protected function getFilesToExport()
    {
        $locales = $this->input->getOption('locales') ? explode(',', $this->input->getOption('locales')) : array();
        $domains = $this->input->getOption('domains') ? explode(',', $this->input->getOption('domains')) : array();

        return $this->getContainer()
            ->get('lexik_translation.translation_storage')
            ->getFilesByLocalesAndDomains($locales, $domains);
    }