MRInputLegacy mrInput = (MRInputLegacy) li;
mrInput.init();
OnFileUnorderedKVOutput kvOutput = (OnFileUnorderedKVOutput) lo;
Configuration updatedConf = mrInput.getConfigUpdates();
Text srcFile = new Text();
srcFile.set("UNKNOWN_FILENAME_IN_PROCESSOR");
if (updatedConf != null) {
String fileName = updatedConf.get(MRJobConfig.MAP_INPUT_FILE);
if (fileName != null) {
LOG.info("Processing file: " + fileName);
srcFile.set(fileName);
}
}
KeyValueReader kvReader = mrInput.getReader();
KeyValueWriter kvWriter = kvOutput.getWriter();
while (kvReader.next()) {
Object key = kvReader.getCurrentKey();
Object val = kvReader.getCurrentValue();