private void UpdateAlarm(ConditionState node, SimAlarmStateBackend alarm, string eventId = null)
{
ISystemContext context = _nodeManager.SystemContext;
// remove old event.
if (node.EventId.Value != null)
{
_events.Remove(Utils.ToHexString(node.EventId.Value));
}
node.EventId.Value = eventId != null?Encoding.UTF8.GetBytes(eventId) : Guid.NewGuid().ToByteArray();
node.Time.Value = DateTime.UtcNow;
node.ReceiveTime.Value = node.Time.Value;
// save the event for later lookup.
_events[Utils.ToHexString(node.EventId.Value)] = node;
// determine the retain state.
node.Retain.Value = true;
if (alarm != null)
{
node.Time.Value = alarm.Time;
node.Message.Value = new LocalizedText(alarm.Reason);
node.SetComment(context, alarm.Comment, alarm.UserName);
node.SetSeverity(context, alarm.Severity);
node.EnabledState.TransitionTime.Value = alarm.EnableTime;
node.SetEnableState(context, (alarm.State & SimConditionStatesEnum.Enabled) != 0);
if (node is AlarmConditionState)
{
AlarmConditionState nodeAlarm = (AlarmConditionState)node;
nodeAlarm.SetAcknowledgedState(context, (alarm.State & SimConditionStatesEnum.Acknowledged) != 0);
nodeAlarm.SetConfirmedState(context, (alarm.State & SimConditionStatesEnum.Confirmed) != 0);
nodeAlarm.SetActiveState(context, (alarm.State & SimConditionStatesEnum.Active) != 0);
nodeAlarm.SetSuppressedState(context, (alarm.State & SimConditionStatesEnum.Suppressed) != 0);
nodeAlarm.ActiveState.TransitionTime.Value = alarm.ActiveTime;
// not interested in inactive alarms
if (!nodeAlarm.ActiveState.Id.Value)
{
nodeAlarm.Retain.Value = false;
}
}
}
// check for deleted items.
if ((alarm.State & SimConditionStatesEnum.Deleted) != 0)
{
node.Retain.Value = false;
}
// not interested in disabled alarms.
if (!node.EnabledState.Id.Value)
{
node.Retain.Value = false;
}
}
