final String source;
                if (numberOfReplicas > 0) {
                    source = "{\"settings\":{\"index\":{\"number_of_shards\":" + numberOfShards
                            + ",\"number_of_replicas\":0,\"auto_expand_replicas\":\"0-" + numberOfReplicas + "\"}}}";
                } else {

index.document.crawler.queue.number_of_shards=10
index.document.crawler.data.number_of_shards=10
index.document.crawler.filter.number_of_shards=10
index.document.crawler.queue.number_of_replicas=1
index.document.crawler.data.number_of_replicas=1
index.document.crawler.filter.number_of_replicas=1
index.config.index=fess_config
index.user.index=fess_user
index.log.index=fess_log
index.dictionary.prefix=

# doc management

    /** 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";