| /* |
| * 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; |
| |
| import java.util.ArrayList; |
| import java.util.Collections; |
| import java.util.List; |
| |
| import org.apache.felix.dm.impl.AdapterServiceImpl; |
| import org.apache.felix.dm.impl.AspectServiceImpl; |
| import org.apache.felix.dm.impl.BundleAdapterServiceImpl; |
| import org.apache.felix.dm.impl.FactoryConfigurationAdapterServiceImpl; |
| import org.apache.felix.dm.impl.Logger; |
| import org.apache.felix.dm.impl.ResourceAdapterServiceImpl; |
| import org.apache.felix.dm.impl.ServiceImpl; |
| import org.apache.felix.dm.impl.dependencies.BundleDependencyImpl; |
| import org.apache.felix.dm.impl.dependencies.ConfigurationDependencyImpl; |
| import org.apache.felix.dm.impl.dependencies.ResourceDependencyImpl; |
| import org.apache.felix.dm.impl.dependencies.ServiceDependencyImpl; |
| import org.apache.felix.dm.impl.dependencies.TemporalServiceDependencyImpl; |
| import org.apache.felix.dm.impl.metatype.PropertyMetaDataImpl; |
| import org.osgi.framework.BundleContext; |
| |
| /** |
| * The dependency manager manages all services and their dependencies. Using |
| * this API you can declare all services and their dependencies. Under normal |
| * circumstances, you get passed an instance of this class through the |
| * <code>DependencyActivatorBase</code> subclass you use as your |
| * <code>BundleActivator</code>, but it is also possible to create your |
| * own instance. |
| * |
| * @author <a href="mailto:dev@felix.apache.org">Felix Project Team</a> |
| */ |
| public class DependencyManager { |
| public static final String ASPECT = "org.apache.felix.dependencymanager.aspect"; |
| private final BundleContext m_context; |
| private final Logger m_logger; |
| private List m_services = Collections.synchronizedList(new ArrayList()); |
| |
| /** |
| * Creates a new dependency manager. You need to supply the |
| * <code>BundleContext</code> to be used by the dependency |
| * manager to register services and communicate with the |
| * framework. |
| * |
| * @param context the bundle context |
| */ |
| public DependencyManager(BundleContext context) { |
| this(context, new Logger(context)); |
| } |
| |
| DependencyManager(BundleContext context, Logger logger) { |
| m_context = context; |
| m_logger = logger; |
| } |
| |
| /** |
| * Adds a new service to the dependency manager. After the service was added |
| * it will be started immediately. |
| * |
| * @param service the service to add |
| */ |
| public void add(Service service) { |
| m_services.add(service); |
| service.start(); |
| } |
| |
| /** |
| * Removes a service from the dependency manager. Before the service is removed |
| * it is stopped first. |
| * |
| * @param service the service to remove |
| */ |
| public void remove(Service service) { |
| service.stop(); |
| m_services.remove(service); |
| } |
| |
| /** |
| * Creates a new service. |
| * |
| * @return the new service |
| */ |
| public Service createService() { |
| return new ServiceImpl(m_context, this, m_logger); |
| } |
| |
| /** |
| * Creates a new service dependency. |
| * |
| * @return the service dependency |
| */ |
| public ServiceDependency createServiceDependency() { |
| return new ServiceDependencyImpl(m_context, m_logger); |
| } |
| |
| /** |
| * Creates a new temporal service dependency. |
| * |
| * @return a new temporal service dependency |
| */ |
| public TemporalServiceDependency createTemporalServiceDependency() { |
| return new TemporalServiceDependencyImpl(m_context, m_logger); |
| } |
| |
| /** |
| * Creates a new configuration dependency. |
| * |
| * @return the configuration dependency |
| */ |
| public ConfigurationDependency createConfigurationDependency() { |
| return new ConfigurationDependencyImpl(m_context, m_logger); |
| } |
| |
| /** |
| * Creates a new configuration property MetaData. |
| * @return a new Configuration property MetaData. |
| */ |
| public PropertyMetaData createPropertyMetaData() { |
| return new PropertyMetaDataImpl(); |
| } |
| |
| /** |
| * Creates a new bundle dependency. |
| * |
| * @return a new BundleDependency instance. |
| */ |
| public BundleDependency createBundleDependency() { |
| return new BundleDependencyImpl(m_context, m_logger); |
| } |
| |
| /** |
| * Creates a new resource dependency. |
| * |
| * @return the resource dependency |
| */ |
| public ResourceDependency createResourceDependency() { |
| return new ResourceDependencyImpl(m_context, m_logger); |
| } |
| |
| /** |
| * Creates a new aspect. The aspect will be applied to any service that |
| * matches the specified interface and filter. For each matching service |
| * an aspect will be created based on the aspect implementation class. |
| * The aspect will be registered with the same interface and properties |
| * as the original service, plus any extra properties you supply here. |
| * It will also inherit all dependencies, and if you declare the original |
| * service as a member it will be injected. |
| * |
| * <h3>Usage Example</h3> |
| * |
| * <blockquote><pre> |
| * manager.createAspectService(ExistingService.class, "(foo=bar)", 10, "m_aspect") |
