def _get_resource_provider_by_uuid(self, context, provider_uuid):
query = model_query(models.ResourceProvider)
query = query.filter_by(uuid=provider_uuid)
try:
return query.one()
except NoResultFound:
raise exception.ResourceProviderNotFound(
resource_provider=provider_uuid)
def destroy_resource_provider(self, context, provider_id):
session = get_session()
with session.begin():
query = model_query(models.ResourceProvider, session=session)
query = add_identity_filter(query, provider_id)
count = query.delete()
if count != 1:
raise exception.ResourceProviderNotFound(
resource_provider=provider_id)
def _get_resource_provider_by_name(self, context, provider_name):
query = model_query(models.ResourceProvider)
query = query.filter_by(name=provider_name)
try:
return query.one()
except NoResultFound:
raise exception.ResourceProviderNotFound(
resource_provider=provider_name)
except MultipleResultsFound:
raise exception.Conflict('Multiple resource providers exist with '
'same name. Please use the uuid instead.')
def _do_update_resource_provider(self, provider_id, values):
session = get_session()
with session.begin():
query = model_query(models.ResourceProvider, session=session)
query = add_identity_filter(query, provider_id)
try:
ref = query.with_lockmode('update').one()
except NoResultFound:
raise exception.ResourceProviderNotFound(
resource_provider=provider_id)
ref.update(values)
return ref