104 lines
2.9 KiB
Python
104 lines
2.9 KiB
Python
# Copyright 2017 Catalyst IT Limited
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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class QinlingException(Exception):
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"""Qinling specific exception.
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Reserved for situations that are not critical for program continuation.
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It is possible to recover from this type of problems automatically and
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continue program execution. Such problems may be related with invalid user
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input (such as invalid syntax) or temporary environmental problems.
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In case if an instance of a certain exception type bubbles up to API layer
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then this type of exception it must be associated with an http code so it's
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clear how to represent it for a client.
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To correctly use this class, inherit from it and define a 'message' and
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'http_code' properties.
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"""
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message = "An unknown exception occurred"
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http_code = 500
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def __init__(self, message=None):
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if message is not None:
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self.message = message
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super(QinlingException, self).__init__(
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'%d: %s' % (self.http_code, self.message))
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@property
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def code(self):
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"""This is here for webob to read.
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https://github.com/Pylons/webob/blob/master/webob/exc.py
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"""
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return self.http_code
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def __str__(self):
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return self.message
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class InputException(QinlingException):
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http_code = 400
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class UnauthorizedException(QinlingException):
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http_code = 401
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message = "Unauthorized"
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class NotAllowedException(QinlingException):
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http_code = 403
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message = "Operation not allowed"
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class ConflictException(QinlingException):
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http_code = 409
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message = ("The request could not be completed due to a conflict with the "
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"current state of the target resource")
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class RuntimeNotAvailableException(QinlingException):
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http_code = 409
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message = "Runtime not available"
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class DBError(QinlingException):
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http_code = 400
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class DBEntityNotFoundError(DBError):
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http_code = 404
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message = "Object not found"
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class ApplicationContextNotFoundException(QinlingException):
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http_code = 400
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message = "Application context not found"
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class StorageNotFoundException(QinlingException):
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http_code = 404
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message = "Storage file not found"
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class StorageProviderException(QinlingException):
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http_code = 500
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class OrchestratorException(QinlingException):
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http_code = 500
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message = "Orchestrator error."
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