[rules-users] Drools 5 - Not sure why this simple DSL not working

[Vijay K Pandey]

Suggestion (DSL first) by Edson works perfectly. Thanks a lot Edson!.

Thanks
Vijay
________________________________
From: rules-users-bounces at lists.jboss.org [mailto:rules-users-bounces at lists.jboss.org] On Behalf Of Edson Tirelli
Sent: Friday, August 14, 2009 12:24 PM
To: Rules Users List
Subject: Re: [rules-users] Drools 5 - Not sure why this simple DSL not working


   Not true. [consequence] and [then] are synonyms, and [consequence] is the preferred way.

   I think the problem is the order in which you are loading the resources. Add the DSL before adding the DSLR.

   []s
   Edson
2009/8/14 Premkumar Stephen <prem18 at gmail.com<mailto:prem18 at gmail.com>>
you need to change
[consequence][]LOGGING=System.out.println("hello");
to
[then][]LOGGING=System.out.println("hello");
Regards,
Prem


2009/8/14 Vijay K Pandey <VPandey at mdes.ms.gov<mailto:VPandey at mdes.ms.gov>>

Thanks, but I have gone through this before and I don't see any issue in the DRL & DSL file I wrote. Also within the eclipse plug-in, "Rete View" comes up fine for the DRL but while running as java application, "Unable to expand:" error comes.



________________________________

From: rules-users-bounces at lists.jboss.org<mailto:rules-users-bounces at lists.jboss.org> [mailto:rules-users-bounces at lists.jboss.org<mailto:rules-users-bounces at lists.jboss.org>] On Behalf Of Premkumar Stephen
Sent: Friday, August 14, 2009 11:53 AM
To: Rules Users List
Subject: Re: [rules-users] Drools 5 - Not sure why this simple DSL not working



http://hudson.jboss.org/hudson/job/drools/lastSuccessfulBuild/artifact/trunk/target/docs/drools-expert/html_single/index.html Section 4.10.2

2009/8/14 Vijay K Pandey <VPandey at mdes.ms.gov<mailto:VPandey at mdes.ms.gov>>

Hi,



I am trying to get a very simple DSL working but all the time it gives the error of Unable to expand: If I take the DSL away everything runs fine, not sure whats going on.



So what I did is strip away all other stuff and just added a plain simple DSL -- but still the same error



Unable to expand:             LOGGING



DSLR file Contents:



package test.rules

dialect "mvel"



expander testing.dsl



rule "TestingCheck"



      when

      then

            LOGGING

end



DSL file content

[consequence][]LOGGING=System.out.println("hello");



ChangeSet XML file (test_changeset.xml)

<change-set xmlns='http://drools.org/drools-5.0/change-set'

             xmlns:xs='http://www.w3.org/2001/XMLSchema-instance'

             xs:schemaLocation='http://drools.org/drools-5.0/change-set drools-change-set-5.0.xsd<http://drools.org/drools-5.0/change-set%0Adrools-change-set-5.0.xsd>' >

   <add>

       <resource source='classpath:test/rules/test.drl' type='DSLR' />

       <resource source='classpath:test/rules/testing.dsl' type='DSL' />

   </add>

</change-set>



I am loading the changeset set via



KnowledgeBuilder kbuilder = KnowledgeBuilderFactory.newKnowledgeBuilder();

kbuilder.add(ResourceFactory.newClassPathResource("test_changeset.xml"), ResourceType.CHANGE_SET);



Any hint what is going wrong?



Thanks

Vijay



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--
 Edson Tirelli
 JBoss Drools Core Development
 JBoss by Red Hat @ www.jboss.com<http://www.jboss.com>
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