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 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.Assertions.assertEquals;
  import static org.junit.jupiter.api.Assertions.assertNotNull;
  import static org.junit.jupiter.api.Assertions.assertTrue;
  import static org.junit.jupiter.api.Assumptions.assumeTrue;
  
  import javax.jms.BytesMessage;
  import javax.jms.Connection;
  import javax.jms.ConnectionFactory;
  import javax.jms.Message;
  import javax.jms.MessageConsumer;
  import javax.jms.MessageProducer;
  import javax.jms.Session;
  import java.lang.invoke.MethodHandles;
  import java.util.concurrent.CountDownLatch;
  import java.util.concurrent.ExecutorService;
  import java.util.concurrent.Executors;
  import java.util.concurrent.TimeUnit;
  import java.util.concurrent.atomic.AtomicInteger;
  
  import io.github.checkleak.core.CheckLeak;
  import org.apache.activemq.artemis.core.journal.impl.JournalFileImpl;
  import org.apache.activemq.artemis.core.journal.impl.JournalImpl;
  import org.apache.activemq.artemis.core.persistence.impl.journal.JournalStorageManager;
  import org.apache.activemq.artemis.core.protocol.core.impl.RemotingConnectionImpl;
  import org.apache.activemq.artemis.core.server.ActiveMQServer;
  import org.apache.activemq.artemis.core.server.impl.ActiveMQServerImpl;
  import org.apache.activemq.artemis.core.server.impl.ServerStatus;
  import org.apache.activemq.artemis.tests.util.CFUtil;
  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 org.slf4j.Logger;
  import org.slf4j.LoggerFactory;
  
  /*
   * At the time this test was written JournalFileImpl was leaking through JournalFileImpl::negative creating a linked
   * list (or leaked-list, pun intended)
   */
  public class JournalLeakTest extends AbstractLeakTest {
  
     private static final Logger logger = LoggerFactory.getLogger(MethodHandles.lookup().lookupClass());
  
     ActiveMQServer server;
  
     @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;
  
        clearServers();
        ServerStatus.clear();
  
        assertMemory(checkLeak, 0, ActiveMQServerImpl.class.getName());
     }
  
     @Override
     @BeforeEach
     public void setUp() throws Exception {
        server = createServer(true, createDefaultConfig(1, true));
        server.getConfiguration().setJournalPoolFiles(4).setJournalMinFiles(2);
        server.start();
     }
  
     @Test
     public void testAMQP() throws Exception {
        doTest("AMQP");
     }
  
     @Test
     public void testCore() throws Exception {
        doTest("CORE");
     }
  
     @Test
     public void testOpenWire() throws Exception {
        doTest("OPENWIRE");
     }
  
     private void doTest(String protocol) throws Exception {
        int MESSAGES = 10000;
        int MESSAGE_SIZE = 104;
        basicMemoryAsserts();
  
        ExecutorService executorService = Executors.newFixedThreadPool(2);
        runAfter(executorService::shutdownNow);
  
        ConnectionFactory cf = CFUtil.createConnectionFactory(protocol, "tcp://localhost:61616");
  
        final AtomicInteger errors = new AtomicInteger(0);
        CountDownLatch done = new CountDownLatch(2);
  
        executorService.execute(() -> {
           try {
              try (Connection connection = cf.createConnection()) {
                 Session session = connection.createSession(true, Session.SESSION_TRANSACTED);
                 MessageConsumer consumer = session.createConsumer(session.createQueue(getName()));
                 connection.start();
  
                 for (int i = 0; i < MESSAGES; i++) {
                    Message message = consumer.receive(5000);
                    assertNotNull(message);
                    assertEquals(i, message.getIntProperty("i"));
                    if (i > 0 && i % 100 == 0) {
                       session.commit();
                    }
                 }
                 session.commit();
              }
           } catch (Throwable e) {
              errors.incrementAndGet();
              logger.warn(e.getMessage(), e);
           } finally {
              done.countDown();
           }
        });
  
        executorService.execute(() -> {
           try {
              try (Connection connection = cf.createConnection()) {
                 Session session = connection.createSession(true, Session.SESSION_TRANSACTED);
                 MessageProducer producer = session.createProducer(session.createQueue(getName()));
                 connection.start();
  
                 for (int i = 0; i < MESSAGES; i++) {
                    BytesMessage message = session.createBytesMessage();
                    message.writeBytes(new byte[MESSAGE_SIZE]);
                    message.setIntProperty("i", i);
                    producer.send(message);
                    if (i > 0 && i % 100 == 0) {
                       session.commit();
                    }
                 }
                 session.commit();
              }
           } catch (Throwable e) {
              errors.incrementAndGet();
              logger.warn(e.getMessage(), e);
           } finally {
              done.countDown();
           }
        });
  
        assertTrue(done.await(1, TimeUnit.MINUTES));
        assertEquals(0, errors.get());
  
        basicMemoryAsserts();
  
        JournalStorageManager journalStorageManager = (JournalStorageManager) server.getStorageManager();
        JournalImpl journalImpl = (JournalImpl) journalStorageManager.getMessageJournal();
        int totalFiles = journalImpl.getFilesRepository().getDataFiles().size() + journalImpl.getFilesRepository().getFreeFilesCount() + journalImpl.getOpenedFilesCount();
  
        // on this particular leak we would have 100 files. I am allowing a little cushion as they will be from currentFile and some other async opens
        assertMemory(new CheckLeak(), totalFiles + 5, JournalFileImpl.class.getName());
     }
  }