09ad1ed7a3
There are some exceptions defined in exc module, which is introduced two years ago, and it is marked as DEPRECATED in the same time. It should be removed for now, since there are no longer used. Change-Id: I039575f37b0e6d1c30e447b74d61b8cd0b6bbd29
124 lines
3.0 KiB
Python
124 lines
3.0 KiB
Python
# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# 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, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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import json
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import sys
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class BaseException(Exception):
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"""An error occurred."""
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def __init__(self, message=None):
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self.message = message
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def __str__(self):
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return self.message or self.__class__.__doc__
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class CommandError(BaseException):
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"""Invalid usage of CLI."""
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class InvalidEndpoint(BaseException):
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"""The provided endpoint is invalid."""
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class CommunicationError(BaseException):
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"""Unable to communicate with server."""
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class HTTPException(BaseException):
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"""Base exception for all HTTP-derived exceptions."""
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code = 'N/A'
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def __init__(self, details=None):
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self.details = details
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def __str__(self):
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try:
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data = json.loads(self.details)
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message = data.get("error_message", {}).get("faultstring")
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if message:
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return "%s (HTTP %s) ERROR %s" % (
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self.__class__.__name__, self.code, message)
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except (ValueError, TypeError, AttributeError):
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pass
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return "%s (HTTP %s)" % (self.__class__.__name__, self.code)
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class HTTPMultipleChoices(HTTPException):
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code = 300
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def __str__(self):
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self.details = ("Requested version of OpenStack Images API is not"
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"available.")
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return "%s (HTTP %s) %s" % (self.__class__.__name__, self.code,
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self.details)
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class HTTPBadRequest(HTTPException):
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code = 400
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class HTTPUnauthorized(HTTPException):
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code = 401
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class HTTPForbidden(HTTPException):
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code = 403
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class HTTPNotFound(HTTPException):
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code = 404
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class HTTPMethodNotAllowed(HTTPException):
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code = 405
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class HTTPConflict(HTTPException):
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code = 409
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class HTTPOverLimit(HTTPException):
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code = 413
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class HTTPInternalServerError(HTTPException):
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code = 500
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class HTTPNotImplemented(HTTPException):
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code = 501
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class HTTPBadGateway(HTTPException):
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code = 502
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class HTTPServiceUnavailable(HTTPException):
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code = 503
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#NOTE(bcwaldon): Build a mapping of HTTP codes to corresponding exception
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# classes
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_code_map = {}
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for obj_name in dir(sys.modules[__name__]):
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if obj_name.startswith('HTTP'):
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obj = getattr(sys.modules[__name__], obj_name)
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_code_map[obj.code] = obj
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def from_response(response, details=None):
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"""Return an instance of an HTTPException based on httplib response."""
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cls = _code_map.get(response.status, HTTPException)
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return cls(details)
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