Package org.drools.compiler.lang.descr

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

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                        updateTraitDefinition( type,
                                               resolvedType,
                                               false );

                        String target = typeDescr.getTypeName() + TraitFactory.SUFFIX;
                        TypeDeclarationDescr tempDescr = new TypeDeclarationDescr();
                        tempDescr.setNamespace(typeDescr.getNamespace());
                        tempDescr.setFields(typeDescr.getFields());
                        tempDescr.setType(target,
                                          typeDescr.getNamespace());
                        tempDescr.addSuperType(typeDescr.getType());
                        TypeDeclaration tempDeclr = new TypeDeclaration(target);
                        tempDeclr.setKind(TypeDeclaration.Kind.TRAIT);
                        tempDeclr.setTypesafe(type.isTypesafe());
                        tempDeclr.setNovel(true);
                        tempDeclr.setTypeClassName(tempDescr.getType().getFullName());
                        tempDeclr.setResource(type.getResource());

                        ClassDefinition tempDef = new ClassDefinition(target);
                        tempDef.setClassName(tempDescr.getType().getFullName());
                        tempDef.setTraitable(false);
                        for ( FieldDefinition fld : def.getFieldsDefinitions() ) {
                            tempDef.addField(fld);
                        }
                        tempDef.setInterfaces(def.getInterfaces());
                        tempDef.setSuperClass(def.getClassName());
                        tempDef.setDefinedClass(resolvedType);
                        tempDef.setAbstrakt(true);
                        tempDeclr.setTypeClassDef(tempDef);

                        type.setKind(TypeDeclaration.Kind.CLASS);

                        declaredClassBuilder.generateBeanFromDefinition( tempDescr,
                                                                         tempDeclr,
                                                                         pkgRegistry,
                                                                         tempDef );
                        try {
                            Class<?> clazz = pkgRegistry.getTypeResolver().resolveType(tempDescr.getType().getFullName());
                            tempDeclr.setTypeClass(clazz);

                            pkgRegistry.getTraitRegistry().addTrait( tempDef.getClassName().replace( TraitFactory.SUFFIX,
                                                                                                     ""),
                                                                     tempDef );
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    protected ClassDefinition createClassDefinition( AbstractClassTypeDeclarationDescr typeDescr, TypeDeclaration type ) {
        // extracts type, supertype and interfaces
        String fullName = typeDescr.getType().getFullName();

        if ( type.getKind().equals( TypeDeclaration.Kind.CLASS ) ) {
            TypeDeclarationDescr tdescr = (TypeDeclarationDescr) typeDescr;
            if (tdescr.getSuperTypes().size() > 1) {
                kbuilder.addBuilderResult(new TypeDeclarationError( typeDescr, "Declared class " + fullName + "  - has more than one supertype;" ) );
                return null;
            } else if ( tdescr.getSuperTypes().isEmpty() ) {
                tdescr.addSuperType("java.lang.Object");
            }
        }

        AnnotationDescr traitableAnn = typeDescr.getAnnotation(Traitable.class.getSimpleName());
        boolean traitable = traitableAnn != null;
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    public void inheritFields( PackageRegistry pkgRegistry,
                               AbstractClassTypeDeclarationDescr typeDescr,
                               Collection<AbstractClassTypeDeclarationDescr> sortedTypeDescriptors,
                               List<TypeDefinition> unresolvedTypes,
                               Map<String,AbstractClassTypeDeclarationDescr> unprocessableDescrs ) {
        TypeDeclarationDescr tDescr = (TypeDeclarationDescr) typeDescr;
        boolean isNovel = TypeDeclarationUtils.isNovelClass( typeDescr, pkgRegistry );
        boolean inferFields = ! isNovel && typeDescr.getFields().isEmpty();

        for ( QualifiedName qname : tDescr.getSuperTypes() ) {
            //descriptor needs fields inherited from superclass
            if ( mergeInheritedFields(tDescr, unresolvedTypes, unprocessableDescrs, pkgRegistry.getTypeResolver() ) ) {
                /*
                //descriptor also needs metadata from superclass - NO LONGER SINCE DROOLS 6.x
                for ( AbstractClassTypeDeclarationDescr descr : sortedTypeDescriptors ) {
                    // sortedTypeDescriptors are sorted by inheritance order, so we'll always find the superClass (if any) before the subclass
                    if ( qname.equals( descr.getType() ) ) {
                        typeDescr.getAnnotations().putAll( descr.getAnnotations() );
                        break;
                    } else if ( typeDescr.getType().equals( descr.getType() ) ) {
                        break;
                    }
                }
                */
            }
        }

