[JBoss JIRA] Created: (JBRULES-2853) ResourceFactory.newClassPathResource(drlPath) behaves differently on different platforms (linux, windows): it parses the file with different encodings
by Geoffrey De Smet (JIRA)
ResourceFactory.newClassPathResource(drlPath) behaves differently on different platforms (linux, windows): it parses the file with different encodings
------------------------------------------------------------------------------------------------------------------------------------------------------
Key: JBRULES-2853
URL: https://issues.jboss.org/browse/JBRULES-2853
Project: Drools
Issue Type: Bug
Security Level: Public (Everyone can see)
Reporter: Geoffrey De Smet
Assignee: Mark Proctor
Priority: Critical
This really sucks for non English people :) English people write in pure ASCII, so they don't suffer from this problem.
French, Dutch etc mix in Latin-1 chars. Russian, Chinese use something else.
The root problem: There are 2 ways to create an InputStream:
- with encoding = GOOD, use encoding "UTF-8" and there are no problems.
- without encoding: use the default platform encoding = BAD
-- Linux: UTF-8, Windows in Belgium: Latin-1, Windows in China: Chinese-1, Windows in Sweden: Latin-2, ...
-- Java's InputStream should have just defaulted it on UTF-8
Proposition 1: Overloaded method which has an extra String encoding:
- ResourceFactory.newClassPathResource(drlPath, encoding)
- similar tactic as InputStream
Proposition 2: Keep it simple. We decide what a DRL file is.
Just like an XML file says to hell with the specified encoding, so can we.
Note: All XML files default to UTF-8 encoding, and you can overwrite it in a header in the XML file itself (= self-describing): no need to mess around in the java code.
Same principle: All DRL files are default UTF-8 encoding. Optionally we can define an encoding header later.
I strongly prefer proposition 2. The world has got enough encoding problems.
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14 years, 3 months
[JBoss JIRA] Created: (JBRULES-1917) JBRMS does not support business rules with non ascii characters
by Gregory Chazalon (JIRA)
JBRMS does not support business rules with non ascii characters
---------------------------------------------------------------
Key: JBRULES-1917
URL: https://jira.jboss.org/jira/browse/JBRULES-1917
Project: JBoss Drools
Issue Type: Bug
Security Level: Public (Everyone can see)
Affects Versions: 4.0.7
Reporter: Gregory Chazalon
Assignee: Mark Proctor
A very simple rule containing some Latin1 characters (e.g. 'é', 'à'..), is not compiled correctly when using the JBRMS web app.
The exact same rule defined in a DRL file, and compiled with the drools compiler API is well handled (no characters mismatch).
Actually, the rule defined both ways is :
{code}
rule "latin_message"
when
Let information message
then
information message containing latin characters léger problème à résoudre hôpital
end
{/code}
I strongly suspect a poor character encoding scheme inside the JBRMS code, but I haven't been able to identify it.
The problem is illustrated by the LatinMessageTest test case, bundled inside the small eclipse project provided.
It has two test methods, one building the rule using the drools compiler API, and the other using a binary package built with JBRMS.
The second one fails as of the poor character encoding suspected inside JBRMS web app.
Any help is appreciated.
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14 years, 3 months
[JBoss JIRA] Created: (JBRULES-1602) The order of RHS statements shouldn't affect behavior (insertLogical)
by Patrick Gras (JIRA)
The order of RHS statements shouldn't affect behavior (insertLogical)
---------------------------------------------------------------------
Key: JBRULES-1602
URL: http://jira.jboss.com/jira/browse/JBRULES-1602
Project: JBoss Drools
Issue Type: Bug
Security Level: Public (Everyone can see)
Environment: Drools 4.0.7 & 4.0.4, Java5, eclipse compiler, windows XP.
Reporter: Patrick Gras
Assigned To: Mark Proctor
I have a class 'Cat' that is dynamic (JavaBean with PropertyChangeSupport ) with only a 'name' attribute.
Then I have the following rule:
rule "test"
when
$cat:Cat( name == "tom" )
then
$cat.setName("cat");
insertLogical(new String("test"));
end
When I test the rule against a Cat named tom, the logical inserted fact is not retracted. (So the fact is inserted because the rule matches, but is not retracted even if the rule is no more matching at the end.)
If I change the order of the RHS, it works fine. The fact is inserted and then retracted.
rule "test"
when
$cat:Cat( name == "tom" )
then
insertLogical(new String("test"));
$cat.setName("cat");
end
So the behavior depends on the ordering of the RHS statements.
