[Tracker] Tracker plugin for Calibre dev question

[gnome spraynpray spamgourmet org]

Dear developers of tracker,

Iâm thinking of developing a tracker plugin for Calibre.

Calibre is an ebook managing application. It manage ebook in a similar
way Banshee or Rythmbox manage music. It has a database where ebook
metadata is stored that have far more information on ebook that the file
themselves. This is the reason why I think that a plugin would be more
helpful than just an extractor.

I searched a bit on how to do that in the documentation of tracker and
Iâm honestly lost in all of it. If I get it correctly, some data about
the book need to be inserted in the sparql base, and it can be done with
some INSERT/UPDATE/REPLACE query using tracker-sparql. Iâve tried to
search for which format is used to store Document (as opposed to music
or contact), and I didnât find anything. Apparently there is also Author
information. It seems to me there is a format used for those but I canât
find where this information is described. I thought of trying to look up
extracted information but it seems a bit tiresome to do.
Iâd appreciate if you could point me in the right direction.

Regards,
-- 
Vincent