        if ( inferFields ) {
            // not novel, but only an empty declaration was provided.
            // after inheriting the fields from supertypes, now we fill in the locally declared fields
            try {
                Class existingClass = TypeDeclarationUtils.getExistingDeclarationClass( typeDescr, pkgRegistry );
                ClassFieldInspector inspector = new ClassFieldInspector( existingClass );
                for (String name : inspector.getGetterMethods().keySet()) {
                    // classFieldAccessor requires both getter and setter
                    if (inspector.getSetterMethods().containsKey(name)) {
                        if (!inspector.isNonGetter(name) && !"class".equals(name)) {
                            TypeFieldDescr inheritedFlDescr = new TypeFieldDescr(
                                    name,
                                    new PatternDescr(
                                            inspector.getFieldTypes().get(name).getName()));
                            inheritedFlDescr.setInherited(!Modifier.isAbstract( inspector.getGetterMethods().get( name ).getModifiers() ));

                            if (!tDescr.getFields().containsKey(inheritedFlDescr.getFieldName()))
                                tDescr.getFields().put(inheritedFlDescr.getFieldName(),
                                                       inheritedFlDescr);
                        }
                    }
                }
            } catch ( Exception e ) {
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                continue;
            }

            //descriptor needs fields inherited from superclass
            if (typeDescr instanceof TypeDeclarationDescr) {
                TypeDeclarationDescr tDescr = (TypeDeclarationDescr) typeDescr;
                for (QualifiedName qname : tDescr.getSuperTypes()) {
                    //descriptor needs fields inherited from superclass
                    if (mergeInheritedFields(tDescr)) {
                        //descriptor also needs metadata from superclass
                        for (AbstractClassTypeDeclarationDescr descr : sortedTypeDescriptors) {
                            // sortedTypeDescriptors are sorted by inheritance order, so we'll always find the superClass (if any) before the subclass
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        // extracts type, supertype and interfaces
        String fullName = typeDescr.getType().getFullName();

        if (type.getKind().equals(TypeDeclaration.Kind.CLASS)) {
            TypeDeclarationDescr tdescr = (TypeDeclarationDescr) typeDescr;
            if (tdescr.getSuperTypes().size() > 1) {
                this.results.add(new TypeDeclarationError(typeDescr, "Declared class " + fullName + "  - has more than one supertype;"));
                return;
            } else if (tdescr.getSuperTypes().isEmpty()) {
                tdescr.addSuperType("java.lang.Object");
            }
        }

        AnnotationDescr traitableAnn = typeDescr.getAnnotation(Traitable.class.getSimpleName());
        boolean traitable = traitableAnn != null;
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                    if (!Thing.class.isAssignableFrom(resolvedType)) {
                        updateTraitDefinition(type,
                                resolvedType);

                        String target = typeDescr.getTypeName() + TraitFactory.SUFFIX;
                        TypeDeclarationDescr tempDescr = new TypeDeclarationDescr();
                        tempDescr.setNamespace(typeDescr.getNamespace());
                        tempDescr.setFields(typeDescr.getFields());
                        tempDescr.setType(target,
                                typeDescr.getNamespace());
                        tempDescr.addSuperType(typeDescr.getType());
                        TypeDeclaration tempDeclr = new TypeDeclaration(target);
                        tempDeclr.setKind(TypeDeclaration.Kind.TRAIT);
                        tempDeclr.setTypesafe(type.isTypesafe());
                        tempDeclr.setNovel(true);
                        tempDeclr.setTypeClassName(tempDescr.getType().getFullName());
                        tempDeclr.setResource(type.getResource());

                        ClassDefinition tempDef = new ClassDefinition(target);
                        tempDef.setClassName(tempDescr.getType().getFullName());
                        tempDef.setTraitable(false);
                        for (FieldDefinition fld : def.getFieldsDefinitions()) {
                            tempDef.addField(fld);
                        }
                        tempDef.setInterfaces(def.getInterfaces());
                        tempDef.setSuperClass(def.getClassName());
                        tempDef.setDefinedClass(resolvedType);
                        tempDef.setAbstrakt(true);
                        tempDeclr.setTypeClassDef(tempDef);

                        type.setKind(TypeDeclaration.Kind.CLASS);

                        generateDeclaredBean(tempDescr,
                                tempDeclr,
                                pkgRegistry,
                                tempDef);
                        try {
                            Class<?> clazz = pkgRegistry.getTypeResolver().resolveType(tempDescr.getType().getFullName());
                            tempDeclr.setTypeClass(clazz);
                        } catch (ClassNotFoundException cnfe) {
                            this.results.add(new TypeDeclarationError(typeDescr,
                                    "Internal Trait extension Class '" + target +
                                            "' could not be generated correctly'"));
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                continue;
            }

