de.larsgrefer.sass.embedded.functions.HostFunctionFactory Maven / Gradle / Ivy

Go to download

Show more of this group Show more artifacts with this name
Show all versions of sass-embedded-host Show documentation

SASS Embedded Host

There is a newer version: 4.0.0-m2

package de.larsgrefer.sass.embedded.functions;

import lombok.experimental.UtilityClass;

import javax.annotation.Nonnull;
import javax.annotation.Nullable;
import java.lang.reflect.Method;
import java.util.ArrayList;
import java.util.List;
import java.util.concurrent.Callable;
import java.util.function.BiFunction;
import java.util.function.Function;

/**
 * @author Lars Grefer
 */
@UtilityClass
public class HostFunctionFactory {

    public  List allSassFunctions(@Nonnull T object) {
        return allSassFunctions((Class) object.getClass(), object);
    }

    public List allSassFunctions(@Nonnull Class clazz) {
        return allSassFunctions(clazz, null);
    }

    public  List allSassFunctions(@Nonnull Class clazz, @Nullable T object) {
        List result = new ArrayList<>();

        Method[] methods = clazz.getMethods();

        for (Method method : methods) {
            if (method.isAnnotationPresent(SassFunction.class)) {
                result.add(ofMethod(method, object));
            }
        }

        return result;
    }

    public HostFunction ofMethod(Method method) {
        return ofMethod(method, null);
    }

    public HostFunction ofMethod(@Nonnull Method method, @Nullable Object targetObject) {
        return new ReflectiveHostFunction(method, targetObject);
    }

    public HostFunction ofLambda(String name, Callable lambda) {
        return new CallableHostFunction(name, lambda);
    }

    public  HostFunction ofLambda(String name, Class argType, Function lambda) {
        return new FunctionHostFunction<>(name, argType, lambda);
    }

    public  HostFunction ofLambda(String name, Class arg0Type, Class arg1Type, BiFunction lambda) {
        return new BiFunctionHostFunction<>(name, arg0Type, arg1Type, lambda);
    }
}