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 com.alibaba.jstorm.hdfs.spout;
  
  import org.apache.hadoop.fs.Path;
  
  import java.io.IOException;
  import java.util.List;
  
  interface FileReader {
    Path getFilePath();
  
    /**
     * A simple numeric value may not be sufficient for certain formats consequently
     * this is a String.
     */
    FileOffset getFileOffset();
  
    /**
     * Get the next tuple from the file
     *
     * @return null if no more data
     * @throws IOException
     */
    List<Object> next() throws IOException, ParseException;
  
    void close();
  }
  