28 lines
858 B
Python
28 lines
858 B
Python
"""Insights into Lacre's inner workings."""
|
|
|
|
import time
|
|
import logging
|
|
|
|
class ExecutionTimeLogger:
|
|
"""Context-manager that measures how much time some operation took and logs it."""
|
|
|
|
def __init__(self, message: str, logger: logging.Logger):
|
|
self._message = message
|
|
self._log = logger
|
|
self._start = None
|
|
|
|
def __enter__(self):
|
|
self._start = time.process_time()
|
|
|
|
def __exit__(self, exc_type=None, exc_value=None, traceback=None):
|
|
end = time.process_time()
|
|
ellapsed = (end - self._start) * 1000
|
|
|
|
if exc_type:
|
|
self._log.error('%s took %d ms, raised exception %s', self._message, ellapsed, exc_type)
|
|
else:
|
|
self._log.info('%s took %d ms', self._message, ellapsed)
|
|
|
|
def time_logger(msg: str, logger: logging.Logger):
|
|
return ExecutionTimeLogger(msg, logger)
|