March 2012 - jboss-jira - Jboss List Archives

[JBoss JIRA] Created: (JBRULES-3000) Free form expression <field> != <object>.<method>(...) fails to parse

by Wolfgang Laun (JIRA)

Free form expression <field> != <object>.<method>(...) fails to parse --------------------------------------------------------------------- Key: JBRULES-3000 URL: https://issues.jboss.org/browse/JBRULES-3000 Project: Drools Issue Type: Bug Security Level: Public (Everyone can see) Components: drools-compiler (expert) Affects Versions: 3.0.4 Reporter: Wolfgang Laun Assignee: Mark Proctor According to Drools Introduction 2.1.3.1. Free Form expressions in Constraints (New Parser) "free form" expressions should be possible. However, the rule shown below does not compile and a stack dump is printed, (The legacy form using a return value restriction works correctly.) public abstract class BinOp { private Pin inPin1; private Pin inPin2; private Pin outPin; public BinOp( Pin inPin1, Pin inPin2, Pin outPin ){ this.inPin1 = inPin1; this.inPin2 = inPin2; this.outPin = outPin; } public Pin getInPin1() { return inPin1; } public Pin getInPin2() { return inPin2; } public Pin getOutPin() { return outPin; } protected abstract boolean op( boolean x, boolean y ); public boolean op( Pin x, Pin y ){ return op( x.isValue(), y.isValue() ); } } public class Pin { private boolean value; public Pin(){ } public boolean isValue(){ return value; } public void setValue( boolean value ){ this.value = value; } } rule "gate with two inputs" when $binOp : BinOp( $inPin1 : inPin1, $inPin2 : inPin2, $outPin : outPin ) Pin( this == $inPin1 ) Pin( this == $inPin2 ) Pin( this == $outPin, value != ( $binOp.op( $inPin1, $inPin2 ) ) ) then //... end Error message + stack dump: Exception in thread "main" [Error: Failed to compile: 2 compilation error(s): - (1,5) unable to resolve method using strict-mode: appl.circuit.BinOp.$inPin1() - (1,5) unqualified type in strict mode for: $inPin1] [Near : {... op( $inPin1, $inPin2 ) ....}] ^ [Line: 1, Column: 5] at org.mvel2.compiler.ExpressionCompiler.compile(ExpressionCompiler.java:95) at org.mvel2.MVEL.compileExpression(MVEL.java:829) at org.drools.base.extractors.MVELClassFieldReader.<init>(MVELClassFieldReader.java:64) at org.drools.rule.builder.PatternBuilder.createDeclarationObject(PatternBuilder.java:976) at org.drools.rule.builder.PatternBuilder.createDeclarationObject(PatternBuilder.java:939) at org.drools.rule.builder.PatternBuilder.build(PatternBuilder.java:582) at org.drools.rule.builder.PatternBuilder.build(PatternBuilder.java:242) at org.drools.rule.builder.PatternBuilder.build(PatternBuilder.java:61) at org.drools.rule.builder.GroupElementBuilder.build(GroupElementBuilder.java:65) at org.drools.rule.builder.RuleBuilder.build(RuleBuilder.java:81) at org.drools.compiler.PackageBuilder.addRule(PackageBuilder.java:1546) at org.drools.compiler.PackageBuilder.addPackage(PackageBuilder.java:653) at org.drools.compiler.PackageBuilder.addPackageFromDrl(PackageBuilder.java:295) at org.drools.compiler.PackageBuilder.addKnowledgeResource(PackageBuilder.java:471) at org.drools.builder.impl.KnowledgeBuilderImpl.add(KnowledgeBuilderImpl.java:28) -- This message is automatically generated by JIRA. For more information on JIRA, see: http://www.atlassian.com/software/jira

13 years, 6 months

6
13
0 / 0

[JBoss JIRA] Created: (JBRULES-2969) Drools Expert Guide: collectList and collectSet are not documented

by Leo von Klenze (JIRA)

