usr/local/bin/clang++-$clang_major; \
+   ln -s /usr/bin/ccache /usr/local/bin/gcc; \
+   ln -s /usr/bin/ccache /usr/local/bin/g++
+
+RUN locale-gen en_US.UTF-8
+
+ARG docker_user="bts"
+ARG docker_uid="1000"
+ARG docker_pass="bts"
+
+RUN \
+   groupadd -g "$docker_uid" "$docker_user" \
+   && useradd \
+   -m \
+   -u "$docker_uid" \
+   -g "$docker_uid" \
+   -G sudo \
+   --password "$(openssl passwd -1 "$docker_pass")" \
+   "$docker_user"

.devcontainer/devcontainer.json

@@ -0,0 +1,48 @@
+{
+  "dockerFile": "Dockerfile",
+  // Creates local dir to mount to HOME in docker 
+  "initializeCommand": "mkdir -p ${localEnv:HOME}/.bts/devcontainer-mounts/${devcontainerId}",
+  "hostRequirements": {
+    "memory": "4gb",
+    "storage": "6gb"
+  },
+  "postCreateCommand": "/home/bts/spark/docker/sparkd/dev/devcontainer_post_create.sh",
+  "containerUser": "bts",
+  "workspaceMount": "source=${localWorkspaceFolder},target=/home/bts/spark,type=bind",
+  "workspaceFolder": "/home/bts/spark",
+  "updateRemoteUserUID": true,
+  "shutdownAction": "none",
+  // Note: If running multiple containers on the same host, each must use a
+  // unique set of ports. Usually we just add 1000 to each port as needed. For
+  // example, if 8000-8003 is taken, go with 9000-9003, then 10000-10003, etc.
+  "runArgs": [
+    "--shm-size",
+    "2gb",
+    "-p",
+    "8000:8000",
+    "-p",
+    "8001:8001",
+    "-p",
+    "8002:8002",
+    "-p",
+    "8003:8003"
+  ],
+  "mounts": [
+    "source=${localEnv:HOME}/.bts/devcontainer-mounts/${devcontainerId},target=/home/bts,type=bind"
+  ],
+  "customizations": {
+    "vscode": {
+      "settings": {
+        "clangd.arguments": [
+          "--compile-commands-dir=${workspaceFolder}/build/clang/debug"
+        ]
+      },
+      "extensions": [
+        "eamodio.gitlens",
+        "llvm-vs-code-extensions.vscode-clangd",
+        "ms-vscode.cmake-tools",
+        "ms-vscode.cpptools"
+      ]
+    }
+  }
+}

.devcontainer/emumba/install_emumba-deribit-connector.sh

@@ -0,0 +1,4 @@
+#!/usr/bin/env bash
+
+this_dir="$(realpath "$(dirname "$(readlink -f "${BASH_SOURCE[0]}")")")"
+sudo dpkg -i "$this_dir/emumba-deribit-connector-3.3.1-Linux.LICENSE_DISABLED.deb"

.editorconfig

@@ -207,23 +207,17 @@ dotnet_naming_symbols.parameters.applicable_accessibilities = public,internal,pr
 dotnet_naming_symbols.private_symbols.applicable_kinds = property,method,field,event,delegate
 dotnet_naming_symbols.private_symbols.applicable_accessibilities = protected,private
 
-# local symbols
-dotnet_naming_symbols.local_symbols.applicable_kinds = local
-
-# parameter symbols
-dotnet_naming_symbols.parameter_symbols.applicable_kinds = parameter
-
 # Naming styles
 
-dotnet_naming_style.pascal_case.required_prefix =
-dotnet_naming_style.pascal_case.required_suffix =
-dotnet_naming_style.pascal_case.word_separator =
-dotnet_naming_style.pascal_case.capitalization = pascal_case
+dotnet_naming_style.snake_case.required_prefix =
+dotnet_naming_style.snake_case.required_suffix =
+dotnet_naming_style.snake_case.word_separator = _
+dotnet_naming_style.snake_case.capitalization = all_lower
 
-dotnet_naming_style.camel_case.required_prefix =
-dotnet_naming_style.camel_case.required_suffix =
-dotnet_naming_style.camel_case.word_separator =
-dotnet_naming_style.camel_case.capitalization = camel_case
+dotnet_naming_style.private_snake_case.required_prefix = _
+dotnet_naming_style.private_snake_case.required_suffix =
+dotnet_naming_style.private_snake_case.word_separator = _
+dotnet_naming_style.private_snake_case.capitalization = all_lower
 
 dotnet_naming_style.user_types.required_prefix =
 dotnet_naming_style.user_types.required_suffix =
@@ -235,10 +229,6 @@ dotnet_naming_style.interface.required_suffix =
 dotnet_naming_style.interface.word_separator =
 dotnet_naming_style.interface.capitalization = pascal_case
 
-dotnet_naming_style.local.capitalization = camel_case
-
-dotnet_naming_style.parameter.capitalization = camel_case
-
 # rules
 dotnet_naming_rule.user_types.symbols = user_types
 dotnet_naming_rule.user_types.style = user_types
@@ -248,18 +238,14 @@ dotnet_naming_rule.interfaces.symbols = interface
 dotnet_naming_rule.interfaces.style = interface_style
 dotnet_naming_rule.interfaces.severity = suggestion
 
-dotnet_naming_rule.public_members.symbols = public_symbols
-dotnet_naming_rule.public_members.style = pascal_case
-dotnet_naming_rule.public_members.severity = suggestion
+dotnet_naming_rule.public_members_snake_case.symbols = public_symbols
+dotnet_naming_rule.public_members_snake_case.style = snake_case
+dotnet_naming_rule.public_members_snake_case.severity = suggestion
 
-dotnet_naming_rule.private_members.symbols = private_symbols
-dotnet_naming_rule.private_members.style = camel_case
-dotnet_naming_rule.private_members.severity = suggestion
+dotnet_naming_rule.private_members_snake_case.symbols = private_symbols
+dotnet_naming_rule.private_members_snake_case.style = private_snake_case
+dotnet_naming_rule.private_members_snake_case.severity = suggestion
 
-dotnet_naming_rule.variables_are_camel_case.severity = suggestion
-dotnet_naming_rule.variables_are_camel_case.symbols = local_symbols
-dotnet_naming_rule.variables_are_camel_case.style = local
-
-dotnet_naming_rule.parameters.symbols = parameter_symbols
-dotnet_naming_rule.parameters.style = parameter
+dotnet_naming_rule.parameters.symbols = parameters
+dotnet_naming_rule.parameters.style = snake_case
 dotnet_naming_rule.parameters.severity = suggestion

.gitignore

@@ -54,6 +54,6 @@ trace_data/
 /src/Spark.Admin.WebApp/src/bin/
 **/CMakeDeps.cmake
 **/CMakeDeps_win.cmake
-**/.devcontainer
+.devcontainer/
 *.Generated.cs
 *.lst

CMakePresets.json

@@ -29,8 +29,8 @@
         "CMAKE_TOOLCHAIN_FILE": "${sourceDir}/vcpkg/scripts/buildsystems/vcpkg.cmake",
         "EXTERNALS_ROOT": "${sourceDir}/externals/windows",
         "CONFIG_DEFAULTS_PATH": "config/profiles/default/*.conf",
-        "DOTNET_BINARY_DIR": "${sourceDir}/build/$<CONFIG>/bin/net8.0",
-        "DOTNET_WINDOWS_BINARY_DIR": "${sourceDir}/build/$<CONFIG>/bin/net8.0-windows"
+        "DOTNET_BINARY_DIR": "${sourceDir}/build/$<CONFIG>/bin/net7.0",
+        "DOTNET_WINDOWS_BINARY_DIR": "${sourceDir}/build/$<CONFIG>/bin/net7.0-windows"
       }
     },
 
@@ -113,8 +113,8 @@
       "description": "Debug build compiled w/ gcc",
       "binaryDir": "${sourceDir}/build/gcc/debug",
       "cacheVariables": {
-        "CMAKE_C_COMPILER": "gcc",
-        "CMAKE_CXX_COMPILER": "g++",
+        "CMAKE_C_COMPILER": "gcc-12",
+        "CMAKE_CXX_COMPILER": "g++-12",
         "CMAKE_CXX_FLAGS_DEBUG": "-g -fPIC -Wall -pedantic -Wextra -Werror -Wno-missing-braces -Wno-ignored-qualifiers --std=c++20 -fdiagnostics-color -Wno-stringop-overread -DDEBUG",
         "CMAKE_INSTALL_PREFIX": "${sourceDir}/install/gcc/debug/sparkd"
       }
@@ -197,7 +197,7 @@
         "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",
-        "DOTNET_BINARY_DIR": "${sourceDir}/build/$<CONFIG>/bin/net8.0"
+        "DOTNET_BINARY_DIR": "${sourceDir}/build/$<CONFIG>/bin/net7.0"
       }
     },
 

docker/sparkd/dev/Dockerfile

@@ -1,74 +1,65 @@
-FROM ubuntu:22.04
+FROM ubuntu:latest
 
 ARG DEBIAN_FRONTEND=noninteractive
+ENV TZ=America/New_York
 
-# Note installations that take a while (more than 10s)
+# light deps (should be quick to download/install)
+RUN apt-get update && apt-get install -y \
+    ca-certificates \
+    curl \
+    gnupg \
+    liblttng-ust-dev \
+    libpcap0.8-dev \
+    locales \
+    ninja-build \
+    software-properties-common \
+    sqlite3 \
+    tzdata
 
-RUN apt-get update
-RUN apt-get install -y ca-certificates
-RUN apt-get install -y ccache
-RUN apt-get install -y curl
-RUN apt-get install -y fish
-RUN apt-get install -y gdb
-# git-all: ~250s
-RUN apt-get install -y git-all
-RUN apt-get install -y gnupg
-# liblttng-ust-dev: ~30s
-RUN apt-get install -y liblttng-ust-dev
-RUN apt-get install -y libssh2-1-dev
-RUN apt-get install -y locales
-RUN apt-get install -y ninja-build
-# openssh-server: ~40s
-RUN apt-get install -y openssh-server
-RUN apt-get install -y pkg-config
-RUN apt-get install -y software-properties-common
-RUN apt-get install -y sudo
-RUN apt-get install -y tzdata
-RUN apt-get install -y vim
-RUN apt-get install -y zip
+# clang
+RUN apt-get update && apt-get install -y \
+    clang-13 \
+    clang-format-13 \
+    clangd-13 \
+    clang-15 \
+    clang-format-15 \
+    clangd-15
 
-# Python: ~30s
-RUN apt-get install -y \
+# g++
+RUN apt-get update && apt-get install -y \
+    g++-11 \
+    g++-12
+
+# python
+RUN apt-get update && apt-get install -y \
     python3-pip \
     python3-venv \
     && python3 -m pip install --upgrade pip
 
-# GCC
-ARG gcc_major=13
-RUN add-apt-repository ppa:ubuntu-toolchain-r/test \
-    && apt-get update \
-    && apt-get install -y g++-$gcc_major
+# dotnet
+RUN apt-get update && apt-get install -y \
+    dotnet7
 
-# Clang
-ARG clang_major=17
-RUN curl -fsSL https://apt.llvm.org/llvm-snapshot.gpg.key 2> /dev/null \
-    | gpg --dearmor - \
-    | tee /usr/share/keyrings/llvm-snapshot.gpg > /dev/null \
-    && echo "deb [signed-by=/usr/share/keyrings/llvm-snapshot.gpg] http://apt.llvm.org/$(lsb_release -cs)/ llvm-toolchain-$(lsb_release -cs)-$clang_major main" \
-    | tee -a "/etc/apt/sources.list.d/llvm.list" \
-    && apt-get update \
-    && apt-get install -y \
-    clang-$clang_major \
-    clang-format-$clang_major \
-    clangd-$clang_major
+# ssh
+RUN apt-get update && apt-get install -y \
+    libssh2-1-dev \
+    openssh-server
 
-# CMake
-RUN curl -fsSL https://apt.kitware.com/keys/kitware-archive-latest.asc 2> /dev/null \
+# cmake
+RUN \
+    curl -fsSL https://apt.kitware.com/keys/kitware-archive-latest.asc 2> /dev/null \
     | gpg --dearmor - \
     | tee /usr/share/keyrings/kitware-archive-keyring.gpg > /dev/null \
     && echo "deb [signed-by=/usr/share/keyrings/kitware-archive-keyring.gpg] https://apt.kitware.com/ubuntu/ $(lsb_release -cs) main" \
     | tee /etc/apt/sources.list.d/kitware.list > /dev/null \
     && apt-get update \
+    && rm /usr/share/keyrings/kitware-archive-keyring.gpg \
+    && apt-get install -y kitware-archive-keyring \
+    && echo "deb [signed-by=/usr/share/keyrings/kitware-archive-keyring.gpg] https://apt.kitware.com/ubuntu/ $(lsb_release -cs)-rc main" \
+    | tee -a /etc/apt/sources.list.d/kitware.list >/dev/null \
     && apt-get install -y cmake
 
-# Dotnet
-RUN curl -fsSLO "https://packages.microsoft.com/config/ubuntu/$(lsb_release -rs)/packages-microsoft-prod.deb" \
-    && dpkg -i packages-microsoft-prod.deb \
-    && rm packages-microsoft-prod.deb \
-    && apt-get update \
-    && apt-get install -y dotnet-sdk-8.0
-
-# Node
+# node
 ARG node_major=18
 RUN mkdir -p /etc/apt/keyrings \
     && curl -fsSL https://deb.nodesource.com/gpgkey/nodesource-repo.gpg.key \
@@ -78,35 +69,60 @@ RUN mkdir -p /etc/apt/keyrings \
     && apt-get update \
     && apt-get install -y nodejs
 
-# Emumba deps
+# ccache is done here so that ccache sees clang++ installed, not clang-10
+RUN apt-get update && apt-get install -y \
+    ccache 
+
+# emumba (light deps)
 RUN apt-get update && apt-get install -y \
     build-essential \
     doxygen \
+    python3-sphinx \
     graphviz \
     libgtest-dev \
     libssl-dev \
-    pkg-config \
-    python3-sphinx \
     rapidjson-dev \
-    zlib1g-dev
+    zlib1g-dev \
+    pkg-config
 
-# Set up default executables (update-alternatives)
-RUN update-alternatives --install /usr/bin/clang clang /usr/bin/clang-$clang_major 100; \
-    update-alternatives --install /usr/bin/clang++ clang++ /usr/bin/clang++-$clang_major 100; \
-    update-alternatives --install /usr/bin/clang-format clang-format /usr/bin/clang-format-$clang_major 100; \
-    update-alternatives --install /usr/bin/clangd clangd /usr/bin/clangd-$clang_major 100; \
-    update-alternatives --install /usr/bin/gcc gcc /usr/bin/gcc-$gcc_major 100; \
-    update-alternatives --install /usr/bin/g++ g++ /usr/bin/g++-$gcc_major 100
+# emumba (boost)
+RUN apt-get update && apt-get install -y \
+    libboost-filesystem-dev \
+    libboost-program-options-dev \
+    libboost-test-dev \
+    libboost-date-time-dev
+
+# dev utils
+RUN apt-get update && apt-get install -y \ 
+    fish \
+    git-all \
+    sudo \
+    vim \
+    wget
+
+# set up default executables (update-alternatives)
+RUN \
+    update-alternatives --install /usr/bin/clang++ clang++ /usr/bin/clang++-13 100; \
+    update-alternatives --install /usr/bin/clang clang /usr/bin/clang-13 100; \
+    update-alternatives --install /usr/bin/clang-format clang-format /usr/bin/clang-format-13 100; \
+    update-alternatives --install /usr/bin/clangd clangd /usr/bin/clangd-13 100; \
+    update-alternatives --install /usr/bin/g++ g++ /usr/bin/g++-11 100; \
+    update-alternatives --install /usr/bin/gcc gcc /usr/bin/gcc-11 100
 
 # Add compiler symlinks for ccache 
-RUN ln -s /usr/bin/ccache /usr/local/bin/clang; \
+RUN \
+    ln -s /usr/bin/ccache /usr/local/bin/clang; \
     ln -s /usr/bin/ccache /usr/local/bin/clang++; \
-    ln -s /usr/bin/ccache /usr/local/bin/clang-$clang_major; \
-    ln -s /usr/bin/ccache /usr/local/bin/clang++-$clang_major; \
+    ln -s /usr/bin/ccache /usr/local/bin/clang-13; \
+    ln -s /usr/bin/ccache /usr/local/bin/clang++-13; \
+    ln -s /usr/bin/ccache /usr/local/bin/clang-15; \
+    ln -s /usr/bin/ccache /usr/local/bin/clang++-15; \
     ln -s /usr/bin/ccache /usr/local/bin/gcc; \
     ln -s /usr/bin/ccache /usr/local/bin/g++; \
-    ln -s /usr/bin/ccache /usr/local/bin/gcc-$gcc_major; \
-    ln -s /usr/bin/ccache /usr/local/bin/g++-$gcc_major
+    ln -s /usr/bin/ccache /usr/local/bin/gcc-11; \
+    ln -s /usr/bin/ccache /usr/local/bin/g++-11; \
+    ln -s /usr/bin/ccache /usr/local/bin/gcc-12; \
+    ln -s /usr/bin/ccache /usr/local/bin/g++-12
 
 RUN locale-gen en_US.UTF-8
 
@@ -114,7 +130,8 @@ ARG docker_user="bts"
 ARG docker_uid="1000"
 ARG docker_pass="bts"
 
-RUN groupadd -g "$docker_uid" "$docker_user" \
+RUN \
+    groupadd -g "$docker_uid" "$docker_user" \
     && useradd \
     -m \
     -u "$docker_uid" \

global.json

@@ -0,0 +1,6 @@
+{
+  "sdk": {
+    "version": "6.0.200",
+    "rollForward": "latestMajor"
+  }
+}

playground-1.mongodb.js

@@ -1,45 +0,0 @@
-/* global use, db */
-// MongoDB Playground
-// To disable this template go to Settings | MongoDB | Use Default Template For Playground.
-// Make sure you are connected to enable completions and to be able to run a playground.
-// Use Ctrl+Space inside a snippet or a string literal to trigger completions.
-// The result of the last command run in a playground is shown on the results panel.
-// By default the first 20 documents will be returned with a cursor.
-// Use 'console.log()' to print to the debug output.
-// For more documentation on playgrounds please refer to
-// https://www.mongodb.com/docs/mongodb-vscode/playgrounds/
-
-// Select the database to use.
-use('mongodbVSCodePlaygroundDB');
-
-// Insert a few documents into the sales collection.
-db.getCollection('sales').insertMany([
-    { 'item': 'abc', 'price': 10, 'quantity': 2, 'date': new Date('2014-03-01T08:00:00Z') },
-    { 'item': 'jkl', 'price': 20, 'quantity': 1, 'date': new Date('2014-03-01T09:00:00Z') },
-    { 'item': 'xyz', 'price': 5, 'quantity': 10, 'date': new Date('2014-03-15T09:00:00Z') },
-    { 'item': 'xyz', 'price': 5, 'quantity': 20, 'date': new Date('2014-04-04T11:21:39.736Z') },
-    { 'item': 'abc', 'price': 10, 'quantity': 10, 'date': new Date('2014-04-04T21:23:13.331Z') },
-    { 'item': 'def', 'price': 7.5, 'quantity': 5, 'date': new Date('2015-06-04T05:08:13Z') },
-    { 'item': 'def', 'price': 7.5, 'quantity': 10, 'date': new Date('2015-09-10T08:43:00Z') },
-    { 'item': 'abc', 'price': 10, 'quantity': 5, 'date': new Date('2016-02-06T20:20:13Z') },
-]);
-
-// Run a find command to view items sold on April 4th, 2014.
-const salesOnApril4th = db.getCollection('sales').find({
-    date: { $gte: new Date('2014-04-04'), $lt: new Date('2014-04-05') }
-}).count();
-
-// Print a message to the output window.
-console.log(`${salesOnApril4th} sales occurred in 2014.`);
-
-// Here we run an aggregation and open a cursor to the results.
-// Use '.toArray()' to exhaust the cursor to return the whole result set.
-// You can use '.hasNext()/.next()' to iterate through the cursor page by page.
-db.getCollection('sales').aggregate([
-    // Find all of the sales that occurred in 2014.
-    { $match: { date: { $gte: new Date('2014-01-01'), $lt: new Date('2015-01-01') } } },
-    // Group the total sales for each product.
-    { $group: { _id: '$item', totalSaleAmount: { $sum: { $multiply: ['$price', '$quantity'] } } } }
-]);
-
-

src/DataStreamSuite/ArithmeticExpressions/ArithmeticExpressions.csproj

@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>net8.0</TargetFramework>
+    <TargetFramework>net7.0</TargetFramework>
     <ImplicitUsings>enable</ImplicitUsings>
     <Nullable>enable</Nullable>
   </PropertyGroup>

src/DataStreamSuite/BaseUtilities/BaseUtilities.csproj

@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>net8.0</TargetFramework>
+    <TargetFramework>net7.0</TargetFramework>
     <ImplicitUsings>enable</ImplicitUsings>
     <Nullable>enable</Nullable>
   </PropertyGroup>

src/DataStreamSuite/BlueRegistry/BlueRegistry.csproj

@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>net8.0-windows</TargetFramework>
+    <TargetFramework>net7.0-windows</TargetFramework>
     <ImplicitUsings>enable</ImplicitUsings>
     <Nullable>enable</Nullable>
     <UseWindowsForms>true</UseWindowsForms>

src/DataStreamSuite/BooleanExpressions/BooleanExpressionTokens.lex

@@ -42,6 +42,7 @@ OpenParenthesis          \(
 CloseParenthesis         \)
 Comma                    ,
 Negate                   '!'
+MapsTo                   ':'
 IsOfType                 '/'
 
 %%
@@ -97,6 +98,10 @@ IsOfType                 '/'
    return (int)Token.NEGATE;
 }
 
+{MapsTo} {
+   return (int)Token.MAPS_TO;
+}
+
 {Equal} {
    return (int)Token.EQUAL;
 }

src/DataStreamSuite/BooleanExpressions/BooleanExpressions.csproj

@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>net8.0</TargetFramework>
+    <TargetFramework>net7.0</TargetFramework>
     <ImplicitUsings>enable</ImplicitUsings>
     <Nullable>enable</Nullable>
   </PropertyGroup>

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

@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>net8.0</TargetFramework>
+    <TargetFramework>net7.0</TargetFramework>
     <ImplicitUsings>enable</ImplicitUsings>
     <Nullable>enable</Nullable>
   </PropertyGroup>

