/// <summary>
/// Returns the event-weighted count of a <see cref="PIPoint"/> over the requested <see cref="AFTimeRange"/>.
/// </summary>
/// <param name="tag">A PIPoint</param>
/// <param name="timeRange">An AFTimeRange</param>
/// <returns>A scalar int of the events within the time range.</returns>
public static async Task <int> GetEventCountAsync(this PIPoint tag, AFTimeRange timeRange, CancellationToken cancellationToken = default(CancellationToken))
{
var summaries = await tag.SummaryAsync(timeRange,
AFSummaryTypes.Count,
AFCalculationBasis.EventWeighted,
AFTimestampCalculation.Auto,
cancellationToken).ConfigureAwait(continueOnCapturedContext: false);
cancellationToken.ThrowIfCancellationRequested();
AFValue summary;
if (summaries.TryGetValue(AFSummaryTypes.Count, out summary))
{
if (summary.IsGood)
{
// One day this may have to be an Int64 or long
return(Convert.ToInt32(summary.Value));
}
}
return(0);
}