Package org.drools.compiler.lang.descr

Examples of org.drools.compiler.lang.descr.AnnotationDescr

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                }
                return false;
            }
        }

        AnnotationDescr annotationDescr = typeDescr.getAnnotation(TypeDeclaration.ATTR_TIMESTAMP);
        String timestamp = (annotationDescr != null) ? annotationDescr.getSingleValue() : null;
        if (timestamp != null) {
            type.setTimestampAttribute(timestamp);
            InternalKnowledgePackage pkg = pkgRegistry.getPackage();

            MVELDialect dialect = (MVELDialect) pkgRegistry.getDialectCompiletimeRegistry().getDialect("mvel");
            PackageBuildContext context = new PackageBuildContext();
            context.init(kbuilder, pkg, typeDescr, pkgRegistry.getDialectCompiletimeRegistry(), dialect, null);
            if (!type.isTypesafe()) {
                context.setTypesafe(false);
            }

            MVELAnalysisResult results = (MVELAnalysisResult)
                    context.getDialect().analyzeExpression(context,
                                                           typeDescr,
                                                           timestamp,
                                                           new BoundIdentifiers(Collections.EMPTY_MAP,
                                                                                Collections.EMPTY_MAP,
                                                                                Collections.EMPTY_MAP,
                                                                                type.getTypeClass()));

            if (results != null) {
                InternalReadAccessor reader = pkg.getClassFieldAccessorStore().getMVELReader(ClassUtils.getPackage(type.getTypeClass()),
                                                                                             type.getTypeClass().getName(),
                                                                                             timestamp,
                                                                                             type.isTypesafe(),
                                                                                             results.getReturnType());

                MVELDialectRuntimeData data = (MVELDialectRuntimeData) pkg.getDialectRuntimeRegistry().getDialectData("mvel");
                data.addCompileable((MVELCompileable) reader);
                ((MVELCompileable) reader).compile(data);
                type.setTimestampExtractor(reader);
            } else {
                kbuilder.addBuilderResult(new TypeDeclarationError(typeDescr,
                                                                   "Error creating field accessors for timestamp field '" + timestamp +
                                                                   "' for type '" +
                                                                   type.getTypeName() +
                                                                   "'"));
            }
        }

        annotationDescr = typeDescr.getAnnotation(TypeDeclaration.ATTR_DURATION);
        String duration = (annotationDescr != null) ? annotationDescr.getSingleValue() : null;
        if (duration != null) {
            type.setDurationAttribute(duration);
            InternalKnowledgePackage pkg = pkgRegistry.getPackage();

            MVELDialect dialect = (MVELDialect) pkgRegistry.getDialectCompiletimeRegistry().getDialect("mvel");
            PackageBuildContext context = new PackageBuildContext();
            context.init(kbuilder, pkg, typeDescr, pkgRegistry.getDialectCompiletimeRegistry(), dialect, null);
            if (!type.isTypesafe()) {
                context.setTypesafe(false);
            }

            MVELAnalysisResult results = (MVELAnalysisResult)
                    context.getDialect().analyzeExpression(context,
                                                           typeDescr,
                                                           duration,
                                                           new BoundIdentifiers(Collections.EMPTY_MAP,
                                                                                Collections.EMPTY_MAP,
                                                                                Collections.EMPTY_MAP,
                                                                                type.getTypeClass()));

            if (results != null) {
                InternalReadAccessor reader = pkg.getClassFieldAccessorStore().getMVELReader(ClassUtils.getPackage(type.getTypeClass()),
                                                                                             type.getTypeClass().getName(),
                                                                                             duration,
                                                                                             type.isTypesafe(),
                                                                                             results.getReturnType());

                MVELDialectRuntimeData data = (MVELDialectRuntimeData) pkg.getDialectRuntimeRegistry().getDialectData("mvel");
                data.addCompileable((MVELCompileable) reader);
                ((MVELCompileable) reader).compile(data);
                type.setDurationExtractor(reader);
            } else {
                kbuilder.addBuilderResult(new TypeDeclarationError(typeDescr,
                                                                   "Error processing @duration for TypeDeclaration '" + type.getFullName() +
                                                                   "': cannot access the field '" + duration + "'"));
            }
        }

        annotationDescr = typeDescr.getAnnotation(TypeDeclaration.ATTR_EXPIRE);
        String expiration = (annotationDescr != null) ? annotationDescr.getSingleValue() : null;
        if (expiration != null) {
            if (timeParser == null) {
                timeParser = new TimeIntervalParser();
            }
            type.setExpirationOffset(timeParser.parse(expiration)[0]);
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            //identify superclass type and namespace
            if (typeDescr instanceof TypeDeclarationDescr) {
                fillSuperType((TypeDeclarationDescr) typeDescr,
                              packageDescr);
                AnnotationDescr kind = typeDescr.getAnnotation( TypeDeclaration.Kind.ID );
                if ( typeClass != null && kind != null && kind.hasValue() && TypeDeclaration.Kind.TRAIT == TypeDeclaration.Kind.parseKind( kind.getSingleValue() ) ) {
                    fillStaticInterfaces( (TypeDeclarationDescr) typeDescr, typeClass );
                }
            }

