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.artemis.tests.integration.paging;
  
  import static org.junit.jupiter.api.Assertions.assertEquals;
  import static org.junit.jupiter.api.Assertions.assertTrue;
  
  import javax.jms.Connection;
  import javax.jms.ConnectionFactory;
  import javax.jms.JMSException;
  import javax.jms.Message;
  import javax.jms.MessageConsumer;
  import javax.jms.MessageProducer;
  import javax.jms.Queue;
  import javax.jms.Session;
  import java.util.Collections;
  import java.util.HashSet;
  import java.util.Set;
  import java.util.concurrent.CountDownLatch;
  import java.util.concurrent.CyclicBarrier;
  import java.util.concurrent.ExecutorService;
  import java.util.concurrent.Executors;
  import java.util.concurrent.TimeUnit;
  import java.util.concurrent.atomic.AtomicLong;
  
  import org.apache.activemq.artemis.api.core.TransportConfiguration;
  import org.apache.activemq.artemis.api.jms.ActiveMQJMSClient;
  import org.apache.activemq.artemis.core.remoting.impl.netty.NettyAcceptorFactory;
  import org.apache.activemq.artemis.core.server.ActiveMQServer;
  import org.apache.activemq.artemis.core.settings.impl.AddressFullMessagePolicy;
  import org.apache.activemq.artemis.core.settings.impl.AddressSettings;
  import org.apache.activemq.artemis.tests.util.ActiveMQTestBase;
  import org.apache.activemq.artemis.utils.ActiveMQThreadFactory;
  import org.junit.jupiter.api.AfterEach;
  import org.junit.jupiter.api.BeforeEach;
  import org.junit.jupiter.api.Test;
  
  public class MultipleProducersPagingTest extends ActiveMQTestBase {
  
     private static final int CONSUMER_WAIT_TIME_MS = 250;
     private static final int PRODUCERS = 5;
     private static final long MESSAGES_PER_PRODUCER = 2000;
     private static final long TOTAL_MSG = MESSAGES_PER_PRODUCER * PRODUCERS;
     private ExecutorService executor;
     private CountDownLatch runnersLatch;
     private CyclicBarrier barrierLatch;
  
     private AtomicLong msgReceived;
     private AtomicLong msgSent;
     private final Set<Connection> connections = new HashSet<>();
     private ActiveMQServer server;
     private ConnectionFactory cf;
     private Queue queue;
  
     @Override
     @BeforeEach
     public void setUp() throws Exception {
        super.setUp();
        executor = Executors.newCachedThreadPool(ActiveMQThreadFactory.defaultThreadFactory(getClass().getName()));
  
        server = createServer(createBasicConfig()
                                 .setPersistenceEnabled(false)
                                 .setAddressSettings(Collections.singletonMap("#", new AddressSettings()
                                    .setAddressFullMessagePolicy(AddressFullMessagePolicy.PAGE)
                                    .setPageSizeBytes(50000)
                                    .setMaxSizeBytes(404850)))
                                 .setAcceptorConfigurations(Collections.singleton(new TransportConfiguration(NettyAcceptorFactory.class.getName()))));
  
        server.start();
  
        cf = ActiveMQJMSClient.createConnectionFactory("tcp://127.0.0.1:61616", "cf");
        queue = ActiveMQJMSClient.createQueue("simple");
  
        barrierLatch = new CyclicBarrier(PRODUCERS + 1);
        runnersLatch = new CountDownLatch(PRODUCERS + 1);
        msgReceived = new AtomicLong(0);
        msgSent = new AtomicLong(0);
     }
  
     @Test
     public void testQueue() throws InterruptedException {
        executor.execute(new ConsumerRun());
        for (int i = 0; i < PRODUCERS; i++) {
           executor.execute(new ProducerRun());
        }
        assertTrue(runnersLatch.await(1, TimeUnit.MINUTES), "must take less than a minute to run");
        assertEquals(TOTAL_MSG, msgSent.longValue(), "number sent");
        assertEquals(TOTAL_MSG, msgReceived.longValue(), "number received");
     }
  
     private synchronized Session createSession() throws JMSException {
        Connection connection = cf.createConnection();
        connections.add(connection);
        connection.start();
        return connection.createSession(false, Session.AUTO_ACKNOWLEDGE);
     }
  
     final class ConsumerRun implements Runnable {
  
        @Override
        public void run() {
           try {
              Session session = createSession();
              MessageConsumer consumer = session.createConsumer(queue);
              barrierLatch.await();
              while (true) {
                 Message msg = consumer.receive(CONSUMER_WAIT_TIME_MS);
                 if (msg == null)
                    break;
                 msgReceived.incrementAndGet();
              }
           } catch (Exception e) {
              throw new RuntimeException(e);
           } finally {
              runnersLatch.countDown();
           }
        }
  
     }
  
     final class ProducerRun implements Runnable {
  
        @Override
        public void run() {
           try {
              Session session = createSession();
              MessageProducer producer = session.createProducer(queue);
              barrierLatch.await();
  
              for (int i = 0; i < MESSAGES_PER_PRODUCER; i++) {
                 producer.send(session.createTextMessage(this.hashCode() + " counter " + i));
                 msgSent.incrementAndGet();
              }
           } catch (Exception cause) {
              throw new RuntimeException(cause);
           } finally {
              runnersLatch.countDown();
           }
        }
     }
  
     @Override
     @AfterEach
     public void tearDown() throws Exception {
        executor.shutdown();
        for (Connection conn : connections) {
           conn.close();
        }
        connections.clear();
        if (server != null)
           server.stop();
        super.tearDown();
     }
  }
  