Java tutorial
/* * Copyright (c) 2015 Uber Technologies, Inc. * * Permission is hereby granted, free of charge, to any person obtaining a copy * of this software and associated documentation files (the "Software"), to deal * in the Software without restriction, including without limitation the rights * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell * copies of the Software, and to permit persons to whom the Software is * furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice shall be included in * all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN * THE SOFTWARE. */ package com.uber.tchannel.ping; import com.uber.tchannel.api.TChannel; import org.apache.commons.cli.CommandLine; import org.apache.commons.cli.CommandLineParser; import org.apache.commons.cli.DefaultParser; import org.apache.commons.cli.HelpFormatter; import org.apache.commons.cli.Options; import java.net.InetAddress; public class PingServer { private int port; public PingServer(int port) { this.port = port; } public static void main(String[] args) throws Exception { Options options = new Options(); options.addOption("p", "port", true, "Server Port to connect to"); options.addOption("?", "help", false, "Usage"); HelpFormatter formatter = new HelpFormatter(); CommandLineParser parser = new DefaultParser(); CommandLine cmd = parser.parse(options, args); if (cmd.hasOption("?")) { formatter.printHelp("PingClient", options, true); return; } int port = Integer.parseInt(cmd.getOptionValue("p", "8888")); System.out.println(String.format("Starting server on port: %d", port)); new PingServer(port).run(); System.out.println("Stopping server..."); } public void run() throws Exception { TChannel tchannel = new TChannel.Builder("ping-server").setServerHost(InetAddress.getLoopbackAddress()) .setServerPort(port).build(); tchannel.makeSubChannel("ping-server").register("ping", new PingRequestHandler()); tchannel.listen().channel().closeFuture().sync(); } }