[rules-users] KnowledgeAgent and OSGI

[David Conde]

Hi,

I'm trying to get drools-core and drools-compiler 5.1 running on spring
dm-server. Does anyone have the minimal list of OSGi bundles as maven
dependencies handy?

Thanks,
Dave

On 25 June 2010 13:59, mmarmol <marcelo.marmol at gmail.com> wrote:

>
> Hi, I have managed to install Drools-core and Drools-compiler in my Equinox
> osgi environment, I can compile rules and execute them just fine, I was
> just
> wandering how to configure a KnowledgeAgent using
> KnowledgeBuilderFactoryService and KnowledgeBaseFactoryService. I managed
> to
> configure one but i am not able to reload rules when they change at
> runtime.
> I have started ResourceChangeScannerService and
> ResourceChangeNotifierService, changeset related to the rules file gets
> read
> but no change gets implemented. An idea?
>
>
> Here is the code:
>
>                ResourceFactory.getResourceChangeScannerService().start();
>                ResourceFactory.getResourceChangeNotifierService().start();
>
>                ServiceReference serviceRef = bc
>
>  .getServiceReference(ServiceRegistry.class.getName());
>                ServiceRegistry registry = (ServiceRegistry)
> bc.getService(serviceRef);
>
>                KnowledgeBuilderFactoryService
> knowledgeBuilderFactoryService = registry
>                                .get(KnowledgeBuilderFactoryService.class);
>
>                KnowledgeBaseFactoryService knowledgeBaseFactoryService =
> registry
>                                .get(KnowledgeBaseFactoryService.class);
>                ResourceFactoryService resourceFactoryService = registry
>                                .get(ResourceFactoryService.class);
>
>                KnowledgeBuilderConfiguration kbConf =
> knowledgeBuilderFactoryService
>                                .newKnowledgeBuilderConfiguration(null,
> getClass()
>                                                .getClassLoader());
>
>                KnowledgeBuilder kbuilder = knowledgeBuilderFactoryService
>                                .newKnowledgeBuilder(kbConf);
>                ResourceFactoryService resource = resourceFactoryService;
>                kbuilder.add(resource.newFileSystemResource(filePath),
>                                ResourceType.CHANGE_SET);
>
>                if (kbuilder.hasErrors()) {
>                        System.out.println(kbuilder.getErrors());
>                        throw new
> RuntimeException(kbuilder.getErrors().toString());
>                }
>
>                KnowledgeBaseConfiguration kbaseConf =
> knowledgeBaseFactoryService
>                                .newKnowledgeBaseConfiguration(null,
> getClass()
>                                                .getClassLoader());
>
>                KnowledgeBase kbase = knowledgeBaseFactoryService
>                                .newKnowledgeBase(kbaseConf);
>                kbase.addKnowledgePackages(kbuilder.getKnowledgePackages());
>
>                KnowledgeAgentConfiguration aconf =
>                KnowledgeAgentFactory.newKnowledgeAgentConfiguration();
>                aconf.setProperty("drools.agent.scanDirectories", "true");
>                aconf.setProperty("drools.agent.scanResources", "true");
>                aconf.setProperty("drools.agent.newInstance", "false");
>
>                kagent = KnowledgeAgentFactory.newKnowledgeAgent(
> "CoreDroolsAgent",kbase,
> aconf);
>
>  kagent.applyChangeSet(resource.newFileSystemResource(filePath));
>
> Thanks in advance!
>
> Cheers
> --
> View this message in context:
> http://drools-java-rules-engine.46999.n3.nabble.com/KnowledgeAgent-and-OSGI-tp921989p921989.html
> Sent from the Drools - User mailing list archive at Nabble.com.
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