private void AsyncRaisesEvent(TEvent evnt, EventObservation <TEvent> observation)
{
Task.Factory.StartNew(() =>
{
observation.EventHandler(evnt);
});
}
private EventObservation <TEvent> NewObservation(Type eventType, SubscriptionId subscriptionId, SourceId sourceId, Action <TEvent> eventHandler)
{
Log.Debug("Acquired lock to ActiveObservations at method NewSubscriptionFor(...)");
var observation = new EventObservation <TEvent>(eventType, subscriptionId, sourceId, eventHandler);
lock (ActiveObservations)
{
ActiveObservations[new Tuple <Type, SubscriptionId, SourceId>(eventType, subscriptionId, sourceId)] = observation;
}
Log.Debug("Released lock to ActiveObservations at method NewSubscriptionFor(...)");
return(observation);
}
private void RemoveObservation(EventObservation <TEvent> observation)
{
if (observation == null)
{
return;
}
Log.Debug("Acquired lock to ActiveObservations at method RemoveSubscription(...)");
lock (ActiveObservations)
{
ActiveObservations.Remove(new Tuple <Type, SubscriptionId, SourceId>(observation.EventType, observation.SubscriptionId, observation.SourceId));
}
Log.Debug("Released lock to ActiveObservations at method RemoveSubscription(...)");
}
private EventObservation <TEvent> ExistingObservation(Type eventType, SubscriptionId subscriptionId, SourceId sourceId)
{
Log.Debug("Acquired lock to ActiveObservations at method ExistingSubscriptionFor(...)");
try
{
lock (ActiveObservations)
{
EventObservation <TEvent> observation = null;
ActiveObservations.TryGetValue(new Tuple <Type, SubscriptionId, SourceId>(eventType, subscriptionId, sourceId), out observation);
return(observation);
}
}
catch (Exception e)
{
Log.Error(String.Format("Exception at method ExistingSubscriptionFor(...) - messageType '{0}' subscription '{1}' source {2}", eventType, subscriptionId, sourceId), e);
throw e;
}
finally
{
Log.Debug("Released lock to ActiveObservations at method ExistingSubscriptionFor(...)");
}
}
public void Observe(EventObservation <TEvent> eventObservation)
{
Observe(eventObservation.EventType, eventObservation.EventHandler, eventObservation.SubscriptionId, eventObservation.SourceId);
}
