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 com.phei.netty.codec.msgpack; import io.netty.channel.ChannelHandlerAdapter; import io.netty.channel.ChannelHandlerContext; import java.util.logging.Level; import java.util.logging.Logger; /** * Handler implementation for the echo client. It initiates the ping-pong * traffic between the echo client and server by sending the first message to * the server. */ public class EchoClientHandler extends ChannelHandlerAdapter { private static final Logger logger = Logger.getLogger(EchoClientHandler.class.getName()); private final int sendNumber; /** * Creates a client-side handler. */ public EchoClientHandler(int sendNumber) { this.sendNumber = sendNumber; } @Override public void channelActive(ChannelHandlerContext ctx) { UserInfo[] infos = UserInfo(); for (UserInfo infoE : infos) { ctx.write(infoE); } ctx.flush(); } private UserInfo[] UserInfo() { UserInfo[] userInfos = new UserInfo[sendNumber]; UserInfo userInfo = null; for (int i = 0; i < sendNumber; i++) { userInfo = new UserInfo(); userInfo.setAge(i); userInfo.setName("ABCDEFG --->" + i); userInfos[i] = userInfo; } return userInfos; } @Override public void channelRead(ChannelHandlerContext ctx, Object msg) throws Exception { System.out.println("Client receive the msgpack message : " + msg); ctx.write(msg); } @Override public void channelReadComplete(ChannelHandlerContext ctx) throws Exception { ctx.flush(); } @Override public void exceptionCaught(ChannelHandlerContext ctx, Throwable cause) { // Close the connection when an exception is raised. logger.log(Level.WARNING, "Unexpected exception from downstream.", cause); ctx.close(); } }