public RecordReader<LongWritable, Text>
    getRecordReader(InputSplit genericSplit, JobConf job,
                    Reporter reporter) throws IOException {
    reporter.setStatus(genericSplit.toString());
    return new Rot13LineRecordReader(job, (FileSplit) genericSplit);
  }
A simple input format that does a rot13 on the inputs
itests/util/src/main/java/org/apache/hadoop/hive/ql/io/udf/Rot13InputFormat.java