[rules-users] please provide a rule for events timeout cases

[Wolfgang Laun]

With this kind of scenario it helps a lot if you retract a matching
pair (R+S, R+F). (If you need the information for further processing,
create another fact.)

And make sure to use '==' when testing for equality!

rule request_success
when
     $req : EventRecord( type == EventRequest, $user: user)
     $resp : EventRecord( type == EventResponseSuccess, user==$user,
                                        this after[0s.10s] $req )
     not EventRecord( type == EventResponseSuccess || == EventResponseFailure,
                                  user == $user, this before $resp )
then
     // success
     retract( $req );
     retract( $resp );
end

-W


On 19/04/2012, skatta1986 <shivaprasad_gdk at yahoo.co.in> wrote:
> Could you please help out me in this...
>
> modified rules: But it is giving thread exception at runtime
>
> rule event_success_case
>  when
>     $req : EventRecord( type=EventRequest, user="katta" )
>     and $resp : EventRecord( type=EventResponseSuccess, user="katta",  this
> after[0s, 10s] $req )
>     and ( not (EventRecord( type=EventResponseSuccess, user="katta",  this
> after[0s, 10s] $req , this before[0s, 10s] $resp)))
>     #and ( not (EventRecord( type=EventResponseSuccess, user="katta", $req
> overlaps this, this overlaps $resp) ))
>  then
>    System.out.println("Success case for user " + $req.getUser());
>     retract($req);
>  end
>
> rule event_failure_case
>  when
>     $req : EventRecord( type=EventRequest, user="katta" )
>     and EventRecord( type=EventResponseFailure, user="katta",  this
> after[0s, 10s] $req )
>     and ( not (EventRecord( type=EventResponseFailure, user="katta",  this
> after[0s, 10s] $req , this before[0s, 10s] $resp)))
>     #and ( not (EventRecord( type=EventResponseFailure, user="katta", $req
> overlaps this, this overlaps $resp) ))
>  then
>    System.out.println("Failed case for user " + $req.getUser());
>    retract($req);
>  end
>
> --
> View this message in context:
> http://drools.46999.n3.nabble.com/please-provide-a-rule-for-events-timeout-cases-tp3907955p3923831.html
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