Re: [rules-users] KnowledgeAgent to update knowledge base built with Guvnor pkg

Here is the code I am using to create the knowledge base, knowledge agent and to retrieve the resources: public static KnowledgeBase createKnowledgeBase(List<DroolsResource> resources, EventProcessingOption eventProcessingOption) { KnowledgeBuilder builder = KnowledgeBuilderFactory.newKnowledgeBuilder(); for (DroolsResource resource : resources) { logger.info("Resource: " + resource.getType() + ", path type=" + resource.getPathType() + ", path=" + resource.getPath()); switch (resource.getPathType()) { case CLASSPATH: builder.add(ResourceFactory.newClassPathResource(resource.getPath()), resource.getType()); break; case FILE: builder.add(ResourceFactory.newFileResource(resource.getPath()), resource.getType()); break; case URL: UrlResource urlResource = (UrlResource) ResourceFactory .newUrlResource(resource.getPath()); if (resource.getUsername() != null) { logger.info("Setting authentication for: " + resource.getUsername()); urlResource.setBasicAuthentication("enabled"); urlResource.setUsername(resource.getUsername()); urlResource.setPassword(resource.getPassword()); } builder.add(urlResource, resource.getType()); break; default: throw new IllegalArgumentException( "Unable to build this resource path type."); } } if (builder.hasErrors()) { throw new RuntimeException(builder.getErrors().toString()); } KnowledgeBaseConfiguration conf = KnowledgeBaseFactory.newKnowledgeBaseConfiguration(); // setting the STREAM option conf.setOption(eventProcessingOption); // modify the default identity compare mode to equality conf.setOption(AssertBehaviorOption.EQUALITY); KnowledgeBase knowledgeBase = KnowledgeBaseFactory.newKnowledgeBase(conf); knowledgeBase.addKnowledgePackages(builder.getKnowledgePackages()); return knowledgeBase; } public static KnowledgeAgent createKnowledgeAgent(String knowledgeAgentName, KnowledgeBase knowledgeBase) { KnowledgeAgentConfiguration aconf = KnowledgeAgentFactory.newKnowledgeAgentConfiguration(); aconf.setProperty("drools.agent.newInstance", "false"); KnowledgeAgent kagent = KnowledgeAgentFactory.newKnowledgeAgent(knowledgeAgentName, knowledgeBase, aconf); ResourceFactory.getResourceChangeScannerService().start(); ResourceFactory.getResourceChangeNotifierService().start(); return kagent; } public DroolsResource getGuvnorResource(User user) { String packageName = user.getUsername(); String guvnorBinaryResourceUrl = "http://127.0.0.1:8080/guvnor/rest/packages/" + packageName + "/binary"; return new DroolsResource(guvnorBinaryResourceUrl, ResourcePathType.URL, ResourceType.PKG, credentials.getUserPrincipal().getName(), credentials.getPassword()); } Where the DroolsResource is a custom class to hold information about a resource: public class DroolsResource { private String path; private ResourcePathType pathType; private ResourceType type; private String username = null; private String password = null; //getters, setters and constructors } To initialize the environement I just call the method to create the knowledge base once I have the DroolsResource and then the method to create the knowledge agent. Afterwards I create a statefull knowledge session using the getKnowledgeBase() of the agent. Would the problem be the Guvnor url that I am using? I used the rest version since it sais that it builds the package automatically. Or the fact that the url is not in a change-set.xml file? When I run the session the first time (via the fireUntilHalt() in a separate thread), rules get executed correctly and I call the halt() method to stop it. If I then go and change a rule in the package and restart the session then no changes are taken into account. Is the way I am executing the sessions a problem? I do not want to recreate a new session every time since I would have to reinsert all the facts, so I retrieve the session from the knowledge base. I dispose of the session when the application is shut down. I am new at this so I might be overlooking an important aspect. Many thanks for all your help. -- View this message in context: http://drools.46999.n3.nabble.com/Re-rules-users-KnowledgeAgent-to-update... Sent from the Drools: User forum mailing list archive at Nabble.com. _______________________________________________ rules-users mailing list rules-users(a)lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users