Package io.netty.handler.codec.bytes
Class ByteArrayDecoder
- java.lang.Object
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- io.netty.channel.ChannelHandlerAdapter
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- io.netty.channel.ChannelInboundHandlerAdapter
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- io.netty.handler.codec.MessageToMessageDecoder<ByteBuf>
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- io.netty.handler.codec.bytes.ByteArrayDecoder
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- All Implemented Interfaces:
ChannelHandler
,ChannelInboundHandler
public class ByteArrayDecoder extends MessageToMessageDecoder<ByteBuf>
Decodes a receivedByteBuf
into an array of bytes. A typical setup for TCP/IP would be:ChannelPipeline
pipeline = ...; // Decoders pipeline.addLast("frameDecoder", newLengthFieldBasedFrameDecoder
(1048576, 0, 4, 0, 4)); pipeline.addLast("bytesDecoder", newByteArrayDecoder
()); // Encoder pipeline.addLast("frameEncoder", newLengthFieldPrepender
(4)); pipeline.addLast("bytesEncoder", newByteArrayEncoder
());ByteBuf
as a message:void channelRead(
ChannelHandlerContext
ctx, byte[] bytes) { ... }
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Nested Class Summary
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Nested classes/interfaces inherited from interface io.netty.channel.ChannelHandler
ChannelHandler.Sharable
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Constructor Summary
Constructors Constructor Description ByteArrayDecoder()
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description protected void
decode(ChannelHandlerContext ctx, ByteBuf msg, java.util.List<java.lang.Object> out)
Decode from one message to an other.-
Methods inherited from class io.netty.handler.codec.MessageToMessageDecoder
acceptInboundMessage, channelRead, channelReadComplete
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Methods inherited from class io.netty.channel.ChannelInboundHandlerAdapter
channelActive, channelInactive, channelRegistered, channelUnregistered, channelWritabilityChanged, exceptionCaught, userEventTriggered
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Methods inherited from class io.netty.channel.ChannelHandlerAdapter
ensureNotSharable, handlerAdded, handlerRemoved, isSharable
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Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
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Methods inherited from interface io.netty.channel.ChannelHandler
handlerAdded, handlerRemoved
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Method Detail
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decode
protected void decode(ChannelHandlerContext ctx, ByteBuf msg, java.util.List<java.lang.Object> out) throws java.lang.Exception
Description copied from class:MessageToMessageDecoder
Decode from one message to an other. This method will be called for each written message that can be handled by this decoder.- Specified by:
decode
in classMessageToMessageDecoder<ByteBuf>
- Parameters:
ctx
- theChannelHandlerContext
which thisMessageToMessageDecoder
belongs tomsg
- the message to decode to an other oneout
- theList
to which decoded messages should be added- Throws:
java.lang.Exception
- is thrown if an error occurs
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