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package dao.tools;
import java.util.Timer;
import java.util.TimerTask;
import org.hibernate.HibernateException;
import org.hibernate.Session;
import org.hibernate.SessionFactory;
import org.hibernate.cfg.Configuration;
/**
* Utility Class for Hibernate Connection
*
*/
public class CIRHibernateUtil
{
public static final ThreadLocal session = new ThreadLocal();
public static final Configuration config = new Configuration().configure();
private static final SessionFactory factory = config.buildSessionFactory();
// 3mn
private static long timeout = 180000;
/**
* Return current Hibernate Session for the user
* @return
* @throws HibernateException
*/
public static Session currentSession() throws HibernateException
{
return CIRHibernateUtil.currentSession(CIRHibernateUtil.timeout);
}
/**
* Return current Hibernate Session for the user
* @return
* @throws HibernateException
*/
public static Session currentSession(long timeout) throws HibernateException
{
Session s = null;
// Get session and timer bean
SessionTimerBean stb = (SessionTimerBean) session.get();
if(stb != null)
{
s = stb.getSession();
Timer timer = stb.getTimer();
SessionTimerTask stt = stb.getStt();
stt.cancel();
// If session is closed
if ((s == null)||(!s.isOpen()))
{
s = factory.openSession();
timer.cancel();
timer = new Timer();
stt = new CIRHibernateUtil().new SessionTimerTask();
// Create a timeout for session
timer.schedule(stt, timeout);
session.set(stb);
}
else
{
// Reset timeout for session
timer.cancel();
timer = new Timer();
stt = new CIRHibernateUtil().new SessionTimerTask();
// Create a timeout for session
timer.schedule(stt, timeout);
}
// Set Timer
stb.setTimer(timer);
}
else
{
s = factory.openSession();
Timer timer = new Timer();
SessionTimerTask stt = new CIRHibernateUtil().new SessionTimerTask();
timer.schedule(stt, timeout);
stb = new CIRHibernateUtil().new SessionTimerBean(s, timer, stt);
stt.setStb(stb);
session.set(stb);
}
return s;
}
/**
* Return a new Hibernate Session
* @return
* @throws HibernateException
*/
public static Session newSession() throws HibernateException
{
Session s = factory.openSession();
return s;
}
/**
* Close session of current user
*
*/
public static void closeSession()
{
SessionTimerBean stb = (SessionTimerBean) session.get();
if(stb != null)
{
Session s = stb.getSession();
Timer timer = stb.getTimer();
SessionTimerTask stt = stb.getStt();
if (s != null)
{
if(s.isOpen())
{
s.close();
timer.cancel();
stt.cancel();
}
}
CIRHibernateUtil.session.set(null);
}
}
/**
* Close session in parameter
* @param session
*/
public static void closeSession(Session session)
{
session.close();
}
/**
* Timeout Thread Class
*
*/
public class SessionTimerTask extends TimerTask
{
// Attributes
private SessionTimerBean stb;
/**
* Constructor
* @param stb : <code>SessionTimerBean</code>
*/
public SessionTimerTask()
{
super();
}
/**
* Method runned when time is up
* Close session
*/
public void run()
{
try
{
// If time is up, stop the process
if(this.stb != null)
{
Session session = this.stb.getSession();
Timer timer = this.stb.getTimer();
if(session != null)
{
if(session.isOpen())
{
System.out.println("close de service");
session.close();
timer.cancel();
this.cancel();
}
}
}
}
catch(Exception e)
{
e.printStackTrace();
}
}
/**
* @return the stb
*/
public SessionTimerBean getStb() {
return stb;
}
/**
* @param stb the stb to set
*/
public void setStb(SessionTimerBean stb) {
this.stb = stb;
}
}
/**
* Bean class used to store a Session and the Timeout thread
*
*/
public class SessionTimerBean
{
// Attributes
private Session session;
private Timer timer;
private SessionTimerTask stt;
/**
* Constructor
* @param session
* @param timer
* @param stt
*/
public SessionTimerBean(Session session, Timer timer, SessionTimerTask stt)
{
super();
this.session = session;
this.timer = timer;
this.stt = stt;
}
/**
* @return the session
*/
public Session getSession() {
return session;
}
/**
* @return the stt
*/
public SessionTimerTask getStt() {
return stt;
}
/**
* @return the timer
*/
public Timer getTimer() {
return timer;
}
/**
* @param session the session to set
*/
public void setSession(Session session) {
this.session = session;
}
/**
* @param stt the stt to set
*/
public void setStt(SessionTimerTask stt) {
this.stt = stt;
}
/**
* @param timer the timer to set
*/
public void setTimer(Timer timer) {
this.timer = timer;
}
}
} |
Gestion des sessions Hibernate
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