/**
* @param string $tag
* @param string $string
*
* @return string
*
* @throws SitemapException
*/
protected function setStringValue($tag, $string)
{
if (false === ValidatorTrait::validateString($string)) {
throw new SitemapException(\sprintf('Value for %s is not valid', $tag));
}
return "<{$tag}>{$string}</{$tag}>";
}