| * .setImplementation(ExistingServiceAspect.class) |
| * .setServiceProperties(new Hashtable() {{ put("additional", "properties"); }}); |
| * </pre></blockquote> |
| * |
| * @param serviceInterface the service interface to apply the aspect to |
| * @param serviceFilter the filter condition to use with the service interface |
| * @param ranking the level used to organize the aspect chain ordering |
| * @param attributeName the aspect implementation field name where to inject original service. |
| * If null, any field matching the original service will be injected. |
| * @return a service that acts as a factory for generating aspects |
| */ |
| public Service createAspectService(Class serviceInterface, String serviceFilter, int ranking, String attributeName) { |
| return new AspectServiceImpl(this, serviceInterface, serviceFilter, ranking, attributeName); |
| } |
| |
| /** |
| * Creates a new adapter. The adapter will be applied to any service that |
| * matches the specified interface and filter. For each matching service |
| * an adapter will be created based on the adapter implementation class. |
| * The adapter will be registered with the specified interface and existing properties |
| * from the original service plus any extra properties you supply here. |
| * It will also inherit all dependencies, and if you declare the original |
| * service as a member it will be injected. |
| * |
| * <h3>Usage Example</h3> |
| * |
| * <blockquote><pre> |
| * manager.createAdapterService(AdapteeService.class, "(foo=bar)") |
| * // The interface to use when registering adapter |
| * .setInterface(AdapterService.class, new Hashtable() {{ put("additional", "properties"); }}) |
| * // the implementation of the adapter |
| * .setImplementation(AdapterImpl.class); |
| * </pre></blockquote> |
| * @param serviceInterface the service interface to apply the adapter to |
| * @param serviceFilter the filter condition to use with the service interface |
| * @return a service that acts as a factory for generating adapters |
| */ |
| public Service createAdapterService(Class serviceInterface, String serviceFilter) { |
| return new AdapterServiceImpl(this, serviceInterface, serviceFilter); |
| } |
| |
| /** |
| * Creates a new resource adapter. The adapter will be applied to any resource that |
| * matches the specified filter condition. For each matching resource |
| * an adapter will be created based on the adapter implementation class. |
| * The adapter will be registered with the specified interface and existing properties |
| * from the original resource plus any extra properties you supply here. |
| * It will also inherit all dependencies, and if you declare the original |
| * service as a member it will be injected. |
| * |
| * <h3>Usage Example</h3> |
| * |
| * <blockquote><pre> |
| * manager.createResourceAdapterService("(&(path=/test)(repository=TestRepository))", true) |
| * // The interface to use when registering adapter |
| * .setInterface(AdapterService.class.getName(), new Hashtable() {{ put("foo", "bar"); }}) |
| * // the implementation of the adapter |
| * .setImplementation(AdapterServiceImpl.class); |
| * </pre></blockquote> |
| * |
| * @param resourceFilter the filter condition to use with the resource |
| * @param propagate <code>true</code> if properties from the resource should be propagated to the service |
| * @param callbackInstance |
| * @param callbackChanged |
| * @return a service that acts as a factory for generating resource adapters |
| * @see Resource |
| */ |
| public Service createResourceAdapterService(String resourceFilter, boolean propagate, Object callbackInstance, String callbackChanged) { |
| return new ResourceAdapterServiceImpl(this, resourceFilter, propagate, callbackInstance, callbackChanged); |
| } |
| |
| /** |
| * Creates a new bundle adapter. The adapter will be applied to any bundle that |
| * matches the specified bundle state mask and filter condition. For each matching |
| * bundle an adapter will be created based on the adapter implementation class. |
| * The adapter will be registered with the specified interface |
| * |
| * TODO and existing properties from the original resource plus any extra properties you supply here. |
| * It will also inherit all dependencies, and if you declare the original |
| * service as a member it will be injected. |
| * |
| * <h3>Usage Example</h3> |
| * |
| * <blockquote><pre> |
| * manager.createBundleAdapterService(Bundle.INSTALLED | Bundle.RESOLVED | Bundle.ACTIVE, |
| * "(Bundle-SymbolicName=org.apache.felix.dependencymanager)", |
| * true) |
| * // The interface to use when registering adapter |
| * .setInterface(AdapterService.class.getName(), new Hashtable() {{ put("foo", "bar"); }}) |
| * // the implementation of the adapter |
| * .setImplementation(AdapterServiceImpl.class); |
| * </pre></blockquote> |
| * |
| * @param bundleStateMask the bundle state mask to apply |
| * @param bundleFilter the filter to apply to the bundle manifest |
| * @param propagate <code>true</code> if properties from the bundle should be propagated to the service |
| * @return a service that acts as a factory for generating bundle adapters |
