es.uvigo.esei.dgss.teama.letta.ejb

Class UserEJB

java.lang.Object

es.uvigo.esei.dgss.teama.letta.ejb.UserEJB

@RolesAllowed(value="RegisteredUser")
public class UserEJB
extends Object

This class contains the logic of user management.

Author:

Santi Cofán

Constructor Summary

Constructors

Constructor and Description
UserEJB()

Method Summary

Modifier and Type	Method and Description
es.uvigo.esei.dgss.teama.letta.entities.Event	attendToEvent(int eventId) Attend an event by an user
boolean	checkEventAtendance(es.uvigo.esei.dgss.teama.letta.entities.Event event) Checks if the authenticated user is already attending the given event.
boolean	checkIsCreator(es.uvigo.esei.dgss.teama.letta.entities.Event event) Checks if the authenticated user is the given event creator.
es.uvigo.esei.dgss.teama.letta.entities.User	confirmRegistration(String t) Confirms a pre-registered user through the given token.
es.uvigo.esei.dgss.teama.letta.entities.User	findByLoginAndPassword(String user, String password) Gets the user from the database with the given login and password
es.uvigo.esei.dgss.teama.letta.entities.User	findByName(String login) Gets the user from the database with the given login
boolean	isRegistered(String login) Checks if the given user login is registered in the system.
es.uvigo.esei.dgss.teama.letta.entities.User	loggingUser() Return the user logged
void	preRegistration(es.uvigo.esei.dgss.teama.letta.entities.User user) Generates a verification token used to confirm the registration later.
es.uvigo.esei.dgss.teama.letta.entities.Event	unAttendToEvent(int eventId) Unattend an event by an user

Methods inherited from class java.lang.Object

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

Constructor Detail

UserEJB

public UserEJB()

Method Detail

isRegistered

@PermitAll
public boolean isRegistered(String login)

Checks if the given user login is registered in the system.

Parameters:

login - login of the user.

Returns:

true if the given login is registered.

See Also:

User

preRegistration

@PermitAll
public void preRegistration(es.uvigo.esei.dgss.teama.letta.entities.User user)
                                throws javax.mail.MessagingException

Generates a verification token used to confirm the registration later. The generated token will be an UUID that will be sent to user mail box. The user will have to send this token to system to confirm the registration via email. If the user is already registered, this method throws an InvalidParameterException.

Parameters:

user - the user that will be pre-registered.

Throws:

javax.mail.MessagingException - when an error to send message is produced.

See Also:

User, VerificationToken, confirmRegistration(String)

confirmRegistration

@PermitAll
public es.uvigo.esei.dgss.teama.letta.entities.User confirmRegistration(String t)

Confirms a pre-registered user through the given token. This method checks if the given token is valid and, finally, registers the user (associated with the given token).

Parameters:

t - the VerificationToken id.

Returns:

the registered user.

Throws:

InvalidParameterException - when the given token is not valid.

loggingUser

@PermitAll
public es.uvigo.esei.dgss.teama.letta.entities.User loggingUser()

Return the user logged

Returns:

User logged

findByName

@PermitAll
public es.uvigo.esei.dgss.teama.letta.entities.User findByName(String login)

Gets the user from the database with the given login

Parameters:

login - a string with the user's login

Returns:

User with the given login

attendToEvent

@PermitAll
public es.uvigo.esei.dgss.teama.letta.entities.Event attendToEvent(int eventId)
                                                                       throws LettaIllegalArgumentException

Attend an event by an user

Parameters:

eventId - the event to attend

Returns:

Event attended

Throws:

LettaIllegalArgumentException - if event is empty or user is already attending the event

unAttendToEvent

public es.uvigo.esei.dgss.teama.letta.entities.Event unAttendToEvent(int eventId)
                                                              throws LettaIllegalArgumentException

Unattend an event by an user

Parameters:

eventId - the id of event to unfollow

Returns:

event unattended

Throws:

LettaIllegalArgumentException - if event is not found

checkEventAtendance

@PermitAll
public boolean checkEventAtendance(es.uvigo.esei.dgss.teama.letta.entities.Event event)
                                       throws LettaIllegalArgumentException

Checks if the authenticated user is already attending the given event.

Parameters:

event - event to attend.

Returns:

true if the logged user is already attending the given event

Throws:

LettaIllegalArgumentException - if the given event is null

checkIsCreator

@PermitAll
public boolean checkIsCreator(es.uvigo.esei.dgss.teama.letta.entities.Event event)
                                  throws LettaIllegalArgumentException

Checks if the authenticated user is the given event creator.

Parameters:

event - event to check its creator.

Returns:

true if the logged user is the creator of the given event

Throws:

LettaIllegalArgumentException - if the given event is null

findByLoginAndPassword

@PermitAll
public es.uvigo.esei.dgss.teama.letta.entities.User findByLoginAndPassword(String user,
                                                                                      String password)

Gets the user from the database with the given login and password

Parameters:

user - a string with the user's login

password - a string with the user's password

Returns:

User with the given login