1 # Copyright (C) 2014 Nippon Telegraph and Telephone Corporation.
2 # Copyright (C) 2014 YAMAMOTO Takashi <yamamoto at valinux co jp>
4 # Licensed under the Apache License, Version 2.0 (the "License");
5 # you may not use this file except in compliance with the License.
6 # You may obtain a copy of the License at
8 # http://www.apache.org/licenses/LICENSE-2.0
10 # Unless required by applicable law or agreed to in writing, software
11 # distributed under the License is distributed on an "AS IS" BASIS,
12 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
14 # See the License for the specific language governing permissions and
15 # limitations under the License.
17 from ryu import exception
22 class _ExceptionBase(exception.RyuException):
23 def __init__(self, result):
25 super(_ExceptionBase, self).__init__(result=result)
28 class UnexpectedMultiReply(_ExceptionBase):
29 """Two or more replies are received for reply_muiti=False request."""
31 message = 'Unexpected Multi replies %(result)s'
34 class OFError(_ExceptionBase):
35 """OFPErrorMsg is received."""
37 message = 'OpenFlow errors %(result)s'
40 class InvalidDatapath(_ExceptionBase):
41 """Datapath is invalid.
43 This can happen when the bridge disconnects.
46 message = 'Datapath Invalid %(result)s'