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package com.sun.s1asdev.ejb.timer.restore;
import java.util.Iterator;
import java.util.Collection;
import java.util.Date;
import javax.ejb.TimedObject;
import javax.ejb.Timer;
import javax.ejb.TimerHandle;
import javax.ejb.TimerService;
import javax.ejb.SessionBean;
import javax.ejb.SessionContext;
import javax.ejb.EJBContext;
import javax.ejb.EJBException;
import javax.jms.Session;
import java.rmi.RemoteException;
import javax.jms.QueueConnectionFactory;
import javax.jms.QueueConnection;
import javax.jms.Queue;
import javax.jms.QueueSender;
import javax.jms.QueueSession;
import javax.jms.JMSException;
import javax.jms.TextMessage;
import javax.naming.*;
import com.sun.ejb.containers.TimerBean;
public class TimerSessionEJB implements TimedObject, SessionBean
{
private SessionContext context;
private QueueConnection connection;
private QueueSession session;
private Queue queue;
private QueueSender sender;
public void ejbCreate() throws RemoteException {}
public void ejbRemove() throws RemoteException {}
public void setSessionContext(SessionContext sc) {
context = sc;
}
// business method to create a timer
public TimerHandle createTimer(long initialDelay, long interval,
String msg) {
try {
System.out.println("Calling getMessageContext");
context.getMessageContext();
} catch(IllegalStateException ise) {
System.out.println("getMessageContext() successfully threw illegalStateException");
}
TimerService timerService = context.getTimerService();
Timer timer;
if( interval == 0 ) {
timer = timerService.createTimer(initialDelay, msg);
} else {
timer = timerService.createTimer(initialDelay, interval,
msg);
}
return timer.getHandle();
}
public void createTimerInOtherServer(String owner, String timerId,
long initialExpiration,
long intervalDuration, String info) {
try {
Date now = new Date();
TimerBean.testCreate(timerId, context, owner,
new Date(now.getTime() + initialExpiration),
intervalDuration,
info);
} catch(Exception e) {
e.printStackTrace();
throw new EJBException(e);
}
}
public void migrateTimersFrom(String owner) {
TimerBean.testMigrate(owner);
}
public void deleteTimers() {
java.util.Collection timers = context.getTimerService().getTimers();
for(Iterator iter = timers.iterator(); iter.hasNext();) {
Timer t = (Timer) iter.next();
System.out.println("Cancelling timer " + t);
t.cancel();
}
}
// timer callback method
public void ejbTimeout(Timer timer) {
String info = (String) timer.getInfo();
System.out.println("Got ejbTimeout for timer " + info);
try {
System.out.println("Calling getMessageContext");
context.getMessageContext();
} catch(IllegalStateException ise) {
System.out.println("getMessageContext() successfully threw illegalStateException");
}
// add message to queue
try {
InitialContext ic = new InitialContext();
QueueConnectionFactory qcFactory = (QueueConnectionFactory)
ic.lookup("java:comp/env/jms/MyQueueConnectionFactory");
Queue queue = (Queue) ic.lookup("java:comp/env/jms/MyQueue");
connection = qcFactory.createQueueConnection();
QueueSession session = connection.createQueueSession(true, Session.AUTO_ACKNOWLEDGE);
sender = session.createSender(queue);
TextMessage message = session.createTextMessage();
message.setText(info);
System.out.println("Sending time out message");
sender.send(message);
System.out.println("Time out message sent");
} catch(NamingException e) {
e.printStackTrace();
} catch(JMSException e) {
e.printStackTrace();
}
finally {
try {
if(connection != null) {
connection.close();
connection = null;
}
} catch(Exception e) {
e.printStackTrace();
}
}
}
public void ejbActivate() {}
public void ejbPassivate() {}
}