class Inventory(_HasAResourceProvider):
# Version 1.0: Initial version
# Version 1.1: Changed resource_class to allow custom strings
VERSION = '1.1'
fields = {
'id': fields.IntegerField(read_only=True),
'resource_provider': fields.ObjectField('ResourceProvider'),
'resource_class': fields.ResourceClassField(read_only=True),
'total': fields.NonNegativeIntegerField(),
'reserved': fields.NonNegativeIntegerField(default=0),
'min_unit': fields.NonNegativeIntegerField(default=1),
'max_unit': fields.NonNegativeIntegerField(default=1),
'step_size': fields.NonNegativeIntegerField(default=1),
'allocation_ratio': fields.NonNegativeFloatField(default=1.0),
}
def obj_make_compatible(self, primitive, target_version):
super(Inventory, self).obj_make_compatible(primitive, target_version)
target_version = versionutils.convert_version_to_tuple(target_version)
if target_version < (1, 1) and 'resource_class' in primitive:
rc = primitive['resource_class']
rc_cache.raise_if_custom_resource_class_pre_v1_1(rc)
@property
def capacity(self):
"""Inventory capacity, adjusted by allocation_ratio."""
return int((self.total - self.reserved) * self.allocation_ratio)
@base.remotable
def create(self):
if 'id' in self:
raise exception.ObjectActionError(action='create',
reason='already created')
_ensure_rc_cache(self._context)
updates = self._make_db(self.obj_get_changes())
db_inventory = self._create_in_db(self._context, updates)
self._from_db_object(self._context, self, db_inventory)
@base.remotable
def save(self):
if 'id' not in self:
raise exception.ObjectActionError(action='save',
reason='not created')
_ensure_rc_cache(self._context)
updates = self.obj_get_changes()
updates.pop('id', None)
self._update_in_db(self._context, self.id, updates)
@staticmethod
def _create_in_db(context, updates):
return _create_inventory_in_db(context, updates)
@staticmethod
def _update_in_db(context, id_, updates):
return _update_inventory_in_db(context, id_, updates)
class Usage(base.NovaObject):
# Version 1.0: Initial version
# Version 1.1: Changed resource_class to allow custom strings
VERSION = '1.1'
fields = {
'resource_class': fields.ResourceClassField(read_only=True),
'usage': fields.NonNegativeIntegerField(),
}
def obj_make_compatible(self, primitive, target_version):
super(Usage, self).obj_make_compatible(primitive, target_version)
target_version = versionutils.convert_version_to_tuple(target_version)
if target_version < (1, 1) and 'resource_class' in primitive:
rc = primitive['resource_class']
rc_cache.raise_if_custom_resource_class_pre_v1_1(rc)
@staticmethod
def _from_db_object(context, target, source):
for field in target.fields:
if field not in ('resource_class'):
setattr(target, field, source[field])
if 'resource_class' not in target:
rc_str = _RC_CACHE.string_from_id(source['resource_class_id'])
target.resource_class = rc_str
target._context = context
target.obj_reset_changes()
return target
class Inventory(_HasAResourceProvider):
# Version 1.0: Initial version
VERSION = '1.0'
fields = {
'id': fields.IntegerField(read_only=True),
'resource_provider': fields.ObjectField('ResourceProvider'),
'resource_class': fields.ResourceClassField(read_only=True),
'total': fields.NonNegativeIntegerField(),
'reserved': fields.NonNegativeIntegerField(default=0),
'min_unit': fields.NonNegativeIntegerField(default=1),
'max_unit': fields.NonNegativeIntegerField(default=1),
'step_size': fields.NonNegativeIntegerField(default=1),
'allocation_ratio': fields.NonNegativeFloatField(default=1.0),
}
@property
def capacity(self):
"""Inventory capacity, adjusted by allocation_ratio."""
return int((self.total - self.reserved) * self.allocation_ratio)
@base.remotable
def create(self):
if 'id' in self:
raise exception.ObjectActionError(action='create',
reason='already created')
updates = self._make_db(self.obj_get_changes())
db_inventory = self._create_in_db(self._context, updates)
self._from_db_object(self._context, self, db_inventory)
@base.remotable
def save(self):
if 'id' not in self:
raise exception.ObjectActionError(action='save',
reason='not created')
updates = self.obj_get_changes()
updates.pop('id', None)
self._update_in_db(self._context, self.id, updates)
@staticmethod
def _create_in_db(context, updates):
return _create_inventory_in_db(context, updates)
@staticmethod
def _update_in_db(context, id_, updates):
return _update_inventory_in_db(context, id_, updates)
class Usage(base.NovaObject):
# Version 1.0: Initial version
VERSION = '1.0'
fields = {
'resource_class': fields.ResourceClassField(read_only=True),
'usage': fields.NonNegativeIntegerField(),
}
@staticmethod
def _from_db_object(context, target, source):
for field in target.fields:
if field not in ('resource_class'):
setattr(target, field, source[field])
if 'resource_class' not in target:
target.resource_class = (
target.fields['resource_class'].from_index(
source['resource_class_id']))
target._context = context
target.obj_reset_changes()
return target
def setUp(self):
super(TestNonNegativeInteger, self).setUp()
self.field = fields.NonNegativeIntegerField()
self.coerce_bad_values.extend(['-2', '4.2'])
