/***************************************************************************************************
 * Copyright (c) 2005 Eteration A.S. and others. All rights reserved. This program and the
 * accompanying materials are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 * 
 * Contributors: Eteration A.S. - initial API and implementation
 **************************************************************************************************/

package org.eclipse.jst.j2ee.ejb.annotations.internal.xdoclet;

import java.net.MalformedURLException;
import java.net.URL;
import java.util.MissingResourceException;
import java.util.ResourceBundle;

import org.eclipse.jface.preference.IPreferenceStore;
import org.eclipse.jface.resource.ImageDescriptor;
import org.eclipse.ui.plugin.AbstractUIPlugin;
import org.osgi.framework.BundleContext;

/**
 * The main plugin class to be used in the desktop.
 */
public class XDocletAnnotationPlugin extends AbstractUIPlugin {
	//The shared instance.
	private static XDocletAnnotationPlugin plugin;
	//Resource bundle.
	private ResourceBundle resourceBundle;
	public static final String PLUGINID = "org.eclipse.jst.j2ee.ejb.annotations.xdoclet";
	/**
	 * The constructor.
	 */
	public XDocletAnnotationPlugin() {
		super();
		plugin = this;
	}

	/**
	 * This method is called upon plug-in activation
	 */
	public void start(BundleContext context) throws Exception {
		super.start(context);
	}

	/**
	 * This method is called when the plug-in is stopped
	 */
	public void stop(BundleContext context) throws Exception {
		super.stop(context);
		plugin = null;
		resourceBundle = null;
	}

	/**
	 * Returns the shared instance.
	 */
	public static XDocletAnnotationPlugin getDefault() {
		return plugin;
	}

	/**
	 * Returns the string from the plugin's resource bundle,
	 * or 'key' if not found.
	 */
	public static String getResourceString(String key) {
		ResourceBundle bundle = XDocletAnnotationPlugin.getDefault().getResourceBundle();
		try {
			return (bundle != null) ? bundle.getString(key) : key;
		} catch (MissingResourceException e) {
			return key;
		}
	}

	/**
	 * Returns the plugin's resource bundle,
	 */
	public ResourceBundle getResourceBundle() {
		try {
			if (resourceBundle == null)
				resourceBundle = ResourceBundle.getBundle("org.eclipse.jst.j2ee.ejb.annotations.internal.emitter.model.xdoclet.XDocletAnnotationPluginResources");
		} catch (MissingResourceException x) {
			resourceBundle = null;
		}
		return resourceBundle;
	}
	
	/* (non-Javadoc)
	 * @see org.eclipse.ui.plugin.AbstractUIPlugin#initializeDefaultPreferences(org.eclipse.jface.preference.IPreferenceStore)
	 */
	protected void initializeDefaultPreferences(IPreferenceStore store) {
		XDocletPreferenceStore.initializeDefaultPreferences(store);
	}
	

	public static ImageDescriptor createImageDescriptor(URL root, String file) {
		try {
			URL urlToImage =
				new URL(root,file);
			return ImageDescriptor.createFromURL(urlToImage);
		} catch (MalformedURLException e) {
			Logger.logException(e);
			return null;
		}

	}	
	
}