io.netty.channel.ChannelDuplexHandler Maven / Gradle / Ivy
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This artifact provides a single jar that contains all classes required to use remote EJB and JMS, including
all dependencies. It is intended for use by those not using maven, maven users should just import the EJB and
JMS BOM's instead (shaded JAR's cause lots of problems with maven, as it is very easy to inadvertently end up
with different versions on classes on the class path).
/*
* Copyright 2012 The Netty Project
*
* The Netty Project licenses this file to you under the Apache License,
* version 2.0 (the "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at:
*
* https://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
* License for the specific language governing permissions and limitations
* under the License.
*/
package io.netty.channel;
import io.netty.channel.ChannelHandlerMask.Skip;
import java.net.SocketAddress;
/**
* {@link ChannelHandler} implementation which represents a combination out of a {@link ChannelInboundHandler} and
* the {@link ChannelOutboundHandler}.
*
* It is a good starting point if your {@link ChannelHandler} implementation needs to intercept operations and also
* state updates.
*/
public class ChannelDuplexHandler extends ChannelInboundHandlerAdapter implements ChannelOutboundHandler {
/**
* Calls {@link ChannelHandlerContext#bind(SocketAddress, ChannelPromise)} to forward
* to the next {@link ChannelOutboundHandler} in the {@link ChannelPipeline}.
*
* Sub-classes may override this method to change behavior.
*/
@Skip
@Override
public void bind(ChannelHandlerContext ctx, SocketAddress localAddress,
ChannelPromise promise) throws Exception {
ctx.bind(localAddress, promise);
}
/**
* Calls {@link ChannelHandlerContext#connect(SocketAddress, SocketAddress, ChannelPromise)} to forward
* to the next {@link ChannelOutboundHandler} in the {@link ChannelPipeline}.
*
* Sub-classes may override this method to change behavior.
*/
@Skip
@Override
public void connect(ChannelHandlerContext ctx, SocketAddress remoteAddress,
SocketAddress localAddress, ChannelPromise promise) throws Exception {
ctx.connect(remoteAddress, localAddress, promise);
}
/**
* Calls {@link ChannelHandlerContext#disconnect(ChannelPromise)} to forward
* to the next {@link ChannelOutboundHandler} in the {@link ChannelPipeline}.
*
* Sub-classes may override this method to change behavior.
*/
@Skip
@Override
public void disconnect(ChannelHandlerContext ctx, ChannelPromise promise)
throws Exception {
ctx.disconnect(promise);
}
/**
* Calls {@link ChannelHandlerContext#close(ChannelPromise)} to forward
* to the next {@link ChannelOutboundHandler} in the {@link ChannelPipeline}.
*
* Sub-classes may override this method to change behavior.
*/
@Skip
@Override
public void close(ChannelHandlerContext ctx, ChannelPromise promise) throws Exception {
ctx.close(promise);
}
/**
* Calls {@link ChannelHandlerContext#deregister(ChannelPromise)} to forward
* to the next {@link ChannelOutboundHandler} in the {@link ChannelPipeline}.
*
* Sub-classes may override this method to change behavior.
*/
@Skip
@Override
public void deregister(ChannelHandlerContext ctx, ChannelPromise promise) throws Exception {
ctx.deregister(promise);
}
/**
* Calls {@link ChannelHandlerContext#read()} to forward
* to the next {@link ChannelOutboundHandler} in the {@link ChannelPipeline}.
*
* Sub-classes may override this method to change behavior.
*/
@Skip
@Override
public void read(ChannelHandlerContext ctx) throws Exception {
ctx.read();
}
/**
* Calls {@link ChannelHandlerContext#write(Object, ChannelPromise)} to forward
* to the next {@link ChannelOutboundHandler} in the {@link ChannelPipeline}.
*
* Sub-classes may override this method to change behavior.
*/
@Skip
@Override
public void write(ChannelHandlerContext ctx, Object msg, ChannelPromise promise) throws Exception {
ctx.write(msg, promise);
}
/**
* Calls {@link ChannelHandlerContext#flush()} to forward
* to the next {@link ChannelOutboundHandler} in the {@link ChannelPipeline}.
*
* Sub-classes may override this method to change behavior.
*/
@Skip
@Override
public void flush(ChannelHandlerContext ctx) throws Exception {
ctx.flush();
}
}