[rules-users] KnowledgeAgent: impossible to add a map for a null resource! skiping.

[Michael Anstis]

If it works OK when ran as a standalone Java application but not when
deployed on a server I suspect the problem is that your ChangeSet.xml
cannot be found.

A stack trace would be helpful.

On 18 February 2013 20:00, anikulin <antonnik94 at gmail.com> wrote:

> Hi
>
> I've configurated KnowledgeAgent like this and it was working with PKG
> files
> from guvnor, but when i changed path and type of recources to DRL when i
> trying to run it on server i have such warning in logs and KnowledgeBase is
> empty and no rules are fired:
>
> KnowledgeAgent: impossible to add a map for a null resource! skiping.
>
>                  KnowledgeBase kbase =
> KnowledgeBaseFactory.newKnowledgeBase();
>
>                  ResourceChangeScannerConfiguration sconf = ResourceFactory
>                  .getResourceChangeScannerService()
>                  .newResourceChangeScannerConfiguration();
>                  sconf.setProperty("drools.resource.scanner.interval",
>                  scannerInterval);
>
>  ResourceFactory.getResourceChangeScannerService().configure(sconf);
>
>                  KnowledgeAgentConfiguration aconf = KnowledgeAgentFactory
>                  .newKnowledgeAgentConfiguration();
>                  aconf.setProperty("drools.agent.scanDirectories", "true");
>                  aconf.setProperty("drools.agent.scanResources", "true");
>                  aconf.setProperty("drools.agent.newInstance", "true");
>                  kagent =
> KnowledgeAgentFactory.newKnowledgeAgent("changeSetAgent",
>                  kbase, aconf);
>                  kagent.applyChangeSet(ResourceFactory
>                  .newClassPathResource("ChangeSet.xml"));
>
> But this warn I have only with server deploying, when i run this program
> just as standalone java program everythink is ok and rules are firing.
>
> My ChangeSet.xml looks like this:
>
> <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:8083/drools-guvnor/rest/packages/magick/source'
>                         type='DRL' basicAuthentication="enabled"
> username="admin"
> password="admin" />
>         </add>
> </change-set>
>
>
> P.S. I have to change PKG type to DRL, cause drools ignore calendars clause
> in compiled rules from guvnor.
>
> Can you help me to solve this problem?
>
> Thanks, Anton
>
>
>
> --
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> Sent from the Drools: User forum mailing list archive at Nabble.com.
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