com.sun.grizzly.async
Class TCPAsyncQueueWriter

java.lang.Object
  com.sun.grizzly.async.AbstractAsyncQueueWriter
      com.sun.grizzly.async.TCPAsyncQueueWriter

All Implemented Interfaces:

AsyncQueueWriter

public class TCPAsyncQueueWriter
extends AbstractAsyncQueueWriter

TCP implementation of AsyncQueueWriter

Author:

Alexey Stashok

Field Summary

Fields inherited from class com.sun.grizzly.async.AbstractAsyncQueueWriter

selectorHandler

Constructor Summary

TCPAsyncQueueWriter(SelectorHandler selectorHandler)

Method Summary

protected OperationResult	doWrite(WritableByteChannel channel, SocketAddress dstAddress, ByteBuffer byteBuffer, OperationResult dstResult)
Future<AsyncQueueWriteUnit>	write(SelectionKey key, SocketAddress dstAddress, ByteBuffer buffer, AsyncWriteCallbackHandler callbackHandler, AsyncQueueDataProcessor writePreProcessor, ByteBufferCloner cloner) Method sends ByteBuffer to the SocketAddress First, if SelectableChannel associated write queue is empty - it tries to write ByteBuffer to the given SocketAddress directly (without putting to the queue).

Methods inherited from class com.sun.grizzly.async.AbstractAsyncQueueWriter

close, doWrite, getAsyncQueue, isReady, onClose, onWrite, registerForWriting, write, write, write, write, write, write, write

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

TCPAsyncQueueWriter

public TCPAsyncQueueWriter(SelectorHandler selectorHandler)

Method Detail

write

public Future<AsyncQueueWriteUnit> write(SelectionKey key,
                                         SocketAddress dstAddress,
                                         ByteBuffer buffer,
                                         AsyncWriteCallbackHandler callbackHandler,
                                         AsyncQueueDataProcessor writePreProcessor,
                                         ByteBufferCloner cloner)
                                  throws IOException

Method sends ByteBuffer to the SocketAddress First, if SelectableChannel associated write queue is empty - it tries to write ByteBuffer to the given SocketAddress directly (without putting to the queue). If associated write queue is not empty or after direct writing ByteBuffer still has ready data to be written - ByteBuffer will be added to AsyncQueue and SelectableChannel will be registered on SelectorHandler, waiting for OP_WRITE event. If an exception occurs, during direct writing - it will be propagated to the caller directly and come via AsyncWriteCallbackHandler.onIOException() Before data will be written on SelectableChannel, first it will be passed for preprocessing to AsyncQueueDataProcessor, and then preprocessor result data (AsyncQueueDataProcessor.getResultByteBuffer()) will be written on the SelectableChannel.

Specified by:

write in interface AsyncQueueWriter

Overrides:

write in class AbstractAsyncQueueWriter

Parameters:

key - SelectionKey associated with SelectableChannel ByteBuffer should be written to

dstAddress - destination address ByteBuffer will be sent to

buffer - ByteBuffer

callbackHandler - AsyncWriteCallbackHandler, which will get notified, when ByteBuffer will be completely written

writePreProcessor - AsyncQueueDataProcessor, which will perform data processing, before it will be written on SelectableChannel

Throws:

IOException

doWrite

protected OperationResult doWrite(WritableByteChannel channel,
                                  SocketAddress dstAddress,
                                  ByteBuffer byteBuffer,
                                  OperationResult dstResult)
                           throws IOException

Specified by:

doWrite in class AbstractAsyncQueueWriter

Throws:

IOException