Package org.drools.compiler

Examples of org.drools.compiler.RuleError

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            MVELSalienceExpression salience = new MVELSalienceExpression( expr,
                                                                          factory );

            context.getRule().setSalience( salience );
        } catch ( final Exception e ) {
            context.getErrors().add( new RuleError( context.getRule(),
                                                    context.getRuleDescr(),
                                                    null,
                                                    "Unable to build expression for 'salience' node '" + context.getRuleDescr().getSalience() + "'" ) );
        }
    }
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                                                                     analysis.getBoundIdentifiers() );

            context.getRule().setConsequence( new MVELConsequence( expr,
                                                                   factory ) );
        } catch ( final Exception e ) {
            context.getErrors().add( new RuleError( context.getRule(),
                                                    context.getRuleDescr(),
                                                    null,
                                                    "Unable to build expression for 'consequence': "+e.getMessage()+" '" + context.getRuleDescr().getConsequence() + "'" ) );
        }
    }
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                                                       context );

            dataProvider = new MVELDataProvider( expr,
                                                 factory );
        } catch ( final Exception e ) {
            context.getErrors().add( new RuleError( context.getRule(),
                                                    fromDescr,
                                                    null,
                                                    "Unable to build expression for 'from' node '" + accessor + "'" ) );
            return null;
        }
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                                      Pattern prefixPattern) {

        final PatternDescr patternDescr = (PatternDescr) descr;

        if ( patternDescr.getObjectType() == null || patternDescr.getObjectType().equals( "" ) ) {
            context.getErrors().add( new RuleError( context.getRule(),
                                                    patternDescr,
                                                    null,
                                                    "ObjectType not correctly defined" ) );
            return null;
        }

        ObjectType objectType = null;

        final FactTemplate factTemplate = context.getPkg().getFactTemplate( patternDescr.getObjectType() );

        if ( factTemplate != null ) {
            objectType = new FactTemplateObjectType( factTemplate );
        } else {
            try {
                final Class userProvidedClass = context.getDialect().getTypeResolver().resolveType( patternDescr.getObjectType() );
                objectType = new ClassObjectType( userProvidedClass );
            } catch ( final ClassNotFoundException e ) {
                context.getErrors().add( new RuleError( context.getRule(),
                                                        patternDescr,
                                                        null,
                                                        "Unable to resolve ObjectType '" + patternDescr.getObjectType() + "'" ) );
                return null;
            }
        }

        Pattern pattern;
        if ( patternDescr.getIdentifier() != null && !patternDescr.getIdentifier().equals( "" ) ) {

            if ( context.getDeclarationResolver().isDuplicated( patternDescr.getIdentifier() ) ) {
                // This declaration already  exists, so throw an Exception
                context.getErrors().add( new RuleError( context.getRule(),
                                                        patternDescr,
                                                        null,
                                                        "Duplicate declaration for variable '" + patternDescr.getIdentifier() + "' in the rule '" + context.getRule().getName() + "'" ) );
            }
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                pattern.addConstraint( or );
            } else {
                container.addConstraint( or );
            }
        } else {
            context.getErrors().add( new RuleError( context.getRule(),
                                                    (BaseDescr) constraint,
                                                    null,
                                                    "This is a bug: unable to build constraint descriptor: '" + constraint + "' in rule '" + context.getRule().getName() + "'" ) );
        }
    }
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                               container );

                // after building the predicate, we are done, so return
                return;
            } else {
                context.getErrors().add( new RuleError( context.getRule(),
                                                        fieldConstraintDescr,
                                                        null,
                                                        "Unable to create Field Extractor for '" + fieldName + "' of '"+pattern.getObjectType().toString()+"' in rule '"+context.getRule().getName()+"'" ) );
                return;
            }
        }

        Restriction restriction = createRestriction( context,
                                                     pattern,
                                                     fieldConstraintDescr,
                                                     fieldConstraintDescr.getRestriction(),
                                                     extractor );

        if ( restriction == null ) {
            // error was already logged during restriction creation failure
            return;
        }

        Constraint constraint = null;
        if ( restriction instanceof AbstractCompositeRestriction ) {
            constraint = new MultiRestrictionFieldConstraint( extractor,
                                                              restriction );
        } else if ( restriction instanceof LiteralRestriction ) {
            constraint = new LiteralConstraint( extractor,
                                                (LiteralRestriction) restriction );
        } else if ( restriction instanceof VariableRestriction ) {
            constraint = new VariableConstraint( extractor,
                                                 (VariableRestriction) restriction );
        } else if ( restriction instanceof ReturnValueRestriction ) {
            constraint = new ReturnValueConstraint( extractor,
                                                    (ReturnValueRestriction) restriction );
        } else {
            context.getErrors().add( new RuleError( context.getRule(),
                                                    fieldConstraintDescr,
                                                    null,
                                                    "This is a bug: Unkown restriction type '" + restriction.getClass() + "' for pattern '"+pattern.getObjectType().toString()+"' in rule '"+context.getRule().getName()+"'" ) );
        }
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                                                          pattern,
                                                          extractor,
                                                          fieldConstraintDescr,
                                                          restrictionDescr );
                if( restrictions[index] == null ) {
                    context.getErrors().add( new RuleError( context.getRule(),
                                                            fieldConstraintDescr,
                                                            null,
                                                            "Unable to create restriction '" + restrictionDescr.toString() + "' for field '"+ fieldConstraintDescr.getFieldName() +"' in the rule '" + context.getRule().getName() + "'" ) );
                }
                index++;
            }
        }

