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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.
class ToscaGraph(object):
'''Graph of Tosca Node Templates.'''
def __init__(self, nodetemplates):
self.nodetemplates = nodetemplates
self.vertices = {}
self._create()
def _create_vertex(self, node):
if node not in self.vertices:
self.vertices[node.name] = node
def _create_edge(self, node1, node2, relationship):
if node1 not in self.vertices:
self._create_vertex(node1)
self.vertices[node1.name]._add_next(node2,
relationship)
def vertex(self, node):
if node in self.vertices:
return self.vertices[node]
def __iter__(self):
return iter(self.vertices.values())
def _create(self):
for node in self.nodetemplates:
relation = node.relationships
if relation:
for rel, nodetpls in relation.items():
for tpl in self.nodetemplates:
if tpl.name == nodetpls.name:
self._create_edge(node, tpl, rel)
self._create_vertex(node)
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