feat(csharp): Add csharp interop

.gitmodules

@@ -0,0 +1,4 @@
+[submodule "csharp/arrow-adbc"]
+	path = csharp/arrow-adbc
+	url = git@github.com:apache/arrow-adbc.git
+	branch = main

.rat-apache

@@ -12,6 +12,24 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
+csharp/src/Interop/Build-SnowflakeDriver.ps1
+csharp/src/Interop/copySnowflakeDriver.sh
+csharp/src/Interop/SnowflakeDriverLoader.cs
+csharp/src/Interop/readme.md
+csharp/test/Interop/CastTests.cs
+csharp/test/Interop/ClientTests.cs
+csharp/test/Interop/ConstraintTests.cs
+csharp/test/Interop/DriverTests.cs
+csharp/test/Interop/ErrorHandlingTests.cs
+csharp/test/Interop/NumericOperatorTests.cs
+csharp/test/Interop/readme.md
+csharp/test/Interop/Resources/SnowflakeConstraints.sql
+csharp/test/Interop/Resources/SnowflakeData.sql
+csharp/test/Interop/SnowflakeData.cs
+csharp/test/Interop/SnowflakeTestConfiguration.cs
+csharp/test/Interop/SnowflakeTestingUtils.cs
+csharp/test/Interop/ValueTests.cs
+
 go/binding.go
 go/bulk_ingestion.go
 go/bulk_ingestion_test.go

.rat-excludes

@@ -21,3 +21,4 @@
 go/license.tpl
 go/validation/queries/*/*.json
 go/validation/queries/*/*.sql
+csharp/test/Interop/Resources/snowflakeconfig.json

csharp/.gitignore

@@ -0,0 +1,29 @@
+# Copyright (c) 2025 ADBC Drivers Contributors
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#         http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+.vs
+.vscode
+bin
+obj
+x64
+*.dll
+*.lib
+*.obj
+*.exe
+*.csproj.user
+*.pass
+
+artifacts/
+TestResults/
+packages/

