Implemented support for ZstdSharp.Port
diff --git a/src/DotPulsar/Internal/Compression/CompressionFactories.cs b/src/DotPulsar/Internal/Compression/CompressionFactories.cs
index b9eb1ef..566bc65 100644
--- a/src/DotPulsar/Internal/Compression/CompressionFactories.cs
+++ b/src/DotPulsar/Internal/Compression/CompressionFactories.cs
@@ -27,17 +27,35 @@
_compressorFactories = new List<ICompressorFactory>();
_decompressorFactories = new List<IDecompressorFactory>();
+ LoadSupportForLz4();
+ LoadSupportForSnappy();
+ LoadSupportForZlib();
+ LoadSupportForZstd();
+ }
+ private static void LoadSupportForLz4()
+ {
if (Lz4Compression.TryLoading(out ICompressorFactory? compressorFactory, out IDecompressorFactory? decompressorFactory))
Add(compressorFactory, decompressorFactory);
+ }
- if (SnappyCompression.TryLoading(out compressorFactory, out decompressorFactory))
+ private static void LoadSupportForSnappy()
+ {
+ if (SnappyCompression.TryLoading(out ICompressorFactory? compressorFactory, out IDecompressorFactory? decompressorFactory))
Add(compressorFactory, decompressorFactory);
+ }
- if (ZlibCompression.TryLoading(out compressorFactory, out decompressorFactory))
+ private static void LoadSupportForZlib()
+ {
+ if (ZlibCompression.TryLoading(out ICompressorFactory? compressorFactory, out IDecompressorFactory? decompressorFactory))
Add(compressorFactory, decompressorFactory);
+ }
- if (ZstdCompression.TryLoading(out compressorFactory, out decompressorFactory))
+ private static void LoadSupportForZstd()
+ {
+ if (ZstdSharpCompression.TryLoading(out ICompressorFactory? compressorFactory, out IDecompressorFactory? decompressorFactory))
+ Add(compressorFactory, decompressorFactory);
+ else if (ZstdCompression.TryLoading(out compressorFactory, out decompressorFactory))
Add(compressorFactory, decompressorFactory);
}
diff --git a/src/DotPulsar/Internal/Compression/ZstdSharpCompression.cs b/src/DotPulsar/Internal/Compression/ZstdSharpCompression.cs
new file mode 100644
index 0000000..9501f74
--- /dev/null
+++ b/src/DotPulsar/Internal/Compression/ZstdSharpCompression.cs
@@ -0,0 +1,180 @@
+/*
+ * 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.
+ */
+
+namespace DotPulsar.Internal.Compression;
+
+using DotPulsar.Exceptions;
+using DotPulsar.Internal.Abstractions;
+using System;
+using System.Buffers;
+using System.Collections.Generic;
+using System.Linq;
+using System.Reflection;
+
+public static class ZstdSharpCompression
+{
+ public delegate Span<byte> Wrap(ReadOnlySpan<byte> src);
+ public delegate int Unwrap(byte[] src, byte[] dst, int offset);
+
+ public static bool TryLoading(out ICompressorFactory? compressorFactory, out IDecompressorFactory? decompressorFactory)
+ {
+ try
+ {
+ var assembly = Assembly.Load("ZstdSharp");
+
+ var definedTypes = assembly.DefinedTypes.ToArray();
+
+ var decompressorType = FindDecompressor(definedTypes, "ZstdSharp.Decompressor");
+ var decompressorMethods = decompressorType.GetMethods(BindingFlags.Public | BindingFlags.Instance);
+ var unwrapMethod = FindUnwrap(decompressorMethods);
+
+ var compressorType = FindCompressor(definedTypes, "ZstdSharp.Compressor");
+ var compressorMethods = compressorType.GetMethods(BindingFlags.Public | BindingFlags.Instance);
+ var wrapMethod = FindWrap(compressorMethods);
+
