Package vaultWeb.services

Class UserService

java.lang.Object

vaultWeb.services.UserService

@Service
public class UserService
extends Object

Service class for managing users.

Provides functionality for user registration, checking for existing usernames, and retrieving all users. Passwords are securely encoded before storing.

Constructor Summary

Constructors

Constructor	Description
UserService()

Method Summary

Modifier and Type	Method	Description
List<User>	getAllUsers()	Retrieves a list of all registered users.
void	registerUser(User user)	Registers a new user by encoding their password and assigning the default role.
boolean	usernameExists(String username)	Checks if a username already exists in the database.

Methods inherited from class java.lang.Object

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

Constructor Details

UserService

public UserService()

Method Details

registerUser

public void registerUser(User user)

Registers a new user by encoding their password and assigning the default role.

Steps performed by this method:

1. Check if the username already exists in the database. If so, throw DuplicateUsernameException.
2. Encode the plaintext password using the injected PasswordEncoder.
3. Save the user entity with the hashed password to the database via UserRepository.

Important: - The PasswordEncoder bean must match the encoder used during authentication to correctly verify passwords.

Parameters:

user - The User entity containing username and plaintext password.

Throws:

DuplicateUsernameException - if a user with the same username already exists.

usernameExists

public boolean usernameExists(String username)

Checks if a username already exists in the database.

Parameters:

username - The username to check.

Returns:

true if the username exists, false otherwise.

getAllUsers

public List<User> getAllUsers()

Retrieves a list of all registered users.

Returns:

A List of User entities.