Alexandru Coman 6251ca5344
Add base data model in order to improve data representation
The proposed data model improves the way how the information
is structured and allows related entities to to inherit data.
2017-01-30 14:03:35 +02:00

73 lines
2.2 KiB
Python

# Copyright 2017 Cloudbase Solutions Srl
#
# 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.
"""HNV client exception handling."""
class HNVException(Exception):
"""Base hnv_client exception.
To correctly use this class, inherit from it and define
a `template` property.
That `template` will be formated using the keyword arguments
provided to the constructor.
Example:
::
class NotFound(HNVException):
template = "The %(object)r was not found in %(container)s."
raise NotFound(object="subnet_id", container="network_id")
"""
template = "An unknown exception occurred."
def __init__(self, message=None, **kwargs):
message = message or self.template
try:
message = message % kwargs
except (TypeError, KeyError):
# Something went wrong during message formatting.
# Probably kwargs doesn't match a variable in the message.
message = ("Message: %(template)s. Extra or "
"missing info: %(kwargs)s" %
{"template": message, "kwargs": kwargs})
super(HNVException, self).__init__(message)
class DataProcessingError(HNVException):
"""Base exception class for data processing related errors."""
template = "The provided information is incomplete or invalid."
class NotFound(HNVException):
"""The required object is not available in container."""
template = "The %(object)r was not found in %(container)s."
class NotSupported(HNVException):
"""The functionality required is not available in the current context."""
template = "%(feature)s is not available in %(context)s."