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From James Carman <jcar...@carmanconsulting.com>
Subject Re: [wicket 1.5] url handling refactor preview
Date Sat, 03 Oct 2009 01:31:48 GMT
I'm not jazzed about the fact that both methods are named map() when
they're supposed to be inverses of one another.

On Fri, Oct 2, 2009 at 6:47 PM, Igor Vaynberg <igor.vaynberg@gmail.com> wrote:
> as ive mentioned before, the focus of 1.5 will be the overhaul of how
> we handle the urls and process requests. this part of wicket has grown
> organically and has turned into a bunch of overcomplicated spaghetti
> code.
>
> matej and i (mostly matej) have been working on an clean room
> implementation that we think will be simpler, cleaner, and allow users
> to mangle their urls as much as they want.
>
> the preview is available here:
> https://svn.apache.org/repos/asf/wicket/sandbox/knopp/experimental/wicket-ng
>
> with a tiny test webapp here
>
> https://svn.apache.org/repos/asf/wicket/sandbox/knopp/experimental/wicket-ng-webapp
>
> this is just a small prototype to allow us to feel out the api before
> we begin the nightmarish task of merging this back into wicket proper.
>
> the main package of interest is org.apache.wicket.request which
> contains the two key players: RequestMapper and RequestHandler. these
> two entities work together to resolve and process urls, facilitated by
> the new and much simplified yet functional
> org.apache.wicket.requset.cycle.RequestCycle.
>
> the RequestHandler is analogous to IRequestTarget - its job is to
> generate a response to user's request.
>
> the RequestMapper is what maps urls to requesthandlers and back. this
> is the backbone of url handling. the interface is quiet simple, yet
> allows total flexibility. the mappers can be composed and chained,
> producing any kind of url scheme desirable. as well as allowing users
> to build the url hierarchy in any way they want rather then just
> working with absolute mounts like in 1.4.
>
> for example, the ever desirable /<locale>/<all else> url encoding
> scheme is now easily achievable by creating a mapper to take care of
> the /locale/ portion and chaining all other mappers behind that.
>
> and for the other ever desirable usecase of mounting things like so:
> /${user}/profile/${section}/detail there is now the
> org.apache.wicket.request.mapper.MountedMapper
>
> further, because mappers are chainable one can foresee a mapper who
> doesnt manipulate the url, but instead enforces a security constraint
> on a subset of url space.
>
> of interest are also: org/apache/wicket/request/url-format.txt and
> org/apache/wicket/page/page-management.txt
>
> feedback is welcome. above all we would like to hear all your weird
> and interesting url mapping scheme ideas so we can proof the api
> against them.
>
> -igor
>

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