diff options
Diffstat (limited to 'nova/compute/provider_tree.py')
| -rw-r--r-- | nova/compute/provider_tree.py | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/nova/compute/provider_tree.py b/nova/compute/provider_tree.py index f2f1f29d94..98abb1ede2 100644 --- a/nova/compute/provider_tree.py +++ b/nova/compute/provider_tree.py @@ -48,6 +48,13 @@ class _Provider(object): # dict of inventory records, keyed by resource class self.inventory = {} + def get_provider_uuids(self): + """Returns a set of UUIDs of this provider and all its descendants.""" + ret = set([self.uuid]) + for child in self.children.values(): + ret |= child.get_provider_uuids() + return ret + def find(self, search): if self.name == search or self.uuid == search: return self @@ -129,6 +136,25 @@ class ProviderTree(object): p = _Provider(cn.hypervisor_hostname, cn.uuid) self.roots.append(p) + def get_provider_uuids(self, name_or_uuid=None): + """Return a set of the UUIDs of all providers (in a subtree). + + :param name_or_uuid: Provider name or UUID representing the root of a + subtree for which to return UUIDs. If not + specified, the method returns all UUIDs in the + ProviderTree. + """ + if name_or_uuid is not None: + with self.lock: + return self._find_with_lock(name_or_uuid).get_provider_uuids() + + # If no name_or_uuid, get UUIDs for all providers recursively. + ret = set() + with self.lock: + for root in self.roots: + ret |= root.get_provider_uuids() + return ret + def remove(self, name_or_uuid): """Safely removes the provider identified by the supplied name_or_uuid parameter and all of its children from the tree. |