| /* |
| * 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 WARRANTIESOR 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.aries.jpa.container.impl; |
| |
| import java.util.Dictionary; |
| import java.util.Hashtable; |
| |
| import org.apache.aries.jpa.container.weaving.impl.TransformerRegistry; |
| import org.apache.aries.jpa.container.weaving.impl.TransformerRegistrySingleton; |
| import org.osgi.framework.Bundle; |
| import org.osgi.framework.BundleActivator; |
| import org.osgi.framework.BundleContext; |
| import org.osgi.framework.Constants; |
| import org.osgi.framework.hooks.weaving.WeavingHook; |
| import org.osgi.framework.wiring.BundleWiring; |
| import org.osgi.util.tracker.BundleTracker; |
| |
| public class Activator implements BundleActivator { |
| |
| private BundleTracker<Bundle> persistenceBundleManager; |
| |
| @Override |
| public void start(BundleContext context) throws Exception { |
| registerWeavingHook(context, TransformerRegistrySingleton.get()); |
| |
| PersistenceBundleTracker customizer = new PersistenceBundleTracker(context.getBundle().adapt(BundleWiring.class)); |
| persistenceBundleManager = new BundleTracker<Bundle>(context, Bundle.STARTING | Bundle.ACTIVE, customizer); |
| persistenceBundleManager.open(); |
| } |
| |
| /** |
| * ARIES-1019: Register with the highest possible service ranking to |
| * avoid ClassNotFoundException caused by interfaces added by earlier |
| * weaving hooks that are not yet visible to the bundle class loader. |
| */ |
| private void registerWeavingHook(BundleContext context, TransformerRegistry tr) { |
| Dictionary<String, Object> props = new Hashtable<String, Object>(1); // NOSONAR |
| props.put(Constants.SERVICE_RANKING, Integer.MAX_VALUE); |
| context.registerService(WeavingHook.class.getName(), tr, props); |
| } |
| |
| @Override |
| public void stop(BundleContext context) throws Exception { |
| persistenceBundleManager.close(); |
| } |
| |
| } |