Re: [rules-users] Problem with PKG from guvnor
Good to hear that. Thanks Demian.
Question - I am new to drools/guvnor so never used the
EventProcessingOption.STREAM processing mode.
From the drools 5.5 api, I read the following , could you discuss the
benefits of the STREAM processing mode from your experience?
It says When STRAEM mode used the engine performs a few optimisations like:
reasoning over absence of events (NOT CE), automatically adds an appropriate
duration attribute to the rule in order to avoid early rule firing.
memory management techniques may be employed when an event no longer can
match other events due to session clock continuous increment.
Thanks,
Genene
From: rules-users-boun...@lists.jboss.org
[mailto:rules-users-boun...@lists.jboss.org] On Behalf Of Demian Calcaprina
Sent: Tuesday, August 27, 2013 1:17 PM
To: Rules Users List
Subject: Re: [rules-users] Problem with PKG from guvnor
Thanks Genene.
In fact I was able to get the cause of my issue. I created a ticket with the
explanation and a pull request with a possible solution.
https://issues.jboss.org/browse/DROOLS-243
Thanks,
Demian
On Tue, Aug 27, 2013 at 12:26 PM, Genene Geda
gg...@ghx.commailto:gg...@ghx.com wrote:
Hi-,
I think I had similar issue and resolved by looking at one of these:
1. How the changes set is loaded:
Resource changeset = ResourceFactory.newFileResource(changeSetFilePath);
//.newClassPathResource(changeSetPath);
2.If the package not yet built, In GUVNOR, I go to 'knowledgebase'/ click on
you package/click on the 'edit' tab on the right/ click build package ( I also
do create snapshot but may not be necessary ).
See if it helps.
G-
-Original Message-
From:
rules-users-boun...@lists.jboss.orgmailto:rules-users-boun...@lists.jboss.org
[mailto:rules-users-boun...@lists.jboss.orgmailto:rules-users-boun...@lists.jboss.org]
On Behalf Of calcacuervo
Sent: Monday, August 26, 2013 10:26 PM
To: rules-users@lists.jboss.orgmailto:rules-users@lists.jboss.org
Subject: [rules-users] Problem with PKG from guvnor
Hi Guys,
I am having a problem using Drools 5.5.
Basically, I have a ksession in stream mode.
I have a rule with an event, like this
when
myfact: EventA( main 21 ) over window:length (1)
myfact2 : EventA( main = 21 , this before myfact ) over window:length
(2)
I also use a KnowledgeAgent and apply a changeset.
If I declare this rule directly from the changeset, as a Classpath resource,
with resource type DRL, it seems to work fine (the kbase compiles!).
But If I have the rule in a guvnor package, and I put the PKG link in my
changeset, I am getting an error:
Caused by: java.lang.NullPointerException
at
org.drools.base.evaluators.BeforeEvaluatorDefinition$BeforeEvaluator.getInterval(BeforeEvaluatorDefinition.java:268)
[drools-core-5.5.0.Final.jar:5.5.0.Final]
at
org.drools.rule.constraint.EvaluatorConstraint.getInterval(EvaluatorConstraint.java:100)
[drools-core-5.5.0.Final.jar:5.5.0.Final]
at
org.drools.reteoo.builder.BuildUtils.gatherTemporalRelationships(BuildUtils.java:326)
[drools-core-5.5.0.Final.jar:5.5.0.Final]
at
org.drools.reteoo.builder.BuildUtils.calculateTemporalDistance(BuildUtils.java:292)
[drools-core-5.5.0.Final.jar:5.5.0.Final]
at
org.drools.reteoo.builder.ReteooRuleBuilder.addRule(ReteooRuleBuilder.java:119)
[drools-core-5.5.0.Final.jar:5.5.0.Final]
at org.drools.reteoo.ReteooBuilder.addRule(ReteooBuilder.java:113)
[drools-core-5.5.0.Final.jar:5.5.0.Final]
at org.drools.reteoo.ReteooRuleBase.addRule(ReteooRuleBase.java:445)
[drools-core-5.5.0.Final.jar:5.5.0.Final]
It seems that that getOperator() is null in this evaluation:
if ( this.getOperator().isNegated() ) {
I debugged a bit, and it seems the evaluator comes in serialized from guvnor's
package.But in case of getting directly the classpath resource, it compiles the
package and it gets the real operator ok (Operator = 'before')
Do you have any idea of why it could be happening? May I be doing something
wrong? Is this a bug in guvnor?
