Pierre De Rop | 3a00a21 | 2015-03-01 09:27:46 +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.dm.impl; |
| 20 | |
| 21 | import java.util.Enumeration; |
| 22 | import java.util.Hashtable; |
| 23 | import java.util.List; |
| 24 | |
| 25 | import org.apache.felix.dm.Component; |
| 26 | import org.apache.felix.dm.ComponentStateListener; |
| 27 | import org.apache.felix.dm.Dependency; |
| 28 | import org.apache.felix.dm.DependencyManager; |
| 29 | import org.apache.felix.dm.context.DependencyContext; |
| 30 | import org.osgi.framework.Bundle; |
| 31 | |
| 32 | /** |
| 33 | * Bundle Adapter Service implementation. This class extends the FilterService in order to catch |
| 34 | * some Service methods for configuring actual adapter service implementation. |
| 35 | * |
| 36 | * @author <a href="mailto:dev@felix.apache.org">Felix Project Team</a> |
| 37 | */ |
| 38 | public class BundleAdapterImpl extends FilterComponent |
| 39 | { |
Pierre De Rop | c40d93f | 2015-05-04 20:25:57 +0000 | [diff] [blame] | 40 | /** |
Pierre De Rop | 3a00a21 | 2015-03-01 09:27:46 +0000 | [diff] [blame] | 41 | * Creates a new Bundle Adapter Service implementation. |
| 42 | */ |
| 43 | public BundleAdapterImpl(DependencyManager dm, int bundleStateMask, String bundleFilter, boolean propagate) |
| 44 | { |
Pierre De Rop | c40d93f | 2015-05-04 20:25:57 +0000 | [diff] [blame] | 45 | this(dm, bundleStateMask, bundleFilter, propagate, null, null, null, null); |
Pierre De Rop | 3a00a21 | 2015-03-01 09:27:46 +0000 | [diff] [blame] | 46 | } |
| 47 | |
Pierre De Rop | c40d93f | 2015-05-04 20:25:57 +0000 | [diff] [blame] | 48 | public BundleAdapterImpl(DependencyManager dm, int stateMask, String filter, boolean propagate, Object cbInstance, String add, String change, String remove) { |
| 49 | super(dm.createComponent()); // This service will be filtered by our super class, allowing us to take control. |
| 50 | m_component |
| 51 | .setImplementation(new BundleAdapterDecorator(stateMask, propagate, cbInstance, add, change, remove)) |
| 52 | .add(dm.createBundleDependency() |
| 53 | .setFilter(filter) |
| 54 | .setStateMask(stateMask) |
| 55 | .setCallbacks("added", "removed")) |
| 56 | .setCallbacks("init", null, "stop", null); |
| 57 | } |
| 58 | |
| 59 | public class BundleAdapterDecorator extends AbstractDecorator { |
Pierre De Rop | 3a00a21 | 2015-03-01 09:27:46 +0000 | [diff] [blame] | 60 | private final boolean m_propagate; |
| 61 | private final int m_bundleStateMask; |
Pierre De Rop | c40d93f | 2015-05-04 20:25:57 +0000 | [diff] [blame] | 62 | public final Object m_cbInstance; |
| 63 | public final String m_add; |
| 64 | public final String m_change; |
| 65 | public final String m_remove; |
Pierre De Rop | 3a00a21 | 2015-03-01 09:27:46 +0000 | [diff] [blame] | 66 | |
| 67 | public BundleAdapterDecorator(int bundleStateMask, boolean propagate) { |
Pierre De Rop | c40d93f | 2015-05-04 20:25:57 +0000 | [diff] [blame] | 68 | this(bundleStateMask, propagate, null, null, null, null); |
Pierre De Rop | 3a00a21 | 2015-03-01 09:27:46 +0000 | [diff] [blame] | 69 | } |
| 70 | |
Pierre De Rop | c40d93f | 2015-05-04 20:25:57 +0000 | [diff] [blame] | 71 | public BundleAdapterDecorator(int bundleStateMask, boolean propagate, Object callbackInstance, String add, String change, String remove) { |
| 72 | m_bundleStateMask = bundleStateMask; |
| 73 | m_propagate = propagate; |
| 74 | m_cbInstance = callbackInstance; |
| 75 | m_add = add; |
| 76 | m_change = change; |
| 77 | m_remove = remove; |
| 78 | } |
| 79 | |
| 80 | public Component createService(Object[] properties) { |
Pierre De Rop | 3a00a21 | 2015-03-01 09:27:46 +0000 | [diff] [blame] | 81 | Bundle bundle = (Bundle) properties[0]; |
| 82 | Hashtable<String, Object> props = new Hashtable<>(); |
| 83 | if (m_serviceProperties != null) { |
| 84 | Enumeration<String> e = m_serviceProperties.keys(); |
| 85 | while (e.hasMoreElements()) { |
| 86 | String key = e.nextElement(); |
| 87 | props.put(key, m_serviceProperties.get(key)); |
| 88 | } |
| 89 | } |
| 90 | List<DependencyContext> dependencies = m_component.getDependencies(); |
| 91 | // the first dependency is always the dependency on the bundle, which |
| 92 | // will be replaced with a more specific dependency below |
| 93 | dependencies.remove(0); |
| 94 | Component service = m_manager.createComponent() |
| 95 | .setInterface(m_serviceInterfaces, props) |
| 96 | .setImplementation(m_serviceImpl) |
| 97 | .setFactory(m_factory, m_factoryCreateMethod) // if not set, no effect |
| 98 | .setComposition(m_compositionInstance, m_compositionMethod) // if not set, no effect |
| 99 | .setCallbacks(m_callbackObject, m_init, m_start, m_stop, m_destroy) // if not set, no effect |
| 100 | .add(m_manager.createBundleDependency() |
| 101 | .setBundle(bundle) |
| 102 | .setStateMask(m_bundleStateMask) |
| 103 | .setPropagate(m_propagate) |
Pierre De Rop | c40d93f | 2015-05-04 20:25:57 +0000 | [diff] [blame] | 104 | .setCallbacks(m_cbInstance, m_add, m_change, m_remove) |
Pierre De Rop | 3a00a21 | 2015-03-01 09:27:46 +0000 | [diff] [blame] | 105 | .setAutoConfig(true) |
| 106 | .setRequired(true)); |
| 107 | |
| 108 | for (DependencyContext dc : dependencies) { |
| 109 | service.add((Dependency) dc.createCopy()); |
| 110 | } |
| 111 | |
| 112 | for (ComponentStateListener stateListener : m_stateListeners) { |
| 113 | service.add(stateListener); |
| 114 | } |
| 115 | configureAutoConfigState(service, m_component); |
| 116 | return service; |
| 117 | } |
| 118 | } |
| 119 | } |