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Re: [jersey-dev] Internal request with new UriInfo
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Yes!
Because
a) HTTP incurs overhead
b) filters such as access control would apply that could produce a
different response (although a related use case would be to make such
"internal request" and still have the request/response filters apply)
On Tue, Oct 20, 2020 at 10:14 AM Jan Supol <jan.supol@xxxxxxxxxx> wrote:
>
> So if I understand it correctly, what you want is to create a request to
> another resource, but without wiring it through the HTTP?
>
> On 19.10.2020 21:20, Martynas Jusevičius wrote:
> > But how do I then obtain an instance of the subresource and call
> > methods on it? E.g. post().
> >
> > I'm also reading paths from data, so hardcoding them in @Path would be
> > less flexible.
> >
> > On Mon, Oct 19, 2020 at 7:43 PM Jan Supol <jan.supol@xxxxxxxxxx> wrote:
> >> In Jersey, you can have something like:
> >>
> >> public static class SubResource {
> >> private UriInfo uriInfo;
> >> public SubResource(@Context UriInfo info) {
> >> this.uriInfo = info;
> >> }
> >>
> >> @GET public String get() {
> >> return uriInfo.getAbsolutePath().toASCIIString();
> >> }
> >> }
> >>
> >> @Path("/")
> >> public static class Resource {
> >> @Path("/sub")
> >> public Class<SubResource> getSub() {
> >> return SubResource.class;
> >> }
> >> }
> >>
> >> Would that help?
> >>
> >> -- Jan
> >>
> >> On 19.10.2020 18:29, Martynas Jusevičius wrote:
> >>> Thanks. Yes I instantiate Resource on my own.
> >>>
> >>> It’s because in 2.x there does not seem to be any mechanism to lookup
> >>> resource by URI? While in 1.x there was ResourceContext.matchResource():
> >>> https://urldefense.com/v3/__https://github.com/eclipse-ee4j/jersey/issues/2444__;!!GqivPVa7Brio!LQ4FY4Sfb1IZnNQVW6w1HPtnwnjUmBsVG02dVkhS9jFvjbnSVDFZcWeVUfvfMuO_$
> >>> <https://urldefense.com/v3/__https://github.com/eclipse-ee4j/jersey/issues/2444__;!!GqivPVa7Brio!MCnZgqZ74rdUzIsS0up_Y_xaZgn3GmUi5SyIzdbytctEyUnsxO8ofcX3OkXS7ljX$>
> >>> The issue is now 7 years old - how come it’s not implemented in 2.x?
> >>>
> >>> So I need my own UriInfo implementation? Or can I reuse one somehow?
> >>>
> >>> On Mon, 19 Oct 2020 at 18.16, Jan Supol <jan.supol@xxxxxxxxxx
> >>> <mailto:jan.supol@xxxxxxxxxx>> wrote:
> >>>
> >>> So you instantiate the Resource class on your own? I am afraid
> >>> that you
> >>> need to instantiate the correct UriInfo on your own, too.
> >>>
> >>> For the sub-resource case, JAX-RS Spec. Section 3.2 says: Objects
> >>> returned by sub-resource locators (see Section 3.4.1) are expected
> >>> to be
> >>> initialized by their creator.
> >>>
> >>> Thanks,
> >>>
> >>> Jan
> >>>
> >>> On 19.10.2020 17:23, Martynas Jusevičius wrote:
> >>> > Hi Jan,
> >>> >
> >>> > OK let me try to explain.
> >>> >
> >>> > Lets say Resource is constructed with UriInfo where
> >>> >
> >>> requestUri=https://urldefense.com/v3/__https://localhost/some/path__;!!GqivPVa7Brio!MS_K1k3MXtVAEn9RUvumFbiAbJ9aUw7G7CZOzleix_3dgXbCtfyJaMIXnN-hW5Em$
> >>> >
> >>> > But then I want to create another Resource and execute its
> >>> methods as
> >>> > if it was a completely new request, e.g.
> >>> >
> >>> requestUri=https://urldefense.com/v3/__https://localhost/another/path__;!!GqivPVa7Brio!MS_K1k3MXtVAEn9RUvumFbiAbJ9aUw7G7CZOzleix_3dgXbCtfyJaMIXnLGxbHlH$
> >>> >
> >>> > So the same UriInfo does not apply. Nor is this a sub-resource case.
> >>> >
> >>> > On Mon, Oct 19, 2020 at 5:16 PM Jan Supol <jan.supol@xxxxxxxxxx
> >>> <mailto:jan.supol@xxxxxxxxxx>> wrote:
> >>> >> Hi,
> >>> >>
> >>> >> I am not sure I follow. Unless the resource is specified as a
> >>> singleton
> >>> >> (either by using the @Singleton annotation) or by
> >>> >> Application.getSingletons(), the Resource classes are
> >>> instantiated per
> >>> >> request, so you should have the proper UriInfo.
> >>> >>
> >>> >> Note that you may also inject @Context UriInfo as a post method
> >>> argument.
> >>> >>
> >>> >> Thanks,
> >>> >>
> >>> >> Jan
> >>> >>
> >>> >> On 19.10.2020 16:34, Martynas Jusevičius wrote:
> >>> >>> Hi,
> >>> >>>
> >>> >>> say I have a resource class with a UriInfo constructor and a
> >>> @POST method.
> >>> >>>
> >>> >>> How do I call post() on a new Resource with a new UriInfo with a
> >>> >>> different requestUri?
> >>> >>>
> >>> >>> public class Resource
> >>> >>> {
> >>> >>>
> >>> >>> @Inject
> >>> >>> public Resource(UriInfo uriInfo)
> >>> >>> {
> >>> >>> ...
> >>> >>> }
> >>> >>>
> >>> >>> @POST
> >>> >>> public post(Model model)
> >>> >>> {
> >>> >>> // use getUriInfo() here
> >>> >>> ...
> >>> >>> // forward POST -- how to construct UriInfo with an
> >>> arbitrary
> >>> >>> requestUri?
> >>> >>> new Resource(???).post(newModel);
> >>> >>> ...
> >>> >>> }
> >>> >>>
> >>> >>> }
> >>> >>>
> >>> >>>
> >>> >>> Martynas
> >>> >>> _______________________________________________
> >>> >>> jersey-dev mailing list
> >>> >>> jersey-dev@xxxxxxxxxxx <mailto:jersey-dev@xxxxxxxxxxx>
> >>> >>> To unsubscribe from this list, visit
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> >>> >> _______________________________________________
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> >>> > _______________________________________________
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> >>> _______________________________________________
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> >>> <https://urldefense.com/v3/__https://www.eclipse.org/mailman/listinfo/jersey-dev__;!!GqivPVa7Brio!MCnZgqZ74rdUzIsS0up_Y_xaZgn3GmUi5SyIzdbytctEyUnsxO8ofcX3OjKjUKYW$>
> >>>
> >>>
> >>> _______________________________________________
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> >> _______________________________________________
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> > _______________________________________________
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