            //identify field types as well
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                }
            }
        }

        // is it a regular fact or an event?
        AnnotationDescr annotationDescr = getSingleAnnotation(typeDescr, TypeDeclaration.Role.ID);
        String role = (annotationDescr != null) ? annotationDescr.getSingleValue() : null;
        if (role != null) {
            type.setRole(TypeDeclaration.Role.parseRole(role));
        } else if (parent != null) {
            // FIXME : Should this be here, since Drools 6 does not namely support annotation inheritance?
            type.setRole(parent.getRole());
        }

        annotationDescr = getSingleAnnotation(typeDescr, TypeDeclaration.ATTR_TYPESAFE);
        String typesafe = (annotationDescr != null) ? annotationDescr.getSingleValue() : null;
        if (typesafe != null) {
            type.setTypesafe(Boolean.parseBoolean(typesafe));
        } else if (parent != null && isSet(parent.getSetMask(), TypeDeclaration.TYPESAFE_BIT)) {
            // FIXME : Should this be here, since Drools 6 does not namely support annotation inheritance?
            type.setTypesafe(parent.isTypesafe());
        }

        // is it a pojo or a template?
        annotationDescr = getSingleAnnotation(typeDescr, TypeDeclaration.Format.ID);
        String format = (annotationDescr != null) ? annotationDescr.getSingleValue() : null;
        if (format != null) {
            type.setFormat(TypeDeclaration.Format.parseFormat(format));
        }

        // is it a class, a trait or an enum?
        annotationDescr = getSingleAnnotation(typeDescr, TypeDeclaration.Kind.ID);
        String kind = (annotationDescr != null) ? annotationDescr.getSingleValue() : null;
        if (kind != null) {
            type.setKind(TypeDeclaration.Kind.parseKind(kind));
        }
        if (typeDescr instanceof EnumDeclarationDescr) {
            type.setKind(TypeDeclaration.Kind.ENUM);
        }

        annotationDescr = getSingleAnnotation(typeDescr, TypeDeclaration.ATTR_CLASS);
        String className = (annotationDescr != null) ? annotationDescr.getSingleValue() : null;
        if (isEmpty(className)) {
            className = type.getTypeName();
        }

        try {
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        }
    }


    private AnnotationDescr getSingleAnnotation(AbstractClassTypeDeclarationDescr typeDescr, String name) {
        AnnotationDescr annotationDescr = typeDescr.getAnnotation(name);
        if (annotationDescr != null && annotationDescr.isDuplicated()) {
            kbuilder.addBuilderResult(new TypeDeclarationError(typeDescr,
                                                               "Duplicated annotation '" + name +
                                                               "' for type declaration of '" +
                                                               typeDescr.getTypeName() + "'"));
            return null;
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            } else if (tdescr.getSuperTypes().isEmpty()) {
                tdescr.addSuperType("java.lang.Object");
            }
        }

        AnnotationDescr traitableAnn = typeDescr.getAnnotation(Traitable.class.getSimpleName());
        boolean traitable = traitableAnn != null;

        String[] fullSuperTypes = new String[typeDescr.getSuperTypes().size() + 1];
        int j = 0;
        for (QualifiedName qname : typeDescr.getSuperTypes()) {
            fullSuperTypes[j++] = qname.getFullName();
        }
        fullSuperTypes[j] = Thing.class.getName();

        List<String> interfaceList = new ArrayList<String>();
        interfaceList.add(traitable ? Externalizable.class.getName() : Serializable.class.getName());
        if (traitable) {
            interfaceList.add(TraitableBean.class.getName());
        }
        String[] interfaces = interfaceList.toArray(new String[interfaceList.size()]);

