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.stress.remote;
  
  import java.lang.invoke.MethodHandles;
  import java.util.concurrent.CountDownLatch;
  import java.util.concurrent.TimeUnit;
  
  import org.apache.activemq.artemis.api.core.Interceptor;
  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.ServerLocator;
  import org.apache.activemq.artemis.core.protocol.core.impl.PacketImpl;
  import org.apache.activemq.artemis.core.server.ActiveMQServer;
  import org.apache.activemq.artemis.tests.util.ActiveMQTestBase;
  import org.apache.activemq.artemis.utils.RandomUtil;
  import org.junit.jupiter.api.BeforeEach;
  import org.junit.jupiter.api.Test;
  import org.slf4j.Logger;
  import org.slf4j.LoggerFactory;
  
  import static org.junit.jupiter.api.Assertions.assertTrue;
  
  public class PingStressTest extends ActiveMQTestBase {
  
     private static final Logger logger = LoggerFactory.getLogger(MethodHandles.lookup().lookupClass());
  
     private static final long PING_INTERVAL = 500;
  
     private ActiveMQServer server;
  
     @Override
     @BeforeEach
     public void setUp() throws Exception {
        super.setUp();
        server = createServer(false, createDefaultNettyConfig());
        server.start();
     }
  
     protected int getNumberOfIterations() {
        return 20;
     }
  
     @Test
     public void testMultiThreadOpenAndCloses() throws Exception {
        for (int i = 0; i < getNumberOfIterations(); i++) {
           if (i > 0) {
              tearDown();
              setUp();
           }
           internalTest();
        }
  
     }
  
     // Test the client triggering failure due to no pong received in time
     private void internalTest() throws Exception {
        Interceptor noPongInterceptor = (packet, conn) -> {
           PingStressTest.logger.info("In interceptor, packet is {}", packet.getType());
           if (packet.getType() == PacketImpl.PING) {
              PingStressTest.logger.info("Ignoring Ping packet.. it will be dropped");
              return false;
           } else {
              return true;
           }
        };
  
        server.getRemotingService().addIncomingInterceptor(noPongInterceptor);
        ServerLocator locator = createNettyNonHALocator().setClientFailureCheckPeriod(PingStressTest.PING_INTERVAL).setConnectionTTL((long) (PingStressTest.PING_INTERVAL * 1.5)).setCallTimeout(PingStressTest.PING_INTERVAL * 10);
        final ClientSessionFactory csf1 = createSessionFactory(locator);
  
        final int numberOfSessions = 1;
        final int numberOfThreads = 30;
  
        final CountDownLatch flagStart = new CountDownLatch(1);
        final CountDownLatch flagAligned = new CountDownLatch(numberOfThreads);
  
        class LocalThread extends Thread {
  
           Throwable failure;
  
           int threadNumber;
  
           LocalThread(final int i) {
              super("LocalThread i = " + i);
              threadNumber = i;
           }
  
           @Override
           public void run() {
              try {
  
                 ServerLocator locator = createNettyNonHALocator().setClientFailureCheckPeriod(PingStressTest.PING_INTERVAL).setConnectionTTL((long) (PingStressTest.PING_INTERVAL * 1.5)).setCallTimeout(PingStressTest.PING_INTERVAL * 10);
  
                 final ClientSessionFactory csf2 = createSessionFactory(locator);
  
                 // Start all at once to make concurrency worst
                 flagAligned.countDown();
                 flagStart.await();
                 for (int i = 0; i < numberOfSessions; i++) {
                    System.out.println(getName() + " Session = " + i);
  
                    ClientSession session;
  
                    // Sometimes we use the SessionFactory declared on this thread, sometimes the SessionFactory declared
                    // on the test, sharing it with other threads
                    // (playing a possible user behaviour where you share the Factories among threads, versus not sharing
                    // them)
                    if (RandomUtil.randomBoolean()) {
                       session = csf1.createSession(false, false, false);
                    } else {
                       session = csf2.createSession(false, false, false);
                    }
  
                    // We will wait to anything between 0 to PING_INTERVAL * 2
                    Thread.sleep(PingStressTest.PING_INTERVAL * (threadNumber % 3));
  
                    session.close();
  
                    csf2.close();
  
                    locator.close();
                 }
              } catch (Throwable e) {
                 e.printStackTrace();
                 failure = e;
              }
           }
        }
  
        LocalThread[] threads = new LocalThread[numberOfThreads];
  
        for (int i = 0; i < numberOfThreads; i++) {
           threads[i] = new LocalThread(i);
           threads[i].start();
        }
  
        assertTrue(flagAligned.await(10, TimeUnit.SECONDS));
        flagStart.countDown();
  
        Throwable e = null;
        for (LocalThread t : threads) {
           t.join();
           if (t.failure != null) {
              e = t.failure;
           }
        }
  
        if (e != null) {
           throw new Exception("Test Failed", e);
        }
  
        csf1.close();
  
        locator.close();
  
     }
  }
  