private async Task <IEnumerable <ScenarioData> > FilterNewSignalsAsync(
IEnumerable <TraceRecord> traceRecords,
NotifyFilter filter,
CancellationToken token)
{
var newSignalsMatchingFilter = new List <ScenarioData>();
foreach (var oneTraceRecord in traceRecords.OrderBy(record => record.TimeStamp))
{
// Encapsulate the new information into a shareable abstraction. We mark the event seen time as current time
// which may not be completely accurate but it's close enough for all purposes.
var scenarioData = new ScenarioData(filter.TargetScenario, oneTraceRecord, DateTime.UtcNow);
if (DateTime.UtcNow - oneTraceRecord.TimeStamp > filter.SignalAvailableForAtLeastDuration)
{
if (!await this.IsSignalAlreadyReportedAsync(scenarioData, token).ConfigureAwait(false))
{
newSignalsMatchingFilter.Add(scenarioData);
}
}
}
return(newSignalsMatchingFilter);
}
private Task <bool> IsSignalAlreadyReportedAsync(ScenarioData signal, CancellationToken token)
{
return(this.reportedSignalsUniqueIdsStore.IsKeyPresentAsync(signal.TraceRecord.GetUniqueId(), token));
}