"Nolan Johnson" <n0...@yahoo.com> wrote in message 
news:291765.23953...@web38808.mail.mud.yahoo.com...
>
> I'm implementing a Manager (session management) that stores sessions on 
> shared servers (that is, a distributed manager, but not the default one 
> that comes with tomcat).  A key difference between the implementation that 
> I'm working on and the ClusteredManager is that the entire session is 
> distributed when it changes, rather than sending individual parameters 
> around over the network.
>
> The problem that I'm having is that the Manager needs to be notified when 
> the request has finished with the session.  I'm aware that I can create a 
> ServletRequestListener, and I think that the requestDestroyed method would 
> be a reasonable time for me to be telling the manager that it should 
> distribute the session.  However, I can't for the life of me figure out 
> how to get a reference to the Manager from a ServletRequestListener.
>
> I've tried:
> - having the ServletRequestListener also be a ServletContextListener, but 
> I can't navigate to the manager from there.
> - finding the Manager through the session, but that's a 
> StandardSessionFacade, which doesn't reveal the manager.
> - having the ServletRequestListener also be a ContainerListener, but I 
> can't make the same instance of the Listener be registered as both (since 
> registerting a ServletRequestListener through the StandardContext doesn't 
> allow me to register an object, I can only tell it what class to use).
>
> Any suggestions?  Either for how I can have my ServletRequestListener get 
> a reference to the Manager, or for other strategies for knowing when the 
> Request is finished with the Session so that I can distribute it.
>

Since you are already programming against Tomcat internals, the simplest is 
probably to write a Valve instead of a ServletRequestListener.  The Valve 
will have access to all Tomcat internal Objects, and so could get to the 
Manager fairly simplily.

> Thanks.
>
> Nolan
>
>
>
> 




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