/**
 * 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.bugs;

import java.util.Properties;

import javax.jms.Connection;
import javax.jms.ConnectionFactory;
import javax.jms.Destination;
import javax.jms.JMSException;
import javax.jms.MessageConsumer;
import javax.jms.Session;
import javax.naming.Context;
import javax.naming.InitialContext;
import javax.naming.NamingException;

import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertNotNull;
import static org.junit.Assert.fail;

import org.apache.activemq.ActiveMQConnectionFactory;
import org.apache.activemq.broker.BrokerService;
import org.junit.After;
import org.junit.Before;
import org.junit.Test;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

public class AMQ3529Test {

   private static Logger LOG = LoggerFactory.getLogger(AMQ3529Test.class);

   private ConnectionFactory connectionFactory;
   private Connection connection;
   private Session session;
   private BrokerService broker;
   private String connectionUri;
   private MessageConsumer consumer;
   private Context ctx = null;

   @Before
   public void startBroker() throws Exception {
      broker = new BrokerService();
      broker.setDeleteAllMessagesOnStartup(true);
      broker.setPersistent(false);
      broker.setUseJmx(false);
      broker.addConnector("tcp://0.0.0.0:0");
      broker.start();
      broker.waitUntilStarted();

      connectionUri = broker.getTransportConnectors().get(0).getPublishableConnectString();

      connectionFactory = new ActiveMQConnectionFactory(connectionUri);
   }

   @After
   public void stopBroker() throws Exception {
      broker.stop();
      broker.waitUntilStopped();
   }

   @Test(timeout = 60000)
   public void testInterruptionAffects() throws Exception {
      ThreadGroup tg = new ThreadGroup("tg");

      assertEquals(0, tg.activeCount());

      Thread client = new Thread(tg, "client") {

         @Override
         public void run() {
            try {
               connection = connectionFactory.createConnection();
               session = connection.createSession(false, Session.AUTO_ACKNOWLEDGE);
               assertNotNull(session);

               Properties props = new Properties();
               props.setProperty(Context.INITIAL_CONTEXT_FACTORY, "org.apache.activemq.jndi.ActiveMQInitialContextFactory");
               props.setProperty(Context.PROVIDER_URL, "tcp://0.0.0.0:0");
               ctx = null;
               try {
                  ctx = new InitialContext(props);
               }
               catch (NoClassDefFoundError e) {
                  throw new NamingException(e.toString());
               }
               catch (Exception e) {
                  throw new NamingException(e.toString());
               }
               Destination destination = (Destination) ctx.lookup("dynamicTopics/example.C");
               consumer = session.createConsumer(destination);
               consumer.receive(10000);
            }
            catch (Exception e) {
               // Expect an exception here from the interrupt.
            }
            finally {
               // next line is the nature of the test, if I remove this
               // line, everything works OK
               try {
                  consumer.close();
               }
               catch (JMSException e) {
                  fail("Consumer Close failed with" + e.getMessage());
               }
               try {
                  session.close();
               }
               catch (JMSException e) {
                  fail("Session Close failed with" + e.getMessage());
               }
               try {
                  connection.close();
               }
               catch (JMSException e) {
                  fail("Connection Close failed with" + e.getMessage());
               }
               try {
                  ctx.close();
               }
               catch (Exception e) {
                  fail("Connection Close failed with" + e.getMessage());
               }
            }
         }
      };
      client.start();
      Thread.sleep(5000);
      client.interrupt();
      client.join();
      Thread.sleep(2000);
      Thread[] remainThreads = new Thread[tg.activeCount()];
      tg.enumerate(remainThreads);
      for (Thread t : remainThreads) {
         if (t.isAlive() && !t.isDaemon())
            fail("Remaining thread: " + t.toString());
      }

      ThreadGroup root = Thread.currentThread().getThreadGroup().getParent();
      while (root.getParent() != null) {
         root = root.getParent();
      }
      visit(root, 0);
   }

   // This method recursively visits all thread groups under `group'.
   public static void visit(ThreadGroup group, int level) {
      // Get threads in `group'
      int numThreads = group.activeCount();
      Thread[] threads = new Thread[numThreads * 2];
      numThreads = group.enumerate(threads, false);

      // Enumerate each thread in `group'
      for (int i = 0; i < numThreads; i++) {
         // Get thread
         Thread thread = threads[i];
         LOG.debug("Thread:" + thread.getName() + " is still running");
      }

      // Get thread subgroups of `group'
      int numGroups = group.activeGroupCount();
      ThreadGroup[] groups = new ThreadGroup[numGroups * 2];
      numGroups = group.enumerate(groups, false);

      // Recursively visit each subgroup
      for (int i = 0; i < numGroups; i++) {
         visit(groups[i], level + 1);
      }
   }
}
