public function allowed($class)
    {
        foreach ($this->_exclude as $namespace) {
            if (strpos($class, $namespace) === 0) {
                return false;
            }
        }
        if ($this->_include === ['*']) {
            return true;
        }
        foreach ($this->_include as $namespace) {
            if (strpos($class, $namespace) === 0) {
                return true;
            }
        }
        return false;
    }