protected final String indexName;
    /** Supported fields. */
    protected final String[] supportedFields;

    /** Scroll size. */
    protected int scrollSize = 1;
    /** Maximum retry count. */
    protected int maxRetryCount = 5;
    /** Limit of document size. */
    protected long limitOfDocumentSize = 50000;
    /** Query builder. */

        assertEquals("1", extractData.getValues("meta:paragraph-count")[0]);
        assertEquals("太郎", extractData.getValues("dc:creator")[0]);
        assertEquals("かいしゃ", extractData.getValues("extended-properties:Company")[0]);
        assertEquals("2010-07-22T00:21:00Z", extractData.getValues("dcterms:created")[0]);
        assertEquals("1", extractData.getValues("meta:line-count")[0]);

        String scrollId = response.getScrollId();
        int count = 0;
        try {
            while (scrollId != null) {
                final SearchHit[] hits = response.getHits().getHits();
                if (hits.length == 0) {
                    break;
                }

                count += hits.length;
                final BulkResponse bulkResponse = get(c -> {

            AtomicInteger count = new AtomicInteger();
            String[] queryLogs = new String[] { field + ":検索", field + ":fess", field + ":検索エンジン" };

            @Override
            public QueryLog read() {
                if (count.get() >= queryLogs.length) {
                    return null;
                }
                return new QueryLog(queryLogs[count.getAndIncrement()], null);
            }

            if (now - previousTime < interval) {
                throw new IllegalStateException();
            }
            previousTime = now;

            count++;
            if (count <= exceptionCount) {
                throw new CrawlerSystemException("exception " + count);
            }

            final ResponseData responseData = new ResponseData();
            responseData.setUrl(request.getUrl());

        // CrawlerContext crawlerContext = (CrawlerContext) objs[0];
    }

    /**
     * Processes no URL in queue log events.
     *
     * @param objs the log objects (should contain UrlQueue and thread check count)
     */
    protected void processNoUrlInQueue(final Object... objs) {
        // CrawlerContext crawlerContext = (CrawlerContext) objs[0];
        final UrlQueue<?> urlQueue = (UrlQueue<?>) objs[1];

     *
     * @return the maximum duplicated path count
     */
    public int getMaxDuplicatedPath() {
        return maxDuplicatedPath;
    }

    /**
     * Sets the maximum number of duplicated paths to attempt.
     *
     * @param maxDuplicatedPath the maximum duplicated path count to set
     */
    public void setMaxDuplicatedPath(final int maxDuplicatedPath) {

    protected boolean noWaitOnFolder = false;

    /**
     * Increments the active thread count.
     */
    protected void startCrawling() {
        synchronized (crawlerContext.activeThreadCountLock) {
            crawlerContext.activeThreadCount++;
        }
    }

    /**
     * Decrements the active thread count.
     */
    protected void finishCrawling() {

     */
    public void setNumOfThread(final int numOfThread) {
        crawlerContext.numOfThread = numOfThread;
    }

    /**
     * Sets the maximum thread check count.
     * @param maxThreadCheckCount The maximum thread check count.
     */
    public void setMaxThreadCheckCount(final int maxThreadCheckCount) {
        crawlerContext.maxThreadCheckCount = maxThreadCheckCount;
    }

    /**

            int count = 0;
            try {
                while (scrollId != null) {
                    final SearchHit[] hits = response.getHits().getHits();
                    if (hits.length == 0) {
                        break;
                    }
                    for (final SearchHit hit : hits) {
                        array[count] = hit.getSourceAsMap();