/// <summary>
/// Gets all overall information tags of this controller tree.
/// </summary>
/// <returns>An <see cref="IReadOnlyCollection{T}"/> of <see cref="Tag"/> instances.</returns>
public IReadOnlyCollection <Tag> GetOverallInformationTags()
{
var overallInformationTags = new List <Tag>();
RootController.VisitAllNodes(
c => c.ChildsCollection,
c => overallInformationTags.AddRange(c.GetOverallInformationTags()));
return(overallInformationTags.ToReadOnly());
}
/// <summary>
/// Gets all <see cref="IAlarm"/> instances assigned to controller in this tree.
/// </summary>
/// <returns>An <see cref="IEnumerable{T}"/> of <see cref="IAlarm"/> implementations.</returns>
public IEnumerable <IAlarm> GetAllAlarms()
{
var alarms = new List <IAlarm>();
lock (_lockObject)
{
RootController.VisitAllNodes(c => c.ChildsCollection, c => alarms.AddRange(c.Alarms));
}
return(alarms);
}
/// <summary>
/// Updates the alarms in any controller. Compares the alarms of all controllers with
/// <paramref name="currentPlcAlarms"/>. Removes alarms from controllers that doesn't exist
/// in the <paramref name="currentPlcAlarms"/> anymore.
/// Add alarms from <paramref name="currentPlcAlarms"/> to controllers that not already were added.
/// </summary>
/// <param name="currentPlcAlarms">The current pending alarms from PLC.</param>
public void UpdateAlarms(IEnumerable <Alarm> currentPlcAlarms)
{
List <Alarm> currentAlarmsList = currentPlcAlarms.ToList();
List <Alarm> removedAlarms, addedAlarms, changedAlarms;
lock (_lockObject)
{
// iterate through all controllers and get the alarms
var curControllersByAlarmId = new Dictionary <uint, List <IController> >();
var collectAlarmsById = new Action <Controller>(c =>
{
foreach (var alarm in c.Alarms)
{
if (!curControllersByAlarmId.ContainsKey(alarm.Id))
{
var ctrlList = new List <IController> {
c
};
curControllersByAlarmId.Add(alarm.Id, ctrlList);
}
else
{
curControllersByAlarmId[alarm.Id].Add(c);
}
}
});
RootController.VisitAllNodes(c => c.ChildsCollection, collectAlarmsById);
// remove alarms
removedAlarms = RemoveAlarms(currentAlarmsList, curControllersByAlarmId);
// add or replace alarms
AddOrReplaceAlarms(currentAlarmsList, out addedAlarms, out changedAlarms);
}
// raise event
if (addedAlarms.Count > 0)
{
AlarmsAdded(addedAlarms);
}
// raise event
if (removedAlarms.Count > 0)
{
AlarmsRemoved(removedAlarms);
}
// raise event
if (changedAlarms.Count > 0)
{
AlarmsChanged(changedAlarms);
}
}
/// <summary>
/// Gets all controller instances in this tree as a collection.
/// </summary>
/// <returns>An <see cref="IReadOnlyCollection{T}"/> of <see cref="IController"/> instances.</returns>
public IReadOnlyCollection <IController> GetAllControllers()
{
if (RootController == null)
{
return(new IController[0]);
}
ICollection <IController> controllersToReturn = new List <IController>();
RootController.VisitAllNodes(c => c.ChildsCollection, controllersToReturn.Add);
return(controllersToReturn.ToReadOnly());
}
