Sorry, I didn't give enough details of my problem.
I have a participant called finalized , the class is Finalized.
In my test workflow, that looks like this:
Ruote.process_definition :name => 'normal', :revision => '0.1' do
sequence do
lower_case_string
trim_string
write_results_to_log
finalized
end
end
Then my finalized participant is called. I put a debugger there and I am
stopped there.
If I delete the participant from this workflow, so I have this:
Ruote.process_definition :name => 'normal', :revision => '0.1' do
sequence do
lower_case_string
trim_string
write_results_to_log
end
end
BUT I do this:
# @engine.register_participant ....
#
@engine.on_terminate = 'finalized'
#
# @engine.launch ....
Then the participant is not called, debugger will not stop, etc.
This is what I meant by not working.
And yes, for my case I would need that the termination participan run under
the same flow (same wfid) than the others.
On Friday, July 20, 2012 5:20:59 PM UTC+9, John Mettraux wrote:
>
>
> On Thu, Jul 19, 2012 at 11:47:40PM -0700, jordi wrote:
> >
> > Thank you very much for your detailed explanation.
> >
> > For easy of implementation I want to store this information in the same
> > place where the participant is being stored. I really didnt want to make
> a
> > table in a DB.
> > I really liked the approach of using a listener for events but couldn't
> > make it work.
>
> Hello Jordi,
>
> how so? This works well with the "master" ruote:
>
> https://gist.github.com/3149458
>
> What does your code look like?
>
> > I made a participan called finalized and registered it like this
> > @engine.register_participant 'finalized', Ruote::StorageParticipant
> >
> > I am not sure if this is the best thing to do but it will keep the
> workflow
> > in this step forever, so I can always ask for this wfid and get
> 'finalized'
> > as step
> > I have tried this:
> > @engine.on_terminate = 'finalized'
> > but it does not call the participant when the workflow is finalized.
> > When I have the participant 'finalized' in the workflow itself it works.
> >
> > So, I would need to write 'finalized' as last participant in all my
> > workflows. What is not very elegant but I prefer that to the other
> > approaches.
> > Any idea why @engine.on_terminate = 'finalized' does not work?
>
> It works very well. At least for me:
>
> https://gist.github.com/3149472
>
> When I read "couldn't make it work" or "does not work", I'm tempted to
> link
> to:
>
> http://www.chiark.greenend.org.uk/~sgtatham/bugs.html
>
> but the first step is to manage expectations... You're not really
> describing
> what you expect and I'm telling you it's working as expected (why would I
> waste time writing tests else
> https://github.com/jmettraux/ruote/tree/master/test )
>
> What I expect from on_terminate: that, each time a workflow terminates, it
> uses a copy of the workitem of the just terminated flow to either a)
> launch a
> new subflow b) launch a new subflow containing only a call to the named
> participant. I'm not expecting it to append the participant or the subflow
> at
> the end of the terminated (not terminating) flow.
>
> Quoting the documentation:
>
> http://ruote.rubyforge.org/configuration.html
>
> | There are the on_error and the on_cancel attributes common to all
> | expressions. Engine#on_error and #on_terminate are quite close to those,
> but
> | there is an important catch. The on_error attribute will cancel the
> | expression to which it is attached and then run the on_error ‘routine’,
> while
> | Engine#on_error runs independently of the process whose error triggered
> the
> | reaction. Same thing for on_terminate.
>
> I realize there is something bothering with on_terminate: it doesn't
> contain
> the wfid of the flow that just terminated. You can't correlate the
> on_terminate flow with the terminated flow. I have to do something about
> this:
>
> https://github.com/jmettraux/ruote/issues/53
>
> Thanks for making me realize that.
>
>
> Kind regards,
>
> --
> John Mettraux - http://lambda.io/jmettraux
>
>
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