| /******************************************************************************* |
| * Copyright (c) 2016 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.ds; |
| |
| import java.util.List; |
| import org.apache.felix.scr.ScrService; |
| import org.eclipse.osgi.service.environment.EnvironmentInfo; |
| import org.osgi.framework.*; |
| import org.osgi.framework.namespace.BundleNamespace; |
| import org.osgi.framework.startlevel.BundleStartLevel; |
| import org.osgi.framework.wiring.BundleWire; |
| import org.osgi.framework.wiring.BundleWiring; |
| import org.osgi.service.component.runtime.ServiceComponentRuntime; |
| import org.osgi.util.tracker.ServiceTracker; |
| import org.osgi.util.tracker.ServiceTrackerCustomizer; |
| |
| @SuppressWarnings("deprecation") |
| public class Activator implements BundleActivator, ServiceTrackerCustomizer<ServiceComponentRuntime, ServiceRegistration<ScrService>> { |
| |
| private BundleContext bc; |
| private Bundle scr; |
| private ServiceTracker<ServiceComponentRuntime, ServiceRegistration<ScrService>> tracker; |
| |
| public void start(BundleContext context) throws Exception { |
| this.bc = context; |
| ServiceReference<EnvironmentInfo> envInfoRef = context.getServiceReference(EnvironmentInfo.class); |
| EnvironmentInfo envInfo = null; |
| if (envInfoRef != null) { |
| envInfo = context.getService(envInfoRef); |
| } |
| if (envInfo != null) { |
| envInfo.setProperty("ds.delayed.keepInstances", "true"); //$NON-NLS-1$//$NON-NLS-2$ |
| envInfo.setProperty("equinox.use.ds", "true"); //$NON-NLS-1$//$NON-NLS-2$ |
| context.ungetService(envInfoRef); |
| } else { |
| System.setProperty("ds.delayed.keepInstances", "true"); //$NON-NLS-1$//$NON-NLS-2$ |
| System.setProperty("equinox.use.ds", "true"); //$NON-NLS-1$ //$NON-NLS-2$ |
| } |
| |
| BundleWiring wiring = context.getBundle().adapt(BundleWiring.class); |
| List<BundleWire> required = wiring.getRequiredWires(BundleNamespace.BUNDLE_NAMESPACE); |
| if (required.isEmpty()) { |
| throw new IllegalStateException("No org.apache.felix.scr bundle found!"); //$NON-NLS-1$ |
| } |
| scr = required.get(0).getProvider().getBundle(); |
| if (!"org.apache.felix.scr".equals(scr.getSymbolicName())) { //$NON-NLS-1$ |
| throw new IllegalStateException("Required wrong bundle: " + scr); //$NON-NLS-1$ |
| } |
| BundleStartLevel equinoxSDstartLevel = context.getBundle().adapt(BundleStartLevel.class); |
| BundleStartLevel scrStartLevel = scr.adapt(BundleStartLevel.class); |
| scrStartLevel.setStartLevel(equinoxSDstartLevel.getStartLevel()); |
| scr.start(Bundle.START_TRANSIENT); |
| tracker = new ServiceTracker<ServiceComponentRuntime, ServiceRegistration<ScrService>>(context, ServiceComponentRuntime.class, this); |
| tracker.open(); |
| } |
| |
| public void stop(BundleContext context) throws Exception { |
| tracker.close(); |
| scr.stop(Bundle.STOP_TRANSIENT); |
| } |
| |
| @Override |
| public ServiceRegistration<ScrService> addingService(ServiceReference<ServiceComponentRuntime> reference) { |
| ServiceComponentRuntime scrService = bc.getService(reference); |
| if (scr != null) { |
| return bc.registerService(ScrService.class, new ScrServiceImpl(scrService, bc), null); |
| } |
| return null; |
| } |
| |
| @Override |
| public void modifiedService(ServiceReference<ServiceComponentRuntime> reference, ServiceRegistration<ScrService> reg) { |
| // do nothing |
| } |
| |
| @Override |
| public void removedService(ServiceReference<ServiceComponentRuntime> reference, ServiceRegistration<ScrService> reg) { |
| reg.unregister(); |
| bc.ungetService(reference); |
| } |
| |
| } |