os-ken/ryu/controller/ofp_event.py
Yoshihiro Kaneko 2eb59a09ff doc: add components page
port from wiki.

dummy quantumclient is necessary to import ryu.app.quantum_adapter by
sphinx.ext.autodoc.

Signed-off-by: Yoshihiro Kaneko <ykaneko0929@gmail.com>
2014-05-27 20:24:50 +09:00

90 lines
2.3 KiB
Python

# Copyright (C) 2012 Nippon Telegraph and Telephone Corporation.
# Copyright (C) 2011 Isaku Yamahata <yamahata at valinux co jp>
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
# implied.
# See the License for the specific language governing permissions and
# limitations under the License.
"""
OpenFlow event definitions.
"""
import inspect
from ryu.controller import handler
from ryu import ofproto
from ryu import utils
from . import event
class EventOFPMsgBase(event.EventBase):
def __init__(self, msg):
super(EventOFPMsgBase, self).__init__()
self.msg = msg
#
# Create ofp_event type corresponding to OFP Msg
#
_OFP_MSG_EVENTS = {}
def _ofp_msg_name_to_ev_name(msg_name):
return 'Event' + msg_name
def ofp_msg_to_ev(msg):
return ofp_msg_to_ev_cls(msg.__class__)(msg)
def ofp_msg_to_ev_cls(msg_cls):
name = _ofp_msg_name_to_ev_name(msg_cls.__name__)
return _OFP_MSG_EVENTS[name]
def _create_ofp_msg_ev_class(msg_cls):
name = _ofp_msg_name_to_ev_name(msg_cls.__name__)
# print 'creating ofp_event %s' % name
if name in _OFP_MSG_EVENTS:
return
cls = type(name, (EventOFPMsgBase,),
dict(__init__=lambda self, msg:
super(self.__class__, self).__init__(msg)))
globals()[name] = cls
_OFP_MSG_EVENTS[name] = cls
def _create_ofp_msg_ev_from_module(ofp_parser):
# print mod
for _k, cls in inspect.getmembers(ofp_parser, inspect.isclass):
if not hasattr(cls, 'cls_msg_type'):
continue
_create_ofp_msg_ev_class(cls)
for ofp_mods in ofproto.get_ofp_modules().values():
ofp_parser = ofp_mods[1]
# print 'loading module %s' % ofp_parser
_create_ofp_msg_ev_from_module(ofp_parser)
class EventOFPStateChange(event.EventBase):
def __init__(self, dp):
super(EventOFPStateChange, self).__init__()
self.datapath = dp
handler.register_service('ryu.controller.ofp_handler')