public static function fromXml($data)
{
$doc = new DOMDocument();
$parseOk = false;
$parseOk = $doc->loadXML($data);
if (!$parseOk) {
throw new EsuException('Failed to parse Policy XML');
}
$policy = new Policy();
$root = $doc->firstChild;
if ($root->localName != 'policy') {
throw new EsuException('Expected root node to be \'policy\'. It was ' . $root->localName);
}
$policy->loadFromElement($root);
return $policy;
}
