o2o-negosium-original/negodata/backend/common/logger.py

44 lines
1.0 KiB
Python

import sys
import traceback
from datetime import datetime, timezone
class _Logger:
"""원본 DerbyServer LOG 인터페이스를 간소화한 버전.
LOG.i / LOG.d / LOG.w / LOG.e_no_callstack / LOG.SetPrefix 를 제공한다.
"""
def __init__(self):
self._prefix = ""
def SetPrefix(self, prefix: str):
self._prefix = prefix
def _now(self) -> str:
return datetime.now(timezone.utc).strftime("%Y-%m-%d %H:%M:%S")
def _write(self, level: str, msg):
head = f"{self._now()} [{level}]"
if self._prefix:
head += f"[{self._prefix}]"
print(f"{head} {msg}", file=sys.stderr if level in ("WARN", "ERROR") else sys.stdout)
def d(self, msg):
self._write("DEBUG", msg)
def i(self, msg):
self._write("INFO", msg)
def w(self, msg):
self._write("WARN", msg)
def e(self, msg):
self._write("ERROR", msg)
traceback.print_stack()
def e_no_callstack(self, msg):
self._write("ERROR", msg)
LOG = _Logger()