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//------------------------------------------------------------
// Copyright (c) Microsoft Corporation. All rights reserved.
//------------------------------------------------------------
namespace System.ServiceModel.Channels
{
using System.Collections.Generic;
using System.IO;
using System.Runtime;
using System.Runtime.Diagnostics;
using System.ServiceModel;
using System.ServiceModel.Diagnostics;
using System.ServiceModel.Diagnostics.Application;
using System.Text;
using System.Xml;
class BinaryMessageEncoderFactory : MessageEncoderFactory
{
const int maxPooledXmlReaderPerMessage = 2;
BinaryMessageEncoder messageEncoder;
MessageVersion messageVersion;
int maxReadPoolSize;
int maxWritePoolSize;
CompressionFormat compressionFormat;
// Double-checked locking pattern requires volatile for read/write synchronization
volatile SynchronizedPool<XmlDictionaryWriter> streamedWriterPool;
volatile SynchronizedPool<XmlDictionaryReader> streamedReaderPool;
volatile SynchronizedPool<BinaryBufferedMessageData> bufferedDataPool;
volatile SynchronizedPool<BinaryBufferedMessageWriter> bufferedWriterPool;
volatile SynchronizedPool<RecycledMessageState> recycledStatePool;
object thisLock;
int maxSessionSize;
OnXmlDictionaryReaderClose onStreamedReaderClose;
XmlDictionaryReaderQuotas readerQuotas;
XmlDictionaryReaderQuotas bufferedReadReaderQuotas;
BinaryVersion binaryVersion;
public BinaryMessageEncoderFactory(MessageVersion messageVersion, int maxReadPoolSize, int maxWritePoolSize, int maxSessionSize,
XmlDictionaryReaderQuotas readerQuotas, long maxReceivedMessageSize, BinaryVersion version, CompressionFormat compressionFormat)
{
this.messageVersion = messageVersion;
this.maxReadPoolSize = maxReadPoolSize;
this.maxWritePoolSize = maxWritePoolSize;
this.maxSessionSize = maxSessionSize;
this.thisLock = new object();
this.onStreamedReaderClose = new OnXmlDictionaryReaderClose(ReturnStreamedReader);
this.readerQuotas = new XmlDictionaryReaderQuotas();
if (readerQuotas != null)
{
readerQuotas.CopyTo(this.readerQuotas);
}
this.bufferedReadReaderQuotas = EncoderHelpers.GetBufferedReadQuotas(this.readerQuotas);
this.MaxReceivedMessageSize = maxReceivedMessageSize;
this.binaryVersion = version;
this.compressionFormat = compressionFormat;
this.messageEncoder = new BinaryMessageEncoder(this, false, 0);
}
public static IXmlDictionary XmlDictionary
{
get { return XD.Dictionary; }
}
public override MessageEncoder Encoder
{
get
{
return messageEncoder;
}
}
public override MessageVersion MessageVersion
{
get { return messageVersion; }
}
public int MaxWritePoolSize
{
get { return maxWritePoolSize; }
}
public XmlDictionaryReaderQuotas ReaderQuotas
{
get
{
return readerQuotas;
}
}
public int MaxReadPoolSize
{
get { return maxReadPoolSize; }
}
public int MaxSessionSize
{
get { return maxSessionSize; }
}
public CompressionFormat CompressionFormat
{
get { return this.compressionFormat; }
}
long MaxReceivedMessageSize
{
get;
set;
}
object ThisLock
{
get { return thisLock; }
}
SynchronizedPool<RecycledMessageState> RecycledStatePool
{
get
{
if (recycledStatePool == null)
{
lock (ThisLock)
{
if (recycledStatePool == null)
{
//running = true;
recycledStatePool = new SynchronizedPool<RecycledMessageState>(maxReadPoolSize);
}
}
}
return recycledStatePool;
}
}
public override MessageEncoder CreateSessionEncoder()
{
return new BinaryMessageEncoder(this, true, maxSessionSize);
}
XmlDictionaryWriter TakeStreamedWriter(Stream stream)
{
if (streamedWriterPool == null)
{
lock (ThisLock)
{
if (streamedWriterPool == null)
{
//running = true;
streamedWriterPool = new SynchronizedPool<XmlDictionaryWriter>(maxWritePoolSize);
}
}
}
XmlDictionaryWriter xmlWriter = streamedWriterPool.Take();
if (xmlWriter == null)
{
xmlWriter = XmlDictionaryWriter.CreateBinaryWriter(stream, binaryVersion.Dictionary, null, false);
if (TD.WritePoolMissIsEnabled())
{
TD.WritePoolMiss(xmlWriter.GetType().Name);
}
}
else
{
((IXmlBinaryWriterInitializer)xmlWriter).SetOutput(stream, binaryVersion.Dictionary, null, false);
}
return xmlWriter;
}
void ReturnStreamedWriter(XmlDictionaryWriter xmlWriter)
{
xmlWriter.Close();
streamedWriterPool.Return(xmlWriter);
}
BinaryBufferedMessageWriter TakeBufferedWriter()
{
if (bufferedWriterPool == null)
{
lock (ThisLock)
{
if (bufferedWriterPool == null)
{
//running = true;
bufferedWriterPool = new SynchronizedPool<BinaryBufferedMessageWriter>(maxWritePoolSize);
}
}
}
BinaryBufferedMessageWriter messageWriter = bufferedWriterPool.Take();
if (messageWriter == null)
{
messageWriter = new BinaryBufferedMessageWriter(binaryVersion.Dictionary);
if (TD.WritePoolMissIsEnabled())
{
TD.WritePoolMiss(messageWriter.GetType().Name);
}
}
return messageWriter;
}
void ReturnMessageWriter(BinaryBufferedMessageWriter messageWriter)
{
bufferedWriterPool.Return(messageWriter);
}
XmlDictionaryReader TakeStreamedReader(Stream stream)
{
if (streamedReaderPool == null)
{
lock (ThisLock)
{
if (streamedReaderPool == null)
{
//running = true;
streamedReaderPool = new SynchronizedPool<XmlDictionaryReader>(maxReadPoolSize);
}
}
}
XmlDictionaryReader xmlReader = streamedReaderPool.Take();
if (xmlReader == null)
{
xmlReader = XmlDictionaryReader.CreateBinaryReader(stream,
binaryVersion.Dictionary,
readerQuotas,
null,
onStreamedReaderClose);
if (TD.ReadPoolMissIsEnabled())
{
TD.ReadPoolMiss(xmlReader.GetType().Name);
}
}
else
{
((IXmlBinaryReaderInitializer)xmlReader).SetInput(stream,
binaryVersion.Dictionary,
readerQuotas,
null,
onStreamedReaderClose);
}
return xmlReader;
}
void ReturnStreamedReader(XmlDictionaryReader xmlReader)
{
streamedReaderPool.Return(xmlReader);
}
BinaryBufferedMessageData TakeBufferedData(BinaryMessageEncoder messageEncoder)
{
if (bufferedDataPool == null)
{
lock (ThisLock)
{
if (bufferedDataPool == null)
{
//running = true;
bufferedDataPool = new SynchronizedPool<BinaryBufferedMessageData>(maxReadPoolSize);
}
}
}
