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      1 # Copyright 2014-2015, Tresys Technology, LLC
      2 #
      3 # This file is part of SETools.
      4 #
      5 # SETools is free software: you can redistribute it and/or modify
      6 # it under the terms of the GNU Lesser General Public License as
      7 # published by the Free Software Foundation, either version 2.1 of
      8 # the License, or (at your option) any later version.
      9 #
     10 # SETools is distributed in the hope that it will be useful,
     11 # but WITHOUT ANY WARRANTY; without even the implied warranty of
     12 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
     13 # GNU Lesser General Public License for more details.
     14 #
     15 # You should have received a copy of the GNU Lesser General Public
     16 # License along with SETools.  If not, see
     17 # <http://www.gnu.org/licenses/>.
     18 #
     19 # pylint: disable=no-member,attribute-defined-outside-init,abstract-method
     20 import re
     21 
     22 from . import query
     23 from .descriptors import CriteriaDescriptor
     24 
     25 
     26 class ComponentQuery(query.PolicyQuery):
     27 
     28     """Base class for SETools component queries."""
     29 
     30     name = CriteriaDescriptor("name_regex")
     31     name_regex = False
     32 
     33     def _match_name(self, obj):
     34         """Match the object to the name criteria."""
     35         if not self.name:
     36             # if there is no criteria, everything matches.
     37             return True
     38 
     39         return self._match_regex(obj, self.name, self.name_regex)
     40