doctor john
to followup with the addChild method and if an exception is thrown and you
determine your container doesnt support child containers..what then?
your diagnosis doctor..
Martin
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> From: [EMAIL PROTECTED]
> To: users@tomcat.apache.org
> Subject: Re: adding servlet definition to context on the fly :Tomcat 5.5
> Date: Sat, 4 Oct 2008 21:20:39 +0200
>
>
> ----- Original Message -----
> From: <[EMAIL PROTECTED]>
> To: <users@tomcat.apache.org>
> Sent: Saturday, October 04, 2008 5:34 PM
> Subject: adding servlet definition to context on the fly :Tomcat 5.5
>
>
> > Hi,
> > I had written some code to dynamically add a servlet to a context in a
> > deployed applicaiton in Tomcat 4.1. This code basically uses the catalina
> > loader to obtain the server->engine->host->and context, and invokes the
> > addChild method after configuring a StandardWwrapper to represent the
> > servlet I am adding. This all works fine in Tomcat4.1 and I am able to
> > access the servlet through the right url immediately, without having to
> > restart Tomcat.
>
> I'd luv to see that code... the stuff you playing with is in Tomcat core...
> must have been difficult to debug... perhaps its an embedded app?
>
> But I think this answers your question...
>
> public void addChild(Container child) {
>
> throw new IllegalStateException
> (sm.getString("standardWrapper.notChild"));
>
> }
>
> is what addChild now looks like in 6... if they did allow it, now they
> dont (;
>
> Dont think you can blame TC... whoever made that app was doing open heart
> surgery ;)
>
> I've never tried this, but its really interesting... I think I would start
> by having a good look at...
>
> HttpServlet source code... its an abstract class with a little
> introspection...
>
> but I (think... maybe) that the way to go is to make a servlet... that does
> what HttpServlet servlet does... and then load your sevlet classes into your
> servlet... and call them...
>
> I (think... maybe) maybe that it will come down to doing your own servlet
> mapping... and detection of new classes added... possibly your own uri to a
> "manager" function...
>
> ie I think you can make a servlet intelligent enough to do this... without
> climbing into the engine and doing a liver transplant... and then because
> you now inside the official API... this will never happen again.
>
> In the end it will be something like
> http://domain/contect/addons/ANY_ADD_ON_SERVLETS
>
> ... I'd give that a bash... dont think its a good idea trying the current
> method even if you do find an open vein ;)
>
> Good Luck...
>
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