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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,
   * 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.upgrade;
  
  import static org.easymock.EasyMock.anyObject;
  import static org.easymock.EasyMock.anyString;
  import static org.easymock.EasyMock.createNiceMock;
  import static org.easymock.EasyMock.createStrictMock;
  import static org.easymock.EasyMock.eq;
  import static org.easymock.EasyMock.expect;
  import static org.easymock.EasyMock.replay;
  import static org.easymock.EasyMock.verify;
  
  import java.sql.SQLException;
  import java.util.Collections;
  import java.util.HashMap;
  import java.util.HashSet;
  import java.util.Map;
  
  import org.apache.ambari.server.AmbariException;
  import org.apache.ambari.server.controller.AmbariManagementController;
  import org.apache.ambari.server.state.Cluster;
  import org.apache.ambari.server.state.Clusters;
  import org.apache.ambari.server.state.Config;
  import org.apache.ambari.server.state.ConfigHelper;
  import org.apache.ambari.server.state.PropertyInfo;
  import org.apache.ambari.server.state.PropertyUpgradeBehavior;
  import org.apache.ambari.server.state.Service;
  import org.apache.ambari.server.state.ServiceInfo;
  import org.apache.ambari.server.state.StackId;
  import org.junit.Before;
  import org.junit.Test;
  
  import com.google.inject.Injector;
  
  public class AbstractUpgradeCatalogTest {
    private static final String CONFIG_TYPE = "hdfs-site.xml";
    private final String CLUSTER_NAME = "c1";
    private final String SERVICE_NAME = "HDFS";
    private AmbariManagementController amc;
    private ConfigHelper configHelper;
    private Injector injector;
    private Cluster cluster;
    private Clusters clusters;
    private ServiceInfo serviceInfo;
    private Config oldConfig;
    private AbstractUpgradeCatalog upgradeCatalog;
    private HashMap<String, String> oldProperties;
  
    @Before
    public void init() throws AmbariException {
      injector = createNiceMock(Injector.class);
      configHelper = createNiceMock(ConfigHelper.class);
      amc = createNiceMock(AmbariManagementController.class);
      cluster = createNiceMock(Cluster.class);
      clusters = createStrictMock(Clusters.class);
      serviceInfo = createNiceMock(ServiceInfo.class);
      oldConfig = createNiceMock(Config.class);
  
      expect(injector.getInstance(ConfigHelper.class)).andReturn(configHelper).anyTimes();
      expect(injector.getInstance(AmbariManagementController.class)).andReturn(amc).anyTimes();
      expect(injector.getInstance(Clusters.class)).andReturn(clusters).anyTimes();
  
      HashMap<String, Cluster> clusterMap = new HashMap<>();
      clusterMap.put(CLUSTER_NAME, cluster);
      expect(clusters.getClusters()).andReturn(clusterMap).anyTimes();
  
      HashSet<PropertyInfo> stackProperties = new HashSet<>();
      expect(configHelper.getStackProperties(cluster)).andReturn(stackProperties).anyTimes();
  
      HashMap<String, Service> serviceMap = new HashMap<>();
      serviceMap.put(SERVICE_NAME, null);
      expect(cluster.getServices()).andReturn(serviceMap).anyTimes();
  
      HashSet<PropertyInfo> serviceProperties = new HashSet<>();
      serviceProperties.add(createProperty(CONFIG_TYPE, "prop1", true, false, false));
      serviceProperties.add(createProperty(CONFIG_TYPE, "prop2", false, true, false));
      serviceProperties.add(createProperty(CONFIG_TYPE, "prop3", false, false, true));
      serviceProperties.add(createProperty(CONFIG_TYPE, "prop4", true, false, false));
  
      expect(configHelper.getServiceProperties(cluster, SERVICE_NAME)).andReturn(serviceProperties).anyTimes();
  
