/// <summary>
///
/// </summary>
/// <param name="monitoredItem"></param>
/// <param name="e"></param>
protected virtual void ItemNotificationHandler(MonitoredItem monitoredItem, MonitoredItemNotificationEventArgs e)
{
try
{
if (monitoredItem != null)
{
Opc.Ua.MonitoredItemNotification change = e.NotificationValue as Opc.Ua.MonitoredItemNotification;
if (change != null)
{
DataValue dv = change.Value;
if (dv != null)
{
ListViewItem[] lvis = ItemsLV.Items.Find(monitoredItem.ClientHandle.ToString(), false);
if (lvis.Length > 0)
{
DiagnosticListViewItem dlvi = lvis[0].Tag as DiagnosticListViewItem;
dlvi.UpdateInListView(lvis[0], dv, m_Session);
}
}
else
{
Utils.Trace("dv is null: {0}", MethodBase.GetCurrentMethod());
}
}
else
{
EventFieldList eventFields = e.NotificationValue as EventFieldList;
if (eventFields != null)
{
// get the event fields.
NodeId eventType = monitoredItem.GetFieldValue(eventFields, ObjectTypes.BaseEventType, BrowseNames.EventType) as NodeId;
string sourceName = monitoredItem.GetFieldValue(eventFields, ObjectTypes.BaseEventType, BrowseNames.SourceName) as string;
DateTime? time = monitoredItem.GetFieldValue(eventFields, ObjectTypes.BaseEventType, BrowseNames.Time) as DateTime?;
ushort? severity = monitoredItem.GetFieldValue(eventFields, ObjectTypes.BaseEventType, BrowseNames.Severity) as ushort?;
LocalizedText message = monitoredItem.GetFieldValue(eventFields, ObjectTypes.BaseEventType, BrowseNames.Message) as LocalizedText;
NodeId sourceNode = monitoredItem.GetFieldValue(eventFields, ObjectTypes.BaseEventType, BrowseNames.SourceNode) as NodeId;
if (eventType == new NodeId(ObjectTypes.AuditAddNodesEventType))
{
}
else
{
}
}
else
{
Utils.Trace("eventFields is null " + MethodBase.GetCurrentMethod());
}
}
}
}
catch (Exception exception)
{
GuiUtils.HandleException(this.Text, MethodBase.GetCurrentMethod(), exception);
}
}
/// <summary>
/// Updates the row with the data value.
/// </summary>
private void UpdateRow(DataRow row, MonitoredItemNotification notification)
{
DataValue value = notification.Value;
row[11] = value;
if (value != null)
{
row[1] = ImageList.Images[ClientUtils.GetImageIndex(Attributes.Value, value.Value)];
row[12] = (value.WrappedValue.TypeInfo != null) ? value.WrappedValue.TypeInfo.ToString() : String.Empty;
row[13] = value.WrappedValue;
row[14] = value.StatusCode;
row[15] = value.SourceTimestamp.ToLocalTime().ToString("hh:mm:ss.fff");
row[16] = value.ServerTimestamp.ToLocalTime().ToString("hh:mm:ss.fff");
}
}
/// <summary>
/// Processes a Publish response from the server.
/// </summary>
///
void ItemNotification(MonitoredItem monitoredItem, MonitoredItemNotificationEventArgs e)
{
if (InvokeRequired)
{
BeginInvoke(new MonitoredItemNotificationEventHandler(ItemNotification), monitoredItem, e);
return;
}
else if (!IsHandleCreated)
{
return;
}
try
{
if (monitoredItem != null)
{
string Key = monitoredItem.StartNodeId.Identifier.ToString() + "." + monitoredItem.RelativePath;
ListViewItem[] lvis = listView1.Items.Find(Key, true);
Opc.Ua.MonitoredItemNotification change = e.NotificationValue as Opc.Ua.MonitoredItemNotification;
if (change != null)
{
DataValue dv = change.Value;
if (lvis.Length == 1)
{
ListViewItem lvi = lvis[0];
int subindex = lvi.SubItems.IndexOfKey(Key);
ListViewItem.ListViewSubItem si = lvi.SubItems[subindex];
TypedMonitoredItem mi = si.Tag as TypedMonitoredItem;
if (mi != null)
{
if (mi.ClientHandle == monitoredItem.ClientHandle)
{
if (dv != null && dv.Value != null)
{
if (monitoredItem.Status.Id == StatusCodes.BadNodeIdUnknown)
{
// Randy said we would get this, but we don't
RemoveSessionItem(lvi, true);
}
else
{
si.Text = mi.ToString(dv);
}
}
else
{
// This is what we get
RemoveSessionItem(lvi, true);
}
}
else
{
Utils.Trace("(mi.ClientHandle != monitoredItem.ClientHandle " + MethodBase.GetCurrentMethod());
}
}
else
{
Utils.Trace("mi is null " + MethodBase.GetCurrentMethod());
}
}
else
{
Utils.Trace("lvis.Length != 1 " + MethodBase.GetCurrentMethod());
}
}
else
{
EventFieldList eventFields = e.NotificationValue as EventFieldList;
if (eventFields != null)
{
// get the event fields.
NodeId eventType = monitoredItem.GetFieldValue(eventFields, ObjectTypes.BaseEventType, BrowseNames.EventType) as NodeId;
string sourceName = monitoredItem.GetFieldValue(eventFields, ObjectTypes.BaseEventType, BrowseNames.SourceName) as string;
DateTime? time = monitoredItem.GetFieldValue(eventFields, ObjectTypes.BaseEventType, BrowseNames.Time) as DateTime?;
ushort? severity = monitoredItem.GetFieldValue(eventFields, ObjectTypes.BaseEventType, BrowseNames.Severity) as ushort?;
LocalizedText message = monitoredItem.GetFieldValue(eventFields, ObjectTypes.BaseEventType, BrowseNames.Message) as LocalizedText;
NodeId sourceNode = monitoredItem.GetFieldValue(eventFields, ObjectTypes.BaseEventType, BrowseNames.SourceNode) as NodeId;
//Utils.Trace("eventType: {0}, message: {1}, sourceName: {2} sourceNode: {3}", eventType.ToString(), message.Text.ToString(), sourceName.ToString(), sourceNode.ToString());
if (eventType == new NodeId(ObjectTypes.AuditActivateSessionEventType))
{
Utils.Trace("AuditActivateSessionEventType detected " + MethodBase.GetCurrentMethod());
AddSessions();
m_Subscription.ModifyItems();
m_Subscription.ApplyChanges();
}
}
else
{
Utils.Trace("eventFields is null " + MethodBase.GetCurrentMethod());
}
}
}
else
{
Utils.Trace("monitoredItem is null " + MethodBase.GetCurrentMethod());
}
}
catch (Exception exception)
{
GuiUtils.HandleException(this.Text, MethodBase.GetCurrentMethod(), exception);
}
}
