CoreServices.java

/*
 * Copyright (c) 2011.  Korwe Software
 *
 *  This file is part of TheCore.
 *
 *  TheCore is free software: you can redistribute it and/or modify it
 *  under the terms of the GNU Lesser General Public License as published by
 *  the Free Software Foundation, either version 3 of the License, or
 *  (at your option) any later version.
 *
 *  TheCore is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU Lesser General Public License for more details.
 *
 *  You should have received a copy of the GNU Lesser General Public License
 *  along with TheCore.  If not, see <http://www.gnu.org/licenses/>.
 */

package com.korwe.thecore.service;

import com.google.common.util.concurrent.Service;
import com.google.inject.servlet.GuiceFilter;
import com.korwe.thecore.service.ping.CorePingService;
import com.korwe.thecore.service.syndication.CoreSyndicationService;
import com.korwe.thecore.service.syndication.SyndicationServiceImpl;
import com.korwe.thecore.session.SessionManager;
import com.korwe.thecore.webcore.servlet.GuiceServletConfig;
import org.eclipse.jetty.server.Connector;
import org.eclipse.jetty.server.Server;
import org.eclipse.jetty.server.nio.SelectChannelConnector;
import org.eclipse.jetty.servlet.DefaultServlet;
import org.eclipse.jetty.servlet.ServletContextHandler;
import org.eclipse.jetty.util.thread.ExecutorThreadPool;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import java.util.HashSet;
import java.util.Set;

/**
 * @author <a href="mailto:nithia.govender@korwe.com">Nithia Govender</a>
 */
public class CoreServices {

    private static final Logger LOG = LoggerFactory.getLogger(CoreServices.class);

    private static Set<Service> services = new HashSet<Service>(5);

    public static void main(String[] args) {
        final Server servletServer = configureServer();
        final SessionManager sessionManager = new SessionManager();
        services.add(new CorePingService(10));
        services.add(new CoreSyndicationService(new SyndicationServiceImpl(),10));

        Runtime.getRuntime().addShutdownHook(new Thread() {
            @Override
            public void run() {
                sessionManager.stop();
//                webCoreListener.stop();
                for (Service service : services) {
                    service.stop();
                }

                try {
                    servletServer.stop();
                }
                catch (Exception e) {
                    LOG.error("Could not stop servletServer", e);
                }
            }
        });

        sessionManager.start();
//        webCoreListener.start();
        for (Service service : services) {
            service.start();
        }

        try {
            servletServer.start();
            servletServer.join();
        }
        catch (Exception e) {
            LOG.error("Could not start servletServer", e);
        }
    }

    private static Server configureServer() {
        Server server = new Server();
        Connector connector = new SelectChannelConnector();
        connector.setHost("0.0.0.0");
        connector.setPort(8090);
        server.setConnectors(new Connector[] {connector});
        ServletContextHandler contextHandler = new ServletContextHandler(server, "/", ServletContextHandler.NO_SESSIONS);
        contextHandler.addFilter(GuiceFilter.class, "/*", 0);
        contextHandler.addEventListener(new GuiceServletConfig());
        contextHandler.addServlet(DefaultServlet.class, "/");
        server.setThreadPool(new ExecutorThreadPool());
        return server;
    }
}