private static Activity?StartActivity(OutgoingStepContext context)
{
var parentActivity = Activity.Current;
if (parentActivity == null)
{
return(null);
}
Activity?activity = null;
if (RebusDiagnosticConstants.ActivitySource.HasListeners())
{
var message = context.Load <TransportMessage>();
var messageType = message.GetMessageType();
var messageWrapper = new TransportMessageWrapper(message);
var activityKind = messageWrapper.GetIntentOption() == Headers.IntentOptions.PublishSubscribe
? ActivityKind.Producer
: ActivityKind.Client;
var activityName = $"{messageType} send";
var initialTags = TagHelper.ExtractInitialTags(messageWrapper);
// Per the spec on how to handle array types: https://github.com/open-telemetry/opentelemetry-specification/blob/main/specification/common/common.md#attributes
var destinationAddresses = context.Load <DestinationAddresses>();
initialTags.Add("messaging.destination", JsonConvert.SerializeObject(destinationAddresses.ToList()));
// TODO: Transport specific tags, like rabbitmq routing key
activity = RebusDiagnosticConstants.ActivitySource.StartActivity(activityName, activityKind,
parentActivity.Context, initialTags);
TagHelper.CopyBaggage(parentActivity, activity);
// TODO: Figure out if this is actually needed now
// DiagnosticListener.OnActivityImport(activity, context);
}
SendBeforeSendEvent(context);
return(activity);
}
private static Activity?StartActivity(IncomingStepContext context)
{
Activity?activity = null;
if (RebusDiagnosticConstants.ActivitySource.HasListeners())
{
var message = context.Load <TransportMessage>();
var headers = message.Headers;
var messageType = message.GetMessageType();
var messageWrapper = new TransportMessageWrapper(message);
var initialTags = TagHelper.ExtractInitialTags(messageWrapper);
initialTags.Add("messaging.operation", "receive");
var activityKind = messageWrapper.GetIntentOption() == Headers.IntentOptions.PublishSubscribe
? ActivityKind.Consumer
: ActivityKind.Server;
var activityName = $"{messageType} receive";
if (!headers.TryGetValue(RebusDiagnosticConstants.TraceStateHeaderName, out var traceState))
{
activity = RebusDiagnosticConstants.ActivitySource.StartActivity(activityName, activityKind, default(ActivityContext), initialTags);
}
else
{
activity = RebusDiagnosticConstants.ActivitySource.StartActivity(activityName, activityKind,
traceState, initialTags);
}
if (activity != null)
{
CopyBaggage(headers, activity);
}
// TODO: Not sure if this is still needed
// DiagnosticListener.OnActivityImport(activity, context);
}
SendBeforeProcessEvent(context, activity);
return(activity);
}
