def handle_url(self, new_url, requested_url):
if not isinstance(new_url, Url):
new_url = Url(new_url)
if requested_url is not None:
if not isinstance(requested_url, Url):
requested_url = Url(requested_url)
new_url.abstract_url = self.calculate_abstract_url(new_url, requested_url)
if not self.database_manager.url_exists(new_url):
new_url.url_structure = self.calculate_url_structure(new_url)
return new_url