        // prepares a class definition
        ClassDefinition def;
        switch (type.getKind()) {
            case TRAIT:
                def = new ClassDefinition(fullName,
                                          "java.lang.Object",
                                          fullSuperTypes);
                break;
            case ENUM:
                def = new EnumClassDefinition(fullName,
                                              fullSuperTypes[0],
                                              null);
                break;
            case CLASS:
            default:
                def = new ClassDefinition(fullName,
                                          fullSuperTypes[0],
                                          interfaces);
                def.setTraitable(traitable, traitableAnn != null &&
                                            traitableAnn.getValue("logical") != null &&
                                            Boolean.valueOf(traitableAnn.getValue("logical")));
        }

        for (String annotationName : typeDescr.getAnnotationNames()) {
            Class annotation = resolveAnnotation(annotationName,
                                                 pkgRegistry.getTypeResolver());
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    }

    protected void processMetadataAnnotations(Pattern pattern, Map<String, AnnotationDescr> annotationMap) {
        for ( String key : annotationMap.keySet() ) {
            if ( ! Pattern.ATTR_LISTENED_PROPS.equals( key ) ) {
                AnnotationDescr ann = annotationMap.get( key );
                AnnotationDefinition def = new AnnotationDefinition( key );
                for ( String propKey : ann.getValues().keySet() ) {
                    def.getValues().put( propKey, new AnnotationDefinition.AnnotationPropertyVal( propKey, null, ann.getValue( propKey ), null ) );
                }
                pattern.getAnnotations().put( key, def );
            }
        }       
    }
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    protected void processListenedPropertiesAnnotation(RuleBuildContext context,
                                                     PatternDescr patternDescr,
                                                     Pattern pattern,
                                                     Map<String, AnnotationDescr> annotationMap) {
        AnnotationDescr listenedProps = annotationMap.get(Pattern.ATTR_LISTENED_PROPS);
        if (listenedProps != null) {
            List<String> settableProperties = getSettableProperties(context, patternDescr, pattern);

            List<String> listenedProperties = new ArrayList<String>();
            for (String propertyName : listenedProps.getValue().toString().split(",")) {
                propertyName = propertyName.trim();
                if (propertyName.equals("*") || propertyName.equals("!*")) {
                    if (listenedProperties.contains("*") || listenedProperties.contains("!*")) {
                        context.addError( new DescrBuildError( context.getParentDescr(),
                                patternDescr,
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        // multiple values with no keys are parsed as a single value
        final String text = "rule X @ann1( val1, val2 ) @ann2( \"val1\", \"val2\" ) when then end";
        RuleDescr rule = (RuleDescr) parse( "rule",
                                             text );

        AnnotationDescr ann = rule.getAnnotation( "ann1" );
        assertNotNull( ann );
        assertEquals( "val1, val2",
                      ann.getValue() );

        ann = rule.getAnnotation( "ann2" );
        assertNotNull( ann );
        assertEquals( "\"val1\", \"val2\"",
                      ann.getValue() );
    }
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        buildSalience( context );

        buildEnabled( context );
       
        AnnotationDescr ann = ruleDescr.getAnnotation( "activationListener" );
        if ( ann != null && !StringUtils.isEmpty( (String) ann.getValue() ) ) {
            rule.setActivationListener( MVEL.evalToString( (String) ann.getValue() ) );
        }

        //        buildDuration( context );
    }
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    }

    protected void processMetadataAnnotations(Pattern pattern, Map<String, AnnotationDescr> annotationMap) {
        for ( String key : annotationMap.keySet() ) {
            if ( ! Pattern.ATTR_LISTENED_PROPS.equals( key ) ) {
                AnnotationDescr ann = annotationMap.get( key );
                AnnotationDefinition def = new AnnotationDefinition( key );
                for ( String propKey : ann.getValues().keySet() ) {
                    def.getValues().put( propKey, new AnnotationDefinition.AnnotationPropertyVal( propKey, null, ann.getValue( propKey ), null ) );
                }
                pattern.getAnnotations().put( key, def );
            }
        }       
    }
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Related Classes of org.drools.compiler.lang.descr.AnnotationDescr

  • org.drools.compiler.builder.impl.ClassDefinitionFactory
  • org.drools.compiler.builder.impl.ClassHierarchyManager
  • org.drools.compiler.builder.impl.TypeDeclarationBuilder
  • org.drools.compiler.builder.impl.TypeDeclarationConfigurator
  • org.drools.compiler.builder.impl.TypeDeclarationFactory
  • org.drools.compiler.builder.impl.TypeDeclarationNameResolver
  • org.drools.compiler.compiler.PackageBuilder
  • org.drools.compiler.lang.api.impl.AnnotationDescrBuilderImpl
  • org.drools.compiler.lang.DRL5Expressions
  • org.drools.compiler.lang.DRL6Expressions
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