-AAron
From: "Cox, Charlie" <[EMAIL PROTECTED]>
Reply-To: "Tomcat Users List" <[EMAIL PROTECTED]>
To: 'Tomcat Users List' <[EMAIL PROTECTED]>
Subject: RE: filter jsp:include servletPath?
Date: Mon, 2 Dec 2002 07:50:48 -0500
no, filters are only applied on the original request.
Charlie
> -----Original Message-----
> From: AAron nAAs [mailto:[EMAIL PROTECTED]]
> Sent: Thursday, November 28, 2002 12:45 PM
> To: [EMAIL PROTECTED]
> Subject: Re: filter jsp:include servletPath?
>
>
> Due to the complexity of the question and probably vendor
> specific-ness of
> the answer, I've altered course and solved the problem.
>
> I wrote my own small taglib to implement the jsp:include
> functionality. I
> just need to change the <jsp:include page="/include.html"/> tags into
> <mylib:include page="/include.html"/>
>
> I'm still interested in knowing if a jsp:include intercept is
> possible, but
> I'm not waiting for the answer anymore. If there are any die hard
> coders/detail-ists out there, let me know if it's even
> possible without
> modifying Tomcat itself.
>
> -AAron
>
> >From: "AAron nAAs" <[EMAIL PROTECTED]>
> >Reply-To: "Tomcat Users List" <[EMAIL PROTECTED]>
> >To: [EMAIL PROTECTED]
> >Subject: filter jsp:include servletPath?
> >Date: Wed, 27 Nov 2002 22:43:28 -0500
> >
> >Hi all,
> >
> >This is more clarification about my attempts to
> automatically intercept and
> >modify a .jsp request's servletPath as well as all the embedded
> ><jsp:include> files.
> >
> >Examples:
> >http://blah.com/index.jsp would run <approot>/blah/index.jsp or
> ><approot>/default/index.jsp based on which was first found to exist.
> ><jsp:include page="/include.html"/> would use
> <approot>/blah/include.html
> >or <approot>/default/include.html based on which was first
> found to exist.
> >
> >I'm choosing a directory for the requested .jsp file based
> on the hostname
> >specified in the request. I've gotten that to work perfectly
> by adding a
> >filter to my web.xml file, and wrapping the request object
> before passing
> >on to the next doFilter(). By overriding the request
> getServletPath() I can
> >change the servlet or JSP file that gets invoked.
> >
> >Now I want the jsp:include files to also use an alternate
> directory. So
> >refering to "/myfile.jsp" in the include would be
> intercepted and changed
> >to another directory based on the hostname in the original request.
> >
> >Another view is that I'm creating a "path" to search through
> to find the
> >requested (or included) file. If the requested file isn't
> found in the
> >alternate expected directory, it checks in the default
> directory which will
> >always have the file for request (or include).
> >
> >The code shows that once the request is filtered, all the
> jsp:include's are
> >not.
> >
> >Private method ApplicationDispatcher.invoke() says:
> > * IMPLEMENTATION NOTE: This implementation assumes
> > * that no filters are applied to a forwarded or
> included resource,
> > * because they were already done for the original request.
> >
> >Anyway, I'll let you read my original post below for more
> details on what
> >I've found.
> >
> >BTW, I've searched long and hard for anyone doing this sort
> of thing. But,
> >I'm certainly open to the embarassment of "Oh, just do this"
> if I've missed
> >the obvious :-)
> >
> >Thanks,
> >-AAron
> >
> >My original post:
> >
> >I'm trying to intercept a jsp:include so that I can adjust
> the requested
> >file (ie: "/include.html") to a different directory/file (ie:
> >"/otherdir/otherfile.html"). If there is an easy way (Filter, Valve,
> >Listener, ...) just let me know. NOTE: I've already created
> and installed a
> >request filter in my web.xml to filter the initial request, but this
> >doesn't get invoked for jsp:include references.
> >
> >Current idea:
> >I want to change the "javax.servlet.include.servlet_path"
> request attribute
> >so the DefaultServlet.getRelativePath() finds the new file.
> I can see that
> >the ApplicationDispatcher fires off a list of
> InstanceEvent's before the
> >DefaultServlet.service() is called.
> >
> >After days of exploration, I can't figure out how to add to get my
> >InstanceEvent into the InstanceSupport's list (ie: cause a
> call to the
> >support.addInstanceListener). Is there a configuration that
> will add my
> >class to my application Context?
> >
> >Thanks,
> >-AAron ([EMAIL PROTECTED])
> >
> >
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>
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