To help isolate the problem, what happens if you try the same but without Spring? i.e. You use the KnowledgeAgent to retrieve the package from Guvnor, create a session, insert facts, fireAllRules etc? On 15 November 2011 16:41, sgo <simon.goumaz(a)elca.ch&gt; wrote: > Hello all, > > I'm a semi-beginner with Drools and am having an issue I haven't found > reported elsewhere. > I have a package defined in Guvnor, with model imported from JAR, one > global, a dozen rules and a couple of test scenarios. The package is > loaded > from the binary published by Guvnor via a knowledge agent into my > stateless > session (defined in Spring beans), but no rules ever fire. (Note that > rules > do fire as expected in my Guvnor test scenarios.) When investigating in > debug mode, I see the package is properly loaded, with imported type > definitions and global, but no rule is in there! The package's rules table > is empty and I really have no clue why (I initially thought my rule > definitions could be the cause and created a minimal test package with > just > one simple rule but with no success.) > > Could anyone point to possible causes for this? > > Many thanks in advance. > > Simon > > -- > View this message in context: > http://drools.46999.n3.nabble.com/No-rules-loaded-when-reading-package-fr... > 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 > _______________________________________________ rules-users mailing list rules-users(a)lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users

@Michael: Yes this is the right track... I created an alternate session without Spring by simply loading the package from the URL with a KnowledgeBuilder, it worked (the rules were there). Then I went on and created another session with a KnowledgeAgent loading my XML ChangeSet (still without Spring), and I observed the following: 1. When the session is created, all is fine (package and rules loaded properly in session) 2. When I start the ResourceChangeScanner (ResourceFactory.getResourceChangeScannerService().start()), however, the loaded package disappears from the session. So there are now two things I need to understand: 1. Why does starting the scanner clear the packages loaded in the session? 1. What is the issue when using Spring, as with Spring I still have my package loaded in the session but no rules?

I think you are fighting with this known bug: https://issues.jboss.org/browse/GUVNOR-1699 ResourceChangeScanner is marking guvnor's resources as removed. I committed a patch some days ago. If you are not interested in keep the kbase in sync with the changes made in Guvnor, a valid workaround could be not to use the kagent and get the pkg directly from Guvnor's URL Best Regards, XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX Esteban Aliverti - Developer @ http://www.plugtree.com - Blog @ http://ilesteban.wordpress.com On Wed, Nov 16, 2011 at 3:43 PM, sgo <simon.goumaz(a)elca.ch&gt; wrote: > Update: if I don't start the resource change scanner, the session created > with Spring is fine too. So, when starting the scanner, the difference > between the Spring case (package loaded but no rules) and the Java code > case > (no package at all) may be due to code sequence, as in the code I'm using > the scanner is started in my service class constructor, after creating the > session in Java code but before Spring beans are injected. Depending on > your > replies I may then try testing with different sequences. > > > sgo wrote: > > > > @Michael: > > > > Yes this is the right track... I created an alternate session without > > Spring by simply loading the package from the URL with a > KnowledgeBuilder, > > it worked (the rules were there). > > > > Then I went on and created another session with a KnowledgeAgent loading > > my XML ChangeSet (still without Spring), and I observed the following: > > 1. When the session is created, all is fine (package and rules loaded > > properly in session) > > 2. When I start the ResourceChangeScanner > > (ResourceFactory.getResourceChangeScannerService().start()), however, > the > > loaded package disappears from the session. > > > > So there are now two things I need to understand: > > 1. Why does starting the scanner clear the packages loaded in the > session? > > 1. What is the issue when using Spring, as with Spring I still have my > > package loaded in the session but no rules? > > > > > -- > View this message in context: > http://drools.46999.n3.nabble.com/No-rules-loaded-when-reading-package-fr... > 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 > _______________________________________________ rules-users mailing list rules-users(a)lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users

