| /* |
| * 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 java.util.Enumeration; |
| import java.util.List; |
| import java.util.Properties; |
| |
| import org.apache.felix.dm.Dependency; |
| import org.apache.felix.dm.DependencyManager; |
| import org.apache.felix.dm.Component; |
| import org.apache.felix.dm.ComponentStateListener; |
| import org.osgi.framework.Bundle; |
| |
| /** |
| * Bundle Adapter Service implementation. This class extends the FilterService in order to catch |
| * some Service methods for configuring actual adapter service implementation. |
| */ |
| public class BundleAdapterServiceImpl extends FilterService |
| { |
| /** |
| * Creates a new Bundle Adapter Service implementation. |
| */ |
| public BundleAdapterServiceImpl(DependencyManager dm, int bundleStateMask, String bundleFilter, boolean propagate) |
| { |
| super(dm.createComponent()); // This service will be filtered by our super class, allowing us to take control. |
| m_service.setImplementation(new BundleAdapterImpl(bundleStateMask, bundleFilter, propagate)) |
| .add(dm.createBundleDependency() |
| .setFilter(bundleFilter) |
| .setStateMask(bundleStateMask) |
| .setCallbacks("added", "removed")); |
| } |
| |
| public class BundleAdapterImpl extends AbstractDecorator { |
| private final boolean m_propagate; |
| private final int m_bundleStateMask; |
| private final String m_bundleFilter; |
| |
| public BundleAdapterImpl(int bundleStateMask, String bundleFilter, boolean propagate) { |
| m_bundleStateMask = bundleStateMask; |
| m_bundleFilter = bundleFilter; |
| m_propagate = propagate; |
| } |
| |
| public Component createService(Object[] properties) { |
| Bundle bundle = (Bundle) properties[0]; |
| Properties props = new Properties(); |
| if (m_serviceProperties != null) { |
| Enumeration e = m_serviceProperties.keys(); |
| while (e.hasMoreElements()) { |
| Object key = e.nextElement(); |
| props.put(key, m_serviceProperties.get(key)); |
| } |
| } |
| List dependencies = m_service.getDependencies(); |
| // the first dependency is always the dependency on the bundle, which |
| // will be replaced with a more specific dependency below |
| dependencies.remove(0); |
| Component service = m_manager.createComponent() |
| .setInterface(m_serviceInterfaces, props) |
| .setImplementation(m_serviceImpl) |
| .setFactory(m_factory, m_factoryCreateMethod) // if not set, no effect |
| .setComposition(m_compositionInstance, m_compositionMethod) // if not set, no effect |
| .setCallbacks(m_callbackObject, m_init, m_start, m_stop, m_destroy) // if not set, no effect |
| .add(m_manager.createBundleDependency() |
| .setBundle(bundle) |
| .setStateMask(m_bundleStateMask) |
| .setPropagate(m_propagate) |
| .setCallbacks(null, "changed", null) |
| .setAutoConfig(true) |
| .setRequired(true)); |
| |
| for (int i = 0; i < dependencies.size(); i++) { |
| service.add(((Dependency) dependencies.get(i)).createCopy()); |
| } |
| |
| for (int i = 0; i < m_stateListeners.size(); i ++) { |
| service.addStateListener((ComponentStateListener) m_stateListeners.get(i)); |
| } |
| return service; |
| } |
| } |
| } |