/**
 * 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.usecases;

import javax.jms.Connection;
import javax.jms.Session;
import javax.jms.Topic;
import javax.jms.TopicSubscriber;

import junit.framework.Test;

import org.apache.activemq.EmbeddedBrokerTestSupport;
import org.apache.activemq.broker.BrokerService;
import org.apache.activemq.util.Wait;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

public class DurableSubscriptionRemoveOfflineTest extends EmbeddedBrokerTestSupport {

   private static final Logger LOG = LoggerFactory.getLogger(DurableSubscriptionRemoveOfflineTest.class);

   @Override
   protected void setUp() throws Exception {
      useTopic = true;
      super.setUp();
   }

   @Override
   protected void tearDown() throws Exception {
      super.tearDown();
   }

   @Override
   protected BrokerService createBroker() throws Exception {
      BrokerService answer = super.createBroker();
      answer.setOfflineDurableSubscriberTaskSchedule(3 * 1000);
      answer.setOfflineDurableSubscriberTimeout(5 * 1000);
      answer.setDeleteAllMessagesOnStartup(true);
      return answer;
   }

   protected BrokerService restartBroker() throws Exception {
      broker.stop();
      broker.waitUntilStopped();
      broker = null;

      broker = super.createBroker();
      broker.setOfflineDurableSubscriberTaskSchedule(3 * 1000);
      broker.setOfflineDurableSubscriberTimeout(5 * 1000);

      broker.start();
      broker.waitUntilStarted();

      return broker;
   }

   public void testRemove() throws Exception {
      Connection connection = createConnection();
      connection.setClientID("cliID");
      connection.start();
      Session session = connection.createSession(false, Session.AUTO_ACKNOWLEDGE);
      TopicSubscriber subscriber = session.createDurableSubscriber((Topic) createDestination(), "subName");
      subscriber.close();
      connection.close();

      assertTrue(Wait.waitFor(new Wait.Condition() {
         @Override
         public boolean isSatisified() throws Exception {
            return broker.getAdminView().getInactiveDurableTopicSubscribers().length == 0;
         }
      }, 15000));
   }

   public void testRemoveAfterRestart() throws Exception {
      Connection connection = createConnection();
      connection.setClientID("cliID");
      connection.start();
      Session session = connection.createSession(false, Session.AUTO_ACKNOWLEDGE);
      TopicSubscriber subscriber = session.createDurableSubscriber((Topic) createDestination(), "subName");
      subscriber.close();
      connection.close();

      LOG.info("Broker restarting, wait for inactive cleanup afterwards.");

      restartBroker();

      LOG.info("Broker restarted, wait for inactive cleanup now.");

      assertTrue(broker.getAdminView().getInactiveDurableTopicSubscribers().length == 1);

      assertTrue(Wait.waitFor(new Wait.Condition() {
         @Override
         public boolean isSatisified() throws Exception {
            return broker.getAdminView().getInactiveDurableTopicSubscribers().length == 0;
         }
      }, 20000));
   }

   @Override
   protected boolean isPersistent() {
      return true;
   }

   public static Test suite() {
      return suite(DurableSubscriptionRemoveOfflineTest.class);
   }
}
