com.societegenerale.commons.plugin.utils.ReflectionUtils Maven / Gradle / Ivy

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The core logic for Maven or Gradle ArchUnit plugin

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package com.societegenerale.commons.plugin.utils;

import java.lang.reflect.Constructor;
import java.lang.reflect.Field;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;

public class ReflectionUtils {
    public static Class loadClassWithContextClassLoader(String className) {
        try {
            return Thread.currentThread().getContextClassLoader().loadClass(className);
        } catch (ClassNotFoundException e) {
            throw ReflectionException.wrap(e);
        }
    }

    public static  T newInstance(Class clazz) {
        try {
            Constructor constructor = clazz.getDeclaredConstructor();
            constructor.setAccessible(true);
            return constructor.newInstance();
        } catch (InstantiationException | IllegalAccessException | NoSuchMethodException | InvocationTargetException e) {
            throw ReflectionException.wrap(e);
        }
    }

    // This will always be unsafe, so we might as well make it easier for the caller
    @SuppressWarnings("unchecked")
    public static  T invoke(Method method, Object owner, Object... args) {
        try {
            method.setAccessible(true);
            return (T) method.invoke(owner, args);
        } catch (IllegalAccessException | InvocationTargetException e) {
            throw ReflectionException.wrap(e);
        }
    }

    // This will always be unsafe, so we might as well make it easier for the caller
    @SuppressWarnings("unchecked")
    public static  T getValue(Field field, Object owner) {
        try {
            field.setAccessible(true);
            return (T) field.get(owner);
        } catch (IllegalAccessException e) {
            throw ReflectionException.wrap(e);
        }
    }
}