| /* |
| * 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.cm.impl; |
| |
| |
| import java.io.IOException; |
| import java.lang.reflect.Method; |
| import java.security.AccessController; |
| import java.security.PrivilegedAction; |
| import java.security.SecureRandom; |
| import java.util.ArrayList; |
| import java.util.Arrays; |
| import java.util.Collection; |
| import java.util.Dictionary; |
| import java.util.HashMap; |
| import java.util.HashSet; |
| import java.util.Hashtable; |
| import java.util.LinkedList; |
| import java.util.List; |
| import java.util.Random; |
| import java.util.Set; |
| |
| import org.apache.felix.cm.PersistenceManager; |
| import org.apache.felix.cm.impl.helper.BaseTracker; |
| import org.apache.felix.cm.impl.helper.ConfigurationMap; |
| import org.apache.felix.cm.impl.helper.ManagedServiceFactoryTracker; |
| import org.apache.felix.cm.impl.helper.ManagedServiceTracker; |
| import org.apache.felix.cm.impl.helper.TargetedPID; |
| import org.apache.felix.cm.impl.persistence.CachingPersistenceManagerProxy; |
| import org.apache.felix.cm.impl.persistence.ExtPersistenceManager; |
| import org.osgi.framework.Bundle; |
| import org.osgi.framework.BundleContext; |
| import org.osgi.framework.BundleEvent; |
| import org.osgi.framework.BundleListener; |
| import org.osgi.framework.Constants; |
| import org.osgi.framework.InvalidSyntaxException; |
| import org.osgi.framework.ServiceReference; |
| import org.osgi.framework.ServiceRegistration; |
| import org.osgi.service.cm.ConfigurationAdmin; |
| import org.osgi.service.cm.ConfigurationEvent; |
| import org.osgi.service.cm.ConfigurationListener; |
| import org.osgi.service.cm.ConfigurationPermission; |
| import org.osgi.service.cm.ConfigurationPlugin; |
| import org.osgi.service.cm.ManagedService; |
| import org.osgi.service.cm.ManagedServiceFactory; |
| import org.osgi.service.cm.SynchronousConfigurationListener; |
| import org.osgi.service.log.LogService; |
| import org.osgi.util.tracker.ServiceTracker; |
| |
| |
| /** |
| * The {@code ConfigurationManager} is the central class in this |
| * implementation of the Configuration Admin Service Specification. As such it |
| * has the following tasks: |
| * <ul> |
| * <li>It is a <code>BundleListener</code> which gets informed when the |
| * states of bundles change. Mostly this is needed to unbind any bound |
| * configuration in case a bundle is uninstalled. |
| * <li>It is a <code>ServiceListener</code> which gets informed when |
| * <code>ManagedService</code> and <code>ManagedServiceFactory</code> |
| * services are registered and unregistered. This is used to provide |
| * configuration to these services. As a service listener it also listens for |
| * {@link PersistenceManager} instances being registered to support different |
| * configuration persistence layers. |
| * <li>A {@link ConfigurationAdminFactory} instance is registered as the |
| * <code>ConfigurationAdmin</code> service. |
| * <li>Last but not least this instance manages all tasks laid out in the |
| * specification such as maintaining configuration, taking care of configuration |
| * events, etc. |
| * </ul> |
| */ |
| public class ConfigurationManager implements BundleListener |
| { |
| // random number generator to create configuration PIDs for factory |
| // configurations |
| private static Random numberGenerator; |
| |
| // the BundleContext of the Configuration Admin Service bundle |
| private final BundleContext bundleContext; |
| |
| // the service registration of the configuration admin |
| private volatile ServiceRegistration<ConfigurationAdmin> configurationAdminRegistration; |
| |
| // the service registration properties |
| private volatile Dictionary<String, Object> serviceProperties; |
| |
| // the ConfigurationEvent listeners |
| private ServiceTracker<ConfigurationListener, ConfigurationListener> configurationListenerTracker; |
| |
| // the synchronous ConfigurationEvent listeners |
| private ServiceTracker<SynchronousConfigurationListener, SynchronousConfigurationListener> syncConfigurationListenerTracker; |
| |
| // service tracker for managed services |
| private ManagedServiceTracker managedServiceTracker; |
| |
| // service tracker for managed service factories |
| private ManagedServiceFactoryTracker managedServiceFactoryTracker; |
| |
| // the thread used to schedule tasks required to run asynchronously |
| private UpdateThread updateThread; |
| |
| // the thread used to schedule events to be dispatched asynchronously |
| private UpdateThread eventThread; |
| |
| /** |
| * The persistence manager |
| */ |
| private final ExtPersistenceManager persistenceManager; |
| |
| // the cache of Configuration instances mapped by their PID |
| // have this always set to prevent NPE on bundle shutdown |
| private final HashMap<String, ConfigurationImpl> configurations = new HashMap<>(); |
| |
| /** |
| * The map of dynamic configuration bindings. This maps the |
| * PID of the dynamically bound configuration or factory to its bundle |
| * location. |
| * <p> |
| * On bundle startup this map is loaded from persistence and validated |
| * against the locations of installed bundles: Entries pointing to bundle |
| * locations not currently installed are removed. |
| * <p> |
| * The map is written to persistence on each change. |
| */ |
| private final DynamicBindings dynamicBindings; |
| |
| // flag indicating whether BundleChange events should be consumed (FELIX-979) |
| private volatile boolean handleBundleEvents; |
| |
| // flag indicating whether the manager is considered alive |
| private volatile boolean isActive; |
| |
| // Coordinator service if available |
| private volatile Object coordinator; |
| |
| public ConfigurationManager(final ExtPersistenceManager persistenceManager, |
| final BundleContext bundleContext) |
| throws IOException |
| { |
| // set up some fields |
| this.bundleContext = bundleContext; |
| this.dynamicBindings = new DynamicBindings( bundleContext, persistenceManager.getDelegatee() ); |
| this.persistenceManager = persistenceManager; |
| } |
| |
| public ServiceReference<ConfigurationAdmin> start() |
| { |
| // configurationlistener support |
| configurationListenerTracker = new ServiceTracker<>( bundleContext, ConfigurationListener.class, null ); |
| configurationListenerTracker.open(); |
| syncConfigurationListenerTracker = new ServiceTracker<>( bundleContext, |
| SynchronousConfigurationListener.class, null ); |
| syncConfigurationListenerTracker.open(); |
| |
| // initialize the asynchonous updater thread |
| ThreadGroup tg = new ThreadGroup( "Configuration Admin Service" ); |
| tg.setDaemon( true ); |
| this.updateThread = new UpdateThread( tg, "CM Configuration Updater" ); |
| this.eventThread = new UpdateThread( tg, "CM Event Dispatcher" ); |
| |
| // register as bundle and service listener |
| handleBundleEvents = true; |