            //descriptor needs fields inherited from superclass
            if ( typeDescr instanceof TypeDeclarationDescr ) {
                TypeDeclarationDescr tDescr = (TypeDeclarationDescr) typeDescr;
                for ( QualifiedName qname : tDescr.getSuperTypes() ) {
                    //descriptor needs fields inherited from superclass
                    if ( mergeInheritedFields( tDescr ) ) {
                        //descriptor also needs metadata from superclass
                        for ( AbstractClassTypeDeclarationDescr descr : sortedTypeDescriptors ) {
                            // sortedTypeDescriptors are sorted by inheritance order, so we'll always find the superClass (if any) before the subclass
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        // extracts type, supertype and interfaces
        String fullName = typeDescr.getType().getFullName();

        if ( type.getKind().equals( TypeDeclaration.Kind.CLASS ) ) {
            TypeDeclarationDescr tdescr = (TypeDeclarationDescr) typeDescr;
            if ( tdescr.getSuperTypes().size() > 1 ) {
                this.results.add( new TypeDeclarationError( typeDescr, "Declared class " + fullName + "  - has more than one supertype;" ) );
                return;
            } else if ( tdescr.getSuperTypes().isEmpty() ) {
                tdescr.addSuperType( "java.lang.Object" );
            }
        }

        boolean traitable = typeDescr.getAnnotation( Traitable.class.getSimpleName() ) != null;
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                    if ( !Thing.class.isAssignableFrom( resolvedType ) ) {
                        updateTraitDefinition( type,
                                               resolvedType );

                        String target = typeDescr.getTypeName() + TraitFactory.SUFFIX;
                        TypeDeclarationDescr tempDescr = new TypeDeclarationDescr();
                        tempDescr.setNamespace( typeDescr.getNamespace() );
                        tempDescr.setFields( typeDescr.getFields() );
                        tempDescr.setType( target,
                                           typeDescr.getNamespace() );
                        tempDescr.addSuperType( typeDescr.getType() );
                        TypeDeclaration tempDeclr = new TypeDeclaration( target );
                        tempDeclr.setKind( TypeDeclaration.Kind.TRAIT );
                        tempDeclr.setTypesafe( type.isTypesafe() );
                        tempDeclr.setNovel( true );
                        tempDeclr.setTypeClassName( tempDescr.getType().getFullName() );
                        tempDeclr.setResource( type.getResource() );

                        ClassDefinition tempDef = new ClassDefinition( target );
                        tempDef.setClassName( tempDescr.getType().getFullName() );
                        tempDef.setTraitable( false );
                        for ( FieldDefinition fld : def.getFieldsDefinitions() ) {
                            tempDef.addField( fld );
                        }
                        tempDef.setInterfaces( def.getInterfaces() );
                        tempDef.setSuperClass( def.getClassName() );
                        tempDef.setDefinedClass( resolvedType );
                        tempDef.setAbstrakt( true );
                        tempDeclr.setTypeClassDef( tempDef );

                        type.setKind( TypeDeclaration.Kind.CLASS );

                        generateDeclaredBean( tempDescr,
                                              tempDeclr,
                                              pkgRegistry,
                                              tempDef );
                        try {
                            Class< ? > clazz = pkgRegistry.getTypeResolver().resolveType( tempDescr.getType().getFullName() );
                            tempDeclr.setTypeClass( clazz );
                        } catch ( ClassNotFoundException cnfe ) {
                            this.results.add( new TypeDeclarationError( typeDescr,
                                                                        "Internal Trait extension Class '" + target +
                                                                                "' could not be generated correctly'" ) );
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                     + "cheese : String \n"
                     + "end";

        DrlParser parser = new DrlParser(LanguageLevelOption.DRL5);
        PackageDescr pkgDescr = parser.parse( null, drl );
        TypeDeclarationDescr bean1Type = pkgDescr.getTypeDeclarations().get( 0 );
        assertNull( bean1Type.getSuperTypeName() );

        TypeDeclarationDescr bean2Type = pkgDescr.getTypeDeclarations().get( 1 );
        assertEquals( "Bean1",
                      bean2Type.getSuperTypeName() );
    }
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Related Classes of org.drools.compiler.lang.descr.TypeDeclarationDescr

  • org.drools.compiler.builder.impl.ClassDefinitionFactory
  • org.drools.compiler.builder.impl.ClassHierarchyManager
  • org.drools.compiler.builder.impl.KnowledgeBuilderTest
  • org.drools.compiler.builder.impl.TypeDeclarationBuilder
  • org.drools.compiler.compiler.DrlParserTest
  • org.drools.compiler.compiler.PackageBuilder
  • org.drools.compiler.compiler.PackageBuilderTest
  • org.drools.compiler.lang.api.impl.TypeDeclarationDescrBuilderImpl
  • org.drools.compiler.lang.RuleParserTest
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