Package com.couchbase.client.dcp.transport.netty

Class DcpControlHandler

java.lang.Object

com.couchbase.client.core.deps.io.netty.channel.ChannelHandlerAdapter

com.couchbase.client.core.deps.io.netty.channel.ChannelInboundHandlerAdapter

com.couchbase.client.core.deps.io.netty.channel.SimpleChannelInboundHandler<T>

com.couchbase.client.dcp.transport.netty.DcpControlHandler

All Implemented Interfaces:

com.couchbase.client.core.deps.io.netty.channel.ChannelHandler, com.couchbase.client.core.deps.io.netty.channel.ChannelInboundHandler, com.couchbase.client.core.deps.io.netty.channel.ChannelOutboundHandler

public class DcpControlHandler
extends com.couchbase.client.core.deps.io.netty.channel.SimpleChannelInboundHandler<T>

Negotiates DCP control flags once connected and removes itself afterwards.

Since:

1.0.0

Author:

Michael Nitschinger

Nested Class Summary

Nested classes/interfaces inherited from interface com.couchbase.client.core.deps.io.netty.channel.ChannelHandler

com.couchbase.client.core.deps.io.netty.channel.ChannelHandler.Sharable

Method Summary

Modifier and Type	Method	Description
void	bind(com.couchbase.client.core.deps.io.netty.channel.ChannelHandlerContext ctx, SocketAddress localAddress, com.couchbase.client.core.deps.io.netty.channel.ChannelPromise promise)
void	channelActive(com.couchbase.client.core.deps.io.netty.channel.ChannelHandlerContext ctx)	Once the channel becomes active, start negotiating the dcp control params.
void	channelInactive(com.couchbase.client.core.deps.io.netty.channel.ChannelHandlerContext ctx)
protected void	channelRead0(com.couchbase.client.core.deps.io.netty.channel.ChannelHandlerContext ctx, com.couchbase.client.core.deps.io.netty.buffer.ByteBuf msg)	Since only one feature per req/res can be negotiated, repeat the process once a response comes back until the iterator is complete or a non-success response status is received.
void	close(com.couchbase.client.core.deps.io.netty.channel.ChannelHandlerContext ctx, com.couchbase.client.core.deps.io.netty.channel.ChannelPromise promise)
void	connect(com.couchbase.client.core.deps.io.netty.channel.ChannelHandlerContext ctx, SocketAddress remoteAddress, SocketAddress localAddress, com.couchbase.client.core.deps.io.netty.channel.ChannelPromise promise)	Intercept the connect phase and store the original promise.
void	deregister(com.couchbase.client.core.deps.io.netty.channel.ChannelHandlerContext ctx, com.couchbase.client.core.deps.io.netty.channel.ChannelPromise promise)
void	disconnect(com.couchbase.client.core.deps.io.netty.channel.ChannelHandlerContext ctx, com.couchbase.client.core.deps.io.netty.channel.ChannelPromise promise)
void	exceptionCaught(com.couchbase.client.core.deps.io.netty.channel.ChannelHandlerContext ctx, Throwable cause)
void	flush(com.couchbase.client.core.deps.io.netty.channel.ChannelHandlerContext ctx)
void	read(com.couchbase.client.core.deps.io.netty.channel.ChannelHandlerContext ctx)
void	userEventTriggered(com.couchbase.client.core.deps.io.netty.channel.ChannelHandlerContext ctx, Object evt)
void	write(com.couchbase.client.core.deps.io.netty.channel.ChannelHandlerContext ctx, Object msg, com.couchbase.client.core.deps.io.netty.channel.ChannelPromise promise)

Methods inherited from class com.couchbase.client.core.deps.io.netty.channel.SimpleChannelInboundHandler

acceptInboundMessage, channelRead

Methods inherited from class com.couchbase.client.core.deps.io.netty.channel.ChannelInboundHandlerAdapter

channelReadComplete, channelRegistered, channelUnregistered, channelWritabilityChanged

Methods inherited from class com.couchbase.client.core.deps.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 com.couchbase.client.core.deps.io.netty.channel.ChannelHandler

handlerAdded, handlerRemoved

Method Details

channelActive

public void channelActive(com.couchbase.client.core.deps.io.netty.channel.ChannelHandlerContext ctx)
                   throws Exception

Once the channel becomes active, start negotiating the dcp control params.

Specified by:

channelActive in interface com.couchbase.client.core.deps.io.netty.channel.ChannelInboundHandler

Overrides:

channelActive in class com.couchbase.client.core.deps.io.netty.channel.ChannelInboundHandlerAdapter

Throws:

Exception

channelRead0

protected void channelRead0(com.couchbase.client.core.deps.io.netty.channel.ChannelHandlerContext ctx,
 com.couchbase.client.core.deps.io.netty.buffer.ByteBuf msg)
                     throws Exception

Since only one feature per req/res can be negotiated, repeat the process once a response comes back until the iterator is complete or a non-success response status is received.

