final long start1 = System.nanoTime();
        controller.delayBeforeProcessing();
        final long elapsed1 = (System.nanoTime() - start1) / 1000000;
        assertTrue("First access should not delay", elapsed1 < 50);

        // Second access to same host - should delay
        q.setUrl("http://example.com/page2");
        final long start2 = System.nanoTime();

 * <ol>
 *   <li>Initialization: Sets up the crawler context and initializes the URL filter.</li>
 *   <li>Thread Creation: Creates a group of crawler threads to perform the actual crawling.</li>
 *   <li>Execution: Starts the crawler threads and waits for them to complete.</li>
 *   <li>Cleanup: Deletes the crawled data and clears the URL filter.</li>
 * </ol>
 *

        }
    }

    /**
     * Validates the OAuth2 state parameter.
     * @param session The HTTP session containing stored state data.
     * @param state The state parameter to validate.
     * @return The validated state data.
     */
    protected StateData validateState(final HttpSession session, final String state) {
        if (StringUtils.isNotEmpty(state)) {

        }
    }

    /**
     * Starts a new process with the given session ID and command list.
     * Uses default buffer size and no output callback.
     *
     * @param sessionId unique identifier for the process session
     * @param cmdList list of command and arguments to execute
     * @param pbCall callback to configure the ProcessBuilder
     * @return JobProcess representing the started process
     */

            cb.fetchFirst(fessConfig.getPageScheduledJobMaxFetchSizeAsInteger());
        });
    }

    /**
     * Stores a scheduled job.
     * @param scheduledJob The scheduled job to store.
     */
    public void store(final ScheduledJob scheduledJob) {
        scheduledJobBhv.insertOrUpdate(scheduledJob, op -> {
            op.setRefreshPolicy(Constants.TRUE);
        });
    }

     */
    public DataIndexHelper() {
        // Default constructor with explicit documentation
    }

    /**
     * Initiates crawling for all configured data stores.
     * This method retrieves all available data configurations and
     * starts the crawling process for each one.
     *
     * @param sessionId unique identifier for this crawling session
     */
    public void crawl(final String sessionId) {

            }
            logger.warn("Failed to store failure url: url={}", urlQueue != null ? urlQueue.getUrl() : "unknown", e);
        }

        super.processCrawlingException(objs);
        if (urlQueue != null) {
            ComponentUtil.getCrawlerStatsHelper().record(urlQueue, StatsAction.ACCESS_EXCEPTION);
        }
    }

    /**
     * Stores a failure URL with error information for later analysis.
     *

            }
        });
    }

    private void importBulk(final String fileName, final File tempFile) {
        if (logger.isDebugEnabled()) {
            logger.debug("Bulk data import started: fileName={}", fileName);
        }

        final ObjectMapper mapper = new ObjectMapper();
        final AtomicBoolean resetJobs = new AtomicBoolean(false);

/**
 * An abstract base class for implementing {@link IntervalController}.
 * Provides a common structure for handling delays at different stages of the crawling process.
 * It encapsulates the delay logic and exception handling, allowing subclasses to focus on
 * defining the specific delay behavior for each stage.
 *
 * <p>
 * This class defines the contract for delaying the crawling process at various points, such as:
 * </p>
 * <ul>

    }

    /**
     * Stores a job log entry in the database.
     *
     * @param jobLog the job log entry to store
     */
    public void store(final JobLog jobLog) {
        ComponentUtil.getComponent(JobLogBhv.class).insertOrUpdate(jobLog, op -> {
            op.setRefreshPolicy(Constants.TRUE);
        });
    }

    /**
     * Starts a monitor task for tracking job execution.
     *