protected function parseFacts($facts_string)
    {
        $facts = array();
        foreach (explode(PHP_EOL, $facts_string) as $line) {
            if (empty($line)) {
                continue;
            }
            list($key, $value) = explode('=', $line, 2);
            $facts[$key] = $value;
        }

        return $facts;
    }