Re: [OS-webwork] Advanced URL mapping?

Jerome BERNARD Sun, 28 Sep 2003 13:53:40 -0700

Could you give some insights about the way Turbine handle URLs?
Any pointers?

J�r�me.

Robert Douglass wrote:

+1 for Turbine style urls

-----Original Message-----
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] Behalf Of
Jerome BERNARD
Sent: Sunday, September 28, 2003 6:09 PM
To: [EMAIL PROTECTED]
Subject: Re: [OS-webwork] Advanced URL mapping?


I just looked at the code and can't find anything really helpful in the
ServletDispatcher class :-(

Here is what I would like to do:

public class RewriteServletDispatcher extends ServletDispatcher {
 public void service(HttpServletRequest request, HttpServletResponse
response) throws ServletException {
   // extract the article id to retreive
   String pathInfo = request.getPathInfo();
   String articleID = pathInfo.substring(1, pathInfo.length());
   // alter the original request so that WW handles it
   // the request could be now something like
"/showArticle.action?article=<articleID>"
   ???
 }
}

As show above, even though I am able to extract the relevant information
(the article ID), I am not able to tell the ServletDispatcher that
instead of using the action built from the request path I would like to
use my own path (that would be a "regular" WW action name with my
article id as a parameter).

So ServletDispatcher does not seem to offer much compared to a custom
Servlet (I mean in the use case of course :-)).
If ServletDispatcher was "refactored" a little bit so that the main work
would be done in a method independant of the ServletRequest this would
probably help. I am thinking about something like this:

public class ServletDispatcher extends HttpServlet {
 public void service(HttpServletRequest request, HttpServletResponse
response) throws ServletException {
   // extract the relevant information from the HttpServletRequest object
   handleRequest(extractPath, response);
 }
 protected void handleRequest(String requestPath, HttpServletResponse
response) throws ServletException {
 }
 // other methods omitted for brief
}

This would allow developers to extend ServletDispatcher and still be
able to implement any URL mapping policy they'd like to use.

I would definitely prefer something better than my own servlet with a
"copy&paste" from ServletDispatcher's code.

Any suggestion?

BTW, I think this kind of servlet should be included in WW. This would
allow pretty URL (this is in fact the main purpose I'm trying to reach).

Regards,
J�r�me.

Jason Carreira wrote:

Yes, implementing your own ServletDispatcher is the best way to do this...

-----Original Message-----
From: Jerome BERNARD [mailto:[EMAIL PROTECTED]
Sent: Sunday, September 28, 2003 10:54 AM
To: [EMAIL PROTECTED]
Subject: [OS-webwork] Advanced URL mapping?

Hi,

I would like to be able to map some URL to some actions where part of
the URL is transformed as a parameter to the action.
For example, I would like the URL
"http://myhost.com/article/XYZ"; to be
rendered as the view
of the action "showArticle" with the parameter
"articleID" set to "XYZ".

I could possibly do such a thing using Apache (and especially
mod_rewrite) as a proxy to the web server, but I would like
to handle it
at the Servlet level.

I am wondering what is the best way to do it... Should I extend WW
default ServletDispatcher?

Thanks in advance,
J�r�me.


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