Hi all!

I tried out Drools 6.0.0.CR3 and I have some difficulties in detecting patterns with rules containing temporal parameters. I’m using following rule:

rule "detect turn shifts"

agenda-group "evaluation"

salience 100

when

$aae : AudioActivityEvent(value >= 50) from entry-point "LowLevelES"

not(AudioActivityEvent(value < 50, userID == $aae.userID, this after[0, 300ms] $aae) from entry-point "LowLevelES")

then

logger.info("turn shift START, user ID: " + $aae.getUserID() + ", " + $aae.toString());

// do something else ...

end

When inserting events following happens:

12:43:05,914 [main ] DEBUG ReteooRuleBase - Starting Engine in PHREAK mode

12:43:06,225 [main ] INFO SemanticLifter - incoming event: AudioActivityEvent [userID=1, value=100.0]

12:43:06,295 [main ] INFO SemanticLifter - incoming event: AudioActivityEvent [userID=1, value=0.0]

12:43:06,344 [main ] INFO SemanticLifter - incoming event: AudioActivityEvent [userID=1, value=100.0]

12:43:11,096 [main ] INFO SemanticLifter - incoming event: AudioActivityEvent [userID=1, value=0.0]

12:43:11,100 [main ] INFO SemanticLifter - turn shift START, user ID: 1, AudioActivityEvent [userID=1, value=100.0]

...

The “turn shift start” should be detected 300ms after the third incoming event (12:43:06,344) which is not the case here. This rule worked for me when using Drools 5.5.0 and 6.0.0.Beta2 but not with 6.0.0.CR3 - I did not try any other version.

This is my code to insert events:

streamEntryPoint = ksession.getEntryPoint("LowLevelES");

...

streamEntryPoint.insert(lowLevelEvent);

ksession.getAgenda().getAgendaGroup("evaluation").setFocus();

ksession.fireAllRules();

“AudioActivityEvent” is declared as an event with the @role attribute. I also tried to use the following option: “RuleEngineOption.RETEOO”, but with no difference.

Best regards,

Wolfgang