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From Daniel Fagerstrom <dani...@nada.kth.se>
Subject Re: Reloading the mountableServlets map in DispatcherServlet
Date Wed, 14 Mar 2007 07:07:04 GMT
Reinhard Poetz skrev:
> 
> After more than two days of debugging, many thanks go to Torsten and 
> Carsten who helped me to track down the problem, I found out, why the 
> reloading classloader plugin doesn't propertly reload the Spring 
> application context:
> 
> The problem is that the DispatcherServlet contains a map of all 
> mountable servlet services. This map is initialized in the init() method 
> of the servlet and will never be reloaded. These servlets have a 
> reference to the first Spring app context and every reset remains 
> without effect.

Use OSGi ;)

> The simplest solution that I could think of is adding a check whether 
> the system runs in dev mode. If true, the code, that collects 
> information about all available servlet services, is executed every time 
> when the service() method is called. As this doesn't seem to be 
> expensive I think it's at least not the worst option.
> All other solutions would either make the DispatcherServlet dependant 
> from the ReloadingClassloader stuff or vice verca. But maybe it's only 
> to late here and I overlook a simple solution.

There is a startup time stamp in the Spring application context 
http://static.springframework.org/spring/docs/2.0.x/api/org/springframework/context/ApplicationContext.html#getStartupDate()

maybe you can use that.

/Daniel


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