def add_class_object(self, class_object):
class_name = get_class_name(class_object)
attr_name = self._get_new_name(class_name)
if not self._already_existing_class_name(attr_name):
resolved_instance = self._get_resolved_instance_of_class(
class_object)
self._resolve_names_and_add(resolved_instance, class_name)
def _get_class_adding_method(self, class_object):
prefix = self._get_class_prefix(class_object)
class_dict = dict(ib = self._add_ib_class, csv = self._add_csv_class, arctic = self._add_arctic_class,
mongo = self._add_mongo_class)
method_to_add_with = class_dict.get(prefix, None)
if method_to_add_with is None:
error_msg = "Don't know how to handle object named %s" % get_class_name(class_object)
self._raise_and_log_error(error_msg)
return method_to_add_with
def _add_ib_class(self, class_object):
log = self._get_specific_logger(class_object)
try:
resolved_instance = class_object(self.ib_conn, log = log)
except Exception as e:
class_name = get_class_name(class_object)
msg = (
"Error %s couldn't evaluate %s(self.ib_conn, log = self.log.setup(component = %s)) This might be because (a) IB gateway not running, or (b) import is missing\
or (c) arguments don't follow pattern" % (str(e), class_name, class_name))
self._raise_and_log_error(msg)
return resolved_instance
def _add_arctic_class(self, class_object):
log = self._get_specific_logger(class_object)
try:
resolved_instance = class_object(mongo_db=self.mongo_db, log = log)
except Exception as e:
class_name = get_class_name(class_object)
msg = (
"Error %s couldn't evaluate %s(mongo_db=self.mongo_db, log = self.log.setup(component = %s)) \
This might be because import is missing\
or arguments don't follow pattern" % (str(e), class_name, class_name))
self._raise_and_log_error(msg)
return resolved_instance
def _get_csv_paths_for_class(self, class_object) -> str:
class_name = get_class_name(class_object)
csv_data_paths = self.csv_data_paths
if csv_data_paths is arg_not_supplied:
self.log.warn("No datapaths provided for .csv, will use defaults (may break in production, should be fine in sim)")
return arg_not_supplied
datapath = csv_data_paths.get(class_name, "")
if datapath == "":
self.log.warn(
"No key for %s in csv_data_paths, will use defaults (may break in production, should be fine in sim)" %
class_name)
return arg_not_supplied
return datapath
def add_class_object(self, class_object):
resolved_instance = self._get_resolved_instance_of_class(class_object)
class_name = get_class_name(class_object)
self._resolve_names_and_add(resolved_instance, class_name)
def _get_specific_logger(self, class_object):
class_name = get_class_name(class_object)
log = self.log.setup(component=class_name)
return log
def _get_class_prefix(self, class_object) -> str:
class_name = get_class_name(class_object)
split_up_name = camel_case_split(class_name)
prefix = split_up_name[0]
return prefix
