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 RemoteHelper(RemoteObject remoteObject) : this(remoteObject.SessionHandle.Session)
{
if (remoteObject.MyNodeId == NodeId.Null)
{
remoteObject.MyNodeId = BrowseNodeId(null, remoteObject.Name);
}
_parentNode = remoteObject.MyNodeId;
}
public void Monitor(RemoteObject remoteObject)
{
remoteObject.Execute(() =>
{
var invoker = new RemoteHelper(remoteObject);
return(invoker.WriteVariable(this));
});
}
public Variant Write(RemoteObject remoteObject)
{
return(remoteObject.Execute(() =>
{
var invoker = new RemoteHelper(remoteObject);
return invoker.WriteVariable(this);
}));
}
public void Announce(RemoteObject remoteObject)
{
remoteObject.Execute(() =>
{
var remoteHelper = new RemoteHelper(remoteObject);
remoteHelper.MonitorDataChange(this, remoteObject);
return(Variant.Null);
});
}
public Variant Invoke(RemoteObject remoteObject)
{
var methodNodeId = NodeId.Null;
if (remoteObject.NodeIdCache.ContainsKey(Name))
{
methodNodeId = remoteObject.NodeIdCache[Name];
}
var result = remoteObject.Execute(() =>
{
var invoker = new RemoteHelper(remoteObject);
return(invoker.CallMethod(this, ref methodNodeId));
});
if (methodNodeId != NodeId.Null && !remoteObject.NodeIdCache.ContainsKey(Name))
{
remoteObject.NodeIdCache[Name] = methodNodeId;
}
return(result);
}
