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.papteco.web.netty; import io.netty.bootstrap.Bootstrap; import io.netty.channel.ChannelInitializer; import io.netty.channel.EventLoopGroup; import io.netty.channel.nio.NioEventLoopGroup; import io.netty.channel.socket.SocketChannel; import io.netty.channel.socket.nio.NioSocketChannel; import io.netty.handler.codec.serialization.ClassResolvers; import io.netty.handler.codec.serialization.ObjectEncoder; import java.util.concurrent.Callable; import com.papteco.web.beans.QueueItem; /** * Modification of {@link EchoClient} which utilizes Java object serialization. */ public class OpenFileClientBuilder extends BasicBuilder implements Callable { private final String host; private QueueItem openfile; private String filepath; private String[] fileStructPath; public OpenFileClientBuilder(String ip) { this.host = ip; } public OpenFileClientBuilder(String ip, QueueItem openfile, String filepath, String[] fileStructPath) { this.host = ip; this.openfile = openfile; this.filepath = filepath; this.fileStructPath = fileStructPath; } public static void main(String[] args) throws Exception { // Print usage if no argument is specified. // if (args.length < 2 || args.length > 3) { // System.err.println( // "Usage: " + ObjectEchoClient.class.getSimpleName() + // " <host> <port> [<first message size>]"); // return; // } // Parse options. // final String host = "localhost"; // final int port = 8080; // final int firstMessageSize; // // if (args.length == 3) { // firstMessageSize = Integer.parseInt(args[2]); // } else { // firstMessageSize = 256; // } // // new SustainableAppConnClientBuilder(host, port, // firstMessageSize).run(); } public Object call() throws Exception { EventLoopGroup group = new NioEventLoopGroup(); try { Bootstrap b = new Bootstrap(); b.group(group).channel(NioSocketChannel.class).handler(new ChannelInitializer<SocketChannel>() { @Override public void initChannel(SocketChannel ch) throws Exception { ch.pipeline().addLast(new ObjectEncoder(), new NewObjectDecoder(ClassResolvers.cacheDisabled(null)), new OpenFileClientHandler(openfile, filepath, fileStructPath)); } }); // Start the connection attempt. b.connect(host, PortTranslater(envsetting.getProperty("open_file_port"))).sync().channel().closeFuture() .sync(); } catch (InterruptedException e) { // TODO Auto-generated catch block throw e; } finally { group.shutdownGracefully(); } return "Success"; } }