NO_URL_IN_QUEUE,
    /** Indicates the start of a crawler thread. */
    START_THREAD,
    /** Indicates the finish of a crawler thread. */
    FINISHED_THREAD,
    /** Indicates no response processor is available. */
    NO_RESPONSE_PROCESSOR,
    /** Indicates no rule is available for processing. */
    NO_RULE,
    /** Indicates a system error occurred. */
    SYSTEM_ERROR

                    logger.debug("Failed to access UserInfo cache.", e);
                }
            }
        }
        return OptionalEntity.empty();
    }

    /**
     * Processes the search log queue.
     *
     * @param queue The search log queue.
     */
    protected void processSearchLogQueue(final Queue<SearchLog> queue) {

     */
    void addExclude(String urlPattern);

    /**
     * Process an url when it's added as a seed url.
     *
     * @param url URL
     */
    void processUrl(String url);

    /**
     * Clear this filter.
     */
    void clear();

    /**
     * CORS header for specifying cache duration for preflight requests.
     */
    protected static final String ACCESS_CONTROL_MAX_AGE = "Access-Control-Max-Age";

    /**
     * Processes the CORS request by setting appropriate headers.
     *
     * @param origin the origin of the request
     * @param request the servlet request
     * @param response the servlet response
     */

    }

    /**
     * Destroys the web API filter and cleans up resources.
     */
    @Override
    public void destroy() {
        // nothing
    }

    /**
     * Filters HTTP requests and processes them through appropriate web API managers.
     *
     * @param request The servlet request
     * @param response The servlet response
     * @param chain The filter chain
     * @throws IOException If an I/O error occurs

            }
        }

        return true;
    }

    /*
     * (non-Javadoc)
     *
     * @see org.codelibs.fess.crawler.filter.UrlFilter#processUrl(java.lang.String)
     */
    @Override
    public void processUrl(final String url) {
        if (includeFilteringPattern != null) {
            addInclude(url.replaceAll(urlPattern, includeFilteringPattern));
        }

/**
 * Exception thrown during SSO (Single Sign-On) processing with message code support.
 *
 * This exception is used to indicate errors that occur during SSO authentication
 * and authorization processes. It carries both a message code for internationalization
 * and localization purposes, as well as detailed error information. The message code
 * can be used by the UI layer to display appropriate error messages to users.
 */

 *
 * @param <RESULT> the type of access result that extends {@link AccessResult}
 */
public interface AccessResultCallback<RESULT extends AccessResult<?>> {
    /**
     * Processes the given access result.
     *
     * @param accessResult the result of the access operation to be processed
     */
    void iterate(RESULT accessResult);

            throw new CrawlingAccessException("Could not access " + file.getPath(), e);
        }
    }

    /**
     * Processes allowed SIDs (Security Identifiers) and adds them to the SID set.
     * If the SID is a group, it recursively processes all group members.
     *
     * @param file the SMB1 file
     * @param sid the SID to process
     * @param sidSet the set of SIDs to add to
     */

/**
 * Exception thrown during SSO (Single Sign-On) processing operations.
 *
 * This exception is used to indicate errors that occur during the execution
 * of SSO authentication and authorization processes. It extends FessSystemException
 * to provide consistent error handling within the Fess system for SSO-related
 * processing failures such as token validation errors, communication failures