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import operator
from typing import Any, Callable, List, Tuple, Union
ACTION_MSG_GET = 'Get resource(key={:s})'
ACTION_MSG_SET = 'Set resource(key={:s}, value={:s})'
ACTION_MSG_DELETE = 'Delete resource(key={:s})'
ACTION_MSG_SUBSCRIBE = 'Subscribe subscription(key={:s}, duration={:s}, interval={:s})'
ACTION_MSG_UNSUBSCRIBE = 'Unsubscribe subscription(key={:s}, duration={:s}, interval={:s})'
def _get(resource_key : str): return ACTION_MSG_GET.format(str(resource_key))
def _set(resource : Tuple[str, Any]): return ACTION_MSG_SET.format(map(str, resource))
def _delete(resource_key : str): return ACTION_MSG_SET.format(str(resource_key))
def _subscribe(subscription : Tuple[str, float, float]): return ACTION_MSG_SUBSCRIBE.format(map(str, subscription))
def _unsubscribe(subscription : Tuple[str, float, float]): return ACTION_MSG_UNSUBSCRIBE.format(map(str, subscription))
def _check_errors(
error_func : Callable, parameters_list : List[Any], results_list : List[Union[bool, Exception]]
) -> List[str]:
errors = []
for parameters, results in zip(parameters_list, results_list):
if not isinstance(results, Exception): continue
errors.append('Unable to {:s}; error({:s})'.format(error_func(parameters), str(results)))
return errors
def check_get_errors(
resource_keys : List[str], results : List[Tuple[str, Union[Any, None, Exception]]]
) -> List[str]:
return _check_errors(_set, resource_keys, map(operator.itemgetter(1), results))
def check_set_errors(
resources : List[Tuple[str, Any]], results : List[Union[bool, Exception]]
) -> List[str]:
return _check_errors(_set, resources, results)
def check_delete_errors(
resource_keys : List[str], results : List[Union[bool, Exception]]
) -> List[str]:
return _check_errors(_delete, resource_keys, results)
def check_subscribe_errors(
subscriptions : List[Tuple[str, float, float]], results : List[Union[bool, Exception]]
) -> List[str]:
return _check_errors(_subscribe, subscriptions, results)
def check_unsubscribe_errors(
subscriptions : List[Tuple[str, float, float]], results : List[Union[bool, Exception]]
) -> List[str]:
return _check_errors(_unsubscribe, subscriptions, results)