BinaryBufferedMessageData messageData = bufferedDataPool.Take();
if (messageData == null)
{
messageData = new BinaryBufferedMessageData(this, maxPooledXmlReaderPerMessage);
if (TD.ReadPoolMissIsEnabled())
{
TD.ReadPoolMiss(messageData.GetType().Name);
}
}
messageData.SetMessageEncoder(messageEncoder);
return messageData;
}
void ReturnBufferedData(BinaryBufferedMessageData messageData)
{
messageData.SetMessageEncoder(null);
bufferedDataPool.Return(messageData);
}
class BinaryBufferedMessageData : BufferedMessageData
{
BinaryMessageEncoderFactory factory;
BinaryMessageEncoder messageEncoder;
Pool<XmlDictionaryReader> readerPool;
OnXmlDictionaryReaderClose onClose;
public BinaryBufferedMessageData(BinaryMessageEncoderFactory factory, int maxPoolSize)
: base(factory.RecycledStatePool)
{
this.factory = factory;
readerPool = new Pool<XmlDictionaryReader>(maxPoolSize);
onClose = new OnXmlDictionaryReaderClose(OnXmlReaderClosed);
}
public override MessageEncoder MessageEncoder
{
get { return messageEncoder; }
}
public override XmlDictionaryReaderQuotas Quotas
{
get { return factory.readerQuotas; }
}
public void SetMessageEncoder(BinaryMessageEncoder messageEncoder)
{
this.messageEncoder = messageEncoder;
}
protected override XmlDictionaryReader TakeXmlReader()
{
ArraySegment<byte> buffer = this.Buffer;
XmlDictionaryReader xmlReader = readerPool.Take();
if (xmlReader != null)
{
((IXmlBinaryReaderInitializer)xmlReader).SetInput(buffer.Array, buffer.Offset, buffer.Count,
factory.binaryVersion.Dictionary,
factory.bufferedReadReaderQuotas,
messageEncoder.ReaderSession,
onClose);
}
else
{
xmlReader = XmlDictionaryReader.CreateBinaryReader(buffer.Array, buffer.Offset, buffer.Count,
factory.binaryVersion.Dictionary,
factory.bufferedReadReaderQuotas,
messageEncoder.ReaderSession,
onClose);
if (TD.ReadPoolMissIsEnabled())
{
TD.ReadPoolMiss(xmlReader.GetType().Name);
}
}
return xmlReader;
}
protected override void ReturnXmlReader(XmlDictionaryReader reader)
{
readerPool.Return(reader);
}
protected override void OnClosed()
{
factory.ReturnBufferedData(this);
}
}
class BinaryBufferedMessageWriter : BufferedMessageWriter
{
XmlDictionaryWriter writer;
IXmlDictionary dictionary;
XmlBinaryWriterSession session;
public BinaryBufferedMessageWriter(IXmlDictionary dictionary)
{
this.dictionary = dictionary;
}
public BinaryBufferedMessageWriter(IXmlDictionary dictionary, XmlBinaryWriterSession session)
{
this.dictionary = dictionary;
this.session = session;
}
protected override XmlDictionaryWriter TakeXmlWriter(Stream stream)
{
XmlDictionaryWriter returnedWriter = writer;
if (returnedWriter == null)
{
returnedWriter = XmlDictionaryWriter.CreateBinaryWriter(stream, dictionary, session, false);
}
else
{
writer = null;
((IXmlBinaryWriterInitializer)returnedWriter).SetOutput(stream, dictionary, session, false);
}
return returnedWriter;
}
protected override void ReturnXmlWriter(XmlDictionaryWriter writer)
{
writer.Close();
if (this.writer == null)
{
this.writer = writer;
}
}
}
class BinaryMessageEncoder : MessageEncoder, ICompressedMessageEncoder, ITraceSourceStringProvider
{
const string SupportedCompressionTypesMessageProperty = "BinaryMessageEncoder.SupportedCompressionTypes";
BinaryMessageEncoderFactory factory;
bool isSession;
XmlBinaryWriterSessionWithQuota writerSession;
BinaryBufferedMessageWriter sessionMessageWriter;
XmlBinaryReaderSession readerSession;
XmlBinaryReaderSession readerSessionForLogging;
bool readerSessionForLoggingIsInvalid = false;
int writeIdCounter;
int idCounter;
int maxSessionSize;
int remainingReaderSessionSize;
bool isReaderSessionInvalid;
MessagePatterns messagePatterns;
string contentType;
string normalContentType;
string gzipCompressedContentType;
string deflateCompressedContentType;
CompressionFormat sessionCompressionFormat;
readonly long maxReceivedMessageSize;
public BinaryMessageEncoder(BinaryMessageEncoderFactory factory, bool isSession, int maxSessionSize)
{
this.factory = factory;
this.isSession = isSession;
this.maxSessionSize = maxSessionSize;
this.remainingReaderSessionSize = maxSessionSize;
this.normalContentType = isSession ? factory.binaryVersion.SessionContentType : factory.binaryVersion.ContentType;
this.gzipCompressedContentType = isSession ? BinaryVersion.GZipVersion1.SessionContentType : BinaryVersion.GZipVersion1.ContentType;
this.deflateCompressedContentType = isSession ? BinaryVersion.DeflateVersion1.SessionContentType : BinaryVersion.DeflateVersion1.ContentType;
this.sessionCompressionFormat = this.factory.CompressionFormat;
this.maxReceivedMessageSize = this.factory.MaxReceivedMessageSize;
switch (this.factory.CompressionFormat)
{
case CompressionFormat.Deflate:
this.contentType = this.deflateCompressedContentType;
break;
case CompressionFormat.GZip:
this.contentType = this.gzipCompressedContentType;
break;
default:
this.contentType = this.normalContentType;
break;
}
}
public override string ContentType
{
get
{
return this.contentType;
}
}
public override MessageVersion MessageVersion
{
get { return factory.messageVersion; }
}
public override string MediaType
{
get { return this.contentType; }
}
public XmlBinaryReaderSession ReaderSession
{
get { return readerSession; }
}
public bool CompressionEnabled
{
get { return this.factory.CompressionFormat != CompressionFormat.None; }
}
ArraySegment<byte> AddSessionInformationToMessage(ArraySegment<byte> messageData, BufferManager bufferManager, int maxMessageSize)
{
int dictionarySize = 0;
byte[] buffer = messageData.Array;
if (writerSession.HasNewStrings)
{
IList<XmlDictionaryString> newStrings = writerSession.GetNewStrings();
for (int i = 0; i < newStrings.Count; i++)
{
int utf8ValueSize = Encoding.UTF8.GetByteCount(newStrings[i].Value);
dictionarySize += IntEncoder.GetEncodedSize(utf8ValueSize) + utf8ValueSize;
}
int messageSize = messageData.Offset + messageData.Count;
int remainingMessageSize = maxMessageSize - messageSize;
if (remainingMessageSize - dictionarySize < 0)
