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
   * <p>
   * http://www.apache.org/licenses/LICENSE-2.0
   * <p>
   * 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.atlas.notification.spool;
  
  import org.apache.atlas.notification.spool.utils.local.FileOpAppend;
  import org.apache.atlas.notification.spool.utils.local.FileOpCompaction;
  import org.apache.atlas.notification.spool.utils.local.FileOpDelete;
  import org.apache.atlas.notification.spool.utils.local.FileOpRead;
  import org.apache.atlas.notification.spool.utils.local.FileOpUpdate;
  
  import java.io.File;
  
  public class FileOperations {
      private final String           emptyRecordJson;
      private final FileOpAppend     fileOpAppend;
      private final FileOpRead       fileOpLoad;
      private final FileOpUpdate     fileOpUpdate;
      private final FileOpCompaction fileOpCompaction;
      private final FileOpDelete     fileOpDelete;
  
      public FileOperations(String emptyRecordJson, String source) {
          this.emptyRecordJson  = emptyRecordJson;
          this.fileOpAppend     = new FileOpAppend(source);
          this.fileOpLoad       = new FileOpRead(source);
          this.fileOpUpdate     = new FileOpUpdate(source, fileOpAppend);
          this.fileOpCompaction = new FileOpCompaction(source);
          this.fileOpDelete     = new FileOpDelete(source);
      }
  
      public String[] load(File file) {
          fileOpLoad.perform(file);
  
          return fileOpLoad.getItems();
      }
  
      public void delete(File file, String id) {
          fileOpDelete.perform(file, id, emptyRecordJson);
      }
  
      public void append(File file, String json) {
          fileOpAppend.perform(file, json);
      }
  
      public void compact(File file) {
          fileOpCompaction.perform(file);
      }
  
      public void update(File file, String id, String json) {
          fileOpUpdate.setId(id);
          fileOpUpdate.perform(file, json);
      }
  }
  