private SamplingResponse ProcessMatchedRule(SamplingRule sampleRule, TimeStamp time)
{
bool shouldSample = true;
Reservoir reservoir = sampleRule.Reservoir;
SamplingResponse sampleResult = null;
sampleRule.IncrementRequestCount(); // increment request counter for matched rule
ReservoirDecision reservoirDecision = reservoir.BorrowOrTake(time, sampleRule.CanBorrow); // check if we can borrow or take from reservoir
if (reservoirDecision == ReservoirDecision.Borrow)
{
sampleRule.IncrementBorrowCount();
}
else if (reservoirDecision == ReservoirDecision.Take)
{
sampleRule.IncrementSampledCount();
}
else if (ThreadSafeRandom.NextDouble() <= sampleRule.GetRate()) // compute based on fixed rate
{
sampleRule.IncrementSampledCount();
}
else
{
shouldSample = false;
}
if (shouldSample)
{
sampleResult = new SamplingResponse(sampleRule.RuleName, SampleDecision.Sampled);
}
else
{
sampleResult = new SamplingResponse(SampleDecision.NotSampled);
}
return(sampleResult);
}