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.utils.local;
  
  import java.io.IOException;
  import java.io.RandomAccessFile;
  import java.nio.channels.FileChannel;
  import java.nio.channels.FileLock;
  
  public class FileOpAppend extends FileOperation {
      public FileOpAppend(String source) {
          super(source);
      }
  
      @Override
      public FileLock run(RandomAccessFile randomAccessFile, FileChannel channel, String json) throws IOException {
          FileLock lock = channel.tryLock(randomAccessFile.length(), json.length(), false);
  
          channel.position(randomAccessFile.length());
  
          randomAccessFile.writeBytes(json);
  
          return lock;
      }
  }
  