Take that back. I see ge0ffrey merged.... On 16 November 2011 17:51, Michael Anstis <michael.anstis(a)gmail.com&gt;wrote: > The patch has not been applied yet. > > @esteban, did you modify to (a) include the other two changes, (b) a > test-case? > > Cheers, > > Mike > > > 2011/11/16 Esteban Aliverti <esteban.aliverti(a)gmail.com&gt; > >> I think you are fighting with this known bug: >> https://issues.jboss.org/browse/GUVNOR-1699 >> >> ResourceChangeScanner is marking guvnor's resources as removed. I >> committed a patch some days ago. >> If you are not interested in keep the kbase in sync with the changes >> made in Guvnor, a valid workaround could be not to use the kagent and get >> the pkg directly from Guvnor's URL >> >> Best Regards, >> >> XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX >> >> Esteban Aliverti >> - Developer @ http://www.plugtree.com >> - Blog @ http://ilesteban.wordpress.com >> >> >> On Wed, Nov 16, 2011 at 3:43 PM, sgo <simon.goumaz(a)elca.ch&gt; wrote: >> >>> Update: if I don't start the resource change scanner, the session >>> created >>> with Spring is fine too. So, when starting the scanner, the difference >>> between the Spring case (package loaded but no rules) and the Java code >>> case >>> (no package at all) may be due to code sequence, as in the code I'm >>> using >>> the scanner is started in my service class constructor, after creating >>> the >>> session in Java code but before Spring beans are injected. Depending on >>> your >>> replies I may then try testing with different sequences. >>> >>> >>> sgo wrote: >>> > >>> > @Michael: >>> > >>> > Yes this is the right track... I created an alternate session without >>> > Spring by simply loading the package from the URL with a >>> KnowledgeBuilder, >>> > it worked (the rules were there). >>> > >>> > Then I went on and created another session with a KnowledgeAgent >>> loading >>> > my XML ChangeSet (still without Spring), and I observed the following: >>> > 1. When the session is created, all is fine (package and rules loaded >>> > properly in session) >>> > 2. When I start the ResourceChangeScanner >>> > (ResourceFactory.getResourceChangeScannerService().start()), however, >>> the >>> > loaded package disappears from the session. >>> > >>> > So there are now two things I need to understand: >>> > 1. Why does starting the scanner clear the packages loaded in the >>> session? >>> > 1. What is the issue when using Spring, as with Spring I still have my >>> > package loaded in the session but no rules? >>> > >>> >>> >>> -- >>> View this message in context: >>> http://drools.46999.n3.nabble.com/No-rules-loaded-when-reading-package-fr... >>> 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 >>> >> >> >> _______________________________________________ >> rules-users mailing list >> rules-users(a)lists.jboss.org >> https://lists.jboss.org/mailman/listinfo/rules-users >> >> >

Confirmed. There is no issue loading the package from the filesystem. We do need to keep the kbase in sync without restarting our app, so for now we'll just avoid loading directly from Guvnor. Thanks a lot both for your help. Esteban wrote: > > I think you are fighting with this known bug: > https://issues.jboss.org/browse/GUVNOR-1699 > > ResourceChangeScanner is marking guvnor's resources as removed. I > committed > a patch some days ago. > If you are not interested in keep the kbase in sync with the changes made > in Guvnor, a valid workaround could be not to use the kagent and get the > pkg directly from Guvnor's URL > > Best Regards, > > XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX > > Esteban Aliverti > - Developer @ http://www.plugtree.com > - Blog @ http://ilesteban.wordpress.com > > > On Wed, Nov 16, 2011 at 3:43 PM, sgo &lt;simon.goumaz@&gt; wrote: > >> Update: if I don't start the resource change scanner, the session created >> with Spring is fine too. So, when starting the scanner, the difference >> between the Spring case (package loaded but no rules) and the Java code >> case >> (no package at all) may be due to code sequence, as in the code I'm using >> the scanner is started in my service class constructor, after creating >> the >> session in Java code but before Spring beans are injected. Depending on >> your >> replies I may then try testing with different sequences. >> >> >> sgo wrote: >> > >> > @Michael: >> > >> > Yes this is the right track... I created an alternate session without >> > Spring by simply loading the package from the URL with a >> KnowledgeBuilder, >> > it worked (the rules were there). >> > >> > Then I went on and created another session with a KnowledgeAgent >> loading >> > my XML ChangeSet (still without Spring), and I observed the following: >> > 1. When the session is created, all is fine (package and rules loaded >> > properly in session) >> > 2. When I start the ResourceChangeScanner >> > (ResourceFactory.getResourceChangeScannerService().start()), however, >> the >> > loaded package disappears from the session. >> > >> > So there are now two things I need to understand: >> > 1. Why does starting the scanner clear the packages loaded in the >> session? >> > 1. What is the issue when using Spring, as with Spring I still have my >> > package loaded in the session but no rules? >> > >> >> >> -- >> View this message in context: >> http://drools.46999.n3.nabble.com/No-rules-loaded-when-reading-package-fr... >> Sent from the Drools: User forum mailing list archive at Nabble.com. >> _______________________________________________ >> rules-users mailing list >> rules-users@.jboss >> https://lists.jboss.org/mailman/listinfo/rules-users >> > > _______________________________________________ > rules-users mailing list > rules-users@.jboss > https://lists.jboss.org/mailman/listinfo/rules-users > -- View this message in context: http://drools.46999.n3.nabble.com/No-rules-loaded-when-reading-package-fr... 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