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

@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>net8.0</TargetFramework>
+    <TargetFramework>net7.0</TargetFramework>
     <ImplicitUsings>enable</ImplicitUsings>
     <Nullable>enable</Nullable>
   </PropertyGroup>

src/DataStreamSuite/Bts.DataStream.Websocket/Bts.DataStream.Websocket.csproj

@@ -1,15 +0,0 @@
-<Project Sdk="Microsoft.NET.Sdk">
-
-  <PropertyGroup>
-    <TargetFramework>net8.0</TargetFramework>
-    <ImplicitUsings>enable</ImplicitUsings>
-    <Nullable>enable</Nullable>
-  </PropertyGroup>
-
-  <ItemGroup>
-    <ProjectReference Include="..\..\client\spark_websocket\spark_websocket.csproj" />
-    <ProjectReference Include="..\DataStreamExpressions\DataStreamExpressions.csproj" />
-    <ProjectReference Include="..\..\client\spark_core\spark_core.csproj" />
-  </ItemGroup>
-
-</Project>

src/DataStreamSuite/Bts.DataStream.Websocket/ClientSubscription.cs

@@ -1,9 +0,0 @@
-namespace Bts.DataStream.Websocket;
-
-class ClientSubscription(WebsocketClientID id, SubscriptionParams @params, IDisposable dispose) : IDisposable {
-   public SubscriptionParams Params => @params;
-   public WebsocketClientID Id => id;
-
-   public void Dispose() =>
-      dispose.Dispose();
-}

src/DataStreamSuite/Bts.DataStream.Websocket/DataSync.cs

@@ -1,301 +0,0 @@
-namespace Bts.DataStream.Websocket;
-
-using BCG;
-
-using bts;
-using bts.api.core;
-using bts.collections;
-using bts.websocket_core.json_rpc;
-
-using Bts.DataStreamExpressions;
-
-using mbts.utils;
-
-using Spark.Core.Disposables;
-using Spark.Core.Json;
-
-using System.Buffers;
-using System.Reactive.Subjects;
-using System.Text;
-using System.Text.Json;
-using System.Text.Json.Nodes;
-
-/// <summary>
-/// Represents an I/O model (<see cref="ISubject{TSource, TResult}"/>), that accepts websocket
-/// requests (from clients) as input, and emits data/notifications (to clients) as output.
-/// This class's chief role is managing data subscriptions to sparkd on the clients' behalf.
-/// </summary>
-public class DataSync(JsonSerializerOptions? serializerOpts = null) :
-   ISubject<WebsocketConnectionUpdate, IEnumerable<WebsocketOutgoingMessage>> {
-   protected readonly object lockObj = new();
-   readonly JsonSerializerOptions serializerOpts = serializerOpts ?? JsonSerializerOptions.Default;
-   readonly Dictionary<WebsocketClientID, List<ClientSubscription>> clients = [];
-
-   event Action<IEnumerable<WebsocketOutgoingMessage>>? requestSend;
-
-   public void OnCompleted() =>
-      Log.Api.info("DataSync incoming request stream has completed.");
-
-   public void OnError(Exception error) =>
-      Log.Api.error($"DataSync error: {error}");
-
-   public void OnNext(WebsocketConnectionUpdate value) {
-      switch (value.Type) {
-         case WebsocketConnectionUpdateType.IncomingMessage:
-            onIncomingMessage(value.IncomingMessage);
-            break;
-         case WebsocketConnectionUpdateType.Connect:
-            onConnect(value.Connect);
-            break;
-         case WebsocketConnectionUpdateType.Disconnect:
-            onDisconnect(value.Disconnect);
-            break;
-         default:
-            Log.assert(false, $"Unexpected WebsocketConnectionUpdate type: {value.Type}");
-            break;
-      }
-   }
-
-   public IDisposable Subscribe(IObserver<IEnumerable<WebsocketOutgoingMessage>> observer) {
-      lock (lockObj) {
-         requestSend += observer.OnNext;
-         return Disposable.Create(Dispose);
-      }
-      void Dispose() {
-         lock (lockObj) {
-            requestSend -= observer.OnNext;
-         }
-      }
-   }
-
-   static JsonRpcId? extractRpcId(string messageBody) {
-      try {
-         return JsonNode.Parse(messageBody)
-            ?.AsObject()
-            ?.GetValueOrDefault("id")
-            ?.Deserialize<JsonRpcId>();
-      } catch {
-         return null;
-      }
-   }
-
-   static string getRpcNotification(DataPacket dp) {
-      using (var buffer = new MemoryStream())
-      using (var writer = new Utf8JsonWriter(buffer))
-      using (writer.WriteObject()) {
-         writer.WriteString("method", "subscription");
-         using (writer.WriteObject("params")) {
-            writer.Write("tableName", dp.schema.tableName);
-            writer.Write("columns", dp.schema.columnInfo);
-            var cellJsonFactories = dp.schema.columnInfo.Select(getCellJsonFactory).ToList();
-            using (writer.WriteArray("added")) {
-               foreach (IBlueRow row in (dp.addedRows?.Cast<IBlueRow>()).empty_if_null()) {
-                  using (writer.WriteObject()) {
-                     for (int i = 0; i < cellJsonFactories.Count; i++) {
-                        writer.Write(dp.schema.columnInfo[i].colName, cellJsonFactories[i](row));
-                     }
-                  }
-               }
-            }
-            using (writer.WriteArray("deleted")) {
-               foreach (IBlueRow row in (dp.deletedRows?.Cast<IBlueRow>()).empty_if_null()) {
-                  using (writer.WriteObject()) {
-                     for (int i = 0; i < cellJsonFactories.Count; i++) {
-                        writer.Write(dp.schema.columnInfo[i].colName, cellJsonFactories[i](row));
-                     }
-                  }
-               }
-            }
-         }
-         writer.WriteString("jsonrpc", "2.0");
-         writer.Flush();
-         return Encoding.UTF8.GetString(buffer.ToArray());
-      }
-   }
-
-   static Func<IBlueRow, JsonNode?> getCellJsonFactory(ColumnInfo colInfo) {
-      var t = colInfo.colType;
-      if (t == typeof(int)) {
-         return NullCheckWrapper(v => (int)v);
-      }
-      if (t == typeof(uint)) {
-         return NullCheckWrapper(v => (uint)v);
-      }
-      if (t == typeof(long)) {
-         return NullCheckWrapper(v => (long)v);
-      }
-      if (t == typeof(ulong)) {
-         return NullCheckWrapper(v => (ulong)v);
-      }
-      if (t == typeof(short)) {
-         return NullCheckWrapper(v => (short)v);
-      }
-      if (t == typeof(ushort)) {
-         return NullCheckWrapper(v => (ushort)v);
-      }
-      if (t == typeof(double)) {
-         return NullCheckWrapper(v => (double)v);
-      }
-      if (t == typeof(float)) {
-         return NullCheckWrapper(v => (float)v);
-      }
-      if (t == typeof(bool)) {
-         return NullCheckWrapper(v => (bool)v);
-      }
-      return NullCheckWrapper(v => (string)v);
-
-      Func<IBlueRow, JsonNode?> NullCheckWrapper(Func<object, JsonNode> toJson) =>
-         r => {
-            var obj = r[colInfo.colNo];
-            if (obj is null) {
-               return null;
-            }
-            return toJson(obj);
-         };
-   }
-
-   void onConnect(WebsocketConnectNotification notification) {
-      var id = notification.Id;
-      lock (lockObj) {
-         clients.Add(id, []);
-      }
-      Log.Api.info($"DataStreamWebsocketDataSync client connected. clientId: {notification.Id}");
-      if (notification.Message is not null) {
-         onIncomingMessage(notification.Message);
-      }
-   }
-
-   void onDisconnect(WebsocketDisconnectNotification notification) {
-      Log.Api.warn($"DataStreamWebsocketDataSync client disconnected. clientId: {notification.Id}");
-      unsubscribeAll(notification.Id);
-      clients.Remove(notification.Id);
-   }
-
-   void onIncomingMessage(WebsocketIncomingMessage message) {
-      var id = message.sender_client_id;
-      if (!JsonRpcRequest.TryDeserialize(message, out var req, out var err)) {
-         onBadRequest(message, err);
-         return;
-      }
-      switch (req.Method!.ToLower()) {
-         case "subscribe":
-            subscribe(id, req);
-            break;
-         case "publish":
-            Log.Api.error("DataStreamWebsocket api 'publish' not implemented.");
-            // TODO
-            break;
-         case "unsubscribe":
-            unsubscribe(id, req);
-            break;
-         case "unsubscribe_all":
-            unsubscribeAll(id);
-            break;
-         default:
-            Log.Api.error($"Received request of unknown type: {req}");
-            break;
-      }
-   }
-
-   void sendResponse<T>(WebsocketClientID id, JsonRpcId rpcId, T rpcParams) {
-      var rpcRes = JsonRpcResponse.Create(rpcId, rpcParams);
-      var rpcResStr = JsonSerializer.Serialize(rpcRes, serializerOpts);
-      send([new(id, rpcResStr)]);
-   }
-
-   void sendError<T>(WebsocketClientID id, JsonRpcId rpcId, JsonRpcError<T> error) {
-      var rpcRes = JsonRpcResponse.CreateError(rpcId, error);
-      var rpcResStr = JsonSerializer.Serialize(rpcRes, serializerOpts);
-      send([new(id, rpcResStr)]);
-   }
-
-   bool send(IEnumerable<WebsocketOutgoingMessage> messages) {
-      lock (lockObj) {
-         if (requestSend is null) {
-            Log.Api.warn(
-               $"Unable to send message(s) because '{nameof(requestSend)}' handler is null");
-            return false;
-         }
-         requestSend(messages);
-         return true;
-      }
-   }
-
-   void subscribe(WebsocketClientID id, JsonRpcRequest<JsonObject?> req) {
-      var subParams = req.Params!.Deserialize<SubscriptionParams>()!;
-      var exp = DataStreamExpressionsInterpreter.Evaluate(subParams.Query!);
-      var stream = exp.getView(new Dictionary<string, StatementExpression>(0));
-      var sub = new ClientSubscription(id, subParams, Disposable.Create(Dispose));
-      lock (lockObj) {
-         clients[id].Add(sub);
-         sendResponse(id, req.Id!.Value, req.Params);
-         stream.onChange += OnChange;
-      }
-
-      void OnChange(object? newValue) {
-         var dp = ExceptionAssert.of_type<DataPacket>(newValue);
-         var notif = getRpcNotification(dp);
-         send([new(id, notif)]);
-      }
-
-      void Dispose() =>
-         stream.onChange -= OnChange;
-   }
-
-   void unsubscribe(WebsocketClientID id, JsonRpcRequest<JsonObject?> req) {
-      var subParams = req.Params!.Deserialize<SubscriptionParams>();
-      var subParamsStr = JsonSerializer.Serialize(subParams, serializerOpts);
-      // Minimize amount of code inside lock (just need it to find/remove the subscription)
-      List<ClientSubscription>? subs = null;
-      ClientSubscription? sub = null;
-      lock (lockObj) {
-         subs = clients.GetValueOrDefault(id);
-         subs?.TryRemoveFirst(s => s!.Params.Equals(subParams), out sub);
-      }
-      if (subs is null) {
-         // Didn't find client (log/throw).
-         var msg = $"Unable to unsubscribe: did not find client. Id: {id}.\nParams:\n{subParamsStr}";
-         Log.Api.error(msg);
-         throw new Exception(msg);
-      }
-      if (sub is null) {
-         // Found client, but didn't find subscription (log/throw).
-         var msg = $"Unable to unsubscribe: did not find the specified subscription. " +
-            $"Id: {id}. Request:\n{subParams}";
-         Log.Api.error(msg);
-         throw new Exception(msg);
-      }
-      // Found client and subscription (dispose/remove subscription).
-      Log.Api.info($"Unsubscribing client. Id: {id}.\nParams:\n{subParamsStr}");
-      sub.Dispose();
-   }
-
-   void unsubscribeAll(WebsocketClientID id) {
-      lock (lockObj) {
-         if (!clients.TryGetValue(id, out var subs)) {
-            throw new Exception(
-               $"Unable to unsubscribe: did not find client with id {id}");
-         }
-         subs.DisposeAll();
-         subs.Clear();
-      }
-   }
-
-   void onBadRequest(WebsocketIncomingMessage req, string? errorMsg) {
-      var rpcId = extractRpcId(req.message_body);
-      var logMsg = $"Recieved invalid request:\n{req.message_body}";
-      if (errorMsg is not null) {
-         logMsg += $"\n\n**Exception**\n{errorMsg}";
-      }
-      Log.Api.error(logMsg);
-      if (rpcId is null) {
-         return;
-      }
-      // Send error back to client
-      var rpcErr = JsonRpcError.Create(
-         (long)JsonRpcErrorCode.InvalidRequest,
-         $"Received invalid request: {errorMsg ?? "unknown error"}",
-         req.message_body);
-      sendError(req.sender_client_id, rpcId.Value, rpcErr);
-   }
-}

src/DataStreamSuite/Bts.DataStream.Websocket/JObjectExtensions.cs

@@ -1,34 +0,0 @@
-namespace Bts.DataStream.Websocket;
-
-using Newtonsoft.Json.Linq;
-
-using System.Diagnostics.CodeAnalysis;
-
-public static class JObjectExtensions {
-   public static bool TryParse<T>(
-      this JObject filter, string key, [MaybeNull] out T obj, [NotNullWhen(false)] out string? error) {
-      obj = default;
-      var value = filter.GetValueOrDefault(key)?.ToString();
-      if (value == null) {
-         error = $"{key} not present";
-         return true;
-      }
-      return WebsocketJsonParsers.TryParse(value, key, out obj, out error);
-   }
-
-   public static bool TryParse<T>(
-     this JObject filter, string key, out T result, [NotNullWhen(false)] out string? error, T defaultValue) {
-      var value = filter.GetValueOrDefault(key)?.ToString();
-      if (value == null) {
-         result = defaultValue;
-         error = $"{key} not present";
-         return true;
-      }
-      if (WebsocketJsonParsers.TryParse<T>(value, key, out var maybeRes, out error)) {
-         result = maybeRes ?? defaultValue;
-         return true;
-      }
-      result = defaultValue;
-      return false;
-   }
-}

src/DataStreamSuite/Bts.DataStream.Websocket/MultilineStringJsonConverter.cs

@@ -1,48 +0,0 @@
-namespace Bts.DataStream.Websocket;
-
-using Spark.Core;
-
-using System;
-using System.Text.Json;
-using System.Text.Json.Serialization;
-
-class MultilineStringJsonConverter : JsonConverter<string> {
-   public override string? Read(ref Utf8JsonReader reader, Type typeToConvert, JsonSerializerOptions options) {
-      if (typeToConvert != typeof(string)) {
-         throw new ArgumentException($"Unable to parse {typeToConvert}", nameof(typeToConvert));
-      }
-      return reader.TokenType switch {
-         JsonTokenType.String => StringImpl(ref reader),
-         JsonTokenType.StartArray => ArrayImpl(ref reader),
-         _ => throw new ArgumentException(
-            $"Unable to parse {typeof(SubscriptionParams)} from {reader.TokenType}"),
-      };
-
-      static string? StringImpl(ref Utf8JsonReader reader) =>
-         new(reader.GetString()!);
-
-      static string? ArrayImpl(ref Utf8JsonReader reader) {
-         var lines = new List<string>(2);
-         while (reader.Read()) {
-            switch (reader.TokenType) {
-               case JsonTokenType.String:
-                  lines.Add(reader.GetString()!);
-                  break;
-               case JsonTokenType.EndArray:
-                  return string.Join("\n", lines);
-            }
-         }
-         throw new JsonException(
-            $"Failed to parse {typeof(SubscriptionParams)} (did not reach end of array)");
-      }
-   }
-
-   public override void Write(Utf8JsonWriter writer, string value, JsonSerializerOptions options) {
-      var lines = value.Split("\n");
-      if (lines.Length < 2) {
-         writer.WriteRawValue(value);
-         return;
-      }
-      writer.WriteRawValue($"[{", ".join(lines)}]");
-   }
-}

src/DataStreamSuite/Bts.DataStream.Websocket/RequestType.cs

@@ -1,8 +0,0 @@
-namespace Bts.DataStream.Websocket;
-
-public enum RequestType {
-   Unspecified,
-   Subscribe,
-   Unsubscribe,
-   UnsubscribeAll,
-}

src/DataStreamSuite/Bts.DataStream.Websocket/Session.cs

@@ -1,25 +0,0 @@
-namespace Bts.DataStream.Websocket;
-
-using bts;
-
-using Google.Protobuf;
-
-using System.Text.Json;
-
-public static class Session {
-   static int sessionIdCounter;
-
-   public static async Task Start(
-      WebsocketServerConfig config, JsonSerializerOptions? opts) {
-      opts ??= JsonSerializerOptions.Default;
-      var sessionId = Interlocked.Increment(ref sessionIdCounter);
-      var gateway = new WebsocketClient(config);
-      var sync = new DataSync(opts);
-      using (gateway.Subscribe(sync))
-      using (sync.Subscribe(gateway)) {
-         Log.Api.info($"Starting DataStream Websocket Session {sessionId}");
-         Log.Api.info($"DataStream Websocket Session {sessionId} config:\n{JsonFormatter.Default.Format(config)}");
-         await gateway.ConnectAsync();
-      }
-   }
-}

src/DataStreamSuite/Bts.DataStream.Websocket/SubscriptionParams.cs

@@ -1,112 +0,0 @@
-namespace Bts.DataStream.Websocket;
-
-using bts.utils;
-
-using Spark.Core;
-using Spark.Core.Json;
-
-using System;
-using System.Diagnostics.CodeAnalysis;
-using System.Text.Json;
-using System.Text.Json.Serialization;
-
-public class SubscriptionParams(string? query = null) : IEquatable<SubscriptionParams> {
-   static class PropNames {
-      public const string QUERY = "query";
-   }
-
-   // Serializer supports plain string, or an array of lines for convenience
-   [MaybeNull]
-   [JsonPropertyName(PropNames.QUERY)]
-   [JsonConverter(typeof(MultilineStringJsonConverter))]
-   public string? Query { get; set; } = query;
-
-   public bool Equals(SubscriptionParams? other) =>
-      other is not null &&
-      // Not the most elegant equals impl, but it'll work
-      Query.safe_equals(other.Query, (a, b) => a?.ToString() == b?.ToString());
-
-   class SubscriptionParamsConverter : JsonConverter<SubscriptionParams> {
-      public override bool CanConvert(Type typeToConvert) =>
-         typeToConvert == typeof(SubscriptionParams);
-
-      public override SubscriptionParams Read(
-         ref Utf8JsonReader reader, Type typeToConvert, JsonSerializerOptions options) {
-         if (typeToConvert != typeof(SubscriptionParams)) {
-            throw new ArgumentException($"Unable to parse {typeToConvert}", nameof(typeToConvert));
-         }
-         return read(ref reader);
-      }
-
-      static SubscriptionParams read(ref Utf8JsonReader reader) {
-         return reader.TokenType switch {
-            JsonTokenType.String => StringImpl(ref reader),
-            JsonTokenType.StartArray => ArrayImpl(ref reader),
-            JsonTokenType.StartObject => ObjectImpl(ref reader),
-            _ => throw new ArgumentException(
-               $"Unable to parse {typeof(SubscriptionParams)} from {reader.TokenType}"),
-         };
-
-         static SubscriptionParams StringImpl(ref Utf8JsonReader reader) =>
-            new(reader.GetString()!);
-
-         static SubscriptionParams ArrayImpl(ref Utf8JsonReader reader) {
-            var lines = new List<string>(2);
-            while (reader.Read()) {
-               switch (reader.TokenType) {
-                  case JsonTokenType.String:
-                     lines.Add(reader.GetString()!);
-                     break;
-                  case JsonTokenType.EndArray:
-                     return new("\n".join(lines));
-               }
-            }
-            throw new JsonException(
-               $"Failed to parse {typeof(SubscriptionParams)} (did not reach end of array)");
-         }
-
-         static SubscriptionParams ObjectImpl(ref Utf8JsonReader reader) {
-            var lines = new List<string>(2);
-            while (reader.Read()) {
-               switch (reader.TokenType) {
-                  case JsonTokenType.PropertyName:
-                     var propName = reader.GetString()!;
-                     if (propName == PropNames.QUERY) {
-                        switch (reader.TokenType) {
-                           case JsonTokenType.StartArray:
-                              return ArrayImpl(ref reader);
-                           case JsonTokenType.String:
-                              return StringImpl(ref reader);
-                        }
-                     }
-                     break;
-                  case JsonTokenType.String:
-                     lines.Add(reader.GetString()!);
-                     break;
-                  case JsonTokenType.EndArray:
-                     return new("\n".join(lines));
-               }
-            }
-            throw new JsonException(
-               $"Failed to parse {typeof(SubscriptionParams)} (did not reach end of array)");
-         }
-      }
-
-      public override void Write(
-         Utf8JsonWriter writer, SubscriptionParams value, JsonSerializerOptions options) {
-         var q = value.Query;
-         var lines = q?.Split("\n");
-         if (lines is null || lines.Length < 2) {
-            writer.WriteString(PropNames.QUERY, value.Query);
-            return;
-         }
-         writer.WriteArray(PropNames.QUERY, lines);
-      }
-   }
-
-   public override bool Equals(object? obj) =>
-      Equals(obj as SubscriptionParams);
-
-   public override int GetHashCode() =>
-      Query?.Length ?? typeof(SubscriptionParams).GetHashCode();
-}

src/DataStreamSuite/Bts.DataStream.Websocket/Usings.cs

@@ -1,5 +0,0 @@
-global using bts.websocket_core;
-
-global using System;
-
-global using System.Collections.Immutable;

src/DataStreamSuite/Bts.DataStream.Websocket/ViewStreamUpdate.cs

@@ -1,41 +0,0 @@
-#nullable enable
-using BCG;
-
-using Spark.Core.Json;
-
-using System;
-using System.Collections.Generic;
-using System.Linq;
-using System.Text.Json;
-using System.Text.Json.Serialization;
-
-namespace Bts.DataStreamCore;
-
-class ViewStreamUpdate {
-   [JsonPropertyName("tableName")]
-   public string? TableName { get; set; }
-
-   [JsonPropertyName("columns")]
-   public List<ColumnInfo>? Columns { get; set; }
-
-   [JsonPropertyName("addedRows")]
-   public List<Dictionary<string, object?>>? AddedRows { get; set; }
-
-   [JsonPropertyName("deletedRows")]
-   public List<Dictionary<string, object?>>? DeletedRows { get; set; }
-
-   public DataPacket ToDataPacket(BlueTable state, bool applyChanges = true) {
-      var schema = new BlueTableSchema([.. Columns!], TableName);
-      var addedRowsTable = new BlueTable(schema);
-      var deletedRowsTable = new BlueTable(schema);
-      if (applyChanges) {
-         state.deleteRows(deletedRowsTable);
-         state.addRows(addedRowsTable);
-      }
-      return new(state, addedRowsTable, deletedRowsTable);
-   }
-
-   public static string ToJson() {
-      return "";
-   }
-}

src/DataStreamSuite/Bts.DataStream.WebsocketServer/Bts.DataStream.WebsocketServer.csproj

