/** The key of the configuration. e.g. 5 */
    String INDEX_number_of_shards = "index.number_of_shards";

    /** The key of the configuration. e.g. 0-1 */
    String INDEX_auto_expand_replicas = "index.auto_expand_replicas";

    /** The key of the configuration. e.g. SHA-512 */
    String INDEX_ID_DIGEST_ALGORITHM = "index.id.digest.algorithm";

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

                try {
                    final String path = fileMap.get("path").toString();
                    final Date timestamp =
                            new SimpleDateFormat(Constants.DATE_FORMAT_ISO_8601_EXTEND_UTC).parse(fileMap.get("@timestamp").toString());
                    for (final DictionaryCreator creator : creatorList) {
                        final DictionaryFile<? extends DictionaryItem> file = creator.create(path, timestamp);

                .replaceAll(Pattern.quote("${fess.index.number_of_shards}"), numberOfShards)//
                .replaceAll(Pattern.quote("${fess.index.auto_expand_replicas}"), autoExpandReplicas);
        for (final UnaryOperator<String> rule : docSettingRewriteRuleList) {
            source = rule.apply(source);
        }
        return source;
    }

        final Date created = DocumentUtil.getValue(doc, fessConfig.getIndexFieldCreated(), Date.class);
        if (created != null) {
            final SimpleDateFormat sdf = new SimpleDateFormat(CoreLibConstants.DATE_FORMAT_ISO_8601_EXTEND);
            createdStr = sdf.format(created);
        } else {
            createdStr = ComponentUtil.getMessageManager().getMessage(locale, "labels.search_unknown");
        }

    public static final String LABELS_number_of_shards_for_doc = "{labels.number_of_shards_for_doc}";

    /** The key of the message: Auto expand replicas */
    public static final String LABELS_auto_expand_replicas_for_doc = "{labels.auto_expand_replicas_for_doc}";

    /** The key of the message: Crawler Indices */
    public static final String LABELS_clear_crawler_index = "{labels.clear_crawler_index}";

        if (crawlingInfoHelper != null) {
            final SimpleDateFormat dateFormat = new SimpleDateFormat(CoreLibConstants.DATE_FORMAT_ISO_8601_EXTEND);
            crawlingInfoHelper.putToInfoMap(key, dateFormat.format(new Date()));
        }
    }

    private void joinCrawlerThread(final Thread crawlerThread) {
        if (crawlerThread != null) {

        } else if (obj instanceof Boolean) {
            buf.append(obj.toString());
        } else if (obj instanceof Date) {
            final SimpleDateFormat sdf = new SimpleDateFormat(CoreLibConstants.DATE_FORMAT_ISO_8601_EXTEND, Locale.ROOT);
            buf.append('\"').append(StringEscapeUtils.escapeJson(sdf.format(obj))).append('\"');
        } else {
            buf.append('\"').append(StringEscapeUtils.escapeJson(obj.toString())).append('\"');

        @SuppressWarnings("resource")
        final CsvReader csvReader = new CsvReader(reader, new CsvConfig());
        final DateFormat formatter = new SimpleDateFormat(CoreLibConstants.DATE_FORMAT_ISO_8601_EXTEND);
        try {
            List<String> list;
            csvReader.readValues(); // ignore header
            while ((list = csvReader.readValues()) != null) {
                try {