| bundleContext.addBundleListener( this ); |
| |
| // consider alive now (before clients use Configuration Admin |
| // service registered in the next step) |
| isActive = true; |
| |
| // create and register configuration admin - start after PM tracker ... |
| ConfigurationAdminFactory caf = new ConfigurationAdminFactory( this ); |
| serviceProperties = new Hashtable<>(); |
| serviceProperties.put(Constants.SERVICE_PID, "org.apache.felix.cm.ConfigurationAdmin"); |
| serviceProperties.put(Constants.SERVICE_DESCRIPTION, |
| "Configuration Admin Service Specification 1.6 Implementation"); |
| serviceProperties.put(Constants.SERVICE_VENDOR, "The Apache Software Foundation"); |
| serviceProperties.put("osgi.command.scope", "cm"); |
| Set<String> functions = new HashSet<>(); |
| for ( Method method : ConfigurationAdmin.class.getMethods() ) |
| { |
| functions.add(method.getName()); |
| } |
| serviceProperties.put("osgi.command.function", functions.toArray(new String[0])); |
| configurationAdminRegistration = bundleContext.registerService(ConfigurationAdmin.class, caf, |
| serviceProperties); |
| |
| // start handling ManagedService[Factory] services |
| managedServiceTracker = new ManagedServiceTracker(this); |
| managedServiceFactoryTracker = new ManagedServiceFactoryTracker(this); |
| |
| // start processing the event queues only after registering the service |
| // see FELIX-2813 for details |
| this.updateThread.start(); |
| this.eventThread.start(); |
| |
| return configurationAdminRegistration.getReference(); |
| } |
| |
| |
| public void stop( ) |
| { |
| |
| // stop handling bundle events immediately |
| handleBundleEvents = false; |
| |
| // stop handling ManagedService[Factory] services |
| if (managedServiceFactoryTracker != null) { |
| managedServiceFactoryTracker.close(); |
| } |
| if (managedServiceTracker != null) { |
| managedServiceTracker.close(); |
| } |
| |
| // stop queue processing before unregistering the service |
| // see FELIX-2813 for details |
| if ( updateThread != null ) |
| { |
| updateThread.terminate(); |
| } |
| if ( eventThread != null ) |
| { |
| eventThread.terminate(); |
| } |
| |
| // immediately unregister the Configuration Admin before cleaning up |
| // clearing the field before actually unregistering the service |
| // prevents IllegalStateException in getServiceReference() if |
| // the field is not null but the service already unregistered |
| final ServiceRegistration<ConfigurationAdmin> caReg = configurationAdminRegistration; |
| configurationAdminRegistration = null; |
| if ( caReg != null ) |
| { |
| caReg.unregister(); |
| } |
| |
| // consider inactive after unregistering such that during |
| // unregistration the manager is still alive and can react |
| isActive = false; |
| |
| // stop listening for events |
| bundleContext.removeBundleListener( this ); |
| |
| if ( configurationListenerTracker != null ) |
| { |
| configurationListenerTracker.close(); |
| } |
| |
| if ( syncConfigurationListenerTracker != null ) |
| { |
| syncConfigurationListenerTracker.close(); |
| } |
| |
| // just ensure the configuration cache is empty |
| synchronized ( configurations ) |
| { |
| configurations.clear(); |
| } |
| } |
| |
| |
| /** |
| * Returns <code>true</code> if this manager is considered active. |
| */ |
| boolean isActive() |
| { |
| return isActive; |
| } |
| |
| public BundleContext getBundleContext() |
| { |
| return bundleContext; |
| } |
| |
| // ---------- Configuration caching support -------------------------------- |
| |
| ConfigurationImpl getCachedConfiguration( String pid ) |
| { |
| synchronized ( configurations ) |
| { |
| return configurations.get( pid ); |
| } |
| } |
| |
| |
| ConfigurationImpl[] getCachedConfigurations() |
| { |
| synchronized ( configurations ) |
| { |
| return configurations.values().toArray( |
| new ConfigurationImpl[configurations.size()] ); |
| } |
| } |
| |
| |
| ConfigurationImpl cacheConfiguration( ConfigurationImpl configuration ) |
| { |
| synchronized ( configurations ) |
| { |
| final String pid = configuration.getPidString(); |
| final Object existing = configurations.get( pid ); |
| if ( existing != null ) |
| { |
| return ( ConfigurationImpl ) existing; |
| } |
| |
| configurations.put( pid, configuration ); |
| return configuration; |
| } |
| } |
| |
| |
| void removeConfiguration( ConfigurationImpl configuration ) |
| { |
| synchronized ( configurations ) |
| { |
| configurations.remove( configuration.getPidString() ); |
| } |
| } |
| |
| |
| // ---------- ConfigurationAdminImpl support |
| |
| void setDynamicBundleLocation( final String pid, final String location ) |
| { |
| if ( dynamicBindings != null ) |
| { |
| try |
| { |
| dynamicBindings.putLocation( pid, location ); |
| } |
| catch ( IOException ioe ) |
| { |
| Log.logger.log( LogService.LOG_ERROR, "Failed storing dynamic configuration binding for {0} to {1}", new Object[] |
| { pid, location, ioe } ); |
| } |
| } |
| } |
| |
| |
| String getDynamicBundleLocation( final String pid ) |
| { |
| if ( dynamicBindings != null ) |
| { |
| return dynamicBindings.getLocation( pid ); |
| } |
| |
| return null; |
| } |
| |
| |
| ConfigurationImpl createFactoryConfiguration( String factoryPid, String location ) throws IOException |
| { |
| return cacheConfiguration( internalCreateConfiguration( createPid( factoryPid ), factoryPid, location ) ); |
| } |
| |
| ConfigurationImpl createFactoryConfiguration(String pid, String factoryPid, String location ) throws IOException |
| { |
| return cacheConfiguration( internalCreateConfiguration( pid, factoryPid, location ) ); |
| } |
| |
| /** |
| * Returns a targeted configuration for the given service PID and |
| * the reference target service. |
| * <p> |
| * A configuration returned has already been checked for visibility |
| * by the bundle registering the referenced service. Additionally, |
| * the configuration is also dynamically bound if needed. |
| * |
| * @param rawPid The raw service PID to get targeted configuration for. |
| * @param target The target <code>ServiceReference</code> to get |
| * configuration for. |
| * @return The best matching targeted configuration or <code>null</code> |
| * if there is no configuration at all. |
| * @throwss IOException if an error occurrs reading configurations |
| * from persistence. |
| */ |
| ConfigurationImpl getTargetedConfiguration( final String rawPid, final ServiceReference target ) throws IOException |
| { |
| final Bundle serviceBundle = target.getBundle(); |
| if ( serviceBundle != null ) |
| { |
| // list of targeted PIDs to check |
| final StringBuilder targetedPid = new StringBuilder( rawPid ); |
| int i = 3; |
| String[] names = new String[4]; |
| names[i--] = targetedPid.toString(); |
| targetedPid.append( '|' ).append( serviceBundle.getSymbolicName() ); |
| names[i--] = targetedPid.toString(); |
| targetedPid.append( '|' ).append( serviceBundle.getVersion().toString() ); |
