64 lines
2.1 KiB
Python
64 lines
2.1 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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from os_vif.i18n import _
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class ExceptionBase(Exception):
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"""Base Exception
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To correctly use this class, inherit from it and define
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a 'msg_fmt' property. That msg_fmt will get printf'd
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with the keyword arguments provided to the constructor.
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"""
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msg_fmt = _("An unknown exception occurred.")
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def __init__(self, message=None, **kwargs):
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self.kwargs = kwargs
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if not message:
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try:
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message = self.msg_fmt % 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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message = self.msg_fmt
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self.message = message
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super(ExceptionBase, self).__init__(message)
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def format_message(self):
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# NOTE(mrodden): use the first argument to the python Exception object
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# which should be our full NovaException message, (see __init__)
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return self.args[0]
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class LibraryNotInitialized(ExceptionBase):
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msg_fmt = _("Before using the os_vif library, you need to call "
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"os_vif.initialize()")
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class NoMatchingPlugin(ExceptionBase):
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msg_fmt = _("No VIF plugin was found with the name %(plugin_name)s")
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class PlugException(ExceptionBase):
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msg_fmt = _("Failed to plug VIF %(vif)s. Got error: %(err)s")
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class UnplugException(ExceptionBase):
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msg_fmt = _("Failed to unplug VIF %(vif)s. Got error: %(err)s")
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class NetworkMissingPhysicalNetwork(ExceptionBase):
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msg_fmt = _("Physical network is missing for network %(network_uuid)s")
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