def _lookup_res(self, resource_source, res_name):
res = resource_source(Name=res_name)
n = len(res)
if n == 0:
return None
elif n > 1:
raise exceptions.HyperVClusterException(
_('Duplicate resource name %s found.') % res_name)
else:
return res[0]
def _init_hyperv_conn(self, host):
try:
self._conn_cluster = self._get_wmi_conn(
self._MS_CLUSTER_NAMESPACE % host)
self._cluster = self._conn_cluster.MSCluster_Cluster()[0]
# extract this node name from cluster's path
path = self._cluster.path_()
self._this_node = re.search(r'\\\\(.*)\\root', path,
re.IGNORECASE).group(1)
except AttributeError:
raise exceptions.HyperVClusterException(
_("Could not initialize cluster wmi connection."))
def check_cluster_state(self):
if len(self._get_cluster_nodes()) < 1:
raise exceptions.HyperVClusterException(
_("Not enough cluster nodes."))