How to convert the apple address book to RDF

These tools exist to do it:

• ​Richard Newman's python converter. there is an ​older version
• ​AB-FOAF by Olivier Gutknecht - a cocoa / python program.
• ​XML-FOAFKnows-FromvCard by KjetilK. Does only foaf:knows creation

Sources: Libby Miller, ​This blog entry.

The DataSource itself

It should copy/paste from the RDF-File datasource: source:trunk/gnowsis/src/org/gnowsis/adapters/rdffile/RDFFileDataSource.java