Re: [rules-users] trouble dynamically changing packages of a rulebase

I'm using 4.07. Sorry for the long winded post but I was trying to give enough background and code snippets to be useful. The way I'm running data through drools is in a batch mode. As I've gained more experience I see that my app may be better suited for the stateless mode, but for now I'm still running stateful. A "batch" consists of: - loop on array of objects calling session.insert(a, true); // then I save off the factHandle - session.fireAllRules(); - loop on array of objects calling session.retract(factHandle); All has worked fine until I attempted to add the ability to dynamically update a rule package. It worked both under Eclipse, and running just "java -jar myCompiledApp.jar". My application has rules split into two parts. Part A (adm.rules) is static and contains the logic tied directly to the application. Part B (adm.userrules) is the user half of the rules where the application can be customized to fit the user. After adding the logic to dynamically add the user rules all appears to work fine when run in eclipse. BUT when I run outside of eclipse (i.e. java -jar ....) it doesn't work. Only part of my static rules fire. Here is the code snippet that dynamically loads the new package: pkg = pMgr.buildDslPackage(rule_str, dsl_def_file); if (userRulesLoaded) { Package pkgA[] = ruleBase.getPackages(); for (Package p : pkgA) { System.out.println("LOADED: " + p.getName()); } System.out.println("Removing: " + UserXmlRulesToDrls.getUserRulesPackageName()); pMgr.removePackage(ruleBase, UserXmlRulesToDrls.getUserRulesPackageName()); } System.out.println("Adding: " + pkg.getName()); pMgr.addPackage(ruleBase, pkg); pMgr.createSession(ruleBase); userRulesLoaded = true; } pMgr.addPackage, createSession, etc. are small wrappers: public void createSession(RuleBase ruleBase) { if (session != null) { session.dispose(); } session = ruleBase.newStatefulSession(); } public void addPackage(RuleBase ruleBase, Package pkg) throws Exception { ruleBase.addPackage(pkg); } public void removePackage(RuleBase ruleBase, String pkgName) { ruleBase.removePackage(pkgName); } Here are a couple of dummy rules I added in an attempt to debug this. These are from the static "adm.rules" package: rule "testme" when $ar : ActionArchive(); then System.out.println("Archive: " + $ar.getFile().getFullPath()); end rule "testme2" when $f : File(); then System.out.println("File: " + $f.getFullPath()); end I always get the "archive" print (as expected), but never get the "File" print after the first dynamically set of user rules (the first load works, second and subsequent loading of user rules doesn't). My user rules also have a "when" based on File() and it always works as expected. Last, here is some sample output, running the exact same set of input through each time. Each set does two things: 1. load a set of user rules 2. execute a "batch" of a single file bash-3.2# /usr/jdk/instances/jdk1.6.0/bin/java -jar admDrools.jar com.sun.evtl.pe.customerPolicy.adm.rules Adding: com.sun.evtl.pe.customerPolicy.adm.userrules ArchiveRdy: /zp1/fs2/23kd Mask WFC: /zp1/fs2/23kd File: /zp1/fs2/23kd Archive: /zp1/fs2/23kd <<< end of first run, all OK LOADED: com.sun.evtl.pe.customerPolicy.adm.rules LOADED: com.sun.evtl.pe.customerPolicy.adm.userrules Removing: com.sun.evtl.pe.customerPolicy.adm.userrules Adding: com.sun.evtl.pe.customerPolicy.adm.userrules Archive: /zp1/fs2/23kd <<< end of second run, missing "File", "Mask", and "ArchiveRdy" statements LOADED: com.sun.evtl.pe.customerPolicy.adm.rules LOADED: com.sun.evtl.pe.customerPolicy.adm.userrules Removing: com.sun.evtl.pe.customerPolicy.adm.userrules Adding: com.sun.evtl.pe.customerPolicy.adm.userrules Archive: /zp1/fs2/23kd <<< end of third run, again; missing "File", "Mask", and "ArchiveRdy" statements Charles Binford _______________________________________________ rules-users mailing list rules-users(a)lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users