1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
|
# Licensed under the Apache License, Version 2.0 (the "License"); you may
# not use this file except in compliance with the License. You may obtain
# a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations
# under the License.
import copy
import logging
import os
from toscaparser.common.exception import ExceptionCollector
from toscaparser.common.exception import ValidationError
from toscaparser.extensions.exttools import ExtTools
import toscaparser.utils.yamlparser
log = logging.getLogger('tosca')
class EntityType(object):
'''Base class for TOSCA elements.'''
SECTIONS = (DERIVED_FROM, PROPERTIES, ATTRIBUTES, REQUIREMENTS,
INTERFACES, CAPABILITIES, TYPE, ARTIFACTS) = \
('derived_from', 'properties', 'attributes', 'requirements',
'interfaces', 'capabilities', 'type', 'artifacts')
'''TOSCA definition file.'''
TOSCA_DEF_FILE = os.path.join(
os.path.dirname(os.path.abspath(__file__)),
"TOSCA_definition_1_0.yaml")
loader = toscaparser.utils.yamlparser.load_yaml
TOSCA_DEF = loader(TOSCA_DEF_FILE)
RELATIONSHIP_TYPE = (DEPENDSON, HOSTEDON, CONNECTSTO, ATTACHESTO,
LINKSTO, BINDSTO) = \
('tosca.relationships.DependsOn',
'tosca.relationships.HostedOn',
'tosca.relationships.ConnectsTo',
'tosca.relationships.AttachesTo',
'tosca.relationships.network.LinksTo',
'tosca.relationships.network.BindsTo')
NODE_PREFIX = 'tosca.nodes.'
RELATIONSHIP_PREFIX = 'tosca.relationships.'
CAPABILITY_PREFIX = 'tosca.capabilities.'
INTERFACE_PREFIX = 'tosca.interfaces.'
ARTIFACT_PREFIX = 'tosca.artifacts.'
POLICY_PREFIX = 'tosca.policies.'
GROUP_PREFIX = 'tosca.groups.'
# currently the data types are defined only for network
# but may have changes in the future.
DATATYPE_PREFIX = 'tosca.datatypes.network.'
TOSCA = 'tosca'
def derived_from(self, defs):
'''Return a type this type is derived from.'''
return self.entity_value(defs, 'derived_from')
def is_derived_from(self, type_str):
'''Check if object inherits from the given type.
Returns true if this object is derived from 'type_str'.
False otherwise.
'''
if not self.type:
return False
elif self.type == type_str:
return True
elif self.parent_type:
return self.parent_type.is_derived_from(type_str)
else:
return False
def entity_value(self, defs, key):
if key in defs:
return defs[key]
def get_value(self, ndtype, defs=None, parent=None):
value = None
if defs is None:
if not hasattr(self, 'defs'):
return None
defs = self.defs
if ndtype in defs:
# copy the value to avoid that next operations add items in the
# item definitions
value = copy.copy(defs[ndtype])
if parent:
p = self
if p:
while p:
if ndtype in p.defs:
# get the parent value
parent_value = p.defs[ndtype]
if value:
if isinstance(value, dict):
for k, v in parent_value.items():
if k not in value.keys():
value[k] = v
if isinstance(value, list):
for p_value in parent_value:
if isinstance(p_value, dict):
if p_value.keys()[0] not in [
item.keys()[0] for item in value]:
value.append(p_value)
else:
if p_value not in value:
value.append(p_value)
else:
value = copy.copy(parent_value)
p = p.parent_type
return value
def get_definition(self, ndtype):
value = None
if not hasattr(self, 'defs'):
defs = None
ExceptionCollector.appendException(
ValidationError(message="defs is " + str(defs)))
else:
defs = self.defs
if defs is not None and ndtype in defs:
value = defs[ndtype]
p = self.parent_type
if p:
inherited = p.get_definition(ndtype)
if inherited:
inherited = dict(inherited)
if not value:
value = inherited
else:
inherited.update(value)
value.update(inherited)
return value
def update_definitions(version):
exttools = ExtTools()
extension_defs_file = exttools.get_defs_file(version)
loader = toscaparser.utils.yamlparser.load_yaml
EntityType.TOSCA_DEF.update(loader(extension_defs_file))
|