class TranslationsStream

class TranslationsStream extends LocalStream {
    
    /**
     * {@inheritdoc}
     */
    public static function getType() {
        return StreamWrapperInterface::LOCAL_HIDDEN;
    }
    
    /**
     * {@inheritdoc}
     */
    public function getName() {
        return t('Translation files');
    }
    
    /**
     * {@inheritdoc}
     */
    public function getDescription() {
        return t('Translation files');
    }
    
    /**
     * {@inheritdoc}
     */
    public function getDirectoryPath() {
        return \Drupal::config('locale.settings')->get('translation.path');
    }
    
    /**
     * Implements Drupal\Core\StreamWrapper\StreamWrapperInterface::getExternalUrl().
     * @throws \LogicException
     *   PO files URL should not be public.
     */
    public function getExternalUrl() {
        throw new \LogicException('PO files URL should not be public.');
    }

}