User: slaboure
Date: 01/12/31 07:18:43
Added: src/main/org/jboss/ha/httpsession/ejb
ClusteredHTTPSessionBeanAbstract.java
ClusteredHTTPSessionBeanCmp11.java
ClusteredHTTPSessionBeanImpl.java
Log:
ClusteredHTTPSession EB implementation
Revision Changes Path
1.1
jbossmx/src/main/org/jboss/ha/httpsession/ejb/ClusteredHTTPSessionBeanAbstract.java
Index: ClusteredHTTPSessionBeanAbstract.java
===================================================================
/*
* JBoss, the OpenSource J2EE webOS
*
* Distributable under LGPL license.
* See terms of license at gnu.org.
*/
package org.jboss.ha.httpsession.ejb;
import javax.ejb.CreateException;
import javax.ejb.EJBException;
import javax.ejb.RemoveException;
import java.rmi.RemoteException;
import java.io.Serializable;
import org.jboss.ha.httpsession.interfaces.ClusteredHTTPSessionBusiness;
import org.jboss.ha.httpsession.interfaces.ClusteredHTTPSession;
import org.jboss.ha.httpsession.interfaces.SerializableHttpSession;
/**
* Abstract default implementation of the Clustered HTTP session for servlets.
*
* @see org.jboss.ha.httpsession.interfaces.ClusteredHTTPSession
* @see org.jboss.ha.httpsession.interfaces.ClusteredHTTPSessionBusiness
* @see org.jboss.ha.httpsession.interfaces.ClusteredHTTPSessionHome
*
* @author <a href="mailto:[EMAIL PROTECTED]";>Sacha Labourey</a>.
* @version $Revision: 1.1 $
*
* <p><b>Revisions:</b>
*
* <p><b>31. d�cembre 2001 Sacha Labourey:</b>
* <ul>
* <li> First implementation </li>
* </ul>
*/
public abstract class ClusteredHTTPSessionBeanAbstract implements
javax.ejb.EntityBean, ClusteredHTTPSessionBusiness
{
// Constants -----------------------------------------------------
// Attributes ----------------------------------------------------
protected javax.ejb.EntityContext ejbContext;
// Static --------------------------------------------------------
// Constructors --------------------------------------------------
// Public --------------------------------------------------------
public ClusteredHTTPSession ejbCreate (String sessionId) throws CreateException
{
this.setSessionId (sessionId);
return null;
}
public void ejbPostCreate (String sessionId) throws CreateException
{}
public ClusteredHTTPSession ejbCreate (String sessionId, SerializableHttpSession
session) throws CreateException
{
this.setSessionId (sessionId);
this.setSession (session);
return null;
}
public void ejbPostCreate (String sessionId, SerializableHttpSession session)
throws CreateException
{}
// Optimisation: called by the CMP engine
//
public abstract boolean isModified ();
// EntityBean implementation ----------------------------------------------
public void ejbStore () throws EJBException, RemoteException
{}
public void ejbActivate () throws EJBException, RemoteException
{}
public void ejbPassivate () throws EJBException, RemoteException
{}
public void ejbLoad () throws EJBException, RemoteException
{}
public void setEntityContext (javax.ejb.EntityContext ctx)
{
ejbContext = ctx;
}
public void ejbRemove () throws RemoveException, EJBException, RemoteException
{}
public void unsetEntityContext ()
{
ejbContext = null;
}
// ClusteredHTTPSessionBusiness implementation
----------------------------------------------
public abstract String getSessionId ();
public abstract void setSessionId (String sessionId);
public abstract Serializable getSerializedSession ();
public abstract void setSerializedSession (Serializable session);
public abstract long getLastAccessedTime ();
public abstract void setLastAccessedTime (long value);
public abstract long getCreationTime ();
public abstract void setCreationTime (long value);
// This field is not directly stored by the CMP engine
//
public abstract SerializableHttpSession getSession () throws EJBException;
public abstract void setSession (SerializableHttpSession session);
// Y overrides ---------------------------------------------------
// Package protected ---------------------------------------------
// Protected -----------------------------------------------------
protected javax.ejb.EntityContext getEntityContext ()
{
return ejbContext;
}
// Private -------------------------------------------------------
// Inner classes -------------------------------------------------
}
1.1
jbossmx/src/main/org/jboss/ha/httpsession/ejb/ClusteredHTTPSessionBeanCmp11.java
Index: ClusteredHTTPSessionBeanCmp11.java
===================================================================
/*
* JBoss, the OpenSource J2EE webOS
*
* Distributable under LGPL license.
* See terms of license at gnu.org.
*/
package org.jboss.ha.httpsession.ejb;
import java.io.Serializable;
/**
* CMP 1.1 concrete implementation for the HTTPSession bean.
*
* @see org.jboss.ha.httpsession.interfaces.ClusteredHTTPSession
* @see org.jboss.ha.httpsession.ejb.ClusteredHTTPSessionBeanImpl
*
* @author <a href="mailto:[EMAIL PROTECTED]";>Sacha Labourey</a>.
