Reading Hadoop SequenceFile from Pig

A trick to read SequenceFile generated by Hadoop into Pig:


public class SequenceFileStorage implements LoadFunc {

protected SequenceFileRecordReader reader;

public SequenceFileStorage() {}

public void bindTo(String fileName, BufferedPositionedInputStream in, long offset, long end) throws IOException {         
          Path file = new Path(fileName);
          FileSplit split = new FileSplit(file, offset, end-offset, new JobConf());
          reader = new SequenceFileRecordReader(new Configuration(), split);
  }

  public Tuple getNext() throws IOException {
          MyKey key = new MyKey();
          MyValue value = new MyValue();
    
          if (! reader.next(key, listing)) {
                  reader.close();
                  return null;              
          }
    
          Tuple tuple = new Tuple();
          tuple.appendField(value.getData());
    
          return tuple;
  } 
}