org.webbitserver.netty
Class FlashPolicyFileDecoder

java.lang.Object
  org.jboss.netty.channel.SimpleChannelUpstreamHandler
      org.jboss.netty.handler.codec.frame.FrameDecoder
          org.webbitserver.netty.FlashPolicyFileDecoder

All Implemented Interfaces:

org.jboss.netty.channel.ChannelHandler, org.jboss.netty.channel.ChannelUpstreamHandler, org.jboss.netty.channel.LifeCycleAwareChannelHandler

public class FlashPolicyFileDecoder
extends org.jboss.netty.handler.codec.frame.FrameDecoder

Checks the received ChannelBuffers for Flash policy file requests.

If this decoder detects a Flash policy file request it adds a FlashPolicyFileHandler to the ChannelPipeline and removes itself from the pipeline. If a Flash policy file request is not detected in the first 23 bytes of the buffer, the decoder removes itself from the pipeline.

This implementation is based on the "replacing a decoder with another decoder in a pipeline" section of the FrameDecoder documentation.

Nested Class Summary

Nested classes/interfaces inherited from interface org.jboss.netty.channel.ChannelHandler

org.jboss.netty.channel.ChannelHandler.Sharable

Field Summary

Fields inherited from class org.jboss.netty.handler.codec.frame.FrameDecoder

cumulation, DEFAULT_MAX_COMPOSITEBUFFER_COMPONENTS

Constructor Summary

FlashPolicyFileDecoder(Executor executor, Thread.UncaughtExceptionHandler exceptionHandler, Thread.UncaughtExceptionHandler ioExceptionHandler, int publicPort)

Method Summary

protected Object

decode(org.jboss.netty.channel.ChannelHandlerContext ctx, org.jboss.netty.channel.Channel channel, org.jboss.netty.buffer.ChannelBuffer buffer)

Methods inherited from class org.jboss.netty.handler.codec.frame.FrameDecoder

actualReadableBytes, afterAdd, afterRemove, appendToCumulation, beforeAdd, beforeRemove, channelClosed, channelDisconnected, cleanup, decodeLast, exceptionCaught, getMaxCumulationBufferCapacity, getMaxCumulationBufferComponents, internalBuffer, isUnfold, messageReceived, newCumulationBuffer, replace, setMaxCumulationBufferCapacity, setMaxCumulationBufferComponents, setUnfold, unfoldAndFireMessageReceived, updateCumulation

Methods inherited from class org.jboss.netty.channel.SimpleChannelUpstreamHandler

channelBound, channelConnected, channelInterestChanged, channelOpen, channelUnbound, childChannelClosed, childChannelOpen, handleUpstream, writeComplete

Methods inherited from class java.lang.Object

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

Constructor Detail

FlashPolicyFileDecoder

public FlashPolicyFileDecoder(Executor executor,
                              Thread.UncaughtExceptionHandler exceptionHandler,
                              Thread.UncaughtExceptionHandler ioExceptionHandler,
                              int publicPort)

Method Detail

decode

protected Object decode(org.jboss.netty.channel.ChannelHandlerContext ctx,
                        org.jboss.netty.channel.Channel channel,
                        org.jboss.netty.buffer.ChannelBuffer buffer)
                 throws Exception

Specified by:

decode in class org.jboss.netty.handler.codec.frame.FrameDecoder

Throws:

Exception