private EventPipeProvider[] GetEventPipeProviders()
{
// EventSources support EventCounter based metrics directly
IEnumerable <EventPipeProvider> eventCounterProviders = _counterList.Providers.Select(
providerName => new EventPipeProvider(providerName, EventLevel.Error, 0, new Dictionary <string, string>()
{
{ "EventCounterIntervalSec", _interval.ToString() }
}));
//System.Diagnostics.Metrics EventSource supports the new Meter/Instrument APIs
const long TimeSeriesValues = 0x2;
StringBuilder metrics = new StringBuilder();
foreach (string provider in _counterList.Providers)
{
if (metrics.Length != 0)
{
metrics.Append(",");
}
if (_counterList.IncludesAllCounters(provider))
{
metrics.Append(provider);
}
else
{
string[] providerCounters = _counterList.GetCounters(provider).Select(counter => $"{provider}\\{counter}").ToArray();
metrics.Append(string.Join(',', providerCounters));
}
}
EventPipeProvider metricsEventSourceProvider =
new EventPipeProvider("System.Diagnostics.Metrics", EventLevel.Informational, TimeSeriesValues,
new Dictionary <string, string>()
{
{ "SessionId", _metricsEventSourceSessionId },
{ "Metrics", metrics.ToString() },
{ "RefreshInterval", _interval.ToString() },
{ "MaxTimeSeries", _maxTimeSeries.ToString() },
{ "MaxHistograms", _maxHistograms.ToString() }
}
);
return(eventCounterProviders.Append(metricsEventSourceProvider).ToArray());
}
