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 org.apache.atlas.notification.spool.SpoolUtils;
  import org.apache.commons.lang.StringUtils;
  import org.slf4j.Logger;
  import org.slf4j.LoggerFactory;
  
  import java.io.IOException;
  import java.io.RandomAccessFile;
  import java.nio.channels.FileChannel;
  import java.nio.channels.FileLock;
  
  public class FileOpRead extends FileOperation {
      private static final Logger LOG = LoggerFactory.getLogger(FileOpRead.class);
  
      private String[] items;
  
      public FileOpRead(String source) {
          super(source);
      }
  
      @Override
      public FileLock run(RandomAccessFile randomAccessFile, FileChannel channel, String json) throws IOException {
          items = null;
  
          byte[] bytes = new byte[(int) randomAccessFile.length()];
  
          randomAccessFile.readFully(bytes);
  
          int    rawRecords = 0;
          String allRecords = new String(bytes);
  
          if (StringUtils.isNotEmpty(allRecords)) {
              items = StringUtils.split(allRecords, SpoolUtils.getLineSeparator());
  
              if (items != null) {
                  rawRecords = items.length;
              }
          }
  
          LOG.info("FileOpRead.run(source={}): loaded file {}, raw records={}", this.getSource(), this.getFile().getAbsolutePath(), rawRecords);
  
          return null;
      }
  
      public String[] getItems() {
          return items;
      }
  }
  