102 lines
3.6 KiB
Java
102 lines
3.6 KiB
Java
/*
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* Copyright 2012 The Netty Project
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*
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* The Netty Project licenses this file to you under the Apache License,
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* version 2.0 (the "License"); you may not use this file except in compliance
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* with the License. You may obtain a copy of the License at:
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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*/
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package io.netty.channel;
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import java.net.SocketAddress;
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/**
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* {@link ChannelHandler} implementation which represents a combination out of a {@link ChannelInboundHandler} and
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* the {@link ChannelOutboundHandler}.
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*
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* It is a good starting point if your {@link ChannelHandler} implementation needs to intercept operations and also
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* state updates.
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*/
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public class ChannelDuplexHandler extends ChannelInboundHandlerAdapter implements ChannelOutboundHandler {
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/**
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* Calls {@link ChannelHandlerContext#bind(SocketAddress, ChannelPromise)} to forward
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* to the next {@link ChannelOutboundHandler} in the {@link ChannelPipeline}.
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*
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* Sub-classes may override this method to change behavior.
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*/
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@Override
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public void bind(ChannelHandlerContext ctx, SocketAddress localAddress,
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ChannelPromise future) throws Exception {
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ctx.bind(localAddress, future);
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}
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/**
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* Calls {@link ChannelHandlerContext#connect(SocketAddress, SocketAddress, ChannelPromise)} to forward
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* to the next {@link ChannelOutboundHandler} in the {@link ChannelPipeline}.
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*
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* Sub-classes may override this method to change behavior.
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*/
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@Override
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public void connect(ChannelHandlerContext ctx, SocketAddress remoteAddress,
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SocketAddress localAddress, ChannelPromise future) throws Exception {
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ctx.connect(remoteAddress, localAddress, future);
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}
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/**
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* Calls {@link ChannelHandlerContext#disconnect(ChannelPromise)} to forward
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* to the next {@link ChannelOutboundHandler} in the {@link ChannelPipeline}.
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*
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* Sub-classes may override this method to change behavior.
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*/
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@Override
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public void disconnect(ChannelHandlerContext ctx, ChannelPromise future)
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throws Exception {
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ctx.disconnect(future);
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}
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/**
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* Calls {@link ChannelHandlerContext#close(ChannelPromise)} to forward
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* to the next {@link ChannelOutboundHandler} in the {@link ChannelPipeline}.
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*
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* Sub-classes may override this method to change behavior.
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*/
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@Override
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public void close(ChannelHandlerContext ctx, ChannelPromise future) throws Exception {
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ctx.close(future);
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}
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/**
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* Calls {@link ChannelHandlerContext#close(ChannelPromise)} to forward
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* to the next {@link ChannelOutboundHandler} in the {@link ChannelPipeline}.
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*
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* Sub-classes may override this method to change behavior.
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*/
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@Override
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public void deregister(ChannelHandlerContext ctx, ChannelPromise future) throws Exception {
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ctx.deregister(future);
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}
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@Override
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public void read(ChannelHandlerContext ctx) throws Exception {
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ctx.read();
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}
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@Override
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public void write(ChannelHandlerContext ctx, Object msg, ChannelPromise promise) throws Exception {
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ctx.write(msg, promise);
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}
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@Override
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public void flush(ChannelHandlerContext ctx) throws Exception {
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ctx.flush();
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}
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}
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