public void RemoveMonitoredItem(List <uint> chList)
{
try
{
var miList = new List <MonitoredItem>();
foreach (var ch in chList)
{
foreach (var mi in subscription.MonitoredItems)
{
if (mi.ClientHandle == ch)
{
miList.Add(mi);
break;
}
}
}
subscription.RemoveItems(miList);
subscription.ApplyChanges();
if (subscription.MonitoredItemCount == 0)
{
if (!session.RemoveSubscription(subscription))
{
throw new Exception("Removing subscription was failed.");
}
}
}
catch (Exception ex)
{
MessagePassing(ex);
Close();
}
}
private MonitoredItem AddMonitorItem(NodeId startNodeId, Opc.Ua.EventFilter eventFilter)
{
var monitorItem = CreateMonitoredItem(startNodeId, eventFilter);
monitorItem.Notification += MonitorItem_Notification;
_subscription.AddItem(monitorItem);
_subscription.ApplyChanges();
monitorItem.Subscription.ConditionRefresh();
return(monitorItem);
}
/// <summary>
///
/// </summary>
public void Close()
{
foreach (Form form in m_Forms)
{
form.Close();
}
m_Forms.Clear();
foreach (ListViewItem lvi in listView1.Items)
{
RemoveSessionItem(lvi, false);
}
m_Subscription.ApplyChanges();
m_Session.RemoveSubscription(m_Subscription);
}
private void Subscribe(NodeId[] nodeIds)
{
var monItems = new List <MonitoredItem>();
var newNodeIds = new List <NodeId>();
lock (_subscribedValues)
{
for (int i = 0; i < nodeIds.Length; i++)
{
if (!_subscribedValues.ContainsKey(nodeIds[i]))
{
var monitoredItem = CreateMonitoredItem(nodeIds[i]);
monitoredItem.Notification += MonitoredItem_Notification;
monItems.Add(monitoredItem);
newNodeIds.Add(nodeIds[i]);
_subscribedValues.Add(nodeIds[i], new VariableValue(monitoredItem)
{
LastRead = DateTimeOffset.UtcNow, Value = new DataValue(Variant.Null)
});
}
}
}
if (monItems.Count > 0)
{
// Force read of current value.
InitializeNodeValues(nodeIds);
_logger.LogInformation("Subscribing to {0} data values", monItems.Count);
_subscription.AddItems(monItems);
_subscription.ApplyChanges();
}
}
public void RemoveMonitoredItem(Subscription subscription, string monitoredItemNodeId)
{
var tmp = subscription.MonitoredItems.FirstOrDefault(x => x.StartNodeId.ToString() == monitoredItemNodeId);
subscription.RemoveItem(tmp);
subscription.ApplyChanges();
}
/// <summary>
/// Creates the subscription.
/// </summary>
private void CreateSubscription()
{
m_subscription = new Subscription();
m_subscription.Handle = this;
m_subscription.DisplayName = null;
m_subscription.PublishingInterval = 1000;
m_subscription.KeepAliveCount = 10;
m_subscription.LifetimeCount = 100;
m_subscription.MaxNotificationsPerPublish = 1000;
m_subscription.PublishingEnabled = true;
m_subscription.TimestampsToReturn = TimestampsToReturn.Both;
m_session.AddSubscription(m_subscription);
m_subscription.Create();
m_monitoredItem = new MonitoredItem();
m_monitoredItem.StartNodeId = m_areaId;
m_monitoredItem.AttributeId = Attributes.EventNotifier;
m_monitoredItem.SamplingInterval = 0;
m_monitoredItem.QueueSize = 1000;
m_monitoredItem.DiscardOldest = true;
ChangeFilter(m_filter, false);
m_monitoredItem.Notification += new MonitoredItemNotificationEventHandler(MonitoredItem_Notification);
m_subscription.AddItem(m_monitoredItem);
m_subscription.ApplyChanges();
}
public void CreateMonitoredItem(NodeId nodeId)
{
if (m_session != null)
{
Subscription subscription = m_session.DefaultSubscription;
if (m_session.AddSubscription(subscription))
{
subscription.Create();
}
// add the new monitored item.
MonitoredItem monitoredItem = new MonitoredItem(subscription.DefaultItem);
monitoredItem.StartNodeId = nodeId;
monitoredItem.AttributeId = Attributes.Value;
monitoredItem.DisplayName = nodeId.Identifier.ToString();
monitoredItem.MonitoringMode = MonitoringMode.Reporting;
monitoredItem.SamplingInterval = 0;
monitoredItem.QueueSize = 0;
monitoredItem.DiscardOldest = true;
monitoredItem.Notification += MonitoredItem_Notification;
subscription.AddItem(monitoredItem);
subscription.ApplyChanges();
}
}
public void CreateMonitoredItem(
Session session, Subscription subscription, NodeId nodeId, MonitoringMode mode)
{
if (subscription == null)
{
subscription = session.DefaultSubscription;
if (session.AddSubscription(subscription))
{
subscription.Create();
}
}
else
{
session.AddSubscription(subscription);
}
// add the new monitored item.
MonitoredItem monitoredItem = new MonitoredItem(subscription.DefaultItem);
monitoredItem.StartNodeId = nodeId;
monitoredItem.AttributeId = Attributes.Value;
monitoredItem.DisplayName = nodeId.Identifier.ToString();
monitoredItem.MonitoringMode = mode;
monitoredItem.SamplingInterval = mode == MonitoringMode.Sampling ? 1000 : 0;
monitoredItem.QueueSize = 0;
monitoredItem.DiscardOldest = true;
monitoredItem.Notification += new MonitoredItemNotificationEventHandler(MonitoredItem_Notification);
subscription.AddItem(monitoredItem);
subscription.ApplyChanges();
}
/// <summary>
/// Initializes a new instance of the <see cref="AuditEventForm"/> class.
/// </summary>
/// <param name="session">The session.</param>
/// <param name="subscription">The subscription.</param>
public AuditEventForm(Session session, Subscription subscription)
{
InitializeComponent();
m_session = session;
m_subscription = subscription;
// a table used to track event types.
m_eventTypeMappings = new Dictionary <NodeId, NodeId>();
// the filter to use.
m_filter = new FilterDefinition();
m_filter.AreaId = ObjectIds.Server;
m_filter.Severity = EventSeverity.Min;
m_filter.IgnoreSuppressedOrShelved = true;
m_filter.EventTypes = new NodeId[] { ObjectTypeIds.AuditUpdateMethodEventType };
// find the fields of interest.
m_filter.SelectClauses = m_filter.ConstructSelectClauses(m_session, ObjectTypeIds.AuditUpdateMethodEventType);
// declate callback.
m_MonitoredItem_Notification = new MonitoredItemNotificationEventHandler(MonitoredItem_Notification);
// create a monitored item based on the current filter settings.
m_monitoredItem = m_filter.CreateMonitoredItem(m_session);
// set up callback for notifications.
m_monitoredItem.Notification += m_MonitoredItem_Notification;
m_subscription.AddItem(m_monitoredItem);
m_subscription.ApplyChanges();
}
public void DeleteMonitoredItem(uint subscriptionId, uint clientHandle)
{
Subscription sub = GetSubscription(subscriptionId);
sub.RemoveItem(sub.FindItemByClientHandle(clientHandle));
sub.ApplyChanges();
}
/// <summary>
/// Adds a item to a subscription.
/// </summary>
public void Subscribe(Subscription subscription, ReferenceDescription reference)
{
MonitoredItem monitoredItem = new MonitoredItem(subscription.DefaultItem);
monitoredItem.DisplayName = subscription.Session.NodeCache.GetDisplayText(reference);
monitoredItem.StartNodeId = (NodeId)reference.NodeId;
monitoredItem.NodeClass = (NodeClass)reference.NodeClass;
monitoredItem.AttributeId = Attributes.Value;
monitoredItem.SamplingInterval = 0;
monitoredItem.QueueSize = 1;
// add condition fields to any event filter.
EventFilter filter = monitoredItem.Filter as EventFilter;
if (filter != null)
{
monitoredItem.AttributeId = Attributes.EventNotifier;
monitoredItem.QueueSize = 0;
}
subscription.AddItem(monitoredItem);
subscription.ApplyChanges();
// raise event.
if (m_monitorEvent != null)
{
MonitorEventArgs args = new MonitorEventArgs(subscription, monitoredItem);
m_monitorEvent(this, args);
}
}
void StartMonitoring()
{
foreach (var item in MonitoredMeasurements)
{
var nodeId = OpcUaHelper.FindNode(item.Path, ObjectIds.ObjectsFolder, l_session);
var sub = new Subscription
{
PublishingInterval = item.MonitorResolution,
PublishingEnabled = true,
LifetimeCount = 0,
KeepAliveCount = 0,
DisplayName = item.Path,
Priority = byte.MaxValue
};
MonitoredItem monitoredItem = new MonitoredItem()
{
StartNodeId = nodeId,
AttributeId = Attributes.Value,
DisplayName = item.Name,
SamplingInterval = item.MonitorResolution
};
sub.AddItem(monitoredItem);
l_session.AddSubscription(sub);
sub.Create();
sub.ApplyChanges();
monitoredItem.Notification += (monitored, args) =>
{
var p = (MonitoredItemNotification)args.NotificationValue;
MonitorData(item, p.Value);
};
}
}
/// <summary>
/// Moves the grid to the next state.
