*
     * @return the number of queue shards
     */
    @Override
    public int getQueueShards() {
        return ComponentUtil.getFessConfig().getIndexDocumentCrawlerQueueNumberOfShardsAsInteger();
    }

    /**
     * Gets the number of shards for the data index.
     *
     * @return the number of data shards
     */
    @Override
    public int getDataShards() {