public function load($url)
{
//@todo extract url validation
if (empty($url)) {
throw new \Exception('Empty url');
}
if ($this->cached($url)) {
$content = $this->load_cache($url);
} else {
$content = parent::load($url);
if (!empty($content)) {
$this->save_cache($url, $content);
}
}
return $content;
}
