[rules-users] How to access Guvnor Rules based on versions from Java?
Jervis Liu
jliu at redhat.com
Fri Oct 19 08:57:02 EDT 2012
On 2012/10/19 17:56, Sai Nadh wrote:
> 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'/>
<resource
source='http://localhost:8080/drools-guvnor/rest/packages/mypackage/assets/testrule1/source
<http://localhost:8080/drools-guvnor/rest/packages/mypackage/source>'
type='BRL'/>
Check the doc for details:
http://docs.jboss.org/drools/release/5.5.0.Beta1/drools-guvnor-docs/html/ch09.html#d0e3153
>
> 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
> <mailto: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.
>> _______________________________________________
>> rules-users mailing list
>> rules-users at lists.jboss.org <mailto:rules-users at lists.jboss.org>
>> https://lists.jboss.org/mailman/listinfo/rules-users
>
>
> _______________________________________________
> rules-users mailing list
> rules-users at lists.jboss.org <mailto:rules-users at lists.jboss.org>
> https://lists.jboss.org/mailman/listinfo/rules-users
>
>
>
>
> --
> *Regards*
> *SAI BABA NADH*
>
> +91 7411680125
>
> **
>
>
>
>
>
> _______________________________________________
> rules-users mailing list
> rules-users at lists.jboss.org
> https://lists.jboss.org/mailman/listinfo/rules-users
-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://lists.jboss.org/pipermail/rules-users/attachments/20121019/3bfe1d29/attachment-0001.html
More information about the rules-users
mailing list