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 java.util.List;
  import java.util.Set;
  
  import org.apache.asterix.common.cloud.IPartitionBootstrapper;
  import org.apache.asterix.common.transactions.IRecoveryManager;
  import org.apache.asterix.common.utils.StoragePathUtil;
  import org.apache.hyracks.api.exceptions.HyracksDataException;
  import org.apache.hyracks.api.io.FileReference;
  import org.apache.hyracks.api.io.IIOManager;
  import org.apache.logging.log4j.LogManager;
  import org.apache.logging.log4j.Logger;
  
  public class LocalPartitionBootstrapper implements IPartitionBootstrapper {
      private static final Logger LOGGER = LogManager.getLogger();
      private final IIOManager ioManager;
  
      public LocalPartitionBootstrapper(IIOManager ioManager) {
          this.ioManager = ioManager;
      }
  
      @Override
      public IRecoveryManager.SystemState getSystemStateOnMissingCheckpoint() {
          //The checkpoint file doesn't exist => Failure happened during NC initialization.
          //Retry to initialize the NC by setting the state to PERMANENT_DATA_LOSS
          LOGGER.info("The checkpoint file doesn't exist: systemState = PERMANENT_DATA_LOSS");
          return IRecoveryManager.SystemState.PERMANENT_DATA_LOSS;
      }
  
      @Override
      public void bootstrap(Set<Integer> activePartitions, List<FileReference> currentOnDiskPartitions,
              boolean metadataNode, int metadataPartition, boolean ensureCompleteBootstrap) throws HyracksDataException {
          for (FileReference onDiskPartition : currentOnDiskPartitions) {
              int partitionNum = StoragePathUtil.getPartitionNumFromRelativePath(onDiskPartition.getAbsolutePath());
              if (!activePartitions.contains(partitionNum)) {
                  LOGGER.warn("deleting partition {} since it is not on partitions to keep {}", partitionNum,
                          activePartitions);
                  ioManager.delete(onDiskPartition);
              }
          }
      }
  }
  