| /******************************************************************************* |
| * Copyright (c) 2005, 2010 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.equinox.internal.event; |
| |
| import org.osgi.framework.*; |
| import org.osgi.service.event.EventAdmin; |
| |
| public class Activator implements BundleActivator { |
| private static final String PROP_USE_DS = "equinox.use.ds"; //$NON-NLS-1$ |
| private ServiceRegistration<EventAdmin> eventAdminService; |
| private EventComponent eventAdmin; |
| |
| public void start(BundleContext bundleContext) throws InvalidSyntaxException { |
| if (Boolean.valueOf(bundleContext.getProperty(PROP_USE_DS)).booleanValue()) |
| return; // If this property is set we assume DS is being used. |
| String serviceName = EventAdmin.class.getName(); |
| Filter serviceFilter = bundleContext.createFilter("(objectclass=" + serviceName + ")"); //$NON-NLS-1$ //$NON-NLS-2$ |
| //don't register the service if this bundle has already registered it declaratively |
| ServiceReference<?>[] refs = bundleContext.getBundle().getRegisteredServices(); |
| if (refs != null) { |
| for (int i = 0; i < refs.length; i++) |
| if (serviceFilter.match(refs[i])) |
| return; // We found a service registered by this bundle already |
| } |
| |
| eventAdmin = new EventComponent(); |
| eventAdmin.activate(bundleContext); |
| eventAdminService = bundleContext.registerService(EventAdmin.class, eventAdmin, null); |
| } |
| |
| public void stop(BundleContext bundleContext) { |
| if (eventAdmin != null) { |
| eventAdminService.unregister(); |
| eventAdmin.deactivate(bundleContext); |
| } |
| } |
| } |