A. J. David Bosschaert | 8b3069d | 2014-02-04 14:13:44 +0000 | [diff] [blame] | 1 | /* |
| 2 | * Licensed to the Apache Software Foundation (ASF) under one |
| 3 | * or more contributor license agreements. See the NOTICE file |
| 4 | * distributed with this work for additional information |
| 5 | * regarding copyright ownership. The ASF licenses this file |
| 6 | * to you under the Apache License, Version 2.0 (the |
| 7 | * "License"); you may not use this file except in compliance |
| 8 | * with the License. You may obtain a copy of the License at |
| 9 | * |
| 10 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 11 | * |
| 12 | * Unless required by applicable law or agreed to in writing, |
| 13 | * software distributed under the License is distributed on an |
| 14 | * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| 15 | * KIND, either express or implied. See the License for the |
| 16 | * specific language governing permissions and limitations |
| 17 | * under the License. |
| 18 | */ |
| 19 | package org.apache.felix.bundlerepository.osgict; |
| 20 | |
| 21 | import java.io.File; |
| 22 | import java.io.FileOutputStream; |
| 23 | import java.io.IOException; |
| 24 | import java.util.Dictionary; |
| 25 | import java.util.Hashtable; |
| 26 | |
| 27 | import org.apache.felix.bundlerepository.RepositoryAdmin; |
| 28 | import org.osgi.framework.BundleActivator; |
| 29 | import org.osgi.framework.BundleContext; |
| 30 | import org.osgi.framework.Filter; |
| 31 | import org.osgi.framework.ServiceReference; |
| 32 | import org.osgi.util.tracker.ServiceTracker; |
| 33 | |
| 34 | /** |
| 35 | * This Activator implements the required glue between an OSGi Repository implementation and the |
| 36 | * OSGi CT. It is needed to prime the repository with the data needed by the CT and works as |
| 37 | * follows: |
| 38 | * <ul> |
| 39 | * <li>The CT registers a String service with as property {@code repository-xml}. This service is |
| 40 | * literally the repository XML needed by the test, and must be fed to the repository implementation. |
| 41 | * <li>When that's done this glue code registers another service with as property |
| 42 | * {@code repository-populated} to signal to the CT that the priming is done. |
| 43 | * </ul> |
| 44 | */ |
| 45 | public class Activator implements BundleActivator |
| 46 | { |
| 47 | private BundleContext bundleContext; |
| 48 | private ServiceTracker<String, String> repoXMLTracker; |
| 49 | private ServiceTracker<RepositoryAdmin, RepositoryAdmin> repoTracker; |
| 50 | |
| 51 | public void start(BundleContext context) throws Exception |
| 52 | { |
| 53 | bundleContext = context; |
| 54 | Filter f = context.createFilter("(&(objectClass=java.lang.String)(repository-xml=*))"); |
| 55 | repoXMLTracker = new ServiceTracker<String, String>(context, f, null) { |
| 56 | @Override |
| 57 | public String addingService(ServiceReference<String> reference) |
| 58 | { |
| 59 | try |
| 60 | { |
| 61 | String xml = super.addingService(reference); |
| 62 | handleRepositoryXML(reference, xml); |
| 63 | return xml; |
| 64 | } |
| 65 | catch (Exception e) |
| 66 | { |
| 67 | throw new RuntimeException(e); |
| 68 | } |
| 69 | } |
| 70 | }; |
| 71 | repoXMLTracker.open(); |
| 72 | } |
| 73 | |
| 74 | public void stop(BundleContext context) throws Exception |
| 75 | { |
| 76 | repoXMLTracker.close(); |
| 77 | if (repoTracker != null) |
| 78 | repoTracker.close(); |
| 79 | } |
| 80 | |
| 81 | private void handleRepositoryXML(ServiceReference<String> reference, String xml) throws Exception |
| 82 | { |
| 83 | File tempXMLFile = bundleContext.getDataFile("repo-" + reference.getProperty("repository-xml") + ".xml"); |
| 84 | writeXMLToFile(tempXMLFile, xml); |
| 85 | |
| 86 | repoTracker = new ServiceTracker<RepositoryAdmin, RepositoryAdmin>(bundleContext, RepositoryAdmin.class, null); |
| 87 | repoTracker.open(); |
| 88 | RepositoryAdmin repo = repoTracker.waitForService(30000); |
| 89 | repo.addRepository(tempXMLFile.toURI().toURL()); |
| 90 | tempXMLFile.delete(); |
| 91 | |
| 92 | Dictionary<String, Object> props = new Hashtable<String, Object>(); |
| 93 | props.put("repository-populated", reference.getProperty("repository-xml")); |
| 94 | bundleContext.registerService(String.class, "", props); |
| 95 | } |
| 96 | |
| 97 | private void writeXMLToFile(File tempXMLFile, String xml) throws IOException |
| 98 | { |
| 99 | FileOutputStream fos = new FileOutputStream(tempXMLFile); |
| 100 | try |
| 101 | { |
| 102 | fos.write(xml.getBytes()); |
| 103 | } |
| 104 | finally |
| 105 | { |
| 106 | fos.close(); |
| 107 | } |
| 108 | } |
| 109 | } |