<html><body><div style="color:#000; background-color:#fff; font-family:HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif;font-size:10pt">Hy all<br><br>We're having the following situation in our application:<br><br>ChangeSet:<br><change-set xmlns='http://drools.org/drools-5.0/change-set' xmlns:xs='http://www.w3.org/2001/XMLSchema-instance'<br> 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'><br> <add><br> <resource source='file:rules/rules.pkg' type='PKG' /><br> </add><br></change-set><br><br><br>Code:<br>...<br>// Build initial KnowledgeBase<br>KnowledgeBuilderConfiguration kbuilderConfig = KnowledgeBuilderFactory.newKnowledgeBuilderConfiguration(null, classloaders);<br>knowledgeBuilder =
KnowledgeBuilderFactory.newKnowledgeBuilder(kbuilderConfig);<br>knowledgeBuilder.add(resource, resourceType); //Resource: URL-Resource (Patch to ChangeSet), ResourceType: ChangeSet<br>Collection<KnowledgePackage> knowledgePackages = knowledgeBuilder.getKnowledgePackages();<br>knowledgeBase.addKnowledgePackages(knowledgePackages);<br><br>// Create and configure Knowledge Agent<br>KnowledgeAgentConfiguration knowledgeAgentConfig = KnowledgeAgentFactory.newKnowledgeAgentConfiguration();<br>knowledgeAgentConfig.setProperty("drools.agent.useKBaseClassLoaderForCompiling", "true");<br>knowledgeAgentConfig.setProperty("drools.agent.newInstance", "false");<br>knowledgeAgent = KnowledgeAgentFactory.newKnowledgeAgent("MyAgent", knowledgeBase, knowledgeAgentConfig);<br>knowledgeAgent.addEventListener(new KnowledgeAgentEventListener() {...} // Just for debugging
purposes<br>knowledgeAgent.monitorResourceChangeEvents(true);<br>knowledgeAgent.applyChangeSet(resource);<br><br>// Configure Notification and Scanner<br>ResourceChangeScannerConfiguration resourceChangeScannerConfig = ResourceFactory<br> .getResourceChangeScannerService().newResourceChangeScannerConfiguration();<br>resourceChangeScannerConfig.setProperty("drools.resource.scanner.interval", "10");<br>ResourceFactory.getResourceChangeScannerService().configure(resourceChangeScannerConfig);<br>ResourceFactory.getResourceChangeNotifierService().start();<br>ResourceFactory.getResourceChangeScannerService().start();<br><br>// Get KnowledgeBase from Agent<br>knowledgeBase = knowledgeAgent.getKnowledgeBase();<br>...<br><br><br>When i replace the rules.pkg with a new package (exported from guvnor with a newer "Date Modified"), the Knowledge-Base is newly generated. When I replace the pkg with the Package
from the previous Version (older "Date modified"), nothing happens (despite the pkg has changed).<br><br>Question:<br>Does the agent only updates the Knowledge-Base, when the replaced pkg-File has a newer "Date Modified"?<br>In our scenario, the expected behaviour would be that the Agent updates the Knowledge-Base everytime the pkg-file changes, so that we can switch between newer and older versions of the pkg-file. Any idea how to achieve this?<br><br>Thanks for your help.<br><br>Kind regards,<br>Peter<br></div></body></html>