io.netty.handler.codec.bytes

Class ByteArrayEncoder

java.lang.Object

io.netty.channel.ChannelHandlerAdapter

io.netty.channel.ChannelOperationHandlerAdapter

io.netty.channel.ChannelOutboundMessageHandlerAdapter<byte[]>

io.netty.handler.codec.bytes.ByteArrayEncoder

All Implemented Interfaces:

io.netty.channel.ChannelHandler, io.netty.channel.ChannelHandlerUtil.SingleOutboundMessageHandler<byte[]>, io.netty.channel.ChannelOperationHandler, io.netty.channel.ChannelOutboundMessageHandler<byte[]>

@ChannelHandler.Sharable
public class ByteArrayEncoder
extends io.netty.channel.ChannelOutboundMessageHandlerAdapter<byte[]>

Encodes the requested array of bytes into a ByteBuf. A typical setup for TCP/IP would be:

 ChannelPipeline pipeline = ...;

 // Decoders
 pipeline.addLast("frameDecoder",
                  new LengthFieldBasedFrameDecoder(1048576, 0, 4, 0, 4));
 pipeline.addLast("bytesDecoder",
                  new ByteArrayDecoder());

 // Encoder
 pipeline.addLast("frameEncoder", new LengthFieldPrepender(4));
 pipeline.addLast("bytesEncoder", new ByteArrayEncoder());
 

and then you can use an array of bytes instead of a ByteBuf as a message:

 void messageReceived(ChannelHandlerContext ctx, byte[] bytes) {
     ...
 }
 

Nested Class Summary

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

io.netty.channel.ChannelHandler.Sharable

Field Summary

Fields inherited from class io.netty.channel.ChannelOutboundMessageHandlerAdapter

ABORT

Constructor Summary

Constructors

Constructor and Description
ByteArrayEncoder()

Method Summary

Methods

Modifier and Type	Method and Description
void	flush(io.netty.channel.ChannelHandlerContext ctx, byte[] msg)

Methods inherited from class io.netty.channel.ChannelOutboundMessageHandlerAdapter

acceptOutboundMessage, beginFlush, endFlush, flush, isCloseOnFailedFlush, newOutboundBuffer, setCloseOnFailedFlush

Methods inherited from class io.netty.channel.ChannelOperationHandlerAdapter

bind, close, connect, deregister, disconnect, read, sendFile

Methods inherited from class io.netty.channel.ChannelHandlerAdapter

exceptionCaught, handlerAdded, handlerRemoved

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.ChannelOperationHandler

bind, close, connect, deregister, disconnect, read, sendFile

Methods inherited from interface io.netty.channel.ChannelHandler

exceptionCaught, handlerAdded, handlerRemoved

Constructor Detail

ByteArrayEncoder

public ByteArrayEncoder()

Method Detail

flush

public void flush(io.netty.channel.ChannelHandlerContext ctx,
         byte[] msg)
           throws Exception

Throws:

Exception