public FileCompression GetFileCompression(CompressorSettings settings)
{
var fileSystem = new FileSystem();
var streamCompressor = new StreamCompressor(new GzipBlockCompression(), settings, log);
var streamDecompressor = new StreamDecompressor(settings, log);
return(new FileCompression(fileSystem, streamCompressor, streamDecompressor));
}
public void CreateCompressor()
{
FileUtils.DeleteIfExists(TargetFile);
var settings = new CompressorSettingsBuilder()
.SetDefaultOffsetLabel()
.SetInputFileReadingBufferSize(InputFileBuffersSize)
.SetParallelismByThreadsPerCpu(ThreadsPerCpu, CompressQueueSize)
.GetSettings();
streamCompressor = new StreamCompressor(new GzipBlockCompression(), settings, new StubLog());
}
public Compress(ITestOutputHelper output)
{
this.output = output;
var gzipBlockCompression = new GzipBlockCompression();
var compressorSettings = new CompressorSettingsBuilder()
.SetDefaultOffsetLabel()
.SetInputFileReadingBufferSize(InputStreamReadSize)
.SetParallelismByThreadsPerCpu(4)
.GetSettings();
streamCompressor = new StreamCompressor(gzipBlockCompression, compressorSettings, new TestLog(output));
}
/// <summary>
///
/// </summary>
/// <param name="message"></param>
public override void ProcessMessageBeforeDeserialize(System.Web.Services.Protocols.SoapMessage message)
{
StreamCompressor compressor = StreamCompressor.Create(CompressorMode);
try
{
//对于处理BeforeDeserialize过程时，因为系统会按照优先级从高到低逐个调用SOAP扩展（跟上述过程刚好相反）
//的ProcessMessage方法，因此输入流必须是previousStream所指向的对象，该对象是优先级别更高的SOAP扩展的
//currentStream所指向的内存流对象，或者当前SOAP扩展自身是个最高优先级别的扩展时，其previousStream所
//指向的对象是个来自网络的输入流对象，而该函数所接受的输出流对象则应该是currentStream所指向的流对象。
compressor.ProcessStream(previousStream, currentStream, StreamProcessMode.Decompress);
}
catch (Exception e)
{
throw new SoapException(e.Message, SoapException.ServerFaultCode, e);
}
}
/// <summary>
///
/// </summary>
/// <param name="message"></param>
public override void ProcessMessageAfterSerialize(System.Web.Services.Protocols.SoapMessage message)
{
StreamCompressor compressor = StreamCompressor.Create(CompressorMode);
try
{
//对于处理AfterSerialize过程时，因为系统按优先级从低到高逐个调用SOAP扩展的ProcessMessage方法，
//因此输入流必须是currentStream指向的对象，该对象就是在ChainStream方法中定义的MemoryStream对象，
//而输出流是previousStream所指向的对象，该对象是更高优先级的SOAP扩展的输入流对象或者当前SOAP扩展
//自身是最高优先级别的扩展时，其previousStream所指向的对象是个SoapExternalStream对象，这个对象只
//是一个包装类对象而已，它底层包含了一个用于将构成Http/Soap协议所必要的信息发送到网络中输出流。
compressor.ProcessStream(currentStream, previousStream, StreamProcessMode.Compress);
}
catch (Exception e)
{
throw new SoapException(e.Message, SoapException.ServerFaultCode, e);
}
}
