[rules-users] Drools Flow 5.1.0.M1 - Human Task - How to get the WorkItem change state after restart of MinaTaskServer

[Kris Verlaenen]

Still under development:
https://jira.jboss.org/jira/browse/JBRULES-2002

Kris

Quoting Vijay K Pandey <VPandey at mdes.ms.gov>:

> Kris,
> 
> Should I look into the latest snapshot regarding this? Is something
> already in place or will it be in some future releases?
> 
> Thanks
> Vijay
> -----Original Message-----
> From: rules-users-bounces at lists.jboss.org
> [mailto:rules-users-bounces at lists.jboss.org] On Behalf Of Kris
> Verlaenen
> Sent: Friday, November 13, 2009 10:04 AM
> To: Rules Users List; Vijay K Pandey
> Subject: Re: [rules-users] Drools Flow 5.1.0.M1 - Human Task - How to
> get the WorkItem change state after restart of MinaTaskServer
> 
> Vijay,
> 
> The current implementation of the communication between the human
> task
> service and the engine is indeed not error-safe.  We are currently
> working on making a more stable communication foundation (where
> different communication technologies could be used) to solve this
> issue.
> 
> Kris
> 
> Quoting Vijay K Pandey <VPandey at mdes.ms.gov>:
> 
> > Hi,
> >
> > I have the following simple process having the WSHT 'HumanTask'
> > (Drools Flow 5.1.0.M1)
> >
> > Start Node--> Human Task --> End Node
> >
> > Under the following scenario:
> >
> > a)       MinaTaskServer service is started
> > b)       Drools Flow Process is started - as it reaches the Human
> > Task ( having 'Wait for completion' as true) - following 4
> commands
> > are executed on the mina service
> >                                                                i.
> >  AddTaskRequest ---> This basically creates the task in the WSHT
> task
> > tables
> >                                                              ii.
> > RegisterForEventRequest --> This is called 3 times to register for
> > following task events (TaskCompletedEvent, TaskFailedEvent,
> > TaskSkippedEvent)
> > c)       I guess the above 3 events (b ii) are registered for a
> > callback to the Drools process so that the 'work item' (related to
> > Human Task) state can be properly changed when the above 3 task
> event
> > occurs - and the drools process can move forward.
> >
> > Now my question is what if the Mina service has to be stopped in
> > between (task has been created but not yet reached the completed
> > status) - then we lose all the registered events (as these are not
> > persistent events) - now when we restart the Mina service we query
> > the task - and let's say we changed the state through "Reserved-->
> > InProgress-->Completed".  Now since the registered events are
> lost,
> > how does the work item will be marked as "completed" (as the
> > associated WSHT task has completed) so that the drools process can
> > move forward - basically end in this case?
> >
> > Any insight will be highly appreciated.
> >
> > Thanks
> > Vijay
> >
> >
> 
> 
> 
> 
> Disclaimer: http://www.kuleuven.be/cwis/email_disclaimer.htm
> _______________________________________________
> rules-users mailing list
> rules-users at lists.jboss.org
> https://lists.jboss.org/mailman/listinfo/rules-users
> _______________________________________________
> rules-users mailing list
> rules-users at lists.jboss.org
> https://lists.jboss.org/mailman/listinfo/rules-users
> 




Disclaimer: http://www.kuleuven.be/cwis/email_disclaimer.htm