| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| */ |
| package org.apache.sling.installer.factories.deploypck.impl; |
| |
| import java.util.Dictionary; |
| import java.util.Hashtable; |
| |
| import org.apache.sling.installer.api.tasks.InstallTaskFactory; |
| import org.apache.sling.installer.api.tasks.ResourceTransformer; |
| import org.osgi.framework.BundleActivator; |
| import org.osgi.framework.BundleContext; |
| import org.osgi.framework.Constants; |
| import org.osgi.framework.ServiceEvent; |
| import org.osgi.framework.ServiceListener; |
| import org.osgi.framework.ServiceReference; |
| import org.osgi.framework.ServiceRegistration; |
| import org.osgi.service.deploymentadmin.DeploymentAdmin; |
| |
| public class Activator implements ServiceListener, BundleActivator { |
| |
| private static final String DEPLOYMENT_ADMIN = "org.osgi.service.deploymentadmin.DeploymentAdmin"; |
| |
| /** The bundle context. */ |
| private BundleContext bundleContext; |
| |
| /** The service reference to the deployment admin. */ |
| private ServiceReference deploymentAdminReference; |
| |
| /** The service registration for the install service. */ |
| private ServiceRegistration serviceReg; |
| |
| /** |
| * @see org.osgi.framework.BundleActivator#start(org.osgi.framework.BundleContext) |
| */ |
| public void start(final BundleContext context) throws Exception { |
| this.bundleContext = context; |
| this.getAdmin(); |
| this.bundleContext.addServiceListener(this, "(" + Constants.OBJECTCLASS |
| + "=" + DEPLOYMENT_ADMIN + ")"); |
| |
| } |
| /** |
| * @see org.osgi.framework.BundleActivator#stop(org.osgi.framework.BundleContext) |
| */ |
| public void stop(final BundleContext context) throws Exception { |
| this.bundleContext.removeServiceListener(this); |
| this.unregister(); |
| this.bundleContext = null; |
| } |
| |
| private void getAdmin() { |
| this.deploymentAdminReference = this.bundleContext.getServiceReference(DEPLOYMENT_ADMIN); |
| if ( this.deploymentAdminReference != null ) { |
| final DeploymentAdmin deploymentAdmin = (DeploymentAdmin) this.bundleContext.getService(this.deploymentAdminReference); |
| if ( deploymentAdmin == null ) { |
| this.deploymentAdminReference = null; |
| } else { |
| final Dictionary<String, Object> props = new Hashtable<String, Object>(); |
| props.put(Constants.SERVICE_DESCRIPTION, "Apache Sling Installer Support for Deployment Packages"); |
| props.put(Constants.SERVICE_VENDOR, "The Apache Software Foundation"); |
| this.serviceReg = this.bundleContext.registerService(new String[] {ResourceTransformer.class.getName(), |
| InstallTaskFactory.class.getName()}, |
| new DeploymentPackageInstaller(deploymentAdmin), props); |
| } |
| } |
| } |
| |
| /** |
| * Wait for the deployment admin service. |
| * @see org.osgi.framework.ServiceListener#serviceChanged(org.osgi.framework.ServiceEvent) |
| */ |
| public synchronized void serviceChanged(final ServiceEvent event) { |
| if ( event.getType() == ServiceEvent.REGISTERED && this.deploymentAdminReference == null ) { |
| this.getAdmin(); |
| } else if ( event.getType() == ServiceEvent.UNREGISTERING && this.deploymentAdminReference != null ) { |
| this.unregister(); |
| } |
| } |
| |
| private void unregister() { |
| if ( this.deploymentAdminReference != null ) { |
| this.bundleContext.ungetService(this.deploymentAdminReference); |
| this.deploymentAdminReference = null; |
| } |
| if ( serviceReg != null ) { |
| serviceReg.unregister(); |
| serviceReg = null; |
| } |
| } |
| } |