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-rw-r--r--tosca2heat/tosca-parser/toscaparser/tpl_relationship_graph.py46
1 files changed, 46 insertions, 0 deletions
diff --git a/tosca2heat/tosca-parser/toscaparser/tpl_relationship_graph.py b/tosca2heat/tosca-parser/toscaparser/tpl_relationship_graph.py
new file mode 100644
index 0000000..1a5ea7b
--- /dev/null
+++ b/tosca2heat/tosca-parser/toscaparser/tpl_relationship_graph.py
@@ -0,0 +1,46 @@
+# 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)