searchEngineClient.refresh("_all"); // TODO replace _all
        } catch (final IOException e) {
            logger.warn("Failed to read a sugget elevate word.", e);
        }
    }

    public void exportCsv(final Writer writer) {
        final CsvConfig cfg = new CsvConfig(',', '"', '"');
        cfg.setEscapeDisabled(false);
        cfg.setQuoteDisabled(false);
        @SuppressWarnings("resource")