Here is a complete example to show the problem:
public class Cat {
private String name;
protected PropertyChangeSupport changes = new PropertyChangeSupport(this);
public Cat(String name) {
super();
this.name = name;
}
public String getName() {
return this.name;
}
public void setName(String name) {
final String oldName = this.name;
this.name = name;
this.changes.firePropertyChange("name", oldName, name);
}
public void addPropertyChangeListener(final PropertyChangeListener listener) {
this.changes.addPropertyChangeListener(listener);
}
public void removePropertyChangeListener(
final PropertyChangeListener listener) {
this.changes.removePropertyChangeListener(listener);
}
}
public class RHSOrderingTest {
private static final String PACKAGE = "package ch.generali.pgr.rule ";
private static final String IMPORT = "import ch.generali.pgr.rules.Cat ";
private static final String WHEN = "rule \"test ok\" when $cat:Cat( name == \"tom\" ) ";
private static final String THEN_OK = "then insertLogical(Integer.valueOf(1)); $cat.setName(\"cat\"); end";
private static final String THEN_KO = "then $cat.setName(\"cat\"); insertLogical(Integer.valueOf(1)); end";
private static final String RULE_OK = PACKAGE + IMPORT + WHEN + THEN_OK;
private static final String RULE_KO = PACKAGE + IMPORT + WHEN + THEN_KO;
private static final String QUERY = "query \"My test Integer\" integer : Integer( intValue == 1 ) end";
public static void main(String[] args) {
boolean ok_1 = testWithRule(RULE_OK);
boolean ok_2 = testWithRule(RULE_KO);
System.out.println((ok_1 ? "SUCCESS: " : "FAILED: ") + THEN_OK);
System.out.println((ok_2 ? "SUCCESS: " : "FAILED: ") + THEN_KO);
}
private static boolean testWithRule(String rule) {
Cat tom = new Cat("tom");
RuleBase rb = createRuleBase(rule + "\n" + QUERY);
WorkingMemory wm = rb.newStatefulSession();
wm.insert(tom, true);
wm.fireAllRules();
QueryResults results = wm.getQueryResults("My test Integer");
return results.size() == 0;
}
private static RuleBase createRuleBase(String rules) {
try {
RuleBase ruleBase = RuleBaseFactory.newRuleBase();
PackageBuilderConfiguration conf = new PackageBuilderConfiguration();
PackageBuilder packageBuilder = new PackageBuilder(conf);
Reader source = new StringReader(rules);
packageBuilder.addPackageFromDrl(source);
Package pkg = packageBuilder.getPackage();
ruleBase.addPackage(pkg);
return ruleBase;
} catch (Exception e) {
throw new RuntimeException(e);
}
}
}
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14 years, 3 months
[JBoss JIRA] Created: (JBRULES-2685) Performance degradation from 5.0.1 to 5.1.0
by Greg Barton (JIRA)
Performance degradation from 5.0.1 to 5.1.0
-------------------------------------------
Key: JBRULES-2685
URL: https://jira.jboss.org/browse/JBRULES-2685
Project: Drools
Issue Type: Quality Risk
Security Level: Public (Everyone can see)
Components: drools-core
Affects Versions: 5.1.0.FINAL
Environment: OSX 1.6.2
Reporter: Greg Barton
Assignee: Mark Proctor
Priority: Minor
Attachments: DroolsNested.tar.gz
I've observed a sizable (25%) performance degradation between the 5.0.1 and 5.1.0 releases. I've attached a sample project that tests the performance of matching nested objects. (ANd compares direct reference matching and the performance pitfalls of "from," but that's beside the current point.)
If you switch the pom.xml from using 5.0.1 to 5.1.0 for the drools dependencies you'll see 25% longer execution times on the tests. (mvn test)
Here's the test output:
5.0.1
reference.drl Count: 2000
reference.drl Time: 267ms
reference.drl Time per element: 0.1335ms
BAR Duplicates: 780
FOO Duplicates: 880
reference.drl Count: 20000
reference.drl Time: 1249ms
reference.drl Time per element: 0.06245ms
BAR Duplicates: 7702
FOO Duplicates: 8040
from.drl Count: 200
from.drl Time: 1139ms
from.drl Time per element: 5.695ms
BAR Duplicates: 112
FOO Duplicates: 102
reference.drl Count: 200
reference.drl Time: 5ms
reference.drl Time per element: 0.025ms
BAR Duplicates: 86
FOO Duplicates: 60
5.1.0
reference.drl Count: 2000
reference.drl Time: 300ms
reference.drl Time per element: 0.15ms
BAR Duplicates: 788
FOO Duplicates: 820
reference.drl Count: 20000
reference.drl Time: 1564ms
reference.drl Time per element: 0.0782ms
BAR Duplicates: 8142
FOO Duplicates: 7960
from.drl Count: 200
from.drl Time: 3543ms
from.drl Time per element: 17.715ms
BAR Duplicates: 68
FOO Duplicates: 90
reference.drl Count: 200
reference.drl Time: 13ms
reference.drl Time per element: 0.065ms
BAR Duplicates: 84
FOO Duplicates: 74
On the most taxing test (20k objects) 5.0.1 took 1249ms while 5.1.0 took 1564ms, and for larger tests the effect is more pronounced. This is primarily a test of == on object references.
