Hi All,
I am getting Nullpointer exception the application is trying to
reloadKnwledgeBase. I have the following code in application.
public void init() {
logger.info("Group Rule Engine Initiated..!!");
/**
* Polling interval needs to be externalized
*/
knowledgeAgent =
KnowledgeAgentFactory.newKnowledgeAgent("FiveSeries");
knowledgeAgent.applyChangeSet(ResourceFactory
.newFileResource(propertyReader
.getProperty("DROOLS_GUVNOR_CHAGNE_SET_XML_PATH")));
ResourceFactory.getResourceChangeScannerService().start();
ResourceFactory.getResourceChangeNotifierService().start();
if (knowledgeAgent != null &&
knowledgeAgent.getKnowledgeBase()!=null &&
!knowledgeAgent.getKnowledgeBase().getKnowledgePackages().isEmpty()) {
knowledgeBase = knowledgeAgent.getKnowledgeBase();
}
logger.info("Group Rule Engine is ready to use..!!");
}
public void reloadKnowledgeBase() {
if (knowledgeAgent != null &&
knowledgeAgent.getKnowledgeBase()!=null &&
!knowledgeAgent.getKnowledgeBase().getKnowledgePackages().isEmpty()) {
knowledgeBase = knowledgeAgent.getKnowledgeBase();
logger.debug("KnowledgeBase reloaded..!!");
} else {
logger.info("KnowledgeBase not reloaded..!!");
ResourceFactory.getResourceChangeScannerService().stop();
ResourceFactory.getResourceChangeNotifierService().stop();
init();
}
}
reloadKnowledgeBase() is called once in application during Login. The
problem is occurring in Development application. When I am using that
Change-Set.xml in my local application, it is working perfectly fine. I m
not getting the problem. I bounced both Jboss and application servers but
still no luck!
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