How can I get the SCADomain refererce in a polciy module?

[fzhong]

Hi all:
  I'm trying to develop a policy module that need to visit database and rmi 
services, the database configuration and the rmi service has been initialized 
by the TuscanyContextListener .

 I know that the developers can get a reference to the SCADomain in their JSP 
or HttpServlet just like the following code snippet:
    SCADomain domain = (SCADomain) 
application.getAttribute("org.apache.tuscany.sca.SCADomain");

My question is  how can I get the ServletContext in the policy?  The method of 
interceptor ' Message invoke(Message msg) ' has no information about that.

Thanks.
2011-07-11 



fzhong