| /* |
| * 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.felix.dm.impl; |
| |
| import org.apache.felix.dm.ComponentExecutorFactory; |
| import org.apache.felix.dm.FilterIndex; |
| import org.apache.felix.dm.impl.index.ServiceRegistryCacheManager; |
| import org.osgi.framework.BundleActivator; |
| import org.osgi.framework.BundleContext; |
| import org.osgi.framework.Filter; |
| import org.osgi.framework.ServiceReference; |
| import org.osgi.util.tracker.ServiceTracker; |
| import org.osgi.util.tracker.ServiceTrackerCustomizer; |
| |
| /** |
| * DependencyManager Activator used to track a ComponentExecutorFactory service |
| * optionally registered by a management agent bundle. |
| * |
| * @see {@link ComponentExecutorFactory} |
| * @author <a href="mailto:dev@felix.apache.org">Felix Project Team</a> |
| */ |
| public class Activator implements BundleActivator { |
| private BundleContext m_context; |
| private ServiceTracker<ComponentExecutorFactory, ComponentExecutorFactory> m_execTracker; |
| private ServiceTracker<FilterIndex, FilterIndex> m_indexTracker; |
| |
| @Override |
| public void start(BundleContext context) throws Exception { |
| // make sure the backdoor is set in system properties (needed by tests) |
| ServiceRegistryCacheManager.init(); |
| |
| m_context = context; |
| Filter execFilter = context.createFilter("(objectClass=" + ComponentExecutorFactory.class.getName() + ")"); |
| m_execTracker = new ServiceTracker<>(context, execFilter, new ExecutorFactoryCustomizer()); |
| m_execTracker.open(); |
| |
| Filter indexFilter = context.createFilter("(objectClass=" + FilterIndex.class.getName() + ")"); |
| m_indexTracker = new ServiceTracker<>(context, indexFilter, new FilterIndexCustomizer()); |
| m_indexTracker.open(); |
| } |
| |
| @Override |
| public void stop(BundleContext context) throws Exception { |
| if (m_execTracker != null) { |
| m_execTracker.close(); |
| } |
| if (m_indexTracker != null) { |
| m_indexTracker.close(); |
| } |
| } |
| |
| private class ExecutorFactoryCustomizer implements ServiceTrackerCustomizer<ComponentExecutorFactory, ComponentExecutorFactory> { |
| @Override |
| public ComponentExecutorFactory addingService(ServiceReference<ComponentExecutorFactory> reference) { |
| ComponentExecutorFactory factory = (ComponentExecutorFactory) m_context.getService(reference); |
| ComponentScheduler.instance().bind(factory); |
| return factory; |
| } |
| |
| @Override |
| public void modifiedService(ServiceReference<ComponentExecutorFactory> reference, ComponentExecutorFactory service) { |
| } |
| |
| @Override |
| public void removedService(ServiceReference<ComponentExecutorFactory> reference, ComponentExecutorFactory factory) { |
| ComponentScheduler.instance().unbind(factory); |
| } |
| } |
| |
| private class FilterIndexCustomizer implements ServiceTrackerCustomizer<FilterIndex, FilterIndex> { |
| @Override |
| public FilterIndex addingService(ServiceReference<FilterIndex> reference) { |
| FilterIndex index = m_context.getService(reference); |
| ServiceRegistryCacheManager.registerFilterIndex(index, m_context); |
| return index; |
| } |
| |
| @Override |
| public void modifiedService(ServiceReference<FilterIndex> reference, FilterIndex service) { |
| } |
| |
| @Override |
| public void removedService(ServiceReference<FilterIndex> reference, FilterIndex index) { |
| ServiceRegistryCacheManager.unregisterFilterIndex(index); |
| } |
| } |
| } |