public KeyImpression BuildImpression(string matchingKey, string feature, string treatment, long time, long?changeNumber, string label, string bucketingKey)
{
var impression = new KeyImpression(matchingKey, feature, treatment, time, changeNumber, label, bucketingKey);
if (_addPreviousTime && _impressionsObserver != null)
{
impression.previousTime = _impressionsObserver.TestAndSet(impression);
}
if (_optimized)
{
_impressionsCounter.Inc(feature, time);
}
return(impression);
}
