[jboss-jira] [JBoss JIRA] (DROOLS-953) Rules from declare window refire after deserialization
Kevin Prendergast (JIRA)
issues at jboss.org
Thu Oct 15 22:48:00 EDT 2015
[ https://issues.jboss.org/browse/DROOLS-953?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Kevin Prendergast updated DROOLS-953:
-------------------------------------
Description:
Rules using 'from window length' refire incorrectly after session deserialization.
Full story on usage forum.
https://groups.google.com/forum/#!topic/drools-usage/kTHTVXZznxw
In summary...
Insert facts Event#1, Event#2, Event#3 into a stateful, psuedo clock stream session with...
declare window lastEvent
Event() over window:length(1)
end
rule "Reporting Last Event 1001"
when
$e : Event($eventCode : eventCode == "1001") from window lastEvent
then
log.info("Reporting Last Event 1001 : " + $e);
end
The rule "Reporting Last Event" will refire after deserialization from disk for Events #1+#2
Demonstrated with the attached reproducer window-demo. Run the JUnit test to get this console output...
INFO 17:25:40 [org.kev.KnowledgeSession] creating kcontainer
INFO 17:25:40 [org.drools.compiler.kie.builder.impl.ClasspathKieProject] Found kmodule: file:/C:/Users/Kevin/workspace_luna/window-demo/target/classes/META-INF/kmodule.xml
INFO 17:25:40 [org.drools.compiler.kie.builder.impl.KieRepositoryImpl] KieModule was added: FileKieModule[releaseId=org.kev:window-demo:0.0.1-SNAPSHOT,file=C:\Users\Kevin\workspace_luna\window-demo\target\classes]
INFO 17:25:42 [org.kev.KnowledgeSession] no messages from kContainer
INFO 17:25:42 [org.kev.KnowledgeSession] KieSession sessionDefault is OK {color:#59afe1}INSERTING Event OBJECTS CAUSES RULES TO FIRE NICELY{color}....
INFO 17:25:42 [org.kev.KnowledgeSession] Reporting Last Event 1001 : Event [eventCode=1001, recordedTime=13-10-15 17:25:39.904]
INFO 17:25:42 [org.kev.KnowledgeSession] Event Insert : Event [eventCode=1001, recordedTime=13-10-15 17:25:39.904]
INFO 17:25:42 [org.kev.KnowledgeSession] Rules Fired : 2
INFO 17:25:42 [org.kev.KnowledgeSession] Reporting Last Event 1001 : Event [eventCode=1001, recordedTime=13-10-15 17:25:40.904]
INFO 17:25:42 [org.kev.KnowledgeSession] Event Insert : Event [eventCode=1001, recordedTime=13-10-15 17:25:40.904]
INFO 17:25:42 [org.kev.KnowledgeSession] Rules Fired : 2
INFO 17:25:42 [org.kev.KnowledgeSession] Reporting Last Event 1001 : Event [eventCode=1001, recordedTime=13-10-15 17:25:41.904]
INFO 17:25:42 [org.kev.KnowledgeSession] Event Insert : Event [eventCode=1001, recordedTime=13-10-15 17:25:41.904]
INFO 17:25:42 [org.kev.KnowledgeSession] Rules Fired : 2
INFO 17:25:42 [org.kev.ReplayTests] Fire All Rules Before Save............ {color:#59afe1}NO MESSAGES HERE. SHOWS NO OUTSTANDING RULES TO FIRE IN SESSION.{color}
INFO 17:25:42 [org.kev.ReplayTests] Saving Session............ {color:#59afe1}NOW WE SAVE TO DISK{color}
INFO 17:25:42 [org.kev.KnowledgeSession] Marshalling ksession to disk : C:\Users\Kevin\workspace_luna\window-demo\demo.ks
INFO 17:25:43 [org.kev.ReplayTests] Restoring Session............ {color:#59afe1}AND HERE'S THE RESTORE OF A NEW SESSION FROM DISK{color}
INFO 17:25:43 [org.kev.KnowledgeSession] no messages from kContainer
INFO 17:25:43 [org.kev.KnowledgeSession] KieSession sessionDefault is OK
INFO 17:25:43 [org.kev.KnowledgeSession] Marshall ksession from disk : C:\Users\Kevin\workspace_luna\window-demo\demo.ks
INFO 17:25:43 [org.kev.KnowledgeSession] pseudoClock is recovered to :13-10-15 17:25:41.904 ...{color:#59afe1}ALL GOOD SO FAR, BUT NOW I FIRE ALL RULES{color}
INFO 17:25:43 [org.kev.ReplayTests] Fire All Rules After Restore (1)............{color:#d04437}THESE NEXT MESSAGES ARE UNEXPECTED. IT'S THE FIRST 2 EVENTS THAT I'D ORIGINALLY INSERTED. But, nothing has been inserted since the restore.{color}
INFO 17:25:43 [org.kev.KnowledgeSession] Reporting Last Event 1001 : Event [eventCode=1001, recordedTime=13-10-15 17:25:39.904]
INFO 17:25:43 [org.kev.KnowledgeSession] Reporting Last Event 1001 : Event [eventCode=1001, recordedTime=13-10-15 17:25:40.904]
INFO 17:25:43 [org.kev.ReplayTests] Fire All Rules After Restore (2)............{color:#59afe1}ANOTHER FIRE ALL RULES AND NORMAL BEHAVIOUR RETURNS{color}
Consequence is that RHS fires unexpectedly for facts that have already been handled before serialization.