{
string excMsg = SR.GetString(SR.MaxSentMessageSizeExceeded, maxMessageSize);
if (TD.MaxSentMessageSizeExceededIsEnabled())
{
TD.MaxSentMessageSizeExceeded(excMsg);
}
throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new QuotaExceededException(excMsg));
}
int requiredBufferSize = messageData.Offset + messageData.Count + dictionarySize;
if (buffer.Length < requiredBufferSize)
{
byte[] newBuffer = bufferManager.TakeBuffer(requiredBufferSize);
Buffer.BlockCopy(buffer, messageData.Offset, newBuffer, messageData.Offset, messageData.Count);
bufferManager.ReturnBuffer(buffer);
buffer = newBuffer;
}
Buffer.BlockCopy(buffer, messageData.Offset, buffer, messageData.Offset + dictionarySize, messageData.Count);
int offset = messageData.Offset;
for (int i = 0; i < newStrings.Count; i++)
{
string newString = newStrings[i].Value;
int utf8ValueSize = Encoding.UTF8.GetByteCount(newString);
offset += IntEncoder.Encode(utf8ValueSize, buffer, offset);
offset += Encoding.UTF8.GetBytes(newString, 0, newString.Length, buffer, offset);
}
writerSession.ClearNewStrings();
}
int headerSize = IntEncoder.GetEncodedSize(dictionarySize);
int newOffset = messageData.Offset - headerSize;
int newSize = headerSize + messageData.Count + dictionarySize;
IntEncoder.Encode(dictionarySize, buffer, newOffset);
return new ArraySegment<byte>(buffer, newOffset, newSize);
}
ArraySegment<byte> ExtractSessionInformationFromMessage(ArraySegment<byte> messageData)
{
if (isReaderSessionInvalid)
{
throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new InvalidDataException(SR.GetString(SR.BinaryEncoderSessionInvalid)));
}
byte[] buffer = messageData.Array;
int dictionarySize;
int headerSize;
int newOffset;
int newSize;
bool throwing = true;
try
{
IntDecoder decoder = new IntDecoder();
headerSize = decoder.Decode(buffer, messageData.Offset, messageData.Count);
dictionarySize = decoder.Value;
if (dictionarySize > messageData.Count)
{
throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new InvalidDataException(SR.GetString(SR.BinaryEncoderSessionMalformed)));
}
newOffset = messageData.Offset + headerSize + dictionarySize;
newSize = messageData.Count - headerSize - dictionarySize;
if (newSize < 0)
{
throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new InvalidDataException(SR.GetString(SR.BinaryEncoderSessionMalformed)));
}
if (dictionarySize > 0)
{
if (dictionarySize > remainingReaderSessionSize)
{
string message = SR.GetString(SR.BinaryEncoderSessionTooLarge, this.maxSessionSize);
if (TD.MaxSessionSizeReachedIsEnabled())
{
TD.MaxSessionSizeReached(message);
}
Exception inner = new QuotaExceededException(message);
throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new CommunicationException(message, inner));
}
else
{
remainingReaderSessionSize -= dictionarySize;
}
int size = dictionarySize;
int offset = messageData.Offset + headerSize;
while (size > 0)
{
decoder.Reset();
int bytesDecoded = decoder.Decode(buffer, offset, size);
int utf8ValueSize = decoder.Value;
offset += bytesDecoded;
size -= bytesDecoded;
if (utf8ValueSize > size)
{
throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new InvalidDataException(SR.GetString(SR.BinaryEncoderSessionMalformed)));
}
string value = Encoding.UTF8.GetString(buffer, offset, utf8ValueSize);
offset += utf8ValueSize;
size -= utf8ValueSize;
readerSession.Add(idCounter, value);
idCounter++;
}
}
throwing = false;
}
finally
{
if (throwing)
{
isReaderSessionInvalid = true;
}
}
return new ArraySegment<byte>(buffer, newOffset, newSize);
}
public override Message ReadMessage(ArraySegment<byte> buffer, BufferManager bufferManager, string contentType)
{
if (bufferManager == null)
{
throw DiagnosticUtility.ExceptionUtility.ThrowHelperArgumentNull("bufferManager");
}
CompressionFormat compressionFormat = this.CheckContentType(contentType);
if (TD.BinaryMessageDecodingStartIsEnabled())
{
TD.BinaryMessageDecodingStart();
}
if (compressionFormat != CompressionFormat.None)
{
MessageEncoderCompressionHandler.DecompressBuffer(ref buffer, bufferManager, compressionFormat, this.maxReceivedMessageSize);
}
if (isSession)
{
if (readerSession == null)
{
readerSession = new XmlBinaryReaderSession();
messagePatterns = new MessagePatterns(factory.binaryVersion.Dictionary, readerSession, this.MessageVersion);
}
try
{
buffer = ExtractSessionInformationFromMessage(buffer);
}
catch (InvalidDataException)
{
MessageLogger.LogMessage(buffer, MessageLoggingSource.Malformed);
throw;
}
}
BinaryBufferedMessageData messageData = factory.TakeBufferedData(this);
Message message;
if (messagePatterns != null)
{
message = messagePatterns.TryCreateMessage(buffer.Array, buffer.Offset, buffer.Count, bufferManager, messageData);
}
else
{
message = null;
}
if (message == null)
{
messageData.Open(buffer, bufferManager);
RecycledMessageState messageState = messageData.TakeMessageState();
if (messageState == null)
{
messageState = new RecycledMessageState();
}
message = new BufferedMessage(messageData, messageState);
}
message.Properties.Encoder = this;
if (TD.MessageReadByEncoderIsEnabled() && buffer != null)
{
TD.MessageReadByEncoder(
EventTraceActivityHelper.TryExtractActivity(message, true),
buffer.Count,
this);
}
if (MessageLogger.LogMessagesAtTransportLevel)
{
MessageLogger.LogMessage(ref message, MessageLoggingSource.TransportReceive);
}
return message;
}
public override Message ReadMessage(Stream stream, int maxSizeOfHeaders, string contentType)
{
if (stream == null)
{
throw DiagnosticUtility.ExceptionUtility.ThrowHelperArgumentNull("stream");
}
CompressionFormat compressionFormat = this.CheckContentType(contentType);
if (TD.BinaryMessageDecodingStartIsEnabled())
{
TD.BinaryMessageDecodingStart();
}
if (compressionFormat != CompressionFormat.None)
{
stream = new MaxMessageSizeStream(
MessageEncoderCompressionHandler.GetDecompressStream(stream, compressionFormat), this.maxReceivedMessageSize);
}
