Examples with NoValue org.polymap.core.style.model.feature.NoValue used on opensource projects

Example 1 with NoValue

use of org.polymap.core.style.model.feature.NoValue in project polymap4-core by Polymap4.

the class StyleCompositeSerializer method handle.

protected <V> Iterable<RuleModifier<V, S>> handle(Property<StylePropertyValue<V>> prop) {
    StylePropertyValue<V> styleProp = prop.get();
    // no value -> nothing to modify
    if (styleProp == null || styleProp instanceof NoValue) {
        return singletonList(new NoValueRuleModifier());
    } else // ConstantValue
    if (styleProp instanceof ConstantValue) {
        Expression expr = ff.literal(((ConstantValue) styleProp).value());
        return singletonList(new SimpleRuleModifier(expr));
    } else // AttributeValue
    if (styleProp instanceof AttributeValue) {
        String attributeName = (String) ((AttributeValue) styleProp).attributeName.get();
        Expression expr = ff.property(attributeName);
        return singletonList(new SimpleRuleModifier(expr));
    } else // FilterMappedValues
    if (styleProp instanceof FilterMappedValues) {
        List<Mapped<Filter, Object>> values = ((FilterMappedValues) styleProp).values();
        return FluentIterable.from(values).transform(mapped -> new SimpleRuleModifier(ff.literal(mapped.value()), mapped.key()));
    } else // ScaleMappedValues
    if (styleProp instanceof ScaleMappedValues) {
        List<Mapped<ScaleRange, Object>> values = ((ScaleMappedValues) styleProp).values();
        return FluentIterable.from(values).transform(mapped -> new SimpleRuleModifier(ff.literal(mapped.value()), mapped.key().min.get(), mapped.key().max.get()));
    } else {
        throw new RuntimeException("Unhandled StylePropertyValue type: " + styleProp.getClass().getSimpleName());
    }
}