[jboss-jira] [JBoss JIRA] Closed: (JBRULES-2011) Calling addPackage causes rules that use "collect" to incorrectly fire.

Calling addPackage causes rules that use "collect" to incorrectly fire. ----------------------------------------------------------------------- Key: JBRULES-2011 URL: https://jira.jboss.org/jira/browse/JBRULES-2011 Project: JBoss Drools Issue Type: Bug Security Level: Public(Everyone can see) Affects Versions: 4.0.7 Environment: Windows XP using Java version 1.6. Reporter: Janneman Robinson Assignee: Edson Tirelli Original Estimate: 1 hour Remaining Estimate: 1 hour Steps to reproduce: 1. Create a rulebase containing at least one Package. The package should contain at least one rule that uses the "collect" statement (ie, with a condition on how many elements are collected) and no additional conditional elements in the LHS of the rule. 2. Request a new StatefulSession using myRuleBase.newStatefulSession() or myRuleBase.newStatefulSession(true). 3. Add an altered package to the RuleBase using myRuleBase.addPackage(x); Expected: nothing Result: the call to addPackage causes a "fireAllRules". During this process, rules that depend on a "collect" statement are executed whether or not the conditioned number of facts collected was met. I am sorry not having the time to further investigate different combinations and/or versions of the software myself. Below is a testcase that demonstrates the behaviour. Note: myRuleBase.newStatefulSession(false) does not cause this behaviour. public class TestAddPkg extends TestCase { private static boolean alarmRaised; public static void raiseAlarm() { alarmRaised = true; } public void testKeepReferenceFalse() throws Exception { alarmRaised = false; RuleBase rules = null; rules = addSourceToRules(createRule1(), rules); rules.newStatefulSession(false); rules = addSourceToRules(createRule2(), rules); // We never inserted any alarms, so... assertFalse(alarmRaised); } public void testKeepReferenceTrue() throws Exception { alarmRaised = false; RuleBase rules = null; rules = addSourceToRules(createRule1(), rules); rules.newStatefulSession(true); rules = addSourceToRules(createRule2(), rules); // We never inserted any alarms, so... assertFalse(alarmRaised); } private RuleBase addSourceToRules(String source, RuleBase rules) throws DroolsParserException, IOException, Exception { System.out.println(source); StringReader reader = new StringReader(source); PackageBuilder builder = new PackageBuilder(); builder.addPackageFromDrl(reader); Package pkg = builder.getPackage(); if (rules == null) { rules = RuleBaseFactory.newRuleBase(); rules.addPackage(pkg); } else { Package[] packages = rules.getPackages(); for (Package pack : packages) { if (pack.getName().equals(pkg.getName())) { Vector<Rule> rulesVector = new Vector<Rule>(); Rule[] packageRules = pack.getRules(); { for (Rule rule : packageRules) { rulesVector.add(rule); } } rules.removePackage(pack.getName()); for (Rule rule : rulesVector) { pkg.addRule(rule); } } } rules.addPackage(pkg); } return rules; } public class Alarm { private String level; public Alarm(String level) { this.level = level; } public void setLevel(String level) { this.level = level; } public String getLevel() { return level; } } private String createRule2() { StringBuilder sb = new StringBuilder(); sb.append("package alarms; \n"); sb.append("import java.util.ArrayList; \n"); sb.append("TestAddPkg; \n"); sb.append("TestAddPkg.Alarm; \n"); sb.append("rule highLvlAlarm \n"); sb.append("when \n"); sb.append(" $a : ArrayList(size > 0) from collect (Alarm( level != \"low\") )\n"); sb.append("then \n"); sb.append(" // callTheCops(); \n"); sb.append(" TestAddPkg.raiseAlarm(); \n"); sb.append(" System.out.println(\">>>Police alerted.<<<\"); \n"); sb.append("end \n"); return sb.toString(); } private String createRule1() { StringBuilder sb = new StringBuilder(); sb.append("package alarms; \n"); sb.append("import java.util.ArrayList; \n"); sb.append("import TestAddPkg; \n"); sb.append("import TestAddPkg.Alarm; \n"); sb.append("rule lowLvlAlarm \n"); sb.append("when \n"); sb.append(" $a : ArrayList(size > 0) from collect (Alarm( level == \"low\")) \n"); sb.append("then \n"); sb.append(" // quietlyInvestigateLowLvlAlarms(); \n"); sb.append(" System.out.println(\"All is good.\"); \n"); sb.append("end \n"); return sb.toString(); } }