public void ChangeObserved(DataEventArgs @event)
{
log4net.LogicalThreadContext.Properties["TransactionId"] = @event.SourceTransactionId;
_log.Debug($"Change Observed Event='{@event.SourceApiName}'");
OperationStartedEvent?.Invoke(Operation.ChangeObserved, @event.SourceTransactionId, @event, null);
//Find all subscribers and then put the notification in the queue
using (var subscriberQueue = DependencyContainer.Resolve <ISubscriberQueue>())
{
var allSubscribers = GetSubscriberForEvent(@event.SourceApiName);
if (allSubscribers == null)
{
_log.Warn($"No subscribers found for the SourceApiName={@event.SourceApiName}. Maybe it is disabled? This event will now be considered as handled so it does not fill up the queue.");
}
else
{
//For each subscriber referenced put the notification in the queue.
foreach (var subscriber in allSubscribers)
{
subscriberQueue.SubscriberNotification(new SubscriberNotification()
{
Event = @event,
CreatedDate = DateTime.Now,
Subscriber = subscriber
});
}
}
}
OperationEndedEvent?.Invoke(Operation.ChangeObserved, @event.SourceTransactionId, null, @event, null);
}
public void SubscriberNotification(SubscriberNotification notification)
{
log4net.LogicalThreadContext.Properties["TransactionId"] = notification.Event.SourceTransactionId;
_log.Info($"Notifying Subscriber='{notification.Subscriber.SubscriberName}' via Workflow='{notification.Subscriber.WorkFlowType.FullName}' IdleAction={IdleAction}");
using (ApplicationHelper application = new ApplicationHelper(notification.Subscriber.GetActivity(), notification.Subscriber.GetIdentity(), notification.Event, notification.Subscriber))
{
application.IdleAction = IdleAction;
if (OperationEndedEvent != null)
{
application.ActivityStartedEvent += (Guid instanceId, System.Activities.Activity activity) =>
{
OperationStartedEvent?.Invoke(Operation.SubscriberNotification, notification.Event.SourceTransactionId, notification, instanceId.ToString());
};
application.ActivityUnhandledExceptionEvent += (System.Activities.WorkflowApplicationUnhandledExceptionEventArgs args) =>
{
OperationEndedEvent?.Invoke(Operation.SubscriberNotification, notification.Event.SourceTransactionId, args.UnhandledException, notification, args.InstanceId.ToString());
};
application.ActivityCompletedEvent += (System.Activities.WorkflowApplicationCompletedEventArgs args) =>
{
OperationEndedEvent?.Invoke(Operation.SubscriberNotification, notification.Event.SourceTransactionId, null, notification, args.InstanceId.ToString());
};
}
application.Run();
}
}
