[Kde-pim] Akonadi::FileStore

[Kevin Krammer]

I've just imported a couple of classes into playground/pim/akonadi/filestore

Executive summary: akonadi/filestore is a testbed for evaluating ideas for 
better "single file multiple items" handling.

Long version:
we want our single file resources to share as much code as possible which 
currently boils down to delegating almost all file I/O to the type specific 
subclasses.

The main reason is that each type is quite different, e.g. no common base 
class, different style of shared pointer handling, different parsing style, 
etc.

So one idea is to abstract the file into something containing Akonadi Items 
instead of the actual data.

A second idea, which actually has been more inspired by thoughts about mail 
migration/importing, is to use a job based interface for file interaction.

There are currently two store implementations, one for testing a "parsing on 
demand" approach for VCards (subdirectory mappedvcard) and one for testing 
delivery of "full" items in the sense of with flags and attributes 
(subdirectory augmented mbox).

Both have QTest based example usage code in filestore/tests

I haven't decided yet whether I want to try a "streaming" store or a "multiple 
collections" store next.

I'll keep you posted.

Cheers,
Kevin
-- 
Kevin Krammer, KDE developer, xdg-utils developer
KDE user support, developer mentoring
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