| names[i--] = targetedPid.toString(); |
| targetedPid.append( '|' ).append( Activator.getLocation(serviceBundle) ); |
| names[i--] = targetedPid.toString(); |
| |
| for ( String candidate : names ) |
| { |
| ConfigurationImpl config = getConfiguration( candidate ); |
| if ( config != null && !config.isDeleted() ) |
| { |
| // check visibility to use and dynamically bind |
| if ( canReceive( serviceBundle, config.getBundleLocation() ) ) |
| { |
| config.tryBindLocation( Activator.getLocation(serviceBundle) ); |
| return config; |
| } |
| |
| // CM 1.4 / 104.13.2.2 / 104.5.3 |
| // act as if there is no configuration |
| Log.logger.log( |
| LogService.LOG_DEBUG, |
| "Cannot use configuration {0} for {1}: No visibility to configuration bound to {2}; calling with null", |
| new Object[] |
| { config.getPid(), target , config.getBundleLocation() } ); |
| } |
| } |
| } |
| else |
| { |
| Log.logger.log( LogService.LOG_INFO, |
| "Service for PID {0} seems to already have been unregistered, not updating with configuration", |
| new Object[] |
| { rawPid } ); |
| } |
| |
| // service already unregistered, nothing to do really |
| return null; |
| } |
| |
| |
| /** |
| * Returns the {@link ConfigurationImpl} with the given PID if |
| * available in the internal cache or from any persistence manager. |
| * Otherwise <code>null</code> is returned. |
| * |
| * @param pid The PID for which to return the configuration |
| * @return The configuration or <code>null</code> if non exists |
| * @throws IOException If an error occurs reading from a persistence |
| * manager. |
| */ |
| ConfigurationImpl getConfiguration( String pid ) throws IOException |
| { |
| ConfigurationImpl config = getCachedConfiguration( pid ); |
| if ( config != null ) |
| { |
| Log.logger.log( LogService.LOG_DEBUG, "Found cached configuration {0} bound to {1}", new Object[] |
| { pid, config.getBundleLocation() } ); |
| |
| config.ensureFactoryConfigPersisted(); |
| |
| return config; |
| } |
| |
| if ( this.persistenceManager.exists( pid ) ) |
| { |
| final Dictionary props = this.persistenceManager.load( pid ); |
| config = new ConfigurationImpl( this, this.persistenceManager, props ); |
| Log.logger.log( LogService.LOG_DEBUG, "Found existing configuration {0} bound to {1}", new Object[] |
| { pid, config.getBundleLocation() } ); |
| return cacheConfiguration( config ); |
| } |
| |
| // neither the cache nor the persistence manager has configuration |
| return null; |
| } |
| |
| |
| /** |
| * Creates a regular (non-factory) configuration for the given PID |
| * setting the bundle location accordingly. |
| * <p> |
| * This method assumes the configuration to not exist yet and will |
| * create it without further checking. |
| * |
| * @param pid The PID of the new configuration |
| * @param bundleLocation The location to set on the new configuration. |
| * This may be <code>null</code> to not bind the configuration |
| * yet. |
| * @return The new configuration persisted in the first persistence |
| * manager. |
| * @throws IOException If an error occurrs writing the configuration |
| * to the persistence. |
| */ |
| ConfigurationImpl createConfiguration( String pid, String bundleLocation ) throws IOException |
| { |
| // check for existing (cached or persistent) configuration |
| ConfigurationImpl config = getConfiguration( pid ); |
| if ( config != null ) |
| { |
| return config; |
| } |
| |
| // else create new configuration also setting the bundle location |
| // and cache the new configuration |
| config = internalCreateConfiguration( pid, null, bundleLocation ); |
| return cacheConfiguration( config ); |
| } |
| |
| |
| ConfigurationImpl[] listConfigurations( ConfigurationAdminImpl configurationAdmin, String filterString ) |
| throws IOException, InvalidSyntaxException |
| { |
| SimpleFilter filter = null; |
| if ( filterString != null ) |
| { |
| filter = SimpleFilter.parse( filterString ); |
| } |
| |
| Log.logger.log( LogService.LOG_DEBUG, "Listing configurations matching {0}", new Object[] |
| { filterString } ); |
| |
| List<ConfigurationImpl> configList = new ArrayList<>(); |
| |
| Collection<Dictionary> configs = this.persistenceManager.getDictionaries(filter ); |
| for(final Dictionary config : configs) |
| { |
| // ignore non-Configuration dictionaries |
| final String pid = ( String ) config.get( Constants.SERVICE_PID ); |
| if ( pid == null ) |
| { |
| continue; |
| } |
| |
| // CM 1.4 / 104.13.2.3 Permission required |
| if ( !configurationAdmin.hasPermission( this, |
| ( String ) config.get( ConfigurationAdmin.SERVICE_BUNDLELOCATION ) ) ) |
| { |
| Log.logger.log( |
| LogService.LOG_DEBUG, |
| "Omitting configuration {0}: No permission for bundle {1} on configuration bound to {2}", |
| new Object[] |
| { pid, Activator.getLocation(configurationAdmin.getBundle()), |
| config.get( ConfigurationAdmin.SERVICE_BUNDLELOCATION ) } ); |
| continue; |
| } |
| |
| // ensure the service.pid and returned a cached config if available |
| ConfigurationImpl cfg = null; |
| if ( this.persistenceManager instanceof CachingPersistenceManagerProxy) |
| { |
| cfg = getCachedConfiguration( pid ); |
| if (cfg == null) { |
| cfg = new ConfigurationImpl(this, this.persistenceManager, config); |
| // add the to configurations cache if it wasn't in the cache |
| cacheConfiguration(cfg); |
| } |
| } else { |
| cfg = new ConfigurationImpl( this, this.persistenceManager, config ); |
| } |
| |
| // FELIX-611: Ignore configuration objects without props |
| if ( !cfg.isNew() ) |
| { |
| Log.logger.log( LogService.LOG_DEBUG, "Adding configuration {0}", new Object[] |
| { pid } ); |
| configList.add( cfg ); |
| } |
| else |
| { |
| Log.logger.log( LogService.LOG_DEBUG, "Omitting configuration {0}: Is new", new Object[] |
| { pid } ); |
| } |
| } |
| |
| if ( configList.size() == 0 ) |
| { |
| return null; |
| } |
| return configList.toArray( new ConfigurationImpl[configList |
| .size()] ); |
| } |
| |
| |
| void deleted( ConfigurationImpl config ) |
| { |
| // remove the configuration from the cache |
| removeConfiguration( config ); |
| fireConfigurationEvent( ConfigurationEvent.CM_DELETED, config.getPidString(), config.getFactoryPidString() ); |
| final Runnable task = new DeleteConfiguration( config ); |
| if ( this.coordinator == null || !CoordinatorUtil.addToCoordination(this.coordinator, updateThread, task) ) |
| { |
| updateThread.schedule( task ); |
| } |
| Log.logger.log( LogService.LOG_DEBUG, "DeleteConfiguration({0}) scheduled", new Object[] |
| { config.getPid() } ); |
| } |
| |
| |
| void updated( ConfigurationImpl config, boolean fireEvent ) |
| { |
| if ( fireEvent ) |
| { |
| fireConfigurationEvent( ConfigurationEvent.CM_UPDATED, config.getPidString(), config.getFactoryPidString() ); |
| } |
| final Runnable task = new UpdateConfiguration( config ); |
