Re: [rules-users] Weblogic rules to Drools rules.

[kashif10]

Thanks Edson,

I Went throught the documentation.
I cerate  a small rule & its laod & evaluate ok.
But when I try to load a some bit large rule it stuks & thorws following
exception:

which is more than the configured time (StuckThreadMaxTime) of "600"
seconds. Stack trace:
org.mvel2.asm.ClassReader.(ClassReader.java:146)
org.mvel2.asm.ClassReader.(ClassReader.java:128)
   
d1.rule.Rule_0b48e12625010080cb1e0dd40f6f_0Eval66Invoker.getMethodBytecode(Rule_0b48e12625010080cb1e0dd40f6f_0Eval66Invoker.java:52)
   
d1.rule.Rule_0b48e12625010080cb1e0dd40f6f_0Eval83Invoker.equals(Rule_0b48e12625010080cb1e0dd40f6f_0Eval83Invoker.java:73)
org.drools.rule.EvalCondition.equals(EvalCondition.java:169)
   
org.drools.reteoo.EvalConditionNode.equals(EvalConditionNode.java:231)
   
org.drools.reteoo.CompositeLeftTupleSinkAdapter.getMatchingNode(CompositeLeftTupleSinkAdapter.java:102)
org.drools.reteoo.builder.BuildUtils.attachNode(BuildUtils.java:128)
org.drools.reteoo.builder.EvalBuilder.build(EvalBuilder.java:42)
   
org.drools.reteoo.builder.GroupElementBuilder$AndBuilder.build(GroupElementBuilder.java:126)
   
org.drools.reteoo.builder.GroupElementBuilder.build(GroupElementBuilder.java:73)
   
org.drools.reteoo.builder.ReteooRuleBuilder.addSubRule(ReteooRuleBuilder.java:153)
   
org.drools.reteoo.builder.ReteooRuleBuilder.addRule(ReteooRuleBuilder.java:126)
org.drools.reteoo.ReteooBuilder.addRule(ReteooBuilder.java:117)
org.drools.reteoo.ReteooRuleBase.addRule(ReteooRuleBase.java:362)
   
org.drools.common.AbstractRuleBase.addRule(AbstractRuleBase.java:618)
   
org.drools.common.AbstractRuleBase.addPackages(AbstractRuleBase.java:500)
   
org.drools.reteoo.ReteooRuleBase.addPackages(ReteooRuleBase.java:379)
   
org.drools.impl.KnowledgeBaseImpl.addKnowledgePackages(KnowledgeBaseImpl.java:121)





My questions are:
i) How can I increase the time.
ii) Currently I am using some thng as follows in our drl file:

when
#conditions 

eval(cdaUtil.compareObservation("Blood Glucose", "82947",
"2.16.840.1.113883.6.12", "<9331200", "", "", "", "",
"").equals("false")  )

and

eval(cdaUtil.compareDiagnosis("Coronary Artery 
Disease", "414.8",
"2.16.840.1.113883.6.2", "").equals("true")  )

:
:
:
more conditions as above. around 40 -50 with OR / AND .

Actualy we have a class which have methods such as (compareObservation,
compareDiagnosis etc) to evaluate those conditions, We were using this
methodology in Weblogic rule xml too.
We don't have a class with attributes to set & evluate.  So is the above
logic I ma using is ok or could you suggest some other drl way to evaluate
such rules.

Thanks


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[rules-users] incompatible error

[Sikkandar Nawabjan]

Hi,
Am using drools 5 and am getting following error when I do packaging the
drl and dsls
org.drools.base.SalienceInteger incompatible with org.drools.rule.Rule
what could be the reason?
Thanks
sikkandar

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Re: [rules-users] Does rule execution block when the Knowlege Agent is rebuild KnowlegeBase???

[Pegram, Macon]

We've tested this behavior under load and there is a brief (duration of
about 1 - 1.5 seconds) uptick when the rulebase switch happens, but we
noticed consistent and rapid recovery.

I have not confirmed this but I believe what happens is a new
KnowledgeBase is built, and once it's build is complete, it does a swap
which causes the brief uptick.   I don't believe there's any blocking
going on while the KnowledgeBase is built however.

Macon

-Original Message-
From: rules-users-boun...@lists.jboss.org
[mailto:rules-users-boun...@lists.jboss.org] On Behalf Of Wing
Sent: Tuesday, January 26, 2010 7:10 PM
To: rules-users@lists.jboss.org
Subject: [rules-users] Does rule execution block when the Knowlege Agent
is rebuild KnowlegeBase???


Hello Drools User,

I am using Knowlege Agent to monitor changes in the repository.  I have
started the following services:

ResourceFactory.getResourceChangeNotifierService().start();
ResourceFactory.getResourceChangeScannerService().start();

I was able to change the rules in the repository and the changes did get
pick up in my application and everything is working fine as expected.

