net.seedboxer.jetty.DaemonServer.java Source code

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Here is the source code for net.seedboxer.jetty.DaemonServer.java

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/*******************************************************************************
 * DaemonServer.java
 * 
 * Copyright (c) 2012 SeedBoxer Team.
 * 
 * This file is part of SeedBoxer.
 * 
 * SeedBoxer is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 * 
 * SeedBoxer 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 General Public License for more details.
 * 
 * You should have received a copy of the GNU General Public License
 * along with SeedBoxer.  If not, see <http ://www.gnu.org/licenses/>.
 ******************************************************************************/
package net.seedboxer.jetty;

import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.security.ProtectionDomain;

import org.apache.commons.io.FileUtils;
import org.eclipse.jetty.server.Server;
import org.eclipse.jetty.webapp.WebAppContext;

/**
 * @author harley
 * 
 */
public class DaemonServer {

    private static final String WS_PORT_PROP = "ws.port";
    private static final String PROEASY_PROPS = "seedboxer.properties";
    private static final String CONTEXT_PATH = "/";
    private static final String CONFIG_PATH = "seedboxer.config.path";
    private final int port;

    public static void main(String[] args) throws Exception {
        DaemonServer sc = new DaemonServer();
        sc.start();
    }

    private void registerShutdownHook(final Server server, final WebAppContext context) {
        Runtime.getRuntime().addShutdownHook(new Thread() {
            @Override
            public void run() {
                System.out.println("Shutdown hook ran!");
                try {
                    context.stop();
                } catch (Exception ignored) {
                }
                try {
                    server.stop();
                } catch (Exception ignored) {
                }
            }
        });
    }

    public DaemonServer() {
        try {
            String configFile = System.getProperty(CONFIG_PATH + File.separator + PROEASY_PROPS);
            System.getProperties().load(new FileInputStream(configFile));
        } catch (Exception ignored) {
        }

        port = Integer.parseInt(System.getProperty(WS_PORT_PROP, "8080"));
    }

    private void start() {
        // Start a Jetty server with some sensible(?) defaults
        try {

            Server srv = new Server(port);
            srv.setStopAtShutdown(true);

            // Get the war-file
            ProtectionDomain protectionDomain = this.getClass().getProtectionDomain();
            String warFile = protectionDomain.getCodeSource().getLocation().toExternalForm();
            String currentDir = new File(protectionDomain.getCodeSource().getLocation().getPath()).getParent();

            // Add the warFile (this jar)
            WebAppContext context = new WebAppContext();
            context.setContextPath(CONTEXT_PATH);
            context.setWar(warFile);
            resetTempDirectory(context, currentDir);

            srv.setHandler(context);

            // Register shutdown hook
            registerShutdownHook(srv, context);

            srv.start();
            srv.join();
        } catch (Exception e) {
            e.printStackTrace();
        }
    }

    private void resetTempDirectory(WebAppContext context, String currentDir) throws IOException {
        File workDir = new File(currentDir, "work");
        FileUtils.deleteDirectory(workDir);
        context.setTempDirectory(workDir);
    }

}