class LoginServiceImpl extends BaseRetrofitService<LoginRepository> implements org.unicef.rapidreg.service
        .LoginService {

    @Override
    public boolean isUsernameValid(String username) {
        return username != null && username.matches("\\A[^ ]+\\z");
    }

    public  LoginServiceImpl(ConnectivityManager connectivityManager,
                            TelephonyManager telephonyManager,
                            UserDao userDao);

}