String INDEX_DOCUMENT_CRAWLER_QUEUE_number_of_replicas = "index.document.crawler.queue.number_of_replicas";

    /** The key of the configuration. e.g. 1 */
    String INDEX_DOCUMENT_CRAWLER_DATA_number_of_replicas = "index.document.crawler.data.number_of_replicas";

    /** The key of the configuration. e.g. 1 */
    String INDEX_DOCUMENT_CRAWLER_FILTER_number_of_replicas = "index.document.crawler.filter.number_of_replicas";

                .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;
    }

    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}";