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
5 # http://www.apache.org/licenses/LICENSE-2.0
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
16 from toscaparser.common.exception import ExceptionCollector
17 from toscaparser.common.exception import ValidationError
18 from toscaparser.extensions.exttools import ExtTools
19 import toscaparser.utils.yamlparser
21 log = logging.getLogger('tosca')
24 class EntityType(object):
25 '''Base class for TOSCA elements.'''
27 SECTIONS = (DERIVED_FROM, PROPERTIES, ATTRIBUTES, REQUIREMENTS,
28 INTERFACES, CAPABILITIES, TYPE, ARTIFACTS) = \
29 ('derived_from', 'properties', 'attributes', 'requirements',
30 'interfaces', 'capabilities', 'type', 'artifacts')
32 TOSCA_DEF_SECTIONS = ['node_types', 'data_types', 'artifact_types',
33 'group_types', 'relationship_types',
34 'capability_types', 'interface_types',
37 '''TOSCA definition file.'''
38 TOSCA_DEF_FILE = os.path.join(
39 os.path.dirname(os.path.abspath(__file__)),
40 "TOSCA_definition_1_0.yaml")
42 loader = toscaparser.utils.yamlparser.load_yaml
44 TOSCA_DEF_LOAD_AS_IS = loader(TOSCA_DEF_FILE)
46 # Map of definition with pre-loaded values of TOSCA_DEF_FILE_SECTIONS
48 for section in TOSCA_DEF_SECTIONS:
49 if section in TOSCA_DEF_LOAD_AS_IS.keys():
50 value = TOSCA_DEF_LOAD_AS_IS[section]
51 for key in value.keys():
52 TOSCA_DEF[key] = value[key]
54 RELATIONSHIP_TYPE = (DEPENDSON, HOSTEDON, CONNECTSTO, ATTACHESTO,
56 ('tosca.relationships.DependsOn',
57 'tosca.relationships.HostedOn',
58 'tosca.relationships.ConnectsTo',
59 'tosca.relationships.AttachesTo',
60 'tosca.relationships.network.LinksTo',
61 'tosca.relationships.network.BindsTo')
63 NODE_PREFIX = 'tosca.nodes.'
64 RELATIONSHIP_PREFIX = 'tosca.relationships.'
65 CAPABILITY_PREFIX = 'tosca.capabilities.'
66 INTERFACE_PREFIX = 'tosca.interfaces.'
67 ARTIFACT_PREFIX = 'tosca.artifacts.'
68 POLICY_PREFIX = 'tosca.policies.'
69 GROUP_PREFIX = 'tosca.groups.'
70 # currently the data types are defined only for network
71 # but may have changes in the future.
72 DATATYPE_PREFIX = 'tosca.datatypes.'
73 DATATYPE_NETWORK_PREFIX = DATATYPE_PREFIX + 'network.'
76 def derived_from(self, defs):
77 '''Return a type this type is derived from.'''
78 return self.entity_value(defs, 'derived_from')
80 def is_derived_from(self, type_str):
81 '''Check if object inherits from the given type.
83 Returns true if this object is derived from 'type_str'.
88 elif self.type == type_str:
90 elif self.parent_type:
91 return self.parent_type.is_derived_from(type_str)
95 def entity_value(self, defs, key):
96 if defs and key in defs:
99 def get_value(self, ndtype, defs=None, parent=None):
102 if not hasattr(self, 'defs'):
105 if defs and ndtype in defs:
106 # copy the value to avoid that next operations add items in the
108 value = copy.copy(defs[ndtype])
113 if p.defs and ndtype in p.defs:
114 # get the parent value
115 parent_value = p.defs[ndtype]
117 if isinstance(value, dict):
118 for k, v in parent_value.items():
119 if k not in value.keys():
121 if isinstance(value, list):
122 for p_value in parent_value:
123 if isinstance(p_value, dict):
124 if list(p_value.keys())[0] not in [
125 list(item.keys())[0] for item in
127 value.append(p_value)
129 if p_value not in value:
130 value.append(p_value)
132 value = copy.copy(parent_value)
136 def get_definition(self, ndtype):
138 if not hasattr(self, 'defs'):
140 ExceptionCollector.appendException(
141 ValidationError(message="defs is " + str(defs)))
144 if defs is not None and ndtype in defs:
148 inherited = p.get_definition(ndtype)
150 inherited = dict(inherited)
154 inherited.update(value)
155 value.update(inherited)
159 def update_definitions(version):
160 exttools = ExtTools()
161 extension_defs_file = exttools.get_defs_file(version)
162 loader = toscaparser.utils.yamlparser.load_yaml
163 nfv_def_file = loader(extension_defs_file)
165 for section in EntityType.TOSCA_DEF_SECTIONS:
166 if section in nfv_def_file.keys():
167 value = nfv_def_file[section]
168 for key in value.keys():
169 nfv_def[key] = value[key]
170 EntityType.TOSCA_DEF.update(nfv_def)