it.geosolutions.geobatch.users.dao.hibernate.HibGBUserDAO.java Source code

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Here is the source code for it.geosolutions.geobatch.users.dao.hibernate.HibGBUserDAO.java

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/*
 * $Header: it.geosolutions.geobatch.ftp.server.dao.hibernate.HibGBUserDAO,v. 0.1 13/ott/2009 10.02.48 created by giuseppe $
 * $Revision: 0.1 $
 * $Date: 13/ott/2009 10.02.48 $
 *
 * ====================================================================
 *
 * Copyright (C) 2007-2008 GeoSolutions S.A.S.
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program 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 General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program. 
 *
 * ====================================================================
 *
 * This software consists of voluntary contributions made by developers
 * of GeoSolutions.  For more information on GeoSolutions, please see
 * <http://www.geo-solutions.it/>.
 *
 */
package it.geosolutions.geobatch.users.dao.hibernate;

import it.geosolutions.geobatch.users.dao.DAOException;
import it.geosolutions.geobatch.users.dao.GBUserDAO;
import it.geosolutions.geobatch.users.model.GBUser;
import it.geosolutions.geobatch.users.model.GBUserRole;

import java.sql.SQLException;
import java.util.List;

import org.hibernate.HibernateException;
import org.hibernate.Query;
import org.hibernate.Session;
import org.hibernate.criterion.Restrictions;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.InitializingBean;
import org.springframework.orm.hibernate3.HibernateCallback;
import org.springframework.transaction.annotation.Propagation;
import org.springframework.transaction.annotation.Transactional;

/**
 * 
 */
public class HibGBUserDAO extends DAOAbstractSpring<GBUser, Long> implements GBUserDAO, InitializingBean {

    private final static Logger LOGGER = LoggerFactory.getLogger(HibGBUserDAO.class.getName());

    public HibGBUserDAO() {
        super(GBUser.class);
    }

    /**
     * Creates the default admin if no admin user is found.
     * 
     * @throws Exception
     */
    protected void initDao() throws Exception {
        super.initDao();

        if (!existsAdmin()) {
            LOGGER.info("Admin user does not exist. Creating default one.");
            GBUser user = new GBUser();
            user.setName("admin");
            user.setPassword("admin");
            user.setEnabled(true);
            user.setRole(GBUserRole.ROLE_ADMIN);
            save(user);
        }
    }

    @Transactional(propagation = Propagation.SUPPORTS)
    public GBUser findByUserId(Long userId) throws DAOException {
        return (GBUser) getHibernateTemplate().get(GBUser.class, userId);
    }

    @Transactional(propagation = Propagation.SUPPORTS)
    public GBUser findByUserName(String userName) throws DAOException {
        List<GBUser> users = super.findByCriteria(Restrictions.eq("name", userName));
        if (users.size() > 0)
            return users.get(0);
        return null;
    }

    public boolean existsAdmin() throws DAOException {
        List<GBUser> users = super.findByCriteria(Restrictions.eq("role", GBUserRole.ROLE_ADMIN));
        return !users.isEmpty();
    }

    @Transactional(propagation = Propagation.REQUIRED)
    public void delete(final Long id) throws DAOException {
        try {

            getHibernateTemplate().execute(new HibernateCallback() {

                public Object doInHibernate(Session session) throws HibernateException, SQLException {
                    Query query = session.createQuery("delete from User user where user.id = :id");
                    query.setParameter("id", id);
                    query.executeUpdate();
                    return null;
                }
            });
        } catch (HibernateException e) {
            throw new DAOException(e);
        }
    }

    @Transactional(propagation = Propagation.REQUIRED)
    public void delete(GBUser ftpUser) throws DAOException {
        super.makeTransient(ftpUser);
    }

    @Transactional(propagation = Propagation.REQUIRED)
    public GBUser save(GBUser ftpUser) throws DAOException {
        return super.makePersistent(ftpUser);
    }

}