XmlDictionaryReader reader = factory.TakeStreamedReader(stream);
Message message = Message.CreateMessage(reader, maxSizeOfHeaders, factory.messageVersion);
message.Properties.Encoder = this;
if (TD.StreamedMessageReadByEncoderIsEnabled())
{
TD.StreamedMessageReadByEncoder(
EventTraceActivityHelper.TryExtractActivity(message, true));
}
if (MessageLogger.LogMessagesAtTransportLevel)
{
MessageLogger.LogMessage(ref message, MessageLoggingSource.TransportReceive);
}
return message;
}
public override ArraySegment<byte> WriteMessage(Message message, int maxMessageSize, BufferManager bufferManager, int messageOffset)
{
if (message == null)
{
throw DiagnosticUtility.ExceptionUtility.ThrowHelperArgumentNull("message");
}
if (bufferManager == null)
{
throw DiagnosticUtility.ExceptionUtility.ThrowHelperArgumentNull("bufferManager");
}
if (maxMessageSize < 0)
{
throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new ArgumentOutOfRangeException("maxMessageSize", maxMessageSize,
SR.GetString(SR.ValueMustBeNonNegative)));
}
EventTraceActivity eventTraceActivity = null;
if (TD.BinaryMessageEncodingStartIsEnabled())
{
eventTraceActivity = EventTraceActivityHelper.TryExtractActivity(message);
TD.BinaryMessageEncodingStart(eventTraceActivity);
}
message.Properties.Encoder = this;
if (isSession)
{
if (writerSession == null)
{
writerSession = new XmlBinaryWriterSessionWithQuota(maxSessionSize);
sessionMessageWriter = new BinaryBufferedMessageWriter(factory.binaryVersion.Dictionary, writerSession);
}
messageOffset += IntEncoder.MaxEncodedSize;
}
if (messageOffset < 0)
{
throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new ArgumentOutOfRangeException("messageOffset", messageOffset,
SR.GetString(SR.ValueMustBeNonNegative)));
}
if (messageOffset > maxMessageSize)
{
string excMsg = SR.GetString(SR.MaxSentMessageSizeExceeded, maxMessageSize);
if (TD.MaxSentMessageSizeExceededIsEnabled())
{
TD.MaxSentMessageSizeExceeded(excMsg);
}
throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new QuotaExceededException(excMsg));
}
ThrowIfMismatchedMessageVersion(message);
BinaryBufferedMessageWriter messageWriter;
if (isSession)
{
messageWriter = sessionMessageWriter;
}
else
{
messageWriter = factory.TakeBufferedWriter();
}
ArraySegment<byte> messageData = messageWriter.WriteMessage(message, bufferManager, messageOffset, maxMessageSize);
if (MessageLogger.LogMessagesAtTransportLevel && !this.readerSessionForLoggingIsInvalid)
{
if (isSession)
{
if (this.readerSessionForLogging == null)
{
this.readerSessionForLogging = new XmlBinaryReaderSession();
}
if (this.writerSession.HasNewStrings)
{
foreach (XmlDictionaryString xmlDictionaryString in this.writerSession.GetNewStrings())
{
this.readerSessionForLogging.Add(this.writeIdCounter++, xmlDictionaryString.Value);
}
}
}
XmlDictionaryReader xmlDictionaryReader = XmlDictionaryReader.CreateBinaryReader(messageData.Array, messageData.Offset, messageData.Count, XD.Dictionary, XmlDictionaryReaderQuotas.Max, this.readerSessionForLogging, null);
MessageLogger.LogMessage(ref message, xmlDictionaryReader, MessageLoggingSource.TransportSend);
}
else
{
this.readerSessionForLoggingIsInvalid = true;
}
if (isSession)
{
messageData = AddSessionInformationToMessage(messageData, bufferManager, maxMessageSize);
}
else
{
factory.ReturnMessageWriter(messageWriter);
}
if (TD.MessageWrittenByEncoderIsEnabled() && messageData != null)
{
TD.MessageWrittenByEncoder(
eventTraceActivity ?? EventTraceActivityHelper.TryExtractActivity(message),
messageData.Count,
this);
}
CompressionFormat compressionFormat = this.CheckCompressedWrite(message);
if (compressionFormat != CompressionFormat.None)
{
MessageEncoderCompressionHandler.CompressBuffer(ref messageData, bufferManager, compressionFormat);
}
return messageData;
}
public override void WriteMessage(Message message, Stream stream)
{
if (message == null)
{
throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new ArgumentNullException("message"));
}
if (stream == null)
{
throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new ArgumentNullException("stream"));
}
EventTraceActivity eventTraceActivity = null;
if (TD.BinaryMessageEncodingStartIsEnabled())
{
eventTraceActivity = EventTraceActivityHelper.TryExtractActivity(message);
TD.BinaryMessageEncodingStart(eventTraceActivity);
}
CompressionFormat compressionFormat = this.CheckCompressedWrite(message);
if (compressionFormat != CompressionFormat.None)
{
stream = MessageEncoderCompressionHandler.GetCompressStream(stream, compressionFormat);
}
ThrowIfMismatchedMessageVersion(message);
message.Properties.Encoder = this;
XmlDictionaryWriter xmlWriter = factory.TakeStreamedWriter(stream);
message.WriteMessage(xmlWriter);
xmlWriter.Flush();
if (TD.StreamedMessageWrittenByEncoderIsEnabled())
{
TD.StreamedMessageWrittenByEncoder(eventTraceActivity ?? EventTraceActivityHelper.TryExtractActivity(message));
}
factory.ReturnStreamedWriter(xmlWriter);
if (MessageLogger.LogMessagesAtTransportLevel)
{
MessageLogger.LogMessage(ref message, MessageLoggingSource.TransportSend);
}
if (compressionFormat != CompressionFormat.None)
{
stream.Close();
}
}
public override bool IsContentTypeSupported(string contentType)
{
bool supported = true;
if (!base.IsContentTypeSupported(contentType))
{
if (this.CompressionEnabled)
{
supported = (this.factory.CompressionFormat == CompressionFormat.GZip &&
base.IsContentTypeSupported(contentType, this.gzipCompressedContentType, this.gzipCompressedContentType)) ||
(this.factory.CompressionFormat == CompressionFormat.Deflate &&
base.IsContentTypeSupported(contentType, this.deflateCompressedContentType, this.deflateCompressedContentType)) ||
base.IsContentTypeSupported(contentType, this.normalContentType, this.normalContentType);
}
else
{
supported = false;
}
}
return supported;
}
public void SetSessionContentType(string contentType)
{
if (base.IsContentTypeSupported(contentType, this.gzipCompressedContentType, this.gzipCompressedContentType))
