private PropertyMetadata makePropertyMetadata()

in kit/src/main/java/com/oracle/javafx/scenebuilder/kit/metadata/MetadataIntrospector.java [181:307]
114 lines of code
20 McCabe index (conditional complexity)

    private PropertyMetadata makePropertyMetadata(PropertyName name, 
            PropertyDescriptor propertyDescriptor, Object sample) {
        PropertyMetadata result;
        
        if (propertyDescriptor.getPropertyType() == null) {
            result = null;
        } else if (propertyDescriptor.getReadMethod() == null) {
            result = null;
        } else {
            final Class<?> propertyType = canonizeClass(propertyDescriptor.getPropertyType());
            final boolean readWrite = propertyDescriptor.getWriteMethod() != null;
            final InspectorPath inspectorPath 
                    = new InspectorPath(CUSTOM_SECTION, CUSTOM_SUB_SECTION, counter++);
            
            if (propertyType.isArray()) {
                result = null;
            } else if (propertyType.isEnum()) {
                final Object fallback = propertyType.getEnumConstants()[0];
                result = new EnumerationPropertyMetadata(
                        name,
                        propertyType,
                        readWrite,
                        (Enum<?>)getDefaultValue(sample, propertyDescriptor.getReadMethod(), fallback),
                        inspectorPath);
            } else if (propertyType == Boolean.class) {
                result = new BooleanPropertyMetadata(
                        name,
                        readWrite,
                        (Boolean)getDefaultValue(sample, propertyDescriptor.getReadMethod(), false),
                        inspectorPath);
            } else if (propertyType == Integer.class) {
                result = new IntegerPropertyMetadata(
                        name,
                        readWrite,
                        (Integer)getDefaultValue(sample, propertyDescriptor.getReadMethod(), 0),
                        inspectorPath);
            } else if (propertyType == Double.class) {
                result = new DoublePropertyMetadata(
                        name,
                        DoubleKind.COORDINATE,
                        readWrite,
                        (Double)getDefaultValue(sample, propertyDescriptor.getReadMethod(), 0.0),
                        inspectorPath);
            } else if (propertyType == String.class) {
                result = new StringPropertyMetadata(
                        name,
                        readWrite,
                        (String)getDefaultValue(sample, propertyDescriptor.getReadMethod(), null),
                        inspectorPath);
            } else if (propertyType == javafx.scene.paint.Color.class) {
                result = new ColorPropertyMetadata(
                        name,
                        readWrite,
                        (Color)getDefaultValue(sample, propertyDescriptor.getReadMethod(), null),
                        inspectorPath);
            } else if (propertyType == javafx.scene.paint.Paint.class) {
                result = new PaintPropertyMetadata(
                        name,
                        readWrite,
                        (Paint) getDefaultValue(sample, propertyDescriptor.getReadMethod(), null),
                        inspectorPath);
            } else if (propertyType == javafx.scene.text.Font.class) {
                result = new FontPropertyMetadata(
                        name,
                        readWrite,
                        (Font) getDefaultValue(sample, propertyDescriptor.getReadMethod(), null),
                        inspectorPath);
            } else if (propertyType == javafx.scene.image.Image.class) {
                result = new ImagePropertyMetadata(
                        name,
                        readWrite,
                        null,
                        inspectorPath);
            } else if (propertyType == javafx.util.Duration.class) {
                Duration defaultValue = (Duration)getDefaultValue(sample, propertyDescriptor.getReadMethod(), null);
                result = new DurationPropertyMetadata(
                        name,
                        readWrite,
                        defaultValue == null? null : new SBDuration(defaultValue),
                        inspectorPath);

            } else if (propertyType == javafx.event.EventHandler.class) {
                result = new EventHandlerPropertyMetadata(
                        name,
                        readWrite,
                        null,
                        inspectorPath);
//            The following doesn't work because FXMLLoader is only prepared to load 'function' types
//            of type EventHandler
//
//            } else if (propertyType == java.util.function.Function.class) {
//                result = new FunctionalInterfacePropertyMetadata(
//                        name,
//                        readWrite,
//                        null,
//                        inspectorPath, FUNCTION);
            } else if (propertyType == javafx.collections.ObservableList.class) {
                String propertyName = name.getName();
                String methodName = "get" + propertyName.substring(0, 1).toUpperCase(Locale.ROOT) + propertyName.substring(1);
                result = null;
                try {
                    Method method = sample.getClass().getMethod(methodName);
                    Type type = method.getGenericReturnType();
                    if (type instanceof ParameterizedType) {
                        ParameterizedType parameterizedType = (ParameterizedType) type;
                        Type genericType = parameterizedType.getActualTypeArguments()[0];
                        if (genericType instanceof Class) {
                            Class genericClass = (Class) parameterizedType.getActualTypeArguments()[0];
                            if (genericClass.equals(java.lang.String.class)) {
                                result = new StringListPropertyMetadata(
                                        name,
                                        readWrite,
                                        Collections.emptyList(),
                                        inspectorPath);
                            }
                        }
                    }
                } catch (NoSuchMethodException e) {
                    e.printStackTrace();
                }
            } else {
                result = null;
            }
        }
        
        return result;
    }