Package org.drools.compiler

Examples of org.drools.compiler.RuleError

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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.getText(),
                                                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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                        implicit = this.createDeclarationObject( context,
                                                                 parts[1],
                                                                 decl.getPattern() );

                    } else {
                        context.getErrors().add( new RuleError( context.getRule(),
                                                                qiRestrictionDescr,
                                                                "",
                                                                "Not possible to directly access the property '" + parts[1] + "' of declaration '" + parts[0] + "' since it is not a pattern" ) );
                        return null;
                    }
                }
            }
           
            if( implicit != null ) {
                final Evaluator evaluator = getEvaluator( context,
                                                          qiRestrictionDescr,
                                                          extractor.getValueType(),
                                                          qiRestrictionDescr.getEvaluator() );
                if ( evaluator == null ) {
                    return null;
                }

                return new VariableRestriction( extractor,
                                                implicit,
                                                evaluator );
            }
        }

        final int lastDot = qiRestrictionDescr.getText().lastIndexOf( '.' );
        final String className = qiRestrictionDescr.getText().substring( 0,
                                                                         lastDot );
        final String fieldName = qiRestrictionDescr.getText().substring( lastDot + 1 );
        try {
            final Class staticClass = context.getDialect().getTypeResolver().resolveType( className );
            field = FieldFactory.getFieldValue( staticClass.getField( fieldName ).get( null ),
                                                extractor.getValueType() );
        } catch ( final ClassNotFoundException e ) {
            // nothing to do, as it is not a class name with static field
        } catch ( final Exception e ) {
            context.getErrors().add( new RuleError( context.getRule(),
                                                    qiRestrictionDescr,
                                                    e,
                                                    "Unable to create a Field value of type  '" + extractor.getValueType() + "' and value '" + qiRestrictionDescr.getText() + "'" ) );
        }
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                extractor = context.getDialect().getClassFieldExtractorCache().getExtractor( ((ClassObjectType) objectType).getClassType(),
                                                                                             fieldName,
                                                                                             classloader );
            } catch ( final RuntimeDroolsException e ) {
                if ( reportError ) {
                    context.getErrors().add( new RuleError( context.getRule(),
                                                            descr,
                                                            e,
                                                            "Unable to create Field Extractor for '" + fieldName + "'" ) );
                }
            }
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                                   final String evaluatorString) {

        final Evaluator evaluator = valueType.getEvaluator( Operator.determineOperator( evaluatorString ) );

        if ( evaluator == null ) {
            context.getErrors().add( new RuleError( context.getRule(),
                                                    descr,
                                                    null,
                                                    "Unable to determine the Evaluator for  '" + valueType + "' and '" + evaluatorString + "'" ) );
        }
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            final Serializable expr = ((MVELDialect) context.getDialect()).compile( (String) predicateDescr.getContent(), analysis, null, null, context );           
           
            predicate.setPredicateExpression( new MVELPredicateExpression( expr,
                                                                           factory ) );
        } catch ( final Exception e ) {
            context.getErrors().add( new RuleError( context.getRule(),
                                                    predicateDescr,
                                                    e,
                                                    "Unable to build expression for 'inline-eval' node '" + predicateDescr.getContent() + "'\n" + e.getMessage() ) );
        }
    }
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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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            factory.setNextFactory( dialect.getStaticMethodImportResolverFactory() );           

            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' '" + 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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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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