protected function load()
    {
        $data = array();

        /** @var LoaderInterface $loader */
        foreach ($this->loaders as $loader) {
            try {
                $data = array_merge($data, $loader->load());

                if ($loader->stopPropagation()) {
                    break;
                }
            } catch (LoaderException $e) {
                $this->getLogger()->error($e->getMessage());
            }
        }

        return $data;
    }