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.leak;
  
  import javax.jms.Connection;
  import javax.jms.ConnectionFactory;
  import javax.jms.JMSException;
  import javax.jms.MessageConsumer;
  import javax.jms.MessageProducer;
  import javax.jms.Session;
  import javax.jms.TextMessage;
  import java.util.ArrayList;
  import java.util.List;
  import java.util.concurrent.Executor;
  import java.util.concurrent.ExecutorService;
  import java.util.concurrent.Executors;
  
  import io.github.checkleak.core.CheckLeak;
  import org.apache.activemq.artemis.api.core.ActiveMQException;
  import org.apache.activemq.artemis.api.core.QueueConfiguration;
  import org.apache.activemq.artemis.api.core.RoutingType;
  import org.apache.activemq.artemis.core.protocol.core.impl.RemotingConnectionImpl;
  import org.apache.activemq.artemis.core.remoting.server.impl.RemotingServiceImpl;
  import org.apache.activemq.artemis.core.server.ActiveMQServer;
  import org.apache.activemq.artemis.core.server.Queue;
  import org.apache.activemq.artemis.core.server.impl.ActiveMQServerImpl;
  import org.apache.activemq.artemis.core.server.impl.AddressInfo;
  import org.apache.activemq.artemis.core.server.impl.ServerStatus;
  import org.apache.activemq.artemis.tests.util.CFUtil;
  import org.apache.activemq.artemis.utils.SpawnedVMSupport;
  import org.apache.activemq.artemis.utils.Wait;
  import org.junit.jupiter.api.AfterEach;
  import org.junit.jupiter.api.BeforeAll;
  import org.junit.jupiter.api.BeforeEach;
  import org.junit.jupiter.api.Test;
  
  import static org.apache.activemq.artemis.tests.leak.MemoryAssertions.assertMemory;
  import static org.apache.activemq.artemis.tests.leak.MemoryAssertions.basicMemoryAsserts;
  import static org.junit.jupiter.api.Assumptions.assumeTrue;
  
  public class ConnectionExitTest extends AbstractLeakTest {
  
     private static final String EXIT_TEXT = "EXIT";
  
     private static ConnectionFactory createConnectionFactory(String protocol) {
        return CFUtil.createConnectionFactory(protocol, "tcp://localhost:61616");
     }
  
     private static final String QUEUE_NAME = "QUEUE_DROP";
  
     ActiveMQServer server;
  
     Queue serverQueue;
  
     @BeforeAll
     public static void beforeClass() throws Exception {
        assumeTrue(CheckLeak.isLoaded());
     }
  
     @AfterEach
     public void validateServer() throws Exception {
        CheckLeak checkLeak = new CheckLeak();
  
        // I am doing this check here because the test method might hold a client connection
        // so this check has to be done after the test, and before the server is stopped
        assertMemory(checkLeak, 0, RemotingConnectionImpl.class.getName());
  
        server.stop();
  
        server = null;
        serverQueue = null;
  
        clearServers();
        ServerStatus.clear();
  
        assertMemory(checkLeak, 0, ActiveMQServerImpl.class.getName());
     }
  
     @Override
     @BeforeEach
     public void setUp() throws Exception {
        server = createServer(false, createDefaultConfig(1, true));
        server.getConfiguration().clearAcceptorConfigurations();
        server.getConfiguration().addAcceptorConfiguration("server", "tcp://localhost:61616?maxInactivityDuration=1000");
        server.start();
        server.addAddressInfo(new AddressInfo(QUEUE_NAME).addRoutingType(RoutingType.ANYCAST));
  
        serverQueue = server.createQueue(QueueConfiguration.of(QUEUE_NAME).setAddress(QUEUE_NAME).setRoutingType(RoutingType.ANYCAST).setDurable(true));
     }
  
     @Test
     public void testDropConnectionsOPENWIRE_ExitClient() throws Exception {
        doDropConnections("OPENWIRE", true);
     }
  
