PlatformManagerFactory.java

/*
 * Created on 18-Apr-2004
 * Created by Paul Gardner
 * Copyright (C) 2004, 2005, 2006 Aelitis, All Rights Reserved.
 *
 * This program 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.
 * 
 * AELITIS, SAS au capital de 46,603.30 euros
 * 8 Allee Lenotre, La Grille Royale, 78600 Le Mesnil le Roi, France.
 *
 */

package org.gudy.azureus2.platform;

import org.gudy.azureus2.core3.util.AEMonitor;
import org.gudy.azureus2.core3.util.Constants;
import org.gudy.azureus2.core3.util.Debug;
import org.gudy.azureus2.plugins.platform.PlatformManagerException;

/**
 * @author parg
 * 
 */
public class PlatformManagerFactory {
	protected static PlatformManager platform_manager;
	protected static AEMonitor class_mon = new AEMonitor("PlatformManagerFactory");

	public static PlatformManager getPlatformManager() {
		try {
			class_mon.enter();
			
			if (platform_manager == null) {
				try {
					if (getPlatformType() == PlatformManager.PT_WINDOWS) {

						platform_manager = org.gudy.azureus2.platform.win32.PlatformManagerImpl
								.getSingleton();
					} else if (getPlatformType() == PlatformManager.PT_MACOSX) {

						platform_manager = org.gudy.azureus2.platform.macosx.PlatformManagerImpl
								.getSingleton();
					} else if (getPlatformType() == PlatformManager.PT_UNIX) {

						platform_manager = org.gudy.azureus2.platform.unix.PlatformManagerImpl
								.getSingleton();
					}
				} catch (PlatformManagerException e) {
					e.printStackTrace();
					Debug.printStackTrace(e);
				} catch (Throwable e) {
					e.printStackTrace();
					Debug.printStackTrace(e);
				}
			}

			if (platform_manager == null) {
				platform_manager = org.gudy.azureus2.platform.dummy.PlatformManagerImpl
						.getSingleton();
			}

			return (platform_manager);
		} finally {
			class_mon.exit();
		}
	}

	public static int getPlatformType() {
		if (Constants.isWindows) {

			return (PlatformManager.PT_WINDOWS);

		} else if (Constants.isOSX) {

			return (PlatformManager.PT_MACOSX);

		} else if (Constants.isUnix) {

			return (PlatformManager.PT_UNIX);

		} else {
			return (PlatformManager.PT_OTHER);
		}
	}
}