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# Licensed to the Apache Software Foundation (ASF) under one or more
# contributor license agreements. See the NOTICE file distributed with
# this work for additional information regarding copyright ownership.
# The ASF licenses this file to You 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.
"""
Centralized logging configuration and formatting.
"""
import os
import copy
import logging
from logutils import dictconfig
HIGH_VERBOSE = 3
MEDIUM_VERBOSE = 2
LOW_VERBOSE = 1
NO_VERBOSE = 0
LOGGER_CONFIG_TEMPLATE = {
"version": 1,
"formatters": {
"file": {
"format": "%(asctime)s [%(levelname)s] %(message)s"
},
"console": {
"format": "%(message)s"
}
},
"handlers": {
"file": {
"class": "logging.handlers.RotatingFileHandler",
"formatter": "file",
"maxBytes": "5000000",
"backupCount": "20"
},
"console": {
"class": "logging.StreamHandler",
"stream": "ext://sys.stdout",
"formatter": "console"
}
},
"disable_existing_loggers": False
}
class Logging(object):
def __init__(self, config):
self._log_file = None
self._verbosity_level = NO_VERBOSE
self._all_loggers_names = []
self._configure_loggers(config)
self._lgr = logging.getLogger('aria.cli.main')
@property
def logger(self):
return self._lgr
@property
def log_file(self):
return self._log_file
@property
def verbosity_level(self):
return self._verbosity_level
@verbosity_level.setter
def verbosity_level(self, level):
self._verbosity_level = level
if self.is_high_verbose_level():
for logger_name in self._all_loggers_names:
logging.getLogger(logger_name).setLevel(logging.DEBUG)
def is_high_verbose_level(self):
return self.verbosity_level == HIGH_VERBOSE
def _configure_loggers(self, config):
loggers_config = config.logging.loggers
logfile = config.logging.filename
logger_dict = copy.deepcopy(LOGGER_CONFIG_TEMPLATE)
if logfile:
# set filename on file handler
logger_dict['handlers']['file']['filename'] = logfile
logfile_dir = os.path.dirname(logfile)
if not os.path.exists(logfile_dir):
os.makedirs(logfile_dir)
self._log_file = logfile
else:
del logger_dict['handlers']['file']
# add handlers to all loggers
loggers = {}
for logger_name in loggers_config:
loggers[logger_name] = dict(handlers=list(logger_dict['handlers'].keys()))
self._all_loggers_names.append(logger_name)
logger_dict['loggers'] = loggers
# set level for all loggers
for logger_name, logging_level in loggers_config.iteritems():
log = logging.getLogger(logger_name)
level = logging._levelNames[logging_level.upper()]
log.setLevel(level)
dictconfig.dictConfig(logger_dict)
class ModelLogIterator(object):
def __init__(self, model_storage, execution_id, filters=None, sort=None, offset=0):
self._last_visited_id = offset
self._model_storage = model_storage
self._execution_id = execution_id
self._additional_filters = filters or {}
self._sort = sort or {}
def __iter__(self):
filters = dict(execution_fk=self._execution_id, id=dict(gt=self._last_visited_id))
filters.update(self._additional_filters)
for log in self._model_storage.log.iter(filters=filters, sort=self._sort):
self._last_visited_id = log.id
yield log
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