@@ -1,18 +0,0 @@
-<Project Sdk="Microsoft.NET.Sdk">
-
-  <PropertyGroup>
-    <OutputType>Exe</OutputType>
-    <TargetFramework>net8.0</TargetFramework>
-    <ImplicitUsings>enable</ImplicitUsings>
-    <Nullable>enable</Nullable>
-  </PropertyGroup>
-
-  <ItemGroup>
-    <PackageReference Include="System.CommandLine" Version="2.0.0-beta4.22272.1" />
-  </ItemGroup>
-
-  <ItemGroup>
-    <ProjectReference Include="..\Bts.DataStream.Websocket\Bts.DataStream.Websocket.csproj" />
-  </ItemGroup>
-
-</Project>

src/DataStreamSuite/Bts.DataStream.WebsocketServer/DataStreamWebsocketServer.conf

@@ -1,7 +0,0 @@
-{
-  "host": "localhost",
-  "port": 8080,
-  "scheme": "ws",
-  "default_end_point": "/",
-  "keep_alive_interval_secs": 1
-}

src/DataStreamSuite/Bts.DataStream.WebsocketServer/Program.cs

@@ -1,76 +0,0 @@
-using bts.api.core;
-
-using Bts.DataStream.Websocket;
-
-using Google.Protobuf;
-
-using System.CommandLine.Parsing;
-using System.Text.Json;
-
-static WebsocketServerConfig readConfigFile(string path) {
-   using var fs = File.OpenRead(path);
-   using var sr = new StreamReader(fs);
-   return JsonParser.Default.Parse<WebsocketServerConfig>(sr);
-}
-
-static WebsocketServerConfig? readConfigArg(ArgumentResult result) {
-   var path = result.Tokens.Select(t => t.Value).FirstOrDefault() ?? string.Empty;
-   return readConfigFile(path);
-}
-
-static WebsocketServerConfig getDefaultConfig() {
-   const string defaultCfgPath = "DataStreamWebsocketServer.conf";
-   if (File.Exists(defaultCfgPath)) {
-      return readConfigFile(defaultCfgPath);
-   }
-   return new() {
-      Scheme = "http",
-      Host = "localhost",
-      Port = 8080,
-      DefaultEndPoint = "/",
-      KeepAliveIntervalSecs = 1
-   };
-}
-   
-static async Task run(
-   WebsocketServerConfig? wssConfig, string user, string password, string? sparkdConfigSource) {
-   var opts = new JsonSerializerOptions(JsonSerializerDefaults.Web);
-   wssConfig ??= getDefaultConfig();
-   Console.WriteLine("Starting DataStreamWebsocketServer...");
-   var serviceCtx = ServiceContext.create(sparkdConfigSource);
-   await serviceCtx.login(user, password);
-   await Session.Start(wssConfig, opts);
-   // if (sparkdConfigSource is not null && sparkdConfigSource.Length > 9999) {
-   // } else {
-   //    await ChatGptSession.Start();
-   // }
-}
-
-var userOpt = new Option<string>("--user", () => "bts");
-var passOpt = new Option<string>("--password", () => string.Empty);
-var sparkdConfigSourceOpt = new Option<string>(
-   "--sparkd", description: "The sparkd config server url");
-// var bling = new ParseArgument<WebsocketServerConfig?>(parseWsConfig);
-
-// WebsocketServerConfig? parseWsConfig(ArgumentResult result) {
-//    Token t;
-//    TokenType tt;
-//    Symbol s;
-//    throw new NotImplementedException();
-// }
-
-var configOpt = new Option<WebsocketServerConfig?>(
-   "--config", readConfigArg, description: "WebsocketServerConfig file path");
-configOpt.SetDefaultValue(new());
-var rootCommand = new RootCommand("Starts a DataStream Websocket Server");
-rootCommand.AddOption(configOpt);
-rootCommand.AddOption(userOpt);
-rootCommand.AddOption(passOpt);
-rootCommand.SetHandler(run, configOpt, userOpt, passOpt, sparkdConfigSourceOpt);
-
-try {
-   return await rootCommand.InvokeAsync(args);
-} catch (Exception ex) {
-   Console.WriteLine($"Error: {ex}");
-}
-return 1;

src/DataStreamSuite/Bts.DataStream.WebsocketServer/Usings.cs

@@ -1,6 +0,0 @@
-global using bts.websocket_core;
-global using bts.websocket_core.json_rpc;
-
-global using System.CommandLine;
-
-global using System.Collections.Immutable;

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

@@ -1,20 +0,0 @@
-module.exports = {
-  root: true,
-  env: { browser: true, es2020: true },
-  extends: [
-    'eslint:recommended',
-    'plugin:react/recommended',
-    'plugin:react/jsx-runtime',
-    'plugin:react-hooks/recommended',
-  ],
-  ignorePatterns: ['dist', '.eslintrc.cjs'],
-  parserOptions: { ecmaVersion: 'latest', sourceType: 'module' },
-  settings: { react: { version: '18.2' } },
-  plugins: ['react-refresh'],
-  rules: {
-    'react-refresh/only-export-components': [
-      'warn',
-      { allowConstantExport: true },
-    ],
-  },
-}

src/DataStreamSuite/Bts.DataStreamWebApp.Client/.gitignore

@@ -1,24 +0,0 @@
-# Logs
-logs
-*.log
-npm-debug.log*
-yarn-debug.log*
-yarn-error.log*
-pnpm-debug.log*
-lerna-debug.log*
-
-node_modules
-dist
-dist-ssr
-*.local
-
-# Editor directories and files
-.vscode/*
-!.vscode/extensions.json
-.idea
-.DS_Store
-*.suo
-*.ntvs*
-*.njsproj
-*.sln
-*.sw?

src/DataStreamSuite/Bts.DataStreamWebApp.Client/Bts.DataStreamWebApp.Client.esproj

@@ -1,11 +0,0 @@
-<Project Sdk="Microsoft.VisualStudio.JavaScript.Sdk/0.5.128-alpha">
-  <PropertyGroup>
-    <StartupCommand>npm run dev</StartupCommand>
-    <JavaScriptTestRoot>src\</JavaScriptTestRoot>
-    <JavaScriptTestFramework>Jest</JavaScriptTestFramework>
-    <!-- Allows the build (or compile) script located on package.json to run on Build -->
-    <ShouldRunBuildScript>false</ShouldRunBuildScript>
-    <!-- Folder where production build objects will be placed -->
-    <PublishAssetsDirectory>$(MSBuildProjectDirectory)\dist</PublishAssetsDirectory>
-  </PropertyGroup>
-</Project>

src/DataStreamSuite/Bts.DataStreamWebApp.Client/README.md

@@ -1,8 +0,0 @@
-# React + Vite
-
-This template provides a minimal setup to get React working in Vite with HMR and some ESLint rules.
-
-Currently, two official plugins are available:
-
-- [@vitejs/plugin-react](https://github.com/vitejs/vite-plugin-react/blob/main/packages/plugin-react/README.md) uses [Babel](https://babeljs.io/) for Fast Refresh
-- [@vitejs/plugin-react-swc](https://github.com/vitejs/vite-plugin-react-swc) uses [SWC](https://swc.rs/) for Fast Refresh

src/DataStreamSuite/Bts.DataStreamWebApp.Client/index.html

@@ -1,13 +0,0 @@
-<!doctype html>
-<html lang="en">
-  <head>
-    <meta charset="UTF-8" />
-    <link rel="icon" type="image/svg+xml" href="/vite.svg" />
-    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
-    <title>Vite + React</title>
-  </head>
-  <body>
-    <div id="root"></div>
-    <script type="module" src="/src/main.jsx"></script>
-  </body>
-</html>

src/DataStreamSuite/Bts.DataStreamWebApp.Client/nuget.config

@@ -1,10 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<configuration>
-  <packageSources>
-    <clear />
-    <add key="nuget.org" value="https://api.nuget.org/v3/index.json" />
-  </packageSources>
-  <disabledPackageSources>
-    <clear />
-  </disabledPackageSources>
-</configuration>

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

@@ -1,27 +0,0 @@
-{
-  "name": "bts.datastreamwebapp.client",
-  "private": true,
-  "version": "0.0.0",
-  "type": "module",
-  "scripts": {
-    "dev": "vite",
-    "build": "vite build",
-    "lint": "eslint . --ext js,jsx --report-unused-disable-directives --max-warnings 0",
-    "preview": "vite preview"
-  },
-  "dependencies": {
-    "react": "^18.2.0",
-    "react-dom": "^18.2.0",
-    "react-use-websocket": "^4.5.0"
-  },
-  "devDependencies": {
-    "@types/react": "^18.2.43",
-    "@types/react-dom": "^18.2.17",
-    "@vitejs/plugin-react": "^4.2.1",
-    "eslint": "^8.55.0",
-    "eslint-plugin-react": "^7.33.2",
-    "eslint-plugin-react-hooks": "^4.6.0",
-    "eslint-plugin-react-refresh": "^0.4.5",
-    "vite": "^5.0.8"
-  }
-}

src/DataStreamSuite/Bts.DataStreamWebApp.Client/public/vite.svg

@@ -1 +0,0 @@
-<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" aria-hidden="true" role="img" class="iconify iconify--logos" width="31.88" height="32" preserveAspectRatio="xMidYMid meet" viewBox="0 0 256 257"><defs><linearGradient id="IconifyId1813088fe1fbc01fb466" x1="-.828%" x2="57.636%" y1="7.652%" y2="78.411%"><stop offset="0%" stop-color="#41D1FF"></stop><stop offset="100%" stop-color="#BD34FE"></stop></linearGradient><linearGradient id="IconifyId1813088fe1fbc01fb467" x1="43.376%" x2="50.316%" y1="2.242%" y2="89.03%"><stop offset="0%" stop-color="#FFEA83"></stop><stop offset="8.333%" stop-color="#FFDD35"></stop><stop offset="100%" stop-color="#FFA800"></stop></linearGradient></defs><path fill="url(#IconifyId1813088fe1fbc01fb466)" d="M255.153 37.938L134.897 252.976c-2.483 4.44-8.862 4.466-11.382.048L.875 37.958c-2.746-4.814 1.371-10.646 6.827-9.67l120.385 21.517a6.537 6.537 0 0 0 2.322-.004l117.867-21.483c5.438-.991 9.574 4.796 6.877 9.62Z"></path><path fill="url(#IconifyId1813088fe1fbc01fb467)" d="M185.432.063L96.44 17.501a3.268 3.268 0 0 0-2.634 3.014l-5.474 92.456a3.268 3.268 0 0 0 3.997 3.378l24.777-5.718c2.318-.535 4.413 1.507 3.936 3.838l-7.361 36.047c-.495 2.426 1.782 4.5 4.151 3.78l15.304-4.649c2.372-.72 4.652 1.36 4.15 3.788l-11.698 56.621c-.732 3.542 3.979 5.473 5.943 2.437l1.313-2.028l72.516-144.72c1.215-2.423-.88-5.186-3.54-4.672l-25.505 4.922c-2.396.462-4.435-1.77-3.759-4.114l16.646-57.705c.677-2.35-1.37-4.583-3.769-4.113Z"></path></svg>

src/DataStreamSuite/Bts.DataStreamWebApp.Client/src/App.css

@@ -1,44 +0,0 @@
-#root {
-    max-width: 1280px;
-    margin: 0 auto;
-    padding: 2rem;
-    text-align: center;
-    --cell-background-color: #293136;
-    --cell-color: #cbe3ef;
-}
-
-tr:nth-child(even) {
-    background: #F2F2F2;
-}
-
-tr:nth-child(odd) {
-    background: #FFF;
-}
-
-th, td {
-    padding-left: 1rem;
-    padding-right: 1rem;
-    background-color: var(--cell-background-color);
-    color: var(--cell-color);
-}
-
-textarea#query-input {
-  height: 5em;
-  width: 50em;
-}
-
-button#query-button {
-  height: 5em;
-  vertical-align: top;
-}
-
-table#query-output {
-  float: none;
-  clear: both;
-}
-
-p#footer {
-  float: none;
-  clear: both;
-  vertical-align: bottom;
-}

src/DataStreamSuite/Bts.DataStreamWebApp.Client/src/App.jsx

@@ -1,88 +0,0 @@
-import { Component } from "react";
-import "./App.css";
-
-export class Home extends Component {
-  static displayName = Home.name;
-  static sparkdHost = "localhost";
-
-  render() {
-    let socket = null;
-    const wsUrl = `ws://localhost:5268/ws`;
-
-    function connectToSparkd() {
-      if (socket == null) {
-        socket = new WebSocket(wsUrl);
-      }
-      if (socket && socket.readyState === WebSocket.OPEN) {
-        return;
-      }
-
-      const output = document.getElementById("query-output");
-      socket.onopen = (event) => {
-        console.log(`Connected to ${wsUrl}`);
-      };
-
-      socket.onmessage = (event) => {
-        console.log(`Received message: ${event.data}`);
-        output.innerHTML = event.data;
-      };
-
-      socket.onerror = (error) => {
-        console.log(`Error on websocket ${wsUrl}: ${error}`);
-      };
-
-      socket.onclose = (event) => {
-        if (event.wasClean) {
-          const msg = `Connection to ${wsUrl} closed cleanly, code=${event.code}, reason=${event.reason}`;
-          console.log(msg);
-        } else {
-          const msg = `Connection to ${wsUrl} abruptly closed`;
-          console.log(msg);
-        }
-      };
-    }
-
-    function executeQuery() {
-      if (socket == null || !socket) {
-        connectToSparkd();
-      }
-      if (socket == null || !socket) {
-        console.log("Failed to connect to websocket server");
-        return;
-      }
-      if (socket.readyState === WebSocket.OPEN) {
-        const queryInput = document.getElementById("query-input");
-        const rpcReq = {
-          jsonrpc: "2.0",
-          method: "subscribe",
-          params: {
-            query: queryInput.value,
-          },
-          id: 1,
-        };
-        socket.send(JSON.stringify(rpcReq));
-      }
-    }
-
-    return (
-      <div>
-        <h1>Data Stream Query Analyzer</h1>
-        <p>Run queries against the BTS Cloud</p>
-        <div>
-          <textarea id="query-input" placeholder="Enter Query"></textarea>
-          <button id="query-button" onClick={executeQuery}>
-            Execute
-          </button>
-        </div>
-        <table id="query-output"></table>
-        <p id="footer">
-          The <code>ClientApp</code> subdirectory is a standard React
-          application based on the <code>create-react-app</code> template. If
-          you open a command prompt in that directory, you can run{" "}
-          <code>npm</code> commands such as <code>npm test</code> or{" "}
-          <code>npm install</code>.
-        </p>
-      </div>
-    );
-  }
-}

src/DataStreamSuite/Bts.DataStreamWebApp.Client/src/assets/react.svg

@@ -1 +0,0 @@
-<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" aria-hidden="true" role="img" class="iconify iconify--logos" width="35.93" height="32" preserveAspectRatio="xMidYMid meet" viewBox="0 0 256 228"><path fill="#00D8FF" d="M210.483 73.824a171.49 171.49 0 0 0-8.24-2.597c.465-1.9.893-3.777 1.273-5.621c6.238-30.281 2.16-54.676-11.769-62.708c-13.355-7.7-35.196.329-57.254 19.526a171.23 171.23 0 0 0-6.375 5.848a155.866 155.866 0 0 0-4.241-3.917C100.759 3.829 77.587-4.822 63.673 3.233C50.33 10.957 46.379 33.89 51.995 62.588a170.974 170.974 0 0 0 1.892 8.48c-3.28.932-6.445 1.924-9.474 2.98C17.309 83.498 0 98.307 0 113.668c0 15.865 18.582 31.778 46.812 41.427a145.52 145.52 0 0 0 6.921 2.165a167.467 167.467 0 0 0-2.01 9.138c-5.354 28.2-1.173 50.591 12.134 58.266c13.744 7.926 36.812-.22 59.273-19.855a145.567 145.567 0 0 0 5.342-4.923a168.064 168.064 0 0 0 6.92 6.314c21.758 18.722 43.246 26.282 56.54 18.586c13.731-7.949 18.194-32.003 12.4-61.268a145.016 145.016 0 0 0-1.535-6.842c1.62-.48 3.21-.974 4.76-1.488c29.348-9.723 48.443-25.443 48.443-41.52c0-15.417-17.868-30.326-45.517-39.844Zm-6.365 70.984c-1.4.463-2.836.91-4.3 1.345c-3.24-10.257-7.612-21.163-12.963-32.432c5.106-11 9.31-21.767 12.459-31.957c2.619.758 5.16 1.557 7.61 2.4c23.69 8.156 38.14 20.213 38.14 29.504c0 9.896-15.606 22.743-40.946 31.14Zm-10.514 20.834c2.562 12.94 2.927 24.64 1.23 33.787c-1.524 8.219-4.59 13.698-8.382 15.893c-8.067 4.67-25.32-1.4-43.927-17.412a156.726 156.726 0 0 1-6.437-5.87c7.214-7.889 14.423-17.06 21.459-27.246c12.376-1.098 24.068-2.894 34.671-5.345a134.17 134.17 0 0 1 1.386 6.193ZM87.276 214.515c-7.882 2.783-14.16 2.863-17.955.675c-8.075-4.657-11.432-22.636-6.853-46.752a156.923 156.923 0 0 1 1.869-8.499c10.486 2.32 22.093 3.988 34.498 4.994c7.084 9.967 14.501 19.128 21.976 27.15a134.668 134.668 0 0 1-4.877 4.492c-9.933 8.682-19.886 14.842-28.658 17.94ZM50.35 144.747c-12.483-4.267-22.792-9.812-29.858-15.863c-6.35-5.437-9.555-10.836-9.555-15.216c0-9.322 13.897-21.212 37.076-29.293c2.813-.98 5.757-1.905 8.812-2.773c3.204 10.42 7.406 21.315 12.477 32.332c-5.137 11.18-9.399 22.249-12.634 32.792a134.718 134.718 0 0 1-6.318-1.979Zm12.378-84.26c-4.811-24.587-1.616-43.134 6.425-47.789c8.564-4.958 27.502 2.111 47.463 19.835a144.318 144.318 0 0 1 3.841 3.545c-7.438 7.987-14.787 17.08-21.808 26.988c-12.04 1.116-23.565 2.908-34.161 5.309a160.342 160.342 0 0 1-1.76-7.887Zm110.427 27.268a347.8 347.8 0 0 0-7.785-12.803c8.168 1.033 15.994 2.404 23.343 4.08c-2.206 7.072-4.956 14.465-8.193 22.045a381.151 381.151 0 0 0-7.365-13.322Zm-45.032-43.861c5.044 5.465 10.096 11.566 15.065 18.186a322.04 322.04 0 0 0-30.257-.006c4.974-6.559 10.069-12.652 15.192-18.18ZM82.802 87.83a323.167 323.167 0 0 0-7.227 13.238c-3.184-7.553-5.909-14.98-8.134-22.152c7.304-1.634 15.093-2.97 23.209-3.984a321.524 321.524 0 0 0-7.848 12.897Zm8.081 65.352c-8.385-.936-16.291-2.203-23.593-3.793c2.26-7.3 5.045-14.885 8.298-22.6a321.187 321.187 0 0 0 7.257 13.246c2.594 4.48 5.28 8.868 8.038 13.147Zm37.542 31.03c-5.184-5.592-10.354-11.779-15.403-18.433c4.902.192 9.899.29 14.978.29c5.218 0 10.376-.117 15.453-.343c-4.985 6.774-10.018 12.97-15.028 18.486Zm52.198-57.817c3.422 7.8 6.306 15.345 8.596 22.52c-7.422 1.694-15.436 3.058-23.88 4.071a382.417 382.417 0 0 0 7.859-13.026a347.403 347.403 0 0 0 7.425-13.565Zm-16.898 8.101a358.557 358.557 0 0 1-12.281 19.815a329.4 329.4 0 0 1-23.444.823c-7.967 0-15.716-.248-23.178-.732a310.202 310.202 0 0 1-12.513-19.846h.001a307.41 307.41 0 0 1-10.923-20.627a310.278 310.278 0 0 1 10.89-20.637l-.001.001a307.318 307.318 0 0 1 12.413-19.761c7.613-.576 15.42-.876 23.31-.876H128c7.926 0 15.743.303 23.354.883a329.357 329.357 0 0 1 12.335 19.695a358.489 358.489 0 0 1 11.036 20.54a329.472 329.472 0 0 1-11 20.722Zm22.56-122.124c8.572 4.944 11.906 24.881 6.52 51.026c-.344 1.668-.73 3.367-1.15 5.09c-10.622-2.452-22.155-4.275-34.23-5.408c-7.034-10.017-14.323-19.124-21.64-27.008a160.789 160.789 0 0 1 5.888-5.4c18.9-16.447 36.564-22.941 44.612-18.3ZM128 90.808c12.625 0 22.86 10.235 22.86 22.86s-10.235 22.86-22.86 22.86s-22.86-10.235-22.86-22.86s10.235-22.86 22.86-22.86Z"></path></svg>

src/DataStreamSuite/Bts.DataStreamWebApp.Client/src/index.css

@@ -1,68 +0,0 @@
-:root {
-  font-family: Inter, system-ui, Avenir, Helvetica, Arial, sans-serif;
-  line-height: 1.5;
-  font-weight: 400;
-
-  color-scheme: light dark;
-  color: rgba(255, 255, 255, 0.87);
-  background-color: #242424;
-
-  font-synthesis: none;
-  text-rendering: optimizeLegibility;
-  -webkit-font-smoothing: antialiased;
-  -moz-osx-font-smoothing: grayscale;
-}
-
-a {
-  font-weight: 500;
-  color: #646cff;
-  text-decoration: inherit;
-}
-a:hover {
-  color: #535bf2;
-}
-
-body {
-  margin: 0;
-  display: flex;
-  place-items: center;
-  min-width: 320px;
-  min-height: 100vh;
-}
-
-h1 {
-  font-size: 3.2em;
-  line-height: 1.1;
-}
-
-button {
-  border-radius: 8px;
-  border: 1px solid transparent;
-  padding: 0.6em 1.2em;
-  font-size: 1em;
-  font-weight: 500;
-  font-family: inherit;
-  background-color: #1a1a1a;
-  cursor: pointer;
-  transition: border-color 0.25s;
-}
-button:hover {
-  border-color: #646cff;
-}
-button:focus,
-button:focus-visible {
-  outline: 4px auto -webkit-focus-ring-color;
-}
-
-@media (prefers-color-scheme: light) {
-  :root {
-    color: #213547;
-    background-color: #ffffff;
-  }
-  a:hover {
-    color: #747bff;
-  }
-  button {
-    background-color: #f9f9f9;
-  }
-}

src/DataStreamSuite/Bts.DataStreamWebApp.Client/src/main.jsx

@@ -1,10 +0,0 @@
-import React from 'react'
-import ReactDOM from 'react-dom/client'
-import {Home} from './App.jsx'
-import './index.css'
-
-ReactDOM.createRoot(document.getElementById('root')).render(
-  <React.StrictMode>
-    <Home />
-  </React.StrictMode>,
-)

