# 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 import exception from toscaparser import functions from toscaparser.groups import NodeGroup from toscaparser.nodetemplate import NodeTemplate from toscaparser.parameters import Input from toscaparser.parameters import Output from toscaparser.relationship_template import RelationshipTemplate from toscaparser.tpl_relationship_graph import ToscaGraph # Topology template key names SECTIONS = (DESCRIPTION, INPUTS, NODE_TEMPLATES, RELATIONSHIP_TEMPLATES, OUTPUTS, GROUPS, SUBSTITUION_MAPPINGS) = \ ('description', 'inputs', 'node_templates', 'relationship_templates', 'outputs', 'groups', 'substitution_mappings') log = logging.getLogger("tosca.model") class TopologyTemplate(object): '''Load the template data.''' def __init__(self, template, custom_defs, rel_types=None, parsed_params=None): self.tpl = template if self.tpl: self.custom_defs = custom_defs self.rel_types = rel_types self.parsed_params = parsed_params self._validate_field() self.description = self._tpl_description() self.inputs = self._inputs() self.relationship_templates = self._relationship_templates() self.nodetemplates = self._nodetemplates() self.outputs = self._outputs() if hasattr(self, 'nodetemplates'): self.graph = ToscaGraph(self.nodetemplates) self.groups = self._groups() self._process_intrinsic_functions() def _inputs(self): inputs = [] for name, attrs in self._tpl_inputs().items(): input = Input(name, attrs) if self.parsed_params and name in self.parsed_params: input.validate(self.parsed_params[name]) inputs.append(input) return inputs def _nodetemplates(self): nodetemplates = [] tpls = self._tpl_nodetemplates() if tpls: for name in tpls: tpl = NodeTemplate(name, tpls, self.custom_defs, self.relationship_templates, self.rel_types) if (tpl.type_definition and (tpl.type in tpl.type_definition.TOSCA_DEF or (tpl.type not in tpl.type_definition.TOSCA_DEF and bool(tpl.custom_def)))): tpl.validate(self) nodetemplates.append(tpl) return nodetemplates def _relationship_templates(self): rel_templates = [] tpls = self._tpl_relationship_templates() for name in tpls: tpl = RelationshipTemplate(tpls[name], name, self.custom_defs) rel_templates.append(tpl) return rel_templates def _outputs(self): outputs = [] for name, attrs in self._tpl_outputs().items(): output = Output(name, attrs) output.validate() outputs.append(output) return outputs def _substitution_mappings(self): pass def _groups(self): groups = [] for group_name, group_tpl in self._tpl_groups().items(): member_names = group_tpl.get('members') if member_names and len(member_names) > 1: group = NodeGroup(group_name, group_tpl, self._get_group_memerbs(member_names)) groups.append(group) else: exception.ExceptionCollector.appendException(ValueError) return groups def _get_group_memerbs(self, member_names): member_nodes = [] for member in member_names: for node in self.nodetemplates: if node.name == member: member_nodes.append(node) return member_nodes # topology template can act like node template # it is exposed by substitution_mappings. def nodetype(self): pass def capabilities(self): pass def requirements(self): pass def _tpl_description(self): description = self.tpl.get(DESCRIPTION) if description: return description.rstrip() def _tpl_inputs(self): return self.tpl.get(INPUTS) or {} def _tpl_nodetemplates(self): return self.tpl.get(NODE_TEMPLATES) def _tpl_relationship_templates(self): return self.tpl.get(RELATIONSHIP_TEMPLATES) or {} def _tpl_outputs(self): return self.tpl.get(OUTPUTS) or {} def _tpl_substitution_mappings(self): return self.tpl.get(SUBSTITUION_MAPPINGS) or {} def _tpl_groups(self): return self.tpl.get(GROUPS) or {} def _validate_field(self): for name in self.tpl: if name not in SECTIONS: exception.ExceptionCollector.appendException( exception.UnknownFieldError(what='Template', field=name)) def _process_intrinsic_functions(self): """Process intrinsic functions Current implementation processes functions within node template properties, requirements, interfaces inputs and template outputs. """ if hasattr(self, 'nodetemplates'): for node_template in self.nodetemplates: for prop in node_template.get_properties_objects(): prop.value = functions.get_function(self, node_template, prop.value) for interface in node_template.interfaces: if interface.inputs: for name, value in interface.inputs.items(): interface.inputs[name] = functions.get_function( self, node_template, value) if node_template.requirements: for req in node_template.requirements: rel = req for req_name, req_item in req.items(): if isinstance(req_item, dict): rel = req_item.get('relationship') break if rel and 'properties' in rel: for key, value in rel['properties'].items(): rel['properties'][key] = \ functions.get_function(self, req, value) if node_template.get_capabilities_objects(): for cap in node_template.get_capabilities_objects(): if cap.get_properties_objects(): for prop in cap.get_properties_objects(): propvalue = functions.get_function( self, node_template, prop.value) if isinstance(propvalue, functions.GetInput): propvalue = propvalue.result() for p, v in cap._properties.items(): if p == prop.name: cap._properties[p] = propvalue for rel, node in node_template.relationships.items(): rel_tpls = node.relationship_tpl if rel_tpls: for rel_tpl in rel_tpls: for interface in rel_tpl.interfaces: if interface.inputs: for name, value in \ interface.inputs.items(): interface.inputs[name] = \ functions.get_function(self, rel_tpl, value) for output in self.outputs: func = functions.get_function(self, self.outputs, output.value) if isinstance(func, functions.GetAttribute): output.attrs[output.VALUE] = func