Startup.java :  » RSS-RDF » nntp-rss » org » methodize » nntprss » Java Open Source

package org.methodize.nntprss;

/* -----------------------------------------------------------
 * nntp//rss - a bridge between the RSS world and NNTP clients
 * Copyright (c) 2002, 2003 Jason Brome.  All Rights Reserved.
 *
 * email: nntprss@methodize.org
 * mail:  Methodize Solutions
 *        PO Box 3865
 *        Grand Central Station
 *        New York NY 10163
 * 
 * This file is part of nntp//rss
 * 
 * nntp//rss 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 2 of the License, or (at your option) any 
 * later version.
 *
 * This program 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 this program; if not, write to the 
 * Free Software Foundation, Inc., 59 Temple Place, Suite 330, 
 * Boston, MA  02111-1307  USA
 * ----------------------------------------------------- */

import java.io.File;
import java.io.IOException;
import java.lang.reflect.Method;
import java.net.URL;
import java.net.URLClassLoader;


/**
 * @author Jason Brome <jason@methodize.org>
 * @version $Id: Startup.java,v 1.3 2003/03/22 16:25:42 jasonbrome Exp $
 */
public class Startup {

  private static String[] resources = new String[]{
      "./nntprss.jar",
      "./ext/lib/log4j-1.2.7.jar",
      "./ext/lib/commons-collections.jar",
      "./ext/lib/commons-dbcp.jar",
      "./ext/lib/commons-pool.jar",
      "./ext/lib/javax.servlet.jar",
      "./ext/lib/org.mortbay.jetty-jdk1.2.jar",
      "./ext/lib/hsqldb.jar",
      "./ext/lib/crimson.jar",
      "./ext/lib/xmlrpc-1.1.jar",
      "./ext/lib/mailapi.jar",
      "./ext/lib/activation.jar",
      "./ext/lib/systray4j.jar",
      ".",

      };

  public static void main(String[] args) {
    try {
      new Startup().run(args);
    } catch(Exception e) {
      e.printStackTrace();
    }
  }  
  
  public void run(String[] args) throws Exception {
    URL resourceURLs[] = new URL[resources.length];

    for(int resCount = 0; resCount < resources.length; resCount++) {
      try {
        File file = new File(resources[resCount]);
        if(file.exists()) {
          resourceURLs[resCount] = file.getCanonicalFile().toURL();
        } else {
          throw new RuntimeException("Missing file: " + file.toString());
        }
      } catch(IOException ie) {
        ie.printStackTrace();
      }
    }

    ClassLoader existingClassLoader =
      Thread.currentThread().getContextClassLoader();
    URLClassLoader urlClassLoader = 
      URLClassLoader.newInstance(resourceURLs, existingClassLoader);
    Thread.currentThread().setContextClassLoader(urlClassLoader);

    Class clazz = urlClassLoader.loadClass("org.methodize.nntprss.Main");
    Method methods[] = clazz.getMethods();
    Method mainMethod = null;
    for(int i = 0; i < methods.length; i++) {
      if(methods[i].getName().equals("main")) {
        mainMethod = methods[i];
        break;
      }
    }
      
    mainMethod.invoke(null, new Object[] { args });
  }
  
  // Shutdown hook for Windows Java Service Wrappers
  // e.g. JNT
  public static void stopApplication() {
    System.exit(0);
  }  
}