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#!/usr/bin/python
# 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.
from charms.reactive import Endpoint
from charms.reactive import when, when_not, set_flag, clear_flag
class CandidPeer(Endpoint):
@when('endpoint.{endpoint_name}.joined')
def changed(self):
set_flag(self.expand_name('{endpoint_name}.connected'))
set_flag(self.expand_name('{endpoint_name}.available'))
@when_not('endpoint.{endpoint_name}.joined')
def broken(self):
clear_flag(self.expand_name('{endpoint_name}.available'))
clear_flag(self.expand_name('{endpoint_name}.connected'))
@property
def addresses(self):
"""
A flat list of all private addresses received from related units.
This list is de-duplicated and sorted by address, so it will be stable
for change comparison.
"""
addrs = {u.received_raw['private-address']
for u in self.all_joined_units}
return list(sorted(addrs))
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