private void ReadNextChunk()
{
ChannelBuffer readBuffer = ReadNext();
/* Header layout:
* [ , ][ , x] 0: last chunk in message, 1: there a more chunks after this one
* [ , ][ , x ] 0: success, 1: failure
* [ , ][xxxx,xx ] internal protocol version
* [xxxx,xxxx][ , ] application protocol version */
sbyte[] header = new sbyte[2];
readBuffer.readBytes(header);
_more = (header[0] & 0x1) != 0;
_failure = (header[0] & 0x2) != 0;
AssertSameProtocolVersion(header, _internalProtocolVersion, _applicationProtocolVersion);
if (!_more && _buffer == null)
{
// Optimization: this is the first chunk and it'll be the only chunk
// in this message.
_buffer = readBuffer;
}
else
{
_buffer = _buffer == null?ChannelBuffers.dynamicBuffer() : _buffer;
DiscardReadBytes();
_buffer.writeBytes(readBuffer);
}
if (_failure)
{
ReadAndThrowFailureResponse();
}
}
protected internal virtual ChannelBuffer MapSlave(Channel channel, RequestContext slave)
{
// Checking for machineId -1 excludes the "empty" slave contexts
// which some communication points pass in as context.
if (slave != null && slave.MachineId() != RequestContext.Empty.machineId())
{
_connectedSlaveChannels.add(channel, slave);
}
return(ChannelBuffers.dynamicBuffer());
}
//JAVA TO C# CONVERTER WARNING: 'final' parameters are ignored unless the option to convert to C# 7.2 'in' parameters is selected:
//ORIGINAL LINE: protected void handleRequest(org.jboss.netty.buffer.ChannelBuffer buffer, final org.jboss.netty.channel.Channel channel)
protected internal virtual void HandleRequest(ChannelBuffer buffer, Channel channel)
{
sbyte?continuation = ReadContinuationHeader(buffer, channel);
if (continuation == null)
{
return;
}
if (continuation.Value == ChunkingChannelBuffer.CONTINUATION_MORE)
{
PartialRequest partialRequest = _partialRequests[channel];
if (partialRequest == null)
{
// This is the first chunk in a multi-chunk request
RequestType type = GetRequestContext(buffer.readByte());
RequestContext context = ReadContext(buffer);
ChannelBuffer targetBuffer = MapSlave(channel, context);
partialRequest = new PartialRequest(this, type, context, targetBuffer);
_partialRequests[channel] = partialRequest;
}
partialRequest.Add(buffer);
}
else
{
PartialRequest partialRequest = _partialRequests.Remove(channel);
RequestType type;
RequestContext context;
ChannelBuffer targetBuffer;
ChannelBuffer bufferToReadFrom;
ChannelBuffer bufferToWriteTo;
if (partialRequest == null)
{
// This is the one and single chunk in the request
type = GetRequestContext(buffer.readByte());
context = ReadContext(buffer);
targetBuffer = MapSlave(channel, context);
bufferToReadFrom = buffer;
bufferToWriteTo = targetBuffer;
}
else
{
// This is the last chunk in a multi-chunk request
type = partialRequest.Type;
context = partialRequest.Context;
targetBuffer = partialRequest.Buffer;
partialRequest.Add(buffer);
bufferToReadFrom = targetBuffer;
bufferToWriteTo = ChannelBuffers.dynamicBuffer();
}
bufferToWriteTo.clear();
ChunkingChannelBuffer chunkingBuffer = NewChunkingBuffer(bufferToWriteTo, channel, _chunkSize, InternalProtocolVersion, _applicationProtocolVersion);
SubmitSilent(_targetCallExecutor, new TargetCaller(this, type, channel, context, chunkingBuffer, bufferToReadFrom));
}
}
protected internal override ChannelContext create()
{
_outerInstance.msgLog.info(threadInfo() + "Trying to open a new channel from " + _outerInstance.origin + " to " + _outerInstance.destination);
// We must specify the origin address in case the server has multiple IPs per interface
ChannelFuture channelFuture = _outerInstance.bootstrap.connect(_outerInstance.destination, _outerInstance.origin);
channelFuture.awaitUninterruptibly(5, TimeUnit.SECONDS);
if (channelFuture.Success)
{
_outerInstance.msgLog.info(threadInfo() + "Opened a new channel from " + channelFuture.Channel.LocalAddress + " to " + channelFuture.Channel.RemoteAddress);
return(new ChannelContext(channelFuture.Channel, ChannelBuffers.dynamicBuffer(), ByteBuffer.allocate(1024 * 1024)));
}
Exception cause = channelFuture.Cause;
string msg = _outerInstance.GetType().Name + " could not connect from " + _outerInstance.origin + " to " + _outerInstance.destination;
_outerInstance.msgLog.debug(msg);
throw outerInstance.traceComException(new ComException(msg, cause), "Client.start");
}
protected internal virtual ChannelBuffer NewChannelBuffer()
{
return(ChannelBuffers.dynamicBuffer(_capacity));
}
private ChunkingChannelBuffer NewChunkingBuffer(Channel channel)
{
return(NewChunkingBuffer(ChannelBuffers.dynamicBuffer(), channel, _chunkSize, InternalProtocolVersion, _applicationProtocolVersion));
}
