io.reactivex.netty.channel

Class BackpressureManagingHandler

java.lang.Object

io.netty.channel.ChannelHandlerAdapter

io.netty.channel.ChannelInboundHandlerAdapter

io.netty.channel.ChannelDuplexHandler

io.reactivex.netty.channel.BackpressureManagingHandler

All Implemented Interfaces:

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

Direct Known Subclasses:

AbstractConnectionToChannelBridge

public abstract class BackpressureManagingHandler
extends io.netty.channel.ChannelDuplexHandler

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
protected static class	BackpressureManagingHandler.RequestReadIfRequiredEvent

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

io.netty.channel.ChannelHandler.Sharable

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	BackpressureManagingHandler(java.lang.String thisHandlerName)

Method Summary

Modifier and Type	Method and Description
void	channelRead(io.netty.channel.ChannelHandlerContext ctx, java.lang.Object msg)
void	channelReadComplete(io.netty.channel.ChannelHandlerContext ctx)
void	handlerAdded(io.netty.channel.ChannelHandlerContext ctx)
void	handlerRemoved(io.netty.channel.ChannelHandlerContext ctx)
protected abstract void	newMessage(io.netty.channel.ChannelHandlerContext ctx, java.lang.Object msg)
void	read(io.netty.channel.ChannelHandlerContext ctx)
protected abstract boolean	shouldReadMore(io.netty.channel.ChannelHandlerContext ctx)
void	userEventTriggered(io.netty.channel.ChannelHandlerContext ctx, java.lang.Object evt)
void	write(io.netty.channel.ChannelHandlerContext ctx, java.lang.Object msg, io.netty.channel.ChannelPromise promise) Intercepts a write on the channel.

Methods inherited from class io.netty.channel.ChannelDuplexHandler

bind, close, connect, deregister, disconnect, flush

Methods inherited from class io.netty.channel.ChannelInboundHandlerAdapter

channelActive, channelInactive, channelRegistered, channelUnregistered, channelWritabilityChanged, exceptionCaught

Methods inherited from class io.netty.channel.ChannelHandlerAdapter

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

exceptionCaught

Constructor Detail

BackpressureManagingHandler

protected BackpressureManagingHandler(java.lang.String thisHandlerName)

Method Detail

channelRead

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

Specified by:

channelRead in interface io.netty.channel.ChannelInboundHandler

Overrides:

channelRead in class io.netty.channel.ChannelInboundHandlerAdapter

Throws:

java.lang.Exception

handlerAdded

public void handlerAdded(io.netty.channel.ChannelHandlerContext ctx)
                  throws java.lang.Exception

Specified by:

handlerAdded in interface io.netty.channel.ChannelHandler

Overrides:

handlerAdded in class io.netty.channel.ChannelHandlerAdapter

Throws:

java.lang.Exception

handlerRemoved

public void handlerRemoved(io.netty.channel.ChannelHandlerContext ctx)
                    throws java.lang.Exception

Specified by:

handlerRemoved in interface io.netty.channel.ChannelHandler

Overrides:

handlerRemoved in class io.netty.channel.ChannelHandlerAdapter

Throws:

java.lang.Exception

channelReadComplete

public final void channelReadComplete(io.netty.channel.ChannelHandlerContext ctx)
                               throws java.lang.Exception

Specified by:

channelReadComplete in interface io.netty.channel.ChannelInboundHandler

Overrides:

channelReadComplete in class io.netty.channel.ChannelInboundHandlerAdapter

Throws:

java.lang.Exception

read

public final void read(io.netty.channel.ChannelHandlerContext ctx)
                throws java.lang.Exception

Specified by:

read in interface io.netty.channel.ChannelOutboundHandler

Overrides:

read in class io.netty.channel.ChannelDuplexHandler

Throws:

java.lang.Exception

write

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

Intercepts a write on the channel. The following message types are handled:

• String: If the pipeline is not configured to write a String, this converts the string to a ByteBuf and then writes it on the channel.
• byte[]: If the pipeline is not configured to write a byte[], this converts the byte[] to a ByteBuf and then writes it on the channel.
• Observable: Subscribes to the Observable and writes all items, requesting the next item if and only if the channel is writable as indicated by Channel.isWritable()

Specified by:

write in interface io.netty.channel.ChannelOutboundHandler

Overrides:

write in class io.netty.channel.ChannelDuplexHandler

Parameters:

ctx - Channel handler context.

msg - Message to write.

promise - Promise for the completion of write.

Throws:

java.lang.Exception - If there is an error handling this write.

userEventTriggered

public void userEventTriggered(io.netty.channel.ChannelHandlerContext ctx,
                               java.lang.Object evt)
                        throws java.lang.Exception

Specified by:

userEventTriggered in interface io.netty.channel.ChannelInboundHandler

Overrides:

userEventTriggered in class io.netty.channel.ChannelInboundHandlerAdapter

Throws:

java.lang.Exception

newMessage

protected abstract void newMessage(io.netty.channel.ChannelHandlerContext ctx,
                                   java.lang.Object msg)

shouldReadMore

protected abstract boolean shouldReadMore(io.netty.channel.ChannelHandlerContext ctx)