Cool! That is exactly what I needed! I was getting miffed because valves got the nice catalina request object while InstanceEvent had to deal with the dumbed down HttpRequest. Now onto a design question:
I am implementing a JdbcSessionManager for dealing with non-sticky clusters. We wish to use the DB to store all of our session data when it is not in use. Thanks to Craig's help I was able to figure out how to do the updating of the session data in an InstanceEventListener that catches the AFTER_SERVICE_EVENT. In talking to Filip Hank about his Clustered session manager I was also able to do the database updates in a valve. Which way is preferable? In the InstanceEvent I can just filter out all queries that make this true: "default".equals(event.getServlet().getServletConfig().getServletName()) . Filip used the file extensions to create an exclusion list. Other notes: I have had to create my own JdbcSession object instead of subclassing StandardSession because the attributes HashMap is private and I need access to it. (I think) I am serializing the HashMap and storing only that in its own column. My other columns are expire_time, creation_time, app_name, and session_id. I am currently limited to sessions with 8k of data because of the DB limits on VARBINARY but that can change at a later date. --Angus > -----Original Message----- > From: Craig R. McClanahan [mailto:[EMAIL PROTECTED] > Sent: Wednesday, July 02, 2003 11:50 PM > On Wed, 2 Jul 2003, Angus Mezick wrote: > > > Date: Wed, 2 Jul 2003 15:08:33 -0400 > > From: Angus Mezick <[EMAIL PROTECTED]> > > Does anyone know how to access the container object from an instance > > event? Are there any specs that say an instance event can have no > > internal access to the server? > > > > I presume you're talking about > org.apache.catalina.InstanceEvent, right? > If so, the "wrapper" property that is accessible via > getWrapper() is the > org.apache.catalina.Container instance for this particular > servlet. If > you want the Context element for the webapp, for example, you'd say > something like: > > Context context = (Context) event.getWrapper().getParent(); > > or, to get the Host for this virtual host: > > Host host = (Host) event.getWrapper().getParent().getParent(); > > and so on. > > > Sorry for the cross post but I am deep into the internals > of tomcat here > > and I don't know which list is appropriate. The list with "how do I > > change the default port" type q's or the one that debates > how features > > should be implemented. > > > > The TOMCAT-USER list probably won't have many folks that > understand the > internals well enough to answer a question like this :-). > > > Angus Mezick > > GuideStar - Philanthropic Research Inc. > Craig McClanahan --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
