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(); }