*
     * @param sessionId the session ID to process
     * @return the canonical session ID (portion before first hyphen, or original if no hyphen)
     */
    public String getCanonicalSessionId(final String sessionId) {
        final int idx = sessionId.indexOf('-');
        if (idx >= 0) {
            return sessionId.substring(0, idx);
        }
        return sessionId;
    }

    /**

        if (StringUtil.isBlank(options.sessionId)) {
            // use a default session id
            final SimpleDateFormat sdf = new SimpleDateFormat("yyyyMMddHHmmss");
            options.sessionId = sdf.format(new Date());
        } else {
            options.sessionId = options.sessionId.replace('-', '_');
        }

     *
     * @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 url filters: {}", sessionId, e);
        }
        try {

            if (Constants.FALSE.equals(initParamMap.getAsString(DELETE_OLD_DOCS))) {
                return;
            }
            final String sessionId = initParamMap.getAsString(Constants.SESSION_ID);
            if (StringUtil.isBlank(sessionId)) {
                logger.warn("Invalid sessionId at {}", dataConfig);
                return;
            }
            final FessConfig fessConfig = ComponentUtil.getFessConfig();

    }

    // Test addFinishedSessionId
    public void test_addFinishedSessionId() {
        final String sessionId = "session123";
        indexUpdater.addFinishedSessionId(sessionId);
        assertTrue(indexUpdater.finishedSessionIdList.contains(sessionId));
    }

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

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

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

    public void test_process_withPropertiesPath() throws Exception {
        // Test that properties path is properly handled

    public void test_execute_withCustomSessionId() {
        thumbnailJob.sessionId = "custom-session-456";
        thumbnailJob.cleanup();

        testProcessHelper.exitValue = 0;

        String result = thumbnailJob.execute();

        assertTrue(result.contains("Session Id: custom-session-456"));
        assertEquals("custom-session-456", thumbnailJob.sessionId);
    }

    // Test execute with process failure

        assertNull(options.sessionId);
        assertNull(options.name);
        assertNull(options.propertiesPath);
    }

    // Test Options class with null values
    public void test_Options_nullValues() {
        SuggestCreator.Options options = new SuggestCreator.Options();
        options.sessionId = null;
        options.propertiesPath = null;

        return this;
    }

    /**
     * Sets the session ID for this job execution.
     *
     * @param sessionId the unique session identifier
     * @return this ExecJob instance for method chaining
     */
    public ExecJob sessionId(final String sessionId) {
        this.sessionId = sessionId;
        return this;
    }

    /**
     * Sets the log file path for this job execution.
     *

            }

            final String sessionId;
            if (searchLog.getUserSessionId() != null) {
                sessionId = searchLog.getUserSessionId();
            } else if (Constants.SEARCH_LOG_ACCESS_TYPE_WEB.equals(searchLog.getAccessType())) {
                sessionId = searchLog.getClientIp();
            } else {
                sessionId = searchLog.getClientIp() + '_' + searchLog.getSearchWord();