Package com.couchbase.client.core.io.netty.kv

Class ErrorMapLoadingHandler

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.ChannelDuplexHandler

com.couchbase.client.core.io.netty.kv.ErrorMapLoadingHandler

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

@Internal
public class ErrorMapLoadingHandler
extends com.couchbase.client.core.deps.io.netty.channel.ChannelDuplexHandler

This handler tries to load the KV Error Map in a best effort manner.

We are trying to grab a KV error map from kv_engine, but if the server does not respond with a successful message and the configuration we keep moving on without it. The client has reasonable defaults in place and can operate without it. Note that there will still be a warning event generated if this is the case, since it is definitely not expected.

Since:

2.0.0

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

Constructor Summary

Constructors

Constructor	Description
ErrorMapLoadingHandler(EndpointContext endpointContext)	Creates a new ErrorMapLoadingHandler.

Method Summary

Modifier and Type	Method	Description
void	channelActive(com.couchbase.client.core.deps.io.netty.channel.ChannelHandlerContext ctx)
void	channelRead(com.couchbase.client.core.deps.io.netty.channel.ChannelHandlerContext ctx, Object msg)
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)	Intercepts the connect process inside the pipeline to only propagate either success or failure if the error map loading process is completed either way.

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

bind, close, deregister, disconnect, flush, read, write

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

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

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

Constructor Detail

ErrorMapLoadingHandler

public ErrorMapLoadingHandler(EndpointContext endpointContext)

Creates a new ErrorMapLoadingHandler.

Parameters:

endpointContext - the core context used to refer to values like the core id.

Method Detail

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)

Intercepts the connect process inside the pipeline to only propagate either success or failure if the error map loading process is completed either way.

Specified by:

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

Overrides:

connect in class com.couchbase.client.core.deps.io.netty.channel.ChannelDuplexHandler

Parameters:

ctx - the ChannelHandlerContext for which the connect operation is made.

remoteAddress - the SocketAddress to which it should connect.

localAddress - the SocketAddress which is used as source on connect.

promise - the ChannelPromise to notify once the operation completes.

channelActive

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

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

channelRead

public void channelRead(com.couchbase.client.core.deps.io.netty.channel.ChannelHandlerContext ctx,
                        Object msg)

Specified by:

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

Overrides:

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