Role adminRole = RoleFactory.createRole("Admin"); Role userRole = RoleFactory.createRole("User"); adminRole.addUser("admin"); userRole.addUser("user1"); userRole.addUser("user2"); adminRole.addPermission("adminPanel"); userRole.addPermission("viewProfile"); boolean isAdmin = adminRole.hasPermission("adminPanel", "admin"); boolean canViewProfile = userRole.hasPermission("viewProfile", "user2"); Authenticator authenticator = new TokenAuthenticator(); boolean isAuthenticated = authenticator.authenticate("username", "password"); Authorizer authorizer = new RBACAuthorizer(); boolean isAuthorized = authorizer.authorize("adminPanel", "Admin"); boolean canAccessResource = isAuthenticated && isAuthorized; AuditLogger auditLogger = new FileAuditLogger("/path/to/log/file"); auditLogger.log("user1", "viewProfile"); auditLogger.log("admin", "adminPanel");