com.linkedin.r2.netty.handler.common

Class ClientEntityStreamHandler

java.lang.Object

io.netty.channel.ChannelHandlerAdapter

io.netty.channel.ChannelInboundHandlerAdapter

io.netty.channel.ChannelDuplexHandler

com.linkedin.r2.netty.handler.common.ClientEntityStreamHandler

All Implemented Interfaces:

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

@ChannelHandler.Sharable
public class ClientEntityStreamHandler
extends io.netty.channel.ChannelDuplexHandler

Implementation of ChannelDuplexHandler that is responsible for sending StreamRequest, receiving StreamResponseBuilder and response entity in the form of ByteStrings. This handler also integrates with R2 entity streaming with the help of StreamReader and StreamWriter. The implementation guarantees the user Callback is invoked at most once upon receiving response headers, exception, or channel inactive events. Together with timeout ScheduledFuture, the implementation can also guarantee the callback is invoked eventually.

Nested Class Summary

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

io.netty.channel.ChannelHandler.Sharable

Constructor Summary

Constructors

Constructor and Description
ClientEntityStreamHandler(long maxContentLength)

Method Summary

Modifier and Type	Method and Description
void	channelInactive(io.netty.channel.ChannelHandlerContext ctx)
void	channelRead(io.netty.channel.ChannelHandlerContext ctx, java.lang.Object msg)
void	exceptionCaught(io.netty.channel.ChannelHandlerContext ctx, java.lang.Throwable cause)
void	write(io.netty.channel.ChannelHandlerContext ctx, java.lang.Object msg, io.netty.channel.ChannelPromise promise)

Methods inherited from class io.netty.channel.ChannelDuplexHandler

bind, close, connect, deregister, disconnect, flush, read

Methods inherited from class io.netty.channel.ChannelInboundHandlerAdapter

channelActive, 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

Constructor Detail

ClientEntityStreamHandler

public ClientEntityStreamHandler(long maxContentLength)

Method Detail

write

public void write(io.netty.channel.ChannelHandlerContext ctx,
                  java.lang.Object msg,
                  io.netty.channel.ChannelPromise promise)

Specified by:

write in interface io.netty.channel.ChannelOutboundHandler

Overrides:

write in class io.netty.channel.ChannelDuplexHandler

channelRead

public void channelRead(io.netty.channel.ChannelHandlerContext ctx,
                        java.lang.Object msg)

Specified by:

channelRead in interface io.netty.channel.ChannelInboundHandler

Overrides:

channelRead in class io.netty.channel.ChannelInboundHandlerAdapter

channelInactive

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

Specified by:

channelInactive in interface io.netty.channel.ChannelInboundHandler

Overrides:

channelInactive in class io.netty.channel.ChannelInboundHandlerAdapter

exceptionCaught

public void exceptionCaught(io.netty.channel.ChannelHandlerContext ctx,
                            java.lang.Throwable cause)

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