Drools Expert Guide: collectList and collectSet are not documented ------------------------------------------------------------------ Key: JBRULES-2969 URL: https://issues.jboss.org/browse/JBRULES-2969 Project: Drools Issue Type: Bug Security Level: Public (Everyone can see) Components: drools-docs-expert Affects Versions: 5.1.1.FINAL Reporter: Leo von Klenze Assignee: Mark Proctor The accumulate functions "collectList" and "collectSet" are not documented on http://downloads.jboss.com/drools/docs/5.1.1.34858.FINAL/drools-expert/ht... I found these functions on http://blog.athico.com/2009/03/drools-50-cr1-new-and-noteworthy.html and indees they are working ;-) -- This message is automatically generated by JIRA. For more information on JIRA, see: http://www.atlassian.com/software/jira

13 years, 6 months

6
13
0 / 0

[JBoss JIRA] Created: (JBRULES-2947) Resource change scanner and notifier in drools-server don't start

by Robert Gibbon (JIRA)

Resource change scanner and notifier in drools-server don't start ----------------------------------------------------------------- Key: JBRULES-2947 URL: https://issues.jboss.org/browse/JBRULES-2947 Project: Drools Issue Type: Enhancement Security Level: Public (Everyone can see) Affects Versions: 5.2.0.M1, 5.1.1.FINAL, 5.1.0.FINAL Reporter: Robert Gibbon Assignee: Mark Proctor Please see these offsite links for a detailed explanation of the issue and possible resolution actions: http://drools.46999.n3.nabble.com/Starting-resource-change-scanner-and-no... http://drools.46999.n3.nabble.com/drools-server-resource-change-scanner-n... Basically the execution-server isn't polling Guvnor-server for changes to rule resources...only way to trigger a refresh is to touch the deployment descriptor - which is a dirty hack && takes the service down for a few moments. It would be fantastic to get this implemented in the otherwise excellent execution server 5.2 TIA!! -- This message is automatically generated by JIRA. For more information on JIRA, see: http://www.atlassian.com/software/jira

13 years, 6 months

6
12
0 / 0

[JBoss JIRA] Created: (JBRULES-2941) Drools camel server: distribution should include wars that deploy without modification to JBoss AS 5 and 6

by Geoffrey De Smet (JIRA)

Drools camel server: distribution should include wars that deploy without modification to JBoss AS 5 and 6 ---------------------------------------------------------------------------------------------------------- Key: JBRULES-2941 URL: https://issues.jboss.org/browse/JBRULES-2941 Project: Drools Issue Type: Feature Request Security Level: Public (Everyone can see) Reporter: Geoffrey De Smet Assignee: Geoffrey De Smet Priority: Minor drools-camel-server deploys without modification to tomcat and jetty, but probably not to jboss AS because of a jar to many in WEB-INF/lib test this and do like guvnor/guvnor-distribution assemblies -- This message is automatically generated by JIRA. For more information on JIRA, see: http://www.atlassian.com/software/jira

13 years, 6 months

5
16
0 / 0

[JBoss JIRA] Created: (JBRULES-2943) In consequences, Drools syntax checker does not check if missing + sign in println

by Mary Ellen Bench (JIRA)

In consequences, Drools syntax checker does not check if missing + sign in println ---------------------------------------------------------------------------------- Key: JBRULES-2943 URL: https://issues.jboss.org/browse/JBRULES-2943 Project: Drools Issue Type: Bug Security Level: Public (Everyone can see) Affects Versions: 5.1.1.FINAL Environment: Win XP, Eclipse Reporter: Mary Ellen Bench Assignee: Mark Proctor Priority: Minor In a consequence, adding: System.out.println("Text " $item); The syntax checker marks everything as OK, but when you run you get an error. (Should be) System.out.println("Text " + $item); -- This message is automatically generated by JIRA. For more information on JIRA, see: http://www.atlassian.com/software/jira

13 years, 6 months

9
13
0 / 0

[JBoss JIRA] Created: (JBRULES-3042) KnowledgeAgent.applyChangeSet(notExistingResource) should throw an understandable exception instead of a NullPointerException

by Geoffrey De Smet (JIRA)

