01f85e17b8
Replace the properties_def function in capabilitytype.py and statefulentitytype.py with a get_properties_def_objects() function and add a get_properties_def() function that returns a name-value dictionary, and a get_property_def(name) function that returns the value associated with the property name. Also, replace calls to properties_def with calls to get_properties_def_objects() and make use of get_properties_def() dictionary when applicable. Also, replace the properties function in capabilities.py with a get_properties_objects() function and add a get_properties() function that returns a name-value dictionary, and a get_property(name) function that reurns the value of a property name. Also, replace calls to properties with calls to get_properties_objects() and make use of get_properties() dictionary when applicable. Change-Id: I9a2c1352868e6d2d50e1257e75a889c8675d0c89 Closes-Bug: #1316275
213 lines
8.9 KiB
Python
213 lines
8.9 KiB
Python
# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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from translator.toscalib.capabilities import Capability
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from translator.toscalib.common.exception import MissingRequiredFieldError
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from translator.toscalib.common.exception import UnknownFieldError
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from translator.toscalib.common.exception import ValidationError
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from translator.toscalib.elements.interfaces import InterfacesDef
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from translator.toscalib.elements.nodetype import NodeType
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from translator.toscalib.elements.relationshiptype import RelationshipType
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from translator.toscalib.properties import Property
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class EntityTemplate(object):
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'''Base class for TOSCA templates.'''
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SECTIONS = (DERIVED_FROM, PROPERTIES, REQUIREMENTS,
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INTERFACES, CAPABILITIES, TYPE) = \
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('derived_from', 'properties', 'requirements', 'interfaces',
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'capabilities', 'type')
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def __init__(self, name, template, entity_name, custom_def=None):
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self.name = name
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self.entity_tpl = template
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self.custom_def = custom_def
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self._validate_field(self.entity_tpl)
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if entity_name == 'node_type':
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self.type_definition = NodeType(self.entity_tpl['type'],
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custom_def)
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if entity_name == 'relationship_type':
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self.type_definition = RelationshipType(self.entity_tpl['type'],
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None, custom_def)
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self._properties = None
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self._interfaces = None
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self._requirements = None
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self._capabilities = None
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@property
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def type(self):
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return self.type_definition.type
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@property
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def requirements(self):
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if self._requirements is None:
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self._requirements = self.type_definition.get_value(
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self.REQUIREMENTS,
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self.entity_tpl) or []
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return self._requirements
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@property
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def properties(self):
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if self._properties is None:
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self._properties = self._create_properties()
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return self._properties
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@property
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def interfaces(self):
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if self._interfaces is None:
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self._interfaces = self._create_interfaces()
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return self._interfaces
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@property
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def capabilities(self):
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if not self._capabilities:
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self._capabilities = self._create_capabilities()
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return self._capabilities
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def _create_capabilities(self):
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capability = []
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caps = self.type_definition.get_value(self.CAPABILITIES,
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self.entity_tpl)
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if caps:
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for name, props in caps.items():
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for c in self.type_definition.capabilities:
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if c.name == name:
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cap = Capability(name, props['properties'], c)
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capability.append(cap)
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return capability
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def _validate_properties(self, template, entitytype):
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properties = entitytype.get_value(self.PROPERTIES, template)
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self._common_validate_properties(entitytype, properties)
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def _validate_capabilities(self):
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type_capabilities = self.type_definition.capabilities
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allowed_caps = []
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if type_capabilities:
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for tcap in type_capabilities:
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allowed_caps.append(tcap.name)
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capabilities = self.type_definition.get_value(self.CAPABILITIES,
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self.entity_tpl)
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if capabilities:
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self._common_validate_field(capabilities, allowed_caps,
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'Capabilities')
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self._validate_capabilities_properties(capabilities)
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def _validate_capabilities_properties(self, capabilities):
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for cap, props in capabilities.items():
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capabilitydef = self.get_capability(cap).definition
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self._common_validate_properties(capabilitydef,
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props[self.PROPERTIES])
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#validating capability properties values
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for prop in self.get_capability(cap).get_properties_objects():
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prop.validate()
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#TODO(srinivas_tadepalli): temporary work around to validate
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# default_instances until standardized in specification
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if cap == "scalable" and prop.name == "default_instances":
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prop_dict = props[self.PROPERTIES]
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min_instances = prop_dict.get("min_instances")
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max_instances = prop_dict.get("max_instances")
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default_instances = prop_dict.get("default_instances")
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if not (min_instances <= default_instances
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<= max_instances):
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err_msg = ("Properties of template %s : "
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"default_instances value is not"
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" between min_instances and "
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"max_instances" % self.name)
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raise ValidationError(message=err_msg)
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def _common_validate_properties(self, entitytype, properties):
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allowed_props = []
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required_props = []
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for p in entitytype.get_properties_def_objects():
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allowed_props.append(p.name)
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if p.required:
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required_props.append(p.name)
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if properties:
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self._common_validate_field(properties, allowed_props,
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'Properties')
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# make sure it's not missing any property required by a tosca type
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missingprop = []
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for r in required_props:
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if r not in properties.keys():
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missingprop.append(r)
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if missingprop:
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raise MissingRequiredFieldError(
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what='Properties of template %s' % self.name,
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required=missingprop)
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else:
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if required_props:
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raise MissingRequiredFieldError(
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what='Properties of template %s' % self.name,
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required=missingprop)
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def _validate_field(self, template):
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if not isinstance(template, dict):
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raise MissingRequiredFieldError(
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what='Template %s' % self.name, required=self.TYPE)
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try:
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template[self.TYPE]
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except KeyError:
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raise MissingRequiredFieldError(
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what='Template %s' % self.name, required=self.TYPE)
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def _common_validate_field(self, schema, allowedlist, section):
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for name in schema:
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if name not in allowedlist:
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raise UnknownFieldError(
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what='%(section)s of template %(nodename)s'
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% {'section': section, 'nodename': self.name},
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field=name)
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def _create_properties(self):
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props = []
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properties = self.type_definition.get_value(self.PROPERTIES,
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self.entity_tpl) or {}
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for name, value in properties.items():
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for p in self.type_definition.get_properties_def_objects():
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if p.name == name:
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prop = Property(name, value, p.schema, self.custom_def)
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props.append(prop)
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for p in self.type_definition.get_properties_def_objects():
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if p.default is not None and p.name not in properties.keys():
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prop = Property(p.name, p.default, p.schema, self.custom_def)
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props.append(prop)
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return props
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def _create_interfaces(self):
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interfaces = []
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type_interfaces = self.type_definition.get_value(self.INTERFACES,
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self.entity_tpl)
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if type_interfaces:
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for interface_type, value in type_interfaces.items():
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for op, op_def in value.items():
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iface = InterfacesDef(self.type_definition,
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interfacetype=interface_type,
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node_template=self,
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name=op,
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value=op_def)
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interfaces.append(iface)
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return interfaces
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def get_capability(self, name):
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"""Provide named capability
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:param name: name of capability
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:return: capability object if found, None otherwise
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"""
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for cap in self.capabilities:
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if cap.name == name:
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return cap
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