public void map(LongWritable key, Text value, Context context)
throws IOException, InterruptedException {
String[] columns = value.toString().split(",");
outkey.set(columns[2]);
outvalue.setAmount(Integer.parseInt(columns[3]));
outvalue.setProduct(columns[4]);
outvalue.setTxnDate(columns[1]);
context.write(outkey, outvalue);
}