csharp/AdbcDrivers.Snowflake.sln

@@ -0,0 +1,62 @@
+Microsoft Visual Studio Solution File, Format Version 12.00
+# Visual Studio Version 17
+VisualStudioVersion = 17.4.33403.182
+MinimumVisualStudioVersion = 10.0.40219.1
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Apache.Arrow.Adbc", "arrow-adbc\csharp\src\Apache.Arrow.Adbc\Apache.Arrow.Adbc.csproj", "{8BFC2CBA-D9B9-C719-0617-59A21A7D7DF9}"
+EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Apache.Arrow.Adbc.Telemetry.Traces.Listeners", "arrow-adbc\csharp\src\Telemetry\Traces\Listeners\Apache.Arrow.Adbc.Telemetry.Traces.Listeners.csproj", "{CE59B9B8-E2D9-68B5-D25D-6CC418E5BE00}"
+EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Apache.Arrow.Adbc.Testing", "arrow-adbc\csharp\test\Apache.Arrow.Adbc.Tests\Apache.Arrow.Adbc.Testing.csproj", "{9C9EDBEB-BAE2-E3C2-BD74-7E34C6AFEE51}"
+EndProject
+Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "Dependencies", "Dependencies", "{02EA681E-C7D8-13C7-8484-4AC65E1B71E8}"
+EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Apache.Arrow.Adbc.Client", "arrow-adbc\csharp\src\Client\Apache.Arrow.Adbc.Client.csproj", "{80163E19-0794-37AE-1FA0-FFFA6A2DEC62}"
+EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "AdbcDrivers.Snowflake.Interop", "src\Interop\AdbcDrivers.Snowflake.Interop.csproj", "{3750A5D6-4C21-3854-8449-E81F94EA61DA}"
+EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "AdbcDrivers.Snowflake.Interop.Tests", "test\Interop\AdbcDrivers.Snowflake.Interop.Tests.csproj", "{7E63DF1C-ED91-B9F3-064F-D6779FE1AC4F}"
+EndProject
+Global
+	GlobalSection(SolutionConfigurationPlatforms) = preSolution
+		Debug|Any CPU = Debug|Any CPU
+		Release|Any CPU = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(ProjectConfigurationPlatforms) = postSolution
+		{8BFC2CBA-D9B9-C719-0617-59A21A7D7DF9}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{8BFC2CBA-D9B9-C719-0617-59A21A7D7DF9}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{8BFC2CBA-D9B9-C719-0617-59A21A7D7DF9}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{8BFC2CBA-D9B9-C719-0617-59A21A7D7DF9}.Release|Any CPU.Build.0 = Release|Any CPU
+		{CE59B9B8-E2D9-68B5-D25D-6CC418E5BE00}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{CE59B9B8-E2D9-68B5-D25D-6CC418E5BE00}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{CE59B9B8-E2D9-68B5-D25D-6CC418E5BE00}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{CE59B9B8-E2D9-68B5-D25D-6CC418E5BE00}.Release|Any CPU.Build.0 = Release|Any CPU
+		{9C9EDBEB-BAE2-E3C2-BD74-7E34C6AFEE51}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{9C9EDBEB-BAE2-E3C2-BD74-7E34C6AFEE51}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{9C9EDBEB-BAE2-E3C2-BD74-7E34C6AFEE51}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{9C9EDBEB-BAE2-E3C2-BD74-7E34C6AFEE51}.Release|Any CPU.Build.0 = Release|Any CPU
+		{80163E19-0794-37AE-1FA0-FFFA6A2DEC62}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{80163E19-0794-37AE-1FA0-FFFA6A2DEC62}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{80163E19-0794-37AE-1FA0-FFFA6A2DEC62}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{80163E19-0794-37AE-1FA0-FFFA6A2DEC62}.Release|Any CPU.Build.0 = Release|Any CPU
+		{3750A5D6-4C21-3854-8449-E81F94EA61DA}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{3750A5D6-4C21-3854-8449-E81F94EA61DA}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{3750A5D6-4C21-3854-8449-E81F94EA61DA}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{3750A5D6-4C21-3854-8449-E81F94EA61DA}.Release|Any CPU.Build.0 = Release|Any CPU
+		{7E63DF1C-ED91-B9F3-064F-D6779FE1AC4F}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{7E63DF1C-ED91-B9F3-064F-D6779FE1AC4F}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{7E63DF1C-ED91-B9F3-064F-D6779FE1AC4F}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{7E63DF1C-ED91-B9F3-064F-D6779FE1AC4F}.Release|Any CPU.Build.0 = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(SolutionProperties) = preSolution
+		HideSolutionNode = FALSE
+	EndGlobalSection
+	GlobalSection(NestedProjects) = preSolution
+		{8BFC2CBA-D9B9-C719-0617-59A21A7D7DF9} = {02EA681E-C7D8-13C7-8484-4AC65E1B71E8}
+		{CE59B9B8-E2D9-68B5-D25D-6CC418E5BE00} = {02EA681E-C7D8-13C7-8484-4AC65E1B71E8}
+		{9C9EDBEB-BAE2-E3C2-BD74-7E34C6AFEE51} = {02EA681E-C7D8-13C7-8484-4AC65E1B71E8}
+		{80163E19-0794-37AE-1FA0-FFFA6A2DEC62} = {02EA681E-C7D8-13C7-8484-4AC65E1B71E8}
+	EndGlobalSection
+	GlobalSection(ExtensibilityGlobals) = postSolution
+		SolutionGuid = {4795CF16-0FDB-4BE0-9768-5CF31564DC03}
+	EndGlobalSection
+EndGlobal