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14 years, 3 months
[JBoss JIRA] Created: (JBRULES-2590) Maven build fails in Linux with LANG=fr_FR.utf8
by Jean-Marc Vanel (JIRA)
Maven build fails in Linux with LANG=fr_FR.utf8
------------------------------------------------
Key: JBRULES-2590
URL: https://jira.jboss.org/browse/JBRULES-2590
Project: Drools
Issue Type: Bug
Security Level: Public (Everyone can see)
Environment: % uname -a
Linux jmv-desktop 2.6.32-23-generic #37-Ubuntu SMP Fri Jun 11 08:03:28 UTC 2010 x86_64 GNU/Linux
% java -version
java version "1.6.0_20"
Java(TM) SE Runtime Environment (build 1.6.0_20-b02)
Java HotSpot(TM) 64-Bit Server VM (build 16.3-b01, mixed mode)
Reporter: Jean-Marc Vanel
Assignee: Mark Proctor
With sources from Subversion, making a Maven build on drools-trunk gives 3 errors :
Tests in error:
testDate(org.drools.base.FieldFactoryTest)
testString(org.drools.base.mvel.MVELCalendarCoercionTest)
testString(org.drools.base.mvel.MVELDateCoercionTest)
Tests run: 578, Failures: 0, Errors: 3, Skipped: 1
[ERROR] BUILD FAILURE
However this runs fine:
LANG=en mvn install
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14 years, 3 months
[JBoss JIRA] Created: (JBRULES-2298) Can't use functions when MVEL dialect is set at package level
by Michael Neale (JIRA)
Can't use functions when MVEL dialect is set at package level
-------------------------------------------------------------
Key: JBRULES-2298
URL: https://jira.jboss.org/jira/browse/JBRULES-2298
Project: Drools
Issue Type: Bug
Security Level: Public (Everyone can see)
Components: drools-compiler
Affects Versions: 5.0.1.FINAL
Reporter: Michael Neale
Assignee: Edson Tirelli
Priority: Critical
package jboss.cloud
dialect "mvel"
#trying to get functions working...
rule "something"
when
s: SimpleFact(id == 42, name == "michael")
then
System.out.println("hello");
end
function String doSomething() {
return "hey";
}
And I get:
java.lang.NullPointerException
at org.drools.rule.builder.dialect.mvel.MVELDialect.compile(MVELDialect.java:510)
at org.drools.rule.builder.dialect.mvel.MVELDialect.addFunction(MVELDialect.java:338)
at org.drools.compiler.PackageBuilder.addFunction(PackageBuilder.java:1104)
at org.drools.compiler.PackageBuilder.addPackage(PackageBuilder.java:626)
at org.drools.compiler.PackageBuilder.addPackageFromDrl(PackageBuilder.java:290)
at org.drools.compiler.PackageBuilder.addKnowledgeResource(PackageBuilder.java:488)
at org.drools.builder.impl.KnowledgeBuilderImpl.add(KnowledgeBuilderImpl.java:25)
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14 years, 3 months
[JBoss JIRA] Created: (JBRULES-2797) HashTableIterator of AbstractHashTable is not Thread Safe
by Anatoly Polinsky (JIRA)
HashTableIterator of AbstractHashTable is not Thread Safe
----------------------------------------------------------
Key: JBRULES-2797
URL: https://jira.jboss.org/browse/JBRULES-2797
Project: Drools
Issue Type: Bug
Security Level: Public (Everyone can see)
Components: drools-core, drools-core (flow)
Affects Versions: 5.1.1.FINAL, FUTURE
Environment: N/A
Reporter: Anatoly Polinsky
Assignee: Mark Proctor
public static class HashTableIterator has a shared state that gets inconsistent when multiple threads work on the getting the next entity:
public Object next() {
if ( this.entry != null ) {
PART 1 >> this.entry = this.entry.getNext();
}
// if no entry keep skipping rows until we come to the end, or find one that is populated
while ( this.entry == null && ++this.row < this.length ){
PART II >> this.entry = this.table[this.row];
}
return this.entry;
}
In "PART 1", the race condition causes "this.entry" be NULL in "this.entry.getNext()", and throws the exception below.
