/**
 * 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.assertEquals;
import static org.junit.Assert.fail;

import java.io.File;
import java.util.ArrayList;
import java.util.List;
import java.util.concurrent.TimeUnit;
import java.util.concurrent.atomic.AtomicLong;

import javax.jms.Connection;
import javax.jms.ConnectionFactory;
import javax.jms.JMSException;
import javax.jms.Message;
import javax.jms.MessageConsumer;
import javax.jms.MessageListener;
import javax.jms.MessageProducer;
import javax.jms.Session;

import org.apache.activemq.ActiveMQConnectionFactory;
import org.apache.activemq.ScheduledMessage;
import org.apache.activemq.broker.BrokerService;
import org.apache.activemq.util.IOHelper;
import org.junit.After;
import org.junit.Before;
import org.junit.Test;

public class AMQ3140Test {

   private static final int MESSAGES_PER_THREAD = 100;

   private static final int THREAD_COUNT = 10;

   private BrokerService broker;

   private static final String QUEUE_NAME = "test";

   private static class Sender extends Thread {

      private static final int DELAY = 3000;

      @Override
      public void run() {
         try {
            ConnectionFactory cf = new ActiveMQConnectionFactory("vm://localhost");
            Connection connection = cf.createConnection();
            connection.start();
            Session session = connection.createSession(false, Session.AUTO_ACKNOWLEDGE);
            MessageProducer producer = session.createProducer(session.createQueue(QUEUE_NAME));
            Message message = session.createTextMessage("test");
            for (int i = 0; i < MESSAGES_PER_THREAD; i++) {
               message.setLongProperty(ScheduledMessage.AMQ_SCHEDULED_DELAY, DELAY);
               producer.send(message);
            }
            session.close();
            connection.close();
         }
         catch (JMSException e) {
            fail(e.getMessage());
         }
      }
   }

   @Before
   public void setup() throws Exception {
      File schedulerDirectory = new File("target/test/ScheduledDB");

      IOHelper.mkdirs(schedulerDirectory);
      IOHelper.deleteChildren(schedulerDirectory);

      broker = new BrokerService();
      broker.setSchedulerSupport(true);
      broker.setPersistent(true);
      broker.setDeleteAllMessagesOnStartup(true);
      broker.setDataDirectory("target");
      broker.setSchedulerDirectoryFile(schedulerDirectory);
      broker.setUseJmx(false);
      broker.addConnector("vm://localhost");

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

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

   @Test
   public void noMessageLostOnConcurrentScheduling() throws JMSException, InterruptedException {

      final AtomicLong receiveCounter = new AtomicLong();

      ConnectionFactory cf = new ActiveMQConnectionFactory("vm://localhost");
      Connection connection = cf.createConnection();
      connection.start();
      Session session = connection.createSession(false, Session.AUTO_ACKNOWLEDGE);

      MessageConsumer consumer = session.createConsumer(session.createQueue(QUEUE_NAME));
      consumer.setMessageListener(new MessageListener() {

         @Override
         public void onMessage(Message message) {
            receiveCounter.incrementAndGet();
         }
      });

      List<Sender> senderThreads = new ArrayList<Sender>();
      for (int i = 0; i < THREAD_COUNT; i++) {
         Sender sender = new Sender();
         senderThreads.add(sender);
      }
      for (Sender sender : senderThreads) {
         sender.start();
      }
      for (Sender sender : senderThreads) {
         sender.join();
      }

      // wait until all scheduled messages has been received
      TimeUnit.MINUTES.sleep(2);

      session.close();
      connection.close();

      assertEquals(MESSAGES_PER_THREAD * THREAD_COUNT, receiveCounter.get());
   }

}