[Gzz] Storm URIs

[Benja Fallenstein]

Hi,

In the rewrite of Mediaserver to Storm, I am planning to change the 
package to use non-standard URIs:

   storm:block:<HEX>
   storm:pointer:<URI>

<HEX> is the hexadecimal representation of a block id. (Canonically, the 
hex digits are uppercase, but case doesn't matter when reading them in.) 
<URI> is any URN-like (i.e., persistent) URI, used as the identifier of 
a Storm pointer. If a pointer record contains a non-URI string as the 
pointer id (i.e., an old-style cell id), this will be interpreted as 
"storm:pointer:urn:urn-5:<OLD-ID>". (I should increment the gzz pointer 
format version number...)

Non-standard URI schemes are not nice, but relatively common practice 
(unfortunately). I think that when things have settled down more, we 
should file an informal RFC applying for a urn:storm namespace, but not 
yet. (We'll then deprecate storm: URIs.) The RFC process may bring 
changes in semantics with it, of course.

Alternatives to the above scheme include using x-storm: or urn:x-storm: 
for now. Maybe these are better. (URIs actually don't have the x- 
mechanism in the standard though, AFAIK.) Opinions?

- Benja