public function setLocale($locale)
    {
        if (!is_string($locale) || empty($locale)) {
            throw new \InvalidArgumentException('Locale must be an IETF language tag.');
        }

        // Set the Locale on Fixer that needs it
        foreach ($this->_rules as $rule) {
            if ($rule instanceof LocaleAwareFixerInterface) {
                $rule->setLocale($locale);
            }
        }

        $this->locale = $locale;
    }