bundles/org.eclipse.emf.ecp.ui.e4/src/org/eclipse/emf/ecp/ui/internal/e4/Activator.java

/*******************************************************************************
 * Copyright (c) 2008-2011 Chair for Applied Software Engineering,
 * Technische Universitaet Muenchen.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License 2.0
 * which accompanies this distribution, and is available at
 * https://www.eclipse.org/legal/epl-2.0/
 *
 * SPDX-License-Identifier: EPL-2.0
 *
 * Contributors:
 * Edgar Mueller - initial API and implementation
 ******************************************************************************/
package org.eclipse.emf.ecp.ui.internal.e4;

import org.eclipse.emfforms.spi.common.report.ReportService;
import org.osgi.framework.BundleActivator;
import org.osgi.framework.BundleContext;
import org.osgi.framework.ServiceReference;

/**
 * The activator class controls the plug-in life cycle.
 */
public class Activator implements BundleActivator {

	private static ServiceReference<ReportService> reportServiceReference;
	private static BundleContext context;

	/**
	 * Returns the {@link BundleContext}.
	 *
	 * @return the {@link BundleContext}.
	 */
	public static BundleContext getContext() {
		return context;
	}

	/*
	 * (non-Javadoc)
	 * @see org.osgi.framework.BundleActivator#start(org.osgi.framework.BundleContext)
	 */
	@Override
	public void start(BundleContext bundleContext) throws Exception {
		Activator.context = bundleContext;
	}

	/*
	 * (non-Javadoc)
	 * @see org.osgi.framework.BundleActivator#stop(org.osgi.framework.BundleContext)
	 */
	@Override
	public void stop(BundleContext bundleContext) throws Exception {
		Activator.context = null;
	}

	/**
	 * Returns the {@link ReportService}.
	 *
	 * @return the {@link ReportService}
	 */
	public static ReportService getReportService() {
		if (reportServiceReference == null) {
			reportServiceReference = context.getServiceReference(ReportService.class);
		}
		return context.getService(reportServiceReference);
	}
}