In "PART 2", the race condition causes inconsistent state of "this.row", and throws multiple exceptions, but mostly the one that is described in: https://jira.jboss.org/browse/JBRULES-2794
java.util.concurrent.ExecutionException: org.drools.RuntimeDroolsException: Unexpected exception executing action org.drools.reteoo.ReteooWorkingMemory$WorkingMemoryReteAssertAction@1ff323
at java.util.concurrent.FutureTask$Sync.innerGet(FutureTask.java:222)
at java.util.concurrent.FutureTask.get(FutureTask.java:83)
at org.custom.workflow.stress.test.WorkflowStressTest.shouldRunFlow(WorkflowStressTest.java:49)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:44)
at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:15)
at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:41)
at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:20)
at org.springframework.test.context.junit4.statements.RunBeforeTestMethodCallbacks.evaluate(RunBeforeTestMethodCallbacks.java:74)
at org.springframework.test.context.junit4.statements.RunAfterTestMethodCallbacks.evaluate(RunAfterTestMethodCallbacks.java:82)
at org.springframework.test.context.junit4.statements.SpringRepeat.evaluate(SpringRepeat.java:72)
at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.runChild(SpringJUnit4ClassRunner.java:240)
at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:50)
at org.junit.runners.ParentRunner$3.run(ParentRunner.java:193)
at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:52)
at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:191)
at org.junit.runners.ParentRunner.access$000(ParentRunner.java:42)
at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:184)
at org.springframework.test.context.junit4.statements.RunBeforeTestClassCallbacks.evaluate(RunBeforeTestClassCallbacks.java:61)
at org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:31)
at org.springframework.test.context.junit4.statements.RunAfterTestClassCallbacks.evaluate(RunAfterTestClassCallbacks.java:70)
at org.junit.runners.ParentRunner.run(ParentRunner.java:236)
at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.run(SpringJUnit4ClassRunner.java:180)
at org.junit.runner.JUnitCore.run(JUnitCore.java:157)
at com.intellij.junit4.JUnit4IdeaTestRunner.startRunnerWithArgs(JUnit4IdeaTestRunner.java:94)
at com.intellij.rt.execution.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:192)
at com.intellij.rt.execution.junit.JUnitStarter.main(JUnitStarter.java:64)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at com.intellij.rt.execution.application.AppMain.main(AppMain.java:115)
Caused by: org.drools.RuntimeDroolsException: Unexpected exception executing action org.drools.reteoo.ReteooWorkingMemory$WorkingMemoryReteAssertAction@1ff323
at org.drools.common.AbstractWorkingMemory.executeQueuedActions(AbstractWorkingMemory.java:1473)
at org.drools.common.AbstractWorkingMemory.startProcess(AbstractWorkingMemory.java:1631)
at org.drools.impl.StatefulKnowledgeSessionImpl.startProcess(StatefulKnowledgeSessionImpl.java:318)
at org.drools.command.runtime.process.StartProcessCommand.execute(StartProcessCommand.java:99)
at org.drools.command.runtime.process.StartProcessCommand.execute(StartProcessCommand.java:38)
at org.drools.persistence.session.SingleSessionCommandService.execute(SingleSessionCommandService.java:285)
at org.drools.command.impl.CommandBasedStatefulKnowledgeSession.startProcess(CommandBasedStatefulKnowledgeSession.java:193)
at net.sf.cglib.proxy.MethodProxy.invoke(MethodProxy.java:191)
at org.springframework.aop.framework.Cglib2AopProxy$CglibMethodInvocation.invokeJoinpoint(Cglib2AopProxy.java:692)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:150)
at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:110)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)
at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:89)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)
at org.springframework.aop.framework.Cglib2AopProxy$DynamicAdvisedInterceptor.intercept(Cglib2AopProxy.java:625)
at org.custom.workflow.stress.test.WorkflowRunner.call(WorkflowRunner.java:38)
at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303)
at java.util.concurrent.FutureTask.run(FutureTask.java:138)
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
at java.lang.Thread.run(Thread.java:662)
Caused by: java.lang.NullPointerException
at org.drools.core.util.AbstractHashTable$HashTableIterator.next(AbstractHashTable.java:312)
at org.drools.reteoo.EntryPointNode.updateSink(EntryPointNode.java:323)
at org.drools.reteoo.ObjectTypeNode.attach(ObjectTypeNode.java:303)
at org.drools.reteoo.builder.PatternBuilder.attachObjectTypeNode(PatternBuilder.java:257)
