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# 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.
from toscaparser.common.exception import ExceptionCollector
from toscaparser.common.exception import InvalidSchemaError
from toscaparser.common.exception import TOSCAException
from toscaparser.utils.gettextutils import _
class PropertyDef(object):
'''TOSCA built-in Property type.'''
VALID_PROPERTY_KEYNAMES = (PROPERTY_KEYNAME_DEFAULT,
PROPERTY_KEYNAME_REQUIRED,
PROPERTY_KEYNAME_STATUS) = \
('default', 'required', 'status')
PROPERTY_REQUIRED_DEFAULT = True
VALID_REQUIRED_VALUES = ['true', 'false']
VALID_STATUS_VALUES = (PROPERTY_STATUS_SUPPORTED,
PROPERTY_STATUS_EXPERIMENTAL) = \
('supported', 'experimental')
PROPERTY_STATUS_DEFAULT = PROPERTY_STATUS_SUPPORTED
def __init__(self, name, value=None, schema=None):
self.name = name
self.value = value
self.schema = schema
self._status = self.PROPERTY_STATUS_DEFAULT
self._required = self.PROPERTY_REQUIRED_DEFAULT
# Validate required 'type' property exists
try:
self.schema['type']
except KeyError:
msg = (_('Schema definition of "%(pname)s" must have a "type" '
'attribute.') % dict(pname=self.name))
ExceptionCollector.appendException(
InvalidSchemaError(message=msg))
if self.schema:
self._load_required_attr_from_schema()
self._load_status_attr_from_schema()
@property
def default(self):
if self.schema:
for prop_key, prop_value in self.schema.items():
if prop_key == self.PROPERTY_KEYNAME_DEFAULT:
return prop_value
return None
@property
def required(self):
return self._required
def _load_required_attr_from_schema(self):
# IF 'required' keyname exists verify it's a boolean,
# if so override default
if self.PROPERTY_KEYNAME_REQUIRED in self.schema:
value = self.schema[self.PROPERTY_KEYNAME_REQUIRED]
if isinstance(value, bool):
self._required = value
else:
valid_values = ', '.join(self.VALID_REQUIRED_VALUES)
attr = self.PROPERTY_KEYNAME_REQUIRED
TOSCAException.generate_inv_schema_property_error(self,
attr,
value,
valid_values)
@property
def status(self):
return self._status
def _load_status_attr_from_schema(self):
# IF 'status' keyname exists verify it's a valid value,
# if so override default
if self.PROPERTY_KEYNAME_STATUS in self.schema:
value = self.schema[self.PROPERTY_KEYNAME_STATUS]
if value in self.VALID_STATUS_VALUES:
self._status = value
else:
valid_values = ', '.join(self.VALID_STATUS_VALUES)
attr = self.PROPERTY_KEYNAME_STATUS
TOSCAException.generate_inv_schema_property_error(self,
attr,
value,
valid_values)
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