KnowledgeAgent.applyChangeSet(notExistingResource) should throw an understandable exception instead of a NullPointerException ----------------------------------------------------------------------------------------------------------------------------- Key: JBRULES-3042 URL: https://issues.jboss.org/browse/JBRULES-3042 Project: Drools Issue Type: Bug Security Level: Public (Everyone can see) Reporter: Geoffrey De Smet Fix For: 5.3.0.M1 Discovered by the guvnor-examples MortgageClientExample The exception is essentially eaten here in KnowledgeAgentImpl: {code} try { changeSet = reader.read( resource.getReader() ); } catch ( Exception e ) { this.listener.exception( new RuntimeException( "Unable to parse ChangeSet", e ) ); } {code} OK, it logs it, but it doesn't throw an exception (might be related to use of the Agent in spring??? where we don't want it to die on a network IO problem?). Instead a NPE occurs later because the changeSet is still null: {code} Exception in thread "main" java.lang.NullPointerException at org.drools.agent.impl.KnowledgeAgentImpl.processChangeSet(KnowledgeAgentImpl.java:223) at org.drools.agent.impl.KnowledgeAgentImpl.applyChangeSet(KnowledgeAgentImpl.java:189) at org.drools.agent.impl.KnowledgeAgentImpl.applyChangeSet(KnowledgeAgentImpl.java:174) at org.drools.guvnor.examples.mortgage.client.MortgageClientExample.readKnowledgeBase(MortgageClientExample.java:81) at org.drools.guvnor.examples.mortgage.client.MortgageClientExample.main(MortgageClientExample.java:39) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:597) at com.intellij.rt.execution.application.AppMain.main(AppMain.java:115) {code} -- This message is automatically generated by JIRA. For more information on JIRA, see: http://www.atlassian.com/software/jira

13 years, 6 months

4
9
0 / 0

[JBoss JIRA] Created: (JBRULES-3057) Misleading error message for missing constructor

by Wolfgang Laun (JIRA)

Misleading error message for missing constructor ------------------------------------------------ Key: JBRULES-3057 URL: https://issues.jboss.org/browse/JBRULES-3057 Project: Drools Issue Type: Bug Security Level: Public (Everyone can see) Components: drools-compiler (expert) Affects Versions: 5.2.0.CR1 Reporter: Wolfgang Laun Assignee: Mark Proctor Fix For: 5.2.0 If an undeclared constructor is called in a consequence, a very strange error message is produced: - error text is "Failed to compileShared" ("Shared" is not used by the app) - The message part meant ot identify the location of the error is misleanding, e.g., Near : {... p3.setName( "Paul" ); ....} with the marker ("^") pointing to "Paul". public static class Person { private String name; public Person(String name){ this.name = name; } public String getField1() { return field1; } public void setName( String name ) { this.name = name; } public String getName() { return name; } } @Test public void testExistsIterativeModifyBug() { String str = ""; str += "package org.simple "; str += "import Person "; str += "rule xxx "; str += "when "; str += "then "; str += " Person = new Person() "; str += "end "; KnowledgeBase kbase = loadKnowledgeBaseFromString( str ); assertFalse( kBuilder.hasErrors() ); StatefulKnowledgeSession ksession = kbase.newStatefulKnowledgeSession(); ksession.fireAllRules(); ksession.dispose(); } -- This message is automatically generated by JIRA. For more information on JIRA, see: http://www.atlassian.com/software/jira

13 years, 6 months

6
12
0 / 0

[JBoss JIRA] Created: (JBRULES-3026) drools-camel-server and guvnor-webapp: Do not use the dependency cxf-bundle-jaxrs because it's an uber jar that disrupts our dependency graph

by Geoffrey De Smet (JIRA)

drools-camel-server and guvnor-webapp: Do not use the dependency cxf-bundle-jaxrs because it's an uber jar that disrupts our dependency graph --------------------------------------------------------------------------------------------------------------------------------------------- Key: JBRULES-3026 URL: https://issues.jboss.org/browse/JBRULES-3026 Project: Drools Issue Type: Bug Security Level: Public (Everyone can see) Affects Versions: 5.2.0.M2 Reporter: Geoffrey De Smet Assignee: Geoffrey De Smet Priority: Critical Fix For: 5.2.0.CR1 cxf-bundle-jaxrs isn't mentioned in here: http://cxf.apache.org/docs/using-cxf-with-maven.html it pulls in a lot we don't need and we try to exclude what we don't need (but fail at it). -- This message is automatically generated by JIRA. For more information on JIRA, see: http://www.atlassian.com/software/jira

