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152 lines
4.2 KiB
152 lines
4.2 KiB
# 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, including decorator for re-raising |
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Quantum-type exceptions. SHOULD include dedicated exception logging. |
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""" |
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import logging |
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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 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 ApiError(Error): |
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def __init__(self, message='Unknown', code='Unknown'): |
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self.message = message |
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self.code = code |
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super(ApiError, self).__init__('%s: %s' % (code, message)) |
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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 Duplicate(Error): |
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pass |
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class NotAuthorized(Error): |
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pass |
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class NotEmpty(Error): |
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pass |
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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 BadInputError(Exception): |
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"""Error resulting from a client sending bad input to a server""" |
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pass |
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class MissingArgumentError(Error): |
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pass |
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def wrap_exception(f): |
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def _wrap(*args, **kw): |
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try: |
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return f(*args, **kw) |
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except Exception, e: |
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if not isinstance(e, Error): |
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#exc_type, exc_value, exc_traceback = sys.exc_info() |
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logging.exception('Uncaught exception') |
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#logging.error(traceback.extract_stack(exc_traceback)) |
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raise Error(str(e)) |
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raise |
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_wrap.func_name = f.func_name |
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return _wrap
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