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.Map;
  import java.util.Set;
  
  import org.apache.ambari.server.controller.AmbariManagementController;
  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.RequestStatus;
  import org.apache.ambari.server.controller.spi.Resource;
  import org.apache.ambari.server.controller.spi.ResourceAlreadyExistsException;
  import org.apache.ambari.server.controller.spi.SystemException;
  import org.apache.ambari.server.controller.spi.UnsupportedPropertyException;
  
  public abstract class ReadOnlyResourceProvider extends AbstractControllerResourceProvider {
  
    private static final String READ_ONLY_MSG = "Read-only resource";
  
    /**
     * Create a new resource provider for the given management controller. This
     * constructor will initialize the specified {@link Resource.Type} with the
     * provided keys. It should be used in cases where the provider declares its
     * own keys instead of reading them from a JSON file.
     *
     * @param type
     *          the type to set the properties for (not {@code null}).
     * @param propertyIds
     *          the property ids
     * @param keyPropertyIds
     *          the key property ids
     * @param managementController
     *          the management controller
     */
    ReadOnlyResourceProvider(Resource.Type type, Set<String> propertyIds,
        Map<Resource.Type, String> keyPropertyIds, AmbariManagementController managementController) {
      super(type, propertyIds, keyPropertyIds, managementController);
    }
  
    @Override
    public RequestStatus createResources(Request request) throws SystemException,
        UnsupportedPropertyException, ResourceAlreadyExistsException,
        NoSuchParentResourceException {
      throw new SystemException(READ_ONLY_MSG, null);
    }
  
    @Override
    public Set<Resource> getResources(Request request, Predicate predicate)
        throws SystemException, UnsupportedPropertyException,
        NoSuchResourceException, NoSuchParentResourceException {
      throw new SystemException(READ_ONLY_MSG, null);
    }
  
    @Override
    public RequestStatus updateResources(Request request, Predicate predicate)
        throws SystemException, UnsupportedPropertyException,
        NoSuchResourceException, NoSuchParentResourceException {
       throw new SystemException(READ_ONLY_MSG, null);
    }
  
    @Override
    public RequestStatus deleteResources(Request request, Predicate predicate)
        throws SystemException, UnsupportedPropertyException,
        NoSuchResourceException, NoSuchParentResourceException {
      throw new SystemException(READ_ONLY_MSG, null);
    }
  
    /**
     * Get an amended predicate used when use {@link #getResources(Request, Predicate)}.  This
     * is needed in cases where the resource might incorrectly be filtered during predicate processing.
     * Changing the predicate allows them to be included.
     * @param predicate the predicate passed in the request
     * @return the new predicate, or {@code null} to leave the predicate unchanged.
     */
    public Predicate amendPredicate(Predicate predicate) {
      // TODO Auto-generated method stub
      return null;
    }
  }