private static IObservable <TraceEvent[]> SaveServerTraceMessages(this XafApplication application)
{
return(application.BufferUntilCompatibilityChecked(TraceEventReceiver.TraceEvent)
.Buffer(TimeSpan.FromSeconds(2)).WhenNotEmpty()
.TakeUntil(application.WhenDisposed())
.Select(list => {
return application.ObjectSpaceProvider.ToObjectSpace()
.SelectMany(space => space.SaveTraceEvent(list)).ToEnumerable().ToArray();
}));
}