if (loginUser.getRoles().stream().anyMatch(dto -> dto.equals(" SecurityDepartment")))

This code checks if the user who is currently logged in has the role of "SecurityDepartment". It does so by retrieving the roles of the user using the `getRoles()` method, which returns a list of role DTOs (Data Transfer Objects).

Then, it uses the `anyMatch()` method to check if any of the DTOs in the list match the given condition, which is to check if the role name is "SecurityDepartment". If any DTO matches this condition, then the code returns `true`, indicating that the user has the "SecurityDepartment" role. Otherwise, it returns `false`.

Overall, this code is used to determine if a user has a specific role, which can be used to control access to certain parts of an application or perform certain actions.