[JBoss JIRA] Created: (JBESB-193) Need support for notification generatoin from within ActionProcessor.process method
by Tom Fennelly (JIRA)
Need support for notification generatoin from within ActionProcessor.process method
-----------------------------------------------------------------------------------
Key: JBESB-193
URL: http://jira.jboss.com/jira/browse/JBESB-193
Project: JBoss ESB
Issue Type: Task
Security Level: Public (Everyone can see)
Affects Versions: 4.1
Reporter: Tom Fennelly
Assigned To: Mark Little
Fix For: 4.1
In version 4.0, the Action Processing pipeline management code raises notifications in response to an exception from the ActionProcessor.process method. The pipeline managemnt code calls the getOkNotification (no exception) or getErrorNotification (exception) to get the notification message.
For many reasons, this is a very flawed model. Notifications should be raised from within the process method by means of attaching the notifications (error or otherwise) to the message (the mechanism is a design issue). Once the process method returns, the pipline processing management code can check the message for notifications. If there are errors, it can/should (?) abort the message processing, send the error notification (by whatever notification options are configured on the listener) and signal the failure to the calling process (by whatever failure config is configured on the listener).
The getOk and getErro methods can then be removed.
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1 month
[JBoss JIRA] Created: (JGRP-457) Optimization: make threads return immediately if NAKACK has another active thread for the same sender
by Bela Ban (JIRA)
Optimization: make threads return immediately if NAKACK has another active thread for the same sender
-----------------------------------------------------------------------------------------------------
Key: JGRP-457
URL: http://jira.jboss.com/jira/browse/JGRP-457
Project: JGroups
Issue Type: Feature Request
Reporter: Bela Ban
Assigned To: Bela Ban
Priority: Minor
Fix For: 2.5
In NAKACK, when a thread places a message for sender S into the NakReceiverWindow NRW, it subsequently acquires a lock on NRW (lock by sender) and removes as many messages as possible and passes them up.
If many threads do this at the same time, all threads but one are blocked, and - when finally unblocked - usually return. This causes context switches and possibly cache flushing, so a better way would be to have the threads check whether another thread is already removing messages using a CAS operation *before* acquiring the lock.
The effect should be that no threads will wait on the lock unnecessarily, and thus fewer context switches, and more threads available to the pool.
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4 months, 2 weeks
[JBoss JIRA] Created: (JBRULES-2045) Rules Fact Error In Complex Condition Structure
by Hao Chen (JIRA)
Rules Fact Error In Complex Condition Structure
-----------------------------------------------
Key: JBRULES-2045
URL: https://jira.jboss.org/jira/browse/JBRULES-2045
Project: JBoss Drools
Issue Type: Bug
Security Level: Public (Everyone can see)
Components: drools-core
Affects Versions: 4.0.6
Reporter: Hao Chen
Assignee: Mark Proctor
We are running into a complex production rule that either doesn't work or generate errors. I debugged and it seems Drools is not using the correct fact for some segments of the rule conditions. Steps to reproduce
1. Build the attached test case
2. Run the DroolsDefectTest junit test, it should print value "Worked!" on the output console.
3. Modify the rule by remove the commented condition that uses variable b2.
4. Run the test again.
Expected result: the rule should output "Worked!" again.
