try {
                QueryLog queryLog = queryLogReader.read();
                while (queryLog != null) {
                    if (Thread.currentThread().isInterrupted()) {
                        break;
                    }
                    queryLogs.add(queryLog);
                    queryLog = queryLogReader.read();

     * This method extracts the host from the URL and enforces a delay based on the configured
     * delayMillisBeforeProcessing parameter.
     *
     * @throws InterruptedRuntimeException if the thread is interrupted during the delay
     * @throws CrawlerSystemException if an error occurs while processing the URL
     */
    @Override
    protected void delayBeforeProcessing() {

        if (parentThread != null) {
            try {
                parentThread.join(millis);
            } catch (final InterruptedException e) {
                logger.warn("Interrupted job at {}", parentThread.getName());
            }
        }
    }

    /**
     * Cleans up the crawled data for a given session.