def create_instance(self, family_name: str,
instance_name_or_spec: Union[dict, str]):
dtu.check_isinstance(instance_name_or_spec, (dict, str))
family = self.get_family(family_name)
if not family.valid:
msg = f"Cannot instantiate {instance_name_or_spec!r} because its family {family_name!r} is " \
f"invalid."
msg += "\n\n" + dtu.indent(family.error_if_invalid, " > ")
raise dtu.DTConfigException(msg)
if isinstance(instance_name_or_spec, str):
instance_name = instance_name_or_spec
dtu.check_is_in("instance", instance_name, family.instances)
instance = family.instances[instance_name]
if not instance.valid:
msg = f"Cannot instantiate {instance_name!r} because it is invalid:\n" \
f"{dtu.indent(instance.error_if_invalid, '> ')}"
raise dtu.DTConfigException(msg)
res = dtu.instantiate(instance.constructor, instance.parameters)
elif isinstance(instance_name_or_spec, dict):
_name, spec = _parse_inline_spec(instance_name_or_spec)
res = dtu.instantiate(spec.constructor, spec.parameters)
else:
assert False
interface = dtu.import_name(family.interface)
if not isinstance(res, interface):
msg = f"I expected that {instance_name_or_spec!r} would be a {interface.__name__} but it is a " \
f"{type(res).__name__}."
raise dtu.DTConfigException(msg)
return res
def eval_name(x, name_tuple: Sequence[str]):
if not name_tuple:
return x
else:
first = name_tuple[0]
rest = name_tuple[1:]
dtu.check_is_in("value", first, x, EvaluationError)
xx = x[first]
return eval_name(xx, rest)
def eval(self, rdb):
db_entry = rdb.query_results_one(branch=self.branch,
date=self.date,
commit=self.commit)
dtu.dt_check_isinstance("db_entry", db_entry, ResultDBEntry)
# print('Results= %s' % db_entry.__repr__())
results = db_entry.results
dtu.check_is_in("analyzer", self.analyzer, results, EvaluationError)
logs = results[self.analyzer]
dtu.check_is_in("log", self.log, logs, EvaluationError)
forlog = logs[self.log]
val = eval_name(forlog, self.statistic)
return val
def get_family(self, x: str):
dtu.check_is_in("family", x, self.family_name2config)
return self.family_name2config[x]