/**
 * @Package: com.scap.servers.scapserver.ejb 
 * @CreateDate Apr 15, 2005
 * @Creator eha
 *
 * TODO Add more info
 */
package com.scap.servers.scapserver.ejb;

import java.io.Serializable;
import java.rmi.RemoteException;
import java.util.Collection;
import java.util.Iterator;
import java.util.logging.Logger;

import javax.ejb.CreateException;
import javax.ejb.EJBException;
import javax.ejb.SessionBean;
import javax.ejb.SessionContext;
import javax.ejb.TimedObject;
import javax.ejb.Timer;

/**
 * XDoclet-based session bean.  The class must be declared
 * public according to the EJB specification.
 *
 * To generate the EJB related files to this EJB:
 *		- Add Standard EJB module to XDoclet project properties
 *		- Customize XDoclet configuration for your appserver
 *		- Run XDoclet
 *
 * Below are the xdoclet-related tags needed for this EJB.
 * 
 * @ejb.bean name="TimerTest"
 *           display-name="Name for TimerTest"
 *           description="Description for TimerTest"
 *           jndi-name="ejb/TimerTest"
 *           type="Stateless"
 *           view-type="both"
 * 
 * @ejb.transaction type = "NotSupported"
 */
public class TimerTestBean implements SessionBean, TimedObject
{

    /** The session context */
    private SessionContext m_context;
    private Logger m_log = Logger.getLogger(TimerTestBean.class.getName());

    /**
     * 
     */
    public TimerTestBean()
    {
        super();
        // TODO Auto-generated constructor stub
    }

    /**
     * Set the associated session context. The container calls this method 
     * after the instance creation.
     * 
     * The enterprise bean instance should store the reference to the context 
     * object in an instance variable.
     * 
     * This method is called with no transaction context. 
     * 
     * @throws EJBException Thrown if method fails due to system-level error.
     */
    public void setSessionContext(SessionContext newContext) throws EJBException
    {
        m_context = newContext;
    }

    /* (non-Javadoc)
     * @see javax.ejb.SessionBean#ejbRemove()
     */
    public void ejbRemove() throws EJBException, RemoteException
    {
        // TODO Auto-generated method stub

    }

    /* (non-Javadoc)
     * @see javax.ejb.SessionBean#ejbActivate()
     */
    public void ejbActivate() throws EJBException, RemoteException
    {
        // TODO Auto-generated method stub

    }

    /* (non-Javadoc)
     * @see javax.ejb.SessionBean#ejbPassivate()
     */
    public void ejbPassivate() throws EJBException, RemoteException
    {
        // TODO Auto-generated method stub

    }

    /**
     * An ejbCreate method as required by the EJB specification.
     * 
     * The container calls the instance?s <code>ejbCreate</code> method whose
     * signature matches the signature of the <code>create</code> method invoked
     * by the client. The input parameters sent from the client are passed to
     * the <code>ejbCreate</code> method. Each session bean class must have at
     * least one <code>ejbCreate</code> method. The number and signatures
     * of a session bean?s <code>create</code> methods are specific to each 
     * session bean class.
     * 
     * @throws CreateException Thrown if method fails due to system-level error.
     * 
     * @ejb.create-method
     * 
     */
    public void ejbCreate() throws CreateException
    {
        // TODO Add ejbCreate method implementation
    }

    private void startTimer(Serializable info)
    {
        m_log.info("Starting timer. Info="+info);
        m_context.getTimerService().createTimer(10000,info);
    }
    
    /**
     * @ejb.interface-method
     * @ejb.transaction type = "Required"
     * @throws EJBException Thrown if method fails due to system-level error.
     */
    public void startTimerInTxRequired() throws EJBException
    {
        startTimer("Required");
    }
    
    /**
     * @ejb.interface-method
     * @ejb.transaction type = "RequiresNew"
     * @throws EJBException Thrown if method fails due to system-level error.
     */
    public void startTimerInTxRequiresNew() throws EJBException
    {
        startTimer("Required");
    }
    /**
     * @ejb.interface-method
     * @ejb.transaction type = "Never"
     * @throws EJBException Thrown if method fails due to system-level error.
     */
    public void startTimerInTxNever() throws EJBException
    {
        startTimer("Never");
    }
    
    /**
     * @ejb.interface-method
     * @ejb.transaction type = "NotSupported"
     * @throws EJBException Thrown if method fails due to system-level error.
     */
    public void startTimerInTxNotSupported() throws EJBException
    {
        startTimer("NotSupported");
    }
    
    private void cancelTimers()
    {
        Collection timers = m_context.getTimerService().getTimers();
        for (Iterator it = timers.iterator();it.hasNext();)
        {
            Timer t = (Timer)it.next();
            m_log.info("Cancelling timer"+t+" "+t.getInfo());
            t.cancel();
            m_log.info("Timer is now"+t);
        }   
    }
    
    /**
     * @ejb.interface-method 
     */
    public int listAllTimers()
    {
        Collection timers = m_context.getTimerService().getTimers();
        String s="Timers:";
        for (Iterator it = timers.iterator();it.hasNext();)
        {
            Timer t = (Timer)it.next();            
            s = s +t.toString() + " ";
            try
            {
                s += t.getInfo();
            }
            catch (Exception e)
            {
                
            }
            s+="\n";
        }
        m_log.info(s);
        return timers.size();
    }
    /**
     * @ejb.interface-method
     * @ejb.transaction type = "Required"
     * @throws EJBException Thrown if method fails due to system-level error.
     */
    public void cancelTimerInTxRequired() throws EJBException
    {
       cancelTimers();
    }
    
    /**
     * @ejb.interface-method
     * @ejb.transaction type = "RequiresNew"
     * @throws EJBException Thrown if method fails due to system-level error.
     */
    public void cancelTimerInTxRequiresNew() throws EJBException
    {
        cancelTimers();
    }
    /**
     * @ejb.interface-method
     * @ejb.transaction type = "Never"
     * @throws EJBException Thrown if method fails due to system-level error.
     */
    public void cancelTimerInTxNever() throws EJBException
    {
        cancelTimers();
    }
    
    /**
     * @ejb.interface-method
     * @ejb.transaction type = "NotSupported"
     * @throws EJBException Thrown if method fails due to system-level error.
     */
    public void cancelTimerInTxNotSupported() throws EJBException
    {
        cancelTimers();
    }
    
    /* (non-Javadoc)
     * @see javax.ejb.TimedObject#ejbTimeout(javax.ejb.Timer)
     */
    public void ejbTimeout(Timer timer)
    {
       m_log.info("ejbTimeout:"+timer);               
    }

}