/**
* Get email of user by user's id.
*
* @param userId user's id
* @return an email of user by user's id
*/
private String getEmailOfUser(long userId) {
try {
JCUser user = userService.get(userId);
return user.getEmail();
} catch (NotFoundException e) {
return null;
}
}
/** {@inheritDoc} */
@Override
public boolean isValid(String value, ConstraintValidatorContext context) {
if (value == null) {
// null emails checks are out of scope, pls use separate annotation for that
return true;
}
JCUser user = userService.getCurrentUser();
if (user.getEmail().equals(value)) {
return true; // no changes in an email, that's ok
} else {
User found = userDao.getByEmail(value);
return found == null;
}
}