io.netty.handler.codec

Class ByteToMessageDecoder<O>

java.lang.Object

io.netty.channel.ChannelStateHandlerAdapter

io.netty.channel.ChannelInboundHandlerAdapter

io.netty.handler.codec.ByteToMessageDecoder<O>

All Implemented Interfaces:

ChannelHandler, ChannelInboundByteHandler, ChannelInboundHandler, ChannelStateHandler

Direct Known Subclasses:

DelimiterBasedFrameDecoder, FixedLengthFrameDecoder, LengthFieldBasedFrameDecoder, ProtobufVarint32FrameDecoder, ReplayingDecoder

public abstract class ByteToMessageDecoder<O>
extends ChannelInboundHandlerAdapter
implements ChannelInboundByteHandler

Nested Class Summary

Nested classes/interfaces inherited from interface io.netty.channel.ChannelHandler

ChannelHandler.Sharable

Constructor Summary

Constructors

Constructor and Description
ByteToMessageDecoder()

Method Summary

Methods

Modifier and Type	Method and Description
void	beforeAdd(ChannelHandlerContext ctx)
protected void	callDecode(ChannelHandlerContext ctx)
void	channelInactive(ChannelHandlerContext ctx)
abstract O	decode(ChannelHandlerContext ctx, ByteBuf in)
O	decodeLast(ChannelHandlerContext ctx, ByteBuf in)
void	inboundBufferUpdated(ChannelHandlerContext ctx)
ByteBuf	newInboundBuffer(ChannelHandlerContext ctx)
void	replace(String newHandlerName, ChannelInboundByteHandler newHandler) Replace this decoder in the ChannelPipeline with the given handler.

Methods inherited from class io.netty.channel.ChannelStateHandlerAdapter

afterAdd, afterRemove, beforeRemove, channelActive, channelRegistered, channelUnregistered, exceptionCaught, userEventTriggered

Methods inherited from class java.lang.Object

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

Methods inherited from interface io.netty.channel.ChannelStateHandler

channelActive, channelRegistered, channelUnregistered

Methods inherited from interface io.netty.channel.ChannelHandler

afterAdd, afterRemove, beforeRemove, exceptionCaught, userEventTriggered

Constructor Detail

ByteToMessageDecoder

public ByteToMessageDecoder()

Method Detail

beforeAdd

public void beforeAdd(ChannelHandlerContext ctx)
               throws Exception

Specified by:

beforeAdd in interface ChannelHandler

Overrides:

beforeAdd in class ChannelStateHandlerAdapter

Throws:

Exception

newInboundBuffer

public ByteBuf newInboundBuffer(ChannelHandlerContext ctx)
                         throws Exception

Specified by:

newInboundBuffer in interface ChannelInboundByteHandler

Specified by:

newInboundBuffer in interface ChannelInboundHandler

Throws:

Exception

inboundBufferUpdated

public void inboundBufferUpdated(ChannelHandlerContext ctx)
                          throws Exception

Specified by:

inboundBufferUpdated in interface ChannelStateHandler

Specified by:

inboundBufferUpdated in class ChannelInboundHandlerAdapter

Throws:

Exception

channelInactive

public void channelInactive(ChannelHandlerContext ctx)
                     throws Exception

Specified by:

channelInactive in interface ChannelStateHandler

Overrides:

channelInactive in class ChannelStateHandlerAdapter

Throws:

Exception

callDecode

protected void callDecode(ChannelHandlerContext ctx)

replace

public void replace(String newHandlerName,
           ChannelInboundByteHandler newHandler)

Replace this decoder in the ChannelPipeline with the given handler. All remaining bytes in the inbound buffer will be forwarded to the new handler's inbound buffer.

decode

public abstract O decode(ChannelHandlerContext ctx,
       ByteBuf in)
                  throws Exception

Throws:

Exception

decodeLast

public O decodeLast(ChannelHandlerContext ctx,
           ByteBuf in)
             throws Exception

Throws:

Exception