/// </summary>
public void Next()
{
if (m_state == DisplayState.ViewUpdates)
{
return;
}
SetDisplayState(++m_state);
// clear any selection.
foreach (DataGridViewRow row in ResultsDV.Rows)
{
row.Selected = false;
}
if (m_subscription != null)
{
// apply any changes.
if (m_state == DisplayState.ApplyChanges)
{
m_subscription.ApplyChanges();
foreach (DataRow row in m_dataset.Tables[0].Rows)
{
MonitoredItem monitoredItem = (MonitoredItem)row[0];
UpdateRow(row, monitoredItem.Status);
}
}
}
}
public void SubscribedMonitoredItems(ICollection <MonitoredItem> items)
{
if (_subscription == null || !_subscription.Created)
{
return;
}
if (items == null || !items.Any())
{
return;
}
if (_callback != null)
{
foreach (var monitoredItem in items)
{
monitoredItem.Notification += _callback.Invoke;
}
}
try
{
_subscription.AddItems(items);
_subscription.ApplyChanges();
}
catch (ServiceResultException ex)
{
if (ex.StatusCode == StatusCodes.BadRequestTimeout)
{
SysLog.Warn("BadRequestTimeout error message reported from server.");
}
else
{
SysLog.Warn("Error reported from server. Message: ", ex);
OnCheckConnectionTimerOnElapsed(this, new EventArgs() as ElapsedEventArgs);
}
}
catch (Exception ex)
{
SysLog.Error("Unexpected error.", ex);
OnCheckConnectionTimerOnElapsed(this, new EventArgs() as ElapsedEventArgs);
}
finally
{
SetCurrentListMonitoredItemsSubscribed(items);
}
}
private void subscribeToolStripMenuItem_Click(object sender, EventArgs e)
{
try
{
GetTanks();
if (m_session == null)
{
return;
}
if (m_subscription != null)
{
m_session.RemoveSubscription(m_subscription);
m_subscription = null;
}
if (m_subscription == null)
{
m_subscription = new Subscription();
m_subscription.PublishingEnabled = true;
m_subscription.PublishingInterval = 1000;
m_subscription.Priority = 1;
m_subscription.KeepAliveCount = 10;
m_subscription.LifetimeCount = 20;
m_subscription.MaxNotificationsPerPublish = 1000;
m_session.AddSubscription(m_subscription);
m_subscription.Create();
}
if (monitoredItem == null)
{
monitoredItem = new MonitoredItem(m_subscription.DefaultItem);
monitoredItem.StartNodeId = monitoredItem.AttributeId = Attributes.Value;
monitoredItem.MonitoringMode = MonitoringMode.Reporting;
monitoredItem.SamplingInterval = 1000;
monitoredItem.QueueSize = 0;
monitoredItem.DiscardOldest = true;
// define event handler for this item, and then add to subscription
monitoredItem.Notification += new MonitoredItemNotificationEventHandler(monitoredItem_Notification);
m_subscription.AddItem(monitoredItem);
}
m_subscription.ApplyChanges();
if (outputWindow == null)
{
outputWindow = new SubscriptionOutput();
}
}
catch (Exception exception)
{
ClientUtils.HandleException(this.Text, exception);
}
}
private void StartArchive(object parameter)
{
var interval = SelectedArchiveInfo.ArchiveInterval;
if (interval == ArchiveInterval.None)
{
//_subscription.PublishingEnabled = true;
_subscription.SetMonitoringMode(MonitoringMode.Reporting, _subscription.MonitoredItems.ToList());
_subscription.ApplyChanges();
}
else
{
var timer = new Timer(Archive, interval, TimeSpan.FromSeconds(1), TimeSpan.FromSeconds((int)interval));
_timers.Add(interval, timer);
}
SelectedArchiveInfo.Running = true;
}
/// <summary>
/// Creates the subscription.
/// </summary>
private void CreateSubscription()
{
if (m_session == null)
{
return;
}
m_subscription = new Subscription();
m_subscription.Handle = this;
m_subscription.DisplayName = null;
m_subscription.PublishingInterval = 1000;
m_subscription.KeepAliveCount = 10;
m_subscription.LifetimeCount = 100;
m_subscription.MaxNotificationsPerPublish = 1000;
m_subscription.PublishingEnabled = true;
m_subscription.TimestampsToReturn = TimestampsToReturn.Both;
m_session.AddSubscription(m_subscription);
m_subscription.Create();
m_monitoredItem = new MonitoredItem();
m_monitoredItem.StartNodeId = m_nodeId;
m_monitoredItem.AttributeId = Attributes.Value;
m_monitoredItem.SamplingInterval = (int)SamplingIntervalNP.Value;
m_monitoredItem.QueueSize = 1000;
m_monitoredItem.DiscardOldest = true;
// specify aggregate filter.
if (AggregateCB.SelectedItem != null)
{
AggregateFilter filter = new AggregateFilter();
if (StartTimeCK.Checked)
{
filter.StartTime = StartTimeDP.Value.ToUniversalTime();
}
else
{
filter.StartTime = DateTime.UtcNow;
}
filter.ProcessingInterval = (double)ResampleIntervalNP.Value;
filter.AggregateType = ((AvailableAggregate)AggregateCB.SelectedItem).NodeId;
if (filter.AggregateType != null)
{
m_monitoredItem.Filter = filter;
}
}
m_monitoredItem.Notification += new MonitoredItemNotificationEventHandler(MonitoredItem_Notification);
m_subscription.AddItem(m_monitoredItem);
m_subscription.ApplyChanges();
SubscriptionStateChanged();
}
/// <summary>
/// Handles the Click event of the Browse_MonitorMI control.
/// </summary>
/// <param name="sender">The source of the event.</param>
/// <param name="e">The <see cref="System.EventArgs"/> instance containing the event data.</param>
private void Browse_MonitorMI_Click(object sender, EventArgs e)
{
try
{
// check if operation is currently allowed.
if (m_session == null || BrowseNodesTV.SelectedNode == null)
{
return;
}
// can only subscribe to local variables.
ReferenceDescription reference = (ReferenceDescription)BrowseNodesTV.SelectedNode.Tag;
if (reference.NodeId.IsAbsolute || reference.NodeClass != NodeClass.Variable)
{
return;
}
ListViewItem item = CreateMonitoredItem((NodeId)reference.NodeId, Utils.Format("{0}", reference));
m_subscription.ApplyChanges();
MonitoredItem monitoredItem = (MonitoredItem)item.Tag;
if (ServiceResult.IsBad(monitoredItem.Status.Error))
{
item.SubItems[8].Text = monitoredItem.Status.Error.StatusCode.ToString();
}
item.SubItems.Add(monitoredItem.DisplayName);
item.SubItems[1].Text = monitoredItem.MonitoringMode.ToString();
item.SubItems[2].Text = monitoredItem.SamplingInterval.ToString();
item.SubItems[3].Text = DeadbandFilterToText(monitoredItem.Filter);
MonitoredItemsLV.Columns[0].Width = -2;
MonitoredItemsLV.Columns[1].Width = -2;
MonitoredItemsLV.Columns[8].Width = -2;
}
catch (Exception exception)
{
ClientUtils.HandleException(this.Text, exception);
}
}
/// <summary>
/// Monitor the specified tag for changes
/// </summary>
/// <typeparam name="T">the type of tag to monitor</typeparam>
/// <param name="tag">The fully-qualified identifier of the tag. You can specify a subfolder by using a comma delimited name.
/// E.g: the tag `foo.bar` monitors the tag `bar` on the folder `foo`</param>
/// <param name="callback">the callback to execute when the value is changed.
/// The first parameter is a MonitorEvent object which represents the data point, the second is an `unsubscribe` function to unsubscribe the callback</param>
public void Monitor <T>(string tag, Action <ReadEvent <T>, Action> callback)
{
var node = FindNode(tag);
var sub = new Subscription
{
PublishingInterval = _options.DefaultMonitorInterval,
PublishingEnabled = true,
LifetimeCount = _options.SubscriptionLifetimeCount,
KeepAliveCount = _options.SubscriptionKeepAliveCount,
DisplayName = tag,
Priority = byte.MaxValue
};
var item = new MonitoredItem
{
StartNodeId = node.NodeId,
AttributeId = Attributes.Value,
DisplayName = tag,
SamplingInterval = _options.DefaultMonitorInterval
};
sub.AddItem(item);
_session.AddSubscription(sub);
sub.Create();
sub.ApplyChanges();
item.Notification += (monitoredItem, args) =>
{
var p = (MonitoredItemNotification)args.NotificationValue;
var t = p.Value.WrappedValue.Value;
Action unsubscribe = () =>
{
sub.RemoveItems(sub.MonitoredItems);
sub.Delete(true);
_session.RemoveSubscription(sub);
sub.Dispose();
};
var monitorEvent = new ReadEvent <T>();
monitorEvent.Value = (T)t;
monitorEvent.SourceTimestamp = p.Value.SourceTimestamp;
monitorEvent.ServerTimestamp = p.Value.ServerTimestamp;
if (StatusCode.IsGood(p.Value.StatusCode))
{
monitorEvent.Quality = Quality.Good;
}
if (StatusCode.IsBad(p.Value.StatusCode))
{
monitorEvent.Quality = Quality.Bad;
}
callback(monitorEvent, unsubscribe);
};
}
public void AddItem(string name, bool requestEvent)
{
var newMonitoredItem = new MonitoredItem(subscription.DefaultItem, true)
{
DisplayName = name, StartNodeId = new NodeId(name, NAMESPACE), MonitoringMode = requestEvent ? MonitoringMode.Reporting : MonitoringMode.Sampling
};
nodeNameHandle.Add(name, newMonitoredItem.ClientHandle);
subscription.AddItem(newMonitoredItem);
subscription.ApplyChanges();
}
/// <summary>
/// Creates a subscription to a monitored item on an OPC UA server
/// </summary>
public static void CreateMonitoredItem(NodeLookup nodeLookup)
{
// find the right session using our lookup
Session matchingSession = null;
foreach (Session session in m_sessions)
{
char[] trimChars = { '/', ' ' };
if (session.Endpoint.EndpointUrl.TrimEnd(trimChars).Equals(nodeLookup.EndPointURL.ToString().TrimEnd(trimChars), StringComparison.OrdinalIgnoreCase))
{
matchingSession = session;
break;
}
}
if (matchingSession != null)
{
Subscription subscription = matchingSession.DefaultSubscription;
if (matchingSession.AddSubscription(subscription))
{
subscription.Create();
}
// get the DisplayName for the node.
Node node = matchingSession.ReadNode(nodeLookup.NodeID);
string nodeDisplayName = node.DisplayName.Text;
if (String.IsNullOrEmpty(nodeDisplayName))
{
nodeDisplayName = nodeLookup.NodeID.Identifier.ToString();
}
// add the new monitored item.
