installers/charm/interfaces/osm-nbi/provides.py

   1 #!/usr/bin/python
   2 # Copyright 2020 Canonical Ltd.
   3 #
   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
   7 #
   8 #     http://www.apache.org/licenses/LICENSE-2.0
   9 #
  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 implied.
  13 #     See the License for the specific language governing permissions and
  14 #     limitations under the License.
  15
  16 from charms.reactive import RelationBase
  17 from charms.reactive import hook
  18 from charms.reactive import scopes
  19
  20
  21 class OsmNBIProvides(RelationBase):
  22     scope = scopes.GLOBAL
  23
  24     @hook("{provides:osm-nbi}-relation-joined")
  25     def joined(self):
  26         self.set_state("{relation_name}.joined")
  27
  28     @hook("{provides:osm-nbi}-relation-changed")
  29     def changed(self):
  30         self.set_state("{relation_name}.ready")
  31
  32     @hook("{provides:osm-nbi}-relation-{broken,departed}")
  33     def broken_departed(self):
  34         self.remove_state("{relation_name}.ready")
  35         self.remove_state("{relation_name}.joined")
  36
  37     @hook("{provides:osm-nbi}-relation-broken")
  38     def broken(self):
  39         self.set_state("{relation_name}.removed")
  40
  41     def send_connection(self, host, port=9999):
  42         conv = self.conversation()
  43         conv.set_remote("host", host)
  44         conv.set_remote("port", port)