content: /**
   * 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.aries.blueprint.compendium.cm;
  
  import java.util.Dictionary;
  import java.util.HashSet;
  import java.util.Properties;
  import java.util.Set;
  
  import org.apache.aries.blueprint.ServiceProcessor;
  import org.apache.aries.blueprint.services.ExtendedBlueprintContainer;
  import org.apache.aries.blueprint.utils.JavaUtils;
  import org.osgi.framework.Bundle;
  import org.osgi.framework.Constants;
  import org.osgi.service.cm.ConfigurationAdmin;
  import org.slf4j.Logger;
  import org.slf4j.LoggerFactory;
  
  /**
   * @version $Rev$, $Date$
   */
  public class CmProperties implements ManagedObject, ServiceProcessor {
  
      private static final Logger LOGGER = LoggerFactory.getLogger(CmProperties.class);
  
      private ExtendedBlueprintContainer blueprintContainer;
      private ConfigurationAdmin configAdmin;
      private ManagedObjectManager managedObjectManager;
      private String persistentId;
      private boolean update;
      private String serviceId;
  
      private final Object lock = new Object();
      private final Set<ServicePropertiesUpdater> services = new HashSet<ServicePropertiesUpdater>();
      private final Properties properties = new Properties();
      private boolean initialized;
  
      public ExtendedBlueprintContainer getBlueprintContainer() {
          return blueprintContainer;
      }
  
      public void setBlueprintContainer(ExtendedBlueprintContainer blueprintContainer) {
          this.blueprintContainer = blueprintContainer;
      }
  
      public ConfigurationAdmin getConfigAdmin() {
          return configAdmin;
      }
  
      public void setConfigAdmin(ConfigurationAdmin configAdmin) {
          this.configAdmin = configAdmin;
      }
  
      public void setManagedObjectManager(ManagedObjectManager managedObjectManager) {
          this.managedObjectManager = managedObjectManager;
      }
      
      public ManagedObjectManager getManagedObjectManager() {
          return managedObjectManager;
      }
      
      public Bundle getBundle() {
          return blueprintContainer.getBundleContext().getBundle();
      }
      
      public String getPersistentId() {
          return persistentId;
      }
  
      public void setPersistentId(String persistentId) {
          this.persistentId = persistentId;
      }
  
      public boolean getUpdate() {
          return update;
      }
  
      public void setUpdate(boolean update) {
          this.update = update;
      }
  
      public String getServiceId() {
          return serviceId;
      }
  
      public void setServiceId(String serviceId) {
          this.serviceId = serviceId;
      }
      
      public void init() throws Exception {
          if (serviceId != null) {
              LOGGER.debug("Initializing CmProperties for service={} / pid={}", serviceId, persistentId);
          } else {
              LOGGER.debug("Initializing CmProperties for pid={}", persistentId);
          }
          
          Properties props = new Properties();
          props.put(Constants.SERVICE_PID, persistentId);
          Bundle bundle = blueprintContainer.getBundleContext().getBundle();
          props.put(Constants.BUNDLE_SYMBOLICNAME, bundle.getSymbolicName());
          props.put(Constants.BUNDLE_VERSION, bundle.getHeaders().get(Constants.BUNDLE_VERSION));
                  
          synchronized (lock) {
              managedObjectManager.register(this, props);
          }
      }
  
      public void destroy() {
          managedObjectManager.unregister(this);
      }
  
      public Properties getProperties() {
          return properties;
      }
  
      public void updated(Dictionary props) {
          if (initialized) {
              if (serviceId != null) {
                  LOGGER.debug("Service properties updated for service={} / pid={}, {}", new Object[]{serviceId, persistentId, props});
              } else {
                  LOGGER.debug("Service properties updated for pid={}, {}", new Object[]{persistentId, props});
              }
          }
          
          synchronized (lock) {
              properties.clear();
              if (props != null) {
                  JavaUtils.copy(properties, props);
              }
              if (!initialized) {
                  initialized = true;
              } else if (update) {
                  for (ServicePropertiesUpdater service : services) {
                      service.updateProperties(props);
                  }
              }
          }
      }
  
      public void updateProperties(ServicePropertiesUpdater service, Dictionary props) {
          if (this.serviceId == null || !this.serviceId.equals(service.getId())) {
              return;
          }
                  
          LOGGER.debug("Service properties initialized for service={} / pid={}, {}", new Object[] {serviceId, persistentId, props});
          
          synchronized (lock) {
              services.add(service);
              JavaUtils.copy(props, properties);
          }
      }
  
  }
  