Hi,
UriBuilder noteBuilder =
info.getAbsolutePathBuilder().path(DongleResource.class);
so if we have
http://foo.com/Widget/999
the uri builder will already have /Widget/999, and then
path(DongleResource.class);
adds "/Widget/{id}/Dongle" but no trailing "/{dongleId}" so we have
http://foo.com/Widget/999/Widget/{id}/Dongle";
So when you do builder.build(widegetId, dongleId), dongleId is ignored.
One problem is that DongleResource.class is also acts as a root resource class
so it also has 'Widget'.
You might just to do :
Uri u =
UriBuilder.fromResource(DongleResource.class).path(dongleId).build(widgetId);
you can append @Path("{dongleId}") from the method to the DongleResource.class
Path value instead which will let you do
Uri u = UriBuilder.fromResource(DongleResource.class).build(widgetId, dongleId);
which will give you something like :
"/Widget/999/Dongle/1"
cheers, Sergey
----- Original Message -----
From: "John Klassa" <[email protected]>
To: <[email protected]>
Sent: Wednesday, October 07, 2009 2:31 PM
Subject: UriBuilder confusion
I'm trying to use Apache CXF with JSR-311 annotations to prototype
some web services. So far, so good, but with some snags. The one I'm
facing currently is with UriBuilder...
Basically, I've got a resource class that represents Widgets, let's
say. That class has sub-resources, which we'll call Dongles. In the
XML that's emitted for a Widget, I want to insert links to the Dongle
"children" of the Widget. In URI terms, it'd be something like:
http://foo.com/Widget/999
(returns the XML for the Widget with ID 999)
http://foo.com/Widget/999/Dongle/23
(returns the XML for Widget 999's Dongle with ID 12)
In the XML for Widget 999, I'd like to see something like:
<Dongle xlink:href="/Widget/999/Dongle/23">
dongle details
</Dongle>
And of course, I don't want to hard-code anything, so I'm trying to
build the link programmatically. So, I followed some examples, and
came up with something like this:
import javax.ws.rs.core.UriBuilder; // among others
@Path("/Widget")
public class WidgetResource
{
@GET
@Path("/{id}")
@Produces("application/xml")
public Widget getWidget (@PathParam("id") String id,
@Context UriInfo info)
{
UriBuilder noteBuilder =
info.getAbsolutePathBuilder().path(DongleResource.class);
// ...and later, something like...
obj.setHref(dongleBuilder.build(id, dongle.getID()).toString());
/// ...and so on...
}
}
@Path("/Widget/{id}/Dongle")
public class DongleResource
{
@GET
@Path("/{dongleID}")
@Produces("text/plain")
public Dongle getDongle (@PathParam("id") String id,
@PathParam("dongleID") String dongleID)
{
// ...stuff happens...
}
}
However, when I use this, I invariably get a built URI that looks like
this:
<Dongle xlink:href="/Widget/999/Widget/999/Dongle">...
with the Widget/ID repeated, and no primary key on the Dongle -- or
variants thereof, but never what I'm looking for. I've tried defining
the Path in different ways, with different parts exposed in different
places. I've also tried fetching the UriBuilder like so:
info.getAbsolutePathBuilder().path(DongleResource.class, "getDongle")
to explicitly call out the method of interest, that I'm hoping will
provide the template for the URI. In short, it's not clear to me how
UriBuilder does its thing, or what the best practices around it are,
so I'm hoping someone can shed some light on the subject.
Thanks.
