Hi, I would like to build a KnowledgeBase using the "KnowledgeAgent + change-set" method but I can't get it working when the change-set references a BRL that needs an "drools.package" file (for imports): I get errors like "[2010:12:363 12:12:31:debug] KnowledgeAgent has KnowledgeBuilder errors object=Unable to resolve ObjectType...". Here is my change-set.xml file: <?xml version="1.0" encoding="UTF-8"?> <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/... "> <add> <resource source="classpath:misc/KBuilder_Test.brl" type="BRL" /> </add> </change-set> Please note that it works when the change-set references a DRL resource instead of a BRL. Adding the "drools.package" file as a DRL resource does not work neither. The only Jira that seems to be related is: https://issues.jboss.org/browse/JBRULES-2103 Does any of you has an idea? Many thanks in advance, Best regards, Bruno. _______________________________________________ rules-users mailing list rules-users(a)lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users

Hi Esteban, Thank you for your fast answer! I am planning to integrate the Drools Eclipse plugin into an RCP application (that will be used to create rules, but not only). Maybe I am wrong but I would like to avoid using Guvnor that seems to be complicated from a deployment point of view (an additional server into our architecture). That's why I planned to build the KnowledgeBase (based on the files generated by the Drools Eclipse plugin in my application) and to fire the rules using the API. I have the impression (but maybe it is just a consequence of my inexperience) that Drools' API lacks some kind of "put the pieces together" feature that would ease the KnowledgeBase building. Something like a KnowledgeAgent that would take a directory as input, build DRLs from BRLs + drools packages (expected next to BRLs), etc... I also have the impression that the directory layout and file extensions could be "enforced" (a bit like javac that expects .java files located in directories corresponding to packages). There seems to be conventions like that in Guvnor ("sub-directories" in packages containing technical rules, business rules, dsls... rule "inheritance" from a parent package to sub-package, and useful things like that) but they do not seem to have any equivalent in the Drools' Core API. And that's exactly where I am :-). Anyway, I have tried adding the "drools.package" as a DRL into the change-set... : <add> <resource source="classpath:misc/drools.package" type="DRL" /> <resource source="classpath:misc/KBuilder_Test.brl" type="BRL" /> </add> ...but it does not work (I still get the "KnowledgeAgent has KnowledgeBuilder errors object=Unable to resolve ObjectType..." error). Best regards, Bruno. Esteban Aliverti a écrit : Why are you trying to work with BRL format? This format is only used to store rules in guvnor/eclipse and it is not prepared to be used in any environment. The main problem is that BRL doesn't contain all the information needed to be compiled. For example, it doesn't contain any package nor import definition. What you could try is to add a DRL in your change-set (before the BRL) containing only the import statements. Could you please try it and tell me the results? Best Regards, XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX Esteban Aliverti - Developer @ http://www.plugtree.com - Blog @ http://ilesteban.wordpress.com _______________________________________________ rules-users mailing list rules-users(a)lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users