| /* |
| * 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 static org.apache.felix.dm.impl.ConfigurationDependencyImpl.createCallbackType; |
| |
| import java.util.ArrayList; |
| import java.util.Arrays; |
| import java.util.Dictionary; |
| import java.util.Enumeration; |
| import java.util.Hashtable; |
| import java.util.List; |
| import java.util.stream.Stream; |
| |
| import org.apache.felix.dm.Component; |
| import org.apache.felix.dm.ConfigurationDependency; |
| import org.apache.felix.dm.DependencyManager; |
| import org.apache.felix.dm.FactoryComponent; |
| import org.apache.felix.dm.Logger; |
| import org.apache.felix.dm.PropertyMetaData; |
| import org.apache.felix.dm.context.ComponentContext; |
| import org.apache.felix.dm.impl.metatype.MetaTypeProviderImpl; |
| import org.osgi.framework.BundleContext; |
| import org.osgi.framework.Constants; |
| import org.osgi.service.cm.ManagedServiceFactory; |
| import org.osgi.service.metatype.MetaTypeProvider; |
| import org.osgi.service.metatype.ObjectClassDefinition; |
| |
| /** |
| * Factory configuration adapter service implementation. This class extends the FilterService in order to catch |
| * some Service methods for configuring actual adapter service implementation. |
| * |
| * @author <a href="mailto:dev@felix.apache.org">Felix Project Team</a> |
| */ |
| public class FactoryConfigurationAdapterImpl extends FilterComponent<FactoryComponent> implements FactoryComponent { |
| /** |
| * The pid matching the factory configuration. |
| */ |
| private volatile String m_factoryPid; |
| |
| /** |
| * The adapter method name that will be notified when the factory configuration is created/updated. |
| */ |
| private volatile String m_update = "updated"; |
| |
| /** |
| * true if public factory configuration should be propagated to the adapter service properties. |
| */ |
| private volatile boolean m_propagate; |
| |
| /** |
| * The object on which the updated callback will be invoked. |
| */ |
| private volatile Object m_callbackInstance; |
| |
| /** |
| * the configuration type's) to use instead of a dictionary. See the javadoc from {@link ConfigurationDependency} for |
| */ |
| private volatile Class<?>[] m_configTypes; |
| |
| /** |
| * The label used to display the tab name (or section) where the properties are displayed. |
| */ |
| private volatile String m_heading; |
| |
| /** |
| * A human readable description of the factory PID this configuration is associated with. |
| */ |
| private volatile String m_desc; |
| |
| /** |
| * Points to the basename of the Properties file that can localize the Meta Type informations. |
| */ |
| private volatile String m_localization; |
| |
| /** |
| * Array of MetaData regarding configuration properties. |
| */ |
| private volatile List<PropertyMetaData> m_propertiesMetaData = new ArrayList<>(0); |
| |
| // Our logger |
| protected final Logger m_logger; |
| |
| public FactoryConfigurationAdapterImpl(DependencyManager dm) { |
| super(dm.createComponent()); |
| m_logger = dm.getLogger(); |
| } |
| |
| /** |
| * Sets the pid matching the factory configuration |
| * @param factoryPid the pid matching the factory configuration |
| */ |
| public FactoryConfigurationAdapterImpl setFactoryPid(String factoryPid) { |
| this.m_factoryPid = factoryPid; |
| return this; |
| } |
| |
| /** |
| * Sets the pid matching the factory configuration using the specified class. |
| * The FQDN of the specified class will be used as the class name. |
| * @param m_factoryPid the pid matching the factory configuration |
| */ |
| public FactoryConfigurationAdapterImpl setFactoryPid(Class<?> clazz) { |
| this.m_factoryPid = clazz.getName(); |
| return this; |
| } |
| |
| /** |
| * Sets the method name that will be notified when the factory configuration is created/updated. |
| * By default, the callback name used is <code>updated</<code> |
| * @TODO describe supported signatures |
| * @param update the method name that will be notified when the factory configuration is created/updated. |
| */ |
| public FactoryConfigurationAdapterImpl setUpdated(String update) { |
| this.m_update = update; |
| return this; |
| } |
| |
| /** |
| * Sets the propagate flag (true means all public configuration properties are propagated to service properties). |
| * By default, public configurations are not propagated. |
| * @param propagate the propagate flag (true means all public configuration properties are propagated to service properties). |
| */ |
| public FactoryConfigurationAdapterImpl setPropagate(boolean propagate) { |
