| /* |
| * 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.karaf.shell.dev; |
| |
| import java.util.HashMap; |
| import java.util.LinkedHashSet; |
| import java.util.Map; |
| import java.util.Set; |
| |
| import org.apache.felix.gogo.commands.Argument; |
| import org.apache.karaf.shell.console.OsgiCommandSupport; |
| import org.osgi.framework.Bundle; |
| import org.osgi.framework.ServiceReference; |
| import org.osgi.service.packageadmin.ExportedPackage; |
| import org.osgi.service.packageadmin.PackageAdmin; |
| |
| /** |
| * Base class for a dev: command that takes a bundle id as an argument |
| * |
| * It also provides convient access to the PackageAdmin service |
| */ |
| public abstract class AbstractBundleCommand extends OsgiCommandSupport { |
| |
| @Argument(index = 0, name = "id", description = "The bundle ID", required = true) |
| Long id; |
| |
| private PackageAdmin admin; |
| |
| @Override |
| protected Object doExecute() throws Exception { |
| // Get package admin service. |
| ServiceReference ref = getBundleContext().getServiceReference(PackageAdmin.class.getName()); |
| if (ref == null) { |
| System.out.println("PackageAdmin service is unavailable."); |
| return null; |
| } |
| |
| // using the getService call ensures that the reference will be released at the end |
| admin = getService(PackageAdmin.class, ref); |
| |
| Bundle bundle = getBundleContext().getBundle(id); |
| if (bundle == null) { |
| System.err.println("Bundle ID " + id + " is invalid"); |
| return null; |
| } |
| |
| doExecute(bundle); |
| |
| return null; |
| } |
| |
| protected abstract void doExecute(Bundle bundle) throws Exception; |
| |
| /* |
| * Get the list of bundles from which the given bundle imports packages |
| */ |
| protected Map<String, Bundle> getWiredBundles(Bundle bundle) { |
| // the set of bundles from which the bundle imports packages |
| Map<String, Bundle> exporters = new HashMap<String, Bundle>(); |
| |
| for (ExportedPackage pkg : getPackageAdmin().getExportedPackages((Bundle) null)) { |
| Bundle[] bundles = pkg.getImportingBundles(); |
| if (bundles != null) { |
| for (Bundle importingBundle : bundles) { |
| if (bundle.equals(importingBundle) |
| && !(pkg.getExportingBundle().getBundleId() == 0) |
| && !(pkg.getExportingBundle().equals(bundle))) { |
| exporters.put(pkg.getName(), pkg.getExportingBundle()); |
| } |
| } |
| } |
| } |
| return exporters; |
| } |
| |
| protected PackageAdmin getPackageAdmin() { |
| return admin; |
| } |
| } |