Java tutorial
/* * 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: * * http://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 org.kobeyoung81.dummyhttpproxy; import io.netty.channel.Channel; import io.netty.channel.ChannelFuture; import io.netty.channel.ChannelFutureListener; import io.netty.channel.ChannelHandlerContext; import io.netty.channel.ChannelInboundHandlerAdapter; public class HexDumpProxyBackendHandler extends ChannelInboundHandlerAdapter { private final Channel inboundChannel; public HexDumpProxyBackendHandler(Channel inboundChannel) { this.inboundChannel = inboundChannel; } @Override public void channelActive(ChannelHandlerContext ctx) { ctx.read(); //ctx.write(Unpooled.EMPTY_BUFFER); } @Override public void channelRead(final ChannelHandlerContext ctx, Object msg) { inboundChannel.writeAndFlush(msg).addListener(new ChannelFutureListener() { @Override public void operationComplete(ChannelFuture future) { if (future.isSuccess()) { ctx.channel().read(); } else { future.channel().close(); } } }); } @Override public void channelInactive(ChannelHandlerContext ctx) { HexDumpProxyFrontendHandler.closeOnFlush(inboundChannel); } @Override public void exceptionCaught(ChannelHandlerContext ctx, Throwable cause) { cause.printStackTrace(); HexDumpProxyFrontendHandler.closeOnFlush(ctx.channel()); } }