csharp/Directory.Build.props

@@ -0,0 +1,52 @@
+<!--
+  Copyright (c) 2025 ADBC Drivers Contributors
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+          http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+-->
+
+<Project>
+
+  <!-- Common repo directories -->
+  <PropertyGroup>
+    <RepoRoot>$(MSBuildThisFileDirectory)../</RepoRoot>
+    <CSharpDir>$(MSBuildThisFileDirectory)</CSharpDir>
+    <BaseOutputPath>$(CSharpDir)/artifacts/$(MSBuildProjectName)</BaseOutputPath>
+  </PropertyGroup>
+
+  <!-- AssemblyInfo properties -->
+  <PropertyGroup>
+    <Product>ADBC Driver for Snowflake</Product>
+    <Copyright>Copyright 2025 ADBC Drivers Contributors</Copyright>
+    <VersionPrefix>0.22.0</VersionPrefix>
+    <VersionSuffix>SNAPSHOT</VersionSuffix>
+  </PropertyGroup>
+
+  <PropertyGroup>
+    <EmbedUntrackedSources>true</EmbedUntrackedSources>
+    <LangVersion>latest</LangVersion>
+    <SignAssembly>true</SignAssembly>
+    <TreatWarningsAsErrors>true</TreatWarningsAsErrors>
+    <Nullable>enable</Nullable>
+    <ImplicitUsings>disable</ImplicitUsings>
+    <IsWindows Condition="'$([System.Runtime.InteropServices.RuntimeInformation]::IsOSPlatform($([System.Runtime.InteropServices.OSPlatform]::Windows)))' == 'true'">true</IsWindows>
+  </PropertyGroup>
+
+  <ItemGroup Condition="!$([MSBuild]::IsTargetFrameworkCompatible($(TargetFramework), 'net8.0'))">
+    <PackageReference Include="Microsoft.SourceLink.GitHub" Version="8.0.0" PrivateAssets="All"/>
+  </ItemGroup>
+
+</Project>

csharp/src/Interop/AdbcDrivers.Snowflake.Interop.csproj

@@ -0,0 +1,65 @@
+<Project Sdk="Microsoft.NET.Sdk">
+  <PropertyGroup>
+    <TargetFrameworks>netstandard2.0;net472;net8.0</TargetFrameworks>
+    <PackageReadmeFile>readme.md</PackageReadmeFile>
+    <IsPackagingPipeline Condition="'$(IsPackagingPipeline)' == ''">
+      false
+    </IsPackagingPipeline>
+  </PropertyGroup>
+
+  <!-- use Build-SnowflakeDriver.ps1 to build the dll -->
+  <Target Name="PreBuild_Win" BeforeTargets="DispatchToInnerBuilds" Condition="$([MSBuild]::IsOSPlatform('Windows'))">
+    <Exec Command="powershell -ExecutionPolicy Unrestricted -File $(ProjectDir)Build-SnowflakeDriver.ps1" />
+  </Target>
+
+  <!-- use copySnowflakeDriver.sh to move all the platform binaries when used in the pipeline -->
+  <Target Name="PreBuild_Linux" BeforeTargets="DispatchToInnerBuilds" Condition="$([MSBuild]::IsOSPlatform('Linux'))">
+    <Exec Command="bash $(ProjectDir)copySnowflakeDriver.sh" />
+  </Target>
+
+  <ItemGroup Condition="$([MSBuild]::IsOSPlatform('Windows'))">
+    <Content Include="readme.md">
+      <Pack>true</Pack>
+      <PackagePath>/</PackagePath>
+      <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
+    </Content>
+    <Content Include="libadbc_driver_snowflake.dll" Condition="'$(IsPackagingPipeline)' == 'true'">
+      <Pack>true</Pack>
+      <PackagePath>runtimes/win-x64/native</PackagePath>
+      <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
+    </Content>
+  </ItemGroup>
+
+  <!-- What runs in the pipeline. Assumes the Go builds have happened. -->
+  <ItemGroup Condition="$([MSBuild]::IsOSPlatform('Linux'))">
+    <Content Include="readme.md">
+      <Pack>true</Pack>
+      <PackagePath>/</PackagePath>
+      <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
+    </Content>
+
+    <!-- Windows/DLLs -->
+    <Content Include="libadbc_driver_snowflake.dll" Condition="'$(IsPackagingPipeline)' == 'true'">
+      <Pack>true</Pack>
+      <PackagePath>runtimes/win-x64/native</PackagePath>
+      <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
+    </Content>
+
+    <!-- Linux/so -->
+    <Content Include="libadbc_driver_snowflake.so" Condition="'$(IsPackagingPipeline)' == 'true'">
+      <Pack>true</Pack>
+      <PackagePath>runtimes/linux-x64/native</PackagePath>
+      <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
+    </Content>
+
+    <!-- Mac/dylib -->
+    <Content Include="libadbc_driver_snowflake.dylib" Condition="'$(IsPackagingPipeline)' == 'true'">
+      <Pack>true</Pack>
+      <PackagePath>runtimes/osx-x64/native</PackagePath>
+      <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
+    </Content>
+  </ItemGroup>
+  <ItemGroup>
+    <ProjectReference Include="..\..\arrow-adbc\csharp\src\Apache.Arrow.Adbc\Apache.Arrow.Adbc.csproj" />
+  </ItemGroup>
+</Project>

