public function mapOxActionToFileCache($sOxActionId)
    {
        $aOxActionToCacheIds = [
            'oxbargain' => 'RSS_BARGAIN',
            'oxtop5' => 'RSS_TopShop',
            'oxnewest' => 'RSS_NewArts'
        ];

        $sFileCacheName = $aOxActionToCacheIds[$sOxActionId];

        if (is_null($sFileCacheName)) {
            $sFileCacheName = '';
        }

        return $sFileCacheName;
    }