Actual result: failed with error:
org.drools.RuntimeDroolsException: org.drools.test.Rule_test_0Eval4Invoker@68f1f17a : java.lang.NumberFormatException: For input string: "Y"
at org.drools.rule.EvalCondition.isAllowed(EvalCondition.java:82)
at org.drools.reteoo.EvalConditionNode.assertTuple(EvalConditionNode.java:148)
at org.drools.reteoo.SingleTupleSinkAdapter.propagateAssertTuple(SingleTupleSinkAdapter.java:20)
at org.drools.reteoo.JoinNode.assertObject(JoinNode.java:156)
at org.drools.reteoo.CompositeObjectSinkAdapter.propagateAssertObject(CompositeObjectSinkAdapter.java:318)
at org.drools.reteoo.AlphaNode.assertObject(AlphaNode.java:145)
at org.drools.reteoo.CompositeObjectSinkAdapter.propagateAssertObject(CompositeObjectSinkAdapter.java:299)
at org.drools.reteoo.ObjectTypeNode.assertObject(ObjectTypeNode.java:162)
at org.drools.reteoo.Rete.assertObject(Rete.java:175)
at org.drools.reteoo.ReteooRuleBase.assertObject(ReteooRuleBase.java:192)
at org.drools.reteoo.ReteooWorkingMemory.doInsert(ReteooWorkingMemory.java:71)
at org.drools.common.AbstractWorkingMemory.insert(AbstractWorkingMemory.java:915)
at org.drools.common.AbstractWorkingMemory.insert(AbstractWorkingMemory.java:887)
at org.drools.common.AbstractWorkingMemory.insert(AbstractWorkingMemory.java:688)
at com.firstbest.rules.DroolsDefectTest.test_drools(DroolsDefectTest.java:35)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at junit.framework.TestCase.runTest(TestCase.java:154)
at junit.framework.TestCase.runBare(TestCase.java:127)
at junit.framework.TestResult$1.protect(TestResult.java:106)
at junit.framework.TestResult.runProtected(TestResult.java:124)
at junit.framework.TestResult.run(TestResult.java:109)
at junit.framework.TestCase.run(TestCase.java:118)
at junit.framework.TestSuite.runTest(TestSuite.java:208)
at junit.framework.TestSuite.run(TestSuite.java:203)
at org.eclipse.jdt.internal.junit.runner.junit3.JUnit3TestReference.run(JUnit3TestReference.java:130)
at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:460)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:673)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:386)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:196)
Caused by: java.lang.NumberFormatException: For input string: "Y"
at java.lang.NumberFormatException.forInputString(Unknown Source)
at java.lang.Integer.parseInt(Unknown Source)
at java.lang.Integer.valueOf(Unknown Source)
at com.firstbest.rules.Field.intValue(Field.java:29)
at org.drools.test.Rule_test_0.eval4(Rule_test_0.java:32)
at org.drools.test.Rule_test_0Eval4Invoker.evaluate(Rule_test_0Eval4Invoker.java:20)
at org.drools.rule.EvalCondition.isAllowed(EvalCondition.java:77)
... 32 more
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13 years, 3 months
[JBoss JIRA] Created: (JBRULES-2052) DrlDumper does wrong dumps, when lhs contains complex conditions with And.
by Kateryna Rudenko (JIRA)
DrlDumper does wrong dumps, when lhs contains complex conditions with And.
----------------------------------------------------------------------------
Key: JBRULES-2052
URL: https://jira.jboss.org/jira/browse/JBRULES-2052
Project: JBoss Drools
Issue Type: Bug
Security Level: Public (Everyone can see)
Components: drools-core
Affects Versions: 5.0.0.CR1
Reporter: Kateryna Rudenko
Assignee: Mark Proctor
DrlDumper does wrong dumps, when lhs contains complex conditions with And.
When there is ConditionalElementDescr in other ConditionalElementDescr, DrlDumper prints condition without round brackets. But should, because formed text can not be parsed with DrlParser into the same tree structure.
Example 1.
rule in file "Test1.drl":
rule "continued_rule"
no-loop true
when
($a : Action1() || $b : Action2())
&&
($c : Action3() || $d : Action4())
then
System.out.println("Fired.");
end
And method:
public void test1() throws DroolsParserException
{
DrlParser parser = new DrlParser();
final InputStream drl = getClass().getResourceAsStream(
"Test1.drl");
final PackageDescr packageDescr = parser.parse(drl);
if (parser.hasErrors())
{
Assert.fail(parser.getErrors().toString());
}
final String dump = new DrlDumper().dump(packageDescr);
System.out.println(dump);
}
Output is:
rule "continued_rule"
no-loop true
when
$a : Action1( ) || $b : Action2( ) && $c : Action3( ) || $d : Action4( )
then
System.out.println("Fired.");
end
According to operation priority in this case will be
$a : Action1( ) || ($b : Action2( ) && $c : Action3( )) || $d : Action4( )
and it is quite another operation.
DrlDumper should support brackets to save operation grouping.
Example 2.