csharp/src/Interop/Build-SnowflakeDriver.ps1

@@ -0,0 +1,85 @@
+# Copyright (c) 2025 ADBC Drivers Contributors
+
+# This file has been modified from its original version, which is
+# under the Apache License:
+#
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+#
+#    http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+Write-Host "Building the Snowflake ADBC Go driver"
+Write-Host "IsPackagingPipeline=$Env:IsPackagingPipeline"
+Write-Host "IncludeGoSymbols=$Env:IncludeGoSymbols"
+
+if (-not (Test-Path env:IsPackagingPipeline)) {
+    Write-Host "IsPackagingPipeline environment variable does not exist."
+    exit
+}
+
+# Get the value of the IsPackagingPipeline environment variable
+$IsPackagingPipelineValue = $env:IsPackagingPipeline
+
+# Get the value of the IncludeGoSymbols environment variable, default to false if not set
+if (-not (Test-Path env:IncludeGoSymbols)) {
+    Write-Host "IncludeGoSymbols environment variable does not exist. Defaulting to 'false'."
+    $IncludeGoSymbolsValue = "false"
+} else {
+    $IncludeGoSymbolsValue = $env:IncludeGoSymbols
+}
+
+# Check if the value is "true"
+if ($IsPackagingPipelineValue -ne "true") {
+    Write-Host "IsPackagingPipeline is not set to 'true'. Exiting the script."
+    exit
+}
+
+$location = Get-Location
+
+$file = "libadbc_driver_snowflake.dll"
+
+if(Test-Path $file)
+{
+    exit
+}
+
+cd ..\..\..\go\
+
+if ($IncludeGoSymbolsValue -ne "true") {
+    Write-Host "Building without symbols"
+    pixi run make
+} else {
+    Write-Host "Building with symbols"
+    go build -buildmode=c-shared -tags=driverlib -o build\$file -ldflags "-s=0 -w=0 -X github.com/adbc-drivers/driverbase-go/driverbase.infoDriverVersion=unknown-dirty" -gcflags="all=-N -l" ./pkg
+}
+
+cd build
+
+if(Test-Path $file)
+{
+    try {
+        Write-Host "Copying file with robocopy (5 retries, 2 second wait)..."
+        robocopy . $location $file /R:5 /W:2 /NP
+
+        if ($LASTEXITCODE -le 7) {
+            Write-Host "File copied successfully. Exit code: $LASTEXITCODE"
+        } else {
+            Write-Host "Failed to copy file. Robocopy exit code: $LASTEXITCODE"
+            exit 1
+        }
+    }
+    catch {
+        Write-Host "Caught error: $_"
+    }
+ }

csharp/src/Interop/SnowflakeDriverLoader.cs

@@ -0,0 +1,49 @@
+/*
+* Copyright (c) 2025 ADBC Drivers Contributors
+*
+* This file has been modified from its original version, which is
+* under the Apache License:
+*
+* Licensed to the Apache Software Foundation (ASF) under one
+* or more contributor license agreements.  See the NOTICE file
+* distributed with this work for additional information
+* regarding copyright ownership.  The ASF licenses this file
+* to you under the Apache License, Version 2.0 (the
+* "License"); you may not use this file except in compliance
+* with the License.  You may obtain a copy of the License at
+*
+*    http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+using System.IO;
+using Apache.Arrow.Adbc;
+
+namespace AdbcDrivers.Snowflake.Interop
+{
+    /// <summary>
+    /// Lightweight class for loading the Snowflake Go driver to .NET.
+    /// </summary>
+    public class SnowflakeDriverLoader : AdbcDriverLoader
+    {
+        public SnowflakeDriverLoader() : base("libadbc_driver_snowflake", "AdbcDriverSnowflakeInit")
+        {
+
+        }
+
+        /// <summary>
+        /// Loads the Snowflake Go driver from the current directory using the default name and entry point.
+        /// </summary>
+        /// <returns>An <see cref="AdbcDriver"/> based on the Snowflake Go driver.</returns>
+        /// <exception cref="FileNotFoundException"></exception>
+        public static AdbcDriver LoadDriver()
+        {
+            return new SnowflakeDriverLoader().FindAndLoadDriver();
+        }
+    }
+}