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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.
import logging
from toscaparser.common.exception import ExceptionCollector
from toscaparser.common.exception import InvalidNodeTypeError
from toscaparser.common.exception import MissingRequiredFieldError
from toscaparser.common.exception import UnknownFieldError
log = logging.getLogger('tosca')
class SubstitutionMappings(object):
'''SubstitutionMappings class declaration
Substitution_mappings exports the topology template as an
implementation of a Node type.
'''
SECTIONS = (NODE_TYPE, CAPABILITIES, REQUIREMENTS) = \
('node_type', 'requirements', 'capabilities')
def __init__(self, sub_mapping_def, nodetemplates, inputs, outputs,
sub_mapped_node_template, custom_defs):
self.nodetemplates = nodetemplates
self.sub_mapping_def = sub_mapping_def
self.inputs = inputs or []
self.outputs = outputs or []
self.sub_mapped_node_template = sub_mapped_node_template
self.custom_defs = custom_defs or {}
self._validate()
self._capabilities = None
self._requirements = None
@classmethod
def get_node_type(cls, sub_mapping_def):
if isinstance(sub_mapping_def, dict):
return sub_mapping_def.get(cls.NODE_TYPE)
@property
def node_type(self):
return self.sub_mapping_def.get(self.NODE_TYPE)
@property
def capabilities(self):
return self.sub_mapping_def.get(self.CAPABILITIES)
@property
def requirements(self):
return self.sub_mapping_def.get(self.REQUIREMENTS)
def _validate(self):
self._validate_keys()
self._validate_type()
self._validate_inputs()
self._validate_capabilities()
self._validate_requirements()
self._validate_outputs()
def _validate_keys(self):
"""validate the keys of substitution mappings."""
for key in self.sub_mapping_def.keys():
if key not in self.SECTIONS:
ExceptionCollector.appendException(
UnknownFieldError(what='Substitution_mappings',
field=key))
def _validate_type(self):
"""validate the node_type of substitution mappings."""
node_type = self.sub_mapping_def.get(self.NODE_TYPE)
if not node_type:
ExceptionCollector.appendException(
MissingRequiredFieldError(
what=_('Substitution_mappings used in topology_template'),
required=self.NODE_TYPE))
node_type_def = self.custom_defs.get(node_type)
if not node_type_def:
ExceptionCollector.appendException(
InvalidNodeTypeError(what=node_type_def))
def _validate_inputs(self):
"""validate the inputs of substitution mappings."""
# The inputs in service template which defines substutition mappings
# must be in properties of node template wchich be mapped.
inputs_names = list(self.sub_mapped_node_template
.get_properties().keys()
if self.sub_mapped_node_template else [])
for name in inputs_names:
if name not in [input.name for input in self.inputs]:
ExceptionCollector.appendException(
UnknownFieldError(what='SubstitutionMappings',
field=name))
def _validate_capabilities(self):
"""validate the capabilities of substitution mappings."""
# The capabilites must be in node template wchich be mapped.
tpls_capabilities = self.sub_mapping_def.get(self.CAPABILITIES)
node_capabiliteys = self.sub_mapped_node_template.get_capabilities() \
if self.sub_mapped_node_template else None
for cap in node_capabiliteys.keys() if node_capabiliteys else []:
if (tpls_capabilities and
cap not in list(tpls_capabilities.keys())):
pass
# ExceptionCollector.appendException(
# UnknownFieldError(what='Substitution_mappings',
# field=cap))
def _validate_requirements(self):
"""validate the requirements of substitution mappings."""
# The requirements must be in node template wchich be mapped.
tpls_requirements = self.sub_mapping_def.get(self.REQUIREMENTS)
node_requirements = self.sub_mapped_node_template.requirements \
if self.sub_mapped_node_template else None
for req in node_requirements if node_requirements else []:
if (tpls_requirements and
req not in list(tpls_requirements.keys())):
pass
# ExceptionCollector.appendException(
# UnknownFieldError(what='Substitution_mappings',
# field=req))
def _validate_outputs(self):
"""validate the outputs of substitution mappings."""
pass
# The outputs in service template which defines substutition mappings
# must be in atrributes of node template wchich be mapped.
# outputs_names = self.sub_mapped_node_template.get_properties().
# keys() if self.sub_mapped_node_template else None
# for name in outputs_names:
# if name not in [output.name for input in self.outputs]:
# ExceptionCollector.appendException(
# UnknownFieldError(what='Substitution_mappings',
# field=name))
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