KP
> Rules from declare window refire after deserialization
> ------------------------------------------------------
>
> Key: DROOLS-953
> URL: https://issues.jboss.org/browse/DROOLS-953
> Project: Drools
> Issue Type: Bug
> Components: core engine
> Affects Versions: 6.3.0.Final
> Reporter: Kevin Prendergast
> Assignee: Mario Fusco
> Priority: Minor
>
> Rules using 'from window length' refire incorrectly after session deserialization.
> Full story on usage forum.
> https://groups.google.com/forum/#!topic/drools-usage/kTHTVXZznxw
> In summary...
> Insert facts Event#1, Event#2, Event#3 into a stateful, psuedo clock stream session with...
> declare window lastEvent
> Event() over window:length(1)
> end
> rule "Reporting Last Event 1001"
> when
> $e : Event($eventCode : eventCode == "1001") from window lastEvent
> then
> log.info("Reporting Last Event 1001 : " + $e);
> end
> The rule "Reporting Last Event" will refire after deserialization from disk for Events #1+#2
> Demonstrated with the attached reproducer window-demo. Run the JUnit test to get this console output...
> INFO 17:25:40 [org.kev.KnowledgeSession] creating kcontainer
> INFO 17:25:40 [org.drools.compiler.kie.builder.impl.ClasspathKieProject] Found kmodule: file:/C:/Users/Kevin/workspace_luna/window-demo/target/classes/META-INF/kmodule.xml
> INFO 17:25:40 [org.drools.compiler.kie.builder.impl.KieRepositoryImpl] KieModule was added: FileKieModule[releaseId=org.kev:window-demo:0.0.1-SNAPSHOT,file=C:\Users\Kevin\workspace_luna\window-demo\target\classes]
> INFO 17:25:42 [org.kev.KnowledgeSession] no messages from kContainer
> INFO 17:25:42 [org.kev.KnowledgeSession] KieSession sessionDefault is OK {color:#59afe1}INSERTING Event OBJECTS CAUSES RULES TO FIRE NICELY{color}....
> INFO 17:25:42 [org.kev.KnowledgeSession] Reporting Last Event 1001 : Event [eventCode=1001, recordedTime=13-10-15 17:25:39.904]
> INFO 17:25:42 [org.kev.KnowledgeSession] Event Insert : Event [eventCode=1001, recordedTime=13-10-15 17:25:39.904]
> INFO 17:25:42 [org.kev.KnowledgeSession] Rules Fired : 2
> INFO 17:25:42 [org.kev.KnowledgeSession] Reporting Last Event 1001 : Event [eventCode=1001, recordedTime=13-10-15 17:25:40.904]
> INFO 17:25:42 [org.kev.KnowledgeSession] Event Insert : Event [eventCode=1001, recordedTime=13-10-15 17:25:40.904]
> INFO 17:25:42 [org.kev.KnowledgeSession] Rules Fired : 2
> INFO 17:25:42 [org.kev.KnowledgeSession] Reporting Last Event 1001 : Event [eventCode=1001, recordedTime=13-10-15 17:25:41.904]
> INFO 17:25:42 [org.kev.KnowledgeSession] Event Insert : Event [eventCode=1001, recordedTime=13-10-15 17:25:41.904]
> INFO 17:25:42 [org.kev.KnowledgeSession] Rules Fired : 2
> INFO 17:25:42 [org.kev.ReplayTests] Fire All Rules Before Save............ {color:#59afe1}NO MESSAGES HERE. SHOWS NO OUTSTANDING RULES TO FIRE IN SESSION.{color}
> INFO 17:25:42 [org.kev.ReplayTests] Saving Session............ {color:#59afe1}NOW WE SAVE TO DISK{color}
> INFO 17:25:42 [org.kev.KnowledgeSession] Marshalling ksession to disk : C:\Users\Kevin\workspace_luna\window-demo\demo.ks
> INFO 17:25:43 [org.kev.ReplayTests] Restoring Session............ {color:#59afe1}AND HERE'S THE RESTORE OF A NEW SESSION FROM DISK{color}
> INFO 17:25:43 [org.kev.KnowledgeSession] no messages from kContainer
> INFO 17:25:43 [org.kev.KnowledgeSession] KieSession sessionDefault is OK
> INFO 17:25:43 [org.kev.KnowledgeSession] Marshall ksession from disk : C:\Users\Kevin\workspace_luna\window-demo\demo.ks
> INFO 17:25:43 [org.kev.KnowledgeSession] pseudoClock is recovered to :13-10-15 17:25:41.904 ...{color:#59afe1}ALL GOOD SO FAR, BUT NOW I FIRE ALL RULES{color}
> INFO 17:25:43 [org.kev.ReplayTests] Fire All Rules After Restore (1)............{color:#d04437}THESE NEXT MESSAGES ARE UNEXPECTED. IT'S THE FIRST 2 EVENTS THAT I'D ORIGINALLY INSERTED. But, nothing has been inserted since the restore.{color}
> INFO 17:25:43 [org.kev.KnowledgeSession] Reporting Last Event 1001 : Event [eventCode=1001, recordedTime=13-10-15 17:25:39.904]
> INFO 17:25:43 [org.kev.KnowledgeSession] Reporting Last Event 1001 : Event [eventCode=1001, recordedTime=13-10-15 17:25:40.904]
> INFO 17:25:43 [org.kev.ReplayTests] Fire All Rules After Restore (2)............{color:#59afe1}ANOTHER FIRE ALL RULES AND NORMAL BEHAVIOUR RETURNS{color}
> Consequence is that RHS fires unexpectedly for facts that have already been handled before serialization.
> KP
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