     @Test
     public void testDropConnectionsOPENWIRE_ExceptionRaised() throws Exception {
        doDropConnections("OPENWIRE", true);
     }
  
     @Test
     public void testDropConnectionsAMQP_ExitClient() throws Exception {
        doDropConnections("AMQP", true);
     }
  
     @Test
     public void testDropConnectionsAMQP_ExceptionRaised() throws Exception {
        doDropConnections("AMQP", false);
     }
  
     @Test
     public void testDropConnectionsCORE_ExitClient() throws Exception {
        doDropConnections("CORE", true);
     }
  
     @Test
     public void testDropConnectionsCORE() throws Exception {
        doDropConnections("CORE", false);
     }
  
     private void doDropConnections(String protocol, boolean exitClient) throws Exception {
  
        int numberOfConnections = 1;
  
        Process process = SpawnedVMSupport.spawnVM(ConnectionExitTest.class.getName(), protocol, String.valueOf(numberOfConnections), String.valueOf(exitClient));
        runAfter(process::destroyForcibly);
  
        try {
  
           Wait.assertEquals(numberOfConnections, () -> server.getRemotingService().getConnections().size());
  
           Executor testFailureExecutor = server.getExecutorFactory().getExecutor();
  
           if (exitClient) {
              sendExit(protocol);
           } else {
              server.getRemotingService().getConnections().forEach(r -> {
                 testFailureExecutor.execute(() -> {
                    ((RemotingServiceImpl) server.getRemotingService()).connectionException(r.getTransportConnection().getID(), new ActiveMQException("Ooops!!!! my Bad!!!! @#$@#$@#$@"));
                 });
              });
           }
  
           Wait.assertEquals(0, () -> server.getRemotingService().getConnections().size(), 60_000);
  
           basicMemoryAsserts();
        } finally {
           process.destroyForcibly();
        }
     }
  
     // needs to be a sub-method to clear references and have check-leak not counting these
     private static void sendExit(String protocol) throws JMSException {
        ConnectionFactory factory = createConnectionFactory(protocol);
        try (Connection connection = factory.createConnection()) {
           Session session = connection.createSession(false, Session.AUTO_ACKNOWLEDGE);
           MessageProducer producer = session.createProducer(session.createQueue(QUEUE_NAME));
           producer.send(session.createTextMessage(EXIT_TEXT));
        }
     }
  
     public static void main(String[] arg) {
  
        String protocol = arg[0];
        int numberOfConnections = Integer.parseInt(arg[1]);
  
        class ClientThread implements Runnable {
  
           Connection connection;
           Session session;
           MessageConsumer consumer;
  
           ClientThread(ConnectionFactory factory) throws Exception {
              connection = factory.createConnection();
              session = connection.createSession(false, Session.AUTO_ACKNOWLEDGE);
              consumer = session.createConsumer(session.createQueue(QUEUE_NAME));
              connection.start();
           }
  
           @Override
           public void run() {
              try {
                 while (true) {
                    TextMessage message = (TextMessage) consumer.receive(5000);
                    if (message != null && message.getText().equals(EXIT_TEXT)) {
                       System.exit(-1);
                    }
                 }
              } catch (Exception e) {
                 e.printStackTrace(System.out);
              }
           }
  
        }
  
        List<ClientThread> clients = new ArrayList<>(numberOfConnections);
  
        ConnectionFactory connectionFactory = createConnectionFactory(protocol);
  
        ExecutorService service = Executors.newFixedThreadPool(numberOfConnections);
  
        try {
           for (int i = 0; i < numberOfConnections; i++) {
              ClientThread cThread = new ClientThread(connectionFactory);
              clients.add(cThread);
           }
  
           for (ClientThread t : clients) {
              service.execute(t);
           }
        } catch (Throwable e) {
           e.printStackTrace();
           System.exit(-1);
        }
     }
  }