juju/client/overrides.py

   1 from collections import namedtuple
   2
   3 from .facade import Type
   4
   5 __all__ = [
   6     'Delta',
   7 ]
   8
   9
  10 class Delta(Type):
  11     """A single websocket delta.
  12
  13     :ivar entity: The entity name, e.g. 'unit', 'application'
  14     :vartype entity: str
  15
  16     :ivar type: The delta type, e.g. 'add', 'change', 'remove'
  17     :vartype type: str
  18
  19     :ivar data: The raw delta data
  20     :vartype data: dict
  21
  22     NOTE: The 'data' variable above is being incorrectly cross-linked by a
  23     Sphinx bug: https://github.com/sphinx-doc/sphinx/issues/2549
  24
  25     """
  26     _toSchema = {'deltas': 'deltas'}
  27     _toPy = {'deltas': 'deltas'}
  28
  29     def __init__(self, deltas=None):
  30         """
  31         :param deltas: [str, str, object]
  32
  33         """
  34         self.deltas = deltas
  35
  36         Change = namedtuple('Change', 'entity type data')
  37         change = Change(*self.deltas)
  38
  39         self.entity = change.entity
  40         self.type = change.type
  41         self.data = change.data
  42
  43     @classmethod
  44     def from_json(cls, data):
  45         return cls(deltas=data)