/**
     * Default label value to use when no specific label is selected.
     * This affects which documents are included in search results by default.
     */
    @Size(max = 1000)
    public String defaultLabelValue;

    /**
     * Default sort order for search results.
     * Defines how search results are ordered when no specific sort is requested.
     */
    @Size(max = 1000)
    public String defaultSortValue;

server](https://fess.codelibs.org/15.3/admin/webconfig-guide.html), [file system](https://fess.codelibs.org/15.3/admin/fileconfig-guide.html), or [Data Store](https://fess.codelibs.org/15.3/admin/dataconfig-guide.html) (such as a CSV or database). Many file formats are supported including (but not limited to): Microsoft Office, PDF, and zip.

*[Fess Site Search](https://github.com/codelibs/fess-site-search)* is a free alternative to [Google Site Search](https://enterprise.google.com/search/products/gss.html)....

    /** The key of the message: Are you sure you want to delete? */
    public static final String LABELS_search_list_delete_confirmation = "{labels.search_list_delete_confirmation}";

    /** The key of the message: Delete All by this Query */
    public static final String LABELS_search_list_button_delete_all = "{labels.search_list_button_delete_all}";

    /** The key of the message: Are you sure you want to delete all by this query? */

            logger.debug("Initializing {}", this.getClass().getSimpleName());
        }
        ComponentUtil.getSsoManager().register(this);

        // Default SAML settings
        // NOTE: Many security settings are set to false by default for compatibility.
        // For production use, it is STRONGLY RECOMMENDED to enable security features:
        // - onelogin.saml2.security.authnrequest_signed

    }

    /**
     * Updates the user's group and role membership information with lazy loading for parent groups.
     * Direct groups are retrieved synchronously, while parent groups are fetched asynchronously
     * to avoid login delays when users have many nested group memberships.
     * @param user The Entra ID user to update.
     */

    }

    /**
     * Checks if domain services are enabled for Entra ID authentication.
     * Uses new entraid.use.ds key with fallback to legacy aad.use.ds.
     * @return true if domain services are enabled, false otherwise.
     */
    default boolean isEntraIdUseDomainServices() {
        String value = getSystemProperty("entraid.use.ds", null);

        }
        return Constants.TRUE.equalsIgnoreCase(secure);
    }

    /**
     * Interface for rewriting search request parameters.
     *
     * Implementations can modify search parameters before they are processed
     * by the search engine, allowing for custom parameter transformation logic.
     */
    public interface SearchRequestParamsRewriter {
        /**
         * Rewrites the given search request parameters.

    /** A map of listeners for configuration updates. */
    protected Map<String, Supplier<String>> updateConfigListenerMap = new HashMap<>();

    /** A set of names of threads that are currently waiting. */
    protected Set<String> waitingThreadNames = Collections.synchronizedSet(new HashSet<>());

    /**
     * Initializes the SystemHelper.