def __init__(self, region_name=None):
# Check if objects are cached and try to use those
self.region_name = region_name
if 'keystone' in OpenStackDriver.os_clients_dict and \
self._is_token_valid():
self.keystone_client = OpenStackDriver.os_clients_dict['keystone']
else:
self.keystone_client = KeystoneClient()
OpenStackDriver.os_clients_dict['keystone'] = self.keystone_client
self.disabled_quotas = self._get_disabled_quotas(region_name)
if region_name in OpenStackDriver.os_clients_dict and \
self._is_token_valid():
LOG.info('Using cached OS client objects')
self.nova_client = OpenStackDriver.os_clients_dict[region_name][
'nova']
self.cinder_client = OpenStackDriver.os_clients_dict[region_name][
'cinder']
self.neutron_client = OpenStackDriver.os_clients_dict[region_name][
'neutron']
else:
# Create new objects and cache them
LOG.info(_("Creating fresh OS Clients objects"))
self.neutron_client = NeutronClient(region_name,
self.disabled_quotas,
self.keystone_client.session)
self.nova_client = NovaClient(region_name,
self.keystone_client.session,
self.disabled_quotas)
self.cinder_client = CinderClient(region_name,
self.disabled_quotas,
self.keystone_client.session)
OpenStackDriver.os_clients_dict[
region_name] = collections.defaultdict(dict)
OpenStackDriver.os_clients_dict[region_name][
'nova'] = self.nova_client
OpenStackDriver.os_clients_dict[region_name][
'cinder'] = self.cinder_client
OpenStackDriver.os_clients_dict[region_name][
'neutron'] = self.neutron_client
