@Override
public RecordReader<Text, Text> createRecordReader(InputSplit inputSplit, TaskAttemptContext context) {
AegSplit split = null;
if (inputSplit instanceof AegCombinedSplit) {
return new CombineSSTableReader();
}
split = (AegSplit) inputSplit;
RecordReader<Text, Text> reader = null;
switch (split.getType()) {
case json: