def delete_servicechain_spec(self, context, servicechain_spec_id):
session = context.session
with session.begin(subtransactions=True):
sc_spec = self.get_servicechain_spec(context, servicechain_spec_id)
sc_context = servicechain_context.ServiceChainSpecContext(
self, context, sc_spec)
self.driver_manager.delete_servicechain_spec_precommit(sc_context)
super(ServiceChainPlugin,
self).delete_servicechain_spec(context, servicechain_spec_id)
try:
self.driver_manager.delete_servicechain_spec_postcommit(sc_context)
except Exception:
LOG.exception(
_("delete_servicechain_spec_postcommit failed "
"for servicechain_spec %s"), servicechain_spec_id)
def create_servicechain_spec(self, context, servicechain_spec):
session = context.session
with session.begin(subtransactions=True):
result = super(ServiceChainPlugin, self).create_servicechain_spec(
context, servicechain_spec)
self._validate_shared_create(context, result, 'servicechain_spec')
sc_context = servicechain_context.ServiceChainSpecContext(
self, context, result)
self.driver_manager.create_servicechain_spec_precommit(sc_context)
try:
self.driver_manager.create_servicechain_spec_postcommit(sc_context)
except Exception:
with excutils.save_and_reraise_exception():
LOG.error(
_("driver_manager.create_servicechain_postcommit "
"failed, deleting servicechain_spec %s"), result['id'])
self.delete_servicechain_spec(context, result['id'])
return result
def update_servicechain_spec(self, context, servicechain_spec_id,
servicechain_spec):
session = context.session
with session.begin(subtransactions=True):
original_sc_spec = self.get_servicechain_spec(
context, servicechain_spec_id)
updated_sc_spec = super(ServiceChainPlugin,
self).update_servicechain_spec(
context, servicechain_spec_id,
servicechain_spec)
self._validate_shared_update(context, original_sc_spec,
updated_sc_spec, 'servicechain_spec')
sc_context = servicechain_context.ServiceChainSpecContext(
self, context, updated_sc_spec,
original_sc_spec=original_sc_spec)
self.driver_manager.update_servicechain_spec_precommit(
sc_context)
self.driver_manager.update_servicechain_spec_postcommit(sc_context)
return updated_sc_spec