* composite counters.
*/
private GaugeCounter nextCurrentCounter() {
ReadableDateTime now = new DateTime();
GaugeCounter gaugeCounter = gaugeCounterFactory.create(
now, now.toDateTime().plusSeconds(6)
);
allTimeCounter.addEventCounter(gaugeCounter);
hourCounter.addEventCounter(gaugeCounter);
tenMinuteCounter.addEventCounter(gaugeCounter);