      expect(configHelper.getPropertyValueFromStackDefinitions(cluster, "hdfs-site", "prop1")).andReturn("v1").anyTimes();
      expect(configHelper.getPropertyValueFromStackDefinitions(cluster, "hdfs-site", "prop2")).andReturn("v2").anyTimes();
      expect(configHelper.getPropertyValueFromStackDefinitions(cluster, "hdfs-site", "prop3")).andReturn("v3").anyTimes();
      expect(configHelper.getPropertyValueFromStackDefinitions(cluster, "hdfs-site", "prop4")).andReturn("v4").anyTimes();
      expect(configHelper.getPropertyOwnerService(eq(cluster), eq("hdfs-site"), anyString())).andReturn(serviceInfo).anyTimes();
      expect(serviceInfo.getName()).andReturn(SERVICE_NAME).anyTimes();
  
      expect(cluster.getDesiredConfigByType("hdfs-site")).andReturn(oldConfig).anyTimes();
      oldProperties = new HashMap<>();
      expect(oldConfig.getProperties()).andReturn(oldProperties).anyTimes();
  
      upgradeCatalog = new AbstractUpgradeCatalog(injector) {
        @Override
        protected void executeDDLUpdates() throws AmbariException, SQLException { }
  
        @Override
        protected void executePreDMLUpdates() throws AmbariException, SQLException { }
  
        @Override
        protected void executeDMLUpdates() throws AmbariException, SQLException { }
  
        @Override
        public String getTargetVersion() { return null; }
      };
    }
  
    @Test
    public void shouldAddConfigurationFromXml() throws AmbariException {
  
      oldProperties.put("prop1", "v1-old");
  
      Map<String, Map<String, String>> tags = Collections.emptyMap();
      Map<String, String> mergedProperties = new HashMap<>();
      mergedProperties.put("prop1", "v1-old");
      mergedProperties.put("prop4", "v4");
  
      expect(amc.createConfig(eq(cluster), anyObject(StackId.class), eq("hdfs-site"), eq(mergedProperties), anyString(), eq(tags))).andReturn(null);
  
      replay(injector, configHelper, amc, cluster, clusters, serviceInfo, oldConfig);
  
      upgradeCatalog.addNewConfigurationsFromXml();
  
      verify(configHelper, amc, cluster, clusters, serviceInfo, oldConfig);
    }
  
    @Test
    public void shouldUpdateConfigurationFromXml() throws AmbariException {
  
      oldProperties.put("prop1", "v1-old");
      oldProperties.put("prop2", "v2-old");
      oldProperties.put("prop3", "v3-old");
  
      Map<String, Map<String, String>> tags = Collections.emptyMap();
      Map<String, String> mergedProperties = new HashMap<>();
      mergedProperties.put("prop1", "v1-old");
      mergedProperties.put("prop2", "v2");
      mergedProperties.put("prop3", "v3-old");
  
      expect(amc.createConfig(eq(cluster), anyObject(StackId.class), eq("hdfs-site"), eq(mergedProperties), anyString(), eq(tags))).andReturn(null);
  
      replay(injector, configHelper, amc, cluster, clusters, serviceInfo, oldConfig);
  
      upgradeCatalog.addNewConfigurationsFromXml();
  
      verify(configHelper, amc, cluster, clusters, serviceInfo, oldConfig);
    }
  
    @Test
    public void shouldDeleteConfigurationFromXml() throws AmbariException {
  
      oldProperties.put("prop1", "v1-old");
      oldProperties.put("prop3", "v3-old");
  
      Map<String, Map<String, String>> tags = Collections.emptyMap();
      Map<String, String> mergedProperties = new HashMap<>();
      mergedProperties.put("prop1", "v1-old");
  
      expect(amc.createConfig(eq(cluster), anyObject(StackId.class), eq("hdfs-site"), eq(mergedProperties), anyString(), eq(tags))).andReturn(null);
  
      replay(injector, configHelper, amc, cluster, clusters, serviceInfo, oldConfig);
  
      upgradeCatalog.addNewConfigurationsFromXml();
  
      verify(configHelper, amc, cluster, clusters, serviceInfo, oldConfig);
    }
  
    private static PropertyInfo createProperty(String filename, String name, boolean add, boolean update, boolean delete) {
      PropertyInfo propertyInfo = new PropertyInfo();
      propertyInfo.setFilename(filename);
      propertyInfo.setName(name);
      propertyInfo.setPropertyAmbariUpgradeBehavior(new PropertyUpgradeBehavior(add, delete, update));
      return propertyInfo;
    }
  }