MonitoredItem monitoredItem = new MonitoredItem(subscription.DefaultItem);
monitoredItem.StartNodeId = nodeLookup.NodeID;
monitoredItem.AttributeId = Attributes.Value;
monitoredItem.DisplayName = nodeDisplayName;
monitoredItem.MonitoringMode = MonitoringMode.Reporting;
monitoredItem.SamplingInterval = 1000;
monitoredItem.QueueSize = 0;
monitoredItem.DiscardOldest = true;
monitoredItem.Notification += new MonitoredItemNotificationEventHandler(MonitoredItem_Notification);
subscription.AddItem(monitoredItem);
subscription.ApplyChanges();
}
else
{
Trace("ERROR: Could not find endpoint URL " + nodeLookup.EndPointURL.ToString() + " in active server sessions, NodeID " + nodeLookup.NodeID.Identifier.ToString() + " NOT published!");
Trace("To fix this, please update your publishednodes.json file with the updated endpoint URL!");
}
}
/// <summary>
/// Apply any changes to the set of items.
/// </summary>
public void ApplyChanges()
{
if (m_subscription != null)
{
m_subscription.ApplyChanges();
foreach (ListViewItem listItem in ItemsLV.Items)
{
UpdateItem(listItem, listItem.Tag);
}
AdjustColumns();
}
}
/// <summary>
/// Updates the items with the current filter.
/// </summary>
private void UpdateItems()
{
List <FilterDeclarationField> fields = new List <FilterDeclarationField>();
foreach (FilterDeclarationField field in m_filter.Fields)
{
// only keep fields that are used.
if (field.Selected || field.FilterEnabled)
{
fields.Add(field);
continue;
}
// add mandatory fields.
switch (field.InstanceDeclaration.BrowsePathDisplayText)
{
case Opc.Ua.BrowseNames.EventId:
case Opc.Ua.BrowseNames.EventType:
case Opc.Ua.BrowseNames.Time:
{
field.Selected = true;
fields.Add(field);
break;
}
}
}
m_filter.Fields = fields;
// construct filter.
EventFilter filter = m_filter.GetFilter();
// update items.
for (int ii = 0; ii < m_dataset.Tables[0].Rows.Count; ii++)
{
MonitoredItem monitoredItem = (MonitoredItem)m_dataset.Tables[0].Rows[ii][0];
monitoredItem.Filter = filter;
}
// apply changes.
m_subscription.ApplyChanges();
// show results.
for (int ii = 0; ii < m_dataset.Tables[0].Rows.Count; ii++)
{
DataRow row = m_dataset.Tables[0].Rows[ii];
MonitoredItem monitoredItem = (MonitoredItem)row[0];
UpdateRow(row, monitoredItem.Status);
}
}
private void addItemToSubscription(DataItem aItem)
{
var lMonitoredItem = new MonitoredItem(mSubscription.DefaultItem);
lMonitoredItem.StartNodeId = aItem.mNodeId;
lMonitoredItem.AttributeId = Attributes.Value;
lMonitoredItem.MonitoringMode = MonitoringMode.Reporting;
lMonitoredItem.SamplingInterval = aItem.mSampling;
lMonitoredItem.QueueSize = 1;
lMonitoredItem.DiscardOldest = true;
lMonitoredItem.Handle = aItem;
aItem.mClientHandle = lMonitoredItem.ClientHandle;
mSubscription.AddItem(lMonitoredItem);
mSubscription.ApplyChanges();
if (lMonitoredItem.Status.Error != null && StatusCode.IsBad(lMonitoredItem.Status.Error.StatusCode))
{
lMonitoredItem.Handle = null;
mSubscription.RemoveItem(lMonitoredItem);
mSubscription.ApplyChanges();
throw new InvalidOperationException("Creation of data monitored item failed. ");
}
}
/// <summary>
/// Monitor a value from server
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="tag"></param>
/// <param name="callback"></param>
public void MonitorValue <T>(string tag, Action <T, Action> callback)
{
var node = new NodeId(tag);
var sub = new Subscription
{
PublishingInterval = 0,
PublishingEnabled = true,
LifetimeCount = 0,
KeepAliveCount = 0,
DisplayName = tag,
Priority = byte.MaxValue
};
var item = new MonitoredItem
{
StartNodeId = node,
AttributeId = Attributes.Value,
DisplayName = tag,
SamplingInterval = 100
};
sub.AddItem(item);
m_session.AddSubscription(sub);
sub.Create();
sub.ApplyChanges();
item.Notification += (monitoredItem, args) =>
{
var notification = (MonitoredItemNotification)args.NotificationValue;
if (notification == null)
{
return; //如果为空就退出
}
var t = notification.Value.WrappedValue.Value;
Action unsubscribe = () =>
{
sub.RemoveItems(sub.MonitoredItems);
sub.Delete(true);
m_session.RemoveSubscription(sub);
sub.Dispose();
};
callback?.Invoke((T)t, unsubscribe);
};
}
/// <summary>
/// Creates the subscription.
/// </summary>
private void CreateSubscription()
{
// create the default subscription.
m_subscription = new Subscription();
m_subscription.DisplayName = null;
m_subscription.PublishingInterval = 1000;
m_subscription.KeepAliveCount = 10;
m_subscription.LifetimeCount = 100;
m_subscription.MaxNotificationsPerPublish = 1000;
m_subscription.PublishingEnabled = true;
m_subscription.TimestampsToReturn = TimestampsToReturn.Both;
m_session.AddSubscription(m_subscription);
m_subscription.Create();
// a table used to track event types.
m_eventTypeMappings = new Dictionary <NodeId, NodeId>();
NodeId knownEventId = ExpandedNodeId.ToNodeId(ObjectTypeIds.SystemCycleStatusEventType, m_session.NamespaceUris);
m_knownEventTypes = new Dictionary <NodeId, Type>();
m_knownEventTypes.Add(knownEventId, typeof(SystemCycleStatusEventState));
TypeDeclaration type = new TypeDeclaration();
type.NodeId = ExpandedNodeId.ToNodeId(ObjectTypeIds.SystemCycleStatusEventType, m_session.NamespaceUris);
type.Declarations = ClientUtils.CollectInstanceDeclarationsForType(m_session, type.NodeId);
// the filter to use.
m_filter = new FilterDeclaration(type, null);
// declate callback.
m_MonitoredItem_Notification = new MonitoredItemNotificationEventHandler(MonitoredItem_Notification);
// create a monitored item based on the current filter settings.
m_monitoredItem = new MonitoredItem();
m_monitoredItem.StartNodeId = Opc.Ua.ObjectIds.Server;
m_monitoredItem.AttributeId = Attributes.EventNotifier;
m_monitoredItem.SamplingInterval = 0;
m_monitoredItem.QueueSize = 1000;
m_monitoredItem.DiscardOldest = true;
m_monitoredItem.Filter = m_filter.GetFilter();
// set up callback for notifications.
m_monitoredItem.Notification += m_MonitoredItem_Notification;
m_subscription.AddItem(m_monitoredItem);
m_subscription.ApplyChanges();
}
/// <summary>Monitor a value from server</summary>
/// <typeparam name="T"></typeparam>
/// <param name="tag"></param>
/// <param name="callback"></param>
public void MonitorValue <T>(string tag, Action <T, Action> callback)
{
NodeId nodeId = new NodeId(tag);
Subscription sub = new Subscription()
{
PublishingInterval = 0,
PublishingEnabled = true,
LifetimeCount = 0,
KeepAliveCount = 0,
DisplayName = tag,
Priority = byte.MaxValue
};
MonitoredItem monitoredItem1 = new MonitoredItem()
{
StartNodeId = nodeId,
AttributeId = 13,
DisplayName = tag,
SamplingInterval = 100
};
sub.AddItem(monitoredItem1);
this.m_session.AddSubscription(sub);
sub.Create();
sub.ApplyChanges();
monitoredItem1.Notification += (MonitoredItemNotificationEventHandler)((monitoredItem, args) =>
{
MonitoredItemNotification notificationValue = (MonitoredItemNotification)args.NotificationValue;
if (notificationValue == null)
{
return;
}
object obj1 = notificationValue.Value.WrappedValue.Value;
Action action1 = (Action)(() =>
{
sub.RemoveItems(sub.MonitoredItems);
sub.Delete(true);
this.m_session.RemoveSubscription(sub);
sub.Dispose();
});
Action <T, Action> action2 = callback;
if (action2 == null)
{
return;
}
T obj2 = (T)obj1;
Action action3 = action1;
action2(obj2, action3);
});
}
public static bool CreateMonitoredItem(NodeId nodeId, Session session, MonitoredItemNotificationEventHandler handler)
{
if (session != null)
{
// access the default subscription, add it to the session and only create it if successful
Subscription subscription = session.DefaultSubscription;
if (session.AddSubscription(subscription))
{
subscription.Create();
}
// add the new monitored item.
MonitoredItem monitoredItem = new MonitoredItem(subscription.DefaultItem);
if (monitoredItem != null)
{
// Set monitored item attributes
// StartNodeId = NodeId to be monitored
// AttributeId = which attribute of the node to monitor (in this case the value)
// MonitoringMode = When sampling is enabled, the Server samples the item.
// In addition, each sample is evaluated to determine if
// a Notification should be generated. If so, the
// Notification is queued. If reporting is enabled,
// the queue is made available to the Subscription for transfer
monitoredItem.StartNodeId = nodeId;
monitoredItem.AttributeId = Attributes.Value;
monitoredItem.DisplayName = nodeId.Identifier.ToString();
monitoredItem.MonitoringMode = MonitoringMode.Reporting;
monitoredItem.SamplingInterval = 0;
monitoredItem.QueueSize = 0;
monitoredItem.DiscardOldest = true;
monitoredItem.Notification += handler;
subscription.AddItem(monitoredItem);
subscription.ApplyChanges();
return(true);
}
else
{
Trace("Error: Could not create monitored item!");
}
}
else
{
Trace("Argument error: Session is null!");
}
return(false);
}
/// <summary>
/// Changes the area monitored by the control.
/// </summary>
public void ChangeArea(NodeId areaId, bool fetchRecent)
{
m_areaId = areaId;
EventsLV.Items.Clear();
if (fetchRecent)
{
ReadRecentHistory();
}
if (m_subscription != null)
{
MonitoredItem monitoredItem = new MonitoredItem(m_monitoredItem);
monitoredItem.StartNodeId = areaId;
m_subscription.AddItem(monitoredItem);
m_subscription.RemoveItem(m_monitoredItem);
m_monitoredItem = monitoredItem;
monitoredItem.Notification += new MonitoredItemNotificationEventHandler(MonitoredItem_Notification);
m_subscription.ApplyChanges();
}
}
public bool AddMonitoredItem(MonitoredItem monitoredItem, Subscription subscription)
{
try
{
subscription.AddItem(monitoredItem);
subscription.ApplyChanges();
return(true);
}
catch (Exception e)
{
Utils.Trace(Utils.TraceMasks.Error, $"{e.Message}");
}
return(false);
}
/// <summary>
/// Creates the subscription.
