public function get($feedName)
    {
        if (!$this->has($feedName)) {
            throw new \InvalidArgumentException(
                sprintf("Specified feed '%s' is not defined in your configuration.", $feedName)
            );
        }

        if (!isset($this->feeds[$feedName])) {
            $feed = new Feed($this->config['feeds'][$feedName], $this->formatters);
            $feed->setRouter($this->router);

            $this->feeds[$feedName] = $feed;
        }

        return $this->feeds[$feedName];
    }