New rule engine: Rule failure event?

[danchom]

smhgit commented on Nov 4
Currently there are two events which are posted: RUNNING & IDLE. I thought of using them to give some notification to the user. The issue is that if there is a failure in the action execution it is not exposed.
Is there currently a way to know if the execution has failed?
(I thought of adding RuleStatusDetail to the IDLE event when it is posted or adding FAILURE event).

dnobel commented on Nov 5
I think what we first need here is the notification concept for ESH. This is discussed here https://www.eclipse.org/forums/index.php/t/1070058/ and there also is an initial PR eclipse#459
So I think we should skip the discussion for later. But in general it makes sense to have notifications for failures in rule execution.

dnobel commented on Nov 5
I will mark this stuff with the "enhancement" label. Means it will not be part of the initial PR and we have to move this issues later to ESH or start a forum discussion.

[kaikreuzer]

@smhgit: I am not completely sure what a "failure" exactly means in this context - I therefore assume we talk about unexpected exceptions happening in the module handlers.

In that situation, I would suggest to catch the exception, stop further execution of the rule and set its status to IDLE with a status details of the exception message.