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.FileSystem;
  import org.apache.hadoop.fs.Path;
  
  
  abstract class AbstractFileReader implements FileReader {
  
    private final Path file;
  
    public AbstractFileReader(FileSystem fs, Path file) {
      if (fs == null ) {
        throw new IllegalArgumentException("filesystem arg cannot be null for reader");
      }
      if (file == null ) {
        throw new IllegalArgumentException("file arg cannot be null for reader");
      }
      this.file = file;
    }
  
    @Override
    public Path getFilePath() {
      return file;
    }
  
  
    @Override
    public boolean equals(Object o) {
      if (this == o) { return true; }
      if (o == null || getClass() != o.getClass()) { return false; }
  
      AbstractFileReader that = (AbstractFileReader) o;
  
      return !(file != null ? !file.equals(that.file) : that.file != null);
    }
  
    @Override
    public int hashCode() {
      return file != null ? file.hashCode() : 0;
    }
  
  }
  