public String execute() {
        final SearchLogHelper searchLogHelper = ComponentUtil.getSearchLogHelper();

        final StringBuilder resultBuf = new StringBuilder();

        try {
            searchLogHelper.storeSearchLog();
        } catch (final Exception e) {
            logger.error("Failed to store a search log.", e);
            resultBuf.append(e.getMessage()).append("\n");
        }

        return resultBuf.toString();

            }
        }

        if (ComponentUtil.getFessConfig().isSuggestSearchLog()) {
            logger.info("Parsing words from search logs.");
            try {
                suggestHelper.storeSearchLog();
            } catch (final Exception e) {
                if (logger.isDebugEnabled()) {
                    logger.debug("Failed to update suggest index.", e);
                }
                exitCode.set(1);

            logger.warn("Failed to initialize Suggester.", e);
        }
    }

    public Suggester suggester() {
        return suggester;
    }

    public void storeSearchLog() {
        final SearchLogBhv searchLogBhv = ComponentUtil.getComponent(SearchLogBhv.class);

        searchLogBhv.selectBulk(cb -> {

                searchLog.addDocument(map);
            });
        }
    }

    public void addClickLog(final ClickLog clickLog) {
        clickLogQueue.add(clickLog);
    }

    public void storeSearchLog() {
        if (!searchLogQueue.isEmpty()) {
            final Queue<SearchLog> queue = searchLogQueue;
            searchLogQueue = new ConcurrentLinkedQueue<>();
            processSearchLogQueue(queue);
        }