Rule
rule "continued_rule2"
no-loop true
when
($a : Action1() && $b : Action2())
||
($c : Action3() && $d : Action4())
then
System.out.println("Fired.");
end
Out after performing test1() from Example 1:
rule "continued_rule"
no-loop true
when
$a : Action1( ) || $c : Action3( )
then
System.out.println("Fired.");
end
DrlDumper lost $b : Action2() and $d : Action4()! It happened because processOrDescrList in DrlDumper.
In string
if ( descrString.endsWith( DrlDumper.eol ) ) {
descrString = descrString.substring( 0,
descrString.indexOf( DrlDumper.eol ) );
}
we lose all subconditions except first line. It should be
if ( descrString.endsWith( DrlDumper.eol ) ) {
descrString = descrString.substring( 0,
descrString.LastIndexOf( DrlDumper.eol ) );
}.
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13 years, 3 months
[JBoss JIRA] Created: (JBRULES-2040) Drools, Jboss AS, Dynamic Bean Generation
by Shawn Ritchie (JIRA)
Drools, Jboss AS, Dynamic Bean Generation
------------------------------------------
Key: JBRULES-2040
URL: https://jira.jboss.org/jira/browse/JBRULES-2040
Project: JBoss Drools
Issue Type: Task
Security Level: Public (Everyone can see)
Components: All
Affects Versions: 4.0.7
Environment: Jboss Application Server v4.2
Drools 4.0.7
Javassist
JDK1.6
Reporter: Shawn Ritchie
Assignee: Mark Proctor
The issues is this guys i am creating a bean dynamically in this simple example i have an arraylist of strings which will create a private field, and a getXXX and a setXXX method for each of these fields
The problem arises when i try to load the .drl file in the package builder which gives me the follow error (SEE BELOW)
I suspect it has something to do with the class loader or the package structure in the rules?
Any suggestion reading material or help would be greatly usefull
the code i have loaded is a simple application which replicates the error
22:20:59,435 ERROR [STDERR] Unable to create Field Extractor for 'name' of '[ClassObjectType class=com.beancreation.personXYZ]' in rule 'Credit Allowed' : [Rule name=Credit Allowed, agendaGroup=MAIN, salience=0, no-loop=false]
22:20:59,435 ERROR [STDERR] Rule Compilation error : [Rule name=Credit Allowed, agendaGroup=MAIN, salience=0, no-loop=false]
com/beancreation/Rule_Credit_Allowed_0.java (1:0) : The type java.lang.Object cannot be resolved. It is indirectly referenced from required .class files
com/beancreation/Rule_Credit_Allowed_0.java (1:8) : The package com.beancreation collides with a type
com/beancreation/Rule_Credit_Allowed_0.java (2:34) : The import com.beancreation cannot be resolved
22:20:59,435 INFO [STDOUT] Could not parse knowledge.
22:20:59,435 ERROR [STDERR] java.lang.IllegalArgumentException: Could not parse knowledge.
22:20:59,435 ERROR [STDERR] at com.expertsystem.DroolsExecution.loadRules(DroolsExecution.java:49)
22:20:59,435 ERROR [STDERR] at com.create.TestCase.run(TestCase.java:52)
22:20:59,445 ERROR [STDERR] at org.apache.jsp.index_jsp._jspService(index_jsp.java:74)
22:20:59,445 ERROR [STDERR] at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
22:20:59,445 ERROR [STDERR] at javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
22:20:59,445 ERROR [STDERR] at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:373)
22:20:59,445 ERROR [STDERR] at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:336)
22:20:59,445 ERROR [STDERR] at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:265)
22:20:59,445 ERROR [STDERR] at javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
22:20:59,445 ERROR [STDERR] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
22:20:59,445 ERROR [STDERR] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
22:20:59,445 ERROR [STDERR] at org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96)
22:20:59,445 ERROR [STDERR] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
22:20:59,445 ERROR [STDERR] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
22:20:59,445 ERROR [STDERR] at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:230)
22:20:59,445 ERROR [STDERR] at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:175)
22:20:59,445 ERROR [STDERR] at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:179)
22:20:59,445 ERROR [STDERR] at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:84)
22:20:59,445 ERROR [STDERR] at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
22:20:59,445 ERROR [STDERR] at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
22:20:59,445 ERROR [STDERR] at org.jboss.web.tomcat.service.jca.CachedConnectionValve.invoke(CachedConnectionValve.java:157)
22:20:59,445 ERROR [STDERR] at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
22:20:59,445 ERROR [STDERR] at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:262)
22:20:59,445 ERROR [STDERR] at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:844)
22:20:59,445 ERROR [STDERR] at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:583)
22:20:59,445 ERROR [STDERR] at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:446)
22:20:59,445 ERROR [STDERR] at java.lang.Thread.run(Thread.java:619)
22:20:59,445 ERROR [STDERR] java.lang.IllegalArgumentException: Could not parse knowledge.