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

@@ -1,60 +0,0 @@
-import { fileURLToPath, URL } from 'node:url';
-
-import { defineConfig } from 'vite';
-import plugin from '@vitejs/plugin-react';
-import fs from 'fs';
-import path from 'path';
-import child_process from 'child_process';
-
-const baseFolder =
-    process.env.APPDATA !== undefined && process.env.APPDATA !== ''
-        ? `${process.env.APPDATA}/ASP.NET/https`
-        : `${process.env.HOME}/.aspnet/https`;
-
-const certificateArg = process.argv.map(arg => arg.match(/--name=(?<value>.+)/i)).filter(Boolean)[0];
-const certificateName = certificateArg ? certificateArg.groups.value : "bts.datastreamwebapp.client";
-
-if (!certificateName) {
-    console.error('Invalid certificate name. Run this script in the context of an npm/yarn script or pass --name=<<app>> explicitly.')
-    process.exit(-1);
-}
-
-const certFilePath = path.join(baseFolder, `${certificateName}.pem`);
-const keyFilePath = path.join(baseFolder, `${certificateName}.key`);
-
-if (!fs.existsSync(certFilePath) || !fs.existsSync(keyFilePath)) {
-    if (0 !== child_process.spawnSync('dotnet', [
-        'dev-certs',
-        'https',
-        '--export-path',
-        certFilePath,
-        '--format',
-        'Pem',
-        '--no-password',
-    ], { stdio: 'inherit', }).status) {
-        throw new Error("Could not create certificate.");
-    }
-}
-
-// https://vitejs.dev/config/
-export default defineConfig({
-    plugins: [plugin()],
-    resolve: {
-        alias: {
-            '@': fileURLToPath(new URL('./src', import.meta.url))
-        }
-    },
-    server: {
-        proxy: {
-            '^/weatherforecast': {
-                target: 'https://localhost:7128/',
-                secure: false
-            }
-        },
-        port: 5173,
-        https: {
-            key: fs.readFileSync(keyFilePath),
-            cert: fs.readFileSync(certFilePath),
-        }
-    }
-})

src/DataStreamSuite/Bts.DataStreamWebApp.Server/Bts.DataStreamWebApp.Server.csproj

@@ -1,35 +0,0 @@
-<Project Sdk="Microsoft.NET.Sdk.Web">
-
-  <PropertyGroup>
-    <TargetFramework>net8.0</TargetFramework>
-    <Nullable>enable</Nullable>
-    <ImplicitUsings>enable</ImplicitUsings>
-    <InvariantGlobalization>true</InvariantGlobalization>
-    <SpaRoot>..\Bts.DataStreamWebApp.Client</SpaRoot>
-    <SpaProxyLaunchCommand>npm run dev</SpaProxyLaunchCommand>
-    <SpaProxyServerUrl>https://localhost:5173</SpaProxyServerUrl>
-  </PropertyGroup>
-
-  <ItemGroup>
-    <PackageReference Include="CommandLineParser" Version="2.9.1" />
-    <PackageReference Include="Microsoft.AspNetCore.SpaProxy">
-      <Version>8.*-*</Version>
-    </PackageReference>
-    <PackageReference Include="Newtonsoft.Json" Version="13.0.3" />
-    <PackageReference Include="Swashbuckle.AspNetCore" Version="6.4.0" />
-  </ItemGroup>
-
-  <ItemGroup>
-    <ProjectReference Include="..\Bts.DataStreamWebApp.Client\Bts.DataStreamWebApp.Client.esproj">
-      <ReferenceOutputAssembly>false</ReferenceOutputAssembly>
-    </ProjectReference>
-    <ProjectReference Include="..\DataStream\DataStream.csproj" />
-    <ProjectReference Include="..\SharedStreams\SharedStreams.csproj" />
-    <ProjectReference Include="..\..\client\spark_api\spark_api.csproj" />
-    <ProjectReference Include="..\..\client\spark_websocket\spark_websocket.csproj" />
-  </ItemGroup>
-
-  <!-- <ItemGroup>
-    <Content Update="wwwroot\alt-index.html" CopyToPublishDirectory="Never" />
-  </ItemGroup> -->
-</Project>

src/DataStreamSuite/Bts.DataStreamWebApp.Server/Bts.DataStreamWebApp.Server.http

@@ -1,6 +0,0 @@
-@Bts.DataStreamWebApp.Server_HostAddress = http://localhost:5268
-
-GET {{Bts.DataStreamWebApp.Server_HostAddress}}/weatherforecast/
-Accept: application/json
-
-###

src/DataStreamSuite/Bts.DataStreamWebApp.Server/Controllers/DataStreamSubscriptionController.cs

@@ -1,107 +0,0 @@
-namespace Bts.DataStreamWebApp.Server.Controllers;
-
-using BCG;
-
-using bts.api.core;
-using bts.websocket_core.json_rpc;
-
-using Bts.DataStreamExpressions;
-
-using Microsoft.AspNetCore.Mvc;
-
-using Spark.Core.Disposables;
-
-using System.Net.WebSockets;
-using System.Text;
-using System.Text.Json;
-
-[Route("/ws")]
-public class DataStreamSubscriptionController(ILogger<DataStreamSubscriptionController> logger) : ControllerBase {
-   readonly ILogger<DataStreamSubscriptionController> logger = logger;
-   IDisposable? streamSubscription;
-
-   [Route("/ws")]
-   public async Task Get() {
-      if (!HttpContext.WebSockets.IsWebSocketRequest) {
-         logger.LogError("Expected websocket request on path '{}'", HttpContext.Request.Path);
-         return;
-      }
-      Console.WriteLine("Establishing websocket connection...");
-      using var webSocket = await HttpContext.WebSockets.AcceptWebSocketAsync();
-      Console.WriteLine($"Websocket connection established.");
-      await runWebSocketServer(null, "bts", string.Empty, webSocket);
-   }
-
-   public static async Task Echo(WebSocket webSocket) {
-      var buffer = new byte[1024 * 4];
-      var receiveResult = await webSocket.ReceiveAsync(
-          new ArraySegment<byte>(buffer), CancellationToken.None);
-
-      while (!receiveResult.CloseStatus.HasValue) {
-         await webSocket.SendAsync(
-             new ArraySegment<byte>(buffer, 0, receiveResult.Count),
-             receiveResult.MessageType,
-             receiveResult.EndOfMessage,
-             CancellationToken.None);
-
-         receiveResult = await webSocket.ReceiveAsync(
-             new ArraySegment<byte>(buffer), CancellationToken.None);
-      }
-
-      await webSocket.CloseAsync(
-          receiveResult.CloseStatus.Value,
-          receiveResult.CloseStatusDescription,
-          CancellationToken.None);
-   }
-
-   async Task<int> runWebSocketServer(string? sparkd, string user, string password, WebSocket webSocket) {
-      var context = ServiceContext.create(sparkd);
-      await context.login(user, password);
-      var buffer = new byte[1024 * 4];
-      var receiveResult = await webSocket.ReceiveAsync(
-          new ArraySegment<byte>(buffer), CancellationToken.None);
-
-      try {
-         while (!receiveResult.CloseStatus.HasValue) {
-            receiveResult = await webSocket.ReceiveAsync(
-                new ArraySegment<byte>(buffer), CancellationToken.None);
-            var msg = Encoding.UTF8.GetString(buffer, 0, receiveResult.Count);
-            var rpcReq = JsonSerializer.Deserialize<JsonRpcRequest<DataStreamSubscription>>(msg);
-            var query = rpcReq?.Params?.Query ?? throw new InvalidOperationException(
-               "Failed to parse JsonRpcRequest.Params");
-            var exp = DataStreamExpressionsInterpreter.Evaluate(query);
-            if (exp is null) {
-               Console.WriteLine($"Invalid query expression: {query}.");
-               continue;
-            }
-            var vs = exp.getView(new Dictionary<string, StatementExpression>(0));
-            Disposable.dispose(ref streamSubscription);
-            vs.onChange += OnStreamChanged;
-            streamSubscription = Disposable.Create(() => vs.onChange -= OnStreamChanged);
-         }
-      } catch (Exception ex) {
-         Console.WriteLine($"Exception on WebsocketServer thread: {ex}");
-         return 1;
-      }
-
-      return 0;
-
-      async void OnStreamChanged(object newValue) {
-         if (newValue is not DataPacket dp) {
-            Console.WriteLine(
-               $"OnStreamChanged delegate expected DataPacket (actually received {newValue?.GetType()}.");
-            return;
-         }
-         Console.WriteLine("Received stream update.");
-         var added_rows_str = dp.addedRows.get_printed_rows(val => val.Length);
-         var msg = $"Received new rows:\n{added_rows_str}";
-         var encoded = Encoding.UTF8.GetBytes(msg);
-         var payload = new ArraySegment<byte>(encoded, 0, encoded.Length);
-         await webSocket.SendAsync(
-             payload,
-             receiveResult.MessageType,
-             receiveResult.EndOfMessage,
-             CancellationToken.None);
-      }
-   }
-}

src/DataStreamSuite/Bts.DataStreamWebApp.Server/Controllers/WeatherForecastController.cs

@@ -1,22 +0,0 @@
-namespace Bts.DataStreamWebApp.Server.Controllers;
-using Microsoft.AspNetCore.Mvc;
-
-[ApiController]
-[Route("[controller]")]
-public class WeatherForecastController(ILogger<WeatherForecastController> logger) : ControllerBase {
-   static readonly string[] Summaries = [
-      "Freezing", "Bracing", "Chilly", "Cool", "Mild", "Warm", "Balmy", "Hot", "Sweltering", "Scorching"
-   ];
-
-   readonly ILogger<WeatherForecastController> _logger = logger;
-
-   [HttpGet(Name = "GetWeatherForecast")]
-   public IEnumerable<WeatherForecast> Get() {
-      return Enumerable.Range(1, 5).Select(index => new WeatherForecast {
-         Date = DateOnly.FromDateTime(DateTime.Now.AddDays(index)),
-         TemperatureC = Random.Shared.Next(-20, 55),
-         Summary = Summaries[Random.Shared.Next(Summaries.Length)]
-      })
-      .ToArray();
-   }
-}

src/DataStreamSuite/Bts.DataStreamWebApp.Server/DataStreamSubscription.cs

@@ -1,8 +0,0 @@
-namespace Bts.DataStreamWebApp.Server;
-
-using System.Text.Json.Serialization;
-
-public class DataStreamSubscription {
-   [JsonPropertyName("query")]
-   public string? Query { get; set; }
-}

src/DataStreamSuite/Bts.DataStreamWebApp.Server/DataStreamUpdate.cs

@@ -1,8 +0,0 @@
-namespace Bts.DataStreamWebApp.Server;
-
-using BCG;
-
-class DataStreamUpdate {
-   public List<IBlueRow> addedRows { get; set; } = new(0);
-   public List<IBlueRow> deletedRows { get; set; } = new(0);
-}

src/DataStreamSuite/Bts.DataStreamWebApp.Server/DataStreamWebAppServerOptions.cs

@@ -1,14 +0,0 @@
-namespace Bts.DataStreamWebApp.Server;
-
-using CommandLine;
-
-class DataStreamWebAppServerOptions {
-   [Option("sparkd")]
-   public string? sparkd { get; set; }
-
-   [Option("user", Default = "bts")]
-   public string? user { get; set; }
-
-   [Option("password", Default = "")]
-   public string? password { get; set; }
-}

src/DataStreamSuite/Bts.DataStreamWebApp.Server/DataStreamWebsocketHandler.cs

@@ -1,58 +0,0 @@
-using Microsoft.AspNetCore.Http;
-using Microsoft.Extensions.Logging;
-
-using System;
-using System.Net.WebSockets;
-using System.Threading;
-using System.Threading.Tasks;
-
-namespace Bts.DataStreamWebApp.Server {
-   // public class DataStreamWebSocketHandler {
-   //    readonly WebSocketConnectionManager _connectionManager = new();
-   //    readonly ILogger<DataStreamWebSocketHandler> _logger;
-
-   //    public DataStreamWebSocketHandler(
-   //       WebSocketConnectionManager connectionManager,
-   //       ILogger<DataStreamWebSocketHandler> logger
-   //    ) {
-   //       _connectionManager = connectionManager;
-   //       _logger = logger;
-   //    }
-
-   //    public async Task HandleWebSocket(HttpContext context, WebSocket webSocket) {
-   //       var socketId = _connectionManager.AddSocket(webSocket);
-
-   //       _logger.LogInformation($"WebSocket connection established with ID {socketId}");
-
-   //       while (webSocket.State == WebSocketState.Open) {
-   //          var message = await ReceiveMessageAsync(webSocket);
-   //          if (message != null) {
-   //             _logger.LogInformation($"Received message from ID {socketId}: {message}");
-   //             await BroadcastMessageAsync(message);
-   //          }
-   //       }
-
-   //       _connectionManager.RemoveSocket(socketId);
-   //       _logger.LogInformation($"WebSocket connection closed with ID {socketId}");
-   //    }
-
-   //    async Task<string?> ReceiveMessageAsync(WebSocket webSocket) {
-   //       var buffer = new byte[1024];
-   //       var result = await webSocket.ReceiveAsync(new ArraySegment<byte>(buffer), CancellationToken.None);
-
-   //       if (result.CloseStatus.HasValue) {
-   //          return null;
-   //       }
-
-   //       return System.Text.Encoding.UTF8.GetString(buffer, 0, result.Count);
-   //    }
-
-   //    async Task BroadcastMessageAsync(string message) {
-   //       foreach (var socket in _connectionManager.GetAllSockets()) {
-   //          if (socket.Value.State == WebSocketState.Open) {
-   //             await socket.Value.SendAsync(System.Text.Encoding.UTF8.GetBytes(message), WebSocketMessageType.Text, true, CancellationToken.None);
-   //          }
-   //       }
-   //    }
-   // }
-}

src/DataStreamSuite/Bts.DataStreamWebApp.Server/Program.cs

@@ -1,159 +0,0 @@
-using BCG;
-
-using bts;
-using bts.api.core;
-using bts.utils;
-using bts.websocket_core.json_rpc;
-
-using Bts.DataStreamExpressions;
-using Bts.DataStreamWebApp.Server;
-using Bts.DataStreamWebApp.Server.Controllers;
-
-using CommandLine;
-
-using mbts.config;
-
-using System.Net.WebSockets;
-using System.Reactive.Disposables;
-using System.Reactive.Linq;
-using System.Text;
-using System.Text.Json;
-using System.Text.Json.Serialization;
-
-static string fmtReq(HttpRequest req) =>
-   $"{req.Protocol}://{req.Host}/{req.Path}?{req.QueryString}";
-
-static string fmtDataPacket(DataPacket dp) {
-   var sb = new StringBuilder();
-   var rows = dp.addedRows.Cast<IBlueRow>().ToList();
-   var colWidths = dp.schema.columnInfo.Select(c => rows.Max(r => r[c.colNo]?.ToString()?.Length ?? 0)).ToArray();
-   foreach (IBlueRow r in dp.addedRows) {
-      for (int i = 0; i < colWidths.Length; i++) {
-         var str = r[i]?.ToString() ?? string.Empty;
-         if (i > 0) {
-            sb.Append(" | ");
-         }
-         sb.Append(str);
-         var width = colWidths[i];
-         if (str.Length < width) {
-            sb.Append(new string(' ', width - str.Length));
-         }
-      }
-      sb.AppendLine();
-   }
-   return sb.ToString();
-}
-
-var parser = new Parser(ps => {
-   ps.CaseInsensitiveEnumValues = true;
-   ps.HelpWriter = Console.Out;
-});
-
-await parser.ParseArguments<DataStreamWebAppServerOptions>(args).
-   MapResult(run, errors => Task.FromResult(1));
-
-async Task<int> run(DataStreamWebAppServerOptions opts) {
-   BTSNativeMethods.provide_command_line(args, args.Length);
-   Configuration.initialize();
-   var context = ServiceContext.create(opts.sparkd);
-   await context.login(opts.user!, opts.password!);
-   var vsWorkLoop = Observable.Interval(TimeSpan.FromMilliseconds(200)).Subscribe(_ => {
-      ViewStreamDatabase.instance.doWork();
-      MasterWorker.getInstance(false).doWork();
-   });
-   var builder = WebApplication.CreateBuilder(args);
-   builder.Services.AddDirectoryBrowser();
-   var app = builder.Build();
-   var wsOpts = new WebSocketOptions {
-      KeepAliveInterval = TimeSpan.FromMinutes(2)
-   };
-   app.UseWebSockets(wsOpts);
-   app.UseDefaultFiles();
-   app.UseStaticFiles();
-   app.MapFallbackToFile("/index.html");
-
-   app.Use(async (context, next) => {
-      var reqDesc = fmtReq(context.Request);
-      Console.WriteLine($"Webserver received: {reqDesc}");
-      if (context.Request.Path == "/ws") {
-         if (context.WebSockets.IsWebSocketRequest) {
-            Console.WriteLine("Accepting websocket connection...");
-            using var webSocket = await context.WebSockets.AcceptWebSocketAsync();
-            Console.WriteLine("Websocket connection accepted.");
-            await runWebSocketServer(
-               opts.sparkd, opts.user!, opts.password!, webSocket);
-         } else {
-            context.Response.StatusCode = StatusCodes.Status400BadRequest;
-         }
-      } else {
-         Console.WriteLine($"Webserver ignoring req: {reqDesc}");
-         await next(context);
-      }
-   });
-
-   try {
-      await app.RunAsync();
-   } catch (Exception ex) {
-      Console.WriteLine($"Exception on DataStreamWebsocketServer thread: {ex}");
-      return 1;
-   }
-   Spark.Core.Disposables.Disposable.dispose(ref vsWorkLoop);
-   return 0;
-}
-
-async Task<int> runWebSocketServer(string? sparkd, string user, string password, WebSocket webSocket) {
-   var buffer = new byte[1024 * 4];
-   var receiveResult = await webSocket.ReceiveAsync(
-       new ArraySegment<byte>(buffer), CancellationToken.None);
-
-   try {
-      while (!receiveResult.CloseStatus.HasValue) {
-         Console.WriteLine("Awaiting websocket message from client");
-         receiveResult = await webSocket.ReceiveAsync(
-             new ArraySegment<byte>(buffer), CancellationToken.None);
-         var msg = Encoding.UTF8.GetString(buffer, 0, receiveResult.Count);
-         var rpcReq = JsonSerializer.Deserialize<JsonRpcRequest<DataStreamSubscription>>(msg);
-         var queryArgs = rpcReq!.Params!;
-         // var queryArgs = new DataStreamSubscription { Query = msg };
-         var exp = DataStreamExpressionsInterpreter.Evaluate(queryArgs.Query!);
-         if (exp is null) {
-            Console.WriteLine($"Invalid query expression: {queryArgs.Query}.");
-            continue;
-         }
-         var vs = exp.getView(new Dictionary<string, StatementExpression>(0));
-         Console.WriteLine("Subscribing to stream...");
-         vs.onChange += onStreamChanged;
-
-         await webSocket.SendAsync(
-             new ArraySegment<byte>(buffer, 0, receiveResult.Count),
-             receiveResult.MessageType,
-             receiveResult.EndOfMessage,
-             CancellationToken.None);
-      }
-   } catch (Exception ex) {
-      Console.WriteLine($"Exception on WebsocketServer thread: {ex}");
-      return 1;
-   }
-
-   return 0;
-
-   async void onStreamChanged(object newValue) {
-      if (newValue is not DataPacket dp) {
-         Console.WriteLine(
-            $"OnStreamChanged delegate expected DataPacket (actually received {newValue?.GetType()}.");
-         return;
-      }
-      Console.WriteLine("Received stream update.");
-      var sb = new StringBuilder();
-      var updateDesc = fmtDataPacket(dp);
-      var msg = $"Received new rows:\n{updateDesc}";
-      // var payload = new ReadOnlyMemory<byte>([.. msg]);
-      var encoded = Encoding.UTF8.GetBytes(msg);
-      var payload = new ArraySegment<byte>(encoded, 0, encoded.Length);
-      await webSocket.SendAsync(
-          payload,
-          receiveResult.MessageType,
-          receiveResult.EndOfMessage,
-          CancellationToken.None);
-   }
-}

src/DataStreamSuite/Bts.DataStreamWebApp.Server/Properties/launchSettings.json

@@ -1,48 +0,0 @@
-{
-  "profiles": {
-    "default": {
-      "commandName": "Project",
-      "launchBrowser": true,
-      "applicationUrl": "http://localhost:5400"
-    },
-    "http": {
-      "commandName": "Project",
-      "launchBrowser": true,
-      "launchUrl": "swagger",
-      "environmentVariables": {
-        "ASPNETCORE_ENVIRONMENT": "Development",
-        "ASPNETCORE_HOSTINGSTARTUPASSEMBLIES": "Microsoft.AspNetCore.SpaProxy"
-      },
-      "dotnetRunMessages": true,
-      "applicationUrl": "http://localhost:5268"
-    },
-    "https": {
-      "commandName": "Project",
-      "launchUrl": "swagger",
-      "environmentVariables": {
-        "ASPNETCORE_ENVIRONMENT": "Development",
-        "ASPNETCORE_HOSTINGSTARTUPASSEMBLIES": "Microsoft.AspNetCore.SpaProxy"
-      },
-      "dotnetRunMessages": true,
-      "applicationUrl": "https://localhost:7128;http://localhost:5268"
-    },
-    "IIS Express": {
-      "commandName": "IISExpress",
-      "launchBrowser": true,
-      "launchUrl": "swagger",
-      "environmentVariables": {
-        "ASPNETCORE_ENVIRONMENT": "Development",
-        "ASPNETCORE_HOSTINGSTARTUPASSEMBLIES": "Microsoft.AspNetCore.SpaProxy"
-      }
-    }
-  },
-  "$schema": "http://json.schemastore.org/launchsettings.json",
-  "iisSettings": {
-    "windowsAuthentication": false,
-    "anonymousAuthentication": true,
-    "iisExpress": {
-      "applicationUrl": "http://localhost:2083",
-      "sslPort": 44383
-    }
-  }
-}

