def validate_service_plugin_type(data, valid_values=None):
"""Validates data is a valid service plugin.
:param data: The service plugin type to validate.
:param valid_values: Not used.
:returns: None if data is a valid service plugin known to the plugin
directory.
:raises: InvalidServiceType if data is not a service known by the
plugin directory.
"""
if not directory.get_plugin(data):
raise n_exc.InvalidServiceType(service_type=data)
def _get_provider_for_flavor(self, context, flavor_id):
if flavor_id:
if self._flavors_plugin is None:
raise vpn_flavors.FlavorsPluginNotLoaded()
fl_db = self._flavors_plugin.get_flavor(context, flavor_id)
if fl_db['service_type'] != constants.VPN:
raise lib_exc.InvalidServiceType(
service_type=fl_db['service_type'])
if not fl_db['enabled']:
raise flav_exc.FlavorDisabled()
providers = self._flavors_plugin.get_flavor_next_provider(
context, fl_db['id'])
provider = providers[0].get('provider')
if provider not in self.drivers:
raise vpn_flavors.NoProviderFoundForFlavor(flavor_id=flavor_id)
else:
# Use default provider
provider = self.default_provider
LOG.debug("Selected provider %s", provider)
return provider
