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/*
 * 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;

/**
 * Abstract base class for {@link ChannelInboundHandler} implementations which provide
 * implementations of all of their methods.
 *
 * 

* This implementation just forward the operation to the next {@link ChannelHandler} in the * {@link ChannelPipeline}. Sub-classes may override a method implementation to change this. *

*

* Be aware that messages are not released after the {@link #channelRead(ChannelHandlerContext, Object)} * method returns automatically. If you are looking for a {@link ChannelInboundHandler} implementation that * releases the received messages automatically, please see {@link SimpleChannelInboundHandler}. *

*/ public class ChannelInboundHandlerAdapter extends ChannelHandlerAdapter implements ChannelInboundHandler { /** * Calls {@link ChannelHandlerContext#fireChannelRegistered()} to forward * to the next {@link ChannelInboundHandler} in the {@link ChannelPipeline}. * * Sub-classes may override this method to change behavior. */ @Skip @Override public void channelRegistered(ChannelHandlerContext ctx) throws Exception { ctx.fireChannelRegistered(); } /** * Calls {@link ChannelHandlerContext#fireChannelUnregistered()} to forward * to the next {@link ChannelInboundHandler} in the {@link ChannelPipeline}. * * Sub-classes may override this method to change behavior. */ @Skip @Override public void channelUnregistered(ChannelHandlerContext ctx) throws Exception { ctx.fireChannelUnregistered(); } /** * Calls {@link ChannelHandlerContext#fireChannelActive()} to forward * to the next {@link ChannelInboundHandler} in the {@link ChannelPipeline}. * * Sub-classes may override this method to change behavior. */ @Skip @Override public void channelActive(ChannelHandlerContext ctx) throws Exception { ctx.fireChannelActive(); } /** * Calls {@link ChannelHandlerContext#fireChannelInactive()} to forward * to the next {@link ChannelInboundHandler} in the {@link ChannelPipeline}. * * Sub-classes may override this method to change behavior. */ @Skip @Override public void channelInactive(ChannelHandlerContext ctx) throws Exception { ctx.fireChannelInactive(); } /** * Calls {@link ChannelHandlerContext#fireChannelRead(Object)} to forward * to the next {@link ChannelInboundHandler} in the {@link ChannelPipeline}. * * Sub-classes may override this method to change behavior. */ @Skip @Override public void channelRead(ChannelHandlerContext ctx, Object msg) throws Exception { ctx.fireChannelRead(msg); } /** * Calls {@link ChannelHandlerContext#fireChannelReadComplete()} to forward * to the next {@link ChannelInboundHandler} in the {@link ChannelPipeline}. * * Sub-classes may override this method to change behavior. */ @Skip @Override public void channelReadComplete(ChannelHandlerContext ctx) throws Exception { ctx.fireChannelReadComplete(); } /** * Calls {@link ChannelHandlerContext#fireUserEventTriggered(Object)} to forward * to the next {@link ChannelInboundHandler} in the {@link ChannelPipeline}. * * Sub-classes may override this method to change behavior. */ @Skip @Override public void userEventTriggered(ChannelHandlerContext ctx, Object evt) throws Exception { ctx.fireUserEventTriggered(evt); } /** * Calls {@link ChannelHandlerContext#fireChannelWritabilityChanged()} to forward * to the next {@link ChannelInboundHandler} in the {@link ChannelPipeline}. * * Sub-classes may override this method to change behavior. */ @Skip @Override public void channelWritabilityChanged(ChannelHandlerContext ctx) throws Exception { ctx.fireChannelWritabilityChanged(); } /** * Calls {@link ChannelHandlerContext#fireExceptionCaught(Throwable)} to forward * to the next {@link ChannelHandler} in the {@link ChannelPipeline}. * * Sub-classes may override this method to change behavior. */ @Skip @Override @SuppressWarnings("deprecation") public void exceptionCaught(ChannelHandlerContext ctx, Throwable cause) throws Exception { ctx.fireExceptionCaught(cause); } }




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