Specified by:

channelRead0 in class com.couchbase.client.core.deps.io.netty.channel.SimpleChannelInboundHandler<com.couchbase.client.core.deps.io.netty.buffer.ByteBuf>

Throws:

Exception

connect

public void connect(com.couchbase.client.core.deps.io.netty.channel.ChannelHandlerContext ctx,
 SocketAddress remoteAddress,
 SocketAddress localAddress,
 com.couchbase.client.core.deps.io.netty.channel.ChannelPromise promise)
             throws Exception

Intercept the connect phase and store the original promise.

Specified by:

connect in interface com.couchbase.client.core.deps.io.netty.channel.ChannelOutboundHandler

Throws:

Exception

bind

public void bind(com.couchbase.client.core.deps.io.netty.channel.ChannelHandlerContext ctx,
 SocketAddress localAddress,
 com.couchbase.client.core.deps.io.netty.channel.ChannelPromise promise)
          throws Exception

Specified by:

bind in interface com.couchbase.client.core.deps.io.netty.channel.ChannelOutboundHandler

Throws:

Exception

disconnect

public void disconnect(com.couchbase.client.core.deps.io.netty.channel.ChannelHandlerContext ctx,
 com.couchbase.client.core.deps.io.netty.channel.ChannelPromise promise)
                throws Exception

Specified by:

disconnect in interface com.couchbase.client.core.deps.io.netty.channel.ChannelOutboundHandler

Throws:

Exception

close

public void close(com.couchbase.client.core.deps.io.netty.channel.ChannelHandlerContext ctx,
 com.couchbase.client.core.deps.io.netty.channel.ChannelPromise promise)
           throws Exception

Specified by:

close in interface com.couchbase.client.core.deps.io.netty.channel.ChannelOutboundHandler

Throws:

Exception

deregister

public void deregister(com.couchbase.client.core.deps.io.netty.channel.ChannelHandlerContext ctx,
 com.couchbase.client.core.deps.io.netty.channel.ChannelPromise promise)
                throws Exception

Specified by:

deregister in interface com.couchbase.client.core.deps.io.netty.channel.ChannelOutboundHandler

Throws:

Exception

read

public void read(com.couchbase.client.core.deps.io.netty.channel.ChannelHandlerContext ctx)
          throws Exception

Specified by:

read in interface com.couchbase.client.core.deps.io.netty.channel.ChannelOutboundHandler

Throws:

Exception

write

public void write(com.couchbase.client.core.deps.io.netty.channel.ChannelHandlerContext ctx,
 Object msg,
 com.couchbase.client.core.deps.io.netty.channel.ChannelPromise promise)
           throws Exception

Specified by:

write in interface com.couchbase.client.core.deps.io.netty.channel.ChannelOutboundHandler

Throws:

Exception

flush

public void flush(com.couchbase.client.core.deps.io.netty.channel.ChannelHandlerContext ctx)
           throws Exception

Specified by:

flush in interface com.couchbase.client.core.deps.io.netty.channel.ChannelOutboundHandler

Throws:

Exception

exceptionCaught

public void exceptionCaught(com.couchbase.client.core.deps.io.netty.channel.ChannelHandlerContext ctx,
 Throwable cause)
                     throws Exception

Specified by:

exceptionCaught in interface com.couchbase.client.core.deps.io.netty.channel.ChannelHandler

Specified by:

exceptionCaught in interface com.couchbase.client.core.deps.io.netty.channel.ChannelInboundHandler

Overrides:

exceptionCaught in class com.couchbase.client.core.deps.io.netty.channel.ChannelInboundHandlerAdapter

Throws:

Exception

userEventTriggered

public void userEventTriggered(com.couchbase.client.core.deps.io.netty.channel.ChannelHandlerContext ctx,
 Object evt)
                        throws Exception

Specified by:

userEventTriggered in interface com.couchbase.client.core.deps.io.netty.channel.ChannelInboundHandler

Overrides:

userEventTriggered in class com.couchbase.client.core.deps.io.netty.channel.ChannelInboundHandlerAdapter

Throws:

Exception

channelInactive

public void channelInactive(com.couchbase.client.core.deps.io.netty.channel.ChannelHandlerContext ctx)
                     throws Exception

Specified by:

channelInactive in interface com.couchbase.client.core.deps.io.netty.channel.ChannelInboundHandler

Overrides:

channelInactive in class com.couchbase.client.core.deps.io.netty.channel.ChannelInboundHandlerAdapter

Throws:

Exception