com.tcp.client.Main.java Source code

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Here is the source code for com.tcp.client.Main.java

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/*
 * Copyright 2002-2012 the original author or authors.
 *
 * Licensed 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.tcp.client;

import java.io.IOException;
import java.net.ServerSocket;
import java.util.HashMap;
import java.util.Map;

import org.springframework.context.support.GenericXmlApplicationContext;
import org.springframework.core.env.MapPropertySource;

/**
 * Demonstrates the use of a gateway as an entry point into the integration flow.
 * The message generated by the gateway is sent over tcp by the outbound gateway
 * to the inbound gateway. In turn the inbound gateway sends the message to the
 * EchoService and the generated response is transmitted over tcp back to the server.
 */
public final class Main {

    /**
     * Prevent instantiation.
     */
    private Main() {
    }

    /**
     * Load the Spring Integration Application Context
     *
     * @param args - command line arguments
     * @throws InterruptedException 
     * @throws IOException 
     */
    public static void main(final String... args) throws InterruptedException, IOException {

        final GenericXmlApplicationContext context = Main.setupContext();
        final SimpleGateway gateway = context.getBean(SimpleGateway.class);

        new EchoService().execute(gateway);
    }

    public static GenericXmlApplicationContext setupContext() throws InterruptedException, IOException {

        int availableServerSocket = 5682;
        final GenericXmlApplicationContext context = new GenericXmlApplicationContext();

        System.out.println("===== Player 2 =====");

        while (true) {
            try {
                ServerSocket s = new ServerSocket(availableServerSocket);
                s.close();
                System.out.println("Player 1 is unavailable.. trying again!!");
                Thread.sleep(2000);

            } catch (IOException e) {
                System.out.println("Found player 1!!");
                break;
            }
        }

        final Map<String, Object> sockets = new HashMap<String, Object>();
        sockets.put("availableServerSocket", availableServerSocket);

        final MapPropertySource propertySource = new MapPropertySource("sockets", sockets);

        context.getEnvironment().getPropertySources().addLast(propertySource);
        context.load("classpath:META-INF/context.xml");
        context.registerShutdownHook();
        context.refresh();

        return context;
    }
}