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.bookkeeper.statelib.impl.rocksdb;
  
  import java.io.File;
  import lombok.AccessLevel;
  import lombok.NoArgsConstructor;
  import org.rocksdb.AbstractImmutableNativeReference;
  
  /**
   * Utils for interacting with rocksdb classes.
   */
  @NoArgsConstructor(access = AccessLevel.PRIVATE)
  public final class RocksUtils {
  
      public static void close(AbstractImmutableNativeReference ref) {
          if (null == ref) {
              return;
          }
          ref.close();
      }
  
      public static boolean isSstFile(File file) {
          return file.getName().endsWith(".sst");
      }
  
      public static String getDestCheckpointsPath(String dbPrefix) {
          return String.format("%s/checkpoints", dbPrefix);
      }
  
      public static String getDestCheckpointPath(String dbPrefix, String checkpointId) {
          return String.format("%s/checkpoints/%s", dbPrefix, checkpointId);
      }
  
      public static String getDestCheckpointMetadataPath(String dbPrefix, String checkpointId) {
          return String.format("%s/checkpoints/%s/metadata", dbPrefix, checkpointId);
      }
  
      public static String getDestSstsPath(String dbPrefix) {
          return String.format("%s/ssts", dbPrefix);
      }
  
      public static String getDestSstPath(String dbPrefix, File file) {
          return String.format("%s/ssts/%s", dbPrefix, file.getName());
      }
  
      public static String getDestSstPath(String dbPrefix, String cksum, File file) {
          return String.format("%s/ssts/%s-%s", dbPrefix, file.getName(), cksum);
      }
  
      public static String getDestSstPath(String dbPrefix, String fileName) {
          return String.format("%s/ssts/%s", dbPrefix, fileName);
      }
  
      public static String getDestTempSstPath(String dbPrefix, String checkpointId, File file) {
          return String.format("%s/checkpoints/%s/%s", dbPrefix, checkpointId, file.getName());
      }
  
      public static String getDestPath(String dbPrefix,
                                       String checkpointId,
                                       File file) {
          return String.format("%s/checkpoints/%s/%s", dbPrefix, checkpointId, file.getName());
      }
  
      public static String getDestPath(String dbPrefix,
                                       String checkpointId,
                                       String fileName) {
          return String.format("%s/checkpoints/%s/%s", dbPrefix, checkpointId, fileName);
      }
  
  }
  