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.activemq.broker.region;
  
  import java.io.IOException;
  import java.util.Set;
  import org.apache.activemq.advisory.AdvisorySupport;
  import org.apache.activemq.broker.BrokerService;
  import org.apache.activemq.broker.ConnectionContext;
  import org.apache.activemq.broker.region.policy.PolicyEntry;
  import org.apache.activemq.command.ActiveMQDestination;
  import org.apache.activemq.command.ActiveMQQueue;
  import org.apache.activemq.command.ActiveMQTempDestination;
  import org.apache.activemq.command.ActiveMQTopic;
  import org.apache.activemq.command.SubscriptionInfo;
  import org.apache.activemq.store.MessageStore;
  import org.apache.activemq.store.PersistenceAdapter;
  import org.apache.activemq.store.TopicMessageStore;
  import org.apache.activemq.thread.TaskRunnerFactory;
  
  /**
   * Creates standard ActiveMQ implementations of
   * {@link org.apache.activemq.broker.region.Destination}.
   * 
   * @author fateev@amazon.com
   * 
   */
  public class DestinationFactoryImpl extends DestinationFactory {
  
      protected final TaskRunnerFactory taskRunnerFactory;
      protected final PersistenceAdapter persistenceAdapter;
      protected RegionBroker broker;
      private final BrokerService brokerService;
  
      public DestinationFactoryImpl(BrokerService brokerService, TaskRunnerFactory taskRunnerFactory, PersistenceAdapter persistenceAdapter) {
          this.brokerService = brokerService;
          this.taskRunnerFactory = taskRunnerFactory;
          if (persistenceAdapter == null) {
              throw new IllegalArgumentException("null persistenceAdapter");
          }
          this.persistenceAdapter = persistenceAdapter;
      }
  
      @Override
      public void setRegionBroker(RegionBroker broker) {
          if (broker == null) {
              throw new IllegalArgumentException("null broker");
          }
          this.broker = broker;
      }
  
      @Override
      public Set<ActiveMQDestination> getDestinations() {
          return persistenceAdapter.getDestinations();
      }
  
      /**
       * @return instance of {@link Queue} or {@link Topic}
       */
      @Override
      public Destination createDestination(ConnectionContext context, ActiveMQDestination destination, DestinationStatistics destinationStatistics) throws Exception {
          if (destination.isQueue()) {
              if (destination.isTemporary()) {
                  final ActiveMQTempDestination tempDest = (ActiveMQTempDestination)destination;
                  Queue queue = new TempQueue(brokerService, destination, null, destinationStatistics, taskRunnerFactory);
                  configureQueue(queue, destination);
                  queue.initialize();
                  return queue;
              } else {
                  MessageStore store = persistenceAdapter.createQueueMessageStore((ActiveMQQueue)destination);
                  Queue queue = new Queue(brokerService, destination, store, destinationStatistics, taskRunnerFactory);
                  configureQueue(queue, destination);
                  queue.initialize();
                  return queue;
              }
          } else if (destination.isTemporary()) {
              
              Topic topic = new Topic(brokerService, destination, null, destinationStatistics, taskRunnerFactory);
              configureTopic(topic, destination);
              topic.initialize();
              return topic;
          } else {
              TopicMessageStore store = null;
              if (!AdvisorySupport.isAdvisoryTopic(destination)) {
                  store = persistenceAdapter.createTopicMessageStore((ActiveMQTopic)destination);
              }
              Topic topic = new Topic(brokerService, destination, store, destinationStatistics, taskRunnerFactory);
              configureTopic(topic, destination);
              topic.initialize();
              return topic;
          }
      }
  
      @Override
      public void removeDestination(Destination dest) {
          ActiveMQDestination destination = dest.getActiveMQDestination();
          if (!destination.isTemporary()) {
              if (destination.isQueue()) {
                  persistenceAdapter.removeQueueMessageStore((ActiveMQQueue) destination);
              }
              else if (!AdvisorySupport.isAdvisoryTopic(destination)) {
                  persistenceAdapter.removeTopicMessageStore((ActiveMQTopic) destination);
              }
          }
      }
  
      protected void configureQueue(Queue queue, ActiveMQDestination destination) {
          if (broker == null) {
              throw new IllegalStateException("broker property is not set");
          }
          if (broker.getDestinationPolicy() != null) {
              PolicyEntry entry = broker.getDestinationPolicy().getEntryFor(destination);
              if (entry != null) {
                  entry.configure(broker,queue);
              }
          }
      }
  
      protected void configureTopic(Topic topic, ActiveMQDestination destination) {
          if (broker == null) {
              throw new IllegalStateException("broker property is not set");
          }
          if (broker.getDestinationPolicy() != null) {
              PolicyEntry entry = broker.getDestinationPolicy().getEntryFor(destination);
              if (entry != null) {
                  entry.configure(broker,topic);
              }
          }
      }
  
      @Override
      public long getLastMessageBrokerSequenceId() throws IOException {
          return persistenceAdapter.getLastMessageBrokerSequenceId();
      }
  
      public PersistenceAdapter getPersistenceAdapter() {
          return persistenceAdapter;
      }
  
      @Override
      public SubscriptionInfo[] getAllDurableSubscriptions(ActiveMQTopic topic) throws IOException {
          return persistenceAdapter.createTopicMessageStore(topic).getAllSubscriptions();
      }
  }
  