{
this.sessionCompressionFormat = CompressionFormat.GZip;
}
else if (base.IsContentTypeSupported(contentType, this.deflateCompressedContentType, this.deflateCompressedContentType))
{
this.sessionCompressionFormat = CompressionFormat.Deflate;
}
else
{
this.sessionCompressionFormat = CompressionFormat.None;
}
}
public void AddCompressedMessageProperties(Message message, string supportedCompressionTypes)
{
message.Properties.Add(SupportedCompressionTypesMessageProperty, supportedCompressionTypes);
}
static bool ContentTypeEqualsOrStartsWith(string contentType, string supportedContentType)
{
return contentType == supportedContentType || contentType.StartsWith(supportedContentType, StringComparison.OrdinalIgnoreCase);
}
CompressionFormat CheckContentType(string contentType)
{
CompressionFormat compressionFormat = CompressionFormat.None;
if (contentType == null)
{
compressionFormat = this.sessionCompressionFormat;
}
else
{
if (!this.CompressionEnabled)
{
if (!ContentTypeEqualsOrStartsWith(contentType, this.ContentType))
{
throw FxTrace.Exception.AsError(new ProtocolException(SR.GetString(SR.EncoderUnrecognizedContentType, contentType, this.ContentType)));
}
}
else
{
if (this.factory.CompressionFormat == CompressionFormat.GZip && ContentTypeEqualsOrStartsWith(contentType, this.gzipCompressedContentType))
{
compressionFormat = CompressionFormat.GZip;
}
else if (this.factory.CompressionFormat == CompressionFormat.Deflate && ContentTypeEqualsOrStartsWith(contentType, this.deflateCompressedContentType))
{
compressionFormat = CompressionFormat.Deflate;
}
else if (ContentTypeEqualsOrStartsWith(contentType, this.normalContentType))
{
compressionFormat = CompressionFormat.None;
}
else
{
throw FxTrace.Exception.AsError(new ProtocolException(SR.GetString(SR.EncoderUnrecognizedContentType, contentType, this.ContentType)));
}
}
}
return compressionFormat;
}
CompressionFormat CheckCompressedWrite(Message message)
{
CompressionFormat compressionFormat = this.sessionCompressionFormat;
if (compressionFormat != CompressionFormat.None && !this.isSession)
{
string acceptEncoding;
if (message.Properties.TryGetValue<string>(SupportedCompressionTypesMessageProperty, out acceptEncoding) &&
acceptEncoding != null)
{
acceptEncoding = acceptEncoding.ToLowerInvariant();
if ((compressionFormat == CompressionFormat.GZip &&
!acceptEncoding.Contains(MessageEncoderCompressionHandler.GZipContentEncoding)) ||
(compressionFormat == CompressionFormat.Deflate &&
!acceptEncoding.Contains(MessageEncoderCompressionHandler.DeflateContentEncoding)))
{
compressionFormat = CompressionFormat.None;
}
}
}
return compressionFormat;
}
string ITraceSourceStringProvider.GetSourceString()
{
return base.GetTraceSourceString();
}
}
class XmlBinaryWriterSessionWithQuota : XmlBinaryWriterSession
{
int bytesRemaining;
List<XmlDictionaryString> newStrings;
public XmlBinaryWriterSessionWithQuota(int maxSessionSize)
{
bytesRemaining = maxSessionSize;
}
public bool HasNewStrings
{
get { return newStrings != null; }
}
public override bool TryAdd(XmlDictionaryString s, out int key)
{
if (bytesRemaining == 0)
{
key = -1;
return false;
}
int bytesRequired = Encoding.UTF8.GetByteCount(s.Value);
bytesRequired += IntEncoder.GetEncodedSize(bytesRequired);
if (bytesRequired > bytesRemaining)
{
key = -1;
bytesRemaining = 0;
return false;
}
if (base.TryAdd(s, out key))
{
if (newStrings == null)
{
newStrings = new List<XmlDictionaryString>();
}
newStrings.Add(s);
bytesRemaining -= bytesRequired;
return true;
}
else
{
return false;
}
}
public IList<XmlDictionaryString> GetNewStrings()
{
return newStrings;
}
public void ClearNewStrings()
{
newStrings = null;
}
}
}
class BinaryFormatBuilder
{
List<byte> bytes;
public BinaryFormatBuilder()
{
this.bytes = new List<byte>();
}
public int Count
{
get { return bytes.Count; }
}
public void AppendPrefixDictionaryElement(char prefix, int key)
{
this.AppendNode(XmlBinaryNodeType.PrefixDictionaryElementA + GetPrefixOffset(prefix));
this.AppendKey(key);
}
public void AppendDictionaryXmlnsAttribute(char prefix, int key)
{
this.AppendNode(XmlBinaryNodeType.DictionaryXmlnsAttribute);
this.AppendUtf8(prefix);
this.AppendKey(key);
}
public void AppendPrefixDictionaryAttribute(char prefix, int key, char value)
{
this.AppendNode(XmlBinaryNodeType.PrefixDictionaryAttributeA + GetPrefixOffset(prefix));
this.AppendKey(key);
if (value == '1')
{
this.AppendNode(XmlBinaryNodeType.OneText);
}
else
{
this.AppendNode(XmlBinaryNodeType.Chars8Text);
this.AppendUtf8(value);
}
}
public void AppendDictionaryAttribute(char prefix, int key, char value)
{
this.AppendNode(XmlBinaryNodeType.DictionaryAttribute);
this.AppendUtf8(prefix);
this.AppendKey(key);
this.AppendNode(XmlBinaryNodeType.Chars8Text);
this.AppendUtf8(value);
}
public void AppendDictionaryTextWithEndElement(int key)
{
this.AppendNode(XmlBinaryNodeType.DictionaryTextWithEndElement);
this.AppendKey(key);
}
public void AppendDictionaryTextWithEndElement()
{
this.AppendNode(XmlBinaryNodeType.DictionaryTextWithEndElement);
}
public void AppendUniqueIDWithEndElement()
{
this.AppendNode(XmlBinaryNodeType.UniqueIdTextWithEndElement);
}
public void AppendEndElement()
{
this.AppendNode(XmlBinaryNodeType.EndElement);
}
void AppendKey(int key)
{
if (key < 0 || key >= 0x4000)
{
throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new ArgumentOutOfRangeException("key", key,
SR.GetString(SR.ValueMustBeInRange, 0, 0x4000)));
}
if (key >= 0x80)
{
this.AppendByte((key & 0x7f) | 0x80);
this.AppendByte(key >> 7);
}
else
{
this.AppendByte(key);
}
}
void AppendNode(XmlBinaryNodeType value)
{
this.AppendByte((int)value);
}
void AppendByte(int value)
{
if (value < 0 || value > 0xFF)
{
throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new ArgumentOutOfRangeException("value", value,
SR.GetString(SR.ValueMustBeInRange, 0, 0xFF)));
}
this.bytes.Add((byte)value);
}
void AppendUtf8(char value)
{
AppendByte(1);
AppendByte((int)value);
