/**
* Login user
*
* @param session session number
* @param address peer address used by user
* @param port port number used by user
* @param username username
* @param password password
* @return logged in user instance
*/
@Override
public User login(int session, String address, int port, String username, String password) {
// Check online status
if (onlineUserManager.isOnline(username)) {
System.err.println(ErrorType.ALREADY_ONLINE);
return null;
}
// Check password length
if (username == null || password == null || username.length() == 0 || password.length() == 0) {
System.err.println(ErrorType.BLANK_FIELD);
return null;
}
// Find user
PersistentUser user = PersistentUser.findUserByName(username);
// Check search result
if (user == null) {
return null;
}
// Verify password
if (!user.getPassword().equals(password)) {
return null;
}
// Set session parameters for user
user.setSession(session);
user.setAddress(address);
user.setPort(session + 2010);
return user;
}
/**
* Logout user based on username
*
* @param username username
*/
@Override
public void logout(String username) {
onlineUserManager.logout(username);
};
