/*
* JBoss, Home of Professional Open Source
* Copyright 2013, Red Hat, Inc. and individual contributors
* by the @authors tag. See the copyright.txt in the distribution for a
* full listing of individual contributors.
*
* This is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 2.1 of
* the License, or (at your option) any later version.
*
* This software is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this software; if not, write to the Free
* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA, or see the FSF site: http://www.fsf.org.
*/
package org.richfaces.photoalbum.model.actions;
import javax.ejb.Stateless;
import javax.inject.Inject;
import javax.persistence.EntityManager;
import org.richfaces.photoalbum.manager.UserBean;
import org.richfaces.photoalbum.model.User;
import org.richfaces.photoalbum.util.Constants;
import org.richfaces.photoalbum.util.PhotoAlbumException;
/**
* Class for manipulating with user entity. Analogous to DAO pattern. EJB3 Bean
*
* @author Andrey Markhel
*/
@Stateless
public class UserAction implements IUserAction {
@Inject
EntityManager em;
@Inject
UserBean userBean;
//private User user;
/**
* Login user. If succes return logged user, otherwise return null
*
* @param username - username
* @param password - password
* @return user if success
*/
// public User login(String username, String password) {
// // new
// User user = (User) em.createNamedQuery(Constants.USER_LOGIN_QUERY).setParameter(Constants.USERNAME_PARAMETER, username)
// .setParameter(Constants.PASSWORD_PARAMETER, password).getSingleResult();
// return user;
// }
/**
* Persist user entity to database
*
* @param user - user to register
* @throws PhotoAlbumException
*/
public void register(User user) throws PhotoAlbumException {
try {
em.persist(user);
em.flush();
} catch (Exception e) {
throw new PhotoAlbumException(e.getMessage());
}
}
/**
* Synchronize state of user entity with database
*
* @return user if success
* @throws PhotoAlbumException
*/
public User updateUser(User user) throws PhotoAlbumException {
try {
em.merge(user);
em.flush();
} catch (Exception e) {
throw new PhotoAlbumException(e.getMessage());
}
userBean.refreshUser();
return userBean.getUser();
}
/**
* Refresh state of user entity with database
*
* @Param user - user to refresh
* @return user if success
* @throws PhotoAlbumException
*/
public User refreshUser() {
User user = em.find(User.class, userBean.getUser().getId());
em.refresh(user);
return user;
}
/**
* Check if user with specified login already exist
*
* @return is user with specified login already exist
*/
public boolean isUserExist(String login) {
return em.createNamedQuery(Constants.USER_EXIST_QUERY).setParameter(Constants.LOGIN_PARAMETER, login).getResultList()
.size() != 0;
}
/**
* Check if user with specified email already exist
*
* @return is user with specified email already exist
*/
public boolean isEmailExist(String email) {
return em.createNamedQuery(Constants.EMAIL_EXIST_QUERY).setParameter(Constants.EMAIL_PARAMETER, email).getResultList()
.size() != 0;
}
}