[rules-users] How to access Guvnor Rules based on versions from Java?

[Sai Nadh]

hi,

if i have package with name my package in drools guvnor

 In that i have some rules(business rule assets), with name testrule1,
testrule2

if i want to access those rules to my java application

i have written resource url in changeset like

<resource source='
http://localhost:8080/drools-guvnor/rest/packages/mypackage/source'
type='BRL'/>

but i am getting exceptions..

Exception in thread "main" java.lang.RuntimeException:
org.drools.compiler.DroolsParserException:
java.lang.IllegalArgumentException: Unable to instantiate service for Class
'org.drools.compiler.BusinessRuleProvider'


please help me.. to write correct url in changeset.xml to access those BRL's

thanks
sai


On Fri, Oct 19, 2012 at 2:25 PM, Jervis Liu <jliu at redhat.com> wrote:

>  On 2012/10/16 19:47, Ravikiran wrote:
>
> Hi Jarvis,
>
> Thanks for your reply. Looks like i have posted my intension unclearly. To
> elaborate bit more, currently i am using Rest API to create KnowledgeBase
> from my java client. I have changeset-loans.xml, where my guvnor package
> with drl is defined. My java client will this to fire all rules of that
> package. In such a case, when i have more one version created for the
> package and the rule assets within it, how i can i call specific version
> based package along with the drl file to fire all the rule assets belongs to
> it? In the same passion, is there any way i can mentioned the rule asset
> name in the changeset xml file to fire specific version of rule asset from
> java?
>
>  Yes, it is possible to specify a specific version of asset in changeset.
> though this is not supported by Change-set editor at the moment, you have
> to edit the content of change-set xml file manually. For example, below is
> generated by change-set editor:
>
>
> <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
> http://anonsvn.jboss.org/repos/labs/labs/jbossrules/trunk/drools-api/src/main/resources/change-set-1.0.0.xsd'
> >
>     <add>
>          <resource   source='
> http://localhost:8080/drools-guvnor/rest/packages/defaultPackage/assets/sss/source'
> type='DRL' />
>     </add>
> </change-set>
>
> If you want to use a specific version of asset "sss", what you need to do
> is to modify the source URL, make it pointing to the specific version of
> the asset source. eg:
>
>          <resource   source='
> http://localhost:8080/drools-guvnor/rest/packages/defaultPackage/assets/sss/
> versions/2/source' type='DRL' />
>
> This is to get version 2 of asset "sss" source.
>
>
> Cheers,
> Jervis
>
>
>  I can only get the package or rule asset's metadata using the urls that you
> have mentioned in your post. But i can't fire the rules...please suggest if
> i am doing something wrong.
>
> changeset-loans.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
>    http://anonsvn.jboss.org/repos/labs/labs/jbossrules/trunk/drools-api/src/main/resources/change-set-1.0.0.xsd'
>
>      <add>
>       <resource
>
> source='http://localhost:9080/guvnor-5.2.0.Final-tomcat-6.0/org.drools.guvnor.Guvnor/package/loans/loans_demo.drl'
>       type='DRL' basicAuthentication="enabled" username="admin"
> password="admin" />
>    </add>
> </change-set>
>
> Thanks
> Ravi
>
>
>
> --
> View this message in context: http://drools.46999.n3.nabble.com/How-to-access-Guvnor-Rules-based-on-versions-from-Java-tp4020285p4020301.html
> Sent from the Drools: User forum mailing list archive at Nabble.com.
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-- 
*Regards*
*SAI BABA NADH*

+91 7411680125
* *
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