+ compressorFactory = new CompressorFactory(PulsarApi.CompressionType.Zstd, () =>
+ {
+ var compressor = Activator.CreateInstance(compressorType, 0);
+ if (compressor is null)
+ throw new Exception($"Activator.CreateInstance returned null when trying to create a {compressorType.FullName}");
+
+ var wrap = (Wrap) wrapMethod.CreateDelegate(typeof(Wrap), compressor);
+ return new Compressor(CreateCompressor(wrap), (IDisposable) compressor);
+ });
+
+ decompressorFactory = new DecompressorFactory(PulsarApi.CompressionType.Zstd, () =>
+ {
+ var decompressor = Activator.CreateInstance(decompressorType);
+ if (decompressor is null)
+ throw new Exception($"Activator.CreateInstance returned null when trying to create a {decompressorType.FullName}");
+
+ var unwrap = (Unwrap) unwrapMethod.CreateDelegate(typeof(Unwrap), decompressor);
+ return new Decompressor(CreateDecompressor(unwrap), (IDisposable) decompressor);
+ });
+
+ return CompressionTester.TestCompression(compressorFactory, decompressorFactory);
+ }
+ catch
+ {
+ // Ignore
+ }
+
+ compressorFactory = null;
+ decompressorFactory = null;
+
+ return false;
+ }
+
+ private static TypeInfo FindDecompressor(IEnumerable<TypeInfo> types, string fullName)
+ {
+ foreach (var type in types)
+ {
+ if (type.FullName is null || !type.FullName.Equals(fullName))
+ continue;
+
+ if (type.IsPublic &&
+ type.IsClass &&
+ !type.IsAbstract &&
+ type.ImplementedInterfaces.Contains(typeof(IDisposable)) &&
+ type.GetConstructor(Type.EmptyTypes) is not null)
+ return type;
+
+ break;
+ }
+
+ throw new Exception($"{fullName} as a public class with an empty public constructor and implementing IDisposable was not found");
+ }
+
+ private static TypeInfo FindCompressor(IEnumerable<TypeInfo> types, string fullName)
+ {
+ foreach (var type in types)
+ {
+ if (type.FullName is null || !type.FullName.Equals(fullName))
+ continue;
+
+ if (type.IsPublic &&
+ type.IsClass &&
+ !type.IsAbstract &&
+ type.ImplementedInterfaces.Contains(typeof(IDisposable)) &&
+ type.GetConstructor(new[] { typeof(int) }) is not null)
+ return type;
+
+ break;
+ }
+
+ throw new Exception($"{fullName} as a public class with an public constructor taking an integer and implementing IDisposable was not found");
+ }
+
+ private static MethodInfo FindWrap(MethodInfo[] methods)
+ {
+ const string name = "Wrap";
+
+ foreach (var method in methods)
+ {
+ if (method.Name != name || method.ReturnType != typeof(Span<byte>))
+ continue;
+
+ var parameters = method.GetParameters();
+ if (parameters.Length != 1)
+ continue;
+
+ if (parameters[0].ParameterType != typeof(ReadOnlySpan<byte>))
+ continue;
+
+ return method;
+ }
+
+ throw new Exception($"A method with the name '{name}' matching the delegate was not found");
+ }
+
+ private static MethodInfo FindUnwrap(MethodInfo[] methods)
+ {
+ const string name = "Unwrap";
+
+ foreach (var method in methods)
+ {
+ if (method.Name != name || method.ReturnType != typeof(int))
+ continue;
+
+ var parameters = method.GetParameters();
+ if (parameters.Length != 3)
+ continue;
+
+ if (parameters[0].ParameterType != typeof(byte[]) ||
+ parameters[1].ParameterType != typeof(byte[]) ||
+ parameters[2].ParameterType != typeof(int))
+ continue;
+
+ return method;
+ }
+
+ throw new Exception($"A method with the name '{name}' matching the delegate was not found");
