org.acegisecurity.concurrent
Class ConcurrentSessionFilter

java.lang.Object
  org.acegisecurity.concurrent.ConcurrentSessionFilter

All Implemented Interfaces:

javax.servlet.Filter, InitializingBean

public class ConcurrentSessionFilter
extends Object
implements javax.servlet.Filter, InitializingBean

Filter required by concurrent session handling package.

This filter performs two functions. First, it calls SessionRegistry.refreshLastRequest(String) for each request. That way, registered sessions always have a correct "last update" date/time. Second, it retrieves SessionInformation from the SessionRegistry for each request and checks if the session has been marked as expired. If it has been marked as expired, the session is invalidated. The invalidation of the session will also cause the request to redirect to the URL specified, and a HttpSessionDestroyedEvent to be published via the HttpSessionEventPublisher registered in web.xml.

Version:

$Id: ConcurrentSessionFilter.java,v 1.2 2005/11/17 00:55:56 benalex Exp $

Author:

Ben Alex

Constructor Summary

ConcurrentSessionFilter()

Method Summary

void	afterPropertiesSet()
void	destroy() Does nothing.
void	doFilter(javax.servlet.ServletRequest request, javax.servlet.ServletResponse response, javax.servlet.FilterChain chain)
void	init(javax.servlet.FilterConfig arg0) Does nothing.
void	setExpiredUrl(String expiredUrl)
void	setSessionRegistry(SessionRegistry sessionRegistry)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

ConcurrentSessionFilter

public ConcurrentSessionFilter()

Method Detail

setExpiredUrl

public void setExpiredUrl(String expiredUrl)

setSessionRegistry

public void setSessionRegistry(SessionRegistry sessionRegistry)

afterPropertiesSet

public void afterPropertiesSet()
                        throws Exception

Specified by:

afterPropertiesSet in interface InitializingBean

Throws:

Exception

destroy

public void destroy()

Does nothing. We use IoC container lifecycle services instead.

Specified by:

destroy in interface javax.servlet.Filter

doFilter

public void doFilter(javax.servlet.ServletRequest request,
                     javax.servlet.ServletResponse response,
                     javax.servlet.FilterChain chain)
              throws IOException,
                     javax.servlet.ServletException

Specified by:

doFilter in interface javax.servlet.Filter

Throws:

IOException

javax.servlet.ServletException

init

public void init(javax.servlet.FilterConfig arg0)
          throws javax.servlet.ServletException

Does nothing. We use IoC container lifecycle services instead.

Specified by:

init in interface javax.servlet.Filter

Parameters:

arg0 - ignored

Throws:

javax.servlet.ServletException - ignored