def map_field(cls, exporter, entity_name, field_name, model_object):
try:
try:
if hasattr(cls, "get_" + field_name):
mthd = getattr(cls, "get_" + field_name)
value = mthd(exporter,
DynamicProxy.return_value(model_object))
elif hasattr(cls, "map") and field_name in cls.map:
value = cls.map[field_name](
exporter, DynamicProxy.return_value(model_object))
else:
value = getattr(model_object, field_name)
# copy dict and sequence proxy before passing it to handler code
if isinstance(value, (DynamicProxy, SequenceProxy)):
value = serialize_proxy(value)
return value
except UnknownException as e:
return e.unknown
except AttributeError as e:
raise AttributeError(
"Attribute %s does not exist on entity of type %s" %
(field_name, entity_name))
def _load_resources(self, types):
"""
Load all registered resources
"""
entities = resource.get_entity_resources()
resource_mapping = {}
ignored_set = set()
for entity in entities:
if entity not in types:
continue
instances = types[entity].get_all_instances()
if len(instances) > 0:
for instance in instances:
try:
res = Resource.create_from_model(
self, entity, DynamicProxy.return_value(instance))
resource_mapping[instance] = res
self.add_resource(res)
except UnknownException:
ignored_set.add(instance)
# We get this exception when the attribute that is used to create the object id contains an unknown.
# We can safely ignore this resource == prune it
LOGGER.debug(
"Skipped resource of type %s because its id contains an unknown (location: %s)",
entity, instance.location)
except IgnoreResourceException:
ignored_set.add(instance)
LOGGER.info(
"Ignoring resource of type %s because it requested to ignore it. (location: %s)",
entity, instance.location)
Resource.convert_requires(resource_mapping, ignored_set)
def new_arg(arg: object) -> object:
if isinstance(arg, Context):
return arg
elif isinstance(arg, Unknown) and self.is_accept_unknowns():
return arg
else:
return DynamicProxy.return_value(arg)
def proxy_object(snippetcompiler, snippet, var):
snippetcompiler.setup_for_snippet(snippet)
(_, root) = compiler.do_compile()
scope = root.get_child("__config__").scope
value = scope.lookup(var).get_value()
return DynamicProxy.return_value(value)
def __getitem__(self, key):
instance = self._get_instance()
if not isinstance(key, str):
raise RuntimeException(
self,
"Expected string key, but got %s, %s is a dict" %
(key, self._get_instance()),
)
return DynamicProxy.return_value(instance[key])
def _get_instance_proxies_of_types(self, types):
"""
Returns a dict of instances for the given types
"""
proxies = {}
for t in types:
if self.types is not None and t in self.types:
proxies[t] = [DynamicProxy.return_value(i) for i in self.types[t].get_all_instances()]
else:
proxies[t] = []
return proxies
def _get_instance_proxies_of_types(
self, types: List[str]) -> Dict[str, Sequence[ProxiedType]]:
"""Returns a dict of instances for the given types"""
proxies: Dict[str, Sequence[ProxiedType]] = {}
for t in types:
if self.types is not None and t in self.types:
proxies[t] = [
DynamicProxy.return_value(i)
for i in self.types[t].get_all_instances()
]
else:
proxies[t] = []
return proxies
def __call__(self, *args):
"""
The function call itself
"""
self.check_requirements()
new_args = []
for arg in args:
if isinstance(arg, Context):
new_args.append(arg)
else:
new_args.append(DynamicProxy.return_value(arg))
value = self.call(*new_args)
value = DynamicProxy.unwrap(value)
if self.returntype is not None and not isinstance(value, Unknown):
valid = False
exception = None
try:
valid = (value is None
or self._is_instance(value, self.returntype))
except RuntimeException as e:
raise e
except Exception as exp:
exception = exp
if not valid:
msg = ""
if exception is not None:
msg = "\n\tException details: " + str(exception)
raise Exception(
"Plugin %s should return value of type %s ('%s' was returned) %s"
% (self.__class__.__function_name__, self.returntype,
value, msg))
return value
def get_instances(self, fortype: str = "std::Entity"):
# extract all objects of a specific type from the compiler
allof = self.types[fortype].get_all_instances()
# wrap in DynamicProxy to hide internal compiler structure
# and get inmanta objects as if they were python objects
return [DynamicProxy.return_value(port) for port in allof]
def get_variable(self, name, scope):
"""
Get the given variable
"""
return DynamicProxy.return_value(
self._scope.get_variable(name, scope).value)