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# Copyright (c) 2017 Cisco and/or its affiliates.
# 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.
"""Implementation of exceptions used in the Presentation and analytics layer.
"""
import sys
import logging
class PresentationError(Exception):
"""Exception(s) raised by the presentation module.
When raising this exception, put this information to the message in this
order:
- short description of the encountered problem (parameter msg),
- relevant messages if there are any collected, e.g., from caught
exception (optional parameter details),
- relevant data if there are any collected (optional parameter details).
"""
log_exception = {"DEBUG": logging.debug,
"INFO": logging.info,
"WARNING": logging.warning,
"ERROR": logging.error,
"CRITICAL": logging.critical}
def __init__(self, msg, details='', level="CRITICAL"):
"""Sets the exception message and the level.
:param msg: Short description of the encountered problem.
:param details: Relevant messages if there are any collected, e.g.,
from caught exception (optional parameter details), or relevant data if
there are any collected (optional parameter details).
:param level: Level of the error, possible choices are: "DEBUG", "INFO",
"WARNING", "ERROR" and "CRITICAL".
:type msg: str
:type details: str
:type level: str
"""
super(PresentationError, self).__init__()
self._msg = msg
self._details = details
self._level = level
try:
self.log_exception[self._level](self._msg)
if self._details:
self.log_exception[self._level](self._details)
except KeyError:
print("Wrong log level.")
sys.exit(1)
def __repr__(self):
return repr(self._msg)
def __str__(self):
return str(self._msg)
@property
def level(self):
"""Getter - logging level.
:returns: Logging level.
:rtype: str
"""
return self._level
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