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 jakarta.jms.JMSException;
  
  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.ConsumerInfo;
  import org.apache.activemq.thread.TaskRunnerFactory;
  import org.apache.activemq.usage.SystemUsage;
  import org.slf4j.Logger;
  import org.slf4j.LoggerFactory;
  
  /**
   * 
   */
  public class TempTopicRegion extends AbstractTempRegion {
  
      private static final Logger LOG = LoggerFactory.getLogger(TempTopicRegion.class);
  
      public TempTopicRegion(RegionBroker broker, DestinationStatistics destinationStatistics, SystemUsage memoryManager, TaskRunnerFactory taskRunnerFactory,
                             DestinationFactory destinationFactory) {
          super(broker, destinationStatistics, memoryManager, taskRunnerFactory, destinationFactory);
      }
  
      protected Subscription createSubscription(ConnectionContext context, ConsumerInfo info) throws JMSException {
          if (info.isDurable()) {
              throw new JMSException("A durable subscription cannot be created for a temporary topic.");
          }
          try {
              TopicSubscription answer = new TopicSubscription(broker, context, info, usageManager);
              // lets configure the subscription depending on the destination
              ActiveMQDestination destination = info.getDestination();
              if (destination != null && broker.getDestinationPolicy() != null) {
                  PolicyEntry entry = broker.getDestinationPolicy().getEntryFor(destination);
                  if (entry != null) {
                      entry.configure(broker, usageManager, answer);
                  }
              }
              answer.init();
              return answer;
          } catch (Exception e) {
              LOG.error("Failed to create TopicSubscription ", e);
              JMSException jmsEx = new JMSException("Couldn't create TopicSubscription");
              jmsEx.setLinkedException(e);
              throw jmsEx;
          }
      }
  
      public String toString() {
          return "TempTopicRegion: destinations=" + destinations.size() + ", subscriptions=" + subscriptions.size() + ", memory=" + usageManager.getMemoryUsage().getPercentUsage() + "%";
      }
  
      public void removeDestination(ConnectionContext context, ActiveMQDestination destination, long timeout) throws Exception {
  
          // Force a timeout value so that we don't get an error that
          // there is still an active sub. Temp destination may be removed
          // while a network sub is still active which is valid.
          if (timeout == 0) {
              timeout = 1;
          }
  
          super.removeDestination(context, destination, timeout);
      }
  
  }
  