* @return true if the thread is actively executing
         */
        public boolean isRunning() {
            return running;
        }

        /**
         * Waits for the crawling thread to terminate.
         * This method blocks until the thread completes its execution.
         * Interrupted exceptions are caught and logged at debug level.
         */
        public void awaitTermination() {
            try {

     * <li>Sends processed documents to the search engine</li>
     * <li>Cleans up processed data and manages crawler sessions</li>
     * </ul>
     *
     * <p>The method includes error handling, retry logic, and will terminate
     * if too many empty results are encountered or if a system shutdown is requested.
     */
    @Override
    public void run() {
        if (dataService == null) {

            this.p = p;
            this.ist = ist;
            this.timeout = timeout;
        }

        /**
         * Runs the process destroyer task to terminate the process.
         */
        @Override
        public void run() {
            if (!p.isAlive()) {
                if (logger.isDebugEnabled()) {
                    logger.debug("Process {} is not alive.", p);