| /* |
| * 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.features.command; |
| |
| import java.util.Collection; |
| import java.util.List; |
| import java.util.Map; |
| import java.util.TreeSet; |
| |
| import org.apache.karaf.shell.api.action.Action; |
| import org.apache.karaf.shell.api.action.Argument; |
| import org.apache.karaf.shell.api.action.Command; |
| import org.apache.karaf.shell.api.action.Option; |
| import org.apache.karaf.shell.api.action.lifecycle.Reference; |
| import org.apache.karaf.shell.api.action.lifecycle.Service; |
| import org.eclipse.equinox.region.Region; |
| import org.eclipse.equinox.region.RegionDigraph; |
| import org.eclipse.equinox.region.RegionFilter; |
| import org.osgi.framework.Bundle; |
| import org.osgi.framework.BundleContext; |
| |
| @Command(scope = "feature", name = "regions", description = "Prints information about region digraph.") |
| @Service |
| public class RegionInfoCommand implements Action { |
| |
| @Option(name = "-v", aliases = "--verbose", required = false, description = "Show all info.") |
| boolean verbose; |
| |
| @Option(name = "-b", aliases = "--bundles", required = false, description = "Show bundles in each region.") |
| boolean bundles; |
| |
| @Option(name = "-f", aliases = "--filters", required = false, description = "Show filters.") |
| boolean filters; |
| |
| @Option(name = "-n", aliases = "--namespaces", required = false, description = "Show namespaces in each filter.") |
| boolean namespaces; |
| |
| @Argument(index = 0, name = "regions", description = "Regions to provide detailed info for.", required = false, multiValued = true) |
| List<String> regions; |
| |
| @Reference |
| RegionDigraph regionDigraph; |
| |
| @Reference |
| BundleContext bundleContext; |
| |
| public Object execute() throws Exception { |
| System.out.println("Regions"); |
| if (regions == null) { |
| for (Region region : regionDigraph.getRegions()) { |
| showRegion(region); |
| } |
| } else { |
| bundles = true; |
| filters = true; |
| namespaces = true; |
| for (String regionName : regions) { |
| Region region = regionDigraph.getRegion(regionName); |
| if (region == null) { |
| System.out.println("No region " + regionName); |
| } else { |
| showRegion(region); |
| } |
| } |
| } |
| return null; |
| } |
| |
| private void showRegion(Region region) { |
| BundleContext bundleContext = this.bundleContext.getBundle(0).getBundleContext(); |
| System.out.println(region.getName()); |
| if (verbose || bundles) { |
| for (Long id : new TreeSet<Long>(region.getBundleIds())) { |
| Bundle b = bundleContext.getBundle(id); |
| System.out.println(String.format(" %3d %s%s", id, getStateString(b), b)); |
| } |
| } |
| if (verbose || filters || namespaces) { |
| for (RegionDigraph.FilteredRegion f : region.getEdges()) { |
| System.out.println(" filter to " + f.getRegion().getName()); |
| if (verbose || namespaces) { |
| RegionFilter rf = f.getFilter(); |
| for (Map.Entry<String, Collection<String>> policy : rf.getSharingPolicy().entrySet()) { |
| String namespace = policy.getKey(); |
| System.out.println(" namespace: " + namespace); |
| for (String e : policy.getValue()) { |
| System.out.println(" " + e); |
| } |
| } |
| } |
| } |
| } |
| } |
| |
| public String getStateString(Bundle bundle) { |
| if (bundle == null) { |
| return "Bundle null "; |
| } |
| int state = bundle.getState(); |
| if (state == Bundle.ACTIVE) { |
| return "Active "; |
| } else if (state == Bundle.INSTALLED) { |
| return "Installed "; |
| } else if (state == Bundle.RESOLVED) { |
| return "Resolved "; |
| } else if (state == Bundle.STARTING) { |
| return "Starting "; |
| } else if (state == Bundle.STOPPING) { |
| return "Stopping "; |
| } else { |
| return "Unknown "; |
| } |
| } |
| |
| } |