/**
 * 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 static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertTrue;

import java.util.concurrent.CountDownLatch;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;
import java.util.concurrent.TimeUnit;

import javax.jms.Connection;
import javax.jms.ConnectionFactory;
import javax.jms.JMSException;
import javax.jms.MessageConsumer;
import javax.jms.Session;

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

public class AMQ3932Test {

   static final Logger LOG = LoggerFactory.getLogger(AMQ3932Test.class);
   private Connection connection;
   private BrokerService broker;

   @Before
   public void setUp() throws Exception {
      broker = new BrokerService();
      broker.setPersistent(false);
      broker.setUseJmx(false);
      TransportConnector tcpConnector = broker.addConnector("tcp://localhost:0");
      broker.start();

      ConnectionFactory factory = new ActiveMQConnectionFactory("failover:(" + tcpConnector.getPublishableConnectString() + ")?jms.prefetchPolicy.queuePrefetch=0");
      connection = factory.createConnection();
      connection.start();
   }

   @After
   public void tearDown() throws Exception {
      connection.close();

      if (broker != null) {
         broker.stop();
         broker.waitUntilStopped();
         broker = null;
      }
   }

   @Test
   public void testPlainReceiveBlocks() throws Exception {
      Session session = connection.createSession(false, Session.AUTO_ACKNOWLEDGE);
      final MessageConsumer consumer = session.createConsumer(session.createQueue(getClass().getName()));

      broker.stop();
      broker.waitUntilStopped();
      broker = null;

      final CountDownLatch done = new CountDownLatch(1);
      final CountDownLatch started = new CountDownLatch(1);
      ExecutorService executor = Executors.newSingleThreadExecutor();

      executor.execute(new Runnable() {
         public void run() {
            try {
               started.countDown();
               LOG.info("Entering into a Sync receive call");
               consumer.receive();
            }
            catch (JMSException e) {
            }
            done.countDown();
         }
      });

      assertTrue(started.await(10, TimeUnit.SECONDS));
      assertFalse(done.await(20, TimeUnit.SECONDS));
   }

   @Test
   public void testHungReceiveNoWait() throws Exception {
      Session session = connection.createSession(false, Session.AUTO_ACKNOWLEDGE);
      final MessageConsumer consumer = session.createConsumer(session.createQueue(getClass().getName()));

      broker.stop();
      broker.waitUntilStopped();
      broker = null;

      final CountDownLatch done = new CountDownLatch(1);
      final CountDownLatch started = new CountDownLatch(1);
      ExecutorService executor = Executors.newSingleThreadExecutor();

      executor.execute(new Runnable() {
         public void run() {
            try {
               started.countDown();
               LOG.info("Entering into a Sync receiveNoWait call");
               consumer.receiveNoWait();
            }
            catch (JMSException e) {
            }
            done.countDown();
         }
      });

      assertTrue(started.await(10, TimeUnit.SECONDS));
      assertTrue(done.await(20, TimeUnit.SECONDS));
   }

   @Test
   public void testHungReceiveTimed() throws Exception {
      Session session = connection.createSession(false, Session.AUTO_ACKNOWLEDGE);
      final MessageConsumer consumer = session.createConsumer(session.createQueue(getClass().getName()));

      broker.stop();
      broker.waitUntilStopped();
      broker = null;

      final CountDownLatch done = new CountDownLatch(1);
      final CountDownLatch started = new CountDownLatch(1);
      ExecutorService executor = Executors.newSingleThreadExecutor();

      executor.execute(new Runnable() {
         public void run() {
            try {
               started.countDown();
               LOG.info("Entering into a timed Sync receive call");
               consumer.receive(10);
            }
            catch (JMSException e) {
            }
            done.countDown();
         }
      });

      assertTrue(started.await(10, TimeUnit.SECONDS));
      assertTrue(done.await(20, TimeUnit.SECONDS));
   }
}