Java tutorial
/** * openkm, Open Document Management System (http://www.openkm.com) * Copyright (c) 2006-2013 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 PUomOSE. 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.ikon.dao; import java.util.List; import org.hibernate.Hibernate; 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.ikon.core.DatabaseException; import com.ikon.dao.bean.Omr; public class OmrDAO { private static Logger log = LoggerFactory.getLogger(OmrDAO.class); private static OmrDAO single = new OmrDAO(); private OmrDAO() { } public static OmrDAO getInstance() { return single; } /** * Create */ public long create(Omr om) throws DatabaseException { log.debug("create({})", om); Session session = null; Transaction tx = null; try { session = HibernateUtil.getSessionFactory().openSession(); tx = session.beginTransaction(); Long id = (Long) session.save(om); HibernateUtil.commit(tx); log.debug("create: {}", id); return id; } catch (HibernateException e) { HibernateUtil.rollback(tx); throw new DatabaseException(e.getMessage(), e); } finally { HibernateUtil.close(session); } } /** * Update template */ public void updateTemplate(Omr om) throws DatabaseException { log.debug("updateTemplate({})", om); String qs = "select om.templateFileContent, om.templateFileName, templateFileMime, " + "om.ascFileContent, om.ascFileName, ascFileMime, " + "om.configFileContent, om.configFileName, configFileMime, " + "om.fieldsFileContent, om.fieldsFileName, fieldsFileMime " + "from Omr om where om.id=:id"; Session session = null; Transaction tx = null; try { session = HibernateUtil.getSessionFactory().openSession(); tx = session.beginTransaction(); Query q = session.createQuery(qs); q.setParameter("id", om.getId()); Object[] data = (Object[]) q.setMaxResults(1).uniqueResult(); if (om.getTemplateFileContent() == null || om.getTemplateFileContent().length == 0) { om.setTemplateFilContent((byte[]) data[0]); om.setTemplateFileName((String) data[1]); om.setTemplateFileMime((String) data[2]); } if (om.getAscFileContent() == null || om.getAscFileContent().length == 0) { om.setAscFileContent((byte[]) data[3]); om.setAscFileName((String) data[4]); om.setAscFileMime((String) data[5]); } if (om.getConfigFileContent() == null || om.getConfigFileContent().length == 0) { om.setConfigFileContent((byte[]) data[6]); om.setConfigFileName((String) data[7]); om.setConfigFileMime((String) data[8]); } if (om.getFieldsFileContent() == null || om.getFieldsFileContent().length == 0) { om.setFieldsFileContent((byte[]) data[9]); om.setFieldsFileName((String) data[10]); om.setFieldsFileMime((String) data[11]); } session.update(om); HibernateUtil.commit(tx); } catch (HibernateException e) { HibernateUtil.rollback(tx); throw new DatabaseException(e.getMessage(), e); } finally { HibernateUtil.close(session); } log.debug("updateTemplate: void"); } /** * Update */ public void update(Omr om) throws DatabaseException { log.debug("update({})", om); Session session = null; Transaction tx = null; try { session = HibernateUtil.getSessionFactory().openSession(); tx = session.beginTransaction(); session.update(om); HibernateUtil.commit(tx); } catch (HibernateException e) { HibernateUtil.rollback(tx); throw new DatabaseException(e.getMessage(), e); } finally { HibernateUtil.close(session); } log.debug("update: void"); } /** * Delete */ public void delete(long omId) throws DatabaseException { log.debug("delete({})", omId); Session session = null; Transaction tx = null; try { session = HibernateUtil.getSessionFactory().openSession(); tx = session.beginTransaction(); Omr om = (Omr) session.load(Omr.class, omId); session.delete(om); HibernateUtil.commit(tx); } catch (HibernateException e) { HibernateUtil.rollback(tx); throw new DatabaseException(e.getMessage(), e); } finally { HibernateUtil.close(session); } log.debug("delete: void"); } /** * Find by pk */ public Omr findByPk(long omId) throws DatabaseException { log.debug("findByPk({})", omId); String qs = "from Omr om where om.id=:id"; Session session = null; try { session = HibernateUtil.getSessionFactory().openSession(); Query q = session.createQuery(qs); q.setLong("id", omId); Omr ret = (Omr) q.setMaxResults(1).uniqueResult(); initializeOMR(ret); log.debug("findByPk: {}", ret); return ret; } catch (HibernateException e) { throw new DatabaseException(e.getMessage(), e); } finally { HibernateUtil.close(session); } } /** * Find by pk */ @SuppressWarnings("unchecked") public List<Omr> findAll() throws DatabaseException { log.debug("findAll()"); String qs = "from Omr om order by om.name"; Session session = null; try { session = HibernateUtil.getSessionFactory().openSession(); Query q = session.createQuery(qs); List<Omr> ret = q.list(); initializeOMR(ret); log.debug("findAll: {}", ret); return ret; } catch (HibernateException e) { throw new DatabaseException(e.getMessage(), e); } finally { HibernateUtil.close(session); } } /** * Find all active */ @SuppressWarnings("unchecked") public List<Omr> findAllActive() throws DatabaseException { log.debug("findAll()"); String qs = "from Omr om where om.active=:active order by om.name"; Session session = null; Transaction tx = null; try { session = HibernateUtil.getSessionFactory().openSession(); tx = session.beginTransaction(); Query q = session.createQuery(qs).setCacheable(true); q.setBoolean("active", true); List<Omr> ret = q.list(); HibernateUtil.commit(tx); log.debug("findAll: {}", ret); return ret; } catch (HibernateException e) { HibernateUtil.rollback(tx); throw new DatabaseException(e.getMessage(), e); } finally { HibernateUtil.close(session); } } /** * getProperties */ @SuppressWarnings("unchecked") public List<String> getProperties(long omId) throws DatabaseException { log.debug("getProperties({})", omId); String qs = "select om.properties from Omr om where om.id=:id"; Session session = null; try { session = HibernateUtil.getSessionFactory().openSession(); Query q = session.createQuery(qs); q.setLong("id", omId); List<String> ret = q.list(); log.debug("getProperties: {}", ret); return ret; } catch (HibernateException e) { throw new DatabaseException(e.getMessage(), e); } finally { HibernateUtil.close(session); } } /** * Force initialization of a proxy */ private void initializeOMR(List<Omr> omrList) { for (Omr oTemplate : omrList) { initializeOMR(oTemplate); } } /** * Force initialization of a proxy */ private void initializeOMR(Omr omr) { if (omr != null) { Hibernate.initialize(omr); Hibernate.initialize(omr.getProperties()); } } }