org.apache.flink.queryablestate.network

Class ClientHandler<REQ extends MessageBody,RESP extends MessageBody>

java.lang.Object

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

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

org.apache.flink.queryablestate.network.ClientHandler<REQ,RESP>

Type Parameters:

REQ - the type of request the client will send.

RESP - the type of response the client expects to receive.

All Implemented Interfaces:

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

@Internal
public class ClientHandler<REQ extends MessageBody,RESP extends MessageBody>
extends org.apache.flink.shaded.netty4.io.netty.channel.ChannelInboundHandlerAdapter

The handler used by a Client to handling incoming messages.

Nested Class Summary

Nested classes/interfaces inherited from interface org.apache.flink.shaded.netty4.io.netty.channel.ChannelHandler

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

Constructor Summary

Constructors

Constructor and Description
ClientHandler(String clientName, MessageSerializer<REQ,RESP> serializer, ClientHandlerCallback<RESP> callback) Creates a handler with the callback.

Method Summary

Modifier and Type	Method and Description
void	channelInactive(org.apache.flink.shaded.netty4.io.netty.channel.ChannelHandlerContext ctx)
void	channelRead(org.apache.flink.shaded.netty4.io.netty.channel.ChannelHandlerContext ctx, Object msg)
void	exceptionCaught(org.apache.flink.shaded.netty4.io.netty.channel.ChannelHandlerContext ctx, Throwable cause)

Methods inherited from class org.apache.flink.shaded.netty4.io.netty.channel.ChannelInboundHandlerAdapter

channelActive, channelReadComplete, channelRegistered, channelUnregistered, channelWritabilityChanged, userEventTriggered

Methods inherited from class org.apache.flink.shaded.netty4.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 org.apache.flink.shaded.netty4.io.netty.channel.ChannelHandler

handlerAdded, handlerRemoved

Constructor Detail

ClientHandler

public ClientHandler(String clientName,
                     MessageSerializer<REQ,RESP> serializer,
                     ClientHandlerCallback<RESP> callback)

Creates a handler with the callback.

Parameters:

clientName - the name of the client.

serializer - the serializer used to (de-)serialize messages.

callback - Callback for responses.

Method Detail

channelRead

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

Specified by:

channelRead in interface org.apache.flink.shaded.netty4.io.netty.channel.ChannelInboundHandler

Overrides:

channelRead in class org.apache.flink.shaded.netty4.io.netty.channel.ChannelInboundHandlerAdapter

Throws:

Exception

exceptionCaught

public void exceptionCaught(org.apache.flink.shaded.netty4.io.netty.channel.ChannelHandlerContext ctx,
                            Throwable cause)
                     throws Exception

Specified by:

exceptionCaught in interface org.apache.flink.shaded.netty4.io.netty.channel.ChannelHandler

Specified by:

exceptionCaught in interface org.apache.flink.shaded.netty4.io.netty.channel.ChannelInboundHandler

Overrides:

exceptionCaught in class org.apache.flink.shaded.netty4.io.netty.channel.ChannelInboundHandlerAdapter

Throws:

Exception

channelInactive

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

Specified by:

channelInactive in interface org.apache.flink.shaded.netty4.io.netty.channel.ChannelInboundHandler

Overrides:

channelInactive in class org.apache.flink.shaded.netty4.io.netty.channel.ChannelInboundHandlerAdapter

Throws:

Exception