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.ambari.server.configuration;
  
  import static org.apache.ambari.server.configuration.AmbariServerConfigurationCategory.TPROXY_CONFIGURATION;
  import static org.easymock.EasyMock.expect;
  
  import java.util.ArrayList;
  import java.util.Collection;
  import java.util.Collections;
  import java.util.HashMap;
  import java.util.List;
  import java.util.Map;
  
  import jakarta.persistence.EntityManager;
  
  import org.apache.ambari.server.events.AmbariConfigurationChangedEvent;
  import org.apache.ambari.server.events.JpaInitializedEvent;
  import org.apache.ambari.server.events.publishers.AmbariEventPublisher;
  import org.apache.ambari.server.orm.dao.AmbariConfigurationDAO;
  import org.apache.ambari.server.orm.entities.AmbariConfigurationEntity;
  import org.apache.ambari.server.security.encryption.Encryptor;
  import org.apache.ambari.server.state.stack.OsFamily;
  import org.easymock.EasyMockSupport;
  import org.junit.Assert;
  import org.junit.Test;
  
  import com.google.inject.AbstractModule;
  import com.google.inject.Guice;
  import com.google.inject.Injector;
  import com.google.inject.TypeLiteral;
  import com.google.inject.name.Names;
  import com.google.inject.persist.jpa.AmbariJpaPersistService;
  
  public class AmbariServerConfigurationProviderTest extends EasyMockSupport {
  
    private static final AmbariServerConfigurationCategory TEST_CONFIGURATION = TPROXY_CONFIGURATION;
  
    @Test
    public void testGetAndLoadDataForVariousEvents() {
      Injector injector = getInjector();
  
      AmbariServerConfiguration emptyTestConfiguration = createMock(AmbariServerConfiguration.class);
  
      AmbariServerConfiguration filledTestConfiguration1 = createMock(AmbariServerConfiguration.class);
  
      AmbariServerConfiguration filledTestConfiguration2 = createMock(AmbariServerConfiguration.class);
  
      AmbariEventPublisher publisher = injector.getInstance(AmbariEventPublisher.class);
      AmbariJpaPersistService persistService = injector.getInstance(AmbariJpaPersistService.class);
  
      AmbariServerConfigurationProvider provider = createMockBuilder(AmbariServerConfigurationProvider.class)
          .addMockedMethod("loadInstance", Collection.class)
          .withConstructor(TEST_CONFIGURATION, publisher, persistService)
          .createMock();
  
      expect(provider.loadInstance(Collections.emptyList())).andReturn(emptyTestConfiguration).once();
      expect(provider.loadInstance(null)).andReturn(filledTestConfiguration1).once();
      expect(provider.loadInstance(null)).andReturn(filledTestConfiguration2).once();
  
      replayAll();
  
      injector.injectMembers(provider);
  
      AmbariServerConfiguration configuration = provider.get();
      Assert.assertSame(emptyTestConfiguration, configuration);
  
      // Push a configuration change event...
      provider.ambariConfigurationChanged(new AmbariConfigurationChangedEvent(TEST_CONFIGURATION.getCategoryName()));
  
      AmbariServerConfiguration configuration2 = provider.get();
      // This should return the same instance as before since loadInstance should not have done anything
      Assert.assertSame(configuration, configuration2);
  
      // Push an initializing JPA event...
      provider.jpaInitialized(new JpaInitializedEvent());
  
      AmbariServerConfiguration configuration3 = provider.get();
      Assert.assertSame(filledTestConfiguration1, configuration3);
  
      // Push a configuration change event...
      provider.ambariConfigurationChanged(new AmbariConfigurationChangedEvent(TEST_CONFIGURATION.getCategoryName()));
  
      AmbariServerConfiguration configuration4 = provider.get();
      // This should return a different instance since loadInstance should have done some work
      Assert.assertNotSame(configuration3, configuration4);
  
      verifyAll();
    }
  
    @Test
    public void testToProperties() {
      Injector injector = getInjector();
  
      AmbariEventPublisher publisher = injector.getInstance(AmbariEventPublisher.class);
      AmbariJpaPersistService persistService = injector.getInstance(AmbariJpaPersistService.class);
  
      AmbariServerConfigurationProvider provider = createMockBuilder(AmbariServerConfigurationProvider.class)
          .withConstructor(TEST_CONFIGURATION, publisher, persistService)
          .createMock();
  
      replayAll();
  
      Map actualProperties;
  
      actualProperties = provider.toProperties(null);
      Assert.assertNotNull(actualProperties);
      Assert.assertEquals(Collections.emptyMap(), actualProperties);
  
      actualProperties = provider.toProperties(Collections.emptyList());
      Assert.assertNotNull(actualProperties);
      Assert.assertEquals(Collections.emptyMap(), actualProperties);
  
      Map<String, String> expectedProperties = new HashMap<>();
      expectedProperties.put("one", "1");
      expectedProperties.put("two", "2");
      expectedProperties.put("three", "3");
  
      actualProperties = provider.toProperties(createAmbariConfigurationEntities(expectedProperties));
      Assert.assertNotNull(actualProperties);
      Assert.assertNotSame(expectedProperties, actualProperties);
      Assert.assertEquals(expectedProperties, actualProperties);
  
      verifyAll();
    }
  
    private Collection<AmbariConfigurationEntity> createAmbariConfigurationEntities(Map<String, String> properties) {
      List<AmbariConfigurationEntity> entities = new ArrayList<>();
  
      for (Map.Entry<String, String> entry : properties.entrySet()) {
        AmbariConfigurationEntity entity = new AmbariConfigurationEntity();
        entity.setCategoryName("some-category");
        entity.setPropertyName(entry.getKey());
        entity.setPropertyValue(entry.getValue());
        entities.add(entity);
      }
  
      return entities;
    }
  
    private Injector getInjector() {
      return Guice.createInjector(new AbstractModule() {
  
        @Override
        protected void configure() {
          AmbariJpaPersistService persistService = createMockBuilder(AmbariJpaPersistService.class)
              .withConstructor("test", Collections.emptyMap())
              .createMock();
  
          bind(OsFamily.class).toInstance(createNiceMock(OsFamily.class));
          bind(EntityManager.class).toInstance(createNiceMock(EntityManager.class));
          bind(AmbariJpaPersistService.class).toInstance(persistService);
          bind(AmbariConfigurationDAO.class).toInstance(createNiceMock(AmbariConfigurationDAO.class));
          bind(new TypeLiteral<Encryptor<AmbariServerConfiguration>>() {}).annotatedWith(Names.named("AmbariServerConfigurationEncryptor")).toInstance(Encryptor.NONE);
        }
      });
    }
  }