def count(self, context, resource_name, *args, **kwargs):
"""Count a resource.
For countable resources, invokes the count() function and
returns its result. Arguments following the context and
resource are passed directly to the count function declared by
the resource.
:param context: The request context, for access checks.
:param resource_name: The name of the resource, as a string.
"""
# Get the resource
res = resource_registry.get_resource(resource_name)
if not res or not hasattr(res, 'count'):
raise exceptions.QuotaResourceUnknown(unknown=[resource_name])
return res.count(context, *args, **kwargs)
def count(self, context, resource_name, *args, **kwargs):
"""Count a resource.
For countable resources, invokes the count() function and
returns its result. Arguments following the context and
resource are passed directly to the count function declared by
the resource.
:param context: The request context, for access checks.
:param resource_name: The name of the resource, as a string.
"""
# Get the resource
res = resource_registry.get_resource(resource_name)
if not res or not hasattr(res, 'count'):
raise exceptions.QuotaResourceUnknown(unknown=[resource_name])
return res.count(context, *args, **kwargs)
def _call_on_drivers(self, method_name, context,
continue_on_failure=False, raise_db_retriable=False):
super(MechanismManager, self)._call_on_drivers(
method_name, context, continue_on_failure=False,
raise_db_retriable=False)
if method_name.endswith('_precommit'):
# This does the same thing as:
# https://github.com/openstack/neutron/blob/newton-eol/neutron/
# api/v2/base.py#L489
# but from within the scope of the plugin's transaction, such
# that if it fails, everything that happened prior to this in
# precommit phase can also be rolled back.
resource_name = method_name.replace('_precommit', '').replace(
'create_', '').replace('update_', '').replace(
'delete_', '')
tracked_resource = resource_registry.get_resource(resource_name)
tracked_resource._dirty_tenants.add(context.current['tenant_id'])
resource_registry.set_resources_dirty(context._plugin_context)
