Inserting servlet prior to CAS web-flow

[Adrien Futschik]

I am wondering how I could insert the execution of a 
servlet before the whole web-flow. I am not familiar with 
Spring. 

I see that the web-flow is described in the login-webflow.xml file.
What changes would I have to make to this file, to redirect it to my servlet
and then back to the webflow ?

Thanks very much.
-- 
Futschik Adrien
Atos Origin
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