| if ( this.coordinator == null || !CoordinatorUtil.addToCoordination(this.coordinator, updateThread, task) ) |
| { |
| updateThread.schedule( task ); |
| } |
| Log.logger.log( LogService.LOG_DEBUG, "UpdateConfiguration({0}) scheduled", new Object[] |
| { config.getPid() } ); |
| } |
| |
| |
| void locationChanged( ConfigurationImpl config, String oldLocation ) |
| { |
| fireConfigurationEvent( ConfigurationEvent.CM_LOCATION_CHANGED, config.getPidString(), config.getFactoryPidString() ); |
| if ( oldLocation != null && !config.isNew() ) |
| { |
| final Runnable task = new LocationChanged( config, oldLocation ); |
| if ( this.coordinator == null || !CoordinatorUtil.addToCoordination(this.coordinator, updateThread, task) ) |
| { |
| updateThread.schedule( task ); |
| } |
| Log.logger.log( LogService.LOG_DEBUG, "LocationChanged({0}, {1}=>{2}) scheduled", new Object[] |
| { config.getPid(), oldLocation, config.getBundleLocation() } ); |
| } |
| else |
| { |
| Log.logger.log( LogService.LOG_DEBUG, |
| "LocationChanged not scheduled for {0} (old location is null or configuration is new)", new Object[] |
| { config.getPid() } ); |
| } |
| } |
| |
| |
| void fireConfigurationEvent( int type, String pid, String factoryPid ) |
| { |
| // prevent event senders |
| FireConfigurationEvent asyncSender = new FireConfigurationEvent( this.configurationListenerTracker, type, pid, |
| factoryPid ); |
| FireConfigurationEvent syncSender = new FireConfigurationEvent( this.syncConfigurationListenerTracker, type, |
| pid, factoryPid ); |
| |
| // send synchronous events |
| if ( syncSender.hasConfigurationEventListeners() ) |
| { |
| syncSender.run(); |
| } |
| else |
| { |
| Log.logger.log( LogService.LOG_DEBUG, "No SynchronousConfigurationListeners to send {0} event to.", new Object[] |
| { syncSender.getTypeName() } ); |
| } |
| |
| // schedule asynchronous events |
| if ( asyncSender.hasConfigurationEventListeners() ) |
| { |
| if ( this.coordinator == null || !CoordinatorUtil.addToCoordination(this.coordinator, eventThread, asyncSender) ) |
| { |
| eventThread.schedule( asyncSender ); |
| } |
| } |
| else |
| { |
| Log.logger.log( LogService.LOG_DEBUG, "No ConfigurationListeners to send {0} event to.", new Object[] |
| { asyncSender.getTypeName() } ); |
| } |
| } |
| |
| |
| // ---------- BundleListener ----------------------------------------------- |
| |
| @Override |
| public void bundleChanged( BundleEvent event ) |
| { |
| if ( event.getType() == BundleEvent.UNINSTALLED && handleBundleEvents ) |
| { |
| final String location = Activator.getLocation(event.getBundle()); |
| |
| // we only reset dynamic bindings, which are only present in |
| // cached configurations, hence only consider cached configs here |
| final ConfigurationImpl[] configs = getCachedConfigurations(); |
| for ( int i = 0; i < configs.length; i++ ) |
| { |
| final ConfigurationImpl cfg = configs[i]; |
| if ( location.equals( cfg.getDynamicBundleLocation() ) ) |
| { |
| cfg.setDynamicBundleLocation( null, true ); |
| } |
| } |
| } |
| } |
| |
| |
| // ---------- internal ----------------------------------------------------- |
| |
| private ServiceReference<ConfigurationAdmin> getServiceReference() |
| { |
| ServiceRegistration<ConfigurationAdmin> reg = configurationAdminRegistration; |
| if (reg != null) { |
| return reg.getReference(); |
| } |
| |
| // probably called for firing an event during service registration |
| // since we didn't get the service registration yet we use the |
| // service registry to get our service reference |
| BundleContext context = bundleContext; |
| if ( context != null ) |
| { |
| try |
| { |
| Collection<ServiceReference<ConfigurationAdmin>> refs = context.getServiceReferences( ConfigurationAdmin.class, null ); |
| if ( refs != null && !refs.isEmpty()) |
| { |
| for(final ServiceReference<ConfigurationAdmin> ref : refs) |
| { |
| if ( ref.getBundle().getBundleId() == context.getBundle().getBundleId() ) |
| { |
| return ref; |
| } |
| } |
| } |
| } |
| catch ( InvalidSyntaxException e ) |
| { |
| // unexpected since there is no filter |
| } |
| } |
| |
| // service references |
| return null; |
| } |
| |
| |
| /** |
| * Configures the ManagedService and returns the service.pid |
| * service property as a String[], which may be <code>null</code> if |
| * the ManagedService does not have such a property. |
| */ |
| /** |
| * Configures the ManagedServiceFactory and returns the service.pid |
| * service property as a String[], which may be <code>null</code> if |
| * the ManagedServiceFactory does not have such a property. |
| */ |
| /** |
| * Schedules the configuration of the referenced service with |
| * configuration for the given PID. |
| * |
| * @param pid The list of service PID of the configurations to be |
| * provided to the referenced service. |
| * @param sr The <code>ServiceReference</code> to the service |
| * to be configured. |
| * @param factory <code>true</code> If the service is considered to |
| * be a <code>ManagedServiceFactory</code>. Otherwise the service |
| * is considered to be a <code>ManagedService</code>. |
| */ |
| public void configure( String[] pid, ServiceReference sr, final boolean factory, final ConfigurationMap<?> configs ) |
| { |
| if ( Log.logger.isLogEnabled( LogService.LOG_DEBUG ) ) |
| { |
| Log.logger.log( LogService.LOG_DEBUG, "configure(ManagedService {0})", new Object[] |
| { sr } ); |
| } |
| |
| Runnable r; |
| if ( factory ) |
| { |
| r = new ManagedServiceFactoryUpdate( pid, sr, configs ); |
| } |
| else |
| { |
| r = new ManagedServiceUpdate( pid, sr, configs ); |
| } |
| if ( this.coordinator == null || !CoordinatorUtil.addToCoordination(this.coordinator, updateThread, r) ) |
| { |
| updateThread.schedule( r ); |
| } |
| Log.logger.log( LogService.LOG_DEBUG, "[{0}] scheduled", new Object[] |
| { r } ); |
| } |
| |
| |
| /** |
| * Factory method to create a new configuration object. The configuration |
| * object returned is not stored in configuration cache and only persisted |
| * if the <code>factoryPid</code> parameter is <code>null</code>. |
| * |
| * @param pid |
| * The PID of the new configuration object. Must not be |
| * <code>null</code>. |
| * @param factoryPid |
| * The factory PID of the new configuration. Not |
| * <code>null</code> if the new configuration object belongs to a |
| * factory. The configuration object will not be persisted if |
| * this parameter is not <code>null</code>. |
| * @param bundleLocation |
| * The bundle location of the bundle to which the configuration |
| * belongs or <code>null</code> if the configuration is not bound |
| * yet. |
| * @return The new configuration object |
| * @throws IOException |
| * May be thrown if an error occurrs persisting the new |
| * configuration object. |
| */ |
| private ConfigurationImpl internalCreateConfiguration( String pid, String factoryPid, String bundleLocation ) throws IOException |
| { |
