com.couchbase.client.core.endpoint.kv

Class KeyValueFeatureHandler

java.lang.Object

io.netty.channel.ChannelHandlerAdapter

io.netty.channel.ChannelInboundHandlerAdapter

io.netty.channel.SimpleChannelInboundHandler<FullBinaryMemcacheResponse>

com.couchbase.client.core.endpoint.kv.KeyValueFeatureHandler

All Implemented Interfaces:

ChannelHandler, ChannelInboundHandler, ChannelOutboundHandler

public class KeyValueFeatureHandler
extends SimpleChannelInboundHandler<FullBinaryMemcacheResponse>
implements ChannelOutboundHandler

This handler negotiates the enabled features through the HELLO command.

Like the SASL auth handler, this handler intercepts the original connect process to properly negotiate the supported features with the server. Once the features are negotiated they are sent through custom events up the pipeline and the handler removes itself.

Since:

1.2.0

Author:

Michael Nitschinger

Nested Class Summary

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

ChannelHandler.Sharable

Constructor Summary

Constructors

Constructor and Description
KeyValueFeatureHandler(CoreEnvironment environment)

Method Summary

Modifier and Type	Method and Description
void	bind(ChannelHandlerContext ctx, SocketAddress localAddress, ChannelPromise promise)
void	channelActive(ChannelHandlerContext ctx)
protected void	channelRead0(ChannelHandlerContext ctx, FullBinaryMemcacheResponse msg)
void	close(ChannelHandlerContext ctx, ChannelPromise promise)
void	connect(ChannelHandlerContext ctx, SocketAddress remoteAddress, SocketAddress localAddress, ChannelPromise promise)
void	deregister(ChannelHandlerContext ctx, ChannelPromise promise)
void	disconnect(ChannelHandlerContext ctx, ChannelPromise promise)
void	flush(ChannelHandlerContext ctx)
void	read(ChannelHandlerContext ctx)
void	write(ChannelHandlerContext ctx, Object msg, ChannelPromise promise)

Methods inherited from class io.netty.channel.SimpleChannelInboundHandler

acceptInboundMessage, channelRead

Methods inherited from class io.netty.channel.ChannelInboundHandlerAdapter

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

Constructor Detail

KeyValueFeatureHandler

public KeyValueFeatureHandler(CoreEnvironment environment)

Method Detail

channelRead0

protected void channelRead0(ChannelHandlerContext ctx,
                            FullBinaryMemcacheResponse msg)
                     throws Exception

Specified by:

channelRead0 in class SimpleChannelInboundHandler<FullBinaryMemcacheResponse>

Throws:

Exception

channelActive

public void channelActive(ChannelHandlerContext ctx)
                   throws Exception

Specified by:

channelActive in interface ChannelInboundHandler

Overrides:

channelActive in class ChannelInboundHandlerAdapter

Throws:

Exception

connect

public void connect(ChannelHandlerContext ctx,
                    SocketAddress remoteAddress,
                    SocketAddress localAddress,
                    ChannelPromise promise)
             throws Exception

Specified by:

connect in interface ChannelOutboundHandler

Throws:

Exception

disconnect

public void disconnect(ChannelHandlerContext ctx,
                       ChannelPromise promise)
                throws Exception

Specified by:

disconnect in interface ChannelOutboundHandler

Throws:

Exception

close

public void close(ChannelHandlerContext ctx,
                  ChannelPromise promise)
           throws Exception

Specified by:

close in interface ChannelOutboundHandler

Throws:

Exception

deregister

public void deregister(ChannelHandlerContext ctx,
                       ChannelPromise promise)
                throws Exception

Specified by:

deregister in interface ChannelOutboundHandler

Throws:

Exception

read

public void read(ChannelHandlerContext ctx)
          throws Exception

Specified by:

read in interface ChannelOutboundHandler

Throws:

Exception

write

public void write(ChannelHandlerContext ctx,
                  Object msg,
                  ChannelPromise promise)
           throws Exception

Specified by:

write in interface ChannelOutboundHandler

Throws:

Exception

flush

public void flush(ChannelHandlerContext ctx)
           throws Exception

Specified by:

flush in interface ChannelOutboundHandler

Throws:

Exception

bind

public void bind(ChannelHandlerContext ctx,
                 SocketAddress localAddress,
                 ChannelPromise promise)
          throws Exception

Specified by:

bind in interface ChannelOutboundHandler

Throws:

Exception