[repository] #1460066: backport datafeed cube as cubicweb source
* add some attributes to CWSource to handle this kind of source
(not natural to put everything in 'config' string). Adding a CWSource
subclass has been attempted then rollbacked because it adds pain
to handle multi-sources planning and it introduce an ambiguity on
a generic relation (cw_source), which may be a penalty in multiple
case
* data feed sources are a new kind of source, namely 'copy based',
which have no effect on the query planner
* a data feed source is associated to a list of url and a parser (appobjects
in the 'parsers' registry
* entities imported by a data feed have cwuri set to their url on the distant
site, their cw_source relation point to the data feed source, though their
source stored in the entities table (returned by cw_metainformation) is their
physical source, hence 'system'
# copyright 2003-2010 LOGILAB S.A. (Paris, FRANCE), all rights reserved.
# contact http://www.logilab.fr/ -- mailto:contact@logilab.fr
#
# This file is part of CubicWeb.
#
# CubicWeb is free software: you can redistribute it and/or modify it under the
# terms of the GNU Lesser General Public License as published by the Free
# Software Foundation, either version 2.1 of the License, or (at your option)
# any later version.
#
# CubicWeb is distributed in the hope that it will be useful, but WITHOUT
# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
# FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
# details.
#
# You should have received a copy of the GNU Lesser General Public License along
# with CubicWeb. If not, see <http://www.gnu.org/licenses/>.
"""map standard cubicweb schema to xml vocabularies"""
from yams import xy
xy.register_prefix('rdf', 'http://www.w3.org/1999/02/22-rdf-syntax-ns#')
xy.register_prefix('dc', 'http://purl.org/dc/elements/1.1/')
xy.register_prefix('foaf', 'http://xmlns.com/foaf/0.1/')
xy.register_prefix('doap', 'http://usefulinc.com/ns/doap#')
xy.register_prefix('sioc', 'http://rdfs.org/sioc/ns#')
xy.register_prefix('owl', 'http://www.w3.org/2002/07/owl#')
xy.register_prefix('dcterms', 'http://purl.org/dc/terms/')
xy.add_equivalence('creation_date', 'dc:date')
xy.add_equivalence('created_by', 'dc:creator')
xy.add_equivalence('description', 'dc:description')
xy.add_equivalence('CWUser', 'foaf:Person')
xy.add_equivalence('CWUser login', 'foaf:Person dc:title')
xy.add_equivalence('CWUser surname', 'foaf:Person foaf:name')