| this.m_propagate = propagate; |
| return this; |
| } |
| |
| /** |
| * Sets the object on which the updated callback will be invoked. |
| * By default, the callback is invoked on the component instance. |
| * @param callbackInstance the object on which the updated callback will be invoked. |
| */ |
| public FactoryConfigurationAdapterImpl setUpdateInstance(Object callbackInstance) { |
| this.m_callbackInstance = callbackInstance; |
| return this; |
| } |
| |
| /** |
| * Sets the configuration type to use instead of a dictionary. The updated callback is assumed to take |
| * as arguments the specified configuration types in the same order they are provided in this method. |
| * @param configTypes the configuration type to use instead of a dictionary |
| * @see ConfigurationDependency |
| */ |
| public FactoryConfigurationAdapterImpl setConfigType(Class<?> ... configTypes) { |
| this.m_configTypes = configTypes; |
| return this; |
| } |
| |
| /** |
| * Sets the label used to display the tab name (or section) where the properties are displayed. |
| * Example: "Printer Service" |
| * @param heading the label used to display the tab name (or section) where the properties are displayed. |
| */ |
| public FactoryConfigurationAdapterImpl setHeading(String heading) { |
| this.m_heading = heading; |
| return this; |
| } |
| |
| /** |
| * A human readable description of the factory PID this configuration is associated with. |
| * @param desc |
| */ |
| public FactoryConfigurationAdapterImpl setDesc(String desc) { |
| this.m_desc = desc; |
| return this; |
| } |
| |
| /** |
| * 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 localization |
| */ |
| public FactoryConfigurationAdapterImpl setLocalization(String localization) { |
| this.m_localization = localization; |
| return this; |
| } |
| |
| /** |
| * Sets MetaData regarding configuration properties. |
| * @param metaData the metadata regarding configuration properties |
| */ |
| public FactoryConfigurationAdapterImpl add(PropertyMetaData ... metaData) { |
| Stream.of(metaData).forEach(m_propertiesMetaData::add); |
| return this; |
| } |
| |
| @Override |
| protected void startInitial() { |
| Hashtable<String, Object> props = new Hashtable<>(); |
| props.put(Constants.SERVICE_PID, m_factoryPid); |
| |
| if (m_propertiesMetaData.size() == 0) { |
| m_component |
| .setInterface(ManagedServiceFactory.class.getName(), props) |
| .setImplementation(new AdapterImpl()) |
| .setCallbacks("init", null, "stop", null); |
| } else { |
| String[] ifaces = { ManagedServiceFactory.class.getName(), MetaTypeProvider.class.getName() }; |
| props.put(MetaTypeProvider.METATYPE_FACTORY_PID, m_factoryPid); |
| m_component |
| .setInterface(ifaces, props) |
| .setImplementation(new MetaTypeAdapterImpl()) |
| .setCallbacks("init", null, "stop", null); |
| } |
| } |
| |
| public String getName() { |
| return "Adapter for factory pid " + m_factoryPid; |
| } |
| |
| /** |
| * Creates, updates, or removes a service, when a ConfigAdmin factory configuration is created/updated or deleted. |
| */ |
| public class AdapterImpl extends AbstractDecorator implements ManagedServiceFactory { |
| |
| /** |
| * Returns the managed service factory name. |
| */ |
| public String getName() { |
| return m_factoryPid; |
| } |
| |
| /** |
| * Method called from our superclass, when we need to create a service. |
| */ |
| @SuppressWarnings("unchecked") |
| public Component createService(Object[] properties) throws Exception { |
| Dictionary<String, ?> settings = (Dictionary<String, ?>) properties[0]; |
| Component newService = m_manager.createComponent(); |
| |
| // Merge adapter service properties, with CM settings |
| Dictionary<String, Object> serviceProperties = getServiceProperties(settings); |
| newService.setInterface(m_serviceInterfaces, serviceProperties); |
| newService.setImplementation(m_serviceImpl); |
| newService.setFactory(m_factory, m_factoryCreateMethod); // if not set, no effect |
| newService.setComposition(m_compositionInstance, m_compositionMethod); // if not set, no effect |
| newService.setCallbacks(m_callbackObject, m_init, m_start, m_stop, m_destroy); // if not set, no effect |
| newService.setScope(m_scope); |
| configureAutoConfigState(newService, m_component); |
| |
| copyDependencies(m_component.getDependencies(), newService); |
| |
| for (int i = 0; i < m_stateListeners.size(); i ++) { |
| newService.add(m_stateListeners.get(i)); |
| } |
| |
| // Instantiate the component, because we need to invoke the updated callback synchronously, in the CM calling thread. |
