Add abstract functions for PoE enabling

python/nav/portadmin/handlers.py

@@ -15,8 +15,9 @@
 #
 """Interface definition for PortAdmin management handlers"""
 import time
-from typing import List, Tuple, Dict, Any, Sequence
+from typing import List, Tuple, Dict, Any, Sequence, Union, Optional
 import logging
+from dataclasses import dataclass
 
 from nav.models import manage
 from nav.portadmin.vlan import FantasyVlan
@@ -25,6 +26,17 @@
 _logger = logging.getLogger(__name__)
 
 
+@dataclass
+class PoeState:
+ """Class for defining PoE states.
+ `state` is the value used on the device itself.
+ `name` is a human readable name for the state
+ """
+
+ state: Union[str, int]
+ name: str
+
+
 class ManagementHandler:
  """Defines a common interface for all types of PortAdmin management handlers.
 
@@ -278,6 +290,33 @@
  return False
  return True
 
+ def get_poe_state_options(self) -> Sequence[PoeState]:
+ """Returns the available options for enabling/disabling PoE on this netbox"""
+ raise NotImplementedError
+
+ def set_poe_state(self, interface: manage.Interface, state: PoeState):
+ """Set state for enabling/disabling PoE on this interface.
+ Available options should be retrieved using `get_poe_state_options`
+ """
+ raise NotImplementedError
+
+ def get_poe_states(
+ self, interfaces: Sequence[manage.Interface] = None
+ ) -> Dict[int, Optional[PoeState]]:
+ """Retrieves current PoE state for interfaces on this device.
+
+ :param interfaces: Optional sequence of interfaces to filter for, as fetching
+ data for all interfaces may be a waste of time if only a
+ single interface is needed. If this parameter is omitted,
+ the default behavior is to filter on all Interface objects
+ registered for this device.
+ :returns: A dict mapping interfaces to their discovered PoE state.
+ The key matches the `ifindex` attribute for the related
+ Interface object.
+ The value will be None if the interface does not support PoE.
+ """
+ raise NotImplementedError
+
 
 class ManagementError(Exception):
  """Base exception class for device management errors"""