| Log.logger.log( LogService.LOG_DEBUG, "createConfiguration({0}, {1}, {2})", new Object[] |
| { pid, factoryPid, bundleLocation } ); |
| return new ConfigurationImpl( this, this.persistenceManager, pid, factoryPid, bundleLocation ); |
| } |
| |
| |
| /** |
| * Returns a list of {@link Factory} instances according to the |
| * Configuration Admin 1.5 specification for targeted PIDs (Section |
| * 104.3.2) |
| * |
| * @param rawFactoryPid The raw factory PID without any targettng. |
| * @param target The <code>ServiceReference</code> of the service to |
| * be supplied with targeted configuration. |
| * @return A list of {@link Factory} instances as listed above. This |
| * list will always at least include an instance for the |
| * <code>rawFactoryPid</code>. Other instances are only included |
| * if existing. |
| * @throws IOException If an error occurs reading any of the |
| * {@link Factory} instances from persistence |
| */ |
| List<String> getTargetedFactories( final String rawFactoryPid, final ServiceReference target ) throws IOException |
| { |
| List<String> factories = new LinkedList<>(); |
| |
| final Bundle serviceBundle = target.getBundle(); |
| if ( serviceBundle != null ) |
| { |
| final StringBuilder targetedPid = new StringBuilder( rawFactoryPid ); |
| factories.add( targetedPid.toString() ); |
| |
| targetedPid.append( '|' ).append( serviceBundle.getSymbolicName() ); |
| factories.add( 0, targetedPid.toString() ); |
| |
| targetedPid.append( '|' ).append( serviceBundle.getVersion().toString() ); |
| factories.add( 0, targetedPid.toString() ); |
| |
| targetedPid.append( '|' ).append( Activator.getLocation(serviceBundle) ); |
| factories.add( 0, targetedPid.toString() ); |
| } |
| |
| return factories; |
| } |
| |
| /** |
| * Calls the registered configuration plugins on the given configuration |
| * properties from the given configuration object. |
| * <p> |
| * The plugins to be called are selected as <code>ConfigurationPlugin</code> |
| * services registered with a <code>cm.target</code> property set to |
| * <code>*</code> or the factory PID of the configuration (for factory |
| * configurations) or the PID of the configuration (for non-factory |
| * configurations). |
| * |
| * @param props The configuration properties run through the registered |
| * ConfigurationPlugin services. This must not be |
| * <code>null</code>. |
| * @param sr The service reference of the managed service (factory) which |
| * is to be updated with configuration |
| * @param configPid The PID of the configuration object whose properties |
| * are to be augmented |
| * @param factoryPid the factory PID of the configuration object whose |
| * properties are to be augmented. This is non-<code>null</code> |
| * only for a factory configuration. |
| */ |
| public void callPlugins( final Dictionary<String, Object> props, final ServiceReference<?> sr, final String configPid, |
| final String factoryPid ) |
| { |
| ServiceReference<?>[] plugins = null; |
| try |
| { |
| final String targetPid = (factoryPid == null) ? configPid : factoryPid; |
| String filter = "(|(!(cm.target=*))(cm.target=" + targetPid + "))"; |
| plugins = bundleContext.getServiceReferences( ConfigurationPlugin.class.getName(), filter ); |
| } |
| catch ( InvalidSyntaxException ise ) |
| { |
| // no filter, no exception ... |
| } |
| |
| // abort early if there are no plugins |
| if ( plugins == null || plugins.length == 0 ) |
| { |
| return; |
| } |
| |
| // sort the plugins by their service.cmRanking |
| if ( plugins.length > 1 ) |
| { |
| Arrays.sort( plugins, RankingComparator.CM_RANKING ); |
| } |
| |
| // call the plugins in order |
| for ( int i = 0; i < plugins.length; i++ ) |
| { |
| ServiceReference<?> pluginRef = plugins[i]; |
| ConfigurationPlugin plugin = ( ConfigurationPlugin ) bundleContext.getService( pluginRef ); |
| if ( plugin != null ) |
| { |
| // if cmRanking is below 0 or above 1000, ignore modifications from the plugin |
| boolean ignore = false; |
| Object rankObj = pluginRef.getProperty( ConfigurationPlugin.CM_RANKING ); |
| if ( rankObj instanceof Integer ) |
| { |
| final int ranking = ( ( Integer ) rankObj ).intValue(); |
| ignore = (ranking < 0 ) || (ranking > 1000); |
| } |
| |
| try |
| { |
| plugin.modifyConfiguration( sr, ignore ? CaseInsensitiveDictionary.unmodifiable(props) : props ); |
| } |
| catch ( Throwable t ) |
| { |
| Log.logger.log( LogService.LOG_ERROR, "Unexpected problem calling configuration plugin {0}", new Object[] |
| { pluginRef , t } ); |
| } |
| finally |
| { |
| // ensure ungetting the plugin |
| bundleContext.ungetService( pluginRef ); |
| } |
| ConfigurationImpl.setAutoProperties( props, configPid, factoryPid ); |
| } |
| } |
| } |
| |
| |
| /** |
| * Creates a PID for the given factoryPid |
| * |
| * @param factoryPid |
| * @return |
| */ |
| private static String createPid( String factoryPid ) |
| { |
| Random ng = numberGenerator; |
| if ( ng == null ) |
| { |
| // FELIX-2771 Secure Random not available on Mika |
| try |
| { |
| ng = new SecureRandom(); |
| } |
| catch ( Throwable t ) |
| { |
| // fall back to Random |
| ng = new Random(); |
| } |
| } |
| |
| byte[] randomBytes = new byte[16]; |
| ng.nextBytes( randomBytes ); |
| randomBytes[6] &= 0x0f; /* clear version */ |
| randomBytes[6] |= 0x40; /* set to version 4 */ |
| randomBytes[8] &= 0x3f; /* clear variant */ |
| randomBytes[8] |= 0x80; /* set to IETF variant */ |
| |
| StringBuilder buf = new StringBuilder( factoryPid.length() + 1 + 36 ); |
| |
| // prefix the new pid with the factory pid |
| buf.append( factoryPid ).append( "." ); |
| |
| // serialize the UUID into the buffer |
| for ( int i = 0; i < randomBytes.length; i++ ) |
| { |
| |
| if ( i == 4 || i == 6 || i == 8 || i == 10 ) |
| { |
| buf.append( '-' ); |
| } |
| |
| int val = randomBytes[i] & 0xff; |
| buf.append( Integer.toHexString( val >> 4 ) ); |
| buf.append( Integer.toHexString( val & 0xf ) ); |
| } |
| |
| return buf.toString(); |
| } |
| |
| |
| /** |
| * Checks whether the bundle is allowed to receive the configuration |
| * with the given location binding. |
| * <p> |
| * This method implements the logic defined CM 1.4 / 104.4.1: |
| * <ul> |
| * <li>If the location is <code>null</code> (the configuration is not |
| * bound yet), assume the bundle is allowed</li> |
| * <li>If the location is a single location (no leading "?"), require |
| * the bundle's location to match</li> |
| * <li>If the location is a multi-location (leading "?"), assume the |
| * bundle is allowed if there is no security manager. If there is a |
| * security manager, check whether the bundle has "target" permission |
| * on this location.</li> |
| * </ul> |
| */ |
| boolean canReceive( final Bundle bundle, final String location ) |
| { |
| if ( location == null ) |
| { |
| Log.logger.log( LogService.LOG_DEBUG, "canReceive=true; bundle={0}; configuration=(unbound)", new Object[] |