+ }
+
+ private static Func<ReadOnlySequence<byte>, int, ReadOnlySequence<byte>> CreateDecompressor(Unwrap decompress)
+ {
+ return (source, size) =>
+ {
+ var decompressed = new byte[size];
+ var bytesDecompressed = decompress(source.ToArray(), decompressed, 0);
+ if (size == bytesDecompressed)
+ return new ReadOnlySequence<byte>(decompressed);
+
+ throw new CompressionException($"ZstdSharp.Decompressor returned {bytesDecompressed} but expected {size}");
+ };
+ }
+
+ private static Func<ReadOnlySequence<byte>, ReadOnlySequence<byte>> CreateCompressor(Wrap compress)
+ => (source) => new ReadOnlySequence<byte>(compress(source.ToArray().AsSpan()).ToArray());
+}
diff --git a/tests/DotPulsar.Tests/DotPulsar.Tests.csproj b/tests/DotPulsar.Tests/DotPulsar.Tests.csproj
index f473d10..7ed0d84 100644
--- a/tests/DotPulsar.Tests/DotPulsar.Tests.csproj
+++ b/tests/DotPulsar.Tests/DotPulsar.Tests.csproj
@@ -23,6 +23,7 @@
<IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
</PackageReference>
<PackageReference Include="ZstdNet" Version="1.4.5" />
+ <PackageReference Include="ZstdSharp.Port" Version="0.6.1" />
</ItemGroup>
<ItemGroup>
diff --git a/tests/DotPulsar.Tests/Internal/Compression/ZstdCompressionTests.cs b/tests/DotPulsar.Tests/Internal/Compression/ZstdCompressionTests.cs
index 87460fa..586dfa9 100644
--- a/tests/DotPulsar.Tests/Internal/Compression/ZstdCompressionTests.cs
+++ b/tests/DotPulsar.Tests/Internal/Compression/ZstdCompressionTests.cs
@@ -17,6 +17,7 @@
using DotPulsar.Internal.Abstractions;
using DotPulsar.Internal.Compression;
using FluentAssertions;
+using System.Runtime.InteropServices;
using Xunit;
[Trait("Category", "Unit")]
@@ -27,7 +28,15 @@
{
// Arrange
var couldLoad = ZstdCompression.TryLoading(out ICompressorFactory? compressorFactory, out IDecompressorFactory? decompressorFactory);
- couldLoad.Should().BeTrue();
+
+ if (!RuntimeInformation.IsOSPlatform(OSPlatform.Windows))
+ {
+ couldLoad.Should().BeFalse();
+ return;
+ }
+ else
+ couldLoad.Should().BeTrue();
+
using var compressor = compressorFactory!.Create();
using var decompressor = decompressorFactory!.Create();
diff --git a/tests/DotPulsar.Tests/Internal/Compression/ZstdSharpCompressionTests.cs b/tests/DotPulsar.Tests/Internal/Compression/ZstdSharpCompressionTests.cs
new file mode 100644
index 0000000..ca34f83
--- /dev/null
+++ b/tests/DotPulsar.Tests/Internal/Compression/ZstdSharpCompressionTests.cs
@@ -0,0 +1,40 @@
+/*
+ * 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.
+ */
+
+namespace DotPulsar.Tests.Internal.Compression;
+
+using DotPulsar.Internal.Abstractions;
+using DotPulsar.Internal.Compression;
+using FluentAssertions;
+using Xunit;
+
+[Trait("Category", "Unit")]
+public class ZstdSharpCompressionTests
+{
+ [Fact]
+ public void Compression_GivenDataToCompressAndDecompress_ShouldReturnOriginalData()
+ {
+ // Arrange
+ var couldLoad = ZstdSharpCompression.TryLoading(out ICompressorFactory? compressorFactory, out IDecompressorFactory? decompressorFactory);
+ couldLoad.Should().BeTrue();
+ using var compressor = compressorFactory!.Create();
+ using var decompressor = decompressorFactory!.Create();
+
+ // Act
+ var compressionWorks = CompressionTester.TestCompression(compressorFactory, decompressorFactory);
+
+ // Assert
+ compressionWorks.Should().BeTrue();
+ }
+}
