[occi-wg] Request for clarification: Are multiple lines allowed?

Vincenzo Ciaschini vincenzo.ciaschini at cnaf.infn.it
Mon Feb 25 10:44:36 EST 2013


Hi Andy,

    Thanks for the fast answer!

    A clarification is possibly needed: what we are discussing in the 
Federated
Cloud group is not what happens when multiple headers are present, but 
if a single
Category header element can be written on multiple lines. i.e. if the 
following
representation of a category, taken from page 20:

Category: storage;
    scheme="http://schemas.ogf.org/occi/infrastructure#";
    class="kind";
    title="Storage Resource";
    rel="http://schemas.ogf.org/occi/core#resource";
    location="/storage/";
    attributes="occi.storage.size{required} 
occi.storage.state{immutable}";
    
actions="http://schemas.ogf.org/occi/infrastructure/storage/action#resize 
...";

Is acceptable in the answer as is, with the newlines between elements 
and the
indentation, or if it is supposed to be on a single line.

Thanks in advance,
    Vincenzo

On Mon, 25 Feb 2013 16:10:00 +0100, Andy Edmonds wrote:
> Hi Vincenzo
> Having a the same header repeated multiple times with different 
> values
> is allowable by the HTTP spec. OCCI respects (OCCI always aims to
> respect the HTTP spec RFC2616) this hence why you may see two
> different renderings: one with all values "compressed" into one 
> header
> line or multiple same headers with different values. If you 
> "compress"
> each value must be ',' delineated. Note these rules also apply if the
> content is supplied in the body (OCCI specific).
>
> HTH,
>
> Andy
>
> Andy Edmonds Æ
> Senior Researcher
> Institute of Information Technology
> Zürich University of Applied Sciences
> http://www.cloudcomp.ch [4], @dizz
>
> On 25 February 2013 16:03, Vincenzo Ciaschini  wrote:
>
>> Dear members of the occi-wg,
>>
>>    In the federated clouds working group, we are having a
>> discussion about the interpretation of the HTTP rendering of the
>> OCCI standard (document GFD.185,
>> http://ogf.org/documents/GFD.185.pdf [1])
>>
>>    Our doubt is the following.
>>
>>    In several examples in the document, for examples in section
>> 3.4, page 8 or in section 3.5.1, page 20, we see Category: elements
>> laid out in multiple lines.
>>
>>    Our doubt is if this examples are normative, and thus it is
>> acceptable to write them in multiple lines, or if this had been done
>> just for readability, and the answers from the OCCI server should
>> actually lay out a Category in a single line.
>>
>>    In the interest of interoperability among our different
>> implementations, can you please clarify this point?
>>
>> Thanks in advance,
>>    On behalf of the Federated Clouds Working Group
>> _______________________________________________
>> occi-wg mailing list
>> occi-wg at ogf.org [2]
>> https://www.ogf.org/mailman/listinfo/occi-wg [3]
>
>
>
> Links:
> ------
> [1] http://ogf.org/documents/GFD.185.pdf
> [2] mailto:occi-wg at ogf.org
> [3] https://www.ogf.org/mailman/listinfo/occi-wg
> [4] http://www.cloudcomp.ch
> [5] mailto:vincenzo.ciaschini at cnaf.infn.it



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