}
public int GetStaticKey(int value)
{
return value * 2;
}
public int GetSessionKey(int value)
{
return value * 2 + 1;
}
int GetPrefixOffset(char prefix)
{
if (prefix < 'a' && prefix > 'z')
{
throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new ArgumentOutOfRangeException("prefix", prefix,
SR.GetString(SR.ValueMustBeInRange, 'a', 'z')));
}
return prefix - 'a';
}
public byte[] ToByteArray()
{
byte[] array = this.bytes.ToArray();
this.bytes.Clear();
return array;
}
}
static class BinaryFormatParser
{
public static bool IsSessionKey(int value)
{
return (value & 1) != 0;
}
public static int GetSessionKey(int value)
{
return value / 2;
}
public static int GetStaticKey(int value)
{
return value / 2;
}
public static int ParseInt32(byte[] buffer, int offset, int size)
{
switch (size)
{
case 1:
return buffer[offset];
case 2:
return (buffer[offset] & 0x7f) + (buffer[offset + 1] << 7);
case 3:
return (buffer[offset] & 0x7f) + ((buffer[offset + 1] & 0x7f) << 7) + (buffer[offset + 2] << 14);
case 4:
return (buffer[offset] & 0x7f) + ((buffer[offset + 1] & 0x7f) << 7) + ((buffer[offset + 2] & 0x7f) << 14) + (buffer[offset + 3] << 21);
default:
throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new ArgumentOutOfRangeException("size", size,
SR.GetString(SR.ValueMustBeInRange, 1, 4)));
}
}
public static int ParseKey(byte[] buffer, int offset, int size)
{
return ParseInt32(buffer, offset, size);
}
public unsafe static UniqueId ParseUniqueID(byte[] buffer, int offset, int size)
{
return new UniqueId(buffer, offset);
}
public static int MatchBytes(byte[] buffer, int offset, int size, byte[] buffer2)
{
if (size < buffer2.Length)
{
return 0;
}
int j = offset;
for (int i = 0; i < buffer2.Length; i++, j++)
{
if (buffer2[i] != buffer[j])
{
return 0;
}
}
return buffer2.Length;
}
public static bool MatchAttributeNode(byte[] buffer, int offset, int size)
{
const XmlBinaryNodeType minAttribute = XmlBinaryNodeType.ShortAttribute;
const XmlBinaryNodeType maxAttribute = XmlBinaryNodeType.DictionaryAttribute;
if (size < 1)
{
return false;
}
XmlBinaryNodeType nodeType = (XmlBinaryNodeType)buffer[offset];
return nodeType >= minAttribute && nodeType <= maxAttribute;
}
public static int MatchKey(byte[] buffer, int offset, int size)
{
return MatchInt32(buffer, offset, size);
}
public static int MatchInt32(byte[] buffer, int offset, int size)
{
if (size > 0)
{
if ((buffer[offset] & 0x80) == 0)
{
return 1;
}
}
if (size > 1)
{
if ((buffer[offset + 1] & 0x80) == 0)
{
return 2;
}
}
if (size > 2)
{
if ((buffer[offset + 2] & 0x80) == 0)
{
return 3;
}
}
if (size > 3)
{
if ((buffer[offset + 3] & 0x80) == 0)
{
return 4;
}
}
return 0;
}
public static int MatchUniqueID(byte[] buffer, int offset, int size)
{
if (size < 16)
{
return 0;
}
return 16;
}
}
class MessagePatterns
{
static readonly byte[] commonFragment; // <Envelope><Headers><Action>
static readonly byte[] requestFragment1; // </Action><MessageID>
static readonly byte[] requestFragment2; // </MessageID><ReplyTo>...</ReplyTo><To>session-to-key</To></Headers><Body>
static readonly byte[] responseFragment1; // </Action><RelatesTo>
static readonly byte[] responseFragment2; // </RelatesTo><To>static-anonymous-key</To></Headers><Body>
static readonly byte[] bodyFragment; // <Envelope><Body>
const int ToValueSessionKey = 1;
IXmlDictionary dictionary;
XmlBinaryReaderSession readerSession;
ToHeader toHeader;
MessageVersion messageVersion;
static MessagePatterns()
{
BinaryFormatBuilder builder = new BinaryFormatBuilder();
MessageDictionary messageDictionary = XD.MessageDictionary;
Message12Dictionary message12Dictionary = XD.Message12Dictionary;
AddressingDictionary addressingDictionary = XD.AddressingDictionary;
Addressing10Dictionary addressing10Dictionary = XD.Addressing10Dictionary;
char messagePrefix = MessageStrings.Prefix[0];
char addressingPrefix = AddressingStrings.Prefix[0];
// <s:Envelope xmlns:s="soap-ns" xmlns="addressing-ns">
builder.AppendPrefixDictionaryElement(messagePrefix, builder.GetStaticKey(messageDictionary.Envelope.Key));
builder.AppendDictionaryXmlnsAttribute(messagePrefix, builder.GetStaticKey(message12Dictionary.Namespace.Key));
builder.AppendDictionaryXmlnsAttribute(addressingPrefix, builder.GetStaticKey(addressing10Dictionary.Namespace.Key));
// <s:Header>
builder.AppendPrefixDictionaryElement(messagePrefix, builder.GetStaticKey(messageDictionary.Header.Key));
// <a:Action>...
builder.AppendPrefixDictionaryElement(addressingPrefix, builder.GetStaticKey(addressingDictionary.Action.Key));
builder.AppendPrefixDictionaryAttribute(messagePrefix, builder.GetStaticKey(messageDictionary.MustUnderstand.Key), '1');
builder.AppendDictionaryTextWithEndElement();
commonFragment = builder.ToByteArray();
// <a:MessageID>...
builder.AppendPrefixDictionaryElement(addressingPrefix, builder.GetStaticKey(addressingDictionary.MessageId.Key));
builder.AppendUniqueIDWithEndElement();
requestFragment1 = builder.ToByteArray();
// <a:ReplyTo><a:Address>static-anonymous-key</a:Address></a:ReplyTo>
builder.AppendPrefixDictionaryElement(addressingPrefix, builder.GetStaticKey(addressingDictionary.ReplyTo.Key));
builder.AppendPrefixDictionaryElement(addressingPrefix, builder.GetStaticKey(addressingDictionary.Address.Key));
builder.AppendDictionaryTextWithEndElement(builder.GetStaticKey(addressing10Dictionary.Anonymous.Key));
builder.AppendEndElement();
// <a:To>session-to-key</a:To>
builder.AppendPrefixDictionaryElement(addressingPrefix, builder.GetStaticKey(addressingDictionary.To.Key));
builder.AppendPrefixDictionaryAttribute(messagePrefix, builder.GetStaticKey(messageDictionary.MustUnderstand.Key), '1');
builder.AppendDictionaryTextWithEndElement(builder.GetSessionKey(ToValueSessionKey));
// </s:Header>
builder.AppendEndElement();
// <s:Body>
builder.AppendPrefixDictionaryElement(messagePrefix, builder.GetStaticKey(messageDictionary.Body.Key));
requestFragment2 = builder.ToByteArray();
// <a:RelatesTo>...