Thanks in advance!
Demian
--
View this message in context:
http://drools.46999.n3.nabble.com/Problem-with-PKG-from-guvnor-tp4025687.html
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Re: [rules-users] Problem with PKG from guvnor
Hi-,
I think I had similar issue and resolved by looking at one of these:
1. How the changes set is loaded:
Resource changeset = ResourceFactory.newFileResource(changeSetFilePath);
//.newClassPathResource(changeSetPath);
2.If the package not yet built, In GUVNOR, I go to 'knowledgebase'/ click on
you package/click on the 'edit' tab on the right/ click build package ( I also
do create snapshot but may not be necessary ).
See if it helps.
G-
-Original Message-
From: rules-users-boun...@lists.jboss.org
[mailto:rules-users-boun...@lists.jboss.org] On Behalf Of calcacuervo
Sent: Monday, August 26, 2013 10:26 PM
To: rules-users@lists.jboss.org
Subject: [rules-users] Problem with PKG from guvnor
Hi Guys,
I am having a problem using Drools 5.5.
Basically, I have a ksession in stream mode.
I have a rule with an event, like this
when
myfact: EventA( main 21 ) over window:length (1)
myfact2 : EventA( main = 21 , this before myfact ) over window:length
(2)
I also use a KnowledgeAgent and apply a changeset.
If I declare this rule directly from the changeset, as a Classpath resource,
with resource type DRL, it seems to work fine (the kbase compiles!).
But If I have the rule in a guvnor package, and I put the PKG link in my
changeset, I am getting an error:
Caused by: java.lang.NullPointerException
at
org.drools.base.evaluators.BeforeEvaluatorDefinition$BeforeEvaluator.getInterval(BeforeEvaluatorDefinition.java:268)
[drools-core-5.5.0.Final.jar:5.5.0.Final]
at
org.drools.rule.constraint.EvaluatorConstraint.getInterval(EvaluatorConstraint.java:100)
[drools-core-5.5.0.Final.jar:5.5.0.Final]
at
org.drools.reteoo.builder.BuildUtils.gatherTemporalRelationships(BuildUtils.java:326)
[drools-core-5.5.0.Final.jar:5.5.0.Final]
at
org.drools.reteoo.builder.BuildUtils.calculateTemporalDistance(BuildUtils.java:292)
[drools-core-5.5.0.Final.jar:5.5.0.Final]
at
org.drools.reteoo.builder.ReteooRuleBuilder.addRule(ReteooRuleBuilder.java:119)
[drools-core-5.5.0.Final.jar:5.5.0.Final]
at org.drools.reteoo.ReteooBuilder.addRule(ReteooBuilder.java:113)
[drools-core-5.5.0.Final.jar:5.5.0.Final]
at org.drools.reteoo.ReteooRuleBase.addRule(ReteooRuleBase.java:445)
[drools-core-5.5.0.Final.jar:5.5.0.Final]
It seems that that getOperator() is null in this evaluation:
if ( this.getOperator().isNegated() ) {
I debugged a bit, and it seems the evaluator comes in serialized from guvnor's
package.But in case of getting directly the classpath resource, it compiles the
package and it gets the real operator ok (Operator = 'before')
Do you have any idea of why it could be happening? May I be doing something
wrong? Is this a bug in guvnor?
Thanks in advance!
Demian
--
View this message in context:
http://drools.46999.n3.nabble.com/Problem-with-PKG-from-guvnor-tp4025687.html
Sent from the Drools: User forum mailing list archive at Nabble.com.
