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bridge_utils.py
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Fri, Oct 11, 18:21

bridge_utils.py
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## This file is part of Invenio.
## Copyright (C) 2010, 2011, 2012, 2013 CERN.
##
## Invenio is free software; you can redistribute it and/or
## modify it under the terms of the GNU General Public License as
## published by the Free Software Foundation; either version 2 of the
## License, or (at your option) any later version.
##
## Invenio 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
## General Public License for more details.
##
## You should have received a copy of the GNU General Public License
## along with Invenio; if not, write to the Free Software Foundation, Inc.,
## 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA.
import ConfigParser
import re
from six import iteritems
from invenio.legacy.bibrank.bridge_config import CFG_BIBRANK_WRD_CFG_PATH
from invenio.legacy.search_engine import get_fieldvalues
from invenio.legacy.bibindex.adminlib import get_fld_id, get_fld_tags
def get_external_word_similarity_ranker():
for line in open(CFG_BIBRANK_WRD_CFG_PATH):
for ranker in ('solr', 'xapian'):
if 'word_similarity_%s' % ranker in line:
return ranker
return False
def get_tags():
"""
Returns the tags per Solr field as a dictionary.
"""
tags = {}
for (field_name, logical_fields) in iteritems(get_logical_fields()):
tags_of_logical_fields = []
for logical_field in logical_fields:
field_id = get_fld_id(logical_field)
tags_of_logical_fields.extend([tag[3] for tag in get_fld_tags(field_id)])
tags[field_name] = tags_of_logical_fields
return tags
def get_logical_fields():
"""
Returns the logical fields per Solr field as a dictionary.
"""
fields = {}
try:
config = ConfigParser.ConfigParser()
config.readfp(open(CFG_BIBRANK_WRD_CFG_PATH))
except StandardError:
return fields
sections = config.sections()
field_pattern = re.compile('field[0-9]+')
for section in sections:
if field_pattern.search(section):
field_name = config.get(section, 'name')
if config.has_option(section, 'logical_fields'):
logical_fields = config.get(section, 'logical_fields')
fields[field_name] = [f.strip() for f in logical_fields.split(',')]
return fields
def get_field_content_in_utf8(recid, field, tag_dict, separator=' '):
"""
Returns the content of a field comprised of tags
concatenated in an UTF-8 string.
"""
content = ''
try:
values = []
for tag in tag_dict[field]:
values.extend(get_fieldvalues(recid, tag))
content = unicode(separator.join(values), 'utf-8')
except:
pass
return content

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