src/DataStreamSuite/Bts.DataStreamWebApp.Server/WeatherForecast.cs

@@ -1,12 +0,0 @@
-namespace Bts.DataStreamWebApp.Server;
-
-public class WeatherForecast
-{
-   public DateOnly Date { get; set; }
-
-   public int TemperatureC { get; set; }
-
-   public int TemperatureF => 32 + (int)(TemperatureC / 0.5556);
-
-   public string? Summary { get; set; }
-}

src/DataStreamSuite/Bts.DataStreamWebApp.Server/WebsocketConnectionManager.cs

@@ -1,37 +0,0 @@
-using System;
-using System.Collections.Concurrent;
-using System.Net.WebSockets;
-
-namespace Bts.DataStreamWebApp.Server {
-   // public class WebSocketConnectionManager {
-   //    private readonly ConcurrentDictionary<Guid, WebSocket> _sockets = new ConcurrentDictionary<Guid, WebSocket>();
-
-   //    public Guid AddSocket(WebSocket socket) {
-   //       var socketId = Guid.NewGuid();
-   //       _sockets.TryAdd(socketId, socket);
-   //       return socketId;
-   //    }
-
-   //    public WebSocket? GetSocket(Guid socketId) {
-   //       _sockets.TryGetValue(socketId, out var socket);
-   //       return socket;
-   //    }
-
-   //    public ConcurrentDictionary<Guid, WebSocket>.ValueCollection GetAllSockets() {
-   //       return _sockets.Values;
-   //    }
-
-   //    public Guid? GetSocketId(WebSocket socket) {
-   //       foreach (var (key, value) in _sockets) {
-   //          if (value == socket) {
-   //             return key;
-   //          }
-   //       }
-   //       return null;
-   //    }
-
-   //    public void RemoveSocket(Guid socketId) {
-   //       _sockets.TryRemove(socketId, out _);
-   //    }
-   // }
-}

src/DataStreamSuite/Bts.DataStreamWebApp.Server/appsettings.Development.json

@@ -1,8 +0,0 @@
-{
-  "Logging": {
-    "LogLevel": {
-      "Default": "Information",
-      "Microsoft.AspNetCore": "Warning"
-    }
-  }
-}

src/DataStreamSuite/Bts.DataStreamWebApp.Server/appsettings.json

@@ -1,9 +0,0 @@
-{
-  "Logging": {
-    "LogLevel": {
-      "Default": "Information",
-      "Microsoft.AspNetCore": "Warning"
-    }
-  },
-  "AllowedHosts": "*"
-}

src/DataStreamSuite/Bts.DataStreamWebApp.Server/wwwroot/alt-index.html

@@ -1,168 +0,0 @@
-<!DOCTYPE html>
-<html>
-<head>
-    <meta charset="utf-8" />
-    <title></title>
-    <style>
-        table {
-            border: 0
-        }
-
-        .commslog-data {
-            font-family: Consolas, Courier New, Courier, monospace;
-        }
-
-        .commslog-server {
-            background-color: red;
-            color: white
-        }
-
-        .commslog-client {
-            background-color: green;
-            color: white
-        }
-    </style>
-</head>
-<body>
-    <h1>ALT WebSocket Sample Application</h1>
-    <p id="stateLabel">Ready to connect...</p>
-    <div>
-        <label for="connectionUrl">WebSocket Server URL:</label>
-        <input id="connectionUrl" />
-        <button id="connectButton" type="submit">Connect</button>
-    </div>
-    <p></p>
-    <div>
-        <label for="sendMessage">Message to send:</label>
-        <input id="sendMessage" disabled />
-        <button id="sendButton" type="submit" disabled>Send</button>
-        <button id="closeButton" disabled>Close Socket</button>
-    </div>
-
-    <h2>Communication Log</h2>
-    <table style="width: 800px">
-        <thead>
-            <tr>
-                <td style="width: 100px">From</td>
-                <td style="width: 100px">To</td>
-                <td>Data</td>
-            </tr>
-        </thead>
-        <tbody id="commsLog">
-        </tbody>
-    </table>
-
-    <script>
-        var connectionUrl = document.getElementById("connectionUrl");
-        var connectButton = document.getElementById("connectButton");
-        var stateLabel = document.getElementById("stateLabel");
-        var sendMessage = document.getElementById("sendMessage");
-        var sendButton = document.getElementById("sendButton");
-        var commsLog = document.getElementById("commsLog");
-        var closeButton = document.getElementById("closeButton");
-        var socket;
-
-        var scheme = document.location.protocol === "https:" ? "wss" : "ws";
-        var port = document.location.port ? (":" + document.location.port) : "";
-
-        connectionUrl.value = scheme + "://" + document.location.hostname + port + "/ws" ;
-
-        function updateState() {
-            function disable() {
-                sendMessage.disabled = true;
-                sendButton.disabled = true;
-                closeButton.disabled = true;
-            }
-            function enable() {
-                sendMessage.disabled = false;
-                sendButton.disabled = false;
-                closeButton.disabled = false;
-            }
-
-            connectionUrl.disabled = true;
-            connectButton.disabled = true;
-
-            if (!socket) {
-                disable();
-            } else {
-                switch (socket.readyState) {
-                    case WebSocket.CLOSED:
-                        stateLabel.innerHTML = "Closed";
-                        disable();
-                        connectionUrl.disabled = false;
-                        connectButton.disabled = false;
-                        break;
-                    case WebSocket.CLOSING:
-                        stateLabel.innerHTML = "Closing...";
-                        disable();
-                        break;
-                    case WebSocket.CONNECTING:
-                        stateLabel.innerHTML = "Connecting...";
-                        disable();
-                        break;
-                    case WebSocket.OPEN:
-                        stateLabel.innerHTML = "Open";
-                        enable();
-                        break;
-                    default:
-                        stateLabel.innerHTML = "Unknown WebSocket State: " + htmlEscape(socket.readyState);
-                        disable();
-                        break;
-                }
-            }
-        }
-
-        closeButton.onclick = function () {
-            if (!socket || socket.readyState !== WebSocket.OPEN) {
-                alert("socket not connected");
-            }
-            socket.close(1000, "Closing from client");
-        };
-
-        sendButton.onclick = function () {
-            if (!socket || socket.readyState !== WebSocket.OPEN) {
-                alert("socket not connected");
-            }
-            var data = sendMessage.value;
-            socket.send(data);
-            commsLog.innerHTML += '<tr>' +
-                '<td class="commslog-client">Client</td>' +
-                '<td class="commslog-server">Server</td>' +
-                '<td class="commslog-data">' + htmlEscape(data) + '</td></tr>';
-        };
-
-        connectButton.onclick = function() {
-            stateLabel.innerHTML = "Connecting";
-            socket = new WebSocket(connectionUrl.value);
-            socket.onopen = function (event) {
-                updateState();
-                commsLog.innerHTML += '<tr>' +
-                    '<td colspan="3" class="commslog-data">Connection opened</td>' +
-                '</tr>';
-            };
-            socket.onclose = function (event) {
-                updateState();
-                commsLog.innerHTML += '<tr>' +
-                    '<td colspan="3" class="commslog-data">Connection closed. Code: ' + htmlEscape(event.code) + '. Reason: ' + htmlEscape(event.reason) + '</td>' +
-                '</tr>';
-            };
-            socket.onerror = updateState;
-            socket.onmessage = function (event) {
-                commsLog.innerHTML += '<tr>' +
-                    '<td class="commslog-server">Server</td>' +
-                    '<td class="commslog-client">Client</td>' +
-                    '<td class="commslog-data">' + htmlEscape(event.data) + '</td></tr>';
-            };
-        };
-
-        function htmlEscape(str) {
-            return str.toString()
-                .replace(/&/g, '&amp;')
-                .replace(/"/g, '&quot;')
-                .replace(/'/g, '&#39;')
-                .replace(/</g, '&lt;')
-                .replace(/>/g, '&gt;');
-        }
-    </script>
-</body>
-</html>

src/DataStreamSuite/Bts.DataStreamWebApp.Server/wwwroot/index.html

@@ -1,176 +0,0 @@
-<!DOCTYPE html>
-<html>
-<head>
-    <meta charset="utf-8" />
-    <title></title>
-    <style>
-        table {
-            border: 0
-        }
-
-        .commslog-data {
-            font-family: Consolas, Courier New, Courier, monospace;
-        }
-
-        .commslog-server {
-            background-color: red;
-            color: white
-        }
-
-        .commslog-client {
-            background-color: green;
-            color: white
-        }
-    </style>
-</head>
-<body>
-    <h1>DataStreams via WebSocket</h1>
-    <p id="stateLabel">Ready to connect...</p>
-    <div>
-        <label for="connectionUrl">WebSocket Server URL:</label>
-        <input id="connectionUrl" />
-        <button id="connectButton" type="submit">Connect</button>
-    </div>
-    <p></p>
-    <div>
-        <label for="sendMessage">Query:</label>
-        <input id="sendMessage" disabled />
-        <button id="sendButton" type="submit" disabled>Send</button>
-        <button id="closeButton" disabled>Close Socket</button>
-    </div>
-
-    <h2>Communication Log</h2>
-    <table style="width: 800px">
-        <thead>
-            <tr>
-                <td style="width: 100px">From</td>
-                <td style="width: 100px">To</td>
-                <td>Data</td>
-            </tr>
-        </thead>
-        <tbody id="commsLog">
-        </tbody>
-    </table>
-
-    <script>
-        var connectionUrl = document.getElementById("connectionUrl");
-        var connectButton = document.getElementById("connectButton");
-        var stateLabel = document.getElementById("stateLabel");
-        var sendMessage = document.getElementById("sendMessage");
-        var sendButton = document.getElementById("sendButton");
-        var commsLog = document.getElementById("commsLog");
-        var closeButton = document.getElementById("closeButton");
-        var socket;
-
-        var scheme = document.location.protocol === "https:" ? "wss" : "ws";
-        var port = document.location.port ? (":" + document.location.port) : "";
-
-        connectionUrl.value = scheme + "://" + document.location.hostname + port + "/ws" ;
-
-        function updateState() {
-            function disable() {
-                sendMessage.disabled = true;
-                sendButton.disabled = true;
-                closeButton.disabled = true;
-            }
-            function enable() {
-                sendMessage.disabled = false;
-                sendButton.disabled = false;
-                closeButton.disabled = false;
-            }
-
-            connectionUrl.disabled = true;
-            connectButton.disabled = true;
-
-            if (!socket) {
-                disable();
-            } else {
-                switch (socket.readyState) {
-                    case WebSocket.CLOSED:
-                        stateLabel.innerHTML = "Closed";
-                        disable();
-                        connectionUrl.disabled = false;
-                        connectButton.disabled = false;
-                        break;
-                    case WebSocket.CLOSING:
-                        stateLabel.innerHTML = "Closing...";
-                        disable();
-                        break;
-                    case WebSocket.CONNECTING:
-                        stateLabel.innerHTML = "Connecting...";
-                        disable();
-                        break;
-                    case WebSocket.OPEN:
-                        stateLabel.innerHTML = "Open";
-                        enable();
-                        break;
-                    default:
-                        stateLabel.innerHTML = "Unknown WebSocket State: " + htmlEscape(socket.readyState);
-                        disable();
-                        break;
-                }
-            }
-        }
-
-        closeButton.onclick = function () {
-            if (!socket || socket.readyState !== WebSocket.OPEN) {
-                alert("socket not connected");
-            }
-            socket.close(1000, "Closing from client");
-        };
-
-        sendButton.onclick = function () {
-            if (!socket || socket.readyState !== WebSocket.OPEN) {
-                alert("socket not connected");
-            }
-            const rpcReq = {
-              jsonrpc: "2.0",
-              method: "subscribe",
-              params: {
-                query: sendMessage.value,
-              },
-              id: 1,
-            };
-            const rpcReqStr = JSON.stringify(rpcReq);
-            socket.send(rpcReqStr);
-            commsLog.innerHTML += '<tr>' +
-                '<td class="commslog-client">Client</td>' +
-                '<td class="commslog-server">Server</td>' +
-                '<td class="commslog-data">' + htmlEscape(rpcReqStr) + '</td></tr>';
-        };
-
-        connectButton.onclick = function() {
-            stateLabel.innerHTML = "Connecting";
-            socket = new WebSocket(connectionUrl.value);
-            socket.onopen = function (event) {
-                updateState();
-                commsLog.innerHTML += '<tr>' +
-                    '<td colspan="3" class="commslog-data">Connection opened</td>' +
-                '</tr>';
-            };
-            socket.onclose = function (event) {
-                updateState();
-                commsLog.innerHTML += '<tr>' +
-                    '<td colspan="3" class="commslog-data">Connection closed. Code: ' + htmlEscape(event.code) + '. Reason: ' + htmlEscape(event.reason) + '</td>' +
-                '</tr>';
-            };
-            socket.onerror = updateState;
-            socket.onmessage = function (event) {
-                commsLog.innerHTML += '<tr>' +
-                    '<td class="commslog-server">Server</td>' +
-                    '<td class="commslog-client">Client</td>' +
-                    '<td class="commslog-data">' + htmlEscape(event.data) + '</td></tr>';
-            };
-        };
-
-        function htmlEscape(str) {
-            return str.toString()
-                .replace(/&/g, '&amp;')
-                .replace(/"/g, '&quot;')
-                .replace(/'/g, '&#39;')
-                .replace(/</g, '&lt;')
-                .replace(/>/g, '&gt;');
-        }
-    </script>
-</body>
-</html>

src/DataStreamSuite/ColumnMapExpressions/ColumnMapExpressions.csproj

@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>net8.0</TargetFramework>
+    <TargetFramework>net7.0</TargetFramework>
     <ImplicitUsings>enable</ImplicitUsings>
     <Nullable>enable</Nullable>
   </PropertyGroup>

src/DataStreamSuite/DataStream/DataStream.csproj

@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>net8.0</TargetFramework>
+    <TargetFramework>net7.0</TargetFramework>
     <Nullable>enable</Nullable>
   </PropertyGroup>
 

src/DataStreamSuite/DataStream/DataStreamExtensions.cs

@@ -1,26 +0,0 @@
-namespace Bts.DataStream;
-
-using BCG;
-
-using Spark.Core.Disposables;
-
-using System;
-using System.Reactive.Linq;
-
-public static class DataStreamExtensions {
-   public static ViewStream AsViewStream(this IObservable<DataPacket> source) =>
-      source as ViewStream ?? new ObservableViewStream(source);
-
-   public static IObservable<DataPacket> AsObservable(this ViewStream source) {
-      return source as IObservable<DataPacket> ?? Observable.Create<DataPacket>(Subscribe);
-
-      IDisposable Subscribe(IObserver<DataPacket> observer) {
-         source.onChange += OnChange;
-         return Disposable.Create(() => source.onChange -= OnChange);
-
-         void OnChange(object? newValue) =>
-            observer.OnNext(newValue as DataPacket ?? throw new ArgumentException(
-               $"Expected DataPacket, got {newValue?.GetType()}", nameof(newValue)));
-      }
-   }
-}

src/DataStreamSuite/DataStream/ObservableViewStream.cs

@@ -1,34 +0,0 @@
-namespace Bts.DataStream;
-
-using BCG;
-
-using bts;
-
-using System;
-
-public class ObservableViewStream : ViewStream, IObservable<DataPacket>, IDisposable {
-   readonly IObservable<DataPacket> source;
-   IDisposable? subscription;
-
-   public ObservableViewStream(IObservable<DataPacket> source) =>
-      this.source = source;
-
-   public void Dispose() {
-      subscription?.Dispose();
-      subscription = null;
-   }
-
-   protected override void myOnFirstSubscriber() {
-      Log.isnull(subscription);
-      subscription = source.Subscribe(myFireEvent);
-   }
-
-   protected override void myOnLastSubscriber() {
-      Log.notnull(subscription);
-      subscription.Dispose();
-      subscription = null;
-   }
-
-   IDisposable IObservable<DataPacket>.Subscribe(IObserver<DataPacket> observer) =>
-      source.Subscribe(observer);
-}

src/DataStreamSuite/DataStream/Primitives/FileStreams/LoaderStream.cs

@@ -30,8 +30,8 @@ namespace BCG
            {
               using (FileStream fs = new FileStream(fileName, FileMode.Open, FileAccess.Read))
               {
-#pragma warning disable SYSLIB0011
                   BinaryFormatter bf = new BinaryFormatter();
+#pragma warning disable SYSLIB0011
                   BlueTable bt = (BlueTable)bf.Deserialize(fs);
 #pragma warning restore SYSLIB0011
                   mySetRealSource(new BlueRowCollectionStaticStream(bt));

src/DataStreamSuite/DataStream/Primitives/MongoDB/MongoCollectionStream.cs

@@ -1,203 +0,0 @@
-namespace Bts.DataStream;
-
-using BCG;
-
-using bts;
-
-using Bts.DataStreamCore;
-
-using mbts;
-
-using MongoDB.Bson;
-using MongoDB.Driver;
-
-using Spark.Core.Disposables;
-
-using System;
-using System.Collections.Generic;
-using System.Diagnostics.CodeAnalysis;
-using System.Reactive.Subjects;
-using System.Threading;
-using System.Threading.Tasks;
-
-public class MongoCollectionStream : ViewStream, IObservable<DataPacket> {
-   readonly string collectionName;
-   readonly string databaseName;
-   readonly string url;
-   readonly object syncRoot = new();
-   readonly CancellationTokenSource cts = new();
-   readonly Subject<DataPacket> subject = new();
-
-   bool hasStarted = false;
-   IBlueRowFactory<BsonDocument>? rowFactory;
-   MongoClient? clientBacking;
-   IMongoDatabase? databaseBacking;
-   IMongoCollection<BsonDocument>? collectionBacking = null;
-   BlueTableImmutable? table = null;
-
-   public MongoCollectionStream()
-      : this(
-         Environment.GetEnvironmentVariable("MONGO_DB_COLL") ?? string.Empty,
-         Environment.GetEnvironmentVariable("MONGO_DB_NAME") ?? string.Empty,
-         Environment.GetEnvironmentVariable("MONGO_DB_URL") ?? string.Empty) {
-   }
-
-   public MongoCollectionStream(string collectionName)
-      : this(
-         collectionName,
-         Environment.GetEnvironmentVariable("MONGO_DB_NAME") ?? string.Empty,
-         Environment.GetEnvironmentVariable("MONGO_DB_URL") ?? string.Empty) {
-   }
-
-   public MongoCollectionStream(string collectionName, string databaseName)
-      : this(
-         collectionName,
-         databaseName,
-         Environment.GetEnvironmentVariable("MONGO_DB_URL") ?? string.Empty) {
-   }
-
-   public MongoCollectionStream(string collectionName, string databaseName, string url)
-      : this(collectionName, databaseName, url, null) { }
-
-   internal MongoCollectionStream(
-      string collectionName, string databaseName, string url, IBlueRowFactory<BsonDocument>? rowFactory) {
-      this.collectionName = collectionName;
-      this.databaseName = databaseName;
-      this.url = url;
-      this.rowFactory = rowFactory;
-      mySetRealSource(new ObservableViewStream(this));
-   }
-
-   MongoClient client => clientBacking ??= new(url);
-   IMongoDatabase database => databaseBacking ??= client.GetDatabase(databaseName);
-   IMongoCollection<BsonDocument>? collection {
-      get => Volatile.Read(ref collectionBacking);
-      set => Volatile.Write(ref collectionBacking, value);
-   }
-
-   public IDisposable Subscribe(IObserver<DataPacket> observer) {
-      lock (syncRoot) {
-         if (hasStarted) {
-            if (table is not null) {
-               // The first update has already been fired. Seed observer w/ current state.
-               observer.OnNext(new DataPacket(table, table, new BlueTable(table.schema)));
-            }
-            return subject.Subscribe(observer);
-         }
-         hasStarted = true;
-      }
-      var subscription = subject.Subscribe(observer);
-      // Retrieve collection snapshot to bootstrap sequence
-      initTable().ignore();
-      // Watch changes
-      Task.Run(watchChanges);
-      return Disposable.Create(Dispose);
-
-      void Dispose() {
-         Log.Gen.info("Disposing MongoDbChangeObservable subscription");
-         subscription.Dispose();
-         cts.Cancel();
-         cts.Dispose();
-      }
-   }
-
-   protected virtual IBlueRowFactory<BsonDocument> getRowFactory(IEnumerable<BsonDocument> docs) =>
-      MongoSchemaAdaptor.InferSchema(docs);
-
-   async Task watchChanges() {
-      Log.Gen.info(
-         $"MongoCollectionStreamSource. Watching changes. thread: {Environment.CurrentManagedThreadId}");
-      while (collection is null) {
-         await Task.Delay(100);
-      }
-      Log.notnull(collection);
-      using var cursor = collection.Watch(new ChangeStreamOptions {
-         FullDocument = ChangeStreamFullDocumentOption.UpdateLookup
-      });
-      try {
-         while (await cursor.MoveNextAsync(cts.Token)) {
-            // Ignore while waiting for init
-            lock (syncRoot) {
-               if (table is null) {
-                  continue;
-               }
-            }
-            // schemaAdaptor is initialized after table; redundantly assert both
-            // are non-null to be safe, and clarify expectations.
-            Log.notnull(rowFactory);
-            Log.notnull(table);
-
-            var bd = table.ToDataPacketBuilder();
-            foreach (var ch in cursor.Current) {
-               var opDescJson = ch.OperationDescription?.ToJson() ?? string.Empty;
-               var updDescJson = ch.UpdateDescription?.ToJson() ?? string.Empty;
-               Log.Gen.info(
-                  $"MongoCollectionStream.watchChanges. Doc changed. type: {ch.OperationType} " +
-                  $"changes:\n\t\t{updDescJson}");
-               switch (ch.OperationType) {
-                  case ChangeStreamOperationType.Insert: {
-                        bd.AddOrUpdate(Row());
-                        break;
-                     }
-                  case ChangeStreamOperationType.Update: {
-                        bd.Remove(OldRow().Id());
-                        bd.AddOrUpdate(Row());
-                        break;
-                     }
-                  case ChangeStreamOperationType.Replace: {
-                        bd.Remove(OldRow().Id());
-                        bd.AddOrUpdate(Row());
-                        break;
-                     }
-                  case ChangeStreamOperationType.Delete: {
-                        bd.Remove(OldRow().Id());
-                        break;
-                     }
-                  default:
-                     Log.assert(false, $"Unsupported op type '{ch.OperationType}'");
-                     break;
-               }
-
-               IBlueRow Row() =>
-                  rowFactory.GetBlueRow(ch.FullDocumentBeforeChange);
-
-               IBlueRow OldRow() =>
-                  rowFactory.GetBlueRow(ch.FullDocumentBeforeChange);
-            }
-            var dp = bd.ToDataPacket();
-            if (!dp.HasChanges()) {
-               Log.Gen.warn(
-                  $"MongoDbChangeObservable Ignoring update because it didn't change any rows.");
-               continue;
-            }
-            lock (syncRoot) {
-               table = (BlueTableImmutable)dp.newRows;
-               subject.OnNext(dp);
-            }
-         }
-      } catch (TaskCanceledException ex) {
-         Log.Gen.warn(
-            $"MongoDbChangeObservable 'Watch' task cancelled (this is " +
-            $"expected if subscription was disposed). {ex}");
-      }
-   }
-
-
-   [MemberNotNull(nameof(collection))]
-   async Task initTable() {
-      collection = database.GetCollection<BsonDocument>(collectionName);
-      var cursor = collection.Find(Builders<BsonDocument>.Filter.Empty).ToCursor();
-      var docList = await cursor.ToListAsync();
-      rowFactory ??= MongoSchemaAdaptor.InferSchema(docList);
-      var firstTable = new BlueTableImmutable(rowFactory.Schema).ToDataPacketBuilder();
-      foreach (var doc in docList) {
-         var row = rowFactory.GetBlueRow(doc);
-         firstTable.AddOrUpdate(row);
-      }
-      var dp = firstTable.ToDataPacket();
-      lock (syncRoot) {
-         table = (BlueTableImmutable)dp.newRows;
-         subject.OnNext(dp);
-      }
-   }
-}

src/DataStreamSuite/DataStream/Primitives/MongoDB/MongoDBStream.cs

@@ -1,210 +1,212 @@
-namespace BCG;
-
-using BCG.Utilities.General;
-
-using mbts.spark;
-
-using MongoDB.Bson;
-using MongoDB.Driver;
-
 using System;
 using System.Collections.Generic;
+using MongoDB.Driver;
+using MongoDB.Bson;
+using BCG;
+using BCG.Utilities.General;
+using ZstdSharp.Unsafe;
+using System.Runtime.CompilerServices;
+using mbts.spark;
 