However, I have a question regarding rule execution when the Knowlege
Base
is in the middle of being build by the Knowlege Agent.   What happen
when I
execute the rules using:

ksessionStateless = knowledgeAgent.newStatelessKnowledgeSession();
ksessionStateless.execute(ObjList);

Will the method ksessionStateless.execute(ObjList) block and wait until
the
Knowlege Base is finish being build by the knowledge agent or the method
won't block and just pick up the old Knowlege Base and then switch to
the
new knowlege base when the knowlege agent is finish building it?  Will
the
method ksessionStateless.execute(ObjList) block or not block?

thanks very much in advace for any help on this!

Wing Tang





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Re: [rules-users] KnowledgeAgent doesn't load dsl files and dslrfile from a change-set correctly - JIRA:JBRULES-2377 updated

[Pegram, Macon]

Hmmm.. good catch.  Thanks for pointing that out.  I've up voted that
ticket as well.  The issues are in fact at least partially the same.
I've provided more detail in my ticket but added the below ticket in the
comments of my ticket to draw attention to the issue.  

 

I'd really love to see this resolved before 5.1 becomes final. 

 

Macon



From: rules-users-boun...@lists.jboss.org
[mailto:rules-users-boun...@lists.jboss.org] On Behalf Of Esteban
Aliverti
Sent: Wednesday, January 27, 2010 6:35 AM
To: Rules Users List
Subject: Re: [rules-users] KnowledgeAgent doesn't load dsl files and
dslrfile from a change-set correctly - JIRA:JBRULES-2377 updated

 

I think it is related with
https://jira.jboss.org/jira/browse/JBRULES-2350

On Wed, Jan 27, 2010 at 1:20 AM, Pegram, Macon 
wrote:


I have updated the JIRA ticket with more detailed information.   If this
issue is important to you, please vote up its importance so that we can
hopefully capture the attention of the development team.

You can find the JIRA ticket at:
https://jira.jboss.org/jira/browse/JBRULES-2377

Thanks!
Macon

-Original Message-
From: rules-users-boun...@lists.jboss.org
[mailto:rules-users-boun...@lists.jboss.org] On Behalf Of Pritham
Sent: Tuesday, January 26, 2010 4:29 PM
To: rules-users@lists.jboss.org
Subject: Re: [rules-users] KnowledgeAgent doesn't load dsl files and
dslr file from a change-set correctly


Thanks for the heads up. I can even load the same change-set.xml via
kbuilder
and get the rules to fire and work, turns out that KnowledgeAgent has an
issue.

On a larger note, looking at 5.1M1, KnowledgeAgentImpl has changed a lot
(Mark Proctor) and a lot of "todos" and comments were uncommented in the
newer one. Is it recommended to try the class in an older distribution?
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-from-a-change-set-correctly-tp139702p139849.html
 
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-- 


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Re: [rules-users] Stateless Vs Stateful Sessions in Webtier

[Knapp, Barry]

Is there plan to support work items in Stateless sessions as well?  It seems I 
had a POC using stateless and had to convert it to stateful in order to use a 
simple "send email" work item.


Thanks
Barry

-Original Message-
From: rules-users-boun...@lists.jboss.org 
[mailto:rules-users-boun...@lists.jboss.org] On Behalf Of Mark Proctor
Sent: Wednesday, January 27, 2010 8:18 AM
To: Rules Users List
Subject: Re: [rules-users] Stateless Vs Stateful Sessions in Webtier

On 27/01/2010 13:09, Simon Thum wrote:
> Wolfgang Laun wrote:
>
>> On Wed, Jan 20, 2010 at 12:41 PM, Simon Thum  wrote:
>>
>>> Personally, I look at it like:
>>>
>>> stateless ->  propositional logic
>>> stateful ->  first-order logic
>>>
>>>
>> This is a false proposition ;-)
>>
>> 'not', 'exists' and 'forall' - Drools' support for first-order logic
>> quantifiers - is
>> fully available (such as all the other features for LHS) in a stateless 
>> session.
>>
> Thanks for the clarification. So stateless _uses_ state but just doesn't
> have it bound to the session?
>
> If that's true, is there a deeper sense behind StatelessSession not
> supporting agenda arbitration?
>
> IOW, should I reasonably be able to cook up a
> "SomewhatStatelessSessionWithAgendaSupport", or would I end up with a
> half-arsed StatefulSession ?
>
you can use agenda and ruleflow from within the stateless session.

