rdt/org.eclipse.ptp.rdt.sync.git.ui/src/org/eclipse/ptp/internal/rdt/sync/git/ui/Activator.java

/*******************************************************************************
 * Copyright (c) 2011 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.ptp.internal.rdt.sync.git.ui;

import org.eclipse.core.runtime.IStatus;
import org.eclipse.core.runtime.Status;
import org.eclipse.ui.plugin.AbstractUIPlugin;
import org.osgi.framework.BundleContext;
import org.osgi.framework.ServiceReference;

/**
 * The activator class controls the plug-in life cycle
 */
public class Activator extends AbstractUIPlugin {

	/**
	 * The plug-in ID
	 */
	public static final String PLUGIN_ID = "org.eclipse.ptp.internal.rdt.sync.git.ui"; //$NON-NLS-1$

	// The shared instance
	private static Activator plugin;

	/**
	 * The constructor
	 */
	public Activator() {
	}

	/*
	 * (non-Javadoc)
	 * 
	 * @see org.eclipse.ui.plugin.AbstractUIPlugin#start(org.osgi.framework.BundleContext)
	 */
	@Override
	public void start(BundleContext context) throws Exception {
		super.start(context);
		plugin = this;
	}

	/*
	 * (non-Javadoc)
	 * 
	 * @see org.eclipse.ui.plugin.AbstractUIPlugin#stop(org.osgi.framework.BundleContext)
	 */
	@Override
	public void stop(BundleContext context) throws Exception {
		plugin = null;
		super.stop(context);
	}

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

	public static void log(Throwable e) {
		log("Error", e); //$NON-NLS-1$
	}

	public static void log(String message, Throwable e) {
		log(new Status(IStatus.ERROR, PLUGIN_ID, IStatus.ERROR, message, e));
	}

	public static void log(IStatus status) {
		getDefault().getLog().log(status);
	}

	public static void log(String message) {
		log(new Status(IStatus.ERROR, PLUGIN_ID, IStatus.ERROR, message, null));
	}

	/**
	 * Return the OSGi service with the given service interface.
	 *
	 * @param service
	 *            service interface
	 * @return the specified service or null if it's not registered
	 */
	public static <T> T getService(Class<T> service) {
		final BundleContext context = plugin.getBundle().getBundleContext();
		final ServiceReference<T> ref = context.getServiceReference(service);
		return ref != null ? context.getService(ref) : null;
	}

}