at org.drools.reteoo.ClassObjectTypeConf.<init>(ClassObjectTypeConf.java:92)
at org.drools.common.ObjectTypeConfigurationRegistry.getObjectTypeConf(ObjectTypeConfigurationRegistry.java:68)
at org.drools.reteoo.Rete.assertObject(Rete.java:111)
at org.drools.reteoo.ReteooRuleBase.assertObject(ReteooRuleBase.java:280)
at org.drools.reteoo.ReteooWorkingMemory$WorkingMemoryReteAssertAction.execute(ReteooWorkingMemory.java:360)
at org.drools.common.AbstractWorkingMemory.executeQueuedActions(AbstractWorkingMemory.java:1471)
... 24 more
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14 years, 3 months
[JBoss JIRA] Created: (JBRULES-2834) TimerAndCalendarTest will fail 4 tests on non english environments
by Burkhard Vogel (JIRA)
TimerAndCalendarTest will fail 4 tests on non english environments
------------------------------------------------------------------
Key: JBRULES-2834
URL: https://issues.jboss.org/browse/JBRULES-2834
Project: Drools
Issue Type: Bug
Security Level: Public (Everyone can see)
Components: drools-compiler
Affects Versions: 5.2.0.M1
Environment: Windows XP 32bit *ESP*, JDK 1.6.0_21
Reporter: Burkhard Vogel
Assignee: Mark Proctor
Priority: Minor
When running the mvn install target on a non English system the following test will fail
- testCalendarsWithIntervalsAndStartAndEnd
- testCalendarsWithIntervalsAndStartAndLimit
- testCalendarsWithCronAndStartAndEnd
- testCalendarsWithCronAndStartAndLimit
All these use dates like 03-JAN-2010 in the internal rule definition with will not work in countries where there does not exist a month starting with JAN, for instance in Spanish that would be ENE (from enero) and the test result spills out a date format exception.
These can be alleviated by running the command with two parameters (-Ddrools.defaultcountry=US -Ddrools.defaultlanguage=en) but still the attached patch has to be applied for four other language specific dates within the test code.
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14 years, 3 months
[JBoss JIRA] Created: (JBRULES-1665) put offending rule name in exception messages
by Alex McCarrier (JIRA)
put offending rule name in exception messages
---------------------------------------------
Key: JBRULES-1665
URL: http://jira.jboss.com/jira/browse/JBRULES-1665
Project: JBoss Drools
Issue Type: Feature Request
Components: Drl Parser/Builder
Affects Versions: FUTURE
Environment: all
Reporter: Alex McCarrier
Assigned To: Mark Proctor
Priority: Minor
It would be nice if drools compiler error messages would include the rule that caused the error. For instance, predicate eval errors, or "unable to resolve property" errors would state which rule was being evaluated when it encountered an error. Currently the developer has to go through the rules file looking for lines similar to the one reported in the error. Also, when it's this much work for a developer to find the offending rule, it is pretty much impossible for business users to figure out which rule they messed up.
If it's at all possible to add the rule name to these error messages, please do so. It would make our lives a lot easier. :)
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14 years, 3 months
[JBoss JIRA] Created: (JBRULES-680) Support real-time problem modification during solving with utils for the single thread subsystem
by Geoffrey De Smet (JIRA)
Support real-time problem modification during solving with utils for the single thread subsystem
------------------------------------------------------------------------------------------------
Key: JBRULES-680
URL: http://jira.jboss.com/jira/browse/JBRULES-680
Project: JBoss Rules
Issue Type: Feature Request
Security Level: Public (Everyone can see)
Components: Solver
Reporter: Geoffrey De Smet
Assigned To: Geoffrey De Smet
Rete/Drools is single threaded, and so is the current implementation of the localsearchsolver,
but this single thread subsystem should be documented
and utils should be provided to allow for real-time problem modification
A simple way would be to use a producer-consumer pattern with a non blocking queue which holds "problem moves".
Each step the problem moves could be used.
Problems:
- bestsolutionrecalled also needs it's score adjusted. so we'll need a 2th working memory:
-- EITHER temporary, just for the problem move (or set of problem moves)
-- EITHER all the time, but then we'd have to hold a chain of moves, some of which might not be doable at the end
- cached selectors must be notified of refreshing their cache
- solution cloning normally doesn't clone the problem facts, just the proposed solution references. Do we need a full clone now?
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14 years, 3 months