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.spi;
  
  import java.util.Set;
  
  /**
   * A RequestStatus represents the result of an asynchronous operation on resources. Methods are
   * provided to check the status of the operation and to retrieve the set of resources involved
   * in the operation.
   */
  public interface RequestStatus {
  
    /**
     * Get the resources involved in the operation initiated by the request.
     *
     * @return the set of resources
     */
    Set<Resource> getAssociatedResources();
  
    /**
     * Get the resource of type request for the asynchronous request.
     *
     * @return the request resource
     */
    Resource getRequestResource();
  
    /**
     * Get the status of the operation initiated by the request.
     *
     * @return the status
     */
    Status getStatus();
  
    RequestStatusMetaData getStatusMetadata();
  
    /**
     * Request status.
     */
    enum Status {
      Accepted,
      InProgress,
      Complete
    }
  }
  