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

  • From: Jan Algermissen <jan.algermissen@...>
  • To: jsr339-experts@...
  • Subject: [jsr339-experts] Re: [jax-rs-spec users] Re: Re: Are Links build with fromReosurce or fromResourceMethod are useful at all?
  • Date: Mon, 26 Nov 2012 16:51:54 +0100


On Nov 26, 2012, at 4:38 PM, Santiago Pericas-Geertsen 
<Santiago.PericasGeertsen@...> wrote:

> 
> On Nov 20, 2012, at 4:14 PM, Jan Algermissen <jan.algermissen@...> wrote:
> 
>
>> On Nov 16, 2012, at 11:11 PM, Santiago Pericas-Geertsen 
>> <Santiago.PericasGeertsen@...> wrote:
>
>>> 
>>> 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.
>
>> What about putting an alternative Link/Uri -fromResourceXX() base URI in 
>> ApplicationConfig?
>
>> @javax.ws.rs.ApplicationPath("resources")
>> @javax.ws.rs.BaseUri("http://service.ex.org/erp-system/api";)
>> public class ApplicationConfig extends javax.ws.rs.core.Application {
>
>> }
>
>> Not ideal, but maybe it triggers other thoughts.
> 
> I don't think this will generally work in a clustering environment (with 
> load balancers, etc.). It may work if that info is in a deployment 
> descriptor, but having to recompile my app just to deploy it correctly is 
> clearly undesirable. 
> 
> What about introducing the notion of a base URI as part of the Client API? 

That won't work because the base URI for relative URI references in HTTP 
responses is already defined by the HTTP & friends spec stack. This is 
nothing you can override or tamper with.

This is why having Link.fromXXX produce relative URI refs makes the whole 
thing useless. You definitely need to prepend a base URI. And for that you 
need to create a new Link object via a roundtrip through UriBuilder.

Only if Link.fromXXX return absoute URIs and only if the server-'owner' can 
configure the base URI to use in Links does the use of Link.fromXXX make 
sense at all.

Jan

> 
> -- Santiago
> 



[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

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

Jan Algermissen 11/27/2012

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

Santiago Pericas-Geertsen 11/27/2012

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

Jan Algermissen 11/27/2012
 
 
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