int startedCrawlerNum = 0;
        int activeCrawlerNum = 0;
        try {
            while (startedCrawlerNum < crawlerList.size()) {
                // Force to stop crawl
                if (systemHelper.isForceStop()) {
                    for (final Crawler crawler : crawlerList) {
                        crawler.stop();
                    }
                    break;
                }

                    }
                    errorCount++;
                    logger.warn("Failed to access data. Retry to access it {} times.", errorCount, e);
                } finally {
                    if (systemHelper.isForceStop()) {
                        finishCrawling = true;
                        if (logger.isDebugEnabled()) {
                            logger.debug("Stopped indexUpdater.");
                        }

        return fileList;
    }

    protected File getDesignJspFile(final String path) {
        return new File(LaServletContextUtil.getServletContext().getRealPath(path));
    }

    public boolean isForceStop() {
        return forceStop.get();
    }

    public void setForceStop(final boolean b) {
        forceStop.set(b);
    }

    public String generateDocId(final Map<String, Object> map) {