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# Copyright 2015, Tresys Technology, LLC
#
# This file is part of SETools.
#
# SETools 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.
#
# SETools 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 SETools. If not, see
# <http://www.gnu.org/licenses/>.
#
import logging
from .mixins import MatchAlias, MatchName
from .query import PolicyQuery
class CategoryQuery(MatchAlias, MatchName, PolicyQuery):
"""
Query MLS Categories
Parameter:
policy The policy to query.
Keyword Parameters/Class attributes:
name The name of the category to match.
name_regex If true, regular expression matching will
be used for matching the name.
alias The alias name to match.
alias_regex If true, regular expression matching
will be used on the alias names.
"""
def __init__(self, policy, **kwargs):
super(CategoryQuery, self).__init__(policy, **kwargs)
self.log = logging.getLogger(__name__)
def results(self):
"""Generator which yields all matching categories."""
self.log.info("Generating category results from {0.policy}".format(self))
self._match_name_debug(self.log)
self._match_alias_debug(self.log)
for cat in self.policy.categories():
if not self._match_name(cat):
continue
if not self._match_alias(cat):
continue
yield cat
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