/// </summary>
private void CreateSubscription()
{
if (m_session == null)
{
return;
}
m_subscription = new Subscription();
m_subscription.Handle = this;
m_subscription.DisplayName = null;
m_subscription.PublishingInterval = 1000;
m_subscription.KeepAliveCount = 10;
m_subscription.LifetimeCount = 100;
m_subscription.MaxNotificationsPerPublish = 1000;
m_subscription.PublishingEnabled = true;
m_subscription.TimestampsToReturn = TimestampsToReturn.Both;
m_session.AddSubscription(m_subscription);
m_subscription.Create();
m_monitoredItem = new MonitoredItem();
m_monitoredItem.StartNodeId = m_nodeId;
m_monitoredItem.AttributeId = Attributes.Value;
m_monitoredItem.SamplingInterval = (int)SamplingIntervalNP.Value;
m_monitoredItem.QueueSize = 1000;
m_monitoredItem.DiscardOldest = true;
// specify aggregate filter.
if (AggregateCB.SelectedItem != null)
{
AggregateFilter filter = new AggregateFilter();
if (StartTimeCK.Checked)
{
filter.StartTime = StartTimeDP.Value.ToUniversalTime();
}
else
{
filter.StartTime = DateTime.UtcNow;
}
filter.ProcessingInterval = (double)ResampleIntervalNP.Value;
filter.AggregateType = ((AvailableAggregate)AggregateCB.SelectedItem).NodeId;
if (filter.AggregateType != null)
{
m_monitoredItem.Filter = filter;
}
}
m_monitoredItem.Notification += new MonitoredItemNotificationEventHandler(MonitoredItem_Notification);
m_subscription.AddItem(m_monitoredItem);
m_subscription.ApplyChanges();
SubscriptionStateChanged();
}
public void CreateMonitoredItem(
Session session, Subscription subscription, NodeId nodeId, MonitoringMode mode)
{
if (subscription == null)
{
subscription = session.DefaultSubscription;
if (session.AddSubscription(subscription))
subscription.Create();
}
else
{
session.AddSubscription(subscription);
}
// add the new monitored item.
MonitoredItem monitoredItem = new MonitoredItem(subscription.DefaultItem);
monitoredItem.StartNodeId = nodeId;
monitoredItem.AttributeId = Attributes.Value;
monitoredItem.DisplayName = nodeId.Identifier.ToString();
monitoredItem.MonitoringMode = mode;
monitoredItem.SamplingInterval = mode == MonitoringMode.Sampling ? 1000 : 0;
monitoredItem.QueueSize = 0;
monitoredItem.DiscardOldest = true;
monitoredItem.Notification += MonitoredItem_Notification;
subscription.AddItem(monitoredItem);
subscription.ApplyChanges();
}
/// <summary>
/// Creates the subscription.
/// </summary>
private void CreateSubscription()
{
if (m_session == null)
{
return;
}
m_subscription = new Subscription();
m_subscription.Handle = this;
m_subscription.DisplayName = null;
m_subscription.PublishingInterval = 500;
m_subscription.KeepAliveCount = 10;
m_subscription.LifetimeCount = 100;
m_subscription.MaxNotificationsPerPublish = 1000;
m_subscription.PublishingEnabled = true;
m_subscription.TimestampsToReturn = TimestampsToReturn.Both;
m_session.AddSubscription(m_subscription);
m_subscription.Create();
MonitoredItem monitoredItem = new MonitoredItem();
monitoredItem.StartNodeId = m_nodeId;
monitoredItem.AttributeId = Attributes.Value;
monitoredItem.SamplingInterval = 1000;
monitoredItem.QueueSize = 1000;
monitoredItem.DiscardOldest = true;
monitoredItem.Notification += new MonitoredItemNotificationEventHandler(MonitoredItem_Notification);
m_subscription.AddItem(monitoredItem);
m_subscription.ApplyChanges();
// verify that the item was created successfully.
if (ServiceResult.IsBad(monitoredItem.Status.Error))
{
throw new ServiceResultException(monitoredItem.Status.Error);
}
}
/// <summary>
/// Creates the subscription.
/// </summary>
private void CreateSubscription()
{
// create the default subscription.
m_subscription = new Subscription();
m_subscription.DisplayName = null;
m_subscription.PublishingInterval = 1000;
m_subscription.KeepAliveCount = 10;
m_subscription.LifetimeCount = 100;
m_subscription.MaxNotificationsPerPublish = 1000;
m_subscription.PublishingEnabled = true;
m_subscription.TimestampsToReturn = TimestampsToReturn.Both;
m_session.AddSubscription(m_subscription);
m_subscription.Create();
// a table used to track event types.
m_eventTypeMappings = new Dictionary<NodeId, NodeId>();
NodeId knownEventId = ExpandedNodeId.ToNodeId(ObjectTypeIds.SystemCycleStatusEventType, m_session.NamespaceUris);
m_knownEventTypes = new Dictionary<NodeId, Type>();
m_knownEventTypes.Add(knownEventId, typeof(SystemCycleStatusEventState));
TypeDeclaration type = new TypeDeclaration();
type.NodeId = ExpandedNodeId.ToNodeId(ObjectTypeIds.SystemCycleStatusEventType, m_session.NamespaceUris);
type.Declarations = ClientUtils.CollectInstanceDeclarationsForType(m_session, type.NodeId);
// the filter to use.
m_filter = new FilterDeclaration(type, null);
// declate callback.
m_MonitoredItem_Notification = new MonitoredItemNotificationEventHandler(MonitoredItem_Notification);
// create a monitored item based on the current filter settings.
m_monitoredItem = new MonitoredItem();
m_monitoredItem.StartNodeId = Opc.Ua.ObjectIds.Server;
m_monitoredItem.AttributeId = Attributes.EventNotifier;
m_monitoredItem.SamplingInterval = 0;
m_monitoredItem.QueueSize = 1000;
m_monitoredItem.DiscardOldest = true;
m_monitoredItem.Filter = m_filter.GetFilter();
// set up callback for notifications.
m_monitoredItem.Notification += m_MonitoredItem_Notification;
m_subscription.AddItem(m_monitoredItem);
m_subscription.ApplyChanges();
}
/// <summary>
/// Updates the application after connecting to or disconnecting from the server.
/// </summary>
private void Server_ConnectComplete(object sender, EventArgs e)
{
try
{
m_session = ConnectServerCTRL.Session;
if (m_session == null)
{
StartBTN.Enabled = false;
return;
}
// set a suitable initial state.
if (m_session != null && !m_connectedOnce)
{
m_connectedOnce = true;
}
// this client has built-in knowledge of the information model used by the server.
NamespaceTable wellKnownNamespaceUris = new NamespaceTable();
wellKnownNamespaceUris.Append(Namespaces.Methods);
string[] browsePaths = new string[]
{
"1:My Process/1:State",
"1:My Process",
"1:My Process/1:Start"
};
List<NodeId> nodes = ClientUtils.TranslateBrowsePaths(
m_session,
ObjectIds.ObjectsFolder,
wellKnownNamespaceUris,
browsePaths);
// subscribe to the state if available.
if (nodes.Count > 0 && !NodeId.IsNull(nodes[0]))
{
m_subscription = new Subscription();
m_subscription.PublishingEnabled = true;
m_subscription.PublishingInterval = 1000;
m_subscription.Priority = 1;
m_subscription.KeepAliveCount = 10;
m_subscription.LifetimeCount = 20;
m_subscription.MaxNotificationsPerPublish = 1000;
m_session.AddSubscription(m_subscription);
m_subscription.Create();
MonitoredItem monitoredItem = new MonitoredItem();
monitoredItem.StartNodeId = nodes[0];
monitoredItem.AttributeId = Attributes.Value;
monitoredItem.Notification += new MonitoredItemNotificationEventHandler(MonitoredItem_Notification);
m_subscription.AddItem(monitoredItem);
m_subscription.ApplyChanges();
}
// save the object/method
if (nodes.Count > 2)
{
m_objectNode = nodes[1];
m_methodNode = nodes[2];
}
InitialStateTB.Text = "1";
FinalStateTB.Text = "100";
StartBTN.Enabled = true;
}
catch (Exception exception)
{
ClientUtils.HandleException(this.Text, exception);
}
}
/// <summary>
/// Modifies the sampling interval used.
/// </summary>
private bool ModifySamplingInterval(Subscription subscription)
{
if (m_errorEvent.WaitOne(500, false))
{
return false;
}
lock (m_variables)
{
for (int ii = 0; ii < m_variables.Count; ii++)
{
foreach (IList<Notification> notification in m_variables[ii].Notifications.Values)
{
notification.Clear();
}
}
foreach (MonitoredItem monitoredItem in subscription.MonitoredItems)
{
monitoredItem.SamplingInterval = (int)(monitoredItem.Status.SamplingInterval*2);
}
}
subscription.ApplyChanges();
// check results.
bool success = true;
foreach (MonitoredItem monitoredItem in subscription.MonitoredItems)
{
if (ServiceResult.IsBad(monitoredItem.Status.Error))
{
TestVariable variable = monitoredItem.Handle as TestVariable;
Log(
"Could not modify MonitoredItem {0}. NodeId={1}, SamplingInterval={2}",
variable.Variable,
variable.Variable.NodeId,
monitoredItem.SamplingInterval);
success = false;
}
}
if (!success)
{
return false;
}
if (m_errorEvent.WaitOne(500, false))
{
return false;
}
return true;
}
/// <summary>
/// Creates the subscription.
/// </summary>
private void CreateSubscription()
{
if (m_subscription != null)
{
m_subscription.Dispose();
m_subscription = null;
}
// get the current session.
