Re: [rules-users] Compilation errors with 5.3.0.CR1

Thanks for the hint Wolfgang, here are the results: this == ($constr.getRestrictions () [0]) gives [Error: unexpected end of statement] [Near : {... ($constr.getRestrictions () [0]) ....}] ^ [Line: 1, Column: 33] at org.mvel2.compiler.AbstractParser.nextToken(AbstractParser.java:1146) at org.mvel2.compiler.ExpressionCompiler._compile(ExpressionCompiler.java:128) at org.mvel2.compiler.ExpressionCompiler.compile(ExpressionCompiler.java:62) at org.mvel2.MVEL.analysisCompile(MVEL.java:668) at org.mvel2.MVEL.analysisCompile(MVEL.java:672) at org.drools.rule.builder.PatternBuilder.setInputs(PatternBuilder.java:854) at org.drools.rule.builder.PatternBuilder.build(PatternBuilder.java:595) at org.drools.rule.builder.PatternBuilder.processConstraintsAndBinds(PatternBuilder.java:397) at org.drools.rule.builder.PatternBuilder.build(PatternBuilder.java:309) at org.drools.rule.builder.PatternBuilder.build(PatternBuilder.java:132) at org.drools.rule.builder.GroupElementBuilder.build(GroupElementBuilder.java:65) at org.drools.rule.builder.RuleBuilder.build(RuleBuilder.java:80) at org.drools.compiler.PackageBuilder.addRule(PackageBuilder.java:2241) at org.drools.compiler.PackageBuilder.addPackage(PackageBuilder.java:802) at org.drools.compiler.PackageBuilder.addPackageFromDrl(PackageBuilder.java:388) at org.drools.compiler.PackageBuilder.addKnowledgeResource(PackageBuilder.java:566) at org.drools.builder.impl.KnowledgeBuilderImpl.add(KnowledgeBuilderImpl.java:35) Caused by: java.lang.StringIndexOutOfBoundsException: String index out of range: -1 at java.lang.String.<init>(String.java:207) at org.mvel2.optimizers.AbstractOptimizer.capture(AbstractOptimizer.java:222) at org.mvel2.compiler.PropertyVerifier.analyze(PropertyVerifier.java:123) at org.mvel2.compiler.ExpressionCompiler.verify(ExpressionCompiler.java:377) at org.mvel2.compiler.ExpressionCompiler._compile(ExpressionCompiler.java:273) at org.mvel2.util.ParseTools.subCompileExpression(ParseTools.java:2136) at org.mvel2.ast.Substatement.<init>(Substatement.java:37) at org.mvel2.compiler.AbstractParser.nextToken(AbstractParser.java:1006) ... 46 more I tried also without external brackets, but the result is pretty much the same. On 10/05/2011 02:45 PM, Wolfgang Laun wrote: > Correction: > EmNumberRestriction(this == ($constr.getRestrictions () [0] ),... > > On 5 October 2011 14:44, Wolfgang Laun&lt;wolfgang.laun(a)gmail.com&gt; wrote: >> Write this like so: >> EmNumberRestriction(this == ($constr.getRestrictions[0]),... >> -W >>> part from last line of LHS. Again, it worked well in 5.1.1. >>> >>> On 10/05/2011 12:14 PM, Swindells, Thomas wrote: >>> >>> Why do you need the and in the rule? >>> Have you tried >>> >>> rule "enabled paramId: 1, id: 0" >>> salience 50 >>> when >>> >>> def0: EmParamDefinition(paramName == "p2", listIndex == -1) >>> EmParamValue(paramDefinitionId == def0, requiredValue == 1) >>> $param : EmParamValue(id == 1, enabled == false) >>> not ParentDisabled(id == 1) >>> then >>> $param.setEnabled(true); >>> update($param); >>> end >>> >>> Thomas >>> >>> -----Original Message----- >>> From: rules-users-bounces(a)lists.jboss.org [mailto:rules-users- >>> bounces(a)lists.jboss.org] On Behalf Of Waclaw Borowiec >>> Sent: 05 October 2011 10:55 >>> To: rules-users(a)lists.jboss.org >>> Subject: [rules-users] Compilation errors with 5.3.0.CR1 >>> >>> Hello >>> >>> I'm sending the message once again due to problems with code samples >>> visibility in the previous one. >>> >>> I've got following rule: >>> >>> rule "enabled paramId: 1, id: 0" >>> salience 50 >>> when >>> (def0: EmParamDefinition(paramName == "p2", listIndex == -1) and >>> EmParamValue(paramDefinitionId == def0, requiredValue == 1)) >>> $param : EmParamValue(id == 1, enabled == false) >>> not ParentDisabled(id == 1) >>> then >>> $param.setEnabled(true); >>> update($param); >>> end> >>> >>> It compiles fine under Drools 5.1.1, but after switching to 5.3.0.CR1 I get >>> following exception: >>> >>> [Error: unexpected end of statement] >>> [Near : {... def ....