Github user ran-z commented on a diff in the pull request:
https://github.com/apache/incubator-ariatosca/pull/191#discussion_r136716094
--- Diff: aria/modeling/service_instance.py ---
@@ -228,6 +228,80 @@ def service_template_fk(cls):
:type: :class:`~datetime.datetime`
""")
+ def get_node_by_type(self, type_name):
+ """
+ Finds the first node of a type (or descendent type).
+ """
+ service_template = self.service_template
+
+ if service_template is not None:
+ node_types = service_template.node_types
+ if node_types is not None:
+ for node in self.nodes.itervalues():
+ if node_types.is_descendant(type_name, node.type.name):
+ return node
+
+ return None
+
+ def get_policy_by_type(self, type_name):
+ """
+ Finds the first policy of a type (or descendent type).
+ """
+ service_template = self.service_template
+
+ if service_template is not None:
+ policy_types = service_template.policy_types
+ if policy_types is not None:
+ for policy in self.policies.itervalues():
+ if policy_types.is_descendant(type_name,
policy.type.name):
+ return policy
+
+ return None
+
+ def satisfy_requirements(self):
+ satisfied = True
+ for node in self.nodes.itervalues():
+ if not node.satisfy_requirements():
+ satisfied = False
+ return satisfied
+
+ def validate_capabilities(self):
+ satisfied = True
+ for node in self.nodes.itervalues():
+ if not node.validate_capabilities():
+ satisfied = False
+ return satisfied
+
+ def find_hosts(self):
+ for node in self.nodes.itervalues():
+ node.find_host()
+
+ def configure_operations(self):
+ for node in self.nodes.itervalues():
+ node.configure_operations()
+ for group in self.groups.itervalues():
+ group.configure_operations()
+ for operation in self.workflows.itervalues():
+ operation.configure()
+
+ def is_node_a_target(self, target_node):
+ for node in self.nodes.itervalues():
+ if self._is_node_a_target(node, target_node):
+ return True
+ return False
+
+ def _is_node_a_target(self, source_node, target_node):
--- End diff --
Pretty confused by this.
1) Who's using this?
2) Why not check the node's `incoming_relationships`?
3) Why is the private helper function recursive? The main public function
already goes over all nodes and checks each one for a source node.
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