294c99a6d2
The target preconditions (e.g. you need at least a topic to send) are the same for all drivers, so enforce them before we ever call into a driver. Change-Id: Ic4e9bd94bd9f060ec0662d2bb778c699903dddc4
40 lines
1.2 KiB
Python
40 lines
1.2 KiB
Python
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# Copyright 2013 Red Hat, Inc.
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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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__all__ = ['MessagingException', 'MessagingTimeout', 'InvalidTarget']
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class MessagingException(Exception):
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"""Base class for exceptions."""
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def __init__(self, msg=None):
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self.msg = msg
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def __str__(self):
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return self.msg
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class MessagingTimeout(MessagingException):
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"""Raised if message sending times out."""
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class InvalidTarget(MessagingException, ValueError):
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"""Raised if a target does not meet certain pre-conditions."""
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def __init__(self, msg, target):
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msg = msg + ":" + str(target)
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super(InvalidTarget, self).__init__(msg)
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self.target = target
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