# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations
# under the License.
import abc
import six
from oslo_cache import core
from oslo_config import cfg
from heat.common import cache
MEMOIZE_EXTENSIONS = core.get_memoization_decorator(
conf=cfg.CONF,
region=cache.get_cache_region(),
group="service_extension_cache")
MEMOIZE_FINDER = core.get_memoization_decorator(
conf=cfg.CONF,
region=cache.get_cache_region(),
group="resource_finder_cache")
@six.add_metaclass(abc.ABCMeta)
class ExtensionMixin(object):
def __init__(self, *args, **kwargs):
super(ExtensionMixin, self).__init__(*args, **kwargs)
self._extensions = None
@abc.abstractmethod
from oslo_cache import core
from oslo_config import cfg
from oslo_log import log
from oslo_utils import reflection
from oslo_utils import strutils
import six
from heat.common import cache
from heat.common import exception
from heat.common.i18n import _
from heat.engine import resources
# decorator that allows to cache the value
# of the function based on input arguments
MEMOIZE = core.get_memoization_decorator(conf=cfg.CONF,
region=cache.get_cache_region(),
group="constraint_validation_cache")
LOG = log.getLogger(__name__)
class Schema(collections.Mapping):
"""Schema base class for validating properties or parameters.
Schema objects are serializable to dictionaries following a superset of
the HOT input Parameter schema using dict().
Serialises to JSON in the form::
{
'type': 'list',
