Re: [rules-users] Facing problem in ResourceChangeScanner
Hello Saurabh, which types of resources do you specify in your changeset.xml? Also try to debug ResourceChangeScanner by adding following line at the begining of your code: SystemEventListenerFactory.setSystemEventListener(new PrintStreamSystemEventListener(System.out)); Jiri Svitak On 03/23/2012 07:51 AM, Saurabh wrote: Hi , I am trying to understand KnowledgeAgent functioality. but i am facing following issue ResourceChangeScanner is scanning the change resource and building the Knowledgebase but still firing previous rules. I am using these line of codes File fxml = new File(change-set.xml); kbase = KnowledgeBaseFactory.newKnowledgeBase(); ResourceChangeScannerConfiguration sconf = ResourceFactory.getResourceChangeScannerService().newResourceChangeScannerConfiguration(); sconf.setProperty(drools.resource.scanner.interval, 2); ResourceFactory.getResourceChangeScannerService().configure(sconf); KnowledgeAgentConfiguration aconf = KnowledgeAgentFactory.newKnowledgeAgentConfiguration(); aconf.setProperty(drools.agent.scanDirectories, true); aconf.setProperty(drools.agent.useKBaseClassLoaderForCompiling, true); aconf.setProperty(drools.agent.scanResources, true); aconf.setProperty(drools.agent.newInstance, true); KnowledgeAgent kagent = KnowledgeAgentFactory.newKnowledgeAgent(test agent, kbase, aconf); System.out.println(test agent: + kagent.getName()); kagent.applyChangeSet(ResourceFactory.newUrlResource(fxml.toURI().toURL())); ksession = kagent.getKnowledgeBase().newStatefulKnowledgeSession(); Thanks , Saurabh -- View this message in context: http://drools.46999.n3.nabble.com/Facing-problem-in-ResourceChangeScanner-tp3850837p3850837.html Sent from the Drools: User forum mailing list archive at Nabble.com. ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
Re: [rules-users] Resource Change Scanner Service modified date error
Hello Dean, you are right, https://issues.jboss.org/browse/GUVNOR-1699 solves something different. Bugzilla https://bugzilla.redhat.com/show_bug.cgi?id=733008 still waits to be solved. I have updated this bugzilla to be linked to belonging JIRA issues. You can look also on other bugs which have the same root cause. But I am not developer, so I cannot tell you when it'll be fixed. Jiri Svitak On 01/05/2012 02:27 PM, Dean wrote: Hi I am experiencing a problem with starting the ResourceChangeScannerService as described here: https://bugzilla.redhat.com/show_bug.cgi?id=733008 I can create a KnowledgeAgent instance and apply a changeset to it which loads the desired package from Guvnor. However, as soon as I attempt to start the ScannerService in order to be notified of changes to this package I immediately receive the exception: java.lang.IllegalStateException: reader does have a modified date. Then on every scanner interval following, the scanner fails each time with the same error message. Apparently, this issue has already been fixed here: https://issues.jboss.org/browse/GUVNOR-1699 However, I am still experiencing this problem even with Drools 5.4.0.Beta1 Could somebody perhaps help me with this. I am attempting to rebuild the source code on my side, however, I am having endless problems with Maven. Regards Dean -- View this message in context: http://drools.46999.n3.nabble.com/Resource-Change-Scanner-Service-modified-date-error-tp3634802p3634802.html Sent from the Drools: User forum mailing list archive at Nabble.com. ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
Re: [rules-users] 5.3.0.Final resource change scanner bug
