Kishore Chandran :
I have already written the code, but the thing is I feel there could be better way to write the below code,
This must be possible only from Java 8
private User getUser(String userId) {
Optional<User> optionalUser = userDAO.getUserById(userId);
if(optionalUser.isPresent())
return optionalUser.get();
throw new UserDefinedException("User not present");
}
I expect to write the above in one line
Eran :
You can use orElseThrow
, which will return the value if present or throw the specified exception if not:
private User getUser(String userId) {
return userDAO.getUserById(userId)
.orElseThrow(() -> new UserDefinedException("User not present"));
}