public void delete(String id) {
   User user = userService.getById(id);
   Response r;
   if (user != null) {
     userService.deleteById(id);
   }
 }
 public void update(User user) {
   User u = userService.getById(user.getId());
   if (u != null) {
     u.setName(user.getName());
     u.setEmail(user.getEmail());
     userService.update(u);
   }
 }
 public void update(String id, String name, String email) {
   User user = new User();
   user.setId(id);
   user.setName(name);
   user.setEmail(email);
   userService.update(user);
 }
 public void delete(String id) {
   userService.deleteById(id);
 }
 public void create(String name, String email) {
   User user = new User();
   user.setName(name);
   user.setEmail(email);
   userService.create(user);
 }
 public List<User> getList() {
   return userService.getList();
 }
 public void addUser(User user) {
   userService.create(user);
 }
 public User get(String id) {
   return userService.getById(id);
 }
 public UserListOutputType getList() {
   UserListOutputType userListOutputType = new UserListOutputType();
   userListOutputType.getUser().addAll(userService.getList());
   return userListOutputType;
 }