13 years, 6 months

4
17
0 / 0

[JBoss JIRA] Created: (JBRULES-3014) Too many error messages (and stack dumps!) due to simple syntax error

by Wolfgang Laun (JIRA)

Too many error messages (and stack dumps!) due to simple syntax error --------------------------------------------------------------------- Key: JBRULES-3014 URL: https://issues.jboss.org/browse/JBRULES-3014 Project: Drools Issue Type: Bug Security Level: Public (Everyone can see) Components: drools-compiler (expert) Affects Versions: 5.2.0.M2 Reporter: Wolfgang Laun Assignee: Mark Proctor Fix For: 5.2.0.CR1 Person( age > ($age * 2) ) ) ### typo - note the redundant ')' This produces nested Empty Stack and Class Cast Exceptions, lots of stack dumps and three error messages: [0,0]: Line 30:0 unexpected exception at input 'rule'. Exception: java.util.EmptyStackException. Stack trace: java.util.EmptyStackException at java.util.Stack.peek(Stack.java:85) at java.util.Stack.pop(Stack.java:67) at org.drools.lang.ParserHelper.popParaphrases(ParserHelper.java:409) at org.drools.lang.ParserHelper.end(ParserHelper.java:723) at org.drools.lang.DRLParser.rule(DRLParser.java:915) at org.drools.lang.DRLParser.statement(DRLParser.java:248) at org.drools.lang.DRLParser.compilationUnit(DRLParser.java:143) at org.drools.compiler.DrlParser.compile(DrlParser.java:225) at org.drools.compiler.DrlParser.parse(DrlParser.java:136) at org.drools.compiler.DrlParser.parse(DrlParser.java:141) at org.drools.compiler.PackageBuilder.addPackageFromDrl(PackageBuilder.java:307) at org.drools.compiler.PackageBuilder.addKnowledgeResource(PackageBuilder.java:486) at org.drools.builder.impl.KnowledgeBuilderImpl.add(KnowledgeBuilderImpl.java:28) at express.Main.setup(Main.java:48) at express.Main.main(Main.java:92) [0,0]: Line 31:8 unexpected exception at input '"mvel"'. Exception: java.lang.ClassCastException: org.drools.lang.api.CEDescrBuilderImpl cannot be cast to org.drools.lang.api.AttributeSupportBuilder. Stack trace: java.lang.ClassCastException: org.drools.lang.api.CEDescrBuilderImpl cannot be cast to org.drools.lang.api.AttributeSupportBuilder at org.drools.lang.ParserHelper.start(ParserHelper.java:667) at org.drools.lang.DRLParser.stringAttribute(DRLParser.java:1294) at org.drools.lang.DRLParser.attribute(DRLParser.java:1073) at org.drools.lang.DRLParser.statement(DRLParser.java:257) at org.drools.lang.DRLParser.compilationUnit(DRLParser.java:143) at org.drools.compiler.DrlParser.compile(DrlParser.java:225) at org.drools.compiler.DrlParser.parse(DrlParser.java:136) at org.drools.compiler.DrlParser.parse(DrlParser.java:141) at org.drools.compiler.PackageBuilder.addPackageFromDrl(PackageBuilder.java:307) at org.drools.compiler.PackageBuilder.addKnowledgeResource(PackageBuilder.java:486) at org.drools.builder.impl.KnowledgeBuilderImpl.add(KnowledgeBuilderImpl.java:28) at express.Main.setup(Main.java:48) at express.Main.main(Main.java:92) [31,8]: [ERR 107] Line 31:8 mismatched input '"mvel"' expecting one of the following tokens: '[package, import, global, declare, function, rule, query]'. [0,0]: Line 39:0 unexpected exception at input 'rule'. Exception: java.util.EmptyStackException. Stack trace: java.util.EmptyStackException at java.util.Stack.peek(Stack.java:85) at java.util.Stack.pop(Stack.java:67) at org.drools.lang.ParserHelper.popParaphrases(ParserHelper.java:409) at org.drools.lang.ParserHelper.end(ParserHelper.java:723) at org.drools.lang.DRLParser.rule(DRLParser.java:915) at org.drools.lang.DRLParser.statement(DRLParser.java:248) at org.drools.lang.DRLParser.compilationUnit(DRLParser.java:143) at org.drools.compiler.DrlParser.compile(DrlParser.java:225) at org.drools.compiler.DrlParser.parse(DrlParser.java:136) at org.drools.compiler.DrlParser.parse(DrlParser.java:141) at org.drools.compiler.PackageBuilder.addPackageFromDrl(PackageBuilder.java:307) at org.drools.compiler.PackageBuilder.addKnowledgeResource(PackageBuilder.java:486) at org.drools.builder.impl.KnowledgeBuilderImpl.add(KnowledgeBuilderImpl.java:28) at express.Main.setup(Main.java:48) at express.Main.main(Main.java:92) -- This message is automatically generated by JIRA. For more information on JIRA, see: http://www.atlassian.com/software/jira

