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,