Re: URIs and UUIDs

Hi


On Thu, May 30, 2013 at 4:06 PM, אנטולי קרסנר <[email protected]> wrote:

> Hi,
>
> Does Gnome have any guidelines or recommendations related to URIs and
> UUIDs?
>
> I'm writing a desktop app which stores data as RDF, and I want to give
> URIs to all RDF resources.
>
> For the resources the application defines, I assume a good choice is to
> use a URL, but that's pointless because I don't have any website to
> point to. And still, I need some format. I can make my own, but before
> that I'd like to know if Gnome has any guidelines for consistency.
>

Not a particular one that I know (if this is related to tracker, you should
ask on their ML for help)

For user-defined resources, I can't use a URI which reveals any
> information, because some of the user data is private. So I decided to
> use UUIDs, but there are two UUID libraries (one used by Linux and the
> other provided by OSSP, with C++ binding) and 5 versions of UUID. So
> again, I'd like to know if there are any guidelines.
>


Useful UUIDs from RFC 4122 are either kind of random numbers (version 4) or
some digest (version 3 or 5).

Unless you know you want a digest, you can just use version 4. I have
proposed the following patch in glib, which you can learn from, copy or
adapt to your needs:

https://bugzilla.gnome.org/show_bug.cgi?id=639078

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