*
     * @param sessionId the session ID to update
     * @param name the name to set for the crawling session (uses system name if blank)
     * @param dayForCleanup number of days until cleanup (sets expiration if >= 0)
     * @throws FessSystemException if unable to store the updated crawling session
     */
    public void updateParams(final String sessionId, final String name, final int dayForCleanup) {

                        final RC4 rc4 = new RC4(ntlm2SessionKey);
                        rc4.update(masterKey, 0, 16, exchangedKey, 0);
                        /* RC4 was not added to Java until 1.5u7 so let's use our own for a little while longer ...
                        try {
                            Cipher rc4 = Cipher.getInstance("RC4");

        },

        },

 * ACE and <i>all</i> of the bits in the desired access bits match bits in
 * the access mask of the ACE, the access check is successful. Otherwise,
 * more ACEs are evaluated until all desired access bits (combined)
 * are "allowed". If all of the desired access bits are not "allowed"
 * the then same process is repeated for inherited ACEs.
 * <p>

 * <li>Sends processed documents to the search engine for indexing</li>
 * <li>Manages cleanup of processed crawler session data</li>
 * </ul>
 *
 * <p>The updater runs continuously until crawling is finished and all documents are processed.
 * It includes error handling, retry logic, and performance monitoring capabilities.
 *
 */
public class IndexUpdater extends Thread {
    /** Logger for this class */

 * ACE and <i>all</i> of the bits in the desired access bits match bits in
 * the access mask of the ACE, the access check is successful. Otherwise,
 * more ACEs are evaluated until all desired access bits (combined)
 * are "allowed". If all of the desired access bits are not "allowed"
 * the then same process is repeated for inherited ACEs.
 * <p>

    protected List<IntervalRule> ruleList = new ArrayList<>();

    /**
     * Checks the crawler status and waits if the crawler is not running.
     * This method blocks until the crawler is running again.
     */
    public void checkCrawlerStatus() {
        while (!crawlerRunning) {
            ThreadUtil.sleepQuietly(crawlerWaitMillis);
        }
    }

    /**

        /* We cannot use Transport.sendrecv() yet because
         * the Transport thread is not setup until doConnect()
         * returns and we want to supress all communication
         * until we have properly negotiated.
         */
        synchronized (sbuf) {
            if (port == 139) {
                ssn139();
            } else {

    private int[] context = new int[4];

    /**
     * Number of bytes processed so far mod. 2 power of 64.
     */
    private long count;

    /**
     * 512 bits input buffer = 16 x 32-bit words holds until reaches 512 bits.
     */
    private byte[] buffer = new byte[BLOCK_LENGTH];

    /**
     * 512 bits work buffer = 16 x 32-bit words
     */
    private final int[] X = new int[16];

    // Constructors