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From Christopher Schultz <ch...@christopherschultz.net>
Subject Re: URI Templates
Date Thu, 20 Aug 2015 21:30:52 GMT
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Steffen,

On 8/20/15 11:58 AM, Steffen Heil (Mailinglisten) wrote:
> I have several servlets with mappings such as /a/* /b/* /c/* And so
> on.
> 
> One of these mappings was for the old Tomcat 7.0.27 websocket
> implementation: /ws/*
> 
> That worked.
> 
> Now, with the new JSR version in Tomcat 8, I cannot get this to
> work. The problem is, that all of the following paths shall match:
> 
> /ws/a/b /ws/a/c /ws/d/e
> 
> While these would work using /ws/{one}/{two}, the folloing won't:
> 
> /ws/a/b/c /ws/x/Y/z/a

So you have a servlet mapping for the uri-pattern of "/a/*", and the
context path is "/ws"?

I'm not sure why it would have worked in the past but not now. Can you
be very clear about what used to work and is no longer working?

> And I cannot know in advance, how many slashed there are. (This is
> for a framework, not a specific application.)
> 
> Is there any way to match those? Or to add a usual servlet mapping
> instead of an URI Template? (Preferred programmatically, not per
> web.xml, not per annotations.)

I think you have two possibilities:

1. Manually set-up the uri-patterns so that they do not overlap
2. Write a Servlet (or Filter) that inspects the URL and makes its own
decisions
3. Use something like url-rewrite as a config-only alternative for #2

I think due to your "not in web.xml" requirement, #1 cannot be done.

> While I would prefer a clean solution, I am also fine with one
> that works in tomcat only (using tomcat private functions).

I'm still not sure I understand the use case. There should be a way to
achieve what you want... I just don't yet understand the requirements.

- -chris
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