def set_application_config_file(configuration_file):
"""
This method sets the application wide configuration file that will be used
:param configuration_file: config file name if the file is in the default configuration path or path to the
configuration file if it is not.
:return: no return value
:exception: ConfigException is raised if there already is a configuration file set
"""
global __configuration_file_name
if __configuration_file_name is not None:
raise AppConfigException(
"Configuration file can't be changed once an initial configuartion file has been provided")
__configuration_file_name = configuration_file
def read_config_from_file(configuration_file):
"""
Given a file name or absolute path, read its configuration information in json format and return its object
representation
:param configuration_file: file name or absolute path for the file that contains the configuration information
:return: an object representation of the json formatted configuration information read from the file
"""
if (configuration_file is None):
# If there is no configuration file, we return an empty configuration object
return {}
config_file_path = configuration_file
if not os.path.isabs(config_file_path):
config_file_path = os.path.join(_folder_config, configuration_file)
try:
return general.read_json(config_file_path)
except Exception as e:
msg = "Config file {} could not be read, because {}".format(config_file_path, str(e))
raise AppConfigException(msg)