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# Copyright (C) 2012 Nippon Telegraph and Telephone Corporation.
# Copyright (C) 2012 Isaku Yamahata <yamahata at private email ne 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.
import logging
from os_ken.controller import event
from os_ken.lib.dpid import dpid_to_str
from os_ken.base import app_manager
LOG = logging.getLogger(__name__)
class EventConfSwitchDelDPID(event.EventBase):
def __init__(self, dpid):
super(EventConfSwitchDelDPID, self).__init__()
self.dpid = dpid
def __str__(self):
return 'EventConfSwitchDelDPID<%s>' % dpid_to_str(self.dpid)
class EventConfSwitchSet(event.EventBase):
def __init__(self, dpid, key, value):
super(EventConfSwitchSet, self).__init__()
self.dpid = dpid
self.key = key
self.value = value
def __str__(self):
return 'EventConfSwitchSet<%s, %s, %s>' % (
dpid_to_str(self.dpid), self.key, self.value)
class EventConfSwitchDel(event.EventBase):
def __init__(self, dpid, key):
super(EventConfSwitchDel, self).__init__()
self.dpid = dpid
self.key = key
def __str__(self):
return 'EventConfSwitchDel<%s, %s>' % (dpid_to_str(self.dpid),
self.key)
class ConfSwitchSet(app_manager.OSKenApp):
def __init__(self):
super(ConfSwitchSet, self).__init__()
self.name = 'conf_switch'
self.confs = {}
def dpids(self):
return list(self.confs.keys())
def del_dpid(self, dpid):
del self.confs[dpid]
self.send_event_to_observers(EventConfSwitchDelDPID(dpid))
def keys(self, dpid):
return list(self.confs[dpid].keys())
def set_key(self, dpid, key, value):
conf = self.confs.setdefault(dpid, {})
conf[key] = value
self.send_event_to_observers(EventConfSwitchSet(dpid, key, value))
def get_key(self, dpid, key):
return self.confs[dpid][key]
def del_key(self, dpid, key):
del self.confs[dpid][key]
self.send_event_to_observers(EventConfSwitchDel(dpid, key))
# methods for TunnelUpdater
def __contains__(self, item):
"""(dpid, key) in <ConfSwitchSet instance>"""
(dpid, key) = item
return dpid in self.confs and key in self.confs[dpid]
def find_dpid(self, key, value):
for dpid, conf in self.confs.items():
if key in conf:
if conf[key] == value:
return dpid
return None
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