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   * 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,
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   * See the License for the specific language governing permissions and
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  package org.apache.activemq.artemis.tests.integration.paging;
  
  import javax.jms.Connection;
  import javax.jms.ConnectionFactory;
  import javax.jms.MessageConsumer;
  import javax.jms.MessageProducer;
  import javax.jms.Session;
  import java.io.File;
  import java.lang.invoke.MethodHandles;
  import java.util.concurrent.ExecutorService;
  import java.util.concurrent.Executors;
  import java.util.concurrent.TimeUnit;
  import java.util.concurrent.atomic.AtomicInteger;
  
  import org.apache.activemq.artemis.api.core.client.ClientSessionFactory;
  import org.apache.activemq.artemis.api.core.client.ServerLocator;
  import org.apache.activemq.artemis.core.config.Configuration;
  import org.apache.activemq.artemis.core.server.ActiveMQServer;
  import org.apache.activemq.artemis.core.server.JournalType;
  import org.apache.activemq.artemis.core.server.Queue;
  import org.apache.activemq.artemis.logs.AssertionLoggerHandler;
  import org.apache.activemq.artemis.tests.util.ActiveMQTestBase;
  import org.apache.activemq.artemis.tests.util.CFUtil;
  import org.apache.activemq.artemis.tests.util.Wait;
  import org.apache.activemq.artemis.utils.ReusableLatch;
  import org.apache.activemq.artemis.utils.TestParameters;
  import org.junit.jupiter.api.Test;
  import org.slf4j.Logger;
  import org.slf4j.LoggerFactory;
  
  import static org.junit.jupiter.api.Assertions.assertEquals;
  import static org.junit.jupiter.api.Assertions.assertNotNull;
  import static org.junit.jupiter.api.Assertions.assertTrue;
  
  /** It is recommended to setup the variable ARTEMIS_NFS to use a NFS mount on this test. */
  public class PageCleanupFolderTest extends ActiveMQTestBase {
  
     protected static final int PAGE_MAX = 100 * 1024;
     protected static final int PAGE_SIZE = 10 * 1024;
     private static final Logger logger = LoggerFactory.getLogger(MethodHandles.lookup().lookupClass());
     protected ServerLocator locator;
     protected ActiveMQServer server;
     protected ClientSessionFactory sf;
     private AssertionLoggerHandler loggerHandler;
  
     @Test
     public void testCleanupFolders() throws Exception {
  
        Configuration config = createDefaultConfig(true).setPurgePageFolders(true).setJournalType(JournalType.NIO);
  
        if (TestParameters.NFS_FOLDER != null) {
           File dataFolder = new File(TestParameters.NFS_FOLDER + "/PageCleanupFolderTest");
           deleteDirectory(dataFolder);
           config.setJournalDirectory(dataFolder.getAbsolutePath() + "/journal").
              setPagingDirectory(dataFolder.getAbsolutePath() + "/paging").
              setBindingsDirectory(dataFolder.getAbsolutePath() + "/binding").
              setLargeMessagesDirectory(dataFolder.getAbsolutePath() + "/largeMessages");
        }
  
        final int PAGE_MAX = 0;
  
        final int PAGE_SIZE = 1024 * 1024;
  
        server = createServer(true, config, PAGE_SIZE, PAGE_MAX, -1, -1);
        server.start();
  
        ExecutorService executorService = Executors.newFixedThreadPool(20);
        runAfter(executorService::shutdownNow);
  
        int destinations = 20;
  
        for (int serverStart = 0; serverStart < 3; serverStart++) {
           try (AssertionLoggerHandler assertionLoggerHandler = new AssertionLoggerHandler()) {
              AtomicInteger errors = new AtomicInteger(0);
              ReusableLatch done = new ReusableLatch(destinations);
              for (int i = 0; i < destinations; i++) {
                 final int destinationID = i;
                 executorService.execute(() -> {
                    ConnectionFactory factory = CFUtil.createConnectionFactory("CORE", "tcp://localhost:61616");
                    try (Connection connection = factory.createConnection()) {
                       Session session = connection.createSession(true, Session.SESSION_TRANSACTED);
                       MessageProducer producer = session.createProducer(session.createQueue("queue" + destinationID));
                       for (int s = 0; s < 100; s++) {
                          producer.send(session.createTextMessage("hello " + s));
                       }
                       session.commit();
                    } catch (Exception e) {
                       errors.incrementAndGet();
                       logger.warn(e.getMessage(), e);
                    } finally {
                       done.countDown();
                    }
                 });
              }
              assertTrue(done.await(50, TimeUnit.SECONDS));
  
              done.setCount(destinations);
              for (int i = 0; i < destinations; i++) {
                 final int destinationID = i;
                 executorService.execute(() -> {
                    ConnectionFactory factory = CFUtil.createConnectionFactory("CORE", "tcp://localhost:61616");
                    try (Connection connection = factory.createConnection()) {
                       Session session = connection.createSession(true, Session.SESSION_TRANSACTED);
                       MessageConsumer consumer = session.createConsumer(session.createQueue("queue" + destinationID));
                       connection.start();
                       for (int s = 0; s < 100; s++) {
                          assertNotNull(consumer.receive(5000));
                       }
                       session.commit();
                    } catch (Exception e) {
                       errors.incrementAndGet();
                       logger.warn(e.getMessage(), e);
                    } finally {
                       done.countDown();
                    }
                 });
              }
              assertTrue(done.await(5, TimeUnit.SECONDS));
              assertEquals(0, errors.get());
  
              for (int i = 0; i < destinations; i++) {
                 Queue queue = server.locateQueue("queue" + i);
                 assertNotNull(queue);
                 Wait.assertFalse(queue.getPagingStore()::isPaging, 5000, 100);
              }
  
              // this is the code for purging a page folder
              Wait.assertTrue(() -> assertionLoggerHandler.countText("AMQ224146") >= destinations, 5000, 100);
              // this is the code to "fail to purge the page folder"
              assertEquals(0, assertionLoggerHandler.countText("AMQ224147"));
  
              File pageFolderLocation = server.getConfiguration().getPagingLocation();
              Wait.assertEquals(0, () -> pageFolderLocation.listFiles().length, 5000, 100);
  
              server.stop();
              server.start();
  
              Wait.assertEquals(0, () -> pageFolderLocation.listFiles().length, 5000, 100);
           }
  
        }
     }
  }
  