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 com.cloud.storage;
  
  import com.cloud.utils.exception.CloudRuntimeException;
  
  
  public enum DataStoreRole {
      Primary("primary"), Image("image"), ImageCache("imagecache"), Backup("backup"), Object("object");
  
      public boolean isImageStore() {
          return (role.equalsIgnoreCase("image") || role.equalsIgnoreCase("imagecache")) ? true : false;
      }
  
      private final String role;
  
      DataStoreRole(String type) {
          role = type;
      }
  
      public static DataStoreRole getRole(String role) {
          if (role == null) {
              throw new CloudRuntimeException("role can't be empty");
          }
          if (role.equalsIgnoreCase("primary")) {
              return Primary;
          } else if (role.equalsIgnoreCase("image")) {
              return Image;
          } else if (role.equalsIgnoreCase("imagecache")) {
              return ImageCache;
          } else if (role.equalsIgnoreCase("backup")) {
              return Backup;
          } else if (role.equalsIgnoreCase("object")) {
              return Object;
          } else {
              throw new CloudRuntimeException("can't identify the role");
          }
      }
  }
  