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.controller.internal;
  
  import java.util.Collections;
  import java.util.HashSet;
  import java.util.Map;
  import java.util.Set;
  
  import org.apache.ambari.server.AmbariException;
  import org.apache.ambari.server.controller.AmbariManagementController;
  import org.apache.ambari.server.controller.OperatingSystemRequest;
  import org.apache.ambari.server.controller.OperatingSystemResponse;
  import org.apache.ambari.server.controller.spi.NoSuchParentResourceException;
  import org.apache.ambari.server.controller.spi.NoSuchResourceException;
  import org.apache.ambari.server.controller.spi.Predicate;
  import org.apache.ambari.server.controller.spi.Request;
  import org.apache.ambari.server.controller.spi.Resource;
  import org.apache.ambari.server.controller.spi.Resource.Type;
  import org.apache.ambari.server.controller.spi.SystemException;
  import org.apache.ambari.server.controller.spi.UnsupportedPropertyException;
  import org.apache.ambari.server.controller.utilities.PropertyHelper;
  
  import com.google.common.collect.ImmutableMap;
  import com.google.common.collect.ImmutableSet;
  
  public class OperatingSystemResourceProvider extends ReadOnlyResourceProvider {
  
    public static final String OPERATING_SYSTEM_STACK_NAME_PROPERTY_ID            = PropertyHelper.getPropertyId("OperatingSystems", "stack_name");
    public static final String OPERATING_SYSTEM_STACK_VERSION_PROPERTY_ID         = PropertyHelper.getPropertyId("OperatingSystems", "stack_version");
    public static final String OPERATING_SYSTEM_OS_TYPE_PROPERTY_ID               = PropertyHelper.getPropertyId("OperatingSystems", "os_type");
    public static final String OPERATING_SYSTEM_REPOSITORY_VERSION_ID_PROPERTY_ID = PropertyHelper.getPropertyId("OperatingSystems", "repository_version_id");
    public static final String OPERATING_SYSTEM_VERSION_DEFINITION_ID_PROPERTY_ID = PropertyHelper.getPropertyId("OperatingSystems", "version_definition_id");
    public static final String OPERATING_SYSTEM_AMBARI_MANAGED_REPOS              = "OperatingSystems/ambari_managed_repositories";
  
    private static final Set<String> pkPropertyIds = ImmutableSet.of(
        OPERATING_SYSTEM_OS_TYPE_PROPERTY_ID,
        OPERATING_SYSTEM_STACK_NAME_PROPERTY_ID,
        OPERATING_SYSTEM_STACK_VERSION_PROPERTY_ID);
  
    public static final Set<String> propertyIds = ImmutableSet.of(
        OPERATING_SYSTEM_OS_TYPE_PROPERTY_ID,
        OPERATING_SYSTEM_STACK_NAME_PROPERTY_ID,
        OPERATING_SYSTEM_STACK_VERSION_PROPERTY_ID,
        OPERATING_SYSTEM_REPOSITORY_VERSION_ID_PROPERTY_ID,
        OPERATING_SYSTEM_VERSION_DEFINITION_ID_PROPERTY_ID,
        OPERATING_SYSTEM_AMBARI_MANAGED_REPOS);
  
    public static final Map<Type, String> keyPropertyIds = ImmutableMap.<Type, String>builder()
      .put(Resource.Type.OperatingSystem, OPERATING_SYSTEM_OS_TYPE_PROPERTY_ID)
      .put(Resource.Type.Stack, OPERATING_SYSTEM_STACK_NAME_PROPERTY_ID)
      .put(Resource.Type.StackVersion, OPERATING_SYSTEM_STACK_VERSION_PROPERTY_ID)
      .put(Resource.Type.RepositoryVersion, OPERATING_SYSTEM_REPOSITORY_VERSION_ID_PROPERTY_ID)
      .put(Resource.Type.CompatibleRepositoryVersion, OPERATING_SYSTEM_REPOSITORY_VERSION_ID_PROPERTY_ID)
      .put(Resource.Type.VersionDefinition, OPERATING_SYSTEM_VERSION_DEFINITION_ID_PROPERTY_ID)
      .build();
  
    protected OperatingSystemResourceProvider(AmbariManagementController managementController) {
      super(Resource.Type.OperatingSystem, propertyIds, keyPropertyIds, managementController);
    }
  
