/**
     * Default constructor.
     */
    public FessXpathTransformer() {
        super();
    }

    /**
     * Initializes the transformer after dependency injection.
     * Sets up the Fess configuration and data serializer components.
     */
    @PostConstruct
    public void init() {
        if (logger.isDebugEnabled()) {

                return fessConfig.getRoleSearchGroupPrefix();
            }
        }
        return null;
    }

    /**
     * Escapes special characters in an LDAP search filter to prevent injection attacks.
     *
     * @param filter the LDAP search filter to escape
     * @return the escaped filter string
     */
    protected String escapeLDAPSearchFilter(String filter) {

	VFMAXVV		V1, V2, V3			// d791201a
	VFMAXVV		V1, V2, V0, V3			// d7912018
	VFMAXVF		F10, V2, V3			// d751251a
	VFMAXVF		F10, V2, V0, V3			// d7512518

	// 31.13.12: Vector Floating-Point Sign-Injection Instructions
	VFSGNJVV	V1, V2, V3			// d7912022
	VFSGNJVV	V1, V2, V0, V3			// d7912020
	VFSGNJVF	F10, V2, V3			// d7512522
	VFSGNJVF	F10, V2, V0, V3			// d7512520
	VFSGNJNVV	V1, V2, V3			// d7912026

                    throw new RuntimeException(e);
                }
            });
        } catch (SimpleCircuitBreaker.CircuitBreakerOpenException e) {
            // Log circuit breaker rejection
            auditLogger.logSecurityViolation("Circuit breaker open for SMB connection",
                    java.util.Map.of("address", address.getHostAddress(), "port", String.valueOf(port)));