-[DataStreamUserRespresentation("mongodb_sql")]
-public class MongoDBSQLStream : 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
+namespace BCG {
+    [DataStreamUserRespresentation("mongodb_sql")]
+    public class MongoDBSQLStream : ViewStream, IWorker {
+        private ViewStreamDatabase _vsd;
+        private readonly string _connection_string, _db_name, _collection_name;
+        private MongoClient _client;
+        private BlueTable _table;
 
-   public MongoDBSQLStream(string connection_string, string db_name, string collection_name)
-   : this(connection_string, db_name, collection_name, ViewStreamDatabase.instance) {
+        // 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, 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);
-   }
+        public MongoDBSQLStream(string connection_string, string db_name, string collection_name)
+        : this(connection_string, db_name, collection_name, ViewStreamDatabase.instance) {
 
-   protected override void myOnFirstSubscriber() {
-      MasterWorker.getInstance(false).addWorker(this, TimeSpan.FromSeconds(1));
-   }
+        }
+        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 myOnLastSubscriber() {
-      MasterWorker.getInstance(false).removeWorker(this);
-   }
+        protected override void myOnFirstSubscriber() {
+            MasterWorker.getInstance(false).addWorker(this, TimeSpan.FromSeconds(1));
+        }
 
-   public void doWork() {
-      _read_mogodb();
-   }
+        protected override void myOnLastSubscriber() {
+            MasterWorker.getInstance(false).removeWorker(this);
+        }
 
-   private void _read_mogodb() {
-      HighPerformanceTimer timer = new HighPerformanceTimer();
-      timer.start();
-      // Access the collection
-      IMongoCollection<BsonDocument> collection = _database.GetCollection<BsonDocument>(name: _collection_name);
+        public void doWork() {
+            _read_mogodb();
+        }
 
-      // 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($"document: {document} json: {document.ToJson()}");
-         if (_table == null) {
-            _init_table(document);
-         }
-         _add_row(document);
-      }
-      timer.stop();
-      bts.Log.Gen.info($"MongoDBStream time to read {_collection_name} {timer.lastIntervalTime} msecs");
-      timer.start();
-      var dp = BlueDataUtility.build_dp_inc(_table, myLastValue == null ? null : myLastValue as DataPacket, true);
-      timer.stop();
-      bts.Log.Gen.info($"MongoDBStream time to compare tables :{timer.lastIntervalTime} msecs");
-      if (dp.addedRows.Count == 0 && dp.deletedRows.Count == 0)
-         return;
-      myFireEvent(dp);
-   }
+        private void _read_mogodb() {
+            HighPerformanceTimer timer = new HighPerformanceTimer();
+            timer.start();
+            // Access the collection
+            IMongoCollection<BsonDocument> collection = _database.GetCollection<BsonDocument>(name: _collection_name);
 
-   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);
-   }
+            // 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($"document: {document} json: {document.ToJson()}");
+                if (_table == null) {
+                    _init_table(document);
+                }
+                _add_row(document);
+            }
+            timer.stop();
+            bts.Log.Gen.info($"MongoDBStream time to read {_collection_name} {timer.lastIntervalTime} msecs");
+            timer.start();
+            var dp = BlueDataUtility.build_dp_inc(_table, myLastValue == null ? null : myLastValue as DataPacket, true);
+            timer.stop();
+            bts.Log.Gen.info($"MongoDBStream time to compare tables :{timer.lastIntervalTime} msecs");
+            if (dp.addedRows.Count == 0 && dp.deletedRows.Count == 0)
+                return;
+            myFireEvent(dp);
+        }
 
-   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);
-   }
-}
+        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);
+        }
 
-[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;
+        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);
+        }
+    }
 
-   // Access the database
-   private IMongoDatabase _database;
-   private IDictionary<string, int> _id_map = new Dictionary<string, int>();
-   // mongodb://192.168.1.80:27017
+    [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;
 
-   public MongoDBStream(string connection_string, string db_name, string collection_name)
-   : this(connection_string, db_name, collection_name, ViewStreamDatabase.instance) {
+        // 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, 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);
-   }
+        public MongoDBStream(string connection_string, string db_name, string collection_name)
+        : this(connection_string, db_name, collection_name, ViewStreamDatabase.instance) {
 
-   protected override void myOnFirstSubscriber() {
-      MasterWorker.getInstance(false).addWorker(this, TimeSpan.FromSeconds(1));
-   }
+        }
+        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 myOnLastSubscriber() {
-      MasterWorker.getInstance(false).removeWorker(this);
-   }
+        protected override void myOnFirstSubscriber() {
+            MasterWorker.getInstance(false).addWorker(this, TimeSpan.FromSeconds(1));
+        }
 
-   public void doWork() {
-      _read_mogodb();
-   }
+        protected override void myOnLastSubscriber() {
+            MasterWorker.getInstance(false).removeWorker(this);
+        }
 
-   private void _read_mogodb() {
-      HighPerformanceTimer timer = new HighPerformanceTimer();
-      timer.start();
-      // Access the collection
-      IMongoCollection<BsonDocument> collection = _database.GetCollection<BsonDocument>(name: _collection_name);
+        public void doWork() {
+            _read_mogodb();
+        }
 
-      // 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($"document: {document} json: {document.ToJson()}");
-         if (_table == null) {
-            _init_table(document);
-         }
-         _add_doc(document);
-      }
-      timer.stop();
-      bts.Log.Gen.info($"MongoDBStream time to read {_collection_name} {timer.lastIntervalTime} msecs");
-      timer.start();
-      var dp = BlueDataUtility.build_dp_inc(_table, myLastValue == null ? null : myLastValue as DataPacket, true);
-      timer.stop();
-      bts.Log.Gen.info($"MongoDBStream time to compare tables :{timer.lastIntervalTime} msecs");
-      if (dp.addedRows.Count == 0 && dp.deletedRows.Count == 0)
-         return;
-      myFireEvent(dp);
-   }
+        private void _read_mogodb() {
+            HighPerformanceTimer timer = new HighPerformanceTimer();
+            timer.start();
+            // Access the collection
+            IMongoCollection<BsonDocument> collection = _database.GetCollection<BsonDocument>(name: _collection_name);
 
-   private void _init_table(BsonDocument doc_row) {
-      bts.Log.assert(_table == null);
-      var schema = BlueDataUtility.form_schema($"{_database}_{_table}",
-      Tuple.Create("id", TypeCode.Int32),
-      Tuple.Create("doc_id", TypeCode.String),
-      Tuple.Create("key", TypeCode.String),
-      Tuple.Create("value", TypeCode.String));
-      _table = new BlueTable(schema);
-   }
+            // Fetch all documents from the collection
+            var documents = collection.Find(Builders<BsonDocument>.Filter.Empty).ToCursor();
+            _table = _table == null ? null : new BlueTable(_table.schema);
+            // Iterate through the documents and print values
+            foreach (var document in documents.ToEnumerable()) {
+                bts.Log.Gen.info($"document: {document} json: {document.ToJson()}");
+                if (_table == null) {
+                    _init_table(document);
+                }
+                _add_doc(document);
+            }
+            timer.stop();
+            bts.Log.Gen.info($"MongoDBStream time to read {_collection_name} {timer.lastIntervalTime} msecs");
+            timer.start();
+            var dp = BlueDataUtility.build_dp_inc(_table, myLastValue == null ? null : myLastValue as DataPacket, true);
+            timer.stop();
+            bts.Log.Gen.info($"MongoDBStream time to compare tables :{timer.lastIntervalTime} msecs");
+            if (dp.addedRows.Count == 0 && dp.deletedRows.Count == 0)
+                return;
+            myFireEvent(dp);
+        }
 
-   private void _add_doc(BsonDocument doc) {
-      var doc_id_bson = doc["_id"];
-      var doc_id = doc_id_bson.ToString();
-      Func<string, string, int> get_id = (string doc_id, string key) => {
-         string hash_key = $"{doc_id}_{key}";
-         int id = 0;
-         if (!_id_map.TryGetValue(hash_key, out id)) {
-            id = _id_map.Count;
-            _id_map.Add(hash_key, id);
-         }
-         return id;
-      };
-      foreach (var n in doc.Names) {
-         string key = n;
-         var id = get_id(doc_id, key);
-         MutableBlueRow nr = new MutableBlueRow(_table.schema);
-         var val = doc[n].ToString();
-         nr.setValue("id", id);
-         nr.setValue("doc_id", doc_id);
-         nr.setValue("key", key);
-         nr.setValue("value", val);
-         _table.addRow(nr);
-      }
-   }
-}
+        private void _init_table(BsonDocument doc_row) {
+            bts.Log.assert(_table == null);
+            var schema = BlueDataUtility.form_schema($"{_database}_{_table}",
+            Tuple.Create("id", TypeCode.Int32),
+            Tuple.Create("doc_id", TypeCode.String),
+            Tuple.Create("key", TypeCode.String),
+            Tuple.Create("value", TypeCode.String));
+            _table = new BlueTable(schema);
+        }
+
+        private void _add_doc(BsonDocument doc) {
+            var doc_id_bson = doc["_id"];
+            var doc_id = doc_id_bson.ToString();
+            Func<string, string, int> get_id = (string doc_id, string key) => {
+                string hash_key = $"{doc_id}_{key}";
+                int id = 0;
+                if (!_id_map.TryGetValue(hash_key, out id)) {
+                    id = _id_map.Count;
+                    _id_map.Add(hash_key, id);
+                }
+                return id;
+            };
+            foreach (var n in doc.Names) {
+                string key = n;
+                var id = get_id(doc_id, key);
+                MutableBlueRow nr = new MutableBlueRow(_table.schema);
+                var val = doc[n].ToString();
+                nr.setValue("id", id);
+                nr.setValue("doc_id", doc_id);
+                nr.setValue("key", key);
+                nr.setValue("value", val);
+                _table.addRow(nr);
+            }
+        }
+    }
+
+}

src/DataStreamSuite/DataStream/Primitives/MongoDB/MongoDbExtensions.cs

@@ -1,63 +0,0 @@
-namespace Bts.DataStream;
-
-using MongoDB.Bson;
-
-using System;
-
-public static class MongoDbExtensions {
-   public static BsonArray GetArray(this BsonDocument doc, string elementName) =>
-      doc[elementName].AsBsonArray;
-
-   public static BsonArray? GetArrayOrDefault(this BsonDocument doc, string elementName) =>
-      doc.TryGetValue(elementName, out var val) && val.IsBsonArray ?
-         val.AsBsonArray : null;
-
-   public static string GetString(this BsonDocument doc, string elementName) =>
-      doc[elementName].AsString;
-
-   public static string? GetStringOrDefault(this BsonDocument doc, string elementName) =>
-      doc.TryGetValue(elementName, out var val) && val.IsString ?
-         val.AsString : null;
-
-   public static int GetInt32(this BsonDocument doc, string elementName) =>
-      doc[elementName].AsInt32;
-
-   public static int? GetInt32OrDefault(this BsonDocument doc, string elementName) =>
-      doc.TryGetValue(elementName, out var val) && val.IsInt32 ?
-         val.AsInt32 : null;
-
-   public static long GetInt64(this BsonDocument doc, string elementName) =>
-      doc[elementName].AsInt64;
-
-   public static long? GetInt64OrDefault(this BsonDocument doc, string elementName) =>
-      doc.TryGetValue(elementName, out var val) && val.IsInt64 ?
-         val.AsInt64 : null;
-
-   public static double GetDouble(this BsonDocument doc, string elementName) =>
-      doc[elementName].AsDouble;
-
-   public static double? GetDoubleOrDefault(this BsonDocument doc, string elementName) =>
-      doc.TryGetValue(elementName, out var val) && val.IsDouble ?
-         val.AsDouble : null;
-
-   public static DateTime GetDateTime(this BsonDocument doc, string elementName) =>
-      doc[elementName].ToUniversalTime();
-
-   public static DateTime? GetDateTimeOrDefault(this BsonDocument doc, string elementName) =>
-      doc.TryGetValue(elementName, out var val) && val.IsValidDateTime ?
-         val.ToUniversalTime() : null;
-
-   public static DateTime GetTimestamp(this BsonDocument doc, string elementName) =>
-      doc[elementName].ToUniversalTime();
-
-   public static DateTime? GetTimestampOrDefault(this BsonDocument doc, string elementName) =>
-      doc.TryGetValue(elementName, out var val) && val.IsValidDateTime ?
-         val.ToUniversalTime() : null;
-
-   public static ObjectId GetObjectId(this BsonDocument doc, string elementName) =>
-      doc[elementName].AsObjectId;
-
-   public static ObjectId? GetObjectIdOrDefault(this BsonDocument doc, string elementName) =>
-      doc.TryGetValue(elementName, out var val) && val.IsObjectId ?
-         val.AsObjectId : null;
-}

src/DataStreamSuite/DataStream/Primitives/MongoDB/MongoSchemaAdaptor.cs

@@ -1,57 +0,0 @@
-namespace Bts.DataStream;
-
-using BCG;
-
-using bts;
-
-using MongoDB.Bson;
-
-using System;
-using System.Collections.Generic;
-
-public static class MongoSchemaAdaptor {
-   public static BlueTableSchemaAdaptor<BsonDocument> InferSchema(IEnumerable<BsonDocument> docs) {
-      var schemaAdaptor = new BlueTableSchemaAdaptor<BsonDocument>("MongoCollectionStream");
-      foreach (var doc in docs) {
-         foreach (var el in doc) {
-            if (schemaAdaptor.Contains(el.Name)) {
-               continue;
-            }
-            switch (el.Value.BsonType) {
-               case BsonType.Array:
-                  schemaAdaptor.AddColumn(el.Name, d => d.GetArrayOrDefault(el.Name)?.ToString() ?? string.Empty);
-                  break;
-               case BsonType.String:
-                  schemaAdaptor.AddColumn(el.Name, d => d.GetStringOrDefault(el.Name) ?? string.Empty);
-                  break;
-               case BsonType.Int32:
-                  schemaAdaptor.AddColumn(el.Name, d => d.GetInt32OrDefault(el.Name));
-                  break;
-               case BsonType.Int64:
-                  schemaAdaptor.AddColumn(el.Name, d => d.GetInt64OrDefault(el.Name));
-                  break;
-               case BsonType.Double:
-                  schemaAdaptor.AddColumn(el.Name, d => d.GetDoubleOrDefault(el.Name));
-                  break;
-               case BsonType.DateTime:
-                  schemaAdaptor.AddColumn(el.Name, d => d.GetDateTimeOrDefault(el.Name));
-                  break;
-               case BsonType.Timestamp:
-                  schemaAdaptor.AddColumn(el.Name, d => d.GetTimestampOrDefault(el.Name));
-                  break;
-               case BsonType.ObjectId:
-                  schemaAdaptor.AddColumn(el.Name, d => d.GetObjectIdOrDefault(el.Name)?.ToString());
-                  break;
-               case BsonType.Null:
-                  Log.Gen.warn(
-                     $"Ignoring column '{el.Name}' because at least one element is null");
-                  break;
-               default:
-                  throw new InvalidOperationException(
-                     $"Unsupported BsonType '{el.Value.BsonType}'");
-            }
-         }
-      }
-      return schemaAdaptor;
-   }
-}

src/DataStreamSuite/DataStreamCore/BlueData/BlueRowEqualityComparer.cs

@@ -1,24 +0,0 @@
-namespace Bts.DataStreamCore;
-
-using BCG;
-
-using System;
-using System.Collections.Generic;
-using System.Diagnostics.CodeAnalysis;
-using System.Linq;
-
-public class BlueRowEqualityComparer : IEqualityComparer<IBlueRow> {
-   public static BlueRowEqualityComparer Instance { get; } = new();
-
-   public bool Equals(IBlueRow x, IBlueRow y) =>
-      x.schema.columnInfo.SequenceEqual(y.schema.columnInfo) &&
-      x.Values.Cast<object>().SequenceEqual(y.Values.Cast<object>());
-
-   public int GetHashCode([DisallowNull] IBlueRow obj) {
-      var hash = new HashCode();
-      foreach (var v in obj.Values) {
-         hash.Add(v?.GetHashCode() ?? 0);
-      }
-      return hash.ToHashCode();
-   }
-}

src/DataStreamSuite/DataStreamCore/BlueData/BlueTable.cs

@@ -1,15 +1,8 @@
-using Bts.DataStreamCore;
-
-using Spark.DataStream;
-
 using System;
 using System.Collections;
 using System.Collections.Generic;
 using System.Data;
-using System.Diagnostics.CodeAnalysis;
-
 //using BCG.Utilities;
-
 using System.Linq;
 
 namespace BCG {
@@ -17,7 +10,7 @@ namespace BCG {
    /// Anologue of the dotNet DataTable.
    /// </summary>
    [Serializable]
-   public class BlueTable : IBlueRowCollection, IDictionary<int, IBlueRow> {
+   public class BlueTable : IBlueRowCollection {
       /// <summary>
       /// Hashtable indexed on "id" to speed up removes
       /// </summary>
@@ -93,12 +86,6 @@ namespace BCG {
                throw new BlueDataException("ID " + id.ToString() + " does not exist in table " + mySchema.tableName);
             return (IBlueRow)row;
          }
-         set {
-            if ((int)value["id"] != id) {
-               throw new ArgumentException("id arg not equal to row's actual id", nameof(id));
-            }
-            changeRow(value);
-         }
       }
 
