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.client;
  
  import static org.junit.jupiter.api.Assertions.assertEquals;
  import static org.junit.jupiter.api.Assertions.assertTrue;
  
  import java.util.ArrayList;
  import java.util.List;
  import java.util.concurrent.CountDownLatch;
  import java.util.concurrent.TimeUnit;
  
  import org.apache.activemq.artemis.api.core.ActiveMQException;
  import org.apache.activemq.artemis.api.core.QueueConfiguration;
  import org.apache.activemq.artemis.api.core.SimpleString;
  import org.apache.activemq.artemis.api.core.client.ClientConsumer;
  import org.apache.activemq.artemis.api.core.client.ClientMessage;
  import org.apache.activemq.artemis.api.core.client.ClientProducer;
  import org.apache.activemq.artemis.api.core.client.ClientSession;
  import org.apache.activemq.artemis.api.core.client.ClientSessionFactory;
  import org.apache.activemq.artemis.api.core.client.MessageHandler;
  import org.apache.activemq.artemis.api.core.client.ServerLocator;
  import org.apache.activemq.artemis.core.server.ActiveMQServer;
  import org.apache.activemq.artemis.core.server.ActiveMQServers;
  import org.apache.activemq.artemis.tests.util.ActiveMQTestBase;
  import org.junit.jupiter.api.BeforeEach;
  import org.junit.jupiter.api.Test;
  
  public class MessageGroupingConnectionFactoryTest extends ActiveMQTestBase {
  
     private ActiveMQServer server;
  
     private ClientSession clientSession;
  
     private final SimpleString qName = SimpleString.of("MessageGroupingTestQueue");
  
     @Test
     public void testBasicGroupingUsingConnection() throws Exception {
        doTestBasicGroupingUsingConnectionFactory();
     }
  
     @Test
     public void testBasicGroupingMultipleProducers() throws Exception {
        doTestBasicGroupingMultipleProducers();
     }
  
     private void doTestBasicGroupingUsingConnectionFactory() throws Exception {
        ClientProducer clientProducer = clientSession.createProducer(qName);
        ClientConsumer consumer = clientSession.createConsumer(qName);
        ClientConsumer consumer2 = clientSession.createConsumer(qName);
        clientSession.start();
  
        int numMessages = 100;
        for (int i = 0; i < numMessages; i++) {
           ClientMessage message = createTextMessage(clientSession, "m" + i);
           clientProducer.send(message);
        }
        CountDownLatch latch = new CountDownLatch(numMessages);
        DummyMessageHandler dummyMessageHandler = new DummyMessageHandler(latch, true);
        consumer.setMessageHandler(dummyMessageHandler);
        DummyMessageHandler dummyMessageHandler2 = new DummyMessageHandler(latch, true);
        consumer2.setMessageHandler(dummyMessageHandler2);
        assertTrue(latch.await(10, TimeUnit.SECONDS));
        assertEquals(100, dummyMessageHandler.list.size());
        assertEquals(0, dummyMessageHandler2.list.size());
        consumer.close();
        consumer2.close();
     }
  
     private void doTestBasicGroupingMultipleProducers() throws Exception {
        ClientProducer clientProducer = clientSession.createProducer(qName);
        ClientProducer clientProducer2 = clientSession.createProducer(qName);
        ClientProducer clientProducer3 = clientSession.createProducer(qName);
        ClientConsumer consumer = clientSession.createConsumer(qName);
        ClientConsumer consumer2 = clientSession.createConsumer(qName);
        clientSession.start();
  
        int numMessages = 100;
        for (int i = 0; i < numMessages; i++) {
           ClientMessage message = createTextMessage(clientSession, "m" + i);
           clientProducer.send(message);
           clientProducer2.send(message);
           clientProducer3.send(message);
        }
        CountDownLatch latch = new CountDownLatch(numMessages * 3);
        DummyMessageHandler dummyMessageHandler = new DummyMessageHandler(latch, true);
        consumer.setMessageHandler(dummyMessageHandler);
        DummyMessageHandler dummyMessageHandler2 = new DummyMessageHandler(latch, true);
        consumer2.setMessageHandler(dummyMessageHandler2);
        assertTrue(latch.await(10, TimeUnit.SECONDS));
        assertEquals(300, dummyMessageHandler.list.size());
        assertEquals(0, dummyMessageHandler2.list.size());
        consumer.close();
        consumer2.close();
     }
  
     @Override
     @BeforeEach
     public void setUp() throws Exception {
        super.setUp();
        server = addServer(ActiveMQServers.newActiveMQServer(createDefaultInVMConfig(), false));
        server.start();
        ServerLocator locator = createInVMNonHALocator().setGroupID("grp1");
        ClientSessionFactory sessionFactory = createSessionFactory(locator);
        clientSession = addClientSession(sessionFactory.createSession(false, true, true));
        clientSession.createQueue(QueueConfiguration.of(qName).setDurable(false));
     }
  
     private static class DummyMessageHandler implements MessageHandler {
  
        List<ClientMessage> list = new ArrayList<>();
  
        private final CountDownLatch latch;
  
        private final boolean acknowledge;
  
        private DummyMessageHandler(final CountDownLatch latch, final boolean acknowledge) {
           this.latch = latch;
           this.acknowledge = acknowledge;
        }
  
        @Override
        public void onMessage(final ClientMessage message) {
           list.add(message);
           if (acknowledge) {
              try {
                 message.acknowledge();
              } catch (ActiveMQException e) {
                 // ignore
              }
           }
           latch.countDown();
        }
     }
  }
  