Allow to retrieve the KieBase and KieSession models from the KieContainer ------------------------------------------------------------------------- Key: DROOLS-1021 URL: https://issues.jboss.org/browse/DROOLS-1021 Project: Drools Issue Type: Enhancement Components: core engine Affects Versions: 6.3.0.Final Reporter: Geoffrey De Smet Assignee: Mario Fusco OptaPlanner is switching from using KieBase (with a drl classpath resource to retrieve the rules) to KContainer (with ksessionName to retrieve the rules), so it can function as part of a kjar. During bootstrap, it needs to check the rules if a specific Global is defined. Currently *it needs to instantiate a throwaway KieSession* to do that which is bad: {code} KieSession kieSession = kieContainer.newKieSession(ksessionName); // BAD KieBase kieBase = kieSession.getKieBase(); checkIfGlobalScoreHolderExists(kieBase); {code} It would be much nicer if we could do this instead: {code} KieBase kieBase = kieContainer.getKieBaseForKsessionName(ksessionName); checkIfGlobalScoreHolderExists(kieBase); {code} So the proposal is to add that new method kieContainer.getKieBaseForKsessionName(String ksessionName) For the record, here's that check method that's being called at bootstrap: {code} protected void checkIfGlobalScoreHolderExists(KieBase kieBase) { boolean hasGlobalScoreHolder = false; for (KiePackage kiePackage : kieBase.getKiePackages()) { for (Global global : kiePackage.getGlobalVariables()) { if (DroolsScoreDirector.GLOBAL_SCORE_HOLDER_KEY.equals(global.getName())) { hasGlobalScoreHolder = true; break; } } } if (!hasGlobalScoreHolder) { throw new IllegalArgumentException("The kieBase with kiePackages (" + kieBase.getKiePackages() + ") has no global field called " + DroolsScoreDirector.GLOBAL_SCORE_HOLDER_KEY + ".\n" + "Check if the rule files are found and if the global field is spelled correctly."); } } {code}