13 years, 6 months

6
12
0 / 0

[JBoss JIRA] Created: (JBRULES-3011) Incorrect salience expression => CCE at runtime

by Wolfgang Laun (JIRA)

Incorrect salience expression => CCE at runtime ----------------------------------------------- Key: JBRULES-3011 URL: https://issues.jboss.org/browse/JBRULES-3011 Project: Drools Issue Type: Bug Security Level: Public (Everyone can see) Components: drools-compiler (expert) Affects Versions: 5.2.0.M2 Reporter: Wolfgang Laun Assignee: Mark Proctor Fix For: 5.2.0.CR1 function int FSAL(){ return 100; } rule insFirst salience ( FSAL ) ## Oops, forgot the parens... when then end No compile-time error. At runtime we get: Exception in thread "main" org.drools.RuntimeDroolsException: Unexpected exception executing action org.drools.reteoo.ReteooWorkingMemory$WorkingMemoryReteAssertAction@354749 at org.drools.common.AbstractWorkingMemory.executeQueuedActions(AbstractWorkingMemory.java:996) at org.drools.common.AbstractWorkingMemory.fireAllRules(AbstractWorkingMemory.java:730) at org.drools.common.AbstractWorkingMemory.fireAllRules(AbstractWorkingMemory.java:699) at org.drools.impl.StatefulKnowledgeSessionImpl.fireAllRules(StatefulKnowledgeSessionImpl.java:218) at express.Main.execute(Main.java:71) at express.Main.main(Main.java:93) Caused by: java.lang.ClassCastException: org.mvel2.util.MethodStub cannot be cast to java.lang.Number at org.drools.base.mvel.MVELSalienceExpression.getValue(MVELSalienceExpression.java:86) at org.drools.reteoo.RuleTerminalNode.assertLeftTuple(RuleTerminalNode.java:215) at org.drools.reteoo.SingleLeftTupleSinkAdapter.doPropagateAssertLeftTuple(SingleLeftTupleSinkAdapter.java:189) at org.drools.reteoo.SingleLeftTupleSinkAdapter.createAndPropagateAssertLeftTuple(SingleLeftTupleSinkAdapter.java:138) at org.drools.reteoo.LeftInputAdapterNode.assertObject(LeftInputAdapterNode.java:141) at org.drools.reteoo.SingleObjectSinkAdapter.propagateAssertObject(SingleObjectSinkAdapter.java:59) at org.drools.reteoo.ObjectTypeNode.assertObject(ObjectTypeNode.java:185) at org.drools.reteoo.EntryPointNode.assertObject(EntryPointNode.java:143) at org.drools.reteoo.Rete.assertObject(Rete.java:107) at org.drools.reteoo.ReteooRuleBase.assertObject(ReteooRuleBase.java:260) at org.drools.reteoo.ReteooWorkingMemory$WorkingMemoryReteAssertAction.execute(ReteooWorkingMemory.java:343) at org.drools.common.AbstractWorkingMemory.executeQueuedActions(AbstractWorkingMemory.java:994) ... 5 more -- This message is automatically generated by JIRA. For more information on JIRA, see: http://www.atlassian.com/software/jira

13 years, 6 months

5
12
0 / 0

2026

2025

2024

2023

2022

2021

2020

2019

2018

2017

2016

2015

2014

2013

2012

2011

2010

2009

2008

2007

2006

jboss-jira March 2012