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import logging
try:
from typing import List, Dict, Any, Optional
except ImportError:
pass
logger = logging.getLogger(__name__)
# Tricking mypy to think `_omit`'s type is NoneType
# To make us not add things like `Union[Optional[str], OmitType]`
NoneType = type(None)
_omit = None # type: NoneType
_omit = object() # type: ignore
# Don't add any additionalProperties to objects. Useful for completeness testing
STRICT = False
def _property_from_json(data, breadcrumb, name, py_name, typ, required, nullable):
if not required and name not in data:
return _omit
obj = data[name]
if nullable and obj is None:
return obj
if issubclass(typ, CrdObject) or issubclass(typ, CrdObjectList):
return typ.from_json(obj, breadcrumb + '.' + name)
return obj
class CrdObject(object):
_properties = [] # type: List
def __init__(self, **kwargs):
for prop in self._properties:
setattr(self, prop[1], kwargs.pop(prop[1]))
if kwargs:
raise TypeError(
'{} got unexpected arguments {}'.format(self.__class__.__name__, kwargs.keys()))
self._additionalProperties = {} # type: Dict[str, Any]
def _property_impl(self, name):
obj = getattr(self, '_' + name)
if obj is _omit:
raise AttributeError(name + ' not found')
return obj
def _property_to_json(self, name, py_name, typ, required, nullable):
obj = getattr(self, '_' + py_name)
if issubclass(typ, CrdObject) or issubclass(typ, CrdObjectList):
if nullable and obj is None:
return obj
if not required and obj is _omit:
return obj
return obj.to_json()
else:
return obj
def to_json(self):
# type: () -> Dict[str, Any]
res = {p[0]: self._property_to_json(*p) for p in self._properties}
res.update(self._additionalProperties)
return {k: v for k, v in res.items() if v is not _omit}
@classmethod
def from_json(cls, data, breadcrumb=''):
try:
sanitized = {
p[1]: _property_from_json(data, breadcrumb, *p) for p in cls._properties
}
extra = {k:v for k,v in data.items() if k not in sanitized}
ret = cls(**sanitized)
ret._additionalProperties = {} if STRICT else extra
return ret
except (TypeError, AttributeError, KeyError):
logger.exception(breadcrumb)
raise
class CrdClass(CrdObject):
@classmethod
def from_json(cls, data, breadcrumb=''):
kind = data['kind']
if kind != cls.__name__:
raise ValueError("kind mismatch: {} != {}".format(kind, cls.__name__))
return super(CrdClass, cls).from_json(data, breadcrumb)
def to_json(self):
ret = super(CrdClass, self).to_json()
ret['kind'] = self.__class__.__name__
return ret
class CrdObjectList(list):
# Py3: Replace `Any` with `TypeVar('T_CrdObject', bound='CrdObject')`
_items_type = None # type: Optional[Any]
def to_json(self):
# type: () -> List
if self._items_type is None:
return self
return [e.to_json() for e in self]
@classmethod
def from_json(cls, data, breadcrumb=''):
if cls._items_type is None:
return cls(data)
return cls(cls._items_type.from_json(e, breadcrumb + '[]') for e in data)
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