       /// <summary>
@@ -215,8 +202,6 @@ namespace BCG {
 
       #endregion
 
-      public IDictionary<int, IBlueRow> AsDictionary() => this;
-
       #region ICollection members
       public virtual IEnumerator GetEnumerator() //{return myRows.GetEnumerator ();}
       { return myIdIndex.Values.GetEnumerator(); }
@@ -229,55 +214,5 @@ namespace BCG {
 
       public virtual int Count { get { return myIdIndex.Count; } }
       #endregion
-
-      #region IDictionary<int, IBlueRow> members
-      public void Add(int key, IBlueRow value) {
-         throw new NotImplementedException();
-      }
-
-      bool IDictionary<int, IBlueRow>.ContainsKey(int key) =>
-         containsID(key);
-
-      bool IDictionary<int, IBlueRow>.Remove(int key) =>
-         deleteRow(key);
-
-      bool IDictionary<int, IBlueRow>.TryGetValue(
-         int key, [MaybeNullWhen(false)] out IBlueRow value) =>
-         tryGetValue(key, out value);
-
-      void ICollection<KeyValuePair<int, IBlueRow>>.Add(KeyValuePair<int, IBlueRow> item) =>
-         addRow(item.Value);
-
-      void ICollection<KeyValuePair<int, IBlueRow>>.Clear() =>
-         clear();
-
-      bool ICollection<KeyValuePair<int, IBlueRow>>.Contains(KeyValuePair<int, IBlueRow> item) =>
-         tryGetValue(item.Key, out var r)
-         && BlueRowEqualityComparer.Instance.Equals(r, item.Value);
-
-      void ICollection<KeyValuePair<int, IBlueRow>>.CopyTo(
-         KeyValuePair<int, IBlueRow>[] array, int arrayIndex) {
-         foreach (DictionaryEntry de in myIdIndex) {
-            array[arrayIndex++] = new((int)de.Key, (IBlueRow)de.Value);
-         }
-      }
-
-      bool ICollection<KeyValuePair<int, IBlueRow>>.Remove(KeyValuePair<int, IBlueRow> item) =>
-         deleteRow(item.Key);
-
-      IEnumerator<KeyValuePair<int, IBlueRow>> IEnumerable<KeyValuePair<int, IBlueRow>>.GetEnumerator() {
-         foreach (DictionaryEntry de in myIdIndex) {
-            yield return new((int)de.Key, (IBlueRow)de.Value);
-         }
-      }
-
-      ICollection<int> IDictionary<int, IBlueRow>.Keys =>
-         GenericCollectionWrapper.Create<int>(myIdIndex.Keys);
-
-      ICollection<IBlueRow> IDictionary<int, IBlueRow>.Values =>
-         GenericCollectionWrapper.Create<IBlueRow>(myIdIndex.Values);
-
-      bool ICollection<KeyValuePair<int, IBlueRow>>.IsReadOnly => false;
-      #endregion
    }
 }

src/DataStreamSuite/DataStreamCore/BlueData/BlueTableImmutable.cs

@@ -1,80 +0,0 @@
-namespace Bts.DataStreamCore;
-
-using BCG;
-
-using System;
-using System.Collections;
-using System.Collections.Immutable;
-
-// I would have named this ImmutableBlueTable, but that was already taken.
-public class BlueTableImmutable : IBlueRowCollection, IImmutableRowCollection {
-   readonly ImmutableDictionary<int, IBlueRow> rows;
-
-   public BlueTableImmutable(IBlueTableSchema schema)
-      : this(schema, ImmutableDictionary<int, IBlueRow>.Empty) { }
-
-   public BlueTableImmutable(IBlueTableSchema schema, ImmutableDictionary<int, IBlueRow> rows) {
-      this.schema = schema;
-      this.rows = rows;
-   }
-
-   public int Count => rows.Count;
-   public bool IsSynchronized => false;
-   public IBlueTableSchema schema { get; }
-   public object SyncRoot => this;
-
-   public IBlueRow this[int id] => rows[id];
-
-   public bool containsID(int id) =>
-      rows.ContainsKey(id);
-
-   public void CopyTo(Array array, int index) {
-      foreach (var r in rows.Values) {
-         array.SetValue(r, index++);
-      }
-   }
-
-   public IEnumerator GetEnumerator() =>
-      rows.Values.GetEnumerator();
-
-   public DataPacketBuilder ToDataPacketBuilder() =>
-      new(this);
-
-   public class DataPacketBuilder {
-      readonly IBlueTableSchema schema;
-      readonly ImmutableDictionary<int, IBlueRow>.Builder table;
-      readonly ImmutableDictionary<int, IBlueRow>.Builder added =
-         ImmutableDictionary<int, IBlueRow>.Empty.ToBuilder();
-      readonly ImmutableDictionary<int, IBlueRow>.Builder removed =
-         ImmutableDictionary<int, IBlueRow>.Empty.ToBuilder();
-
-      public DataPacketBuilder(BlueTableImmutable table) {
-         schema = table.schema;
-         this.table = table.rows.ToBuilder();
-      }
-
-      public void AddOrUpdate(IBlueRow row) {
-         var id = row.Id();
-         added[id] = row;
-         if (table.TryGetValue(id, out var orig)) {
-            removed.Remove(id);
-         }
-      }
-
-      public void Remove(int id) {
-         added.Remove(id);
-         if (table.TryGetValue(id, out var orig)) {
-            removed[id] = orig;
-         }
-      }
-
-      public DataPacket ToDataPacket() {
-         table.RemoveRange(removed.Keys);
-         table.AddRange(added);
-         var newRows = new BlueTableImmutable(schema, table.ToImmutable());
-         var addedRows = new BlueTableImmutable(schema, added.ToImmutable());
-         var removedRows = new BlueTableImmutable(schema, removed.ToImmutable());
-         return new(newRows, addedRows, removedRows);
-      }
-   }
-}

src/DataStreamSuite/DataStreamCore/BlueData/BlueTableSchemaAdaptor.cs

@@ -1,84 +0,0 @@
-#nullable enable
-namespace Bts.DataStream;
-
-using BCG;
-
-using bts.collections;
-
-using System;
-using System.Collections.Generic;
-using System.Linq;
-
-public class BlueTableSchemaAdaptor<T> {
-   readonly string name;
-   readonly List<ColumnAdaptor> columns = [];
-   BlueTableSchema? schema;
-
-   public BlueTableSchemaAdaptor(string name) =>
-      this.name = name;
-
-   public IBlueTableSchema Schema =>
-      schema ??= new BlueTableSchema([.. columns.WrapSelectorRO(c => c.Info)], name);
-
-   public bool Contains(string name) =>
-      columns.Any(c => c.Info.colName == name);
-
-   public void AddColumn(string name, Func<T, int> getValue) =>
-      AddColumn(name, r => getValue(r), typeof(int));
-
-   public void AddColumn(string name, Func<T, int?> getValue) =>
-      AddColumn(name, r => getValue(r) ?? (object)DBNull.Value, typeof(int));
-
-   public void AddColumn(string name, Func<T, long> getValue) =>
-      AddColumn(name, r => getValue(r), typeof(long));
-
-   public void AddColumn(string name, Func<T, long?> getValue) =>
-      AddColumn(name, r => getValue(r) ?? (object)DBNull.Value, typeof(long));
-
-   public void AddColumn(string name, Func<T, double> getValue) =>
-      AddColumn(name, r => getValue(r), typeof(double));
-
-   public void AddColumn(string name, Func<T, double?> getValue) =>
-      AddColumn(name, r => getValue(r) ?? (object)DBNull.Value, typeof(double));
-
-   public void AddColumn(string name, Func<T, DateTime> getValue) =>
-      AddColumn(name, r => getValue(r), typeof(DateTime));
-
-   public void AddColumn(string name, Func<T, DateTime?> getValue) =>
-      AddColumn(name, r => getValue(r) ?? (object)DBNull.Value, typeof(DateTime));
-
-   public void AddColumn(string name, Func<T, string?> getValue) =>
-      AddColumn(name, r => getValue(r) ?? (object)DBNull.Value, typeof(string));
-
-   public void AddColumn(string name, Func<T, object?> getValue, Type dataType) {
-      if (!ColumnInfo.isAllowedType(dataType)) {
-         throw new ArgumentException(
-            $"'{dataType}' is not a supported column type", nameof(dataType));
-      }
-      // Invalidate cached schema (set it to null)
-      schema = null;
-      columns.Add(new ColumnAdaptor(new(name, columns.Count, dataType), r => getValue(r)));
-   }
-
-   public IBlueRow GetBlueRow(T item) {
-      var mbr = new MutableBlueRow(Schema);
-      foreach (var col in columns) {
-         mbr.setValue(col.Info.colNo, col.GetValue(item));
-      }
-      return mbr;
-   }
-
-   class ColumnAdaptor {
-      readonly Func<T, object?> getValue;
-
-      public ColumnAdaptor(ColumnInfo info, Func<T, object?> getValue) {
-         Info = info;
-         this.getValue = getValue;
-      }
-
-      public ColumnInfo Info { get; }
-
-      public object? GetValue(T row) =>
-         getValue(row);
-   }
-}

src/DataStreamSuite/DataStreamCore/BlueData/ColumnInfo.cs

@@ -1,103 +1,95 @@
-using System;
-using System.Text.Json.Serialization;
-
-namespace BCG
-{
-   /// <summary>
-   /// Resprsents information about a column schema, ie its ordinal, the type, the name and constant value or expression. where applicable
-   /// </summary>
-   [Serializable]
-   public class ColumnInfo : IComparable
-   {
-      public static bool isAllowedType (Type t)
-      {
-         return 
-            t.Equals (typeof (System.Int32)) ||
-            t.Equals (typeof (System.Int64)) ||
-            t.Equals (typeof (System.Double)) ||
-            t.Equals (typeof (System.String)) ||
-            t.Equals (typeof (System.DateTime)) ? true :
-            false;
-      }
-
-      //the default column info does not cach values in a lookup table, therefore it is in group 0
-      public ColumnInfo(string colName, int colNo, Type colType)
-         : this(colName, colNo, colType, 0)
-      {
-
-
-      }
-
-      public ColumnInfo(string colName, int colNo, Type colType, short colGroup)
-      {
-         myColName = colName;
-         myColNo = colNo;
-         myColType = colType;
-         myLookupTableGroup = colGroup;
-         myColValue = null;
-      }
-
-
-      public ColumnInfo (string colName, int colNo, object colValue)
-         : this (colName, colNo, colValue.GetType())  {myColValue = colValue == null ? DBNull.Value : colValue;}
-
-      public ColumnInfo (string colName, int colNo, Type colType, object colValue)
-         : this (colName, colNo, colType) 
-      {
-
-         myColValue = colValue == null ? DBNull.Value : colValue;
-      
-      }
-
-
-      public int CompareTo (object obj)
-      {
-         int otherColNo = ((ColumnInfo)(obj)).colNo;
-         if (myColNo < otherColNo)
-            return -1;
-         else if (myColNo > otherColNo)
-            return 1;
-         return 0;
-      }
-
-      //public bool isCalculated{get{return myExpression != null;}}
-
-      public bool isConstant {get{return myColValue != null;}}
-
-      private int myColNo;
-      private string myColName;
-      private Type myColType;
-      //private string myExpression;
-      private object myColValue;
-
-      //no table will ever have more than 65,536 columns
-      //if it does, we are in serious trouble
-      private short myLookupTableGroup;
-
-      [JsonPropertyName("colNo")]
-      public int colNo{get{return myColNo;}}
-
-      [JsonPropertyName("colName")]
-      public string colName {get{return myColName;}}
-
-      [JsonPropertyName("colType")]
-      public Type colType {get{return myColType;}}
-
-
-      //this value corresponds to how the data in the column is serialized. 
-      //if the group number is 0, the values are not stored in a table
-      //if the vlaue is non-zero, all columns with the the same lookup table group are stored in the same lookup table together
-      //are stored together in a lookup table
-
-      
-      [JsonIgnore]
-      public short lookupTableGroup
-      {
-         get { return myLookupTableGroup; }
-         set { myLookupTableGroup = value; }
-      }
-      //public string expression {get{return myExpression;}}
-      [JsonIgnore]
-      public object colValue {get{return myColValue;}}
-   }
-}
+using System;
+
+namespace BCG
+{
+   /// <summary>
+   /// Resprsents information about a column schema, ie its ordinal, the type, the name and constant value or expression. where applicable
+   /// </summary>
+   [Serializable]
+   public class ColumnInfo : IComparable
+   {
+      public static bool isAllowedType (Type t)
+      {
+         return 
+            t.Equals (typeof (System.Int32)) ||
+            t.Equals (typeof (System.Int64)) ||
+            t.Equals (typeof (System.Double)) ||
+            t.Equals (typeof (System.String)) ||
+            t.Equals (typeof (System.DateTime)) ? true :
+            false;
+      }
+
+      //the default column info does not cach values in a lookup table, therefore it is in group 0
+      public ColumnInfo(string colName, int colNo, Type colType)
+         : this(colName, colNo, colType, 0)
+      {
+
+
+      }
+
+      public ColumnInfo(string colName, int colNo, Type colType, short colGroup)
+      {
+         myColName = colName;
+         myColNo = colNo;
+         myColType = colType;
+         myLookupTableGroup = colGroup;
+         myColValue = null;
+      }
+
+
+      public ColumnInfo (string colName, int colNo, object colValue)
+         : this (colName, colNo, colValue.GetType())  {myColValue = colValue == null ? DBNull.Value : colValue;}
+
+      public ColumnInfo (string colName, int colNo, Type colType, object colValue)
+         : this (colName, colNo, colType) 
+      {
+
+         myColValue = colValue == null ? DBNull.Value : colValue;
+      
+      }
+
+
+      public int CompareTo (object obj)
+      {
+         int otherColNo = ((ColumnInfo)(obj)).colNo;
+         if (myColNo < otherColNo)
+            return -1;
+         else if (myColNo > otherColNo)
+            return 1;
+         return 0;
+      }
+
+      //public bool isCalculated{get{return myExpression != null;}}
+
+      public bool isConstant {get{return myColValue != null;}}
+
+      private int myColNo;
+      private string myColName;
+      private Type myColType;
+      //private string myExpression;
+      private object myColValue;
+
+      //no table will ever have more than 65,536 columns
+      //if it does, we are in serious trouble
+      private short myLookupTableGroup;
+
+      public int colNo{get{return myColNo;}}
+      public string colName {get{return myColName;}}
+      public Type colType {get{return myColType;}}
+
+
+      //this value corresponds to how the data in the column is serialized. 
+      //if the group number is 0, the values are not stored in a table
+      //if the vlaue is non-zero, all columns with the the same lookup table group are stored in the same lookup table together
+      //are stored together in a lookup table
+
+      
+      public short lookupTableGroup
+      {
+         get { return myLookupTableGroup; }
+         set { myLookupTableGroup = value; }
+      }
+      //public string expression {get{return myExpression;}}
+      public object colValue {get{return myColValue;}}
+   }
+}

src/DataStreamSuite/DataStreamCore/BlueRowExtensions.cs

@@ -1,11 +0,0 @@
-namespace Bts.DataStreamCore;
-
-using BCG;
-
-using System;
-
-public static class BlueRowExtensions {
-   public static int Id(this IBlueRow row) =>
-      (int)(row["id"] ?? throw new ArgumentException(
-         "Row doesn't have an 'id' column", nameof(row)));
-}

src/DataStreamSuite/DataStreamCore/BlueRowJsonConverter.cs

@@ -1,61 +0,0 @@
-#nullable enable
-using BCG;
-
-using System;
-using System.Text.Json;
-using System.Text.Json.Serialization;
-
-namespace Bts.DataStreamCore;
-
-class BlueRowJsonConverter : JsonConverter<IBlueRow> {
-   IBlueTableSchema? schema = null;
-
-   public override IBlueRow Read(
-      ref Utf8JsonReader reader, Type typeToConvert, JsonSerializerOptions options) {
-      if (schema is null) {
-         throw new InvalidOperationException("Cannot read row from json because schema is null");
-      }
-      var mbr = new MutableBlueRow(schema);
-      int colNum = 0;
-      switch (reader.TokenType) {
-         case JsonTokenType.StartArray:
-            while (reader.Read() && reader.TokenType != JsonTokenType.EndArray) {
-               mbr.setValue(colNum++, readCellValue(ref reader));
-               colNum++;
-            }
-            break;
-         case JsonTokenType.StartObject:
-            while (reader.Read() && reader.TokenType != JsonTokenType.EndObject) {
-               if (reader.TokenType != JsonTokenType.PropertyName) {
-                  throw new InvalidOperationException(
-                     "Expected 'PropertyName' immediately after 'StartObject' token in row json");
-               }
-               var colName = reader.GetString();
-               if (!reader.Read()) {
-                  throw new InvalidOperationException(
-                     "Failed to read token immediately after 'PropertyName' token in row json");
-               }
-               mbr.setValue(colName, readCellValue(ref reader));
-            }
-            break;
-      }
-      if (mbr.Count != schema.columnInfo.Length) {
-         throw new InvalidOperationException(
-            $"Row json array length '{mbr.Count}' does not match the schema's " +
-            $"column length '{schema.columnInfo.Length}'.");
-      }
-      return mbr;
-
-      static object? readCellValue(ref Utf8JsonReader reader) =>
-         reader.TokenType switch {
-            JsonTokenType.String => reader.GetString(),
-            JsonTokenType.Number => reader.GetDouble(),
-            JsonTokenType.True or JsonTokenType.False => reader.GetBoolean(),
-            _ => throw new InvalidOperationException("Failed to read cell value"),
-         };
-   }
-
-   public override void Write(Utf8JsonWriter writer, IBlueRow value, JsonSerializerOptions options) {
-      throw new NotImplementedException();
-   }
-}

src/DataStreamSuite/DataStreamCore/DataPacketJsonConverter.cs

@@ -1,155 +0,0 @@
-#nullable enable
-using BCG;
-
-using Spark.Core.Json;
-
-using System;
-using System.Collections.Generic;
-using System.Linq;
-using System.Text.Json;
-using System.Text.Json.Serialization;
-
-namespace Bts.DataStreamCore;
-
-class DataPacketJsonConverter : JsonConverter<DataPacket> {
-   /// <summary>
-   /// Whether or not to include a field for current rows (i.e., snapshot of current state). By
-   /// default, only incremental changes are included ('added' and 'deleted').
-   /// </summary>
-   public bool IncludeCurrent { get; set; }
-
-   /// <summary>
-   /// Whether to treat rows as objects (name/value pairs), or arrays (list of values). Arrays
-   /// result in smaller payloads, but aren't as easy to read as name/value pairs (for mere humans).
-   /// </summary>
-   public bool UseObjectRows { get; set; }
-
-   public override DataPacket? Read(ref Utf8JsonReader reader, Type typeToConvert, JsonSerializerOptions options) {
-      if (!reader.ReadObject()) {
-         return null;
-      }
-      if (!reader.ReadPropertyName(out var prop)) {
-         return null;
-      }
-      if (!reader.Read()) {
-         return null;
-      }
-      if (prop == "added") {
-         var added = new List<MutableBlueRow>();
-         if (reader.TokenType != JsonTokenType.StartArray) {
-            return null;
-         }
-         while (true) {
-            if (!reader.Read()) {
-               break;
-            }
-            if (reader.TokenType != JsonTokenType.StartArray || !reader.Read()) {
-               return null;
-            }
-            switch (reader.TokenType) {
-               case JsonTokenType.String:
-                  // DAMNIT! Need the schema.
-                  break;
-            }
-         }
-      }
-      return null;
-   }
-
-   public override void Write(Utf8JsonWriter writer, DataPacket value, JsonSerializerOptions options) {
-      using var _ = writer.WriteObject();
-      using (writer.WriteArray("schema")) {
-         foreach (var col in value.schema.columnInfo) {
-            using (writer.WriteObject()) {
-               writer.WriteString("name", col.colName);
-               writer.WriteNumber("index", col.colNo);
-               // TODO: use language agnostic type names (e.g., 'string', 'integer', 'float', 'date' etc.)
-               writer.WriteString("type", col.colType.ToString());
-            }
-         }
-      }
-
-      var cellWriters = value.schema.columnInfo.Select(getCellWriter).ToList();
-      using (writer.WriteArray("added")) {
-         foreach (IBlueRow row in value.addedRows) {
-            using (writer.WriteArray()) {
-               for (int i = 0; i < cellWriters.Count; i++) {
-                  cellWriters[i](row[i]);
-               }
-            }
-         }
-      }
-      using (writer.WriteArray("deleted")) {
-         foreach (IBlueRow row in value.deletedRows) {
-            using (writer.WriteArray()) {
-               for (int i = 0; i < cellWriters.Count; i++) {
-                  cellWriters[i](row[i]);
-               }
-            }
-         }
-      }
-      if (IncludeCurrent) {
-         using (writer.WriteArray("current")) {
-            foreach (IBlueRow row in value.newRows) {
-               using (writer.WriteArray()) {
-                  for (int i = 0; i < cellWriters.Count; i++) {
-                     cellWriters[i](row[i]);
-                  }
-               }
-            }
-         }
-      }
-
-      Action<object?> getCellWriter(ColumnInfo colInfo) {
-         var writeVal = getCellValueWriter(colInfo);
-         if (!UseObjectRows) {
-            return writeVal;
-         }
-         return v => {
-            writer.WritePropertyName(colInfo.colName);
-            writeVal(v);
-         };
-      }
-
-      Action<object?> getCellValueWriter(ColumnInfo colInfo) {
-         var t = colInfo.colType;
-         if (t == typeof(int)) {
-            return nullCheckWrapper(v => writer.WriteNumberValue((int)v));
-         }
-         if (t == typeof(uint)) {
-            return nullCheckWrapper(v => writer.WriteNumberValue((uint)v));
-         }
-         if (t == typeof(long)) {
-            return nullCheckWrapper(v => writer.WriteNumberValue((long)v));
-         }
-         if (t == typeof(ulong)) {
-            return nullCheckWrapper(v => writer.WriteNumberValue((ulong)v));
-         }
-         if (t == typeof(short)) {
-            return nullCheckWrapper(v => writer.WriteNumberValue((short)v));
-         }
-         if (t == typeof(ushort)) {
-            return nullCheckWrapper(v => writer.WriteNumberValue((ushort)v));
-         }
-         if (t == typeof(double)) {
-            return nullCheckWrapper(v => writer.WriteNumberValue((double)v));
-         }
-         if (t == typeof(float)) {
-            return nullCheckWrapper(v => writer.WriteNumberValue((float)v));
-         }
-         if (t == typeof(bool)) {
-            return nullCheckWrapper(v => writer.WriteBooleanValue((bool)v));
-         }
-         return nullCheckWrapper(v => writer.WriteStringValue(v?.ToString()));
-
-         Action<object?> nullCheckWrapper(Action<object> writeNonNull) =>
-            v => {
-               if (v is null) {
-                  writer.WriteNullValue();
-               } else {
-                  writeNonNull(v);
-               }
-            };
-      }
-   }
-}

src/DataStreamSuite/DataStreamCore/DataStreamCore.csproj

@@ -2,7 +2,7 @@
 
   <PropertyGroup>
     <AllowUnsafeBlocks>true</AllowUnsafeBlocks>
-    <TargetFramework>net8.0</TargetFramework>
+    <TargetFramework>net7.0</TargetFramework>
     <Nullable>disable</Nullable>
   </PropertyGroup>
 

src/DataStreamSuite/DataStreamExpressions/DataStreamExpressions.csproj

@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>net8.0</TargetFramework>
+    <TargetFramework>net7.0</TargetFramework>
     <ImplicitUsings>enable</ImplicitUsings>
     <Nullable>enable</Nullable>
   </PropertyGroup>

src/DataStreamSuite/DataStreamPublisher/Configurations/MarketDataPublisher.json

@@ -1,12 +0,0 @@
-{
-  "user": "bts",
-  "prepublish_tables": {
-    "bbo": "bbo()",
-    "instruments": "instruments()",
-    "timesales": "timesales(10000)",
-    "books": "books()",
-    "seconds_1_10": "second(1,10)",
-    "literal_420": "literal(\"x\", \"420.0\")",
-    "mongodb_testcollection": "mongodb(\"mongodb+srv://johnc-dev:DMhDhP!g-TKeK.5@atlas-online-archive-5e18ab3c77c74d1cffa64c03-m7jkr.a.query.mongodb.net/?ssl=true&authSource=admin\",\"admin\",\"test_collection\")"
-  }
-}

src/DataStreamSuite/DataStreamPublisher/Configurations/SimpleEchoClient.json

@@ -1,4 +0,0 @@
-{
-  "user": "bts",
-  "simple_echo_client": true
-}

src/DataStreamSuite/DataStreamPublisher/DataStreamPublisher.csproj

@@ -1,16 +1,5 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
-  <PropertyGroup>
-    <OutputType>Exe</OutputType>
-    <TargetFramework>net8.0</TargetFramework>
-    <Nullable>enable</Nullable>
-    <AllowUnsafeBlocks>true</AllowUnsafeBlocks>
-  </PropertyGroup>
-
-  <ItemGroup>
-    <PackageReference Include="CommandLineParser" Version="2.9.1" />
-  </ItemGroup>
-
   <ItemGroup>
     <ProjectReference Include="..\..\client\spark_api\spark_api.csproj" />
     <ProjectReference Include="..\..\client\spark_core\spark_core.csproj" />
@@ -20,4 +9,11 @@
     <ProjectReference Include="..\PubSub\PubSub.csproj" />
   </ItemGroup>
 
