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Subject: RE: Modify request in a Vavle?
Date: Mon, 3 May 2004 14:35:28 -0400
Message-ID: <9C5166762F311146951505C6790A9CF8013E0292@US-VS1.corp.mpi.com>
Thread-Topic: Modify request in a Vavle?
thread-index: AcQxPRkW1wKPdcdMTfS7vmLiO7hqIwAAAmdQ
From: "Shapira, Yoav" <Yoav.Shapira@mpi.com>
To: "Tomcat Users List" <tomcat-user@jakarta.apache.org>


Hi,
You can modify some things in a Valve, such as request headers.
Modifying the request content itself is trickier.  I haven't tried to =
do
that in a Valve, but since tomcat is open you can always modify the
connector if you're hell-bent on going this way.

Consider a Filter (javax.servlet.Filter) rather than a Valve if you ne=
ed
to modify headers or otherwise customize the request.  A Filter in
combination with an HttpServletRequestWrapper is not only effective an=
d
flexible, but also more portable than a Valve because it's not specifi=
c
to Tomcat.

Yoav Shapira
Millennium Research Informatics


>-----Original Message-----
>From: Rui Zhang [mailto:Rui.Zhang@comlab.ox.ac.uk]
>Sent: Monday, May 03, 2004 2:34 PM
>To: tomcat-user@jakarta.apache.org
>Subject: Modify request in a Vavle?
>
>Hi there,
>
>  Is it possible to modify the content of a request (say, the SOAP
>message it carries) in a Tomcat valve? I was hoping to embed some inf=
o
>into the SOAP message and thus pass it to the subsequent Axis
>environment......
>
>  I had a look at the Request structure Tomcat valve captures, but
>couldn't find any convenient way to achieve the above. Can any one gi=
ve
me
>some suggestions?
>
>  Thank you very much.
>
>Best regards,
>
>Rui
>
>
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