public void MonitorDataChange(RemoteDataMonitor monitor, RemoteObject remoteObject)
{
var monitoredItems = new List <MonitoredItem>
{
new DataMonitoredItem(BrowseNodeId(_parentNode, monitor.Name))
{
UserData = monitor,
DataChangeTrigger = DataChangeTrigger.StatusValue
}
};
remoteObject.SessionHandle.ClientSubscription().CreateMonitoredItems(monitoredItems,
new RequestSettings {
OperationTimeout = 10000
});
remoteObject.SessionHandle.SetDataChangeHandler(
(ss, args) =>
{
Logger.Info("Received DATA CHANGE ...");
foreach (var dataChange in args.DataChanges)
{
var remoteDataMonitor = (RemoteDataMonitor)dataChange.MonitoredItem.UserData;
remoteDataMonitor?.DataChange(dataChange.Value.WrappedValue);
}
});
remoteObject.SessionHandle.MonitoredItems.AddRange(monitoredItems);
}
public void Monitor(string name, Action <Variant> action)
{
try
{
var monitor = new RemoteDataMonitor
{
Name = name,
Value = Variant.Null,
Callback = action
};
monitor.Announce(this);
}
catch (Exception e)
{
ExceptionHandler.Log(e, $"Cannot subscribe MONITORED ITEM '{Name}.{name}'.");
}
}