rally/rally/common/log.py

110 lines
3.0 KiB
Python

# Copyright 2014: Mirantis Inc.
# All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License"); you may
# not use this file except in compliance with the License. You may obtain
# a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations
# under the License.
import logging
from oslo_config import cfg
from oslo_log import handlers
from oslo_log import log as oslogging
DEBUG_OPTS = [cfg.BoolOpt(
"rally-debug",
default=False,
help="Print debugging output only for Rally. "
"Off-site components stay quiet.")]
CONF = cfg.CONF
CONF.register_cli_opts(DEBUG_OPTS)
oslogging.register_options(CONF)
logging.RDEBUG = logging.DEBUG + 1
logging.addLevelName(logging.RDEBUG, "RALLYDEBUG")
CRITICAL = logging.CRITICAL
DEBUG = logging.DEBUG
ERROR = logging.ERROR
FATAL = logging.FATAL
INFO = logging.INFO
NOTSET = logging.NOTSET
RDEBUG = logging.RDEBUG
WARN = logging.WARN
WARNING = logging.WARNING
def setup(product_name, version="unknown"):
dbg_color = handlers.ColorHandler.LEVEL_COLORS[logging.DEBUG]
handlers.ColorHandler.LEVEL_COLORS[logging.RDEBUG] = dbg_color
oslogging.setup(CONF, product_name, version)
if CONF.rally_debug:
oslogging.getLogger(
project=product_name).logger.setLevel(logging.RDEBUG)
def getLogger(name="unknown", version="unknown"):
if name not in oslogging._loggers:
oslogging._loggers[name] = RallyContextAdapter(logging.getLogger(name),
{"project": "rally",
"version": version})
return oslogging._loggers[name]
class RallyContextAdapter(oslogging.KeywordArgumentAdapter):
def debug(self, msg, *args, **kwargs):
self.log(logging.RDEBUG, msg, *args, **kwargs)
class ExceptionLogger(object):
"""Context that intercepts and logs exceptions.
Usage::
LOG = logging.getLogger(__name__)
...
def foobar():
with ExceptionLogger(LOG, "foobar warning") as e:
return house_of_raising_exception()
if e.exception:
raise e.exception # remove if not required
"""
def __init__(self, logger, warn=None):
self.logger = logger
self.warn = warn
self.exception = None
def __enter__(self):
return self
def __exit__(self, type_, value, traceback):
if value:
self.exception = value
if self.warn:
self.logger.warning(self.warn)
self.logger.debug(value)
if is_debug():
self.logger.exception(value)
return True
def is_debug():
return CONF.debug or CONF.rally_debug