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From "karthik" <karth...@xius.org>
Subject RE: Testing servlet redirects
Date Wed, 21 Jun 2006 13:02:48 GMT

  The example provided on the site is something confusing....
  If u hava a sample working test case with war file,please
  provid me the same. so i can correct my self.

with regards

-----Original Message-----
From: Kazuhito SUGURI [mailto:suguri.kazuhito@lab.ntt.co.jp]
Sent: Tuesday, June 20, 2006 3:19 PM
To: cactus-user@jakarta.apache.org
Subject: Re: Testing servlet redirects

Hi Dennis,

Followings are information and recommendation from me.
These are based on short examination with default settings of Tomat-5.5.12.
But, please note that behavior of a servlet named "default" might
be different for each container and its configuration.

In article <eb76c8de0606191414o76c404d1y3a53b5417f1506be@mail.gmail.com>,
Mon, 19 Jun 2006 23:14:40 +0200,
"Dennis Kempin" <dennis.kempin@googlemail.com> wrote:
dennis> thank you for your answer. My servlet is mapped to process any
request that
dennis> is made.
dennis> Lets say we have a request on /core/test.html: My servlets checks if
it can
dennis> handle, if not it redirects to the default
dennis> servlet which should serve test.html (which does exist).
dennis> But instead of the contents of test.html i get the described 404
Error which
dennis> says that it cannot find "/core/ServletRedirector".

I think it's hard to test the forwarding by using Cactus
as long as you are using getNamedDispatcher("default").

RequestDispatcherWrapper#forward(), which is used in the test,
calls the original RequestDispatcher with the original HTTP request.
# See Cactus API JavaDoc.

A servier-side test case is invoked from a servlet,
/<context>/ ServletRedirecter. So, the request URI of the original HTTP
request is "/<context>/ServletRedirector".

When the original RequestDispatcher is the default servlet of Tomcat,
it's trying to obtain the resource from "/<context>/ServletRedirector",
that has the possiblity of causing an infinite loop.
# Fortunately, the default servlet responds 404 and stops the loop.

Please try following fragments of servlet and web.xml.
You will find similar behavior with your Cactus tests
when you access to <context>/dummy.

    public DummyServlet
        extends HttpServlet
        protected void doGet(HttpServletRequest request,
                             HttpServletResponse response)
            throws ServletException, IOException



I would like to recommend you to use getRequestDispatcher(String)
instead of getNamedDispatcher("default"), it it's possible.
If you can do so, you will be able to simulate any path condition
for a testXXX() by using org.apache.cactus.WebRequest#setURL() method
in beginXXX(), and you can evaluate a forwarded responce in the
endXXX() method.
# You should not simulate <context>/ServletRedirector,
# which is the default of Cactus, of cource :-)

Hope this helps,
Kazuhito SUGURI

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