@Override
public void validate(Object target, Errors errors) {
UserModel userModel = (UserModel) target;
ValidationUtils.rejectIfEmptyOrWhitespace(errors, "username", FIELD_MANDATORY);
ValidationUtils.rejectIfEmptyOrWhitespace(errors, "firstName", FIELD_MANDATORY);
ValidationUtils.rejectIfEmptyOrWhitespace(errors, "lastName", FIELD_MANDATORY);
ValidationUtils.rejectIfEmptyOrWhitespace(errors, "email", FIELD_MANDATORY);
if (isSaveEvent(userModel)) {
ValidationUtils.rejectIfEmptyOrWhitespace(errors, "password", FIELD_MANDATORY);
}
invokeValidator(roleModelValidator, userModel.getRole(), "role", errors);
doFurtherValidation(userModel, errors);
}
private void doFurtherValidation(UserModel userModel, Errors errors) {
if (errors.hasErrors()) {
return;
}
if (isEmailInvalid(userModel.getEmail())) {
errors.rejectValue("email", "err.email");
}
final String username = userModel.getUsername();
Optional<UserModel> user = userService.findByUsername(username);
if (user.isPresent()) {
if (isSaveEvent(userModel)) {
errors.rejectValue("username", "err.username.exists");
} else if (isUpdateEvent(userModel) && !username.equals(user.get().getUsername())) {
errors.rejectValue("username", "err.username.exists");
}
}
}
private boolean isUpdateEvent(UserModel userModel) {
return UPDATE_EVENT.equals(userModel.getSubmitEvent());
}
private boolean isSaveEvent(UserModel userModel) {
return SAVE_EVENT.equals(userModel.getSubmitEvent());
}