} catch (final Exception e) {
            maxBufferSize = 1000;
        }
        queue.offer(event);
        if (size.incrementAndGet() > maxBufferSize) {
            if (queue.poll() != null) {
                size.decrementAndGet();
            }
        }
    }

    /**
     * Drains all events from the buffer and returns them as a list.
     *

    //                                                                         Poll Loop
    //                                                                         ===========

    /**
     * Periodic poll that sends a heartbeat, processes new events, and cleans up expired documents.
     */
    protected void poll() {
        try {
            sendHeartbeat();
        } catch (final Exception e) {

        searchLogHelper.createSearchLog(params, now, "test-query-id", "test query", 0, 10, queryResponseList, context);

        assertFalse(searchLogHelper.searchLogQueue.isEmpty());
        return searchLogHelper.searchLogQueue.poll();
    }

    @Test
    public void test_addSearchLog_accessType_json() {
        final SearchLog searchLog = callCreateSearchLogAndGetResult(Constants.SEARCH_LOG_ACCESS_TYPE_JSON);

    //                                                         Poll Loop Safety
    //                                                         ==================

    @Test
    public void test_poll_callsHeartbeatEventsCleanup() {
        // Verify poll calls sendHeartbeat, fetchNewEvents+dispatch, cleanupExpiredDocuments

        },
        "italian_elision": {
          "type":         "elision",
          "articles": [
                "c", "l", "all", "dall", "dell",
                "nell", "sull", "coll", "pell",
                "gl", "agl", "dagl", "degl", "negl",
                "sugl", "un", "m", "t", "s", "v", "d"
          ]
        },
        "italian_stop": {
          "type":       "stop",

        final List<SearchLog> searchLogList = new ArrayList<>();
        final Map<String, UserInfo> userInfoMap = new HashMap<>();
        while (!queue.isEmpty()) {
            final SearchLog searchLog = queue.poll();
            if (searchLog != null) {
                final String userAgent = searchLog.getUserAgent();
                final boolean isBot =

        indexUpdater.maxErrorCount = 0;

        // Make dataService throw runtime exception
        ((TestDataService) dataService).setThrowRuntimeException(true);

        indexUpdater.start();

        // Poll for thread to process exceptions
        for (int i = 0; i < 20; i++) {
            if (!indexUpdater.isAlive() || indexUpdater.getState() == Thread.State.WAITING

    }

    // ===================================================================================
    //                                                                           Roll-back
    //                                                                           =========
    @Override
    public void rollback() {
        for (MultipartFormFile formFile : elementsFile.values()) {

"musste", "nach", "nicht", "nichts", "noch", "nun", "nur", "ob", "oder", "ohne", "sehr", "sein", "seine", "seinem", "seinen", "seiner", "seines", "selbst", "sich", "sie", "ihnen", "sind", "so", "solche", "solchem", "solchen", "solcher", "solches", "soll", "sollte", "sondern", "sonst", "über", "um", "und", "uns", "unse", "unsem", "unsen", "unser", "unses", "unter", "viel", "vom", "von", "vor", "während", "war", "waren", "warst", "was", "weg", "weil", "weiter", "welche", "welchem", "welchen", "welcher",...

"musste", "nach", "nicht", "nichts", "noch", "nun", "nur", "ob", "oder", "ohne", "sehr", "sein", "seine", "seinem", "seinen", "seiner", "seines", "selbst", "sich", "sie", "ihnen", "sind", "so", "solche", "solchem", "solchen", "solcher", "solches", "soll", "sollte", "sondern", "sonst", "über", "um", "und", "uns", "unse", "unsem", "unsen", "unser", "unses", "unter", "viel", "vom", "von", "vor", "während", "war", "waren", "warst", "was", "weg", "weil", "weiter", "welche", "welchem", "welchen", "welcher",...