ml.shifu.guagua.io

Class NettyBytableEncoder

java.lang.Object

org.jboss.netty.handler.codec.oneone.OneToOneEncoder

org.jboss.netty.handler.codec.serialization.ObjectEncoder

ml.shifu.guagua.io.NettyBytableEncoder

All Implemented Interfaces:

org.jboss.netty.channel.ChannelDownstreamHandler, org.jboss.netty.channel.ChannelHandler

public class NettyBytableEncoder
extends org.jboss.netty.handler.codec.serialization.ObjectEncoder

A encoder to encode Bytable instance to coded bytes array for netty pipeline.

Nested Class Summary

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

org.jboss.netty.channel.ChannelHandler.Sharable

Constructor Summary

Constructors

Constructor and Description
NettyBytableEncoder() Creates a new encoder with the estimated length of 64k bytes.
NettyBytableEncoder(int estimatedLength) Creates a new encoder.

Method Summary

Modifier and Type	Method and Description
protected Object	encode(org.jboss.netty.channel.ChannelHandlerContext ctx, org.jboss.netty.channel.Channel channel, Object msg)

Methods inherited from class org.jboss.netty.handler.codec.oneone.OneToOneEncoder

doEncode, handleDownstream

Methods inherited from class java.lang.Object

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

Constructor Detail

NettyBytableEncoder

public NettyBytableEncoder()

Creates a new encoder with the estimated length of 64k bytes.

NettyBytableEncoder

public NettyBytableEncoder(int estimatedLength)

Creates a new encoder.

Parameters:

estimatedLength - the estimated byte length of the serialized form of an object.If the length of the serialized form exceeds this value, the internal buffer will be expanded automatically at the cost of memory bandwidth. If this value is too big, it will also waste memory bandwidth. To avoid unnecessary memory copy or allocation cost, please specify the properly estimated value.

Method Detail

encode

protected Object encode(org.jboss.netty.channel.ChannelHandlerContext ctx,
                        org.jboss.netty.channel.Channel channel,
                        Object msg)
                 throws Exception

Overrides:

encode in class org.jboss.netty.handler.codec.serialization.ObjectEncoder

Throws:

Exception