[rules-users] urlResource, applyChangeset and authentication error

[Esteban Aliverti]

You have to create a change-set containing authentication information for
the resource. Please search in this mailing list since this problem was
previously solved.

Best Regards,

XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

Esteban Aliverti
- Developer @ http://www.plugtree.com
- Blog @ http://ilesteban.wordpress.com


On Tue, Jan 3, 2012 at 2:44 PM, kachaps4u <kachanAnidharan at gmail.com> wrote:

> /Hello there, I was trying to do write a simple rule inside BRMS: When a
> car
> model year is older than 1989, then destroy the car. Package was validated
> and created the snapshot and copied the uri. Then I created a Drools
> Project
> and was trying to access those resources through uri but I am not able to
> go
> forward. Its showing 401  exception at the line I specified the uri in the
> code, see below:/
>
> package pop.blah.test;
>
> import org.drools.KnowledgeBase;
> import org.drools.agent.KnowledgeAgent;
> import org.drools.agent.KnowledgeAgentFactory;
> import org.drools.io.ResourceFactory;
> import org.drools.runtime.StatefulKnowledgeSession;
> import org.drools.definition.type.FactType;
>
>
> public class CarApp {
>
>        public static void main(String[] args) {
>
>                KnowledgeAgent kagent =
> KnowledgeAgentFactory.newKnowledgeAgent(
> "myAgent1" );
>                kagent.applyChangeSet(
> ResourceFactory.newUrlResource("
> http://localhost:8080/jboss-brms/org.drools.guvnor.Guvnor/package/pop.blah.test/CAR/LATEST
> "));
>                KnowledgeBase kbase = kagent.getKnowledgeBase();
>                StatefulKnowledgeSession ksession =
> kbase.newStatefulKnowledgeSession();
>                ResourceFactory.getResourceChangeScannerService().start();
>                 try {
>                  FactType carType = kbase.getFactType( "pop.blah.test",
> "Car" );
>                  Object bmw = carType.newInstance();
>                  carType.set( bmw,"name","My Car" );
>          carType.set( bmw,"make","BMW-x5" );
>          carType.set( bmw,"year", 1977);
>          ksession.insert( bmw );
>          ksession.fireAllRules();
>          boolean dest = (Boolean) carType.get( bmw, "destroy" );
>           if (dest==true) {
>                System.out.println("I am gona destroy that car!");
>           }
>           else {
>                System.out.println("I am happy with my car!");
>           }
>                 }
>                 catch (Exception E) {
>                 E.printStackTrace();
>                 }
>                 finally {
>                  ksession.dispose();
>                 }
>        }
>
> }
>
>
> /and here is my Error:/
>
> [2012:01:03 08:01:578:info] ResourceChangeNotification created
> [2012:01:03 08:01:578:info] ResourceChangeScanner reconfigured with
> interval=60
> [2012:01:03 08:01:578:info] ResourceChangeScanner created with default
> interval=60
> [2012:01:03 08:01:578:debug] ResourceChangeNotification monitor added
> monitor=org.drools.io.impl.ResourceChangeScannerImpl at 1bd7848
> [2012:01:03 08:01:593:debug] KnowledgeAgent building resource map
> [2012:01:03 08:01:593:info] KnowledegAgent has started listening for
> ChangeSet notifications
> [2012:01:03 08:01:593:info] KnowledgeAgent created, with configuration:
> monitorChangeSetEvents=true scanResources=true scanDirectories=true
> newInstance=true
> [2012:01:03 08:01:859:exception]
> java.lang.RuntimeException: Unable to parse ChangeSet
>        at
>
> org.drools.agent.impl.KnowledgeAgentImpl.getChangeSet(KnowledgeAgentImpl.java:393)
>        at
>
> org.drools.agent.impl.KnowledgeAgentImpl.applyChangeSet(KnowledgeAgentImpl.java:168)
>        at pop.blah.test.CarApp.main(CarApp.java:16)
> Caused by: java.io.IOException: Server returned HTTP response code: 401 for
> URL:
>
> http://localhost:8080/jboss-brms/org.drools.guvnor.Guvnor/package/pop.blah.test/CAR/LATEST
>        at
> sun.net.www.protocol.http.HttpURLConnection.getInputStream(Unknown
> Source)
>        at org.drools.io.impl.UrlResource.grabStream(UrlResource.java:210)
>        at
> org.drools.io.impl.UrlResource.getInputStream(UrlResource.java:146)
>        at org.drools.io.impl.UrlResource.getReader(UrlResource.java:214)
>        at
>
> org.drools.agent.impl.KnowledgeAgentImpl.getChangeSet(KnowledgeAgentImpl.java:391)
>        ... 2 more
> [2012:01:03 08:01:859:exception]
> java.lang.RuntimeException: Unable to parse ChangeSet
>        at
>
> org.drools.agent.impl.KnowledgeAgentImpl.getChangeSet(KnowledgeAgentImpl.java:397)
>        at
>
> org.drools.agent.impl.KnowledgeAgentImpl.applyChangeSet(KnowledgeAgentImpl.java:168)
>        at pop.blah.test.CarApp.main(CarApp.java:16)
> [2012:01:03 08:01:859:info] KnowledgeAgent applying ChangeSet
> Exception in thread "main" java.lang.NullPointerException
>        at
>
> org.drools.agent.impl.KnowledgeAgentImpl.processChangeSet(KnowledgeAgentImpl.java:215)
>        at
>
> org.drools.agent.impl.KnowledgeAgentImpl.applyChangeSet(KnowledgeAgentImpl.java:183)
>        at
>
> org.drools.agent.impl.KnowledgeAgentImpl.applyChangeSet(KnowledgeAgentImpl.java:168)
>        at pop.blah.test.CarApp.main(CarApp.java:16)
>
>
>
> Please help me.
>
>
>
>
> --
> View this message in context:
> http://drools.46999.n3.nabble.com/urlResource-applyChangeset-and-authentication-error-tp3629051p3629051.html
> Sent from the Drools: User forum mailing list archive at Nabble.com.
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