___
rules-users mailing list
rules-users@lists.jboss.org
https://lists.jboss.org/mailman/listinfo/rules-users
___
rules-users mailing list
rules-users@lists.jboss.org
https://lists.jboss.org/mailman/listinfo/rules-users
Re: [rules-users] Problem with PKG from guvnor
Thanks Genene.
In fact I was able to get the cause of my issue. I created a ticket with
the explanation and a pull request with a possible solution.
https://issues.jboss.org/browse/DROOLS-243
Thanks,
Demian
On Tue, Aug 27, 2013 at 12:26 PM, Genene Geda gg...@ghx.com wrote:
Hi-,
I think I had similar issue and resolved by looking at one of these:
1. How the changes set is loaded:
Resource changeset = ResourceFactory.newFileResource(changeSetFilePath);
//.newClassPathResource(changeSetPath);
2.If the package not yet built, In GUVNOR, I go to 'knowledgebase'/ click
on you package/click on the 'edit' tab on the right/ click build package (
I also do create snapshot but may not be necessary ).
See if it helps.
G-
-Original Message-
From: rules-users-boun...@lists.jboss.org [mailto:
rules-users-boun...@lists.jboss.org] On Behalf Of calcacuervo
Sent: Monday, August 26, 2013 10:26 PM
To: rules-users@lists.jboss.org
Subject: [rules-users] Problem with PKG from guvnor
Hi Guys,
I am having a problem using Drools 5.5.
Basically, I have a ksession in stream mode.
I have a rule with an event, like this
when
myfact: EventA( main 21 ) over window:length (1)
myfact2 : EventA( main = 21 , this before myfact ) over
window:length (2)
I also use a KnowledgeAgent and apply a changeset.
If I declare this rule directly from the changeset, as a Classpath
resource, with resource type DRL, it seems to work fine (the kbase
compiles!).
But If I have the rule in a guvnor package, and I put the PKG link in my
changeset, I am getting an error:
Caused by: java.lang.NullPointerException
at
org.drools.base.evaluators.BeforeEvaluatorDefinition$BeforeEvaluator.getInterval(BeforeEvaluatorDefinition.java:268)
[drools-core-5.5.0.Final.jar:5.5.0.Final]
at
org.drools.rule.constraint.EvaluatorConstraint.getInterval(EvaluatorConstraint.java:100)
[drools-core-5.5.0.Final.jar:5.5.0.Final]
at
org.drools.reteoo.builder.BuildUtils.gatherTemporalRelationships(BuildUtils.java:326)
[drools-core-5.5.0.Final.jar:5.5.0.Final]
at
org.drools.reteoo.builder.BuildUtils.calculateTemporalDistance(BuildUtils.java:292)
[drools-core-5.5.0.Final.jar:5.5.0.Final]
at
org.drools.reteoo.builder.ReteooRuleBuilder.addRule(ReteooRuleBuilder.java:119)
[drools-core-5.5.0.Final.jar:5.5.0.Final]
at org.drools.reteoo.ReteooBuilder.addRule(ReteooBuilder.java:113)
[drools-core-5.5.0.Final.jar:5.5.0.Final]
at
org.drools.reteoo.ReteooRuleBase.addRule(ReteooRuleBase.java:445)
[drools-core-5.5.0.Final.jar:5.5.0.Final]
It seems that that getOperator() is null in this evaluation:
if ( this.getOperator().isNegated() ) {
I debugged a bit, and it seems the evaluator comes in serialized from
guvnor's package.But in case of getting directly the classpath resource, it
compiles the package and it gets the real operator ok (Operator = 'before')
Do you have any idea of why it could be happening? May I be doing
something wrong? Is this a bug in guvnor?
Thanks in advance!
Demian
--
View this message in context:
http://drools.46999.n3.nabble.com/Problem-with-PKG-from-guvnor-tp4025687.html
Sent from the Drools: User forum mailing list archive at Nabble.com.
___
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___
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