22:20:59,445 ERROR [STDERR] at com.expertsystem.DroolsExecution.loadRules(DroolsExecution.java:49)
22:20:59,445 ERROR [STDERR] at com.create.TestCase.run(TestCase.java:52)
22:20:59,445 ERROR [STDERR] at org.apache.jsp.index_jsp._jspService(index_jsp.java:74)
22:20:59,445 ERROR [STDERR] at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
22:20:59,445 ERROR [STDERR] at javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
22:20:59,445 ERROR [STDERR] at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:373)
22:20:59,445 ERROR [STDERR] at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:336)
22:20:59,445 ERROR [STDERR] at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:265)
22:20:59,445 ERROR [STDERR] at javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
22:20:59,445 ERROR [STDERR] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
22:20:59,445 ERROR [STDERR] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
22:20:59,445 ERROR [STDERR] at org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96)
22:20:59,445 ERROR [STDERR] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
22:20:59,445 ERROR [STDERR] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
22:20:59,445 ERROR [STDERR] at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:230)
22:20:59,445 ERROR [STDERR] at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:175)
22:20:59,445 ERROR [STDERR] at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:179)
22:20:59,445 ERROR [STDERR] at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:84)
22:20:59,445 ERROR [STDERR] at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
22:20:59,445 ERROR [STDERR] at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
22:20:59,445 ERROR [STDERR] at org.jboss.web.tomcat.service.jca.CachedConnectionValve.invoke(CachedConnectionValve.java:157)
22:20:59,445 ERROR [STDERR] at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
22:20:59,445 ERROR [STDERR] at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:262)
22:20:59,445 ERROR [STDERR] at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:844)
22:20:59,445 ERROR [STDERR] at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:583)
22:20:59,445 ERROR [STDERR] at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:446)
22:20:59,445 ERROR [STDERR] at java.lang.Thread.run(Thread.java:619)
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13 years, 3 months
[JBoss JIRA] Created: (JBRULES-1829) Nested From Tag Not Supported in Drools
by Nagarajan Shanmugam (JIRA)
Nested From Tag Not Supported in Drools
---------------------------------------
Key: JBRULES-1829
URL: https://jira.jboss.org/jira/browse/JBRULES-1829
Project: JBoss Drools
Issue Type: Bug
Security Level: Public (Everyone can see)
Components: drools-compiler
Affects Versions: 5.0.0.M2
Environment: Windows XP, Eclipse 3.3.
Reporter: Nagarajan Shanmugam
Assignee: Mark Proctor
HI i have Created one rule file that have two From tag. Using XmlDumper I create Xml rule file. When i try to parse that Xml rule file its throwing Error. And also the parsed Xml files also Wrong.
Exception in thread "main" org.drools.compiler.DroolsParserException: org.xml.sax.SAXParseException: <from> may not be nested
at com.drools.service.ConvertDrlToXml.main(ConvertDrlToXml.java:47)
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13 years, 3 months
[JBoss JIRA] Created: (JBRULES-1009) Can't execute rules twice with a second classloader
by aaron dixon (JIRA)
Can't execute rules twice with a second classloader
---------------------------------------------------
Key: JBRULES-1009
URL: http://jira.jboss.com/jira/browse/JBRULES-1009
Project: JBoss Rules
Issue Type: Bug
Security Level: Public (Everyone can see)
Components: Reteoo
Affects Versions: 4.0.0.MR3
Reporter: aaron dixon
Assigned To: Mark Proctor
Priority: Minor
Attachments: drools-test.zip
I am trying to sequentially perform two rules executions using two
different classloaders in the same VM. I create completely new state
for each execution, yet I still fail on the second execution (the first execution succeeds). I
believe this has to do with some internal static cached state that
JBossRules is maintaining. An integration test is attached as an archived Eclipse project (zip).