Mark
>
>> -W
>>
>>
>>> I'm not sure that's 100% true though. In any case, it depends on the
>>> kind of questions you like to ask. If you're not sure, test it.
>>> Cheers,
>>>
>>> Simon
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>>>
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Re: [rules-users] Stateless Vs Stateful Sessions in Webtier

[Mark Proctor]

On 27/01/2010 13:09, Simon Thum wrote:
> Wolfgang Laun wrote:
>
>> On Wed, Jan 20, 2010 at 12:41 PM, Simon Thum  wrote:
>>  
>>> Personally, I look at it like:
>>>
>>> stateless ->  propositional logic
>>> stateful ->  first-order logic
>>>
>>>
>> This is a false proposition ;-)
>>
>> 'not', 'exists' and 'forall' - Drools' support for first-order logic
>> quantifiers - is
>> fully available (such as all the other features for LHS) in a stateless 
>> session.
>>  
> Thanks for the clarification. So stateless _uses_ state but just doesn't
> have it bound to the session?
>
> If that's true, is there a deeper sense behind StatelessSession not
> supporting agenda arbitration?
>
> IOW, should I reasonably be able to cook up a
> "SomewhatStatelessSessionWithAgendaSupport", or would I end up with a
> half-arsed StatefulSession ?
>
you can use agenda and ruleflow from within the stateless session.

Mark
>
>> -W
>>
>>  
>>> I'm not sure that's 100% true though. In any case, it depends on the
>>> kind of questions you like to ask. If you're not sure, test it.
>>> Cheers,
>>>
>>> Simon
>>> ___
>>> rules-users mailing list
>>> rules-users@lists.jboss.org
>>> https://lists.jboss.org/mailman/listinfo/rules-users
>>>
>>>
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>>  
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Re: [rules-users] Stateless Vs Stateful Sessions in Webtier

[Simon Thum]

Wolfgang Laun wrote:
> On Wed, Jan 20, 2010 at 12:41 PM, Simon Thum  wrote:
>> Personally, I look at it like:
>>
>> stateless -> propositional logic
>> stateful -> first-order logic
>>
> 
> This is a false proposition ;-)
> 
> 'not', 'exists' and 'forall' - Drools' support for first-order logic
> quantifiers - is
> fully available (such as all the other features for LHS) in a stateless 
> session.
Thanks for the clarification. So stateless _uses_ state but just doesn't
have it bound to the session?

If that's true, is there a deeper sense behind StatelessSession not
supporting agenda arbitration?

IOW, should I reasonably be able to cook up a
"SomewhatStatelessSessionWithAgendaSupport", or would I end up with a
half-arsed StatefulSession ?

> 
> -W
> 
>> I'm not sure that's 100% true though. In any case, it depends on the
>> kind of questions you like to ask. If you're not sure, test it.
>> Cheers,
>>
>> Simon
>> ___
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>> rules-users@lists.jboss.org
>> https://lists.jboss.org/mailman/listinfo/rules-users
>>
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Re: [rules-users] KnowledgeAgent doesn't load dsl files and dslr file from a change-set correctly - JIRA:JBRULES-2377 updated

[Esteban Aliverti]

I think it is related with https://jira.jboss.org/jira/browse/JBRULES-2350

On Wed, Jan 27, 2010 at 1:20 AM, Pegram, Macon wrote:

>
> I have updated the JIRA ticket with more detailed information.   If this
> issue is important to you, please vote up its importance so that we can
> hopefully capture the attention of the development team.
>
> You can find the JIRA ticket at:
> https://jira.jboss.org/jira/browse/JBRULES-2377
>
> Thanks!
> Macon
>
> -Original Message-
> From: rules-users-boun...@lists.jboss.org
> [mailto:rules-users-boun...@lists.jboss.org] On Behalf Of Pritham
> Sent: Tuesday, January 26, 2010 4:29 PM
> To: rules-users@lists.jboss.org
> Subject: Re: [rules-users] KnowledgeAgent doesn't load dsl files and
> dslr file from a change-set correctly
>
>
> Thanks for the heads up. I can even load the same change-set.xml via
> kbuilder
> and get the rules to fire and work, turns out that KnowledgeAgent has an
> issue.
>
> On a larger note, looking at 5.1M1, KnowledgeAgentImpl has changed a lot
> (Mark Proctor) and a lot of "todos" and comments were uncommented in the
> newer one. Is it recommended to try the class in an older distribution?
> --
> View this message in context:
> http://n3.nabble.com/KnowledgeAgent-doesn-t-load-dsl-files-and-dslr-file
> -from-a-change-set-correctly-tp139702p139849.html
> Sent from the Drools - User mailing list archive at Nabble.com.
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> review, use, disclosure or distribution is prohibited.  If you are not the
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> all copies of the original message.
>
>
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Re: [rules-users] Drools Roadmap - Planned Release 5.1 release date

[Mark Proctor]

On 26/01/2010 22:59, Pritham wrote:
> It's been 6 months since this post and only Milestone 1 has been released.
> Any idea when 5.1 final is being panned for? The "noteworthy"features,
> fixes, spring integration and others look interesting.
>
We've been waiting for an MVEL release for a few weeks now before we can 
M2. final should follow quickly after that.

Mark

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