public function update(Event $event)
{
$urlLoc = $event->get('loc');
if (!$this->sitemap->has($urlLoc)) {
throw new Exception\OutOfBoundsException('Url ' . $urlLoc . ' could not be found.');
}
$url = $this->sitemap->get($urlLoc);
$time = new \DateTime();
$lastmod = $url->getLastmod();
$url->setLastmod($time);
$url->setChangefreq($this->getChangefreq($time->diff(\DateTime::createFromFormat(Url::LASTMOD_FORMAT, $lastmod))));
$this->dump($this->sitemap);
}