Session session = m_server.Session;
if (session == null)
{
return;
}
// create the subscription.
m_subscription = new Subscription();
m_subscription.PublishingEnabled = Active;
m_subscription.PublishingInterval = (int)Math.Max(BufferTime, 1000);
m_subscription.KeepAliveCount = (uint)Math.Max(Math.Ceiling(((double)KeepAlive)/m_subscription.PublishingInterval), 10);
m_subscription.LifetimeCount = m_subscription.KeepAliveCount*3;
m_subscription.MaxNotificationsPerPublish = MaxSize;
m_subscription.TimestampsToReturn = TimestampsToReturn.Neither;
m_subscription.Priority = 0;
m_subscription.FastEventCallback = OnEventNotification;
m_subscription.DisableMonitoredItemCache = true;
session.AddSubscription(m_subscription);
m_subscription.Create();
// update the monitored items.
EventFilter filter = m_filter.GetFilter();
MonitoringMode monitoringMode = (Active)?MonitoringMode.Reporting:MonitoringMode.Disabled;
foreach (MonitoredItem monitoredItem in m_notifiers.Values)
{
monitoredItem.Filter = filter;
monitoredItem.MonitoringMode = monitoringMode;
m_subscription.AddItem(monitoredItem);
}
m_subscription.ApplyChanges();
}
/// <summary>
/// Adds a item to a subscription.
/// </summary>
private void Subscribe(Subscription subscription, ReferenceDescription reference)
{
MonitoredItem monitoredItem = new MonitoredItem(subscription.DefaultItem);
monitoredItem.DisplayName = subscription.Session.NodeCache.GetDisplayText(reference);
monitoredItem.StartNodeId = (NodeId)reference.NodeId;
monitoredItem.NodeClass = (NodeClass)reference.NodeClass;
monitoredItem.AttributeId = Attributes.Value;
monitoredItem.SamplingInterval = 0;
monitoredItem.QueueSize = 1;
// add condition fields to any event filter.
EventFilter filter = monitoredItem.Filter as EventFilter;
if (filter != null)
{
monitoredItem.AttributeId = Attributes.EventNotifier;
monitoredItem.QueueSize = 0;
}
subscription.AddItem(monitoredItem);
subscription.ApplyChanges();
}
private void BoilerCB_SelectedIndexChanged(object sender, EventArgs e)
{
try
{
if (m_session == null)
{
return;
}
if (m_subscription != null)
{
m_session.RemoveSubscription(m_subscription);
m_subscription = null;
}
ReferenceDescription boiler = (ReferenceDescription)BoilerCB.SelectedItem;
if (boiler == null)
{
return;
}
m_subscription = new Subscription();
m_subscription.PublishingEnabled = true;
m_subscription.PublishingInterval = 1000;
m_subscription.Priority = 1;
m_subscription.KeepAliveCount = 10;
m_subscription.LifetimeCount = 20;
m_subscription.MaxNotificationsPerPublish = 1000;
m_session.AddSubscription(m_subscription);
m_subscription.Create();
NamespaceTable wellKnownNamespaceUris = new NamespaceTable();
wellKnownNamespaceUris.Append(Namespaces.Boiler);
string[] browsePaths = new string[]
{
"1:PipeX001/1:FTX001/1:Output",
"1:DrumX001/1:LIX001/1:Output",
"1:PipeX002/1:FTX002/1:Output",
"1:LCX001/1:SetPoint",
};
List<NodeId> nodes = ClientUtils.TranslateBrowsePaths(
m_session,
(NodeId)boiler.NodeId,
wellKnownNamespaceUris,
browsePaths);
Control[] controls = new Control[]
{
InputPipeFlowTB,
DrumLevelTB,
OutputPipeFlowTB,
DrumLevelSetPointTB
};
for (int ii = 0; ii < nodes.Count; ii++)
{
controls[ii].Text = "---";
if (nodes[ii] != null)
{
MonitoredItem monitoredItem = new MonitoredItem();
monitoredItem.StartNodeId = nodes[ii];
monitoredItem.AttributeId = Attributes.Value;
monitoredItem.Handle = controls[ii];
monitoredItem.Notification += new MonitoredItemNotificationEventHandler(MonitoredItem_Notification);
m_subscription.AddItem(monitoredItem);
}
}
m_subscription.ApplyChanges();
}
catch (Exception exception)
{
ClientUtils.HandleException(this.Text, exception);
}
}
/// <summary>
/// Modifies the deadband.
/// </summary>
private bool ModifyDeadband(Subscription subscription)
{
if (m_errorEvent.WaitOne(500, false))
{
return false;
}
lock (m_variables)
{
for (int ii = 0; ii < m_variables.Count; ii++)
{
foreach (IList<Notification> notification in m_variables[ii].Notifications.Values)
{
notification.Clear();
}
}
foreach (MonitoredItem monitoredItem in subscription.MonitoredItems)
{
DataChangeFilter filter =(DataChangeFilter)monitoredItem.Filter;
filter.DeadbandValue /= 2;
monitoredItem.Filter = filter;
}
}
subscription.ApplyChanges();
// check results.
bool success = true;
foreach (MonitoredItem monitoredItem in subscription.MonitoredItems)
{
if (!CheckDeadbandError(monitoredItem))
{
success = false;
break;
}
}
if (!success)
{
return false;
}
if (m_errorEvent.WaitOne(500, false))
{
return false;
}
return true;
}
/// <summary>
/// Reads an verifies all of the nodes.
/// </summary>
private bool DoSamplingIntervalTest(bool modifySamplingInterval)
{
// follow tree from each starting node.
bool success = true;
// collection writeable variables that don't change during the test.
lock (m_variables)
{
m_lastWriteTime = DateTime.MinValue;
m_writeDelayed = false;
m_writeTimerCounter++;
m_variables.Clear();
// collection writeable variables that don't change during the test.
for (int ii = 0; ii < WriteableVariables.Count; ii++)
{
AddVariableToTest(WriteableVariables[ii], m_variables, false);
}
// reduce list based on coverage.
List<TestVariable> variables = new List<TestVariable>();
int counter = 0;
foreach (TestVariable variable in m_variables)
{
if (!CheckCoverage(ref counter))
{
continue;
}
variables.Add(variable);
}
// check if there is anything to work with.
if (variables.Count == 0)
{
Log("WARNING: No writeable variables found.");
Log(WriteTest.g_WriteableVariableHelpText);
return true;
}
m_variables.Clear();
m_variables.AddRange(variables);
ReadEURanges(m_variables);
InitialWrite();
// check if there is anything to work with.
if (m_variables.Count == 0)
{
Log("WARNING: No writeable variables found.");
Log(WriteTest.g_WriteableVariableHelpText);
return true;
}
Log("Starting SamplingIntervalTest for {0} Variables ({1}% Coverage, Start={2})", m_variables.Count, Configuration.Coverage, m_variables[0].Variable);
m_stopped = 0;
m_writeInterval = 1000;
m_useDeadbandValues = false;
m_errorEvent.Reset();
}
Subscription subscription = new Subscription();
subscription.PublishingInterval = 500;
subscription.PublishingEnabled = true;
subscription.Priority = 0;
subscription.KeepAliveCount = 1000;
subscription.LifetimeCount = 1000;
subscription.MaxNotificationsPerPublish = 100;
Session.AddSubscription(subscription);
subscription.Create();
m_publishingTime = subscription.CurrentPublishingInterval;
m_writerTimer = new Timer(DoWrite, m_writeTimerCounter, 0, m_writeInterval);
if (m_errorEvent.WaitOne(1000, false))
{
success = false;
}
// create monitored items.
if (success)
{
lock (m_variables)
{
m_monitoredItems = new Dictionary<uint,TestVariable>();
for (int ii = 0; ii < m_variables.Count; ii++)
{
// servers that sample data values may not pick up boolean value changes.
if (m_variables[ii].DataType == BuiltInType.Boolean)
{
continue;
}
VariableNode variable = m_variables[ii].Variable;
for (int jj = 2000; jj <= 10000; jj += 1000)
{
MonitoredItem monitoredItem = new MonitoredItem();
monitoredItem.StartNodeId = variable.NodeId;
monitoredItem.AttributeId = Attributes.Value;
monitoredItem.RelativePath = null;
monitoredItem.IndexRange = null;
monitoredItem.SamplingInterval = jj;
monitoredItem.QueueSize = 0;
monitoredItem.DiscardOldest = true;
monitoredItem.Filter = null;
monitoredItem.MonitoringMode = MonitoringMode.Reporting;
monitoredItem.Handle = m_variables[ii];
m_variables[ii].Notifications[monitoredItem.ClientHandle] = new List<Notification>();
m_monitoredItems[monitoredItem.ClientHandle] = m_variables[ii];
subscription.AddItem(monitoredItem);
}
}
}
subscription.ApplyChanges();
// check results.
foreach (MonitoredItem monitoredItem in subscription.MonitoredItems)
{
if (ServiceResult.IsBad(monitoredItem.Status.Error))
{
TestVariable variable = monitoredItem.Handle as TestVariable;
Log(
"Could not create MonitoredItem {0}. NodeId={1}, SamplingInterval={2}",
variable.Variable,
variable.Variable.NodeId,
monitoredItem.SamplingInterval);
success = false;
}
}
}
// modify sampling interval.
if (success)
{
if (modifySamplingInterval)
{
if (!ModifySamplingInterval(subscription))
{
success = false;
}
}
}
// wait for first data change.
if (m_errorEvent.WaitOne(1000, false))
{
success = false;
}
// wait while values are written.
lock (m_variables)
{
m_writeCount = 0;
m_startTime = DateTime.UtcNow;
}
if (success)
{
double increment = MaxProgress/10;
double position = 0;
for (int ii = 0; ii < 20; ii++)
{
if (m_errorEvent.WaitOne(1000, false))
{
success = false;
break;
}
position += increment;
ReportProgress(position);
}
}
int writeCount = 0;
lock (m_variables)
{
m_stopped = 1;
m_endTime = DateTime.UtcNow;
writeCount = m_writeCount;
m_writerTimer.Dispose();
m_writerTimer = null;
}
Session.RemoveSubscription(subscription);
// wait for last data change.
if (m_errorEvent.WaitOne(1000, false))
{
success = false;
}
// verify results.
