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[jsr339-experts] Re: [jax-rs-spec users] Re: Are Links build with fromReosurce or fromResourceMethod are useful at all?

  • From: Santiago Pericas-Geertsen <Santiago.PericasGeertsen@...>
  • To: jsr339-experts@...
  • Subject: [jsr339-experts] Re: [jax-rs-spec users] Re: Are Links build with fromReosurce or fromResourceMethod are useful at all?
  • Date: Fri, 16 Nov 2012 17:11:59 -0500


On Nov 16, 2012, at 4:46 PM, Jan Algermissen <jan.algermissen@...> wrote:

> 
> On Nov 16, 2012, at 10:40 PM, Santiago Pericas-Geertsen 
> <Santiago.PericasGeertsen@...> wrote:
> 
>> Jan,
>
>> My gut reaction is that we should not absolutize URIs on the server, it 
>> can lead to all sorts of problems (clustering environments, etc.).
> 
> Yes. That was what I came to, too (in my However(!) sentence)

 I see.

> 
>> We should instead have the notion of a base URI on the client, and have 
>> the client API do the work, just like a browser. 
> 
> That is the problem. The existing base URI 'determining' algorithm will 
> lead to anything, but never to the JAX-RS application path.

 I didn't mean we'd do this automatically. We should ask the "human" 
developer for help :)

> I am now thinking that there is 'concept' missing - I'll think about it and 
> see if I get an idea of it, at least.

 Sounds good.

-- Santiago

> 
>
>> If there isn't one, could you file a JIRA for this? Thanks.
>
>> -- Santiago
>
>> On Nov 14, 2012, at 5:29 AM, Jan Algermissen <jan.algermissen@...> wrote:
>
>>> Links that are constructed by using Link.fromResource or 
>>> Link.fromResourceMethod come with a relative URI.
>>> 
>>> This URI is always relative to the JAX-RS application context.
>>> 
>>> If I am not completely out of my mind, these links are never useful 
>>> as-is, because they are always relative in a way that doesn't fit any 
>>> current resolution context.
>>> 
>>> At leat not without applying rewrite rules in front of the container.
>>> 
>>> E.g. suppose my app is living at
>>> 
>>> http://example.org/myWarName/
>>> 
>>> and my resources at
>>> 
>>> http://example.org/myWarName/resources
>>> 
>>> Now if I have
>>> 
>>> @Path("orders/service")
>>> class OrderResource { ... }
>>> 
>>> @Path("customers/accounts/{id}")
>>> class CustomerResource { ... }
>>> 
>>> 
>>> and I do a GET on 'my' account:
>>> 
>>> GET http://example.org/myWarName/resources/customers/accounts/42
>>> 
>>> What might come back is a response with a Link to the order service:
>>> 
>>> 200 Ok
>>> Link: <orders/service>;rel=...
>>> 
>>> ....
>>> 
>>> 
>>> This link would never resolve to:
>>> 
>>> 
>>> http://example.org/myWarName/resources/orders/service
>>> 
>>> but, (hope I get this right) to
>>> 
>>> orders/service
>>> 
>>> http://example.org/myWarName/resources/customers/accounts/orders/service
>>> 
>>> 
>>> Bottom line seems to be: the runtime should prepend the base URI and 
>>> produce absolute links.
>>> 
>>> However(!) given that it is very unusual to have the actual base-URI as 
>>> the publicly visible base URI (there is usually quite  a bunch of 
>>> mangling going on) producing an absolute URI does cut it either - in fact 
>>> it would be worse.
>>> 
>>> Maybe we need to rethink the UriBuilder.fromXXX behavior to that regard, 
>>> too.
>>> 
>>> 
>>> Any ideas?
>>> 
>>> 
>>> Jan
>>> 
>>> 
>>> 
>>> 
>>> 
>>> 
>>> 
>>> 
>>> 
>>> 
>>> 
>
> 



[jsr339-experts] Are Links build with fromReosurce or fromResourceMethod are useful at all?

Jan Algermissen 11/14/2012

[jsr339-experts] Re: [jax-rs-spec users] Are Links build with fromReosurce or fromResourceMethod are useful at all?

Santiago Pericas-Geertsen 11/16/2012

[jsr339-experts] Re: [jax-rs-spec users] Are Links build with fromReosurce or fromResourceMethod are useful at all?

Jan Algermissen 11/16/2012

[jsr339-experts] Re: [jax-rs-spec users] Re: Are Links build with fromReosurce or fromResourceMethod are useful at all?

Santiago Pericas-Geertsen 11/16/2012

[jsr339-experts] Re: [jax-rs-spec users] Re: Are Links build with fromReosurce or fromResourceMethod are useful at all?

Jan Algermissen 11/20/2012

[jsr339-experts] Re: [jax-rs-spec users] Re: Re: Are Links build with fromReosurce or fromResourceMethod are useful at all?

Santiago Pericas-Geertsen 11/26/2012

[jsr339-experts] Re: [jax-rs-spec users] Re: Re: Are Links build with fromReosurce or fromResourceMethod are useful at all?

Jan Algermissen 11/26/2012

[jsr339-experts] Re: [jax-rs-spec users] Re: Re: Re: Are Links build with fromReosurce or fromResourceMethod are useful at all?

Santiago Pericas-Geertsen 11/26/2012

[jsr339-experts] Re: [jax-rs-spec users] Re: Re: Re: Are Links build with fromReosurce or fromResourceMethod are useful at all?

Jan Algermissen 11/26/2012

[jsr339-experts] Re: [jax-rs-spec users] Re: Re: Re: Re: Are Links build with fromReosurce or fromResourceMethod are useful at all?

Santiago Pericas-Geertsen 11/26/2012

[jsr339-experts] Re: [jax-rs-spec users] Re: Re: Re: Re: Are Links build with fromReosurce or fromResourceMethod are useful at all?

Jan Algermissen 11/26/2012

[jsr339-experts] Re: [jax-rs-spec users] Re: Re: Re: Re: Re: Are Links build with fromReosurce or fromResourceMethod are useful at all?

Santiago Pericas-Geertsen 11/26/2012

[jsr339-experts] Re: [jax-rs-spec users] Re: Re: Re: Re: Re: Are Links build with fromReosurce or fromResourceMethod are useful at all?

Jan Algermissen 11/26/2012

[jsr339-experts] Re: [jax-rs-spec users] Re: Re: Re: Re: Re: Re: Are Links build with fromReosurce or fromResourceMethod are useful at all?

Santiago Pericas-Geertsen 11/27/2012
 
 
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