1 # Copyright 2016 Intel Corporation.
3 # Licensed under the Apache License, Version 2.0 (the "License");
4 # you may not use this file except in compliance with the License.
5 # You may obtain a copy of the License at
7 # http://www.apache.org/licenses/LICENSE-2.0
9 # Unless required by applicable law or agreed to in writing, software
10 # distributed under the License is distributed on an "AS IS" BASIS,
11 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 # See the License for the specific language governing permissions and
13 # limitations under the License.
15 """Packet forwarder controller for Physical to Physical deployment
20 class PktFwdController(object):
21 """Packet forwarder controller for P2P deployment scenario.
24 _pktfwd_class: The packet forwarder class to be used.
25 _pktfwd: The packet forwarder object controlled by this controller
27 def __init__(self, deployment, pktfwd_class):
28 """Initializes up the prerequisites for the P2P deployment scenario.
30 :vswitch_class: the vSwitch class to be used.
32 self._deployment = deployment
33 self._logger = logging.getLogger(__name__)
34 self._pktfwd_class = pktfwd_class
35 self._pktfwd = pktfwd_class()
36 self._logger.debug('Creation using ' + str(self._pktfwd_class))
39 """Sets up the packet forwarder for p2p.
41 self._logger.debug('Setup using ' + str(self._pktfwd_class))
50 """Tears down the packet forwarder created in setup().
52 self._logger.debug('Stop using ' + str(self._pktfwd_class))
56 if self._deployment.find("p2p") == 0:
59 def __exit__(self, type_, value, traceback):
60 if self._deployment.find("p2p") == 0:
64 """Get the controlled packet forwarder
66 :return: The controlled IPktFwd
70 def dump_vswitch_flows(self):
71 """ Dumps flows from vswitch
73 raise NotImplementedError(
74 "The PktFwdController does not implement the "
75 "\"dump_vswitch_flows\" function.")