StarlingX System Configuration Management
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# 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
# 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.
import six
import sys
class BaseException(Exception):
"""An error occurred."""
def __init__(self, message=None):
super(BaseException, self).__init__()
self.message = message
def __str__(self):
return str(self.message) or self.__class__.__doc__
class CommandError(BaseException):
"""Invalid usage of CLI."""
class InvalidEndpoint(BaseException):
"""The provided endpoint is invalid."""
class CommunicationError(BaseException):
"""Unable to communicate with server."""
class ClientException(Exception):
class HTTPException(ClientException):
"""Base exception for all HTTP-derived exceptions."""
code = 'N/A'
def __init__(self, details=None):
super(HTTPException, self).__init__()
self.details = details
def __str__(self):
return str(self.details) or "%s (HTTP %s)" % (self.__class__.__name__,
class HTTPMultipleChoices(HTTPException):
code = 300
def __str__(self):
self.details = ("Requested version of OpenStack Images API is not"
return "%s (HTTP %s) %s" % (self.__class__.__name__, self.code,
class BadRequest(HTTPException):
code = 400
class HTTPBadRequest(BadRequest):
class Unauthorized(HTTPException):
code = 401
class HTTPUnauthorized(Unauthorized):
class Forbidden(HTTPException):
code = 403
class HTTPForbidden(Forbidden):
class NotFound(HTTPException):
code = 404
class HTTPNotFound(NotFound):
class HTTPMethodNotAllowed(HTTPException):
code = 405
class Conflict(HTTPException):
code = 409
class HTTPConflict(Conflict):
class OverLimit(HTTPException):
code = 413
class HTTPOverLimit(OverLimit):
class HTTPInternalServerError(HTTPException):
code = 500
class HTTPNotImplemented(HTTPException):
code = 501
class HTTPBadGateway(HTTPException):
code = 502
class ServiceUnavailable(HTTPException):
code = 503
class HTTPServiceUnavailable(ServiceUnavailable):
# NOTE(bcwaldon): Build a mapping of HTTP codes to corresponding exception
# classes
_code_map = {}
for obj_name in dir(sys.modules[__name__]):
if obj_name.startswith('HTTP'):
obj = getattr(sys.modules[__name__], obj_name)
_code_map[obj.code] = obj
def from_response(response, message=None, traceback=None,
method=None, url=None):
"""Return an instance of an HTTPException based on httplib response."""
cls = None
if hasattr(response, 'status_code'):
cls = _code_map.get(response.status_code, HTTPException)
elif hasattr(response, 'status_int'):
cls = _code_map.get(response.status_int, HTTPException)
elif hasattr(response, 'status'):
cls = _code_map.get(response.status, HTTPException)
# No status code: return a generic exception
return Exception("Unexpected error in response: %s" % message)
return cls(message)
class NoTokenLookupException(Exception):
pass # pylint: disable=unnecessary-pass
class EndpointNotFound(Exception):
pass # pylint: disable=unnecessary-pass
class AmbiguousAuthSystem(ClientException):
"""Could not obtain token and endpoint using provided credentials."""
pass # pylint: disable=unnecessary-pass
class CgtsclientException(Exception):
"""Base Cgts-Client Exception
To correctly use this class, inherit from it and define
a 'message' property. That message will get printf'd
with the keyword arguments provided to the constructor.
message = "An unknown exception occurred."
code = 500
headers = {}
safe = False
def __init__(self, message=None, **kwargs):
self.kwargs = kwargs
if 'code' not in self.kwargs:
self.kwargs['code'] = self.code
except AttributeError:
if not message:
message = self.message % kwargs # pylint: disable=exception-message-attribute
except Exception:
# kwargs doesn't match a variable in the message
# at least get the core message out if something happened
message = self.message # pylint: disable=exception-message-attribute
super(CgtsclientException, self).__init__(message)
def format_message(self):
if self.__class__.__name__.endswith('_Remote'):
return self.args[0] # pylint: disable=unsubscriptable-object
return six.text_type(self)
class AmbiguousEndpoints(CgtsclientException):
message = "Endpoints are ambiguous. reason=%(reason)s"
class EndpointTypeNotFound(CgtsclientException):
message = "The type of the endpoint was not found. reason=%(reason)s"
class SslCertificateValidationError(CgtsclientException):
message = "Validation of the Ssl certificate failed. reason=%(reason)s"
class EndpointException(CgtsclientException):
message = "Generic endpoint exception. reason=%(reason)s"
# Alias for backwards compatibility
AmbigiousAuthSystem = AmbiguousAuthSystem
class InvalidAttribute(ClientException):
class InvalidAttributeValue(ClientException):