Package com.example.demo.registration

Class RegistrationService

java.lang.Object

com.example.demo.registration.RegistrationService

@Service
public class RegistrationService
extends Object

Service class that handles the user registration process. It handles input validation, user account creation, generating and persisting confirmation tokens, and sending the verification email.

Constructor Summary

Constructors

Constructor	Description
RegistrationService()

Method Summary

Modifier and Type	Method	Description
String	confirmToken(String token)	Confirms the account registration using a valid token.
String	register(RegistrationRequest request)	Processes a new user registration request.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

RegistrationService

public RegistrationService()

Method Details

register

public String register(RegistrationRequest request)

Processes a new user registration request.

1. Validates the email format. 2. Creates and saves the new AppUser with a default role (USER). 3. Generates a unique confirmation token. 4. Sends a confirmation email to the user.

Parameters:

request - The RegistrationRequest DTO containing user details.

Returns:

The unique confirmation token string.

Throws:

IllegalStateException - if the email format is invalid.

confirmToken

public String confirmToken(String token)

Confirms the account registration using a valid token.

1. Retrieves the ConfirmationToken. 2. Checks if the token is already confirmed or expired. 3. If valid, updates the token's confirmedAt timestamp. 4. Enables the associated AppUser account.

Parameters:

token - The confirmation token string provided by the user.

Returns:

A string literal "confirmed" upon successful account activation.

Throws:

IllegalStateException - if the token is not found, already confirmed, or expired.