builder.AppendPrefixDictionaryElement(addressingPrefix, builder.GetStaticKey(addressingDictionary.RelatesTo.Key));
builder.AppendUniqueIDWithEndElement();
responseFragment1 = builder.ToByteArray();
// <a:To>static-anonymous-key</a:To>
builder.AppendPrefixDictionaryElement(addressingPrefix, builder.GetStaticKey(addressingDictionary.To.Key));
builder.AppendPrefixDictionaryAttribute(messagePrefix, builder.GetStaticKey(messageDictionary.MustUnderstand.Key), '1');
builder.AppendDictionaryTextWithEndElement(builder.GetStaticKey(addressing10Dictionary.Anonymous.Key));
// </s:Header>
builder.AppendEndElement();
// <s:Body>
builder.AppendPrefixDictionaryElement(messagePrefix, builder.GetStaticKey(messageDictionary.Body.Key));
responseFragment2 = builder.ToByteArray();
// <s:Envelope xmlns:s="soap-ns" xmlns="addressing-ns">
builder.AppendPrefixDictionaryElement(messagePrefix, builder.GetStaticKey(messageDictionary.Envelope.Key));
builder.AppendDictionaryXmlnsAttribute(messagePrefix, builder.GetStaticKey(message12Dictionary.Namespace.Key));
builder.AppendDictionaryXmlnsAttribute(addressingPrefix, builder.GetStaticKey(addressing10Dictionary.Namespace.Key));
// <s:Body>
builder.AppendPrefixDictionaryElement(messagePrefix, builder.GetStaticKey(messageDictionary.Body.Key));
bodyFragment = builder.ToByteArray();
}
public MessagePatterns(IXmlDictionary dictionary, XmlBinaryReaderSession readerSession, MessageVersion messageVersion)
{
this.dictionary = dictionary;
this.readerSession = readerSession;
this.messageVersion = messageVersion;
}
public Message TryCreateMessage(byte[] buffer, int offset, int size, BufferManager bufferManager, BufferedMessageData messageData)
{
RelatesToHeader relatesToHeader;
MessageIDHeader messageIDHeader;
XmlDictionaryString toString;
int currentOffset = offset;
int remainingSize = size;
int bytesMatched = BinaryFormatParser.MatchBytes(buffer, currentOffset, remainingSize, commonFragment);
if (bytesMatched == 0)
{
return null;
}
currentOffset += bytesMatched;
remainingSize -= bytesMatched;
bytesMatched = BinaryFormatParser.MatchKey(buffer, currentOffset, remainingSize);
if (bytesMatched == 0)
{
return null;
}
int actionOffset = currentOffset;
int actionSize = bytesMatched;
currentOffset += bytesMatched;
remainingSize -= bytesMatched;
int totalBytesMatched;
bytesMatched = BinaryFormatParser.MatchBytes(buffer, currentOffset, remainingSize, requestFragment1);
if (bytesMatched != 0)
{
currentOffset += bytesMatched;
remainingSize -= bytesMatched;
bytesMatched = BinaryFormatParser.MatchUniqueID(buffer, currentOffset, remainingSize);
if (bytesMatched == 0)
{
return null;
}
int messageIDOffset = currentOffset;
int messageIDSize = bytesMatched;
currentOffset += bytesMatched;
remainingSize -= bytesMatched;
bytesMatched = BinaryFormatParser.MatchBytes(buffer, currentOffset, remainingSize, requestFragment2);
if (bytesMatched == 0)
{
return null;
}
currentOffset += bytesMatched;
remainingSize -= bytesMatched;
if (BinaryFormatParser.MatchAttributeNode(buffer, currentOffset, remainingSize))
{
return null;
}
UniqueId messageId = BinaryFormatParser.ParseUniqueID(buffer, messageIDOffset, messageIDSize);
messageIDHeader = MessageIDHeader.Create(messageId, messageVersion.Addressing);
relatesToHeader = null;
if (!readerSession.TryLookup(ToValueSessionKey, out toString))
{
return null;
}
totalBytesMatched = requestFragment1.Length + messageIDSize + requestFragment2.Length;
}
else
{
bytesMatched = BinaryFormatParser.MatchBytes(buffer, currentOffset, remainingSize, responseFragment1);
if (bytesMatched == 0)
{
return null;
}
currentOffset += bytesMatched;
remainingSize -= bytesMatched;
bytesMatched = BinaryFormatParser.MatchUniqueID(buffer, currentOffset, remainingSize);
if (bytesMatched == 0)
{
return null;
}
int messageIDOffset = currentOffset;
int messageIDSize = bytesMatched;
currentOffset += bytesMatched;
remainingSize -= bytesMatched;
bytesMatched = BinaryFormatParser.MatchBytes(buffer, currentOffset, remainingSize, responseFragment2);
if (bytesMatched == 0)
{
return null;
}
currentOffset += bytesMatched;
remainingSize -= bytesMatched;
if (BinaryFormatParser.MatchAttributeNode(buffer, currentOffset, remainingSize))
{
return null;
}
UniqueId messageId = BinaryFormatParser.ParseUniqueID(buffer, messageIDOffset, messageIDSize);
relatesToHeader = RelatesToHeader.Create(messageId, messageVersion.Addressing);
messageIDHeader = null;
toString = XD.Addressing10Dictionary.Anonymous;
totalBytesMatched = responseFragment1.Length + messageIDSize + responseFragment2.Length;
}
totalBytesMatched += commonFragment.Length + actionSize;
int actionKey = BinaryFormatParser.ParseKey(buffer, actionOffset, actionSize);
XmlDictionaryString actionString;
if (!TryLookupKey(actionKey, out actionString))
{
return null;
}
ActionHeader actionHeader = ActionHeader.Create(actionString, messageVersion.Addressing);
if (toHeader == null)
{
toHeader = ToHeader.Create(new Uri(toString.Value), messageVersion.Addressing);
}
int abandonedSize = totalBytesMatched - bodyFragment.Length;
offset += abandonedSize;
size -= abandonedSize;
Buffer.BlockCopy(bodyFragment, 0, buffer, offset, bodyFragment.Length);
messageData.Open(new ArraySegment<byte>(buffer, offset, size), bufferManager);
PatternMessage patternMessage = new PatternMessage(messageData, this.messageVersion);
MessageHeaders headers = patternMessage.Headers;
headers.AddActionHeader(actionHeader);
if (messageIDHeader != null)
{
headers.AddMessageIDHeader(messageIDHeader);
headers.AddReplyToHeader(ReplyToHeader.AnonymousReplyTo10);
}
else
{
headers.AddRelatesToHeader(relatesToHeader);
}
headers.AddToHeader(toHeader);
return patternMessage;
}
bool TryLookupKey(int key, out XmlDictionaryString result)
{
if (BinaryFormatParser.IsSessionKey(key))
{
return readerSession.TryLookup(BinaryFormatParser.GetSessionKey(key), out result);
}
else
{
return dictionary.TryLookup(BinaryFormatParser.GetStaticKey(key), out result);
}
}
sealed class PatternMessage : ReceivedMessage
{
IBufferedMessageData messageData;
MessageHeaders headers;
RecycledMessageState recycledMessageState;
MessageProperties properties;
XmlDictionaryReader reader;
public PatternMessage(IBufferedMessageData messageData, MessageVersion messageVersion)
{
this.messageData = messageData;
recycledMessageState = messageData.TakeMessageState();
