| /* |
| * 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.packages; |
| |
| import java.io.PrintStream; |
| import java.util.ArrayList; |
| import java.util.HashMap; |
| import java.util.List; |
| import java.util.Map; |
| |
| import org.osgi.framework.Bundle; |
| import org.osgi.framework.Constants; |
| import org.osgi.service.packageadmin.ExportedPackage; |
| import org.osgi.service.packageadmin.PackageAdmin; |
| import org.apache.felix.gogo.commands.Argument; |
| import org.apache.felix.gogo.commands.Command; |
| import org.apache.felix.gogo.commands.Option; |
| |
| @Command(scope = "packages", name = "imports", description = "Displays imported packages.") |
| public class ImportsCommand extends PackageCommandSupport { |
| |
| @Argument(index = 0, name = "ids", description = "The IDs of bundles to check", required = false, multiValued = true) |
| List<Long> ids; |
| |
| @Option(name = "-i", aliases = { "--show-importer" }, description = "show the bundle that is importing a package", required = false, multiValued = false) |
| private boolean showImporter; |
| |
| protected void doExecute(PackageAdmin admin) throws Exception { |
| Map<Long, List<ExportedPackage>> packages = new HashMap<Long, List<ExportedPackage>>(); |
| ExportedPackage[] exported = admin.getExportedPackages((Bundle) null); |
| for (ExportedPackage pkg : exported) { |
| Bundle[] bundles = pkg.getImportingBundles(); |
| if (bundles != null) { |
| for (Bundle b : bundles) { |
| List<ExportedPackage> p = packages.get(b.getBundleId()); |
| if (p == null) { |
| p = new ArrayList<ExportedPackage>(); |
| packages.put(b.getBundleId(), p); |
| } |
| p.add(pkg); |
| } |
| } |
| } |
| if (ids != null && !ids.isEmpty()) { |
| for (long id : ids) { |
| Bundle bundle = getBundleContext().getBundle(id); |
| if (bundle != null) { |
| printImports(System.out, bundle, packages.get(bundle.getBundleId())); |
| } else { |
| System.err.println("Bundle ID " + id + " is invalid."); |
| } |
| } |
| } |
| else { |
| if (showImporter) { |
| printImports(System.out, packages); |
| } else { |
| List<ExportedPackage> pkgs = new ArrayList<ExportedPackage>(); |
| for (List<ExportedPackage> l : packages.values()) { |
| pkgs.addAll(l); |
| } |
| printImports(System.out, null, pkgs); |
| } |
| } |
| } |
| |
| protected void printImports(PrintStream out, Map<Long, List<ExportedPackage>> imports) { |
| for (Map.Entry<Long, List<ExportedPackage>> entry : imports.entrySet()) { |
| for (ExportedPackage p : entry.getValue()) { |
| // print bundle that is importing this package |
| Bundle importer = getBundleContext().getBundle(entry.getKey()); |
| out.print(getBundleName(importer)); |
| out.print(" imports: "); |
| |
| // print bundle that is exporting this package |
| Bundle exporter = p.getExportingBundle(); |
| out.print(getBundleName(exporter)); |
| |
| // print the package |
| out.println(": " + p); |
| } |
| } |
| } |
| |
| protected void printImports(PrintStream out, Bundle target, List<ExportedPackage> imports) { |
| if ((imports != null) && (imports.size() > 0)) { |
| for (ExportedPackage p : imports) { |
| Bundle bundle = p.getExportingBundle(); |
| out.print(getBundleName(bundle)); |
| out.println(": " + p); |
| } |
| } else { |
| out.println(getBundleName(target) + ": No active imported packages."); |
| } |
| } |
| |
| public static String getBundleName(Bundle bundle) { |
| if (bundle != null) { |
| String name = (String) bundle.getHeaders().get(Constants.BUNDLE_NAME); |
| return (name == null) |
| ? "Bundle " + Long.toString(bundle.getBundleId()) |
| : name + " (" + Long.toString(bundle.getBundleId()) + ")"; |
| } |
| return "[STALE BUNDLE]"; |
| } |
| |
| } |