| { Activator.getLocation(bundle) } ); |
| return true; |
| } |
| else if ( location.startsWith( "?" ) ) |
| { |
| // multi-location |
| if ( System.getSecurityManager() != null ) |
| { |
| final boolean hasPermission = bundle.hasPermission( new ConfigurationPermission( location, |
| ConfigurationPermission.TARGET ) ); |
| Log.logger.log( LogService.LOG_DEBUG, "canReceive={0}: bundle={1}; configuration={2} (SecurityManager check)", |
| new Object[] |
| { new Boolean( hasPermission ), Activator.getLocation(bundle), location } ); |
| return hasPermission; |
| } |
| |
| Log.logger.log( LogService.LOG_DEBUG, "canReceive=true; bundle={0}; configuration={1} (no SecurityManager)", |
| new Object[] |
| { Activator.getLocation(bundle), location } ); |
| return true; |
| } |
| else |
| { |
| // single location, must match |
| final boolean hasPermission = location.equals( Activator.getLocation(bundle) ); |
| Log.logger.log( LogService.LOG_DEBUG, "canReceive={0}: bundle={1}; configuration={2}", new Object[] |
| { new Boolean( hasPermission ), Activator.getLocation(bundle), location } ); |
| return hasPermission; |
| } |
| } |
| |
| |
| // ---------- inner classes |
| |
| /** |
| * The <code>ManagedServiceUpdate</code> updates a freshly registered |
| * <code>ManagedService</code> with a specific configuration. If a |
| * ManagedService is registered with multiple PIDs an instance of this |
| * class is used for each registered PID. |
| */ |
| private class ManagedServiceUpdate implements Runnable |
| { |
| private final String[] pids; |
| |
| private final ServiceReference<ManagedService> sr; |
| |
| private final ConfigurationMap<?> configs; |
| |
| |
| ManagedServiceUpdate( String[] pids, ServiceReference<ManagedService> sr, ConfigurationMap<?> configs ) |
| { |
| this.pids = pids; |
| this.sr = sr; |
| this.configs = configs; |
| } |
| |
| |
| @Override |
| public void run() |
| { |
| for ( String pid : this.pids ) |
| { |
| try |
| { |
| final ConfigurationImpl config = getTargetedConfiguration( pid, this.sr ); |
| provide( pid, config ); |
| } |
| catch ( IOException ioe ) |
| { |
| Log.logger.log( LogService.LOG_ERROR, "Error loading configuration for {0}", new Object[] |
| { pid, ioe } ); |
| } |
| catch ( Exception e ) |
| { |
| Log.logger.log( LogService.LOG_ERROR, "Unexpected problem providing configuration {0} to service {1}", |
| new Object[] |
| { pid, this.sr, e } ); |
| } |
| } |
| } |
| |
| |
| private void provide(final String servicePid, final ConfigurationImpl config) |
| { |
| // check configuration |
| final TargetedPID configPid; |
| final Dictionary<String, Object> properties; |
| final long revision; |
| if ( config != null ) |
| { |
| synchronized ( config ) |
| { |
| configPid = config.getPid(); |
| properties = config.getProperties( true ); |
| revision = config.getRevision(); |
| } |
| } |
| else |
| { |
| // 104.5.3 ManagedService.updated must be called with null |
| // if no configuration is available |
| configPid = new TargetedPID( servicePid ); |
| properties = null; |
| revision = -1; |
| } |
| |
| Log.logger.log( LogService.LOG_DEBUG, "Updating service {0} with configuration {1}@{2}", new Object[] |
| { servicePid, configPid, new Long( revision ) } ); |
| |
| managedServiceTracker.provideConfiguration( sr, configPid, null, properties, revision, this.configs ); |
| } |
| |
| @Override |
| public String toString() |
| { |
| return "ManagedService Update: pid=" + Arrays.asList( pids ); |
| } |
| } |
| |
| /** |
| * The <code>ManagedServiceFactoryUpdate</code> updates a freshly |
| * registered <code>ManagedServiceFactory</code> with a specific |
| * configuration. If a ManagedServiceFactory is registered with |
| * multiple PIDs an instance of this class is used for each registered |
| * PID. |
| */ |
| private class ManagedServiceFactoryUpdate implements Runnable |
| { |
| private final String[] factoryPids; |
| |
| private final ServiceReference<ManagedServiceFactory> sr; |
| |
| private final ConfigurationMap<?> configs; |
| |
| |
| ManagedServiceFactoryUpdate( String[] factoryPids, ServiceReference<ManagedServiceFactory> sr, final ConfigurationMap<?> configs ) |
| { |
| this.factoryPids = factoryPids; |
| this.sr = sr; |
| this.configs = configs; |
| } |
| |
| |
| @Override |
| public void run() |
| { |
| for ( String factoryPid : this.factoryPids ) |
| { |
| |
| try |
| { |
| final List<String> targetedFactoryPids = getTargetedFactories( factoryPid, sr ); |
| final Set<String> pids = persistenceManager.getFactoryConfigurationPids(targetedFactoryPids); |
| for ( final String pid : pids ) |
| { |
| ConfigurationImpl cfg; |
| try |
| { |
| cfg = getConfiguration( pid ); |
| } |
| catch ( IOException ioe ) |
| { |
| Log.logger.log( LogService.LOG_ERROR, "Error loading configuration for {0}", new Object[] |
| { pid, ioe } ); |
| continue; |
| } |
| |
| // sanity check on the configuration |
| if ( cfg == null ) |
| { |
| Log.logger.log( LogService.LOG_ERROR, |
| "Configuration {0} referred to by factory {1} does not exist", new Object[] |
| { pid, factoryPid } ); |
| continue; |
| } |
| else if ( cfg.isNew() ) |
| { |
| // Configuration has just been created but not yet updated |
| // we currently just ignore it and have the update mechanism |
| // provide the configuration to the ManagedServiceFactory |
| // As of FELIX-612 (not storing new factory configurations) |
| // this should not happen. We keep this for added stability |
| // but raise the logging level to error. |
| Log.logger.log( LogService.LOG_ERROR, "Ignoring new configuration pid={0}", new Object[] |
| { pid } ); |
| continue; |
| } |
| |
| provide( factoryPid, cfg ); |
| } |
| } |
| catch ( IOException ioe ) |
| { |
| Log.logger.log( LogService.LOG_ERROR, "Cannot get factory mapping for factory PID {0}", new Object[] |
| { factoryPid, ioe } ); |
| } |
| } |
| } |
| |
| |
| private void provide(final String factoryPid, final ConfigurationImpl config) { |
| |
| final Dictionary<String, Object> rawProperties; |
| final long revision; |
| synchronized ( config ) |
| { |
| rawProperties = config.getProperties( true ); |
| revision = config.getRevision(); |
| } |
| |
| Log.logger.log( LogService.LOG_DEBUG, "Updating service {0} with configuration {1}/{2}@{3}", new Object[] |
| { factoryPid, config.getFactoryPid(), config.getPid(), new Long( revision ) } ); |
| |
| // CM 1.4 / 104.13.2.1 |
| final Bundle serviceBundle = this.sr.getBundle(); |
| if ( serviceBundle == null ) |
| { |
| Log.logger.log( |
| LogService.LOG_INFO, |
| "ManagedServiceFactory for factory PID {0} seems to already have been unregistered, not updating with factory", |
| new Object[] |
| { factoryPid } ); |
| return; |
| } |
| |
| if ( !canReceive( serviceBundle, config.getBundleLocation() ) ) |
| { |
| Log.logger.log( LogService.LOG_ERROR, |
| "Cannot use configuration {0} for {1}: No visibility to configuration bound to {2}", |