This has been already reported: https://bugzilla.redhat.com/show_bug.cgi?id=741219 https://bugzilla.redhat.com/show_bug.cgi?id=741287 This happens for Guvnor's PKG, XLS, DRF and I guess CSV too. You'll find test cases there. Jiri Svitak On 10/25/2011 12:07 AM, Michael Anstis wrote: Thanks Lisa, I appreciate it is a pain for you but your help is much appreciated. sent on the move On 24 Oct 2011 23:03, lhorton lhor...@abclegal.com mailto:lhor...@abclegal.com wrote: Yes, all compile ok without change set (our tests compile the rules in code, but our server compiles using knowledge agent). I had to roll everything back to 5.2 for our developers, but I'll find some time tomorrow to try things out with 5.3 again. I'll see if I can narrow it down to specific file(s) that fail compilation. -- View this message in context: http://drools.46999.n3.nabble.com/5-3-0-Final-resource-change-scanner-bug-tp3449420p3449655.html Sent from the Drools: User forum mailing list archive at Nabble.com. ___ rules-users mailing list rules-users@lists.jboss.org mailto:rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
Re: [rules-users] IllegalStateException happens when ResourceChangeScanner working on Version 5.3.0.CR1
I have already reported this issue: https://bugzilla.redhat.com/show_bug.cgi?id=733008 On 10/04/2011 02:56 PM, Oliver Liu wrote: Hi Guys, I want to upgrade drools from 5.1.1 to 5.3.0 CR1, but i found ResourceChangeScanner could't work. In version 5.1.1, i wrote this code to get a KnowledgeAgent KnowledgeAgent kagent = KnowledgeAgentFactory.newKnowledgeAgent(ReleaseAgent); kagent.addEventListener(new ReloadingRuleEventListener(this)); kagent.applyChangeSet(ResourceFactory.newClassPathResource(changeset-url.xml)); changeset-url.xml content is like: change-set xmlns='http://drools.org/drools-5.0/change-set' xmlns:xs='http://www.w3.org/2001/XMLSchema-instance' 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' add resource source='http://hostname:8080/drools-guvnor/org.drools.guvnor.Guvnor/package/PackageName1/snapshot_release' type='PKG' basicAuthentication=enabled username=user1 password=123456 / resource source='http://hostname:8080/drools-guvnor/org.drools.guvnor.Guvnor/package/PackageName2/snapshot_release' type='PKG' basicAuthentication=enabled username=user1 password=123456 / resource source='http://hostname:8080/drools-guvnor/org.drools.guvnor.Guvnor/package/PackageName3/snapshot_release' type='PKG' basicAuthentication=enabled username=user1 password=123456 / /add /change-set then wrote this code to scan if there is a new version snapshot on guvnor ResourceChangeScannerConfiguration sconf = ResourceFactory .getResourceChangeScannerService() .newResourceChangeScannerConfiguration(); sconf.setProperty(drools.resource.scanner.interval,60); ResourceFactory.getResourceChangeScannerService().configure(sconf); ResourceFactory.getResourceChangeScannerService().start(); ResourceFactory.getResourceChangeNotifierService().start(); It works very well, each time when ResourceChangeScanner finding there is new snapshot, it can reload the rules from guvnor properly. But when i updated to 5.3.0 CR1, ran this code, error happens: Exception in thread Thread-2 java.lang.IllegalStateException: reader does have a modified date at org.drools.io.impl.ReaderResource.getLastModified(ReaderResource.java :64) at org.drools.io.impl.ResourceChangeScannerImpl.scan(ResourceChangeScann erImpl.java:169) at org.drools.io.impl.ResourceChangeScannerImpl$ProcessChangeSet.run(Res ourceChangeScannerImpl.java:326) at java.lang.Thread.run(Thread.java:619) It seems in new version, UrlResource was parsed to ReaderResource(i rememer in 5.1.1, each resource in changeset-url.xml was parsed to UrlResource). Can you give a help? Thanks a lot -- View this message in context: http://drools.46999.n3.nabble.com/IllegalStateException-happens-when-ResourceChangeScanner-working-on-Version-5-3-0-CR1-tp3393027p3393027.html Sent from the Drools: User forum mailing list archive at Nabble.com. ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
[rules-users] Debugging unification in backward chaining
Hello, is there a way to debug unification process in backward chaining (Drools 5.2.0 feature)? Jiri Svitak ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
