manila/manila/share/drivers/emc/plugins/vnx/utils.py

62 lines
1.9 KiB
Python

# Copyright (c) 2014 EMC Corporation.
# 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 types
from oslo_config import cfg
from oslo_utils import timeutils
from manila.openstack.common import log
CONF = cfg.CONF
LOG = log.getLogger(__name__)
def decorate_all_methods(decorator, debug_only=False):
if debug_only and not CONF.debug:
return lambda cls: cls
def _decorate_all_methods(cls):
for attr_name, attr_val in cls.__dict__.items():
if (isinstance(attr_val, types.FunctionType) and
not attr_name.startswith("_")):
setattr(cls, attr_name, decorator(attr_val))
return cls
return _decorate_all_methods
def log_enter_exit(func):
if not CONF.debug:
return func
def inner(self, *args, **kwargs):
LOG.debug("Entering %(cls)s.%(method)s",
{'cls': self.__class__.__name__,
'method': func.__name__})
start = timeutils.utcnow()
ret = func(self, *args, **kwargs)
end = timeutils.utcnow()
LOG.debug("Exiting %(cls)s.%(method)s. "
"Spent %(duration)s sec. "
"Return %(return)s",
{'cls': self.__class__.__name__,
'duration': timeutils.delta_seconds(start, end),
'method': func.__name__,
'return': ret})
return ret
return inner