| new Object[] |
| { config.getPid(), sr , config.getBundleLocation() } ); |
| |
| // no service, really, bail out |
| return; |
| } |
| |
| // 104.4.2 Dynamic Binding |
| config.tryBindLocation( Activator.getLocation(serviceBundle) ); |
| |
| // update the service with the configuration (if non-null) |
| if ( rawProperties != null ) |
| { |
| Log.logger.log( LogService.LOG_DEBUG, "{0}: Updating configuration pid={1}", new Object[] |
| { sr, config.getPid() } ); |
| managedServiceFactoryTracker.provideConfiguration( sr, config.getPid(), config.getFactoryPid(), |
| rawProperties, revision, this.configs ); |
| } |
| } |
| |
| |
| @Override |
| public String toString() |
| { |
| return "ManagedServiceFactory Update: factoryPid=" + Arrays.asList( this.factoryPids ); |
| } |
| } |
| |
| private abstract class ConfigurationProvider<T> implements Runnable |
| { |
| |
| protected final ConfigurationImpl config; |
| protected final long revision; |
| protected final Dictionary<String, ?> properties; |
| private BaseTracker<T> helper; |
| |
| |
| protected ConfigurationProvider( final ConfigurationImpl config ) |
| { |
| synchronized ( config ) |
| { |
| this.config = config; |
| this.revision = config.getRevision(); |
| this.properties = config.getProperties( true ); |
| } |
| } |
| |
| |
| protected TargetedPID getTargetedServicePid() |
| { |
| final TargetedPID factoryPid = this.config.getFactoryPid(); |
| if ( factoryPid != null ) |
| { |
| return factoryPid; |
| } |
| return this.config.getPid(); |
| } |
| |
| |
| protected BaseTracker<T> getHelper() |
| { |
| if ( this.helper == null ) |
| { |
| this.helper = ( BaseTracker<T> ) ( ( this.config.getFactoryPid() == null ) ? ConfigurationManager.this.managedServiceTracker |
| : ConfigurationManager.this.managedServiceFactoryTracker ); |
| } |
| return this.helper; |
| } |
| |
| |
| protected boolean provideReplacement( ServiceReference<T> sr ) |
| { |
| if ( this.config.getFactoryPid() == null ) |
| { |
| try |
| { |
| final String configPidString = this.getHelper().getServicePid( sr, this.config.getPid() ); |
| if (configPidString == null) { |
| return false; // The managed service is not registered anymore in the OSGi service registry. |
| } |
| final ConfigurationImpl rc = getTargetedConfiguration( configPidString, sr ); |
| if ( rc != null ) |
| { |
| final TargetedPID configPid; |
| final Dictionary<String, Object> properties; |
| final long revision; |
| synchronized ( rc ) |
| { |
| configPid = rc.getPid(); |
| properties = rc.getProperties( true ); |
| revision = rc.getRevision(); |
| } |
| |
| this.getHelper().provideConfiguration( sr, configPid, null, properties, -revision, null ); |
| |
| return true; |
| } |
| } |
| catch ( IOException ioe ) |
| { |
| Log.logger.log( LogService.LOG_ERROR, "Error loading configuration for {0}", new Object[] |
| { this.config.getPid(), ioe } ); |
| } |
| catch ( Exception e ) |
| { |
| Log.logger.log( LogService.LOG_ERROR, "Unexpected problem providing configuration {0} to service {1}", |
| new Object[] |
| { this.config.getPid(), sr, e } ); |
| } |
| } |
| |
| // factory or no replacement available |
| return false; |
| } |
| } |
| |
| /** |
| * The <code>UpdateConfiguration</code> is used to update |
| * <code>ManagedService[Factory]</code> services with the configuration |
| * they are subscribed to. This may cause the configuration to be |
| * supplied to multiple services. |
| */ |
| private class UpdateConfiguration extends ConfigurationProvider |
| { |
| |
| UpdateConfiguration( final ConfigurationImpl config ) |
| { |
| super( config ); |
| } |
| |
| |
| @Override |
| public void run() |
| { |
| Log.logger.log( LogService.LOG_DEBUG, "Updating configuration {0} to revision #{1}", new Object[] |
| { config.getPid(), new Long( revision ) } ); |
| |
| final List<ServiceReference<?>> srList = this.getHelper().getServices( getTargetedServicePid() ); |
| if ( !srList.isEmpty() ) |
| { |
| // optionally bind dynamically to the first service |
| Bundle bundle = srList.get(0).getBundle(); |
| if (bundle == null) { |
| Log.logger.log( LogService.LOG_DEBUG, |
| "Service {0} seems to be unregistered concurrently (not providing configuration)", |
| new Object[] |
| { srList.get(0) } ); |
| return; |
| } |
| config.tryBindLocation( Activator.getLocation(bundle) ); |
| |
| final String configBundleLocation = config.getBundleLocation(); |
| |
| // provide configuration to all services from the |
| // correct bundle |
| for (ServiceReference<?> ref : srList) |
| { |
| final Bundle refBundle = ref.getBundle(); |
| if ( refBundle == null ) |
| { |
| Log.logger.log( LogService.LOG_DEBUG, |
| "Service {0} seems to be unregistered concurrently (not providing configuration)", |
| new Object[] |
| { ref } ); |
| } |
| else if ( canReceive( refBundle, configBundleLocation ) ) |
| { |
| this.getHelper().provideConfiguration( ref, this.config.getPid(), this.config.getFactoryPid(), |
| this.properties, this.revision, null ); |
| } |
| else |
| { |
| // CM 1.4 / 104.13.2.2 |
| Log.logger.log( LogService.LOG_ERROR, |
| "Cannot use configuration {0} for {1}: No visibility to configuration bound to {2}", |
| new Object[] |
| { config.getPid(), ref, configBundleLocation } ); |
| } |
| |
| } |
| } |
| else if ( Log.logger.isLogEnabled( LogService.LOG_DEBUG ) ) |
| { |
| Log.logger.log( LogService.LOG_DEBUG, "No ManagedService[Factory] registered for updates to configuration {0}", |
| new Object[] |
| { config.getPid() } ); |
| } |
| } |
| |
| |
| @Override |
| public String toString() |
| { |
| return "Update: pid=" + config.getPid(); |
| } |
| } |
| |
| |
| /** |
| * The <code>DeleteConfiguration</code> class is used to inform |
| * <code>ManagedService[Factory]</code> services of a configuration |
| * being deleted. |
| */ |
| private class DeleteConfiguration extends ConfigurationProvider |
| { |
| |
| private final String configLocation; |
| |
| |
| DeleteConfiguration( ConfigurationImpl config ) |
| { |
| /* |
| * NOTE: We keep the configuration because it might be cleared just |
| * after calling this method. The pid and factoryPid fields are |
| * final and cannot be reset. |
| */ |
| super(config); |
| this.configLocation = config.getBundleLocation(); |
| } |
| |
| |
| @Override |
| public void run() |
| { |
| List<ServiceReference<?>> srList = this.getHelper().getServices( getTargetedServicePid() ); |
| if ( !srList.isEmpty() ) |
| { |
| for (ServiceReference<?> sr : srList) |
| { |
| final Bundle srBundle = sr.getBundle(); |
| if ( srBundle == null ) |
| { |
| Log.logger.log( LogService.LOG_DEBUG, |
| "Service {0} seems to be unregistered concurrently (not removing configuration)", |
| new Object[] |
| { sr } ); |
| } |
| else if ( canReceive( srBundle, configLocation ) ) |
| { |
| // revoke configuration unless a replacement |
| // configuration can be provided |
| if ( !this.provideReplacement( sr ) ) |
