return switchAliasesResult;
        }

        @Override
        protected void insertBulkData(final FessConfig fessConfig, final String configIndex, final String dataPath) {
            insertBulkData(fessConfig, configIndex, dataPath, false);
        }

        @Override
        protected void insertBulkData(final FessConfig fessConfig, final String configIndex, final String dataPath,

     * @param configIndex the target index name
     * @param dataPath    the path to the bulk data file
     */
    protected void insertBulkData(final FessConfig fessConfig, final String configIndex, final String dataPath) {
        insertBulkData(fessConfig, configIndex, dataPath, false);
    }

    /**
     * Inserts bulk data from a file into an index.
     *