void runOldMapper(
final JobConf job,
final MRTaskReporter reporter,
final MRInputLegacy input,
final KeyValueWriter output)
throws IOException, InterruptedException {
// Initialize input in-line since it sets parameters which may be used by the processor.
// Done only for MRInput.
// TODO use new method in MRInput to get required info
// input.initialize(job, master);
RecordReader in = new OldRecordReader(input);
OutputCollector collector = new OldOutputCollector(output);
MapRunnable runner = (MapRunnable) ReflectionUtils.newInstance(job.getMapRunnerClass(), job);
runner.run(in, collector, (Reporter) reporter);
// start the sort phase only if there are reducers
this.statusUpdate();
}
