Microsoft.Azure.EventHubs 4.1: events are not captured by DependencyCollector

[mikhail-anfimau]

EventHub client library now sends shortened versions of the events (i.e. "Send.Start" instead of "Microsoft.Azure.EventHubs.Send.Start" expected by AI.DependencyCollector).

The change is made in the following PR and is available since Microsoft.Azure.EventHubs version 4.1 (see diff):

        public const string DiagnosticSourceName = "Microsoft.Azure.EventHubs";

        public const string SendActivityName = "Send";
        public const string SendActivityStartName = SendActivityName + ".Start";
        public const string SendActivityExceptionName = SendActivityName + ".Exception";

EventHubsDiagnosticsEventHandler.cs still expects fully-qualified names:

        public override void OnEvent(KeyValuePair<string, object> evnt, DiagnosticListener ignored)
        {
            Activity currentActivity = Activity.Current;

            switch (evnt.Key)
            {
                case "Microsoft.Azure.EventHubs.Send.Start":
                case "Microsoft.Azure.EventHubs.Receive.Start":
                    break;
                case "Microsoft.Azure.EventHubs.Send.Stop":
                case "Microsoft.Azure.EventHubs.Receive.Stop":
                    this.OnDependency(evnt.Key, evnt.Value, currentActivity);
                    break;
            }
        }