}] >>> ^ >>> [Line: 1, Column: 4] >>> at >>> org.mvel2.compiler.AbstractParser._captureBlock(AbstractParser.java:1470) >>> at >>> org.mvel2.compiler.AbstractParser.captureCodeBlock(AbstractParser.java:14 >>> 46) >>> at org.mvel2.compiler.AbstractParser.nextToken(AbstractParser.java:421) >>> at >>> org.mvel2.compiler.ExpressionCompiler._compile(ExpressionCompiler.java:1 >>> 28) >>> at >>> org.mvel2.compiler.ExpressionCompiler.compile(ExpressionCompiler.java:62 >>> ) >>> at org.mvel2.MVEL.analysisCompile(MVEL.java:668) >>> at org.mvel2.MVEL.analysisCompile(MVEL.java:672) >>> at >>> org.drools.rule.builder.PatternBuilder.setInputs(PatternBuilder.java:854) >>> at org.drools.rule.builder.PatternBuilder.build(PatternBuilder.java:595) >>> at >>> org.drools.rule.builder.PatternBuilder.processConstraintsAndBinds(PatternB >>> uilder.java:397) >>> at org.drools.rule.builder.PatternBuilder.build(PatternBuilder.java:309) >>> at org.drools.rule.builder.PatternBuilder.build(PatternBuilder.java:132) >>> at >>> org.drools.rule.builder.GroupElementBuilder.build(GroupElementBuilder.jav >>> a:65) >>> at org.drools.rule.builder.RuleBuilder.build(RuleBuilder.java:80) >>> at org.drools.compiler.PackageBuilder.addRule(PackageBuilder.java:2241) >>> at >>> org.drools.compiler.PackageBuilder.addPackage(PackageBuilder.java:802) >>> at >>> org.drools.compiler.PackageBuilder.addPackageFromDrl(PackageBuilder.java >>> :388) >>> at >>> org.drools.compiler.PackageBuilder.addKnowledgeResource(PackageBuilder >>> .java:566) >>> at >>> org.drools.builder.impl.KnowledgeBuilderImpl.add(KnowledgeBuilderImpl.ja >>> va:35) >>> at >>> com.proximetry.elmgr.services.DependenciesBean$Expander.addDrl(Depen >>> denciesBean.java:110) >>> >>> >>> It is >>> >>> (def0: EmParamDefinition(paramName == "p2", listIndex == -1) and >>> EmParamValue(paramDefinitionId == def0, requiredValue == 1)) >>> >>> >>> line that causes the problem - the exeption disappears after removing it. >>> What's interesting, when I add '$' sign to binding variable name, and the line >>> looks like: >>> >>> ($def0: EmParamDefinition(paramName == "p2", listIndex == -1) and >>> EmParamValue(paramDefinitionId == $def0, requiredValue == 1)) >>> >>> >>> instead of the exception I get DRL error: >>> >>> [DialectError message='Unable to wire compiled classes, probably related to >>> compilation failures:sun.reflect.generics.reflectiveObjects.WildcardTypeImpl >>> cannot be cast to java.lang.Class'] >>> >>> >>> For completness, this is how I add DRL resources: >>> >>> public void addDrl(Reader rdr) { >>> KnowledgeBuilder kBuilder = >>> KnowledgeBuilderFactory.newKnowledgeBuilder(); >>> >>> kBuilder.add( ResourceFactory.newReaderResource(rdr), >>> ResourceType.DRL); >>> if( kBuilder.hasErrors() ){ >>> for( KnowledgeBuilderError err: kBuilder.getErrors() ){ >>> StackTrace.error(this, err); >>> } >>> throw new IllegalStateException( "DRL errors" ); >>> } >>> knowledgeBase.addKnowledgePackages( >>> kBuilder.getKnowledgePackages() ); >>> } >>> >>> >>> I would be grateful if someone has an idea, why after switching Drools >>> version such problem exists. >>> _______________________________________________ >>> rules-users mailing list >>> rules-users(a)lists.jboss.org >>> https://lists.jboss.org/mailman/listinfo/rules-users >>> >>> ************************************************************************************** >>> This message is confidential and intended only for the addressee. 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