| ((ComponentContext) newService).instantiateComponent(); |
| |
| CallbackTypeDef callbackInfo = createCallbackType(m_logger, newService, m_configTypes, settings); |
| invokeUpdated(newService, callbackInfo); |
| |
| return newService; |
| } |
| |
| /** |
| * Method called from our superclass, when we need to update a Service, because |
| * the configuration has changed. |
| */ |
| @SuppressWarnings("unchecked") |
| public void updateService(Object[] properties) throws Exception { |
| Dictionary<String, ?> cmSettings = (Dictionary<String, ?>) properties[0]; |
| Component service = (Component) properties[1]; |
| CallbackTypeDef callbackInfo = createCallbackType(m_logger, service, m_configTypes, cmSettings); |
| |
| invokeUpdated(service, callbackInfo); |
| |
| if (m_serviceInterfaces != null && m_propagate == true) { |
| Dictionary<String, ?> serviceProperties = getServiceProperties(cmSettings); |
| service.setServiceProperties(serviceProperties); |
| } |
| } |
| |
| private void invokeUpdated(Component service, CallbackTypeDef callbackInfo) throws Exception { |
| if (((ComponentContext) service).injectionDisabled()) { |
| return; |
| } |
| boolean callbackFound = false; |
| Object[] instances = getUpdateCallbackInstances(service); |
| for (Object instance : instances) { |
| try { |
| // Only inject if the component instance is not a prototype instance |
| InvocationUtil.invokeCallbackMethod(instance, m_update, callbackInfo.m_sigs, callbackInfo.m_args); |
| callbackFound |= true; |
| } |
| catch (NoSuchMethodException e) { |
| // if the method does not exist, ignore it |
| } |
| } |
| |
| if (! callbackFound) { |
| String[] instanceClasses = Stream.of(instances).map(c -> c.getClass().getName()).toArray(String[]::new); |
| m_logger.log(Logger.LOG_ERROR, "\"" + m_update + "\" configuration callback not found in any of the component classes: " + Arrays.toString(instanceClasses)); |
| } |
| } |
| |
| /** |
| * Returns the Update callback instances. |
| */ |
| private Object[] getUpdateCallbackInstances(Component comp) { |
| if (m_callbackInstance == null) { |
| return comp.getInstances(); |
| } else { |
| return new Object[] { m_callbackInstance }; |
| } |
| } |
| |
| /** |
| * Merge CM factory configuration setting with the adapter service properties. The private CM factory configuration |
| * settings are ignored. A CM factory configuration property is private if its name starts with a dot ("."). |
| * |
| * @param adapterProperties |
| * @param settings |
| * @return |
| */ |
| private Dictionary<String, Object> getServiceProperties(Dictionary<String, ?> settings) { |
| Dictionary<String, Object> props = new Hashtable<>(); |
| |
| // Add adapter Service Properties |
| if (m_serviceProperties != null) { |
| Enumeration<String> keys = m_serviceProperties.keys(); |
| while (keys.hasMoreElements()) { |
| String key = keys.nextElement(); |
| Object val = m_serviceProperties.get(key); |
| props.put(key, val); |
| } |
| } |
| |
| if (m_propagate) { |
| // Add CM setting into adapter service properties. |
| // (CM setting will override existing adapter service properties). |
| Enumeration<String> keys = settings.keys(); |
| while (keys.hasMoreElements()) { |
| String key = keys.nextElement(); |
| if (! key.toString().startsWith(".")) { |
| // public properties are propagated |
| Object val = settings.get(key); |
| props.put(key, val); |
| } |
| } |
| } |
| |
| return props; |
| } |
| } |
| |
| /** |
| * Extends AdapterImpl for MetaType support (deprecated, now users can directly use bnd metatypes). |
| */ |
| class MetaTypeAdapterImpl extends AdapterImpl implements MetaTypeProvider { |
| // Our MetaType Provider for describing our properties metadata |
| private final MetaTypeProviderImpl m_metaType; |
| |
| public MetaTypeAdapterImpl() { |
| BundleContext bctx = getBundleContext(); |
| Logger logger = getLogger(); |
| m_metaType = new MetaTypeProviderImpl(m_factoryPid, bctx, logger, null, this); |
| m_metaType.setName(m_heading); |
| m_metaType.setDescription(m_desc); |
| if (m_localization != null) { |
| m_metaType.setLocalization(m_localization); |
| } |
| for (PropertyMetaData properyMetaData : m_propertiesMetaData) { |
| m_metaType.add(properyMetaData); |
| } |
| } |
| |
| public String[] getLocales() { |
| return m_metaType.getLocales(); |
| } |
| |
| public ObjectClassDefinition getObjectClassDefinition(String id, String locale) { |
| return m_metaType.getObjectClassDefinition(id, locale); |
| } |
| } |
| } |