| /******************************************************************************* |
| * Copyright (c) 2003, 2007 IBM Corporation 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: |
| * IBM Corporation - initial API and implementation |
| *******************************************************************************/ |
| package org.eclipse.jst.j2ee.navigator.internal.plugin; |
| |
| import java.net.URL; |
| import java.util.Collections; |
| |
| import org.eclipse.core.resources.IWorkspace; |
| import org.eclipse.core.resources.ResourcesPlugin; |
| import org.eclipse.core.runtime.FileLocator; |
| import org.eclipse.core.runtime.IStatus; |
| import org.eclipse.core.runtime.Path; |
| import org.eclipse.core.runtime.Status; |
| import org.eclipse.jface.resource.ImageDescriptor; |
| import org.eclipse.jface.resource.ImageRegistry; |
| import org.eclipse.swt.graphics.Image; |
| import org.eclipse.swt.widgets.Display; |
| import org.eclipse.ui.plugin.AbstractUIPlugin; |
| import org.osgi.framework.BundleContext; |
| |
| /** |
| * The main plugin class to be used in the desktop. |
| */ |
| public class J2EENavigatorPlugin extends AbstractUIPlugin { |
| //The shared instance. |
| private static J2EENavigatorPlugin plugin; |
| public static final String PLUGIN_ID = "org.eclipse.jst.j2ee.navigator.ui"; //$NON-NLS-1$ |
| private static final String ICONS = "icons/"; //$NON-NLS-1$ |
| |
| private ImageRegistry images; |
| |
| |
| /** |
| * The constructor. |
| */ |
| public J2EENavigatorPlugin() { |
| super(); |
| plugin = this; |
| } |
| |
| /** |
| * Returns the shared instance. |
| */ |
| public static J2EENavigatorPlugin getDefault() { |
| return plugin; |
| } |
| |
| /** |
| * Returns the workspace instance. |
| */ |
| public static IWorkspace getWorkspace() { |
| return ResourcesPlugin.getWorkspace(); |
| } |
| |
| public void start(BundleContext context) throws Exception { |
| super.start(context); |
| images = new ImageRegistry(Display.getDefault()); |
| } |
| |
| public ImageDescriptor getImageDescriptor(String relativePath) { |
| ImageDescriptor descriptor = images.getDescriptor(relativePath); |
| if(descriptor == null) { |
| synchronized (this) { |
| descriptor = images.getDescriptor(relativePath); |
| if(descriptor == null) { |
| URL imageUrl = FileLocator.find(getBundle(), new Path(ICONS+relativePath), Collections.EMPTY_MAP); |
| descriptor = ImageDescriptor.createFromURL(imageUrl); |
| } |
| } |
| } |
| return descriptor; |
| } |
| |
| |
| public Image getImage(ImageDescriptor descriptor) { |
| |
| Image image = images.get(descriptor.toString()); |
| if(image == null) { |
| synchronized (this) { |
| image = images.get(descriptor.toString()); |
| if(image == null) { |
| images.put(descriptor.toString(), (image = descriptor.createImage(true))); |
| } |
| } |
| } |
| return image; |
| } |
| |
| public void stop(BundleContext context) throws Exception { |
| super.stop(context); |
| images.dispose(); |
| } |
| |
| |
| /** |
| * Record an error against this plugin's log. |
| * |
| * @param aCode |
| * @param aMessage |
| * @param anException |
| */ |
| public static void logError(int aCode, String aMessage, |
| Throwable anException) { |
| getDefault().getLog().log( |
| createErrorStatus(aCode, aMessage, anException)); |
| } |
| |
| /** |
| * |
| * Record a message against this plugin's log. |
| * |
| * @param severity |
| * @param aCode |
| * @param aMessage |
| * @param exception |
| */ |
| public static void log(int severity, int aCode, String aMessage, |
| Throwable exception) { |
| log(createStatus(severity, aCode, aMessage, exception)); |
| } |
| |
| /** |
| * |
| * Record a status against this plugin's log. |
| * |
| * @param aStatus |
| */ |
| public static void log(IStatus aStatus) { |
| getDefault().getLog().log(aStatus); |
| } |
| |
| /** |
| * Create a status associated with this plugin. |
| * |
| * @param severity |
| * @param aCode |
| * @param aMessage |
| * @param exception |
| * @return A status configured with this plugin's id and the given parameters. |
| */ |
| public static IStatus createStatus(int severity, int aCode, |
| String aMessage, Throwable exception) { |
| return new Status(severity, PLUGIN_ID, aCode, |
| aMessage != null ? aMessage : "No message.", exception); //$NON-NLS-1$ |
| } |
| |
| /** |
| * |
| * @param aCode |
| * @param aMessage |
| * @param exception |
| * @return A status configured with this plugin's id and the given parameters. |
| */ |
| public static IStatus createErrorStatus(int aCode, String aMessage, |
| Throwable exception) { |
| return createStatus(IStatus.ERROR, aCode, aMessage, exception); |
| } |
| } |