        if ( restrictions.length > 1 ) {
            AbstractCompositeRestriction composite = null;
            if ( top.getConnective() == RestrictionConnectiveDescr.AND ) {
                composite = new AndCompositeRestriction( restrictions );
            } else if ( top.getConnective() == RestrictionConnectiveDescr.OR ) {
                composite = new OrCompositeRestriction( restrictions );
            } else {
                context.getErrors().add( new RuleError( context.getRule(),
                                                        fieldConstraintDescr,
                                                        null,
                                                        "This is a bug: Impossible to create a composite restriction for connective: " + top.getConnective()+ "' for field '"+ fieldConstraintDescr.getFieldName() +"' in the rule '" + context.getRule().getName() + "'" ) );
            }

            return composite;
        } else if ( restrictions.length == 1 ) {
            return restrictions[0];
        }
        context.getErrors().add( new RuleError( context.getRule(),
                                                fieldConstraintDescr,
                                                null,
                                                "This is a bug: trying to create a restriction for an empty restriction list for field '"+ fieldConstraintDescr.getFieldName() +"' in the rule '" + context.getRule().getName() + "'" ) );
        return null;
    }
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                       final Pattern pattern,
                       final FieldBindingDescr fieldBindingDescr) {

        if ( context.getDeclarationResolver().isDuplicated( fieldBindingDescr.getIdentifier() ) ) {
            // This declaration already  exists, so throw an Exception
            context.getErrors().add( new RuleError( context.getRule(),
                                                    fieldBindingDescr,
                                                    null,
                                                    "Duplicate declaration for variable '" + fieldBindingDescr.getIdentifier() + "' in the rule '" + context.getRule().getName() + "'" ) );
            return;
        }
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    private VariableRestriction buildRestriction(final RuleBuildContext context,
                                                 final FieldExtractor extractor,
                                                 final FieldConstraintDescr fieldConstraintDescr,
                                                 final VariableRestrictionDescr variableRestrictionDescr) {
        if ( variableRestrictionDescr.getIdentifier() == null || variableRestrictionDescr.getIdentifier().equals( "" ) ) {
            context.getErrors().add( new RuleError( context.getRule(),
                                                    variableRestrictionDescr,
                                                    null,
                                                    "Identifier not defined for binding field '" + fieldConstraintDescr.getFieldName() + "'" ) );
            return null;
        }

        Declaration declaration = context.getDeclarationResolver().getDeclaration( variableRestrictionDescr.getIdentifier() );

        if ( declaration == null ) {
            // trying to create implicit declaration
            final Pattern thisPattern = (Pattern) context.getBuildStack().peek();
            final Declaration implicit = this.createDeclarationObject( context,
                                                                       variableRestrictionDescr.getIdentifier(),
                                                                       thisPattern );
            if ( implicit != null ) {
                declaration = implicit;
            } else {
                context.getErrors().add( new RuleError( context.getRule(),
                                                        variableRestrictionDescr,
                                                        null,
                                                        "Unable to return Declaration for identifier '" + variableRestrictionDescr.getIdentifier() + "'" ) );
                return null;
            }
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        FieldValue field = null;
        try {
            field = FieldFactory.getFieldValue( literalRestrictionDescr.getValue(),
                                                extractor.getValueType() );
        } catch ( final Exception e ) {
            context.getErrors().add( new RuleError( context.getRule(),
                                                    literalRestrictionDescr,
                                                    e,
                                                    "Unable to create a Field value of type  '" + extractor.getValueType() + "' and value '" + literalRestrictionDescr.getText() + "'" ) );
        }
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Related Classes of org.drools.compiler.RuleError

  • org.drools.integrationtests.MiscTest
  • org.drools.rule.builder.dialect.java.JavaConsequenceBuilder
  • org.drools.rule.builder.dialect.java.JavaDialect
  • org.drools.rule.builder.dialect.mvel.MVELConsequenceBuilder
  • org.drools.rule.builder.dialect.mvel.MVELDialect
  • org.drools.rule.builder.dialect.mvel.MVELEvalBuilder
  • org.drools.rule.builder.dialect.mvel.MVELFromBuilder
  • org.drools.rule.builder.dialect.mvel.MVELPredicateBuilder
  • org.drools.rule.builder.dialect.mvel.MVELSalienceBuilder
  • org.drools.rule.builder.PatternBuilder
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