Microsoft.AspNet.TelemetryCorrelation

Extensions of Activity class

Http header name to carry the Request ID.

Http header name to carry the correlation context.

Maximum length of Correlation-Context herader value.

Reads Request-Id and Correlation-Context headers and sets ParentId and Baggage on Activity.

Instance of activity that has not been started yet. Request headers collection. true if request was parsed successfully, false - otherwise.

Reads Request-Id and Correlation-Context headers and sets ParentId and Baggage on Activity.

Instance of activity that has not been started yet. Request headers collection. true if request was parsed successfully, false - otherwise.

Activity helper class

Listener name.

Activity name for http request.

Event name for the activity start event.

Event name for the lost activity stop event.

Event name for the restored activity stop event.

Key to store the activity in HttpContext.

Key to store the restored activity in HttpContext.

Stops the activity and notifies listeners about it.

Activity to stop. HttpContext.Items. True if activity was found in the stack, false otherwise.

Notifies listeners that activity was ended and lost during execution.

Activity to notify about. Current HttpContext.

Notifies listeners that there the lost activity was lost during execution and there was an intermediate activity.

Activity to notify about. Current HttpContext.

Creates root (first level) activity that describes incoming request.

Current HttpContext. New root activity.

Saves activity in the HttpContext.Items.

Context to save context to. Slot name. Activity to save.

It's possible that a request is executed in both native threads and managed threads, in such case Activity.Current will be lost during native thread and managed thread switch. This method is intended to restore the current activity in order to correlate the child activities with the root activity of the request.

HttpContext.Items dictionary.

ETW EventSource tracing class.

Instance of the PlatformEventSource class.

Http Module sets ambient state using Activity API from DiagnosticsSource package.

Restores Activity before each pipeline step if it was lost.

HttpContext instance. Step to be executed.