Help with Interceptors

[Arieh Markel <Ar...@Central.Sun.COM>]

I would like to write an Interceptor that can perform some verification
on the request parameters for all servlets on a specific Context
(or conversely, for all Contexts that I define).

I see a number of Interceptor interfaces in the source tree.

The idea I have in mind, is that the Interceptor will look at the Properties
of the HttpServletRequest, and depending on its finding, do things like:

	. add a property to the request
	. selectively perform a servlet redirection
	. return an error message

Would ServiceInterceptor, or SecurityInterceptor be good starting points ?

Thanks,

Arieh
--
 Arieh Markel		                Sun Microsystems Inc.
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Re: Help with Interceptors

[co...@eng.sun.com]

> The idea I have in mind, is that the Interceptor will look at the Properties
> of the HttpServletRequest, and depending on its finding, do things like:
> 
> 	. add a property to the request
> 	. selectively perform a servlet redirection
> 	. return an error message
> 
> Would ServiceInterceptor, or SecurityInterceptor be good starting points ?

RequestInterceptor if you want to process the request.
ContextInterceptor if you want "container"-event notifications.

( we are still working on this - but I think there are stable now, 
except configuration and few small details )


Service and Security Interceptor are used by J2EE, will be part of the
J2EE "adapter".

Costin