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Re: RDF Thrift : A binary format for RDF data

From: Hugh Glaser <hugh@glasers.org>
Date: Fri, 15 Aug 2014 18:08:49 +0100
Cc: Semantic Web <semantic-web@w3.org>
Message-Id: <0327C9B3-0328-4AA5-A9BB-18DCF552B1DA@glasers.org>
To: Richard Lewis <richard.lewis@gold.ac.uk>
Thanks, Richard.
Yeah.
But it can be useful if you agree to mint the same MIME type as other people :-)
Would one use "application/rdf+thrift” or "application/rdf+x-thrift”, for example?
If I remember correctly, the x- usually indicates an unregistered type, but if the type is expected to get registered one day, then people often use the x-less one in anticipation, for future-proofing.

It is especially useful to use an agreed type if you want to consume other peoples’ services/data (or let them consume yours).
Of course I realise that is rather unusual in the SemWeb world, but it does happen ;-)

Best
Hugh
On 15 Aug 2014, at 17:15, Richard Lewis <richard.lewis@gold.ac.uk> wrote:

> Hi Hugh,
> 
> While there is a process for registering media types, it's not
> necessary for media types to be deposited in some central store in
> order to build hypermedia applications using them. In fact, it's quite
> common to mint media types specifically for certain applications.
> 
> If your application design follows RESTful principles, there will be
> an application state (or probably multiple states) in which the client
> can discover the media types of resources he/she may want to
> retrieve. So if you want to make "application/rdf+thrift" (for
> example) available for some resources in your application, you can go
> right ahead; just make sure you tell the client is told that it's
> available.
> 
> Just my 2p.
> 
> Richard
> 
> At Fri, 15 Aug 2014 16:36:44 +0100,
> Hugh Glaser wrote:
>> 
>> Hi Andy,
>> Thanks.
>> Looks very useful.
>> 
>> This may be a stoopid question… :-)
>> As I am able to use this for network data exchange, presumably I can request it using conneg over http when resolving URIs.
>> So I would need a MIME type.
>> I see application/x-thrift is required in http://wiki.apache.org/thrift/ThriftIntegrationConventions?highlight=%28application%2Fx-thrift%29
>> 
>> 
>> So now the possibly stooped bit…
>> Is there a recommended variant for RDF-Thrift?
>> Because I might want to ask for the Thrift version of another content-type, such as non-LD JSON.
>> 
>> It looks like the same problem as RDF+XML, since I might want another XML content-type of the document.
>> 
>> Best
>> Hugh
>> 
>> On 15 Aug 2014, at 15:19, Andy Seaborne <andy@apache.org> wrote:
>> 
>>> RDF Binary using Apache Thrift
>>> 
>>> This is a binary format for RDF graphs, datasets and SPARQL result
>>> sets that is fast to process. [1]
>>> 
>>>  http://afs.github.io/rdf-thrift/
>>> 
>>> includes the on-the-wire description as well as an implementation.
>>> 
>>> Using Apache Thrift makes it considerably less work to integrate
>>> into existing systems and toolkits, or to build custom
>>> processing. [2]
>>> 
>>> 	Comments and feedback welcome,
>>> 	Andy
>>> 
>>> [1] The largest gain is on reading data, with rates x3 faster than
>>> parsing N-Triples.
>>> 
>>> [2] Apache thrift has a large number of implementations across a
>>> range of languages: http://wiki.apache.org/thrift/LibraryFeatures
> -- 
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> Richard Lewis
> Computing, Goldsmiths' College
> t: +44 (0)20 7078 5203
> @: lewisrichard
> http://www.transforming-musicology.org/
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Hugh Glaser
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Received on Friday, 15 August 2014 17:10:02 UTC

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