final String sessionId = "session123";
        indexUpdater.addFinishedSessionId(sessionId);
        assertTrue(indexUpdater.finishedSessionIdList.contains(sessionId));
    }

    // Test addFinishedSessionId with multiple sessions
    @Test
    public void test_addFinishedSessionId_multiple() {
        indexUpdater.addFinishedSessionId("session1");

     * @return the session, or null if not found or expired
     */
    public ChatSession getSession(final String sessionId) {
        final ChatSession session = findSession(sessionId);
        if (session == null) {
            return null;
        }
        session.touch();
        if (logger.isDebugEnabled()) {
            logger.debug("Session retrieved. sessionId={}, messageCount={}", sessionId, session.getMessages().size());

        if (options.sessionId != null) {
            options.sessionId = options.sessionId.replaceAll("-", "_");
        }

        // Check that sessionId was sanitized (hyphens replaced with underscores)
        assertEquals("test_session_123", options.sessionId);
    }

    @Test
    public void test_process_withPropertiesPath() throws Exception {

     * Removes URL filters, URL queues, and access result data for the session.
     *
     * @param sessionId the session ID whose data should be deleted
     */
    private void deleteBySessionId(final String sessionId) {
        try {
            urlFilterService.delete(sessionId);
        } catch (final Exception e) {
            logger.warn("Failed to delete UrlFilter: sessionId={}", sessionId, e);

    }

    /**
     * Clears the chat session.
     *
     * @param form the chat form containing the session ID to clear
     * @return the HTML response redirecting to the chat page
     */
    @Execute
    public HtmlResponse clear(final ChatForm form) {
        if (form.sessionId != null) {
            if (logger.isDebugEnabled()) {
                logger.debug("Clearing chat session. sessionId={}", form.sessionId);

        // Test with blank name
        crawlingInfoHelper.updateParams(sessionId, "", -1);

        // Test with null name
        crawlingInfoHelper.updateParams(sessionId, null, -1);
    }

    @Test
    public void test_updateParams_noSession() {
        final String sessionId = "non-existent-session";

        ComponentUtil.register(new CrawlingInfoService() {
            @Override

        session.setSessionId("session-456");
        session.setUserId("user-789");
        session.setCreatedAt(createdAt);
        session.setLastAccessedAt(lastAccessedAt);
        session.setMessages(messages);

        assertEquals("session-456", session.getSessionId());
        assertEquals("user-789", session.getUserId());
        assertEquals(createdAt, session.getCreatedAt());

            this.sessionId = sessionId;
            this.message = message;
            this.sources = sources;
        }

        /**
         * Gets the session ID.
         *
         * @return the session ID
         */
        public String getSessionId() {
            return sessionId;
        }

     * This method starts crawling only for the data configurations
     * specified in the configIdList parameter.
     *
     * @param sessionId unique identifier for this crawling session
     * @param configIdList list of data configuration IDs to crawl
     */
    public void crawl(final String sessionId, final List<String> configIdList) {

/**
 * Represents a chat session containing conversation history.
 *
 * @author FessProject
 */
public class ChatSession {

    /** The unique session identifier. */
    private String sessionId;

    /** The user ID associated with this session. */
    private String userId;

    /** The timestamp when the session was created. */
    private LocalDateTime createdAt;