labels.facet_filetype_pdf=filetype:pdf\t\
labels.facet_filetype_txt=filetype:txt\t\
labels.facet_filetype_others=filetype:others\n\

# ranking
rank.fusion.window_size=200
rank.fusion.rank_constant=20
rank.fusion.threads=-1
rank.fusion.score_field=rf_score

# acl
smb.role.from.file=true
smb.available.sid.types=1,2,4:2,5:1
file.role.from.file=true
ftp.role.from.file=true

# backup

    /** The key of the configuration. e.g. 200 */
    String RANK_FUSION_window_size = "rank.fusion.window_size";

    /** The key of the configuration. e.g. 20 */
    String RANK_FUSION_rank_constant = "rank.fusion.rank_constant";

    /** The key of the configuration. e.g. -1 */
    String RANK_FUSION_THREADS = "rank.fusion.threads";

    /** The key of the configuration. e.g. rf_score */

        final FessConfig fessConfig = ComponentUtil.getFessConfig();
        final int rankConstant = fessConfig.getRankFusionRankConstantAsInteger();
        final int size = windowSize / searchers.length;
        if (logger.isDebugEnabled()) {
            logger.debug("The searcher window size is {} and a rank constant is {}.", size, rankConstant);
        }
        final List<Future<SearchResult>> resultList = new ArrayList<>();