55 lines
1.7 KiB
Python
55 lines
1.7 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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_FATAL_EXCEPTION_FORMAT_ERRORS = False
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class KdsException(Exception):
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"""Base Exception class.
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To correctly use this class, inherit from it and define
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a 'msg_fmt' 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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msg_fmt = _('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.msg_fmt % kwargs
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except Exception:
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if _FATAL_EXCEPTION_FORMAT_ERRORS:
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raise
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else:
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# at least get the core message out if something happened
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self._error_string = self.msg_fmt
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def __str__(self):
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return self._error_string
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class BackendException(KdsException):
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msg_fmt = _("Failed to load the '%(backend)s' backend because it is not "
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"allowed. Allowed backends are: %(allowed)s")
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class IntegrityError(KdsException):
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msg_fmt = _('Cannot set key data for %(name)s: %(reason)s')
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class GroupStatusChanged(IntegrityError):
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def __init__(self, **kwargs):
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kwargs.setdefault('reason', "Can't change group status of a host")
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super(GroupStatusChanged, self).__init__(**kwargs)
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