tosca2heat/tosca-parser/toscaparser/elements/relationshiptype.py

   1 #    Licensed under the Apache License, Version 2.0 (the "License"); you may
   2 #    not use this file except in compliance with the License. You may obtain
   3 #    a copy of the License at
   4 #
   5 #         http://www.apache.org/licenses/LICENSE-2.0
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   7 #    Unless required by applicable law or agreed to in writing, software
   8 #    distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
   9 #    WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
  10 #    License for the specific language governing permissions and limitations
  11 #    under the License.
  12
  13 from toscaparser.elements.statefulentitytype import StatefulEntityType
  14
  15
  16 class RelationshipType(StatefulEntityType):
  17     '''TOSCA built-in relationship type.'''
  18     def __init__(self, type, capability_name=None, custom_def=None):
  19         super(RelationshipType, self).__init__(type, self.RELATIONSHIP_PREFIX,
  20                                                custom_def)
  21         self.capability_name = capability_name
  22         self.custom_def = custom_def
  23
  24     @property
  25     def parent_type(self):
  26         '''Return a relationship this reletionship is derived from.'''
  27         prel = self.derived_from(self.defs)
  28         if prel:
  29             return RelationshipType(prel)
  30
  31     @property
  32     def valid_target_types(self):
  33         return self.entity_value(self.defs, 'valid_target_types')