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.asterix.cloud;
  
  import org.apache.asterix.cloud.clients.ICloudGuardian;
  import org.apache.asterix.common.api.INamespacePathResolver;
  import org.apache.asterix.common.cloud.CloudCachePolicy;
  import org.apache.asterix.common.cloud.IPartitionBootstrapper;
  import org.apache.asterix.common.config.CloudProperties;
  import org.apache.hyracks.api.exceptions.HyracksDataException;
  import org.apache.hyracks.api.io.IIOManager;
  import org.apache.hyracks.control.nc.io.IOManager;
  
  public class CloudManagerProvider {
      private CloudManagerProvider() {
      }
  
      public static IIOManager createIOManager(CloudProperties cloudProperties, IIOManager ioManager,
              INamespacePathResolver nsPathResolver, ICloudGuardian guardian) throws HyracksDataException {
          IOManager localIoManager = (IOManager) ioManager;
          if (cloudProperties.getCloudCachePolicy() == CloudCachePolicy.LAZY) {
              return new LazyCloudIOManager(localIoManager, cloudProperties, nsPathResolver, false, guardian);
          }
  
          return new EagerCloudIOManager(localIoManager, cloudProperties, nsPathResolver, guardian);
      }
  
      public static IPartitionBootstrapper getCloudPartitionBootstrapper(IIOManager ioManager) {
          if (!(ioManager instanceof AbstractCloudIOManager)) {
              throw new IllegalArgumentException("Not a cloud IOManager");
          }
          return (IPartitionBootstrapper) ioManager;
      }
  }
  