public async Task Handle(SpanEndedDomainEvent notification, CancellationToken cancellationToken)
{
if (this.exporters != null && notification?.Span != null)
{
// https://github.com/open-telemetry/opentelemetry-dotnet/blob/master/src/OpenTelemetry.Exporter.Zipkin/ZipkinTraceExporter.cs
// TODO: queue some spans before exporting (threshold)
foreach (var exporter in this.exporters)
{
await exporter.ExportAsync(new[] { notification.Span }, cancellationToken).AnyContext();
}
}
}
public Task Handle(SpanEndedDomainEvent notification, CancellationToken cancellationToken)
{
if (notification?.Span != null)
{
using (this.logger.BeginScope(new Dictionary <string, object>()
{
// map Span to LogTrace properties
[LogPropertyKeys.TrackType] = LogTrackTypes.Trace,
[LogPropertyKeys.TrackName] = notification.Span.OperationName,
[LogPropertyKeys.TrackTraceId] = notification.Span.TraceId,
[LogPropertyKeys.TrackId] = notification.Span.SpanId,
[LogPropertyKeys.TrackParentId] = notification.Span.ParentSpanId,
[LogPropertyKeys.TrackKind] = notification.Span.Kind?.ToString(),
[LogPropertyKeys.TrackStatus] = notification.Span.Status?.ToString(),
[LogPropertyKeys.TrackStatusDescription] = notification.Span.StatusDescription,
[LogPropertyKeys.TrackStartTime] = notification.Span.StartTime?.ToString("o"),
[LogPropertyKeys.TrackEndTime] = notification.Span.EndTime?.ToString("o")
// TODO: map all TAGS/LOGS/BAG
}))
{
try
{
this.logger.Log(LogLevel.Information, $"{{LogKey:l}} {notification.Span.OperationName:l}", notification.Span.LogKey);
}
catch (AggregateException ex) // IndexOutOfRangeException
{
if (ex.InnerException is IndexOutOfRangeException)
{
this.logger.Log(LogLevel.Warning, $"{{LogKey:l}} {notification.Span.OperationName:l}");
}
else
{
throw;
}
}
}
}
return(Task.CompletedTask);
}
public Task Handle(SpanEndedDomainEvent notification, CancellationToken cancellationToken)
{
if (notification?.Span != null)
{
var duration = TimeSpan.Zero;
if (notification.Span.EndTime.HasValue && notification.Span.StartTime.HasValue)
{
duration = notification.Span.EndTime.Value - notification.Span.StartTime.Value;
}
if (notification.Span.Status == SpanStatus.Failed)
{
this.logger.LogError($"{{LogKey:l}} span failed: {notification.Span.OperationName} (id={notification.Span.SpanId}, parent={notification.Span.ParentSpanId}, kind={notification.Span.Kind}) {notification.Span.StatusDescription} -> took {duration.Humanize()}", LogKeys.Tracing);
}
else
{
this.logger.LogDebug($"{{LogKey:l}} span finished: {notification.Span.OperationName} (id={notification.Span.SpanId}, parent={notification.Span.ParentSpanId}, kind={notification.Span.Kind}) {notification.Span.StatusDescription} -> took {duration.Humanize()}", LogKeys.Tracing);
}
}
return(Task.CompletedTask);
}
public bool CanHandle(SpanEndedDomainEvent notification)
{
return(notification?.Span != null);
}