Package io.netty.handler.codec.bytes
Class ByteArrayDecoder
java.lang.Object
io.netty.channel.ChannelHandlerAdapter
io.netty.channel.ChannelInboundHandlerAdapter
io.netty.handler.codec.MessageToMessageDecoder<ByteBuf>
io.netty.handler.codec.bytes.ByteArrayDecoder
- All Implemented Interfaces:
ChannelHandler
,ChannelInboundHandler
Decodes a received
ByteBuf
into an array of bytes.
A typical setup for TCP/IP would be:
and then you can use an array of bytes instead of aChannelPipeline
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
Nested classes/interfaces inherited from interface io.netty.channel.ChannelHandler
ChannelHandler.Sharable
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Constructor Summary
Constructors -
Method Summary
Modifier and TypeMethodDescriptionprotected void
decode
(ChannelHandlerContext ctx, ByteBuf msg, List<Object> out) Decode from one message to an other.Methods inherited from class io.netty.handler.codec.MessageToMessageDecoder
acceptInboundMessage, channelRead, channelReadComplete
Methods inherited from class io.netty.channel.ChannelInboundHandlerAdapter
channelActive, channelInactive, channelRegistered, channelUnregistered, channelWritabilityChanged, exceptionCaught, userEventTriggered
Methods inherited from class io.netty.channel.ChannelHandlerAdapter
ensureNotSharable, handlerAdded, handlerRemoved, isSharable
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.ChannelHandler
handlerAdded, handlerRemoved
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Constructor Details
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ByteArrayDecoder
public ByteArrayDecoder()
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Method Details
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decode
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:
Exception
- is thrown if an error occurs
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