Hello Igor,

Thanks again for your patience :)

I found the page in the Wiki, it's here:
http://cwiki.apache.org/WICKET/uploaddownload.html

Now I know what to do!


.rue

2007/5/8, Igor Vaynberg <[EMAIL PROTECTED]>:
> you would mount one image resource and read the image id from the url, there
> is an article on this somewhere in the wiki and if you want you can look at
> the pastebin code (papernapkin.com ), its hosted on berlious.de i believe.
>
> -igor
>
>
>
> On 5/8/07, Rüdiger Schulz < [EMAIL PROTECTED]> wrote:
> >
> > Hello,
> >
> > thanks a lot for both suggestions :)
> >
> > A mounted DynamicImageResource looks interesting, but as I see it,
> > there would be a mount for every single image? Or is it somehow
> > possible to mount a shared resource in a way that a parameter can be
> > passed? I have a lot of images, and user can create new ones...
> >
> > So going the way Jeremy provided, I would do the following:
> >
> > 1. Extend an AbstractRequestUrlCodingStrategy, where I
> will define how
> > the path will be interpreted (quite similar to how I do it in my
> > servlet a.t.m.).
> >
> > 2. decode() would return a ResourceStreamRequestTarget, which uses a
> > IResourceStream, which will deliver the image data.
> >
> > 3. Implement a WebComponent, where in onComponentTag() the src
> > attribute will be generated to match my strategy from above.
> >
> > Are there any objections on this, or should it work? This thread
> > promises an example, but I couldn't find one in the wiki:
> >
> http://www.nabble.com/Joost-uses-Wicket-tf3390296.html#a9791575
> > (Jean-Baptiste seems to work on some kind of picture gallery as well :)
> >
> > I'm actually not sure what to do in
> > RequestUrlCodingStrategy.encode(IRequestTarget), and where it would be
> > called in this case.
> >
> >
> > .Rüdiger
> >
> > 2007/5/8, Igor Vaynberg <[EMAIL PROTECTED]>:
> > > you can also implement your own DynamicImageResource, and add it to
> shared
> > > resources
> > >
> > > webapp.getsharedresources().add("images", new MyDynamicImageResource());
> > >
> > > urls for shared resources are stable, and you can also mount them.
> > >
> > > -igor
> > >
> > >
> > >
> > >
> > > On 5/7/07, Jeremy Thomerson <[EMAIL PROTECTED]> wrote:
> > > > I've done a lot of custom URL encoding / decoding to keep very clean,
> > > search-engine friendly URLs in our application.  The place I would start
> > > would be to mount a custom IRequestTargetUrlCodingStrategy in your
> WebApp
> > > class.
> > > >
> > > > Here's some code that might help as a starting point:
> > > >
> > > >         private final Pattern mRequestPattern =
> > > Pattern.compile(getMountPath() + "/([0-9]*)/.*");
> > > >
> > > >         public boolean matches(RequestParameters rp) {
> > > >             return mRequestPattern.matcher(rp.getPath()).matches();
> > > >         }
> > > >
> > > >         public IRequestTarget decode(RequestParameters rp) {
> > > >             Matcher matcher = mRequestPattern.matcher(rp.getPath ());
> > > >             matcher.find();
> > > >             String strID = matcher.group(1);
> > > >             int id = -1;
> > > >             try {
> > > >                 id = Integer.parseInt(strID);
> > > >             } catch (NumberFormatException nfe) {
> > > >                 throw new IllegalArgumentException(strID + " is not a
> > > valid ID");
> > > >             }
> > > >
> > > >             IFooService svc = getBean(IFooService.class);
> > > >             return new PageRequestTarget(new FooPage(
> svc.findByID(id)));
> > > >         }
> > > >
> > > >
> > > > Jeremy Thomerson
> > > >
> > > >
> > > >
> > > > On 5/7/07, Rüdiger Schulz <[EMAIL PROTECTED] > wrote:
> > > > > Hello everybody,
> > > > >
> > > > > in my application, I'm currently serving images with a special
> > > > > servlet. It accepts request paths like /app/images/42.gif. The
> images
> > > > > themself are stored in a database. I like this approach, because the
> > > > > image URLs are static, and by that they can be cached by proxies and
> > > > > stored as bookmarks in browsers.
> > > > >
> > > > > I integrate this servlet with a custom WebComponent in my Wicket
> > > > > pages, where I compile the correct path.
> > > > >
> > > > > This all works very well, but now I'd like to convert this servlet
> > > > > into a Wicket component. It needs the same behavior (static urls),
> but
> > > > > I'd like to restrict access according to data in the current Wicket
> > > > > session.
> > > > >
> > > > > I think I know how to do this with a DynamicWebResource and all, but
> I
> > > > > have no idea how to do the URL binding. I don't know where to start
> at
> > > > > all. For pages there is the IndexedParamUrlCodingStrategy, but that
> > > > > won't do for images I guess...
> > > > >
> > > > > So, any help would be very welcome. Oh, and I'm still using Wicket
> > > > > 1.2.6; an update to 1.3 is planned, but cannot be done right now. If
> a
> > > > > solution would be much more easier in 1.3 than in 1.2, however, we
> > > > > might do it earlier or at least wait with the conversion of the
> > > > > Servlet until then.
> > > > >
> > > > >
> > > > > --
> > > > > greetings from Berlin,
> > > > >
> > > > > Rüdiger Schulz
> > > > >
> > > > > www.2rue.de
> > > > >
> > > > >
> > >
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> > --
> > greetings from Berlin,
> >
> > Rüdiger Schulz
> >
> > www.2rue.de
> >
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-- 
greetings from Berlin,

Rüdiger Schulz

www.2rue.de

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