| { |
| this.getHelper().removeConfiguration( sr, this.config.getPid(), this.config.getFactoryPid() ); |
| } |
| } |
| else |
| { |
| // CM 1.4 / 104.13.2.2 |
| Log.logger.log( LogService.LOG_ERROR, |
| "Cannot remove configuration {0} for {1}: No visibility to configuration bound to {2}", |
| new Object[] |
| { config.getPid(), sr, configLocation } ); |
| } |
| } |
| } |
| } |
| |
| @Override |
| public String toString() |
| { |
| return "Delete: pid=" + config.getPid(); |
| } |
| } |
| |
| private class LocationChanged extends ConfigurationProvider |
| { |
| private final String oldLocation; |
| |
| |
| LocationChanged( ConfigurationImpl config, String oldLocation ) |
| { |
| super( config ); |
| this.oldLocation = oldLocation; |
| } |
| |
| |
| @Override |
| public void run() |
| { |
| List<ServiceReference<?>> srList = this.getHelper().getServices( getTargetedServicePid() ); |
| if ( !srList.isEmpty() ) |
| { |
| for (final ServiceReference<?> sr : srList) |
| { |
| final Bundle srBundle = sr.getBundle(); |
| if ( srBundle == null ) |
| { |
| Log.logger.log( LogService.LOG_DEBUG, |
| "Service {0} seems to be unregistered concurrently (not processing)", new Object[] |
| { sr } ); |
| continue; |
| } |
| |
| final boolean wasVisible = canReceive( srBundle, oldLocation ); |
| final boolean isVisible = canReceive( srBundle, config.getBundleLocation() ); |
| |
| // make sure the config is dynamically bound to the first |
| // service if the config has been unbound causing this update |
| if ( isVisible ) |
| { |
| config.tryBindLocation( Activator.getLocation(srBundle) ); |
| } |
| |
| if ( wasVisible && !isVisible ) |
| { |
| // revoke configuration unless a replacement |
| // configuration can be provided |
| if ( !this.provideReplacement( sr ) ) |
| { |
| this.getHelper().removeConfiguration( sr, this.config.getPid(), this.config.getFactoryPid() ); |
| Log.logger.log( LogService.LOG_DEBUG, "Configuration {0} revoked from {1} (no more visibility)", |
| new Object[] |
| { config.getPid(), sr } ); |
| } |
| } |
| else if ( !wasVisible && isVisible ) |
| { |
| // call updated method |
| this.getHelper().provideConfiguration( sr, this.config.getPid(), this.config.getFactoryPid(), |
| this.properties, this.revision, null ); |
| Log.logger.log( LogService.LOG_DEBUG, "Configuration {0} provided to {1} (new visibility)", new Object[] |
| { config.getPid(), sr } ); |
| } |
| else |
| { |
| // same visibility as before |
| Log.logger.log( LogService.LOG_DEBUG, "Unmodified visibility to configuration {0} for {1}", new Object[] |
| { config.getPid(), sr } ); |
| } |
| } |
| } |
| } |
| |
| |
| @Override |
| public String toString() |
| { |
| return "Location Changed (pid=" + config.getPid() + "): " + oldLocation + " ==> " |
| + config.getBundleLocation(); |
| } |
| } |
| |
| private class FireConfigurationEvent implements Runnable |
| { |
| private final int type; |
| |
| private final String pid; |
| |
| private final String factoryPid; |
| |
| private final ServiceReference[] listenerReferences; |
| |
| private final ConfigurationListener[] listeners; |
| |
| private final Bundle[] listenerProvider; |
| |
| private ConfigurationEvent event; |
| |
| private FireConfigurationEvent( final ServiceTracker listenerTracker, final int type, final String pid, final String factoryPid) |
| { |
| this.type = type; |
| this.pid = pid; |
| this.factoryPid = factoryPid; |
| |
| final ServiceReference[] srs = listenerTracker.getServiceReferences(); |
| if ( srs == null || srs.length == 0 ) |
| { |
| this.listenerReferences = null; |
| this.listeners = null; |
| this.listenerProvider = null; |
| } |
| else |
| { |
| this.listenerReferences = srs; |
| this.listeners = new ConfigurationListener[srs.length]; |
| this.listenerProvider = new Bundle[srs.length]; |
| for ( int i = 0; i < srs.length; i++ ) |
| { |
| this.listeners[i] = ( ConfigurationListener ) listenerTracker.getService( srs[i] ); |
| this.listenerProvider[i] = srs[i].getBundle(); |
| } |
| } |
| } |
| |
| |
| boolean hasConfigurationEventListeners() |
| { |
| return this.listenerReferences != null; |
| } |
| |
| |
| String getTypeName() |
| { |
| switch ( type ) |
| { |
| case ConfigurationEvent.CM_DELETED: |
| return "CM_DELETED"; |
| case ConfigurationEvent.CM_UPDATED: |
| return "CM_UPDATED"; |
| case ConfigurationEvent.CM_LOCATION_CHANGED: |
| return "CM_LOCATION_CHANGED"; |
| default: |
| return "<UNKNOWN(" + type + ")>"; |
| } |
| } |
| |
| |
| @Override |
| public void run() |
| { |
| for ( int i = 0; i < listeners.length; i++ ) |
| { |
| sendEvent( i ); |
| } |
| } |
| |
| |
| @Override |
| public String toString() |
| { |
| return "Fire ConfigurationEvent: pid=" + pid; |
| } |
| |
| |
| private ConfigurationEvent getConfigurationEvent(ServiceReference<ConfigurationAdmin> serviceReference) |
| { |
| if ( event == null ) |
| { |
| this.event = new ConfigurationEvent( serviceReference, type, factoryPid, pid ); |
| } |
| return event; |
| } |
| |
| |
| private void sendEvent( final int serviceIndex ) |
| { |
| if ( (listenerProvider[serviceIndex].getState() & (Bundle.ACTIVE | Bundle.STARTING)) > 0 |
| && this.listeners[serviceIndex] != null ) |
| { |
| Log.logger.log( LogService.LOG_DEBUG, "Sending {0} event for {1} to {2}", new Object[] |
| { getTypeName(), pid, listenerReferences[serviceIndex]} ); |
| |
| final ServiceReference<ConfigurationAdmin> serviceReference = getServiceReference(); |
| |
| if (serviceReference == null) |
| { |
| Log.logger.log( LogService.LOG_WARNING, "No ConfigurationAdmin for delivering configuration event to {0}", new Object[] |
| { listenerReferences[serviceIndex] } ); |
| |
| return; |
| } |
| |
| try |
| { |
| if ( System.getSecurityManager() != null ) |
| { |
| AccessController.doPrivileged( |
| new PrivilegedAction<Object>() |
| { |
| @Override |
| public Void run() |
| { |
| listeners[serviceIndex].configurationEvent(getConfigurationEvent(serviceReference)); |
| return null; |
| } |
| }, BaseTracker.getAccessControlContext(listenerProvider[serviceIndex]) |
| ); |
| } |
| else |
| { |
| listeners[serviceIndex].configurationEvent(getConfigurationEvent(serviceReference)); |
| } |
| } |
| catch ( Throwable t ) |
| { |
| Log.logger.log( LogService.LOG_ERROR, "Unexpected problem delivering configuration event to {0}", new Object[] |
| { listenerReferences[serviceIndex], t } ); |
| } |
| finally |
| { |
| this.listeners[serviceIndex] = null; |
| } |
| } |
| } |
| } |
| |
| public void setCoordinator(final Object service) |
| { |
| this.coordinator = service; |
| } |
| |
| public void updateRegisteredConfigurationPlugins(final String propValue) { |
| final ServiceRegistration<ConfigurationAdmin> localReg = this.configurationAdminRegistration; |
| if (localReg != null) { |
| serviceProperties.put("config.plugins", propValue); |
| localReg.setProperties(serviceProperties); |
| } |
| } |
| } |
| |