if (recycledMessageState == null)
{
recycledMessageState = new RecycledMessageState();
}
properties = recycledMessageState.TakeProperties();
if (properties == null)
{
this.properties = new MessageProperties();
}
headers = recycledMessageState.TakeHeaders();
if (headers == null)
{
headers = new MessageHeaders(messageVersion);
}
else
{
headers.Init(messageVersion);
}
XmlDictionaryReader reader = messageData.GetMessageReader();
reader.ReadStartElement();
VerifyStartBody(reader, messageVersion.Envelope);
ReadStartBody(reader);
this.reader = reader;
}
public PatternMessage(IBufferedMessageData messageData, MessageVersion messageVersion,
KeyValuePair<string, object>[] properties, MessageHeaders headers)
{
this.messageData = messageData;
this.messageData.Open();
this.recycledMessageState = this.messageData.TakeMessageState();
if (this.recycledMessageState == null)
{
this.recycledMessageState = new RecycledMessageState();
}
this.properties = recycledMessageState.TakeProperties();
if (this.properties == null)
{
this.properties = new MessageProperties();
}
if (properties != null)
{
this.properties.CopyProperties(properties);
}
this.headers = recycledMessageState.TakeHeaders();
if (this.headers == null)
{
this.headers = new MessageHeaders(messageVersion);
}
if (headers != null)
{
this.headers.CopyHeadersFrom(headers);
}
XmlDictionaryReader reader = messageData.GetMessageReader();
reader.ReadStartElement();
VerifyStartBody(reader, messageVersion.Envelope);
ReadStartBody(reader);
this.reader = reader;
}
public override MessageHeaders Headers
{
get
{
if (IsDisposed)
#pragma warning suppress 56503 // Microsoft, Invalid State after dispose
{
throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(CreateMessageDisposedException());
}
return headers;
}
}
public override MessageProperties Properties
{
get
{
if (IsDisposed)
#pragma warning suppress 56503 // Microsoft, Invalid State after dispose
{
throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(CreateMessageDisposedException());
}
return properties;
}
}
internal override void SetProperty(string name, object value)
{
MessageProperties prop = this.properties;
if (prop != null)
{
prop[name] = value;
}
}
public override MessageVersion Version
{
get
{
if (IsDisposed)
{
#pragma warning suppress 56503 // Microsoft, Invalid State after dispose
throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(CreateMessageDisposedException());
}
return headers.MessageVersion;
}
}
internal override RecycledMessageState RecycledMessageState
{
get { return recycledMessageState; }
}
XmlDictionaryReader GetBufferedReaderAtBody()
{
XmlDictionaryReader reader = messageData.GetMessageReader();
reader.ReadStartElement();
reader.ReadStartElement();
return reader;
}
protected override void OnBodyToString(XmlDictionaryWriter writer)
{
using (XmlDictionaryReader reader = GetBufferedReaderAtBody())
{
while (reader.NodeType != XmlNodeType.EndElement)
{
writer.WriteNode(reader, false);
}
}
}
protected override void OnClose()
{
Exception ex = null;
try
{
base.OnClose();
}
catch (Exception e)
{
if (Fx.IsFatal(e))
{
throw;
}
ex = e;
}
try
{
properties.Dispose();
}
catch (Exception e)
{
if (Fx.IsFatal(e))
{
throw;
}
if (ex == null)
{
ex = e;
}
}
try
{
if (reader != null)
{
reader.Close();
}
}
catch (Exception e)
{
if (Fx.IsFatal(e))
{
throw;
}
if (ex == null)
{
ex = e;
}
}
try
{
recycledMessageState.ReturnHeaders(headers);
recycledMessageState.ReturnProperties(properties);
messageData.ReturnMessageState(recycledMessageState);
recycledMessageState = null;
messageData.Close();
messageData = null;
}
catch (Exception e)
{
if (Fx.IsFatal(e))
{
throw;
}
if (ex == null)
{
ex = e;
}
}
if (ex != null)
{
throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(ex);
}
}
protected override MessageBuffer OnCreateBufferedCopy(int maxBufferSize)
{
KeyValuePair<string, object>[] properties = new KeyValuePair<string, object>[Properties.Count];
((ICollection<KeyValuePair<string, object>>)Properties).CopyTo(properties, 0);
messageData.EnableMultipleUsers();
return new PatternMessageBuffer(this.messageData, this.Version, properties, this.headers);
}
protected override XmlDictionaryReader OnGetReaderAtBodyContents()
{
XmlDictionaryReader reader = this.reader;
this.reader = null;
return reader;
}
protected override string OnGetBodyAttribute(string localName, string ns)
{
return null;
}
}
class PatternMessageBuffer : MessageBuffer
{
bool closed;
MessageHeaders headers;
IBufferedMessageData messageDataAtBody;
MessageVersion messageVersion;
KeyValuePair<string, object>[] properties;
object thisLock = new object();
RecycledMessageState recycledMessageState;
public PatternMessageBuffer(IBufferedMessageData messageDataAtBody, MessageVersion messageVersion,
KeyValuePair<string, object>[] properties, MessageHeaders headers)
{
this.messageDataAtBody = messageDataAtBody;
this.messageDataAtBody.Open();
this.recycledMessageState = this.messageDataAtBody.TakeMessageState();
if (this.recycledMessageState == null)
{
this.recycledMessageState = new RecycledMessageState();
}
this.headers = this.recycledMessageState.TakeHeaders();
if (this.headers == null)
{
this.headers = new MessageHeaders(messageVersion);
}
this.headers.CopyHeadersFrom(headers);
this.properties = properties;
this.messageVersion = messageVersion;
}
public override int BufferSize
{
get
{
lock (this.ThisLock)
{
if (this.closed)
{
throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(CreateBufferDisposedException());
}
return messageDataAtBody.Buffer.Count;
}
}
}
object ThisLock
{
get
{
return this.thisLock;
}
}
public override void Close()
{
lock (this.thisLock)
{
if (!this.closed)
{
this.closed = true;
this.recycledMessageState.ReturnHeaders(this.headers);
this.messageDataAtBody.ReturnMessageState(this.recycledMessageState);
this.messageDataAtBody.Close();
this.recycledMessageState = null;
this.messageDataAtBody = null;
this.properties = null;
this.messageVersion = null;
this.headers = null;
}
}
}
public override Message CreateMessage()
{
lock (this.ThisLock)
{
if (this.closed)
{
throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(CreateBufferDisposedException());
}
return new PatternMessage(this.messageDataAtBody, this.messageVersion, this.properties,
this.headers);
}
}
}
}
}
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