* @version $Revision: 1.1 $
*
* <p><b>Revisions:</b>
*
* <p><b>31. d�cembre 2001 Sacha Labourey:</b>
* <ul>
* <li> First implementation </li>
* </ul>
*/
public class ClusteredHTTPSessionBeanCmp11 extends ClusteredHTTPSessionBeanImpl
{
// Constants -----------------------------------------------------
// Attributes ----------------------------------------------------
public String id;
public Serializable serializedSession;
public long lastAccessTime;
public long creationTime;
// Static --------------------------------------------------------
// Constructors --------------------------------------------------
public ClusteredHTTPSessionBeanCmp11 ()
{
}
// Public --------------------------------------------------------
// Z implementation ----------------------------------------------
// ClusteredHTTPSessionBeanCmp11 overrides
---------------------------------------------------
public String getSessionId ()
{ return this.id; }
public void setSessionId (String sessionId)
{ this.id = sessionId; }
public Serializable getSerializedSession ()
{ return this.serializedSession; }
public void setSerializedSession (Serializable session)
{ this.serializedSession = session; }
public long getLastAccessedTime ()
{ return this.lastAccessTime; }
public void setLastAccessedTime (long value)
{ this.lastAccessTime = value; }
public long getCreationTime ()
{ return this.creationTime; }
public void setCreationTime (long value)
{ this.creationTime = value; }
// Package protected ---------------------------------------------
// Protected -----------------------------------------------------
// Private -------------------------------------------------------
// Inner classes -------------------------------------------------
}
1.1
jbossmx/src/main/org/jboss/ha/httpsession/ejb/ClusteredHTTPSessionBeanImpl.java
Index: ClusteredHTTPSessionBeanImpl.java
===================================================================
/*
* JBoss, the OpenSource J2EE webOS
*
* Distributable under LGPL license.
* See terms of license at gnu.org.
*/
package org.jboss.ha.httpsession.ejb;
import java.rmi.RemoteException;
import java.rmi.MarshalledObject;
import javax.ejb.EJBException;
import org.jboss.ha.httpsession.interfaces.SerializableHttpSession;
/**
* Core implementation of methods for the bean.
*
* @see org.jboss.ha.httpsession.interfaces.ClusteredHTTPSession
* @see org.jboss.ha.httpsession.ejb.ClusteredHTTPSessionBeanAbstract
*
* @author <a href="mailto:[EMAIL PROTECTED]";>Sacha Labourey</a>.
* @version $Revision: 1.1 $
*
* <p><b>Revisions:</b>
*
* <p><b>31. d�cembre 2001 Sacha Labourey:</b>
* <ul>
* <li> First implementation </li>
* </ul>
*/
public abstract class ClusteredHTTPSessionBeanImpl extends
ClusteredHTTPSessionBeanAbstract
{
// Constants -----------------------------------------------------
// Attributes ----------------------------------------------------
protected SerializableHttpSession tmpSession = null;
protected boolean isModified = false;
// Static --------------------------------------------------------
// Constructors --------------------------------------------------
// Public --------------------------------------------------------
// Z implementation ----------------------------------------------
// ClusteredHTTPSessionBeanAbstract overrides
---------------------------------------------------
public void ejbStore () throws EJBException, RemoteException
{
if (tmpSession != null)
// the tmpSession has been assigned. Furthermore, if ejbStore is called
// it means that isModified==true => we need to rebuild a serialized
representation
//
serializeSession();
}
public void ejbLoad () throws EJBException, RemoteException
{
// the tmp value is no more valid: a new serialized representation is just
loaded.
// it will be transformed only if explicitly asked.
//
tmpSession = null;
isModified = false;
}
public SerializableHttpSession getSession () throws EJBException
{
if (tmpSession == null)
{
// this is the first access to the object representation.
// we use a lazy scheme => we unserialize now
unserializeSession ();
}
return this.tmpSession;
}
public void setSession (SerializableHttpSession session)
{
if (tmpSession == null)
isModified = true;
else
isModified = session.areAttributesModified (tmpSession);
// in any case, we update the "time" attributes
//
this.setCreationTime (session.getCreationTime ());
this.setLastAccessedTime (session.getLastAccessedTime ());
// in any cases, we assign the new session: this is because the session
// may have internal data that is not used for the isModified comparison
// (such as last access time). Consequently, if we use a load-balancer with
// sticky sessions, the values will be kept in cache correctly whereas if we
// don't have sticky session, these values will only be clustered-saved if
// an attributed is modified!
//
this.tmpSession = session;
}
// Optimisation: called by the CMP engine
//
public boolean isModified () { return this.isModified; }
// Package protected ---------------------------------------------
// Protected -----------------------------------------------------
protected void serializeSession() throws EJBException
{
// In the current release, we use MarshalledObject. It is probably not a
// solution at all but it is very easy to change
//
try
{
this.setSerializedSession (new MarshalledObject (this.tmpSession));
}
catch (Exception e)
{
throw new EJBException (e.toString ());
}
}
protected void unserializeSession() throws EJBException
{
try
{
this.tmpSession =
(SerializableHttpSession)((MarshalledObject)(this.getSerializedSession ())).get ();
}
catch (Exception e)
{
throw new EJBException (e.toString ());
}
}
// Private -------------------------------------------------------
// Inner classes -------------------------------------------------
}
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