Exception thrown:
Exception in thread "main" java.lang.ClassCastException: test.drools.classloader.FooShadowProxy
at org.drools.base.test.drools.classloader.Foo$getName.getValue(Unknown Source)
at org.drools.base.ClassFieldExtractor.getValue(ClassFieldExtractor.java:94)
at org.drools.base.evaluators.StringFactory$StringEqualEvaluator.evaluate(StringFactory.java:85)
at org.drools.rule.LiteralRestriction.isAllowed(LiteralRestriction.java:61)
at org.drools.rule.LiteralConstraint.isAllowed(LiteralConstraint.java:82)
at org.drools.reteoo.AlphaNode.assertObject(AlphaNode.java:121)
at org.drools.reteoo.SingleObjectSinkAdapter.propagateAssertObject(SingleObjectSinkAdapter.java:20)
at org.drools.reteoo.ObjectTypeNode.assertObject(ObjectTypeNode.java:159)
at org.drools.reteoo.Rete.assertObject(Rete.java:175)
at org.drools.reteoo.ReteooRuleBase.assertObject(ReteooRuleBase.java:190)
at org.drools.reteoo.ReteooWorkingMemory.doInsert(ReteooWorkingMemory.java:70)
at org.drools.common.AbstractWorkingMemory.insert(AbstractWorkingMemory.java:772)
at org.drools.common.AbstractWorkingMemory.insert(AbstractWorkingMemory.java:584)
at org.drools.reteoo.ReteooStatelessSession.execute(ReteooStatelessSession.java:63)
at test.drools.classloader.Driver.testRules(Driver.java:49)
at test.drools.classloader.Driver.go(Driver.java:35)
at test.drools.classloader.Driver.main(Driver.java:19)
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13 years, 3 months
[JBoss JIRA] Created: (JBRULES-2031) Enhancements to spreadsheet based testing tool
by Michael Neale (JIRA)
Enhancements to spreadsheet based testing tool
----------------------------------------------
Key: JBRULES-2031
URL: https://jira.jboss.org/jira/browse/JBRULES-2031
Project: JBoss Drools
Issue Type: Feature Request
Security Level: Public (Everyone can see)
Components: drools-testing
Reporter: Michael Neale
Assignee: Michael Neale
Fix For: FUTURE
As mentioned by Ansgar in blog comments: http://blog.athico.com/2009/03/new-testing-tool.html
Hi,
we're using Drools to perform mortgage scoring. For testing, we developed a somewhat similar, but already more sophisticated testing framework. Currently, our test set comprises of roughly 800 test scenarios/test cases.
Similarities:
* also uses spreadsheet tables to define test cases.
* each column resembles a test case
* leftmost column used to name elements of input facts or define expected conditions (see below)
Differences:
* concept of "expected values" not expressed as mere values, but as drools conditions which are expected to hold after rules all under test finished execution. These conditions are automagically converted into a drools query which is run against the working memory after rule execution.
Enhancements:
* conditions support simple text replacement, like a macro preprocessor. Wildcards in drools condition can be replaced by test case-specific text
* allows skipping of certain condition checks on a per-test-case basis
* event logging of the drools working memory embedded into fit output file for failed checks. visibility of log can be toggled using html-embedded javascript. allows for simple copy/paste into "audit view" window in eclipse. This eases debugging rules a lot!
* possibility to define a subset of rules contained in a *.drl file to be tested
Open issues:
* Syntax of initial facts specification is probably a bit cumbersome. We're using a self-brewed language to do this. Already thought of replacing this by MVEL, but not done yet. For us, the current solution works ok.
* Up to now, requires explicit import of all used Java classes. This is rather a limitation of drools - we did not manage to get package imports in *.drl files to work. Could probably be solved.
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13 years, 3 months