*/
    public boolean createIndex(final String index, final String indexName) {
        final FessConfig fessConfig = ComponentUtil.getFessConfig();
        return createIndex(index, indexName, fessConfig.getIndexNumberOfShards(), fessConfig.getIndexAutoExpandReplicas(), true);
    }

    /**
     * Creates a new index with specified settings.
     *
     * @param index              the index configuration name

     * The value is, e.g. 5 <br>
     * comment: Number of primary shards for the index.
     * @return The value of found property. (NotNull: if not found, exception but basically no way)
     */
    String getIndexNumberOfShards();

    /**
     * Get the value for the key 'index.number_of_shards' as {@link Integer}. <br>
     * The value is, e.g. 5 <br>
     * comment: Number of primary shards for the index.