Nodetype's logical is incomplete
[parser.git] / tosca2heat / tosca-parser / toscaparser / elements / entity_type.py
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3 #    a copy of the License at
4 #
5 #         http://www.apache.org/licenses/LICENSE-2.0
6 #
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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 import copy
14 import logging
15 import os
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
20
21 log = logging.getLogger('tosca')
22
23
24 class EntityType(object):
25     '''Base class for TOSCA elements.'''
26
27     SECTIONS = (DERIVED_FROM, PROPERTIES, ATTRIBUTES, REQUIREMENTS,
28                 INTERFACES, CAPABILITIES, TYPE, ARTIFACTS) = \
29                ('derived_from', 'properties', 'attributes', 'requirements',
30                 'interfaces', 'capabilities', 'type', 'artifacts')
31
32     '''TOSCA definition file.'''
33     TOSCA_DEF_FILE = os.path.join(
34         os.path.dirname(os.path.abspath(__file__)),
35         "TOSCA_definition_1_0.yaml")
36
37     loader = toscaparser.utils.yamlparser.load_yaml
38
39     TOSCA_DEF = loader(TOSCA_DEF_FILE)
40
41     RELATIONSHIP_TYPE = (DEPENDSON, HOSTEDON, CONNECTSTO, ATTACHESTO,
42                          LINKSTO, BINDSTO) = \
43                         ('tosca.relationships.DependsOn',
44                          'tosca.relationships.HostedOn',
45                          'tosca.relationships.ConnectsTo',
46                          'tosca.relationships.AttachesTo',
47                          'tosca.relationships.network.LinksTo',
48                          'tosca.relationships.network.BindsTo')
49
50     NODE_PREFIX = 'tosca.nodes.'
51     RELATIONSHIP_PREFIX = 'tosca.relationships.'
52     CAPABILITY_PREFIX = 'tosca.capabilities.'
53     INTERFACE_PREFIX = 'tosca.interfaces.'
54     ARTIFACT_PREFIX = 'tosca.artifacts.'
55     POLICY_PREFIX = 'tosca.policies.'
56     GROUP_PREFIX = 'tosca.groups.'
57     # currently the data types are defined only for network
58     # but may have changes in the future.
59     DATATYPE_PREFIX = 'tosca.datatypes.network.'
60     TOSCA = 'tosca'
61
62     def derived_from(self, defs):
63         '''Return a type this type is derived from.'''
64         return self.entity_value(defs, 'derived_from')
65
66     def is_derived_from(self, type_str):
67         '''Check if object inherits from the given type.
68
69         Returns true if this object is derived from 'type_str'.
70         False otherwise.
71         '''
72         if not self.type:
73             return False
74         elif self.type == type_str:
75             return True
76         elif self.parent_type:
77             return self.parent_type.is_derived_from(type_str)
78         else:
79             return False
80
81     def entity_value(self, defs, key):
82         if key in defs:
83             return defs[key]
84
85     def get_value(self, ndtype, defs=None, parent=None):
86         value = None
87         if defs is None:
88             if not hasattr(self, 'defs'):
89                 return None
90             defs = self.defs
91         if ndtype in defs:
92             # copy the value to avoid that next operations add items in the
93             # item definitions
94             value = copy.copy(defs[ndtype])
95         if parent:
96             p = self
97             if p:
98                 while p:
99                     if ndtype in p.defs:
100                         # get the parent value
101                         parent_value = p.defs[ndtype]
102                         if value:
103                             if isinstance(value, dict):
104                                 for k, v in parent_value.items():
105                                     if k not in value.keys():
106                                         value[k] = v
107                             if isinstance(value, list):
108                                 for p_value in parent_value:
109                                     if p_value not in value:
110                                         value.append(p_value)
111                         else:
112                             value = copy.copy(parent_value)
113                     p = p.parent_type
114         return value
115
116     def get_definition(self, ndtype):
117         value = None
118         if not hasattr(self, 'defs'):
119             defs = None
120             ExceptionCollector.appendException(
121                 ValidationError(message="defs is " + str(defs)))
122         else:
123             defs = self.defs
124         if defs is not None and ndtype in defs:
125             value = defs[ndtype]
126         p = self.parent_type
127         if p:
128             inherited = p.get_definition(ndtype)
129             if inherited:
130                 inherited = dict(inherited)
131                 if not value:
132                     value = inherited
133                 else:
134                     inherited.update(value)
135                     value.update(inherited)
136         return value
137
138
139 def update_definitions(version):
140     exttools = ExtTools()
141     extension_defs_file = exttools.get_defs_file(version)
142
143     loader = toscaparser.utils.yamlparser.load_yaml
144
145     EntityType.TOSCA_DEF.update(loader(extension_defs_file))