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.api.checkpoint;
  
  import java.io.IOException;
  import java.io.InputStream;
  import java.io.OutputStream;
  import java.util.List;
  
  /**
   * A checkpoint factory that provides inputstream and outputstream for reading checkpoints.
   */
  public interface CheckpointStore extends AutoCloseable {
  
      List<String> listFiles(String filePath) throws IOException;
  
      boolean fileExists(String filePath) throws IOException;
  
      long getFileLength(String filePath) throws IOException;
  
      InputStream openInputStream(String filePath) throws IOException;
  
      OutputStream openOutputStream(String filePath) throws IOException;
  
      void rename(String srcPath, String destPath) throws IOException;
  
      void deleteRecursively(String srcPath) throws IOException;
  
      void delete(String srcPath) throws IOException;
  
      void createDirectories(String srcPath) throws IOException;
  
      /**
       * Close the checkpoint store.
       */
      @Override
      void close();
  }
  