org.apache.giraph.comm.netty.handler

Class RequestServerHandler<R>

java.lang.Object

io.netty.channel.ChannelHandlerAdapter

io.netty.channel.ChannelInboundHandlerAdapter

org.apache.giraph.comm.netty.handler.RequestServerHandler<R>

Type Parameters:

R - Request type

All Implemented Interfaces:

io.netty.channel.ChannelHandler, io.netty.channel.ChannelInboundHandler

Direct Known Subclasses:

MasterRequestServerHandler, WorkerRequestServerHandler

public abstract class RequestServerHandler<R>
extends io.netty.channel.ChannelInboundHandlerAdapter

Generic handler of requests.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static interface	RequestServerHandler.Factory Factory for RequestServerHandler

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

io.netty.channel.ChannelHandler.Sharable

Field Summary

Fields

Modifier and Type	Field and Description
protected FlowControl	flowControl Flow control used in sending requests
static int	RESPONSE_BYTES Number of bytes in the encoded response

Constructor Summary

Constructors

Constructor and Description
RequestServerHandler(WorkerRequestReservedMap workerRequestReservedMap, ImmutableClassesGiraphConfiguration conf, TaskInfo myTaskInfo, Thread.UncaughtExceptionHandler exceptionHandler) Constructor

Method Summary

Modifier and Type	Method and Description
void	channelActive(io.netty.channel.ChannelHandlerContext ctx)
void	channelInactive(io.netty.channel.ChannelHandlerContext ctx)
void	channelRead(io.netty.channel.ChannelHandlerContext ctx, Object msg)
void	exceptionCaught(io.netty.channel.ChannelHandlerContext ctx, Throwable cause)
abstract void	processRequest(R request) Process request

Methods inherited from class io.netty.channel.ChannelInboundHandlerAdapter

channelReadComplete, channelRegistered, channelUnregistered, channelWritabilityChanged, 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

Field Detail

RESPONSE_BYTES

public static final int RESPONSE_BYTES

Number of bytes in the encoded response

See Also:

Constant Field Values

flowControl

protected FlowControl flowControl

Flow control used in sending requests

Constructor Detail

RequestServerHandler

public RequestServerHandler(WorkerRequestReservedMap workerRequestReservedMap,
                            ImmutableClassesGiraphConfiguration conf,
                            TaskInfo myTaskInfo,
                            Thread.UncaughtExceptionHandler exceptionHandler)

Constructor

Parameters:

workerRequestReservedMap - Worker request reservation map

conf - Configuration

myTaskInfo - Current task info

exceptionHandler - Handles uncaught exceptions

Method Detail

channelRead

public void channelRead(io.netty.channel.ChannelHandlerContext ctx,
                        Object msg)
                 throws Exception

Specified by:

channelRead in interface io.netty.channel.ChannelInboundHandler

Overrides:

channelRead in class io.netty.channel.ChannelInboundHandlerAdapter

Throws:

Exception

processRequest

public abstract void processRequest(R request)

Process request

Parameters:

request - Request to process

channelActive

public void channelActive(io.netty.channel.ChannelHandlerContext ctx)
                   throws Exception

Specified by:

channelActive in interface io.netty.channel.ChannelInboundHandler

Overrides:

channelActive in class io.netty.channel.ChannelInboundHandlerAdapter

Throws:

Exception

channelInactive

public void channelInactive(io.netty.channel.ChannelHandlerContext ctx)
                     throws Exception

Specified by:

channelInactive in interface io.netty.channel.ChannelInboundHandler

Overrides:

channelInactive in class io.netty.channel.ChannelInboundHandlerAdapter

Throws:

Exception

exceptionCaught

public void exceptionCaught(io.netty.channel.ChannelHandlerContext ctx,
                            Throwable cause)
                     throws Exception

Specified by:

exceptionCaught in interface io.netty.channel.ChannelHandler

Specified by:

exceptionCaught in interface io.netty.channel.ChannelInboundHandler

Overrides:

exceptionCaught in class io.netty.channel.ChannelInboundHandlerAdapter

Throws:

Exception