if (success)
{
double duration = CalculateInterval(m_startTime, m_endTime);
double expectedWrites = Math.Truncate(duration/m_writeInterval);
if (Math.Abs(expectedWrites - writeCount) > 1)
{
Log(
"WARNING: unexpected number of writes for monitored items: Expected={0}, Actual={1}",
expectedWrites,
writeCount,
duration);
}
lock (m_variables)
{
int errorCount = 0;
foreach (MonitoredItem monitoredItem in subscription.MonitoredItems)
{
if (errorCount > 10)
{
break;
}
TestVariable variable = (TestVariable)monitoredItem.Handle;
if (variable.WriteError)
{
continue;
}
IList<Notification> notifications = variable.Notifications[monitoredItem.ClientHandle];
// count the number of notifications.
int first = -1;
for (int ii = 0; ii < notifications.Count; ii++)
{
if (notifications[ii].Timestamp < m_startTime)
{
continue;
}
first = ii;
}
if (first == -1)
{
Log(
"No notifications for monitored item: {0}, NodeId={1}, SamplingInterval={2}",
variable.Variable,
variable.Variable.NodeId,
monitoredItem.SamplingInterval);
success = false;
errorCount++;
continue;
}
int actualNotifications = notifications.Count - first;
double range = (notifications[notifications.Count-1].Timestamp - notifications[first].Timestamp).TotalMilliseconds;
// check that at least one notification was recieved.
double expectedNotifications = Math.Truncate(range/monitoredItem.SamplingInterval);
if (Math.Abs(expectedNotifications - actualNotifications) > 1)
{
Log(
"Unexpected number of notifications for monitored item: {0}, NodeId={1}, SamplingInterval={2}, Expected={3}, Actual={4}",
variable.Variable,
variable.Variable.NodeId,
monitoredItem.SamplingInterval,
expectedNotifications,
actualNotifications);
StringBuilder buffer = new StringBuilder();
buffer.Append("Notifications:\r\n");
for (int ii = 0; ii < notifications.Count; ii++)
{
buffer.AppendFormat(
"[{0}]\t{1:HH:mm:ss.fff}\t{2}\t{3:HH:mm:ss.fff}\r\n",
notifications[ii].SequenceNumber,
notifications[ii].Timestamp,
notifications[ii].Value.WrappedValue,
notifications[ii].Value.SourceTimestamp);
}
buffer.Append("Values:\r\n");
for (int ii = 0; ii < variable.Values.Count; ii++)
{
buffer.AppendFormat(
"[{0}]\t{1}\t{2:HH:mm:ss.fff}\r\n",
ii,
variable.Values[ii].WrappedValue,
variable.Timestamps[ii]);
}
Log(buffer.ToString());
success = false;
errorCount++;
continue;
}
// check timing.
if (!CheckNotificationTiming(monitoredItem, variable, notifications))
{
success = false;
errorCount++;
continue;
}
}
}
}
lock (m_variables)
{
Log("Completed SamplingIntervalTest for {0} Nodes", m_variables.Count);
}
return success;
}
/// <summary>
/// Connects to a server.
/// </summary>
private void Server_ConnectMI_Click(object sender, EventArgs e)
{
try
{
// disconnect any existing session.
Server_DisconnectMI_Click(sender, e);
InitialStateTB.Text = "1";
FinalStateTB.Text = "100";
// create the session.
EndpointDescription endpointDescription = SelectEndpoint();
EndpointConfiguration endpointConfiguration = EndpointConfiguration.Create(m_configuration);
ConfiguredEndpoint endpoint = new ConfiguredEndpoint(null, endpointDescription, endpointConfiguration);
m_session = Session.Create(
m_configuration,
endpoint,
true,
m_configuration.ApplicationName,
60000,
null,
null);
// set up keep alive callback.
m_session.KeepAliveInterval = 2000;
m_session.KeepAlive += new KeepAliveEventHandler(Session_KeepAlive);
// this client has built-in knowledge of the information model used by the server.
NamespaceTable wellKnownNamespaceUris = new NamespaceTable();
wellKnownNamespaceUris.Append(Namespaces.Methods);
string[] browsePaths = new string[]
{
"1:My Process/1:State",
"1:My Process",
"1:My Process/1:Start"
};
List<NodeId> nodes = FormUtils.TranslateBrowsePaths(
m_session,
ObjectIds.ObjectsFolder,
wellKnownNamespaceUris,
browsePaths);
// subscribe to the state if available.
if (nodes.Count > 0 && !NodeId.IsNull(nodes[0]))
{
m_subscription = new Subscription();
m_subscription.PublishingEnabled = true;
m_subscription.PublishingInterval = 1000;
m_subscription.Priority = 1;
m_subscription.KeepAliveCount = 10;
m_subscription.LifetimeCount = 20;
m_subscription.MaxNotificationsPerPublish = 1000;
m_session.AddSubscription(m_subscription);
m_subscription.Create();
MonitoredItem monitoredItem = new MonitoredItem();
monitoredItem.StartNodeId = nodes[0];
monitoredItem.AttributeId = Attributes.Value;
monitoredItem.Notification += new MonitoredItemNotificationEventHandler(MonitoredItem_Notification);
m_subscription.AddItem(monitoredItem);
m_subscription.ApplyChanges();
}
// save the object/method
if (nodes.Count > 2)
{
m_objectNode = nodes[1];
m_methodNode = nodes[2];
}
ConnectedLB.Text = "Connected";
ServerUrlLB.Text = endpointDescription.EndpointUrl;
LastKeepAliveTimeLB.Text = "---";
}
catch (Exception exception)
{
MessageBox.Show(exception.Message, this.Text, MessageBoxButtons.OK, MessageBoxIcon.Error);
}
}
/// <summary>
/// Creates the subscription.
/// </summary>
private void CreateSubscription()
{
m_subscription = new Subscription();
m_subscription.Handle = this;
m_subscription.DisplayName = null;
m_subscription.PublishingInterval = 1000;
m_subscription.KeepAliveCount = 10;
m_subscription.LifetimeCount = 100;
m_subscription.MaxNotificationsPerPublish = 1000;
m_subscription.PublishingEnabled = true;
m_subscription.TimestampsToReturn = TimestampsToReturn.Both;
m_session.AddSubscription(m_subscription);
m_subscription.Create();
m_monitoredItem = new MonitoredItem();
m_monitoredItem.StartNodeId = m_areaId;
m_monitoredItem.AttributeId = Attributes.EventNotifier;
m_monitoredItem.SamplingInterval = 0;
m_monitoredItem.QueueSize = 1000;
m_monitoredItem.DiscardOldest = true;
ChangeFilter(m_filter, false);
m_monitoredItem.Notification += new MonitoredItemNotificationEventHandler(MonitoredItem_Notification);
m_subscription.AddItem(m_monitoredItem);
m_subscription.ApplyChanges();
}
/// <summary>
/// Initializes a new instance of the <see cref="AuditEventForm"/> class.
/// </summary>
/// <param name="session">The session.</param>
/// <param name="subscription">The subscription.</param>
public AuditEventForm(Session session, Subscription subscription)
{
InitializeComponent();
m_session = session;
m_subscription = subscription;
// a table used to track event types.
m_eventTypeMappings = new Dictionary<NodeId, NodeId>();
// the filter to use.
m_filter = new FilterDefinition();
m_filter.AreaId = ObjectIds.Server;
m_filter.Severity = EventSeverity.Min;
m_filter.IgnoreSuppressedOrShelved = true;
m_filter.EventTypes = new NodeId[] { ObjectTypeIds.AuditUpdateMethodEventType };
// find the fields of interest.
m_filter.SelectClauses = m_filter.ConstructSelectClauses(m_session, ObjectTypeIds.AuditUpdateMethodEventType);
// declate callback.
m_MonitoredItem_Notification = new MonitoredItemNotificationEventHandler(MonitoredItem_Notification);
// create a monitored item based on the current filter settings.
m_monitoredItem = m_filter.CreateMonitoredItem(m_session);
// set up callback for notifications.
m_monitoredItem.Notification += m_MonitoredItem_Notification;
m_subscription.AddItem(m_monitoredItem);
m_subscription.ApplyChanges();
}
/// <summary>
/// Updates the application after connecting to or disconnecting from the server.
/// </summary>
private void Server_ConnectComplete(object sender, EventArgs e)
{
try
{
m_session = ConnectServerCTRL.Session;
// check for disconnect.
if (m_session == null)
{
if (m_auditEventForm != null)
{
m_auditEventForm.Close();
m_auditEventForm = null;
}
return;
}
// set a suitable initial state.
if (m_session != null && !m_connectedOnce)
{
m_connectedOnce = true;
}
// create the default subscription.
m_subscription = new Subscription();
m_subscription.DisplayName = null;
m_subscription.PublishingInterval = 1000;
m_subscription.KeepAliveCount = 10;
m_subscription.LifetimeCount = 100;
m_subscription.MaxNotificationsPerPublish = 1000;
m_subscription.PublishingEnabled = true;
m_subscription.TimestampsToReturn = TimestampsToReturn.Both;
m_session.AddSubscription(m_subscription);
m_subscription.Create();
// must specify the fields that the form is interested in.
m_filter.SelectClauses = m_filter.ConstructSelectClauses(
m_session,
NodeId.Parse("ns=2;s=4:2"),
NodeId.Parse("ns=2;s=4:1"),
ObjectTypeIds.DialogConditionType,
ObjectTypeIds.ExclusiveLimitAlarmType,
ObjectTypeIds.NonExclusiveLimitAlarmType);
// create a monitored item based on the current filter settings.
m_monitoredItem = m_filter.CreateMonitoredItem(m_session);
// set up callback for notifications.
m_monitoredItem.Notification += m_MonitoredItem_Notification;
m_subscription.AddItem(m_monitoredItem);
m_subscription.ApplyChanges();
// send an initial refresh.
Conditions_RefreshMI_Click(sender, e);
ConditionsMI.Enabled = true;
ViewMI.Enabled = true;
}
catch (Exception exception)
{
ClientUtils.HandleException(this.Text, exception);
}
}
/// <summary>
/// Reads an verifies all of the nodes.
/// </summary>
private bool DoDeadbandTest(bool modifyDeadband)
{
// follow tree from each starting node.
bool success = true;
// collection writeable variables that don't change during the test.
lock (m_variables)
{
m_lastWriteTime = DateTime.MinValue;
m_writeDelayed = false;
m_writeTimerCounter++;
m_variables.Clear();
// collection writeable variables that don't change during the test.
for (int ii = 0; ii < WriteableVariables.Count; ii++)
{
AddVariableToTest(WriteableVariables[ii], m_variables, true);
}
// reduce list based on coverage.
