// Generate unique session ID for key management
        this.sessionId = String.format("smb-enc-%d-%d", System.currentTimeMillis(), secureRandom.nextLong());

        if (keyManager != null) {
            // Store keys securely
            String encKeyId = sessionId + "-enc";
            String decKeyId = sessionId + "-dec";

crawler1.setSessionId("session1");
crawler1.addUrl("https://site1.com");

Crawler crawler2 = container.getComponent("crawler");  
crawler2.setSessionId("session2");
crawler2.addUrl("https://site2.com");

// Execute concurrently
crawler1.setBackground(true);
crawler2.setBackground(true);

String sessionId1 = crawler1.execute();
String sessionId2 = crawler2.execute();

    }

    /**
     * Retrieves the parameters from the most recent crawling session for a given session ID.
     * Returns an empty list if no crawling information is found for the session.
     *
     * @param sessionId the session identifier to find the latest crawling parameters for
     * @return a list of CrawlingInfoParam entities from the latest session, or empty list if none found
     */

            }

            final JobProcess jobProcess = processHelper.startProcess(sessionId, cmdList, pb -> {
                pb.directory(baseDir);
                pb.redirectErrorStream(true);
                final Map<String, String> environment = pb.environment();
                environment.put("SESSION_ID", sessionId);
                environment.put("OPENSEARCH_URL", SystemUtil.getSearchEngineHttpAddress());

     *
     * @param sessionId The session ID.
     * @param url The URL.
     */
    void add(String sessionId, String url);

    /**
     * Inserts a URL queue.
     *
     * @param urlQueue The URL queue.
     */
    void insert(QUEUE urlQueue);

    /**
     * Deletes a URL queue.
     *
     * @param sessionId The session ID.
     */
    void delete(String sessionId);

    /**

            public void offerAll(String sessionId, List<UrlQueue<?>> newUrlQueueList) {
            }

            @Override
            public UrlQueue<?> poll(String sessionId) {
                return null;
            }

            @Override
            public void saveSession(String sessionId) {
            }

            @Override
            public boolean visited(UrlQueue<?> urlQueue) {

        uqList.addAll(urlQueueList);
        urlQueueMap.put(sessionId, uqList);
    }

    /**
     * Removes the URL queue for the specified session ID.
     * @param sessionId the session ID
     */
    public synchronized void removeUrlQueueList(final String sessionId) {
        urlQueueMap.remove(sessionId);
    }

    /**
     * Clears all URL queues for all sessions.
     */

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

    /**
     * Sets the session ID.
     * @param sessionId The session ID.
     */
    public void setSessionId(final String sessionId) {
        this.sessionId = sessionId;
    }

    /**

     *
     * @param sessionId The session ID.
     */
    @Override
    public void delete(final String sessionId) {
        deleteBySessionId(sessionId);
    }

    /**
     * Gets an access result by session ID and URL.
     *
     * @param sessionId The session ID.
     * @param url The URL.
     * @return The access result, or null if not found.
     */
    @Override

     */
    @Override
    public XContentBuilder toXContent(final XContentBuilder builder, final Params params) throws IOException {
        builder.startObject();
        if (sessionId != null) {
            builder.field(SESSION_ID, sessionId);
        }
        if (ruleId != null) {
            builder.field(RULE_ID, ruleId);
        }
        if (url != null) {
            builder.field(URL, url);
        }