org.apache.flink.runtime.io.network.netty

类 NettyMessageClientDecoderDelegate

java.lang.Object

org.apache.flink.shaded.netty4.io.netty.channel.ChannelHandlerAdapter

org.apache.flink.shaded.netty4.io.netty.channel.ChannelInboundHandlerAdapter

org.apache.flink.runtime.io.network.netty.NettyMessageClientDecoderDelegate

所有已实现的接口:

org.apache.flink.shaded.netty4.io.netty.channel.ChannelHandler, org.apache.flink.shaded.netty4.io.netty.channel.ChannelInboundHandler

public class NettyMessageClientDecoderDelegate
extends org.apache.flink.shaded.netty4.io.netty.channel.ChannelInboundHandlerAdapter

Decodes messages from the received netty buffers. This decoder assumes the messages have the following format: +-----------------------------------+--------------------------------+ | FRAME_HEADER || MESSAGE_HEADER | DATA BUFFER (Optional) | +-----------------------------------+--------------------------------+

This decoder decodes the frame header and delegates the following work to the corresponding message decoders according to the message type. During this process The frame header and message header are only accumulated if they span received multiple netty buffers, and the data buffer is copied directly to the buffer of corresponding input channel to avoid more copying.

The format of the frame header is +------------------+------------------+--------+ | FRAME LENGTH (4) | MAGIC NUMBER (4) | ID (1) | +------------------+------------------+--------+

嵌套类概要

从接口继承的嵌套类/接口 org.apache.flink.shaded.netty4.io.netty.channel.ChannelHandler

org.apache.flink.shaded.netty4.io.netty.channel.ChannelHandler.Sharable

方法概要

限定符和类型	方法和说明
void	channelActive(org.apache.flink.shaded.netty4.io.netty.channel.ChannelHandlerContext ctx)
void	channelInactive(org.apache.flink.shaded.netty4.io.netty.channel.ChannelHandlerContext ctx) Releases resources when the channel is closed.
void	channelRead(org.apache.flink.shaded.netty4.io.netty.channel.ChannelHandlerContext ctx, Object msg)

从类继承的方法 org.apache.flink.shaded.netty4.io.netty.channel.ChannelInboundHandlerAdapter

channelReadComplete, channelRegistered, channelUnregistered, channelWritabilityChanged, exceptionCaught, userEventTriggered

从类继承的方法 org.apache.flink.shaded.netty4.io.netty.channel.ChannelHandlerAdapter

ensureNotSharable, handlerAdded, handlerRemoved, isSharable

从类继承的方法 java.lang.Object

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

从接口继承的方法 org.apache.flink.shaded.netty4.io.netty.channel.ChannelHandler

handlerAdded, handlerRemoved

方法详细资料

channelActive

public void channelActive(org.apache.flink.shaded.netty4.io.netty.channel.ChannelHandlerContext ctx)
                   throws Exception

指定者:

channelActive 在接口中 org.apache.flink.shaded.netty4.io.netty.channel.ChannelInboundHandler

覆盖:

channelActive 在类中 org.apache.flink.shaded.netty4.io.netty.channel.ChannelInboundHandlerAdapter

抛出:

Exception

channelInactive

public void channelInactive(org.apache.flink.shaded.netty4.io.netty.channel.ChannelHandlerContext ctx)
                     throws Exception

Releases resources when the channel is closed. When exceptions are thrown during processing received netty buffers, CreditBasedPartitionRequestClientHandler is expected to catch the exception and close the channel and trigger this notification.

指定者:

channelInactive 在接口中 org.apache.flink.shaded.netty4.io.netty.channel.ChannelInboundHandler

覆盖:

channelInactive 在类中 org.apache.flink.shaded.netty4.io.netty.channel.ChannelInboundHandlerAdapter

参数:

ctx - The context of the channel close notification.

抛出:

Exception

channelRead

public void channelRead(org.apache.flink.shaded.netty4.io.netty.channel.ChannelHandlerContext ctx,
                        Object msg)
                 throws Exception

指定者:

channelRead 在接口中 org.apache.flink.shaded.netty4.io.netty.channel.ChannelInboundHandler

覆盖:

channelRead 在类中 org.apache.flink.shaded.netty4.io.netty.channel.ChannelInboundHandlerAdapter

抛出:

Exception