/**
* Normalizes an url.
*
* @param string|object $url The url.
*
* @throws HttpAdapterException If the url is not valid.
*
* @return string The normalized url.
*/
public static function normalize($url)
{
$url = (string) $url;
if (($parts = parse_url($url)) === false || !isset($parts['scheme']) || !isset($parts['host'])) {
throw HttpAdapterException::urlIsNotValid($url);
}
return $url;
}