115 lines
3.3 KiB
Python
115 lines
3.3 KiB
Python
# vim: tabstop=4 shiftwidth=4 softtabstop=4
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# Copyright 2011 Nicira Networks, Inc
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# All Rights Reserved.
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#
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# 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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"""
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Quantum base exception handling.
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"""
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class QuantumException(Exception):
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"""Base Quantum Exception
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Taken from nova.exception.NovaException
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To correctly use this class, inherit from it and define
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a 'message' property. That message will get printf'd
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with the keyword arguments provided to the constructor.
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"""
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message = _("An unknown exception occurred.")
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def __init__(self, **kwargs):
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try:
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self._error_string = self.message % kwargs
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except Exception:
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# at least get the core message out if something happened
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self._error_string = self.message
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def __str__(self):
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return self._error_string
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class NotFound(QuantumException):
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pass
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class ClassNotFound(NotFound):
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message = _("Class %(class_name)s could not be found")
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class NetworkNotFound(NotFound):
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message = _("Network %(net_id)s could not be found")
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class PortNotFound(NotFound):
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message = _("Port %(port_id)s could not be found "
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"on network %(net_id)s")
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class StateInvalid(QuantumException):
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message = _("Unsupported port state: %(port_state)s")
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class NetworkInUse(QuantumException):
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message = _("Unable to complete operation on network %(net_id)s. "
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"There is one or more attachments plugged into its ports.")
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class PortInUse(QuantumException):
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message = _("Unable to complete operation on port %(port_id)s "
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"for network %(net_id)s. The attachment '%(att_id)s"
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"is plugged into the logical port.")
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class AlreadyAttached(QuantumException):
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message = _("Unable to plug the attachment %(att_id)s into port "
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"%(port_id)s for network %(net_id)s. The attachment is "
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"already plugged into port %(att_port_id)s")
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class ProcessExecutionError(IOError):
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def __init__(self, stdout=None, stderr=None, exit_code=None, cmd=None,
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description=None):
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if description is None:
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description = "Unexpected error while running command."
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if exit_code is None:
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exit_code = '-'
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message = "%s\nCommand: %s\nExit code: %s\nStdout: %r\nStderr: %r" % (
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description, cmd, exit_code, stdout, stderr)
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IOError.__init__(self, message)
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class Error(Exception):
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def __init__(self, message=None):
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super(Error, self).__init__(message)
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class MalformedRequestBody(QuantumException):
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message = _("Malformed request body: %(reason)s")
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class Invalid(Error):
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pass
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class InvalidContentType(Invalid):
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message = _("Invalid content type %(content_type)s.")
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class NotImplementedError(Error):
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pass
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