List<TestVariable> variables = new List<TestVariable>();
int counter = 0;
foreach (TestVariable variable in m_variables)
{
if (!CheckCoverage(ref counter))
{
continue;
}
variables.Add(variable);
}
// check if there is anything to work with.
if (variables.Count == 0)
{
Log("WARNING: No writeable variables found.");
Log(WriteTest.g_WriteableVariableHelpText);
return true;
}
m_variables.Clear();
m_variables.AddRange(variables);
ReadEURanges(m_variables);
InitialWrite();
// check if there is anything to work with.
if (m_variables.Count == 0)
{
Log("WARNING: No writeable variables found.");
Log(WriteTest.g_WriteableVariableHelpText);
return true;
}
Log("Starting DeadbandTest for {0} Variables ({1}% Coverage, Start={2})", m_variables.Count, Configuration.Coverage, m_variables[0].Variable);
m_stopped = 0;
m_writeInterval = 1000;
m_deadbandCounter = 0;
m_useDeadbandValues = true;
m_errorEvent.Reset();
}
Subscription subscription = new Subscription();
subscription.PublishingInterval = 1000;
subscription.PublishingEnabled = true;
subscription.Priority = 0;
subscription.KeepAliveCount = 100;
subscription.LifetimeCount = 100;
subscription.MaxNotificationsPerPublish = 100;
Session.AddSubscription(subscription);
subscription.Create();
m_publishingTime = subscription.CurrentPublishingInterval;
m_writerTimer = new Timer(DoWrite, m_writeTimerCounter, 0, m_writeInterval);
if (m_errorEvent.WaitOne(1000, false))
{
success = false;
}
DataChangeFilter[] filters = new DataChangeFilter[5];
if (success)
{
DataChangeFilter filter = new DataChangeFilter();
filter.DeadbandType = (uint)DeadbandType.Absolute;
filter.DeadbandValue = 2;
filter.Trigger = DataChangeTrigger.StatusValue;
filters[0] = filter;
filter = new DataChangeFilter();
filter.DeadbandType = (uint)DeadbandType.Absolute;
filter.DeadbandValue = 5;
filter.Trigger = DataChangeTrigger.StatusValue;
filters[1] = filter;
filter = new DataChangeFilter();
filter.DeadbandType = (uint)DeadbandType.Absolute;
filter.DeadbandValue = 10;
filter.Trigger = DataChangeTrigger.StatusValue;
filters[2] = filter;
filter = new DataChangeFilter();
filter.DeadbandType = (uint)DeadbandType.Percent;
filter.DeadbandValue = 1;
filter.Trigger = DataChangeTrigger.StatusValue;
filters[3] = filter;
filter = new DataChangeFilter();
filter.DeadbandType = (uint)DeadbandType.Percent;
filter.DeadbandValue = 10;
filter.Trigger = DataChangeTrigger.StatusValue;
filters[4] = filter;
lock (m_variables)
{
m_monitoredItems = new Dictionary<uint,TestVariable>();
for (int ii = 0; ii < m_variables.Count; ii++)
{
VariableNode variable = m_variables[ii].Variable;
for (int jj = 0; jj < filters.Length; jj++)
{
if (m_variables[ii].EURange == null && filters[jj].DeadbandType == (uint)DeadbandType.Percent)
{
continue;
}
MonitoredItem monitoredItem = new MonitoredItem();
monitoredItem.StartNodeId = variable.NodeId;
monitoredItem.AttributeId = Attributes.Value;
monitoredItem.RelativePath = null;
monitoredItem.IndexRange = null;
monitoredItem.SamplingInterval = 100;
monitoredItem.QueueSize = 0;
monitoredItem.DiscardOldest = true;
monitoredItem.Filter = filters[jj];
monitoredItem.MonitoringMode = MonitoringMode.Reporting;
monitoredItem.Handle = m_variables[ii];
m_variables[ii].Notifications[monitoredItem.ClientHandle] = new List<Notification>();
m_monitoredItems[monitoredItem.ClientHandle] = m_variables[ii];
subscription.AddItem(monitoredItem);
}
}
}
subscription.ApplyChanges();
// check results.
foreach (MonitoredItem monitoredItem in subscription.MonitoredItems)
{
if (!CheckDeadbandError(monitoredItem))
{
success = false;
break;
}
}
}
// modify sampling interval.
if (success)
{
if (modifyDeadband)
{
if (!ModifyDeadband(subscription))
{
success = false;
}
}
}
// wait for first data change.
if (m_errorEvent.WaitOne(1000, false))
{
success = false;
}
lock (m_variables)
{
m_writeCount = 0;
m_startTime = DateTime.UtcNow;
}
if (success)
{
double increment = MaxProgress/10;
double position = 0;
for (int ii = 0; ii < 20; ii++)
{
if (m_errorEvent.WaitOne(1000, false))
{
success = false;
break;
}
position += increment;
ReportProgress(position);
}
}
int writeCount = 0;
lock (m_variables)
{
m_stopped = 1;
m_endTime = DateTime.UtcNow;
writeCount = m_writeCount;
m_writerTimer.Dispose();
m_writerTimer = null;
}
Session.RemoveSubscription(subscription);
// wait for last data change.
if (m_errorEvent.WaitOne(1000, false))
{
success = false;
}
if (success)
{
double duration = CalculateInterval(m_startTime, m_endTime);
double expectedWrites = Math.Truncate(duration/m_writeInterval);
if (Math.Abs(expectedWrites - writeCount) > 1)
{
Log(
"WARNING: unexpected number of writes for monitored items: Expected={0}, Actual={1}",
expectedWrites,
writeCount);
}
lock (m_variables)
{
int errorCount = 0;
foreach (MonitoredItem monitoredItem in subscription.MonitoredItems)
{
if (ServiceResult.IsBad(monitoredItem.Status.Error))
{
continue;
}
DataChangeFilter filter = monitoredItem.Status.Filter as DataChangeFilter;
if (filter == null)
{
continue;
}
if (errorCount > 10)
{
break;
}
TestVariable variable = (TestVariable)monitoredItem.Handle;
double writesPerPublish = m_publishingTime/m_writeInterval;
double totalPublishes = duration/m_publishingTime;
Range euRange = variable.EURange;
if (euRange != null)
{
if (euRange.High - euRange.Low <= 0)
{
Log(
"Invalid EU range for variable {0}. NodeId={1}, EURange={2}, EURange={3}",
variable.Variable,
variable.Variable.NodeId,
variable.EURangeNode.NodeId,
euRange);
success = false;
errorCount++;
continue;
}
}
IList<Notification> notifications = variable.Notifications[monitoredItem.ClientHandle];
for (int ii = 0; ii < notifications.Count-1; ii++)
{
Notification before = notifications[ii];
Notification after = notifications[ii+1];
decimal difference = CalculateDifference(before.Value.Value, after.Value.Value);
if (filter.DeadbandType == (uint)DeadbandType.Absolute)
{
if (difference < (decimal)filter.DeadbandValue)
{
Log(
"Values did not exceed deadband {0}. NodeId={1}, DeadbandType={2}, Deadband={3}, Before={4}, After={5}",
variable.Variable,
variable.Variable.NodeId,
(DeadbandType)filter.DeadbandType,
filter.DeadbandValue,
before.Value.WrappedValue,
after.Value.WrappedValue);
success = false;
errorCount++;
continue;
}
}
if (filter.DeadbandType == (uint)DeadbandType.Percent)
{
double range = euRange.High - euRange.Low;
if (((double)difference)/range < filter.DeadbandValue/range)
{
Log(
"Values did not exceed deadband {0}. NodeId={1}, DeadbandType={2}, Deadband={3}, Before={4}, After={5}, EURange={6}",
variable.Variable,
variable.Variable.NodeId,
(DeadbandType)filter.DeadbandType,
filter.DeadbandValue,
before.Value.WrappedValue,
after.Value.WrappedValue,
euRange);
success = false;
errorCount++;
continue;
}
}
}
}
}
}
lock (m_variables)
{
Log("Completed DeadbandTest for {0} Nodes", m_variables.Count);
}
return success;
}
/// <summary>
/// Reads an verifies all of the nodes.
/// </summary>
private bool DoQueueSizeTest(bool modifyQueueSize)
{
// follow tree from each starting node.
bool success = true;
// collection writeable variables that don't change during the test.
lock (m_variables)
{
m_lastWriteTime = DateTime.MinValue;
m_writeDelayed = false;
m_writeTimerCounter++;
m_variables.Clear();
// collection writeable variables that don't change during the test.
for (int ii = 0; ii < WriteableVariables.Count; ii++)
{
AddVariableToTest(WriteableVariables[ii], m_variables, false);
}
// reduce list based on coverage.
List<TestVariable> variables = new List<TestVariable>();
int counter = 0;
foreach (TestVariable variable in m_variables)
{
if (!CheckCoverage(ref counter))
{
continue;
}
variables.Add(variable);
}
// check if there is anything to work with.
if (variables.Count == 0)
{
Log("WARNING: No writeable variables found.");
Log(WriteTest.g_WriteableVariableHelpText);
return true;
}
m_variables.Clear();
m_variables.AddRange(variables);
ReadEURanges(m_variables);
InitialWrite();
// check if there is anything to work with.
if (m_variables.Count == 0)
{
Log("WARNING: No writeable variables found.");
Log(WriteTest.g_WriteableVariableHelpText);
return true;
}
Log("Starting QueueSizeTest for {0} Variables ({1}% Coverage, Start={2})", m_variables.Count, Configuration.Coverage, m_variables[0].Variable);
m_stopped = 0;
m_writeInterval = 1000;
m_useDeadbandValues = false;
m_errorEvent.Reset();
}
// create subscription.
