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# (c) Copyright 2014-2016 Hewlett-Packard Development Company, L.P.
#
# 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.
from oslo_serialization import jsonutils as json
class ApiClientException(Exception):
@staticmethod
def get_message_from_api_response(r):
"""
returns a message based on information from a api-formatted response
if available, otherwise None
api-formatted response should be:
{
title: "error title string",
description: "error description string"
}
:param r: response object
:return: string with error message or None if it fails
"""
try:
body = json.loads(r.text)
message = "[*] Error {0}: {1}".format(
r.status_code,
body['description'])
except Exception:
message = None
return message
@staticmethod
def get_message_from_response(r):
"""
composes the error message using information eventually present
in the response (http error code and the http response body)
:param r: response object
:return: string with error message or None if it fails
"""
try:
message = "[*] Error {0}: {1}".format(
r.status_code,
r.text)
except Exception:
message = None
return message
def __init__(self, r):
message = self.get_message_from_api_response(r) or \
self.get_message_from_response(r) or \
str(r)
try:
self.status_code = r.status_code
except Exception:
self.status_code = None
super(ApiClientException, self).__init__(message)
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