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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
   * 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
   * limitations under the License.
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  package org.apache.activemq.artemis.tests.unit.core.postoffice.impl;
  
  import java.util.ArrayList;
  import java.util.HashMap;
  import java.util.List;
  import java.util.Map;
  import java.util.concurrent.ExecutorService;
  import java.util.concurrent.Executors;
  import java.util.concurrent.ScheduledExecutorService;
  
  import org.apache.activemq.artemis.api.config.ActiveMQDefaultConfiguration;
  import org.apache.activemq.artemis.api.core.Pair;
  import org.apache.activemq.artemis.api.core.SimpleString;
  import org.apache.activemq.artemis.core.config.Configuration;
  import org.apache.activemq.artemis.core.persistence.impl.journal.JournalStorageManager;
  import org.apache.activemq.artemis.core.postoffice.DuplicateIDCache;
  import org.apache.activemq.artemis.core.postoffice.PostOffice;
  import org.apache.activemq.artemis.core.postoffice.impl.DuplicateIDCaches;
  import org.apache.activemq.artemis.core.server.impl.PostOfficeJournalLoader;
  import org.apache.activemq.artemis.core.transaction.impl.ResourceManagerImpl;
  import org.apache.activemq.artemis.tests.unit.core.server.impl.fakes.FakePostOffice;
  import org.apache.activemq.artemis.tests.unit.util.FakePagingManager;
  import org.apache.activemq.artemis.tests.util.ActiveMQTestBase;
  import org.apache.activemq.artemis.utils.ActiveMQThreadFactory;
  import org.apache.activemq.artemis.utils.ExecutorFactory;
  import org.apache.activemq.artemis.utils.RandomUtil;
  import org.apache.activemq.artemis.utils.actors.OrderedExecutorFactory;
  import org.apache.activemq.artemis.utils.critical.EmptyCriticalAnalyzer;
  import org.junit.jupiter.api.AfterEach;
  import org.junit.jupiter.api.BeforeEach;
  import org.junit.jupiter.api.Test;
  
  import static org.junit.jupiter.api.Assertions.assertEquals;
  
  public class DuplicateDetectionUnitTest extends ActiveMQTestBase {
  
  
     ExecutorService executor;
  
     ExecutorFactory factory;
  
     @Override
     @AfterEach
     public void tearDown() throws Exception {
        executor.shutdown();
        super.tearDown();
     }
  
     @Override
     @BeforeEach
     public void setUp() throws Exception {
        super.setUp();
        executor = Executors.newFixedThreadPool(10, ActiveMQThreadFactory.defaultThreadFactory(getClass().getName()));
        factory = new OrderedExecutorFactory(executor);
     }
  
  
     @Test
     public void testReloadDuplication() throws Exception {
  
        JournalStorageManager journal = null;
  
        try {
           clearDataRecreateServerDirs();
  
           SimpleString ADDRESS = SimpleString.of("address");
  
           Configuration configuration = createDefaultInVMConfig();
  
           PostOffice postOffice = new FakePostOffice();
  
           ScheduledExecutorService scheduledThreadPool = Executors.newScheduledThreadPool(ActiveMQDefaultConfiguration.getDefaultScheduledThreadPoolMaxSize(), ActiveMQThreadFactory.defaultThreadFactory(getClass().getName()));
  
           journal = new JournalStorageManager(configuration, EmptyCriticalAnalyzer.getInstance(), factory, factory);
  
           journal.start();
           journal.loadBindingJournal(new ArrayList<>(), new ArrayList<>(), new ArrayList<>());
  
           Map<SimpleString, List<Pair<byte[], Long>>> mapDups = new HashMap<>();
  
           FakePagingManager pagingManager = new FakePagingManager();
           journal.loadMessageJournal(postOffice, pagingManager, new ResourceManagerImpl(null, 0, 0, scheduledThreadPool), null, mapDups, null, null, new PostOfficeJournalLoader(postOffice, pagingManager, null, null, null, null, null, null));
  
           assertEquals(0, mapDups.size());
  
           DuplicateIDCache cacheID = DuplicateIDCaches.persistent(ADDRESS, 10, journal);
  
           for (int i = 0; i < 100; i++) {
              cacheID.addToCache(RandomUtil.randomBytes());
           }
  
           journal.stop();
  
           journal = new JournalStorageManager(configuration, EmptyCriticalAnalyzer.getInstance(), factory, factory);
           journal.start();
           journal.loadBindingJournal(new ArrayList<>(), new ArrayList<>(), new ArrayList<>());
  
           journal.loadMessageJournal(postOffice, pagingManager, new ResourceManagerImpl(null, 0, 0, scheduledThreadPool), null, mapDups, null, null, new PostOfficeJournalLoader(postOffice, pagingManager, null, null, null, null, null, null));
  
           assertEquals(1, mapDups.size());
  
           List<Pair<byte[], Long>> values = mapDups.get(ADDRESS);
  
           assertEquals(10, values.size());
  
           cacheID = DuplicateIDCaches.persistent(ADDRESS, 10, journal);
           cacheID.load(values);
  
           for (int i = 0; i < 100; i++) {
              cacheID.addToCache(RandomUtil.randomBytes(), null);
           }
  
           journal.stop();
  
           mapDups.clear();
  
           journal = new JournalStorageManager(configuration, EmptyCriticalAnalyzer.getInstance(), factory, factory);
           journal.start();
           journal.loadBindingJournal(new ArrayList<>(), new ArrayList<>(), new ArrayList<>());
  
           journal.loadMessageJournal(postOffice, pagingManager, new ResourceManagerImpl(null, 0, 0, scheduledThreadPool), null, mapDups, null, null, new PostOfficeJournalLoader(postOffice, pagingManager, null, null, null, null, null, null));
  
           assertEquals(1, mapDups.size());
  
           values = mapDups.get(ADDRESS);
  
           assertEquals(10, values.size());
  
           scheduledThreadPool.shutdown();
        } finally {
           if (journal != null) {
              try {
                 journal.stop();
              } catch (Throwable ignored) {
              }
           }
        }
  
     }
  }
  