Subscription subscription = new Subscription();
subscription.PublishingInterval = 5000;
subscription.PublishingEnabled = true;
subscription.Priority = 0;
subscription.KeepAliveCount = 100;
subscription.LifetimeCount = 100;
subscription.MaxNotificationsPerPublish = 100;
Session.AddSubscription(subscription);
subscription.Create();
m_publishingTime = subscription.CurrentPublishingInterval;
m_writerTimer = new Timer(DoWrite, m_writeTimerCounter, 0, m_writeInterval);
if (m_errorEvent.WaitOne(1000, false))
{
success = false;
}
// create monitored items.
if (success)
{
lock (m_variables)
{
m_monitoredItems = new Dictionary<uint,TestVariable>();
for (int ii = 0; ii < m_variables.Count; ii++)
{
// servers that sample data values may not pick up boolean value changes.
if (m_variables[ii].DataType == BuiltInType.Boolean)
{
continue;
}
VariableNode variable = m_variables[ii].Variable;
for (int jj = 0; jj < 8; jj += 2)
{
MonitoredItem monitoredItem = new MonitoredItem();
monitoredItem.StartNodeId = variable.NodeId;
monitoredItem.AttributeId = Attributes.Value;
monitoredItem.RelativePath = null;
monitoredItem.IndexRange = null;
monitoredItem.SamplingInterval = 100;
monitoredItem.QueueSize = (uint)jj;
monitoredItem.DiscardOldest = true;
monitoredItem.Filter = null;
monitoredItem.MonitoringMode = MonitoringMode.Reporting;
monitoredItem.Handle = m_variables[ii];
m_variables[ii].Notifications[monitoredItem.ClientHandle] = new List<Notification>();
m_monitoredItems[monitoredItem.ClientHandle] = m_variables[ii];
subscription.AddItem(monitoredItem);
}
for (int jj = 2; jj < 8; jj += 2)
{
MonitoredItem monitoredItem = new MonitoredItem();
monitoredItem.StartNodeId = variable.NodeId;
monitoredItem.AttributeId = Attributes.Value;
monitoredItem.RelativePath = null;
monitoredItem.IndexRange = null;
monitoredItem.SamplingInterval = 100;
monitoredItem.QueueSize = (uint)jj;
monitoredItem.DiscardOldest = false;
monitoredItem.Filter = null;
monitoredItem.MonitoringMode = MonitoringMode.Reporting;
monitoredItem.Handle = m_variables[ii];
m_variables[ii].Notifications[monitoredItem.ClientHandle] = new List<Notification>();
m_monitoredItems[monitoredItem.ClientHandle] = m_variables[ii];
subscription.AddItem(monitoredItem);
}
}
}
subscription.ApplyChanges();
// check results.
foreach (MonitoredItem monitoredItem in subscription.MonitoredItems)
{
if (ServiceResult.IsBad(monitoredItem.Status.Error))
{
TestVariable variable = monitoredItem.Handle as TestVariable;
Log(
"Could not create MonitoredItem {0}. NodeId={1}, QueueSize={2}",
variable.Variable,
variable.Variable.NodeId,
monitoredItem.QueueSize);
success = false;
}
}
}
// modify sampling interval.
if (success)
{
if (modifyQueueSize)
{
if (!ModifyQueueSize(subscription))
{
success = false;
}
}
}
// wait for first data change.
if (m_errorEvent.WaitOne(1000, false))
{
success = false;
}
// wait to write some values.
lock (m_variables)
{
m_writeCount = 0;
m_startTime = DateTime.UtcNow;
}
if (success)
{
double increment = MaxProgress/10;
double position = 0;
for (int ii = 0; ii < 20; ii++)
{
if (m_errorEvent.WaitOne(1000, false))
{
success = false;
break;
}
position += increment;
ReportProgress(position);
}
}
int writeCount = 0;
lock (m_variables)
{
m_stopped = 1;
m_endTime = DateTime.UtcNow;
writeCount = m_writeCount;
m_writerTimer.Dispose();
m_writerTimer = null;
}
Session.RemoveSubscription(subscription);
// wait for last data change.
if (m_errorEvent.WaitOne(1000, false))
{
success = false;
}
// validate results.
if (success)
{
double duration = CalculateInterval(m_startTime, m_endTime);
double expectedWrites = Math.Truncate(duration/m_writeInterval);
if (Math.Abs(expectedWrites - writeCount) > 1)
{
Log(
"WARNING: unexpected number of writes for monitored items: Expected={0}, Actual={1}",
expectedWrites,
writeCount);
}
lock (m_variables)
{
int errorCount = 0;
foreach (MonitoredItem monitoredItem in subscription.MonitoredItems)
{
if (errorCount > 10)
{
break;
}
TestVariable variable = (TestVariable)monitoredItem.Handle;
// ignore values if syntax errors occurred.
if (variable.WriteError)
{
continue;
}
double samplingInterval = monitoredItem.Status.SamplingInterval;
uint queueSize = monitoredItem.Status.QueueSize;
bool discardOldest = monitoredItem.Status.DiscardOldest;
double writesPerPublish = m_publishingTime/m_writeInterval;
double totalPublishes = duration/m_publishingTime;
IList<Notification> notifications = variable.Notifications[monitoredItem.ClientHandle];
int actualNotifications = 0;
int beforeIndex = 0;
int afterIndex = 0;
for (int ii = 0; ii < notifications.Count-1; ii++)
{
actualNotifications++;
Notification before = notifications[ii];
Notification after = notifications[ii+1];
double gap = CalculateInterval(before.Value.SourceTimestamp, after.Value.SourceTimestamp);
// check gap.
if (gap > m_writeInterval + samplingInterval + m_maximumTimingError)
{
bool unexpectedGap = true;
if (queueSize <= 1 || after.Value.StatusCode.Overflow || before.Value.StatusCode.Overflow)
{
unexpectedGap = false;
}
if (unexpectedGap)
{
Log(
"Too much time between consecutive samples: {0}, NodeId={1}, QueueSize={2}, DiscardOldest={3}, SampleIndex={4}, Gap={5}",
variable.Variable,
variable.Variable.NodeId,
monitoredItem.Status.QueueSize,
monitoredItem.Status.DiscardOldest,
ii,
gap);
success = false;
errorCount++;
continue;
}
}
// find the value that matches the before value.
beforeIndex = -1;
for (int jj = 0; jj < variable.Values.Count; jj++)
{
if (m_comparer.CompareVariant(variable.Values[jj].WrappedValue, before.Value.WrappedValue))
{
beforeIndex = jj;
break;
}
}
// find the value that matches the after value.
afterIndex = -1;
for (int jj = beforeIndex+1; jj < variable.Values.Count; jj++)
{
if (m_comparer.CompareVariant(variable.Values[jj].WrappedValue, after.Value.WrappedValue))
{
afterIndex = jj;
break;
}
}
// the final write may not have returned.
if (variable.Timestamps.Count > 0)
{
if (variable.Timestamps[variable.Timestamps.Count-1] < after.Value.SourceTimestamp)
{
continue;
}
}
if (beforeIndex < 0 || afterIndex < 0 || afterIndex <= beforeIndex)
{
Log(
"Could not find matching value for sample: {0}, NodeId={1}, QueueSize={2}, DiscardOldest={3}, BeforeIndex={4}, AfterIndex={5}",
variable.Variable,
variable.Variable.NodeId,
monitoredItem.Status.QueueSize,
monitoredItem.Status.DiscardOldest,
beforeIndex,
afterIndex);
success = false;
errorCount++;
continue;
}
// validate consecutive samples.
if (afterIndex - beforeIndex == 1)
{
bool unexpectedOverflow = false;
if (discardOldest)
{
if (after.Value.StatusCode.Overflow)
{
unexpectedOverflow = true;
}
}
else
{
if (before.Value.StatusCode.Overflow)
{
// overflow possible if the same value is reported scanned many times.
if (CalculateInterval(before.Timestamp, after.Timestamp) < m_publishingTime/2)
{
unexpectedOverflow = true;
}
}
}
if (unexpectedOverflow)
{
Log(
"Unexpected overflow between consecutive samples: {0}, NodeId={1}, QueueSize={2}, DiscardOldest={3}, SampleIndex={4}, Gap={5}",
variable.Variable,
variable.Variable.NodeId,
monitoredItem.Status.QueueSize,
monitoredItem.Status.DiscardOldest,
ii,
gap);
success = false;
errorCount++;
continue;
}
}
else
{
// check for overflow.
bool missingOverflow = false;
if (discardOldest)
{
if (!after.Value.StatusCode.Overflow)
{
missingOverflow = true;
}
}
else
{
if (!before.Value.StatusCode.Overflow)
{
missingOverflow = true;
}
}
// check for legimate overflows.
if (missingOverflow)
{
if (queueSize <= 1)
{
missingOverflow = false;
}
else if (writesPerPublish - queueSize <= 1)
{
missingOverflow = false;
}
}
if (missingOverflow)
{
Log(
"Missing overflow between non-consecutive samples: {0}, NodeId={1}, QueueSize={2}, DiscardOldest={3}, SampleIndex={4}, Gap={5}",
variable.Variable,
variable.Variable.NodeId,
monitoredItem.Status.QueueSize,
monitoredItem.Status.DiscardOldest,
ii,
gap);
success = false;
errorCount++;
continue;
}
}
}
}
}
}
lock (m_variables)
{
Log("Completed QueueSizeTest for {0} Nodes", m_variables.Count);
}
return success;
}
public void Initialize(Session session, Subscription subscription)
{
m_Session = session;
m_Subscription = subscription;
listView1.Items.Clear();
// Now monitor the server object for AuditSession Events
NodeId serverNodeId = new NodeId(Objects.Server);
Node serverNode = m_Session.NodeCache.Find(serverNodeId) as Node;
MonitoredItem serverItem = new MonitoredItem(m_Subscription.DefaultItem);
serverItem.StartNodeId = serverNode.NodeId;
serverItem.NodeClass = NodeClass.Object;
m_Subscription.AddItem(serverItem);
serverItem.Notification += m_ItemNotification;
AddSessions();
m_Subscription.ModifyItems();
m_Subscription.ApplyChanges();
}
public void LoadItems(Session session, List<DiagnosticListViewItem> items, Subscription subscription)
{
m_Session = session;
m_Subscription = subscription;
ItemsLV.Items.Clear();
foreach (DiagnosticListViewItem item in items)
{
MonitoredItem mi = item.CreateMonitoredItem(m_Session, m_Subscription, ItemsLV);
if (mi != null)
{
mi.Notification += m_ItemNotification;
item.MonitoredItem = mi;
}
}
m_Subscription.ApplyChanges();
}