public void reset() {
snapshot = new CounterMetric();
counter = new AtomicLong(0);
totalCount = 0L;
startTime = clock.getCurrentTime();
lastReportTime = 0L;
}
public CounterMetric calculateMetric() {
long lastCount = counter.getAndSet(0);
long currentTime = clock.getCurrentTime();
CounterMetric metric = new CounterMetric();
totalCount += lastCount;
long totalElapsed = currentTime - startTime;
metric.meanRate = (totalCount * 1000) / totalElapsed;
metric.lastCount = lastCount;
metric.totalCount = totalCount;
long elapsed = currentTime - lastReportTime;
if (elapsed > 0) {
metric.lastRate = (lastCount * 1000) / elapsed;
}
lastReportTime = currentTime;
snapshot = metric;
return metric;
}