public function findClass($class)
    {
        if (strrpos($class, '\\') !== false) {
            $file = Loaders\Psr4::getInstance()->findClass($class);
            if (!$file) {
                $file = Loaders\Psr0::getInstance()->findClass($class);
            }
        } else {
            $file = Loaders\Pear::getInstance()->findClass($class);
        }

        return $file;
    }