UWS 0.4

[Guy Rixon]

Hi Pat,

is it worth directing all the job-steering posts to the job resource  
itself? HTTP-POST is generally about changing state that appears in  
children of the recipient, so this seems stylistically pure. It might  
also make the coding easier, since fewer kinds of object have to  
handle post.

Cheers,
Guy

On 13 Jun 2008, at 23:53, Patrick Dowler wrote:

> On 2008-6-13 15:15, Patrick Dowler wrote:
>> On 2008-6-6 02:22, Paul Harrison wrote:
>>> I have uploaded a new version (0.4) of the UWS document
>>
>> One more detail about the phase: the user can POST to the phase  
>> resource
>> with param PHASE=RUN  or PHASE=ABORT to switch to the EXECUTING or  
>> ABORTED
>> state respectively.
>
>> The values (RUN and ABORT) are verbs, which implies this is an  
>> ACTION. They
>> are definitely not the new states. I thought in REST that a POST  
>> was to
>> update/modify, in which case the value submitted should be the new  
>> state.
>> At least that way, the POST and GET would be symmetric and use the  
>> same
>> strings and fewer UWS constants would have to be defined.
>>
>> So it would seem that a POST of the new value would be nicer, eg
>> PHASE=EXECUTING or PHASE=ABORTED.
>
> OK, it's friday afternoon, I have a cold, and I am responding to  
> myself :-)
>
> Now that I have noticed the QUEUED phase and it is clear that RUN  
> can put the
> job into either the QUEUED or EXECUTING state. Still, I think  
> PHASE=RUN may
> not be so good.... how about ACTION=RUN since we really are  
> introducing a
> verb here. That at least follows POSTing ACTION=DELETE stylistically.
>
> In the SOAP bindings, there are methods like execute() and abort() and
> destroy()  (aka delete) rather than setPhase()....
>
>> For a GET operation on phase(also applies to termination and  
>> destruction):
>> should the mimetype of the response be text/plain and just contain  
>> a simple
>> string (eg caller can just strip the whitspace and parse the  
>> value)? Or is
>> it in the same form/mimetype as the POST? eg does GET /joblist/job/ 
>> phase
>> return
>
> Doh! I completely skipped section 2.2.1.2 which says I need to be  
> able to send
> HTML (or XHTML) to clients that accept that and XML otherwise. I'll  
> blame it
> on the sinus medication :-)
>
> -- 
>
> Patrick Dowler
> Tel/Tél: (250) 363-6914                  | fax/télécopieur: (250)  
> 363-0045
> Canadian Astronomy Data Centre   | Centre canadien de donnees  
> astronomiques
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> Canada
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