| */ |
| public Service createBundleAdapterService(int bundleStateMask, String bundleFilter, boolean propagate) { |
| return new BundleAdapterServiceImpl(this, bundleStateMask, bundleFilter, propagate); |
| } |
| |
| /** |
| * Creates a new Managed Service Factory Configuration Adapter. For each new Config Admin factory configuration matching |
| * the factoryPid, an adapter will be created based on the adapter implementation class. |
| * The adapter will be registered with the specified interface, and with the specified adapter service properties. |
| * Depending on the <code>propagate</code> parameter, every public factory configuration properties |
| * (which don't start with ".") will be propagated along with the adapter service properties. |
| * It will also inherit all dependencies. |
| * |
| * <h3>Usage Example</h3> |
| * |
| * <blockquote><pre> |
| * manager.createFactoryConfigurationAdapterService("MyFactoryPid", "update", true) |
| * // The interface to use when registering adapter |
| * .setInterface(AdapterService.class.getName(), new Hashtable() {{ put("foo", "bar"); }}) |
| * // the implementation of the adapter |
| * .setImplementation(AdapterServiceImpl.class); |
| * </pre></blockquote> |
| * |
| * @param factoryPid the pid matching the factory configuration |
| * @param update the adapter method name that will be notified when the factory configuration is created/updated. |
| * @param propagate true if public factory configuration should be propagated to the adapter service properties |
| * @return a service that acts as a factory for generating the managed service factory configuration adapter |
| */ |
| public Service createFactoryConfigurationAdapterService(String factoryPid, String update, boolean propagate) { |
| return new FactoryConfigurationAdapterServiceImpl(this, factoryPid, update, propagate); |
| } |
| |
| /** |
| * Creates a new Managed Service Factory Configuration Adapter with meta type support. For each new Config Admin |
| * factory configuration matching the factoryPid, an adapter will be created based on the adapter implementation |
| * class. The adapter will be registered with the specified interface, and with the specified adapter service |
| * properties. Depending on the <code>propagate</code> parameter, every public factory configuration properties |
| * (which don't start with ".") will be propagated along with the adapter service properties. |
| * It will also inherit all dependencies. |
| * |
| * <h3>Usage Example</h3> |
| * |
| * <blockquote><pre> |
| * PropertyMetaData[] propertiesMetaData = new PropertyMetaData[] { |
| * manager.createPropertyMetaData() |
| * .setCardinality(Integer.MAX_VALUE) |
| * .setType(String.class) |
| * .setHeading("English words") |
| * .setDescription("Declare here some valid english words") |
| * .setDefaults(new String[] {"hello", "world"}) |
| * .setId("words") |
| * }; |
| * |
| * manager.add(createFactoryConfigurationAdapterService("FactoryPid", |
| * "updated", |
| * true, // propagate CM settings |
| * "EnglishDictionary", |
| * "English dictionary configuration properties", |
| * null, |
| * propertiesMetaData) |
| * .setImplementation(Adapter.class)); |
| * </pre></blockquote> |
| * |
| * @param factoryPid the pid matching the factory configuration |
| * @param update the adapter method name that will be notified when the factory configuration is created/updated. |
| * @param propagate true if public factory configuration should be propagated to the adapter service properties |
| * @param heading The label used to display the tab name (or section) where the properties are displayed. |
| * Example: "Printer Service" |
| * @param desc A human readable description of the factory PID this configuration is associated with. |
| * Example: "Configuration for the PrinterService bundle" |
| * @param localization Points to the basename of the Properties file that can localize the Meta Type informations. |
| * The default localization base name for the properties is OSGI-INF/l10n/bundle, but can |
| * be overridden by the manifest Bundle-Localization header (see core specification, in section Localization |
| * on page 68). You can specify a specific localization basename file using this parameter |
| * (e.g. <code>"person"</code> will match person_du_NL.properties in the root bundle directory). |
| * @param propertiesMetaData Array of MetaData regarding configuration properties |
| * @return a service that acts as a factory for generating the managed service factory configuration adapter |
| */ |
| public Service createFactoryConfigurationAdapterService(String factoryPid, String update, boolean propagate, |
| String heading, String desc, String localization, |
| PropertyMetaData[] propertiesMetaData) |
| { |
| return new FactoryConfigurationAdapterServiceImpl(this, factoryPid, update, propagate, m_context, m_logger, |
| heading, desc, localization, propertiesMetaData); |
| } |
| |
| /** |
| * Returns a list of services. |
| * |
| * @return a list of services |
| */ |
| public List getServices() { |
| return Collections.unmodifiableList(m_services); |
| } |
| } |