Jbpm3PreferencesManager.java

/*
 * JBoss, Home of Professional Open Source
 * Copyright 2005, JBoss Inc., and individual contributors as indicated
 * by the @authors tag. See the copyright.txt in the distribution for a
 * full listing of individual contributors.
 *
 * This 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 2.1 of
 * the License, or (at your option) any later version.
 *
 * This software 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 this software; if not, write to the Free
 * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
 * 02110-1301 USA, or see the FSF site: http://www.fsf.org.
 */
package org.jbpm.gd.jpdl.prefs;

import java.io.File;

import org.jboss.tools.jbpm.Constants;
import org.jboss.tools.jbpm.preferences.PreferencesManager;
import org.jbpm.gd.jpdl.Plugin;

public class Jbpm3PreferencesManager extends PreferencesManager {
		
	private static Jbpm3PreferencesManager INSTANCE = new Jbpm3PreferencesManager();
	
	public static PreferencesManager getInstance() {
		if (INSTANCE == null) {
			INSTANCE = new Jbpm3PreferencesManager();
		}
		return INSTANCE;
	}
	
	protected void initialize() {
		File installationsFile = 
			Plugin.getDefault().getStateLocation().append("jbpm-installations.xml").toFile();
		if (installationsFile.exists()) {
			initializePreferredJbpmName();
			loadInstallations(installationsFile);
			saveInstallations();
			loadInstallations();
		}
		installationsFile.delete();
		super.initialize();
	}
	
	@SuppressWarnings("deprecation")
	private void initializePreferredJbpmName() {
		String preferredJbpmName = Plugin.getDefault().getPluginPreferences().getString(Constants.JBPM_NAME);
		if (preferredJbpmName != null) {
			setPreferredJbpmName(preferredJbpmName);
		}
	}
	
}