LanguageDAO.java

/**
 *  OpenKM, Open Document Management System (http://www.openkm.com)
 *  Copyright (c) 2006-2011  Paco Avila & Josep Llort
 *
 *  No bytes were intentionally harmed during the development of this application.
 *
 *  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; if not, write to the Free Software Foundation, Inc.,
 *  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 */

package com.openkm.dao;

import java.util.List;

import org.hibernate.HibernateException;
import org.hibernate.Query;
import org.hibernate.Session;
import org.hibernate.Transaction;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import com.openkm.core.DatabaseException;
import com.openkm.core.RepositoryException;
import com.openkm.dao.bean.Language;

/**
 * LanguageDAO
 * 
 * @author jllort
 *
 */
public class LanguageDAO {
	private static Logger log = LoggerFactory.getLogger(LanguageDAO.class);

	private LanguageDAO() {}
	
	/**
	 * Find translations by pk
	 */
	public static Language findByPk(String id) throws DatabaseException {
		log.debug("findByPk({})", id);
		String qs = "from Language lg where lg.id=:id";
		Session session = null;
		
		try {
			session = HibernateUtil.getSessionFactory().openSession();
			Query q = session.createQuery(qs);
			q.setString("id", id);
			Language ret = (Language) q.setMaxResults(1).uniqueResult();
			log.debug("findByPk: {}", ret);
			return ret;
		} catch (HibernateException e) {
			throw new DatabaseException(e.getMessage(), e);
		} finally {
			HibernateUtil.close(session);
		}
	}
	
	/**
	 * Find all languages
	 */
	@SuppressWarnings("unchecked")
	public static List<Language> findAll() throws DatabaseException, RepositoryException {
		log.debug("findAll({})");
		String qs = "from Language lg order by lg.name asc";		
		Session session = null;
		Transaction tx = null;
		
		try {
			session = HibernateUtil.getSessionFactory().openSession();
			Query q = session.createQuery(qs);
			List<Language> ret = q.list();
			log.debug("findAll: {}", ret);
			return ret;
		} catch (HibernateException e) {
			HibernateUtil.rollback(tx);
			throw new DatabaseException(e.getMessage(), e);
		} finally {
			HibernateUtil.close(session);
		}
	}	
	
	/**
	 * Delete
	 */
	public static void delete(String id) throws DatabaseException {
		log.debug("delete({})", id);
		Session session = null;
		Transaction tx = null;
		
		try {
			session = HibernateUtil.getSessionFactory().openSession();
			tx = session.beginTransaction();
			Language lang = (Language) session.load(Language.class, id);
			session.delete(lang);
			HibernateUtil.commit(tx);
		} catch (HibernateException e) {
			HibernateUtil.rollback(tx);
			throw new DatabaseException(e.getMessage(), e);
		} finally {
			HibernateUtil.close(session);
		}
		
		log.debug("delete: void");
	}
	
	/**
	 * Update language in database
	 */
	public static void update(Language lang) throws DatabaseException {
		log.debug("update({})", lang);
		Session session = null;
		Transaction tx = null;
		
		try {
			session = HibernateUtil.getSessionFactory().openSession();
			tx = session.beginTransaction();
			session.update(lang);
			HibernateUtil.commit(tx);
		} catch (HibernateException e) {
			HibernateUtil.rollback(tx);
			throw new DatabaseException(e.getMessage(), e);
		} finally {
			HibernateUtil.close(session);
		}
		log.debug("update: void");
	}
	
	/**
	 * Create language in database
	 */
	public static void create(Language lang) throws DatabaseException {
		log.debug("create({})", lang);
		Session session = null;
		Transaction tx = null;
		
		try {
			session = HibernateUtil.getSessionFactory().openSession();
			tx = session.beginTransaction();
			session.save(lang);
			HibernateUtil.commit(tx);
		} catch (HibernateException e) {
			HibernateUtil.rollback(tx);
			throw new DatabaseException(e.getMessage(), e);
		} finally {
			HibernateUtil.close(session);
		}
		log.debug("create: void");
	}
}