context.write(outputKey, Collections.singletonList(getMutation(word, sum)));
}
private static Mutation getMutation(Text word, int sum)
{
Column c = new Column();
byte[] wordBytes = word.getBytes();
c.name = ByteBuffer.wrap(Arrays.copyOf(wordBytes, wordBytes.length));
c.value = ByteBuffer.wrap(String.valueOf(sum).getBytes());
c.timestamp = System.currentTimeMillis() * 1000;