internal static EventTelemetry ToTelemetry([NotNull] this BbTelemetryEvent @event)
{
try
{
var tEvent = new EventTelemetry
{
Name = @event.GetType().Name,
Timestamp = DateTimeOffset.Now
};
tEvent.SetCorrelation(@event);
@event.CopyPropertiesInto(tEvent.Properties);
return(tEvent);
}
catch (Exception ex)
{
#if DEBUG
if (Debugger.IsAttached)
{
throw;
}
#endif
BigBrother.PublishError(ex);
return(null);
}
}
/// <summary>
/// Handles external events that are fired by the <see cref="InternalStream"/>.
/// </summary>
/// <param name="event">The event being handled.</param>
internal virtual void HandleInternalEvent(BbTelemetryEvent @event)
{
switch (@event)
{
case BbExceptionEvent ex:
var tEvent = ex.ToTelemetry();
if (tEvent == null)
{
return;
}
tEvent.SeverityLevel = SeverityLevel.Error;
InternalClient.TrackException(tEvent);
break;
case BbTimedEvent te:
InternalClient.TrackEvent(te.ToTelemetry());
break;
default:
InternalClient.TrackEvent(@event.ToTelemetry());
break;
}
}
/// <summary>
/// Populates the Id and CorrelationVector on any <see cref="ITelemetry"/> object with
/// what it can find on the base <see cref="BbTelemetryEvent"/>.
/// </summary>
/// <param name="telemetry">The <see cref="ITelemetry"/> object that we want to populate with correlation data.</param>
/// <param name="event">The base event we are transforming to the AI object.</param>
public static void SetCorrelation([NotNull] this ITelemetry telemetry, [NotNull] BbTelemetryEvent @event)
{
var vector = @event.CorrelationVector;
if (vector == null)
{
return;
}
telemetry.Context.Operation.CorrelationVector = vector;
telemetry.Context.Operation.Id = vector;
}
public void Ensure_NullCorrelation_DoesntPopulate()
{
const string correlationVector = null;
var tEvent = new EventTelemetry();
var bbEvent = new BbTelemetryEvent
{
CorrelationVector = correlationVector
};
tEvent.SetCorrelation(bbEvent);
tEvent.Context.Operation.CorrelationVector.Should().BeNull();
tEvent.Context.Operation.Id.Should().BeNull();
}
public void Test_EventTelemetry_OperationIsPoPulated()
{
const string correlationVector = "SOMEIDHERE.1.3";
var tEvent = new EventTelemetry();
var bbEvent = new BbTelemetryEvent
{
CorrelationVector = correlationVector
};
tEvent.SetCorrelation(bbEvent);
tEvent.Context.Operation.CorrelationVector.Should().Be(correlationVector);
tEvent.Context.Operation.Id.Should().Be(correlationVector);
}
/// <summary>
/// Deals with all the details of setting up the correlation vector inside the event object.
/// </summary>
/// <param name="event">The event that we want to correlate through.</param>
/// <param name="correlation">The correlation handle used to correlate.</param>
internal void SetupCorrelation(BbTelemetryEvent @event, object correlation)
{
if (correlation != null) // lose > strict, so we override strict if a lose is passed in
{
if (CorrelationHandles.ContainsKey(correlation))
{
@event.CorrelationVector = CorrelationHandles[correlation].Vector;
CorrelationHandles[correlation].Touch();
}
else
{
var handle = new CorrelationHandle(DefaultCorrelationKeepAlive);
CorrelationHandles.Add(correlation, handle);
@event.CorrelationVector = handle.Vector;
}
}
else if (Handle != null)
{
@event.CorrelationVector = Handle.Vector;
}
}
