How to use

incrBy

method

in

backtype.storm.metric.api.CountMetric

@Override
public void incrBy(String scopeName, int length) {
  countMetric.scope(scopeName).incrBy(length);
}

@SuppressWarnings("unchecked")
@Override
public List<T> multiGet(List<List<Object>> keys) {
  try {
    List<T> values = new ArrayList<T>();
    for (List<Object> rowKey : keys) {
      Statement statement = mapper.retrieve(rowKey);
      ResultSet results = session.execute(statement);
      // TODO: Better way to check for empty results besides accessing entire results list
      Iterator<Row> rowIter = results.iterator();
      Row row;
      if (results != null && rowIter.hasNext() && (row = rowIter.next()) != null) {
        if (rowIter.hasNext()) {
          LOG.error("Found non-unique value for key [{}]", rowKey);
        } else {
          values.add((T) mapper.getValue(row));
        }
      } else {
        values.add(null);
      }
    }
    _mreads.incrBy(values.size());
    LOG.debug("Retrieving the following keys: {} with values: {}", keys, values);
    return values;
  } catch (Exception e) {
    checkCassandraException(e);
    throw new IllegalStateException("Impossible to reach this code");
  }
}

  _mwrites.incrBy(statements.size());
} catch (Exception e) {
  checkCassandraException(e);

private void fill() {
  long start = System.nanoTime();
  ByteBufferMessageSet msgs = KafkaUtils.fetchMessages(_spoutConfig, _consumer, _partition, _emittedToOffset);
  long end = System.nanoTime();
  long millis = (end - start) / 1000000;
  _fetchAPILatencyMax.update(millis);
  _fetchAPILatencyMean.update(millis);
  _fetchAPICallCount.incr();
  int numMessages = countMessages(msgs);
  _fetchAPIMessageCount.incrBy(numMessages);
  if (numMessages > 0) {
    LOG.info("Fetched " + numMessages + " messages from: " + _partition);
  }
  for (MessageAndOffset msg : msgs) {
    _pending.add(_emittedToOffset);
    _waitingToEmit.add(new MessageAndRealOffset(msg.message(), _emittedToOffset));
    _emittedToOffset = msg.nextOffset();
  }
  if (numMessages > 0) {
    LOG.info("Added " + numMessages + " messages from: " + _partition + " to internal buffers");
  }
}