cubicweb_seda/xsd2concepts.py
author Sylvain Thénault <sylvain.thenault@logilab.fr>
Tue, 12 Dec 2017 17:57:57 +0100
changeset 2915 451328134bee
parent 2377 3315ecaad760
child 3021 2212adf2c673
permissions -rw-r--r--
[entities] Add a safety belt avoid unexpected error in some corner case e.g. while debugging an instance I attempted to display result of 'Any X, C WHERE X container C' with unexpectedly to container for the entity, but I wasn't able to display it because rset.one() raised an error since len(rset) was 2. Even if the caller may be wrong, it seems ok to not call rset.one() if function is called in an erroneous context and simply return None in such case.

# copyright 2016 LOGILAB S.A. (Paris, FRANCE), all rights reserved.
# contact http://www.logilab.fr -- mailto:contact@logilab.fr
#
# This program 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.
#
# This program 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 this program. If not, see <http://www.gnu.org/licenses/>.
"""Extract concepts scheme as Linked CSV from XSD file.

XSD parsing is done using generateDS, which has been copied into the `gends` directory (only the
used bits).
"""
import csv
import os.path as osp

from xsd import seda_xsd, un_camel_case

import sys
sys.exit('broken until pyxst stop using a set for textual_content_values')


def generate_csv(output_dir):
    xschema = seda_xsd()
    for xstype, attr_or_idx in (
            ('Diameter', 'unit'),
            ('Weight', 'unit'),
            ('FinalAction', 0),
            ('FinalAction', 1),
            ('KeywordType', 0),
            ('DescriptionLevel', 0)):
        xselements = xschema.elts_index['{fr:gouv:culture:archivesdefrance:seda:v2.0}' + xstype]
        if isinstance(attr_or_idx, int):
            xselement = xselements[attr_or_idx]
        else:
            assert len(xselements) == 1
            xselement = xselements[0].attributes[attr_or_idx].target
        with open(osp.join(output_dir, un_camel_case(xstype) + '.csv'), 'w') as stream:
            writer = csv.writer(stream, delimiter=';', quotechar='"', quoting=csv.QUOTE_MINIMAL)
            _GENERATORS['{0}_{1}'.format(xstype, attr_or_idx)](writer,
                                                               xselement.textual_content_values)


def _generate_pref_alt(writer, values):
    writer.writerow(['#', '$id', 'label', 'alt label'])
    writer.writerow(['type', 'url', 'string', 'string'])
    writer.writerow(['lang', '', 'en', 'en'])
    writer.writerow(['url', 'skos:Concept', 'skos:prefLabel', 'skos:altLabel'])

    def writerow(row):
        assert 1 <= len(row) <= 2, len(row)
        if len(row) == 1:
            row.append('')
        writer.writerow(['', ''] + row)

    row = []
    for value in values:
        if not row or value.isupper():
            row.append(value)
        else:
            writerow(row)
            row = [value]
    writerow(row)


def _generate_pref(writer, values):
    writer.writerow(['#', '$id', 'label'])
    writer.writerow(['type', 'url', 'string'])
    writer.writerow(['lang', '', 'en'])
    writer.writerow(['url', 'skos:Concept', 'skos:prefLabel'])
    for value in values:
        writer.writerow(['', '', value])


_GENERATORS = {
    'Diameter_unit': _generate_pref_alt,
    'Weight_unit': _generate_pref_alt,
    'FinalAction_0': _generate_pref,
    'FinalAction_1': _generate_pref,
    'KeywordType_0': _generate_pref,
    'DescriptionLevel_0': _generate_pref,
}

if __name__ == '__main__':
    import sys
    if len(sys.argv) == 2:
        output_dir = sys.argv[1]
    elif len(sys.argv) < 2:
        output_dir = '.'
    else:
        raise Exception('too much arguments')
    generate_csv(output_dir)