    @Override
    public Set<Resource> getResources(Request request, Predicate predicate)
        throws SystemException, UnsupportedPropertyException,
        NoSuchResourceException, NoSuchParentResourceException {
  
      final Set<OperatingSystemRequest> requests = new HashSet<>();
  
      if (predicate == null) {
        requests.add(getRequest(Collections.emptyMap()));
      } else {
        for (Map<String, Object> propertyMap : getPropertyMaps(predicate)) {
          requests.add(getRequest(propertyMap));
        }
      }
  
      Set<String> requestedIds = getRequestPropertyIds(request, predicate);
  
      Set<OperatingSystemResponse> responses = getResources(new Command<Set<OperatingSystemResponse>>() {
        @Override
        public Set<OperatingSystemResponse> invoke() throws AmbariException {
          return getManagementController().getOperatingSystems(requests);
        }
      });
  
      Set<Resource> resources = new HashSet<>();
  
      for (OperatingSystemResponse response : responses) {
        Resource resource = new ResourceImpl(Resource.Type.OperatingSystem);
  
        setResourceProperty(resource, OPERATING_SYSTEM_STACK_NAME_PROPERTY_ID,
            response.getStackName(), requestedIds);
  
        setResourceProperty(resource, OPERATING_SYSTEM_STACK_VERSION_PROPERTY_ID,
            response.getStackVersion(), requestedIds);
  
        setResourceProperty(resource, OPERATING_SYSTEM_OS_TYPE_PROPERTY_ID,
            response.getOsType(), requestedIds);
  
        setResourceProperty(resource, OPERATING_SYSTEM_AMBARI_MANAGED_REPOS, response.isAmbariManagedRepos(),
            requestedIds);
  
        if (response.getRepositoryVersionId() != null) {
          setResourceProperty(resource, OPERATING_SYSTEM_REPOSITORY_VERSION_ID_PROPERTY_ID,
              response.getRepositoryVersionId(), requestedIds);
        }
  
        if (response.getVersionDefinitionId() != null) {
          setResourceProperty(resource, OPERATING_SYSTEM_VERSION_DEFINITION_ID_PROPERTY_ID,
              response.getVersionDefinitionId(), requestedIds);
        }
  
        resources.add(resource);
      }
  
      return resources;
    }
  
    private OperatingSystemRequest getRequest(Map<String, Object> properties) {
      final OperatingSystemRequest request = new OperatingSystemRequest(
          (String) properties.get(OPERATING_SYSTEM_STACK_NAME_PROPERTY_ID),
          (String) properties.get(OPERATING_SYSTEM_STACK_VERSION_PROPERTY_ID),
          (String) properties.get(OPERATING_SYSTEM_OS_TYPE_PROPERTY_ID));
  
      if (properties.containsKey(OPERATING_SYSTEM_REPOSITORY_VERSION_ID_PROPERTY_ID)) {
        request.setRepositoryVersionId(Long.parseLong(properties.get(OPERATING_SYSTEM_REPOSITORY_VERSION_ID_PROPERTY_ID).toString()));
      }
  
      if (properties.containsKey(OPERATING_SYSTEM_VERSION_DEFINITION_ID_PROPERTY_ID)) {
        request.setVersionDefinitionId(properties.get(OPERATING_SYSTEM_VERSION_DEFINITION_ID_PROPERTY_ID).toString());
      }
  
      return request;
    }
  
    @Override
    protected Set<String> getPKPropertyIds() {
      return pkPropertyIds;
    }
  
  }
  