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   * Licensed to the Apache Software Foundation (ASF) under one or more
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   * 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
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   *
   *      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,
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  package org.apache.activemq.artemis.tests.smoke.infinite;
  
  import static org.junit.jupiter.api.Assertions.assertNotNull;
  import static org.junit.jupiter.api.Assertions.assertTrue;
  
  import javax.jms.Connection;
  import javax.jms.ConnectionFactory;
  import javax.jms.DeliveryMode;
  import javax.jms.MessageConsumer;
  import javax.jms.MessageProducer;
  import javax.jms.Queue;
  import javax.jms.Session;
  import javax.jms.TextMessage;
  
  import java.io.File;
  
  import org.apache.activemq.artemis.core.io.SequentialFileFactory;
  import org.apache.activemq.artemis.core.io.nio.NIOSequentialFileFactory;
  import org.apache.activemq.artemis.jms.client.ActiveMQConnectionFactory;
  import org.apache.activemq.artemis.tests.smoke.common.SmokeTestBase;
  import org.apache.activemq.artemis.utils.Wait;
  import org.apache.activemq.artemis.cli.commands.helper.HelperCreate;
  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;
  import java.lang.invoke.MethodHandles;
  
  public class InfiniteRedeliverySmokeTest extends SmokeTestBase {
  
     private static final Logger logger = LoggerFactory.getLogger(MethodHandles.lookup().lookupClass());
  
     public static final String SERVER_NAME_0 = "infinite-redelivery";
  
     @BeforeAll
     public static void createServers() throws Exception {
  
        File server0Location = getFileServerLocation(SERVER_NAME_0);
        deleteDirectory(server0Location);
  
        {
           HelperCreate cliCreateServer = helperCreate();
           cliCreateServer.setUser("admin").setPassword("admin").setAllowAnonymous(true).setNoWeb(true).setArtemisInstance(server0Location).setConfiguration("./src/main/resources/servers/infinite-redelivery");
           cliCreateServer.createServer();
        }
     }
  
     Process serverProcess;
  
     @BeforeEach
     public void before() throws Exception {
        cleanupData(SERVER_NAME_0);
        serverProcess = startServer(SERVER_NAME_0, 0, 30000);
     }
  
     @Test
     public void testValidateRedeliveries() throws Exception {
        ConnectionFactory factory = new ActiveMQConnectionFactory();
        Connection connection = factory.createConnection();
        Session session = connection.createSession(true, Session.SESSION_TRANSACTED);
  
        Queue queue = session.createQueue("testQueue");
        MessageProducer producer = session.createProducer(queue);
        producer.setDeliveryMode(DeliveryMode.PERSISTENT);
  
  
        TextMessage message = session.createTextMessage("this is a test");
        for (int i = 0; i < 5000; i++) {
           producer.send(message);
        }
        session.commit();
  
        connection.start();
  
        MessageConsumer consumer = session.createConsumer(queue);
  
        File journalLocation = new File(getServerLocation(SERVER_NAME_0) + "/data/journal");
        SequentialFileFactory fileFactory = new NIOSequentialFileFactory(journalLocation, 1);
  
        for (int i = 0; i < 500; i++) {
           if (i % 10 == 0) logger.debug("Redelivery {}", i);
           for (int j = 0; j < 5000; j++) {
              assertNotNull(consumer.receive(5000));
           }
           session.rollback();
  
           int numberOfFiles = fileFactory.listFiles("amq").size();
  
           // it should be actually 10, However if a future rule changes it to allow removing files I'm ok with that
           assertTrue(numberOfFiles >= 2, "there are not enough files on journal");
           // it should be max 10 actually, I'm just leaving some space for future changes,
           // as the real test I'm after here is the broker should clean itself up
           Wait.assertTrue("there are too many files created", () -> fileFactory.listFiles("amq").size() <= 20);
  
           if (i % 100 == 0 && i > 0) {
              connection.close();
              serverProcess.destroyForcibly();
              Thread.sleep(1000);
              serverProcess = startServer(SERVER_NAME_0, 0, 3000);
              connection = factory.createConnection();
              session = connection.createSession(true, Session.SESSION_TRANSACTED);
              consumer = session.createConsumer(queue);
              connection.start();
           }
  
        }
     }
  
     @Test
     public void testValidateJournalOnRollbackSend() throws Exception {
        ConnectionFactory factory = new ActiveMQConnectionFactory();
        Connection connection = factory.createConnection();
        Session session = connection.createSession(true, Session.SESSION_TRANSACTED);
  
        Queue queue = session.createQueue("testQueue");
        MessageProducer producer = session.createProducer(queue);
        producer.setDeliveryMode(DeliveryMode.PERSISTENT);
  
  
  
        File journalLocation = new File(getServerLocation(SERVER_NAME_0) + "/data/journal");
        SequentialFileFactory fileFactory = new NIOSequentialFileFactory(journalLocation, 1);
        TextMessage message = session.createTextMessage("This is a test");
        producer.send(message); // we will always have one message behind
        connection.start();
        MessageConsumer consumer = session.createConsumer(queue);
        for (int i = 0; i < 500; i++) {
           if (i % 10 == 0) logger.debug("Rollback send {}", i);
           for (int j = 0; j < 5000; j++) {
              producer.send(message);
           }
           if (i % 100 == 0) {
              session.commit();
              for (int c = 0; c < 5000; c++) {
                 assertNotNull(consumer.receive(5000));
              }
              session.commit();
              assertNotNull(consumer.receive(5000)); // there's one message behind
              session.rollback(); // we will keep the one message behind
           } else {
              session.rollback();
           }
           int numberOfFiles = fileFactory.listFiles("amq").size();
           // it should be actually 10, However if a future rule changes it to allow removing files I'm ok with that
           assertTrue(numberOfFiles >= 2, "there are not enough files on journal");
           // it should be max 10 actually, I'm just leaving some space for future changes,
           // as the real test I'm after here is the broker should clean itself up
           Wait.assertTrue(() -> fileFactory.listFiles("amq").size() <= 20);
        }
     }
  }
  