+  <PropertyGroup>
+    <OutputType>Exe</OutputType>
+    <TargetFramework>net7.0</TargetFramework>
+    <Nullable>enable</Nullable>
+    <AllowUnsafeBlocks>true</AllowUnsafeBlocks>
+  </PropertyGroup>
+
 </Project>

src/DataStreamSuite/DataStreamPublisher/DataStreamPublisherConfig.cs

@@ -1,76 +0,0 @@
-namespace Bts.DataStreamPublisher;
-
-using CommandLine;
-
-using System;
-using System.Collections.Generic;
-using System.IO;
-using System.Text.Json;
-using System.Text.Json.Serialization;
-
-public class DataStreamPublisherConfig {
-   /// <summary>
-   /// The login user for sparkd
-   /// </summary>
-   [JsonPropertyName("user")]
-   [Option("user", HelpText = "The sparkd login user")]
-   public string? User { get; set; }
-
-   /// <summary>
-   /// The login password for sparkd
-   /// </summary>
-   [JsonPropertyName("password")]
-   [Option("pass", HelpText = "The sparkd login password")]
-   public string? Password { get; set; }
-
-   /// <summary>
-   /// The config server url for sparkd
-   /// </summary>
-   [JsonPropertyName("sparkd")]
-   [Option("sparkd", HelpText = "The sparkd config server")]
-   public string? Sparkd { get; set; }
-
-   /// <summary>
-   /// The tables to publish on startup. Each key/value represents a table name/query to publish.
-   /// </summary>
-   [JsonPropertyName("prepublish_tables")]
-   public Dictionary<string, string>? PrepublishTables { get; set; }
-
-   [JsonPropertyName("simple_echo_client")]
-   [Option("simple-echo-client", HelpText = "Run a simple echo client (won't publish tables or connect to sparkd)")]
-   public bool? SimpleEchoClient { get; set; }
-
-   [Option(
-      "config",
-      MetaValue = "PATH",
-      HelpText = "Path to json file representing these options (DataStreamPublisherConfig)")]
-   [JsonIgnore]
-   public string? ConfigFile { get; set; }
-
-   public void MergeWith(DataStreamPublisherConfig other) {
-      User ??= other.User;
-      Password ??= other.Password;
-      Sparkd ??= other.Sparkd;
-      PrepublishTables ??= other.PrepublishTables;
-      SimpleEchoClient ??= other.SimpleEchoClient;
-      ConfigFile ??= other.ConfigFile;
-   }
-
-   /// <summary>
-   /// Merges options with those defined in `ConfigFile` (does not overwrite
-   /// non-null existing values).
-   /// </summary>
-   /// <exception cref="InvalidOperationException">
-   /// JsonSerializer.Deserialize returns null
-   /// </exception>
-   public void MergeWithConfigFile() {
-      if (ConfigFile is null) {
-         return;
-      }
-      var cfgString = File.ReadAllText(ConfigFile);
-      var parsedCfg = JsonSerializer.Deserialize<DataStreamPublisherConfig>(cfgString) ??
-         throw new InvalidOperationException($"Failed to parse json from {ConfigFile}");
-      MergeWith(parsedCfg);
-      ConfigFile = null;
-   }
-}

src/DataStreamSuite/DataStreamPublisher/Program.cs

@@ -1,129 +1,130 @@
-using BCG;
-using BCG.Utilities.General;
-
-using bts;
-using bts.api.core;
-using bts.utils;
-
-using Bts.DataStreamExpressions;
-using Bts.DataStreamPublisher;
-
-using CommandLine;
-
-using mbts.config;
-
-using System;
-using System.Collections.Generic;
-using System.IO;
-using System.Linq;
-using System.Threading.Tasks;
-
-await Parser.Default.ParseArguments<DataStreamPublisherConfig>(args)
-   .MapResult(RunAsync, errs => Task.FromResult(1));
-
-async Task<int> RunAsync(DataStreamPublisherConfig cfg) {
-   try {
-      cfg.MergeWithConfigFile();
-      Configuration.initialize(cfg.Sparkd);
-      Log.Gen.info("Starting DataStreamPublisher");
-      var service_ctx = ServiceContext.create(cfg.Sparkd);
-      await service_ctx.login(cfg.User ?? "bts", cfg.Password ?? string.Empty);
-      if (cfg.SimpleEchoClient ?? false) {
-         start_echo_client();
-      } else {
-         _publish_streams(cfg.PrepublishTables ?? []);
-      }
-   } catch (Exception ex) {
-      // Write the error to console first, in case the logging system is compromised.
-      var error_msg = $"DataStreamPublisher threw exception:\n{ex}";
-      Console.Error.WriteLine(error_msg);
-      Console.Error.Flush();
-      bts.Log.Gen.error(error_msg);
-      return 1;
-   }
-   return 0;
-}
-
-static ViewStream build_stream(string stream_expression) {
-   try {
-      bts.Log.Gen.info($"build_stream stream_expression: {stream_expression}");
-      var exp = DataStreamExpressionsInterpreter.Evaluate(stream_expression);
-      var rv = exp.getView(new Dictionary<string, StatementExpression>(0));
-      return rv;
-
-   } catch (Exception ex) {
-      bts.Log.assert(false, $"Could not build stream: {stream_expression} ex: {ex}");
-      return null;
-   }
-}
-
-static void start_echo_client() {
-   Console.WriteLine("Starting DSPublisher in TCP client echo mode, Hit key to continue");
-   Console.ReadLine();
-   SimpleTCPClient client = new SimpleTCPClient("127.0.0.1", 12345);
-   client.start();
-   while (true) {
-      System.Threading.Thread.Sleep(1000);
-   }
-   // await SimpleTCPClient.start("127.0.0.1", 12345);
-   // Task.Delay(1000000000).Wait();
-}
-
-void _publish_streams(IEnumerable<KeyValuePair<string, string>> prepublish_streams) {
-   PubTableBroker pb_broker = new PubTableBroker();
-   CloudStreamManager csm = new CloudStreamManager();
-   string csv_folder = @"C:\Temp\csvs_topublish";
-   CSVPublisher csv_publisher = new CSVPublisher(csv_folder, pb_broker);
-   foreach (var kv in prepublish_streams) {
-      var name = kv.Key;
-      var exp = kv.Value;
-      BCG.ViewStream vs = build_stream(exp);
-      ViewPublisher vpub = new ViewPublisher(name, pb_broker, vs);
-      vs.onChange += on_change;
-   }
-   while (true) {
-      System.Threading.Thread.Sleep(TimeSpan.FromSeconds(1));
-      ViewStreamDatabase.instance.doWork();
-      csm.doWork();
-      MasterWorker.getInstance(false).doWork();
-   }
-}
-
-
-
-void on_change(object obj) {
-   bts.Log.Gen.info($"DSPublisher on_change dp: {obj}");
-}
-
-public class CSVPublisher : IWorker {
-   private IDictionary<string, ViewPublisher> _pubs = new Dictionary<string, ViewPublisher>();
-   // read from config
-   private readonly string _csv_directory = @"C:\Temp\csvs_topublish\";
-
-   private PubTableBroker _pub_table_broker;
-   public CSVPublisher(string csv_directory, PubTableBroker pub_table_broker) {
-      _csv_directory = csv_directory;
-      _pub_table_broker = pub_table_broker;
-      MasterWorker.getInstance(false).addWorker(this, TimeSpan.FromSeconds(1));
-   }
-   public void doWork() {
-      var file_names = Directory.GetFiles(_csv_directory);
-      foreach (var fn in file_names) {
-         if (!_pubs.ContainsKey(fn)) {
-            _handle_new_file(fn);
-         }
-      }
-   }
-
-   private void _handle_new_file(string file_name) {
-      if (file_name.EndsWith(".csv")) {
-         ViewStream vs = new CSVReaderStream(file_name);
-         vs = new SchemaGuesserStream(vs);
-         var toks = file_name.Split('\\');
-         string table_name = toks.Last();
-         table_name = table_name.Remove(table_name.Length - ".csv".Length);
-         ViewPublisher vp = new ViewPublisher(table_name, _pub_table_broker, vs);
-         _pubs.Add(file_name, vp);
-      }
-   }
-}
+using System;
+using mbts.config;
+using bts.utils;
+using System.Threading.Tasks;
+using Bts.DataStreamExpressions;
+using System.Collections.Generic;
+
+using BCG;
+using System.IO;
+using BCG.Utilities.General;
+using bts;
+using System.Linq;
+
+
+bts.Log.Gen.info($"Starting DSPublisher");
+Console.WriteLine("Starting DSPublisher...");
+bool run_echo_tcp_client_only = false;
+static void init(string[] args) {
+   Func<string, string, Task> login = async (l, p) => {
+      var login = l;
+      var passwd = p;
+      var service_ctx = bts.api.core.ServiceContext.create();
+      await service_ctx.login(login, passwd);
+   };
+   BTSNativeMethods.provide_command_line(args, args.Length);
+   Configuration.initialize();
+   Task.Run(async () => await login("bts", String.Empty));
+}
+init(args);
+if (run_echo_tcp_client_only)
+   start_echo_client();
+else
+   _publish_streams();
+
+static ViewStream build_stream(string stream_expression) {
+   try {
+      bts.Log.Gen.info($"build_stream stream_expression: {stream_expression}");
+      var exp = DataStreamExpressionsInterpreter.Evaluate(stream_expression);
+      var rv = exp.getView(new Dictionary<string, StatementExpression>(0));
+      return rv;
+
+   } catch (Exception ex) {
+      bts.Log.assert(false, $"Could not build stream: {stream_expression} ex: {ex}");
+      return null;
+   }
+}
+
+static void start_echo_client() {
+   Console.WriteLine("Starting DSPublisher in TCP client echo mode, Hit key to continue");
+   Console.ReadLine();
+   SimpleTCPClient client = new SimpleTCPClient("127.0.0.1", 12345);
+   client.start();
+   while (true) {
+      System.Threading.Thread.Sleep(1000);
+   }
+   // await SimpleTCPClient.start("127.0.0.1", 12345);
+   // Task.Delay(1000000000).Wait();
+}
+
+void _publish_streams() {
+   PubTableBroker pb_broker = new PubTableBroker();
+   CloudStreamManager csm = new CloudStreamManager();
+   string csv_folder = @"C:\Temp\csvs_topublish";
+   CSVPublisher csv_publisher = new CSVPublisher(csv_folder, pb_broker);
+   // get it from config
+   Dictionary<string, string> streams_to_publish = new Dictionary<string, string>() {
+        //{"bbo","bbo()"},
+        //{"instruments","instruments()"},
+        //{"timesales","timesales(10000)"},
+        //{"books","books()"},
+       {"seconds_1_10","second(1,10)"},
+        {"literal_420","literal(\"x\", \"420.0\")"},
+        {"tradebar_30","tradebars(30)"},
+        {"mongodb_testcollection", "mongodb(\"mongodb://192.168.1.80:27017\",\"local\",\"test_collection\")"}
+        };
+   //  {"bbo_ts","timeSeries(bbo())"}
+
+   foreach (var kv in streams_to_publish) {
+      var name = kv.Key;
+      var exp = kv.Value;
+      BCG.ViewStream vs = build_stream(exp);
+      ViewPublisher vpub = new ViewPublisher(name, pb_broker, vs);
+      vs.onChange += on_change;
+   }
+   while (true) {
+      System.Threading.Thread.Sleep(TimeSpan.FromSeconds(1));
+      ViewStreamDatabase.instance.doWork();
+      csm.doWork();
+      MasterWorker.getInstance(false).doWork();
+   }
+}
+
+
+
+void on_change(object obj) {
+   bts.Log.Gen.info($"DSPublisher on_change dp: {obj}");
+}
+
+public class CSVPublisher : IWorker {
+   private IDictionary<string, ViewPublisher> _pubs = new Dictionary<string, ViewPublisher>();
+   // read from config
+   private readonly string _csv_directory = @"C:\Temp\csvs_topublish\";
+
+   private PubTableBroker _pub_table_broker;
+   public CSVPublisher(string csv_directory, PubTableBroker pub_table_broker) {
+      _csv_directory = csv_directory;
+      _pub_table_broker = pub_table_broker;
+      MasterWorker.getInstance(false).addWorker(this, TimeSpan.FromSeconds(1));
+   }
+   public void doWork() {
+      var file_names = Directory.GetFiles(_csv_directory);
+      foreach (var fn in file_names) {
+         if (!_pubs.ContainsKey(fn)) {
+            _handle_new_file(fn);
+         }
+      }
+   }
+
+   private void _handle_new_file(string file_name) {
+      if (file_name.EndsWith(".csv")) {
+         ViewStream vs = new CSVReaderStream(file_name);
+         vs = new SchemaGuesserStream(vs);
+         var toks = file_name.Split('\\');
+         string table_name = toks.Last();
+         table_name = table_name.Remove(table_name.Length - ".csv".Length);
+         ViewPublisher vp = new ViewPublisher(table_name, _pub_table_broker, vs);
+         _pubs.Add(file_name, vp);
+      }
+   }
+}

src/DataStreamSuite/DataStreamQueryAnalyzer/DataStreamQueryAnalyzer.csproj

@@ -2,7 +2,7 @@
 
   <PropertyGroup>
     <OutputType>Exe</OutputType>
-    <TargetFramework>net8.0-windows</TargetFramework>
+    <TargetFramework>net7.0-windows</TargetFramework>
     <Nullable>enable</Nullable>
     <UseWindowsForms>true</UseWindowsForms>
   </PropertyGroup>

src/DataStreamSuite/DataStreamSuite.sln

@@ -42,14 +42,6 @@ Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Bts.ColumnExpressions", "Bt
 EndProject
 Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Bts.ColumnSortExpressions", "Bts.ColumnSortExpressions\Bts.ColumnSortExpressions.csproj", "{B038CB72-4E81-4AF1-976F-ED8655C2C3D6}"
 EndProject
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Bts.DataStreamWebApp.Server", "Bts.DataStreamWebApp.Server\Bts.DataStreamWebApp.Server.csproj", "{6DE5E4CE-423E-4571-81F7-539D268D6059}"
-EndProject
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Bts.DataStream.Websocket", "Bts.DataStream.Websocket\Bts.DataStream.Websocket.csproj", "{088655DA-3126-4F8A-9AC7-9061FDA891FF}"
-EndProject
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Bts.DataStream.WebsocketServer", "Bts.DataStream.WebsocketServer\Bts.DataStream.WebsocketServer.csproj", "{35823BE0-C883-476A-8B30-D6097CBA1A8D}"
-EndProject
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "spark_websocket", "..\client\spark_websocket\spark_websocket.csproj", "{09B0FF33-D34F-4BB4-BE96-B7D35960BB3B}"
-EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
 		Debug|Any CPU = Debug|Any CPU
@@ -139,21 +131,5 @@ Global
 		{B038CB72-4E81-4AF1-976F-ED8655C2C3D6}.Debug|Any CPU.Build.0 = Debug|Any CPU
 		{B038CB72-4E81-4AF1-976F-ED8655C2C3D6}.Release|Any CPU.ActiveCfg = Release|Any CPU
 		{B038CB72-4E81-4AF1-976F-ED8655C2C3D6}.Release|Any CPU.Build.0 = Release|Any CPU
-		{6DE5E4CE-423E-4571-81F7-539D268D6059}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
-		{6DE5E4CE-423E-4571-81F7-539D268D6059}.Debug|Any CPU.Build.0 = Debug|Any CPU
-		{6DE5E4CE-423E-4571-81F7-539D268D6059}.Release|Any CPU.ActiveCfg = Release|Any CPU
-		{6DE5E4CE-423E-4571-81F7-539D268D6059}.Release|Any CPU.Build.0 = Release|Any CPU
-		{088655DA-3126-4F8A-9AC7-9061FDA891FF}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
-		{088655DA-3126-4F8A-9AC7-9061FDA891FF}.Debug|Any CPU.Build.0 = Debug|Any CPU
-		{088655DA-3126-4F8A-9AC7-9061FDA891FF}.Release|Any CPU.ActiveCfg = Release|Any CPU
-		{088655DA-3126-4F8A-9AC7-9061FDA891FF}.Release|Any CPU.Build.0 = Release|Any CPU
-		{35823BE0-C883-476A-8B30-D6097CBA1A8D}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
-		{35823BE0-C883-476A-8B30-D6097CBA1A8D}.Debug|Any CPU.Build.0 = Debug|Any CPU
-		{35823BE0-C883-476A-8B30-D6097CBA1A8D}.Release|Any CPU.ActiveCfg = Release|Any CPU
-		{35823BE0-C883-476A-8B30-D6097CBA1A8D}.Release|Any CPU.Build.0 = Release|Any CPU
-		{09B0FF33-D34F-4BB4-BE96-B7D35960BB3B}.Debug|Any CPU.ActiveCfg = Debug|x64
-		{09B0FF33-D34F-4BB4-BE96-B7D35960BB3B}.Debug|Any CPU.Build.0 = Debug|x64
-		{09B0FF33-D34F-4BB4-BE96-B7D35960BB3B}.Release|Any CPU.ActiveCfg = Release|x64
-		{09B0FF33-D34F-4BB4-BE96-B7D35960BB3B}.Release|Any CPU.Build.0 = Release|x64
 	EndGlobalSection
 EndGlobal

src/DataStreamSuite/DataStreamTests/DataStreamTests.csproj

@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>net8.0</TargetFramework>
+    <TargetFramework>net7.0</TargetFramework>
     <ImplicitUsings>enable</ImplicitUsings>
     <Nullable>enable</Nullable>
 

src/DataStreamSuite/ExpressionCore/ExpressionCore.csproj

@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>net8.0</TargetFramework>
+    <TargetFramework>net7.0</TargetFramework>
     <ImplicitUsings>enable</ImplicitUsings>
     <Nullable>enable</Nullable>
   </PropertyGroup>

src/DataStreamSuite/GuiUtilities/GuiUtilities.csproj

@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>net8.0-windows</TargetFramework>
+    <TargetFramework>net7.0-windows</TargetFramework>
     <ImplicitUsings>enable</ImplicitUsings>
     <Nullable>enable</Nullable>
     <UseWindowsForms>true</UseWindowsForms>

src/DataStreamSuite/PubSub/Client/PublishingUtilities/IPublisher.cs

@@ -6,18 +6,12 @@ namespace BCG
 	public interface IPublisher
 	{
       void publish( IPubItem pi );
-#pragma warning disable SYSLIB0011 // Type or member is obsolete
       void publish( IPubItem pi, IFormatter f );
-#pragma warning restore SYSLIB0011 // Type or member is obsolete
       void publish( IPubItem[] pi );
-#pragma warning disable SYSLIB0011 // Type or member is obsolete
       void publish( IPubItem[] pi, IFormatter f );
-#pragma warning restore SYSLIB0011 // Type or member is obsolete
    }
 
-#pragma warning disable SYSLIB0011 // Type or member is obsolete
    public interface IPublisher<T> where T : IFormatter
-#pragma warning restore SYSLIB0011 // Type or member is obsolete
    {
       void publish (IPubItem pi);
       void publish (IPubItem[] pi);

src/DataStreamSuite/PubSub/Client/PublishingUtilities/Publisher.cs

@@ -8,9 +8,7 @@ namespace BCG
 	public class Publisher : IPublisher
 	{
       private PublisherCore myPubCore = new PublisherCore ();
-#pragma warning disable SYSLIB0011 // Type or member is obsolete
       private BinaryFormatter myBinFormatter = new BinaryFormatter ();
-#pragma warning restore SYSLIB0011 // Type or member is obsolete
       private const string myTagType = "DefaultTag";
 
       public Publisher()   {}
@@ -23,9 +21,7 @@ namespace BCG
       public void publish (IPubItem[] pis)
       { publish( pis, myBinFormatter ); }
 
-#pragma warning disable SYSLIB0011 // Type or member is obsolete
       public void publish( IPubItem pi, IFormatter f )
-#pragma warning restore SYSLIB0011 // Type or member is obsolete
       {
          MemoryStream ms = new MemoryStream();
          #pragma warning disable 
@@ -35,9 +31,7 @@ namespace BCG
          myPubCore.publish( myTagType, pi.getTag(), ms );
       }
 
-#pragma warning disable SYSLIB0011 // Type or member is obsolete
       public void publish( IPubItem[] pis, IFormatter f )
-#pragma warning restore SYSLIB0011 // Type or member is obsolete
       {
          myPubCore.beginTransaction();
          foreach ( IPubItem pi in pis )
@@ -48,14 +42,10 @@ namespace BCG
       #endregion
    }
 
-#pragma warning disable SYSLIB0011 // Type or member is obsolete
    public class Publisher<T> : IPublisher<T> where T : IFormatter, new ()
-#pragma warning restore SYSLIB0012 // Type or member is obsolete
    {
       private PublisherCore myPubCore = new PublisherCore ();
-#pragma warning disable SYSLIB0011 // Type or member is obsolete
       private IFormatter myFormatter = new T ();
-#pragma warning restore SYSLIB0011 // Type or member is obsolete
       private const string myTagType = "DefaultTag";
 
       public Publisher () { }
@@ -65,9 +55,9 @@ namespace BCG
       public void publish (IPubItem pi)
       {
          MemoryStream ms = new MemoryStream ();
-#pragma warning disable 
+         #pragma warning disable 
          myFormatter.Serialize (ms, pi);
-#pragma warning restore SYSLIB0011
+         #pragma warning restore SYSLIB0011
          ms.Position = 0;
          myPubCore.publish (myTagType, pi.getTag (), ms);
       }

src/DataStreamSuite/PubSub/Misc/GenericFormatter.cs

@@ -5,21 +5,23 @@ using System.Runtime.Serialization.Formatters.Binary;
 
 namespace BCG
 {
-#pragma warning disable SYSLIB0011 // Type or member is obsolete
    public class GenericFormatter<F> : IGenericFormatter where F : IFormatter, new ()
    {
       IFormatter myFormatter = new F ();
 
       public T Deserialize<T> (Stream serializationStream)
       {
+         #pragma warning disable 
          return (T) myFormatter.Deserialize (serializationStream);
+         #pragma warning restore SYSLIB0011
       }
       public void Serialize<T> (Stream serializationStream, T graph)
       {
+         #pragma warning disable 
          myFormatter.Serialize (serializationStream, graph);
+         #pragma warning restore SYSLIB0011
       }
    }
 
    public class GenericBinaryFormatter : GenericFormatter<BinaryFormatter> { }
-#pragma warning restore SYSLIB0011 // Type or member is obsolete
 }

src/DataStreamSuite/PubSub/PubSub.csproj

@@ -6,7 +6,7 @@
 
   <PropertyGroup>
       <AllowUnsafeBlocks>true</AllowUnsafeBlocks>
-    <TargetFramework>net8.0</TargetFramework>
+    <TargetFramework>net7.0</TargetFramework>
     <Nullable>enable</Nullable>
   </PropertyGroup>