io.reactivex.netty.contexts

Class AbstractServerContextHandler<R,W>

java.lang.Object

io.netty.channel.ChannelHandlerAdapter

io.netty.channel.ChannelInboundHandlerAdapter

io.netty.channel.ChannelDuplexHandler

io.reactivex.netty.contexts.AbstractContextHandler<R,W>

io.reactivex.netty.contexts.AbstractServerContextHandler<R,W>

Type Parameters:

R - The type of object this handler will read.

W - The type of object this handler will write.

All Implemented Interfaces:

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

Direct Known Subclasses:

HttpServerContextHandler

public abstract class AbstractServerContextHandler<R,W>
extends AbstractContextHandler<R,W>

A generic handler for all protocols that can handle ContextsContainers for servers. This handler does the following:

• Read any serialized contexts in the incoming HTTP requests. If any contexts are found, it will add it to the ContextsContainer for that request. This will create the ContextsContainer instance using the factory method newContextContainer(ContextKeySupplier). In case, any changes to the implementation of ContextsContainer is required, it should be done via overriding this factory method.
• Write any BiDirectional contexts which are modified back to the response. The modified contexts are found by the method ContextsContainer.getModifiedBidirectionalContexts()

All protocol specific actions are delegated to the abstract methods.

Nested Class Summary

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 RequestCorrelator	correlator
protected static org.slf4j.Logger	logger
protected RequestIdProvider	requestIdProvider

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	AbstractServerContextHandler(RequestCorrelator correlator, RequestIdProvider requestIdProvider)

Method Summary

Methods

Modifier and Type	Method and Description
void	channelRead(io.netty.channel.ChannelHandlerContext ctx, java.lang.Object msg)
protected abstract java.lang.String	getCurrentlyProcessingRequestId()
protected abstract boolean	isLastResponseFragmenTotWrite(java.lang.Object response)
protected ContextsContainer	newContextContainer(ContextKeySupplier keySupplier)
protected abstract void	newRequestIdWritten(java.lang.String requestId)
void	write(io.netty.channel.ChannelHandlerContext ctx, java.lang.Object msg, io.netty.channel.ChannelPromise promise)

Methods inherited from class io.reactivex.netty.contexts.AbstractContextHandler

addKey, isAcceptableToRead, isAcceptableToWrite, newKeySupplierForRead, newKeySupplierForWrite

Methods inherited from class io.netty.channel.ChannelDuplexHandler

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

Methods inherited from class io.netty.channel.ChannelInboundHandlerAdapter

channelActive, channelInactive, channelReadComplete, channelRegistered, channelUnregistered, channelWritabilityChanged, exceptionCaught, userEventTriggered

Methods inherited from class io.netty.channel.ChannelHandlerAdapter

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

exceptionCaught, handlerAdded, handlerRemoved

Field Detail

logger

protected static final org.slf4j.Logger logger

requestIdProvider

protected final RequestIdProvider requestIdProvider

correlator

protected final RequestCorrelator correlator

Constructor Detail

AbstractServerContextHandler

protected AbstractServerContextHandler(RequestCorrelator correlator,
                            RequestIdProvider requestIdProvider)

Method Detail

channelRead

public 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

write

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

Specified by:

write in interface io.netty.channel.ChannelOutboundHandler

Overrides:

write in class io.netty.channel.ChannelDuplexHandler

Throws:

java.lang.Exception

newRequestIdWritten

protected abstract void newRequestIdWritten(java.lang.String requestId)

getCurrentlyProcessingRequestId

protected abstract java.lang.String getCurrentlyProcessingRequestId()

isLastResponseFragmenTotWrite

protected abstract boolean isLastResponseFragmenTotWrite(java.lang.Object response)

newContextContainer

protected ContextsContainer newContextContainer(ContextKeySupplier keySupplier)