diff options
Diffstat (limited to 'qpid/dotnet/Qpid.Client/Client/Transport/AmqpChannel.cs')
-rw-r--r-- | qpid/dotnet/Qpid.Client/Client/Transport/AmqpChannel.cs | 111 |
1 files changed, 111 insertions, 0 deletions
diff --git a/qpid/dotnet/Qpid.Client/Client/Transport/AmqpChannel.cs b/qpid/dotnet/Qpid.Client/Client/Transport/AmqpChannel.cs new file mode 100644 index 0000000000..1e217e755b --- /dev/null +++ b/qpid/dotnet/Qpid.Client/Client/Transport/AmqpChannel.cs @@ -0,0 +1,111 @@ +/* + * + * 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; +using System.Collections; +using log4net; +using Apache.Qpid.Buffer; +using Apache.Qpid.Codec; +using Apache.Qpid.Codec.Support; +using Apache.Qpid.Framing; + +namespace Apache.Qpid.Client.Transport +{ + public class AmqpChannel : IProtocolChannel + { + // Warning: don't use this log for regular logging. + static readonly ILog _protocolTraceLog = LogManager.GetLogger("TRACE.Qpid.Client.ProtocolChannel"); + + IByteChannel _byteChannel; + IProtocolEncoder _encoder; + IProtocolDecoder _decoder; + IProtocolDecoderOutput _decoderOutput; + private object _syncLock; + + public AmqpChannel(IByteChannel byteChannel, IProtocolDecoderOutput decoderOutput) + { + _byteChannel = byteChannel; + _decoderOutput = decoderOutput; + _syncLock = new object(); + + AMQProtocolProvider protocolProvider = new AMQProtocolProvider(); + IProtocolCodecFactory factory = protocolProvider.CodecFactory; + _encoder = factory.Encoder; + _decoder = factory.Decoder; + } + + public void Read() + { + ByteBuffer buffer = _byteChannel.Read(); + Decode(buffer); + } + + public IAsyncResult BeginRead(AsyncCallback callback, object state) + { + return _byteChannel.BeginRead(callback, state); + } + + public void EndRead(IAsyncResult result) + { + ByteBuffer buffer = _byteChannel.EndRead(result); + Decode(buffer); + } + + public void Write(IDataBlock o) + { + // TODO: Refactor to decorator. + if (_protocolTraceLog.IsDebugEnabled) + { + _protocolTraceLog.Debug(String.Format("WRITE {0}", o)); + } + // we should be doing an async write, but apparently + // the mentalis library doesn't queue async read/writes + // correctly and throws random IOException's. Stay sync for a while + //_byteChannel.BeginWrite(Encode(o), OnAsyncWriteDone, null); + _byteChannel.Write(Encode(o)); + } + + // not used for now + //private void OnAsyncWriteDone(IAsyncResult result) + //{ + // _byteChannel.EndWrite(result); + //} + + private void Decode(ByteBuffer buffer) + { + // make sure we don't try to decode more than + // one buffer at the same time + lock ( _syncLock ) + { + _decoder.Decode(buffer, _decoderOutput); + } + } + + private ByteBuffer Encode(object o) + { + SingleProtocolEncoderOutput output = new SingleProtocolEncoderOutput(); + _encoder.Encode(o, output); + return output.buffer; + } + + } +} + + |