/// <summary>
/// Displays the address space with the specified view
/// </summary>
public void Show(Session session, NodeId startId)
{
if (session == null) throw new ArgumentNullException("session");
if (m_session != null)
{
m_session.SessionClosing -= m_SessionClosing;
}
m_session = session;
m_session.SessionClosing += m_SessionClosing;
Browser browser = new Browser(session);
browser.BrowseDirection = BrowseDirection.Both;
browser.ContinueUntilDone = true;
browser.ReferenceTypeId = ReferenceTypeIds.References;
BrowseCTRL.Initialize(browser, startId);
UpdateNavigationBar();
Show();
BringToFront();
}
/// <summary>
/// Prompts the user to edit a value.
/// </summary>
public Variant ShowDialog(Session session, NodeId nodeId)
{
m_session = session;
m_nodeId = nodeId;
#region Task #B2 - Write Value
// generate a default value based on the data type.
m_value = Variant.Null;
m_sourceType = GetExpectedType(session, nodeId);
if (m_sourceType != null)
{
m_value = new Variant(TypeInfo.GetDefaultValue(m_sourceType.BuiltInType), m_sourceType);
}
// cast the value to a string.
ValueTB.Text = (string)TypeInfo.Cast(m_value.Value, m_value.TypeInfo, BuiltInType.String);
#endregion
if (ShowDialog() != DialogResult.OK)
{
return Variant.Null;
}
return m_value;
}
public static ReferenceDescriptionCollection Browse(Session session, BrowseDescription nodeToBrowse, bool throwOnError)
{
try
{
var descriptionCollection = new ReferenceDescriptionCollection();
var nodesToBrowse = new BrowseDescriptionCollection { nodeToBrowse };
BrowseResultCollection results;
DiagnosticInfoCollection diagnosticInfos;
session.Browse(null, null, 0U, nodesToBrowse, out results, out diagnosticInfos);
ClientBase.ValidateResponse(results, nodesToBrowse);
ClientBase.ValidateDiagnosticInfos(diagnosticInfos, nodesToBrowse);
while (!StatusCode.IsBad(results[0].StatusCode))
{
for (var index = 0; index < results[0].References.Count; ++index)
descriptionCollection.Add(results[0].References[index]);
if (results[0].References.Count == 0 || results[0].ContinuationPoint == null)
return descriptionCollection;
var continuationPoints = new ByteStringCollection();
continuationPoints.Add(results[0].ContinuationPoint);
session.BrowseNext(null, false, continuationPoints, out results, out diagnosticInfos);
ClientBase.ValidateResponse(results, continuationPoints);
ClientBase.ValidateDiagnosticInfos(diagnosticInfos, continuationPoints);
}
throw new ServiceResultException(results[0].StatusCode);
}
catch (Exception ex)
{
if (throwOnError)
throw new ServiceResultException(ex, 2147549184U);
return null;
}
}
/// <summary>
/// Displays the dialog.
/// </summary>
public void Show(Session session, NodeId objectId, NodeId methodId)
{
if (session == null) throw new ArgumentNullException("session");
if (methodId == null) throw new ArgumentNullException("methodId");
if (m_session != null)
{
m_session.SessionClosing -= m_SessionClosing;
}
m_session = session;
m_session.SessionClosing += m_SessionClosing;
m_objectId = objectId;
m_methodId = methodId;
InputArgumentsCTRL.Update(session, methodId, true);
OutputArgumentsCTRL.Update(session, methodId, false);
Node target = session.NodeCache.Find(objectId) as Node;
Node method = session.NodeCache.Find(methodId) as Node;
if (target != null && method != null)
{
Text = String.Format("Call {0}.{1}", target, method);
}
Show();
BringToFront();
}
/// <summary>
/// Prompts the user to specify the browse options.
/// </summary>
public bool ShowDialog(Session session, ReadValueId valueId)
{
if (session == null) throw new ArgumentNullException("session");
if (valueId == null) throw new ArgumentNullException("valueId");
NodeIdCTRL.Browser = new Browser(session);
INode node = session.NodeCache.Find(valueId.NodeId);
if (node != null)
{
DisplayNameTB.Text = node.ToString();
}
NodeIdCTRL.Identifier = valueId.NodeId;
AttributeIdCB.SelectedItem = Attributes.GetBrowseName(valueId.AttributeId);
IndexRangeTB.Text = valueId.IndexRange;
EncodingCB.Text = (valueId.DataEncoding != null)?valueId.DataEncoding.Name:null;
if (ShowDialog() != DialogResult.OK)
{
return false;
}
valueId.NodeId = NodeIdCTRL.Identifier;
valueId.AttributeId = Attributes.GetIdentifier((string)AttributeIdCB.SelectedItem);
valueId.IndexRange = IndexRangeTB.Text;
if (String.IsNullOrEmpty(EncodingCB.Text))
{
valueId.DataEncoding = new QualifiedName(EncodingCB.Text);
}
return true;
}
/// <summary>
/// Sets the nodes in the control.
/// </summary>
public void Initialize(Session session, NodeIdCollection nodeIds, NodeClass nodeClassMask)
{
if (session == null) throw new ArgumentNullException("session");
Clear();
m_session = session;
m_nodeIds = nodeIds;
m_nodeClassMask = (nodeClassMask == 0)?(NodeClass)Byte.MaxValue:nodeClassMask;
if (nodeIds == null)
{
return;
}
foreach (NodeId nodeId in nodeIds)
{
INode node = m_session.NodeCache.Find(nodeId);
if (node != null && (m_nodeClassMask & node.NodeClass) != 0)
{
AddItem(node, "Property", -1);
}
}
AdjustColumns();
}
/// <summary>
/// Updates the list control.
/// </summary>
private void UpdateList(Session session, Argument[] arguments, string browseName)
{
for (int ii = 0; ii < arguments.Length; ii++)
{
Argument argument = arguments[ii];
Variant defaultValue = new Variant(TypeInfo.GetDefaultValue(argument.DataType, argument.ValueRank));
ListViewItem item = new ListViewItem(arguments[ii].Name);
if (browseName == BrowseNames.InputArguments)
{
item.SubItems.Add("IN");
m_firstOutputArgument++;
}
else
{
item.SubItems.Add("OUT");
}
string dataType = session.NodeCache.GetDisplayText(arguments[ii].DataType);
if (arguments[ii].ValueRank >= 0)
{
dataType += "[]";
}
item.SubItems.Add(defaultValue.ToString());
item.SubItems.Add(dataType);
item.SubItems.Add(Utils.Format("{0}", arguments[ii].Description));
item.Tag = defaultValue;
ArgumentsLV.Items.Add(item);
}
}
public void Show(Session session, NodeId nodeId)
{
m_session = session;
m_nodeId = nodeId;
Show();
}
/// <summary>
/// Prompts the user to specify the browse options.
/// </summary>
public bool ShowDialog(Session session, WriteValue value)
{
if (session == null) throw new ArgumentNullException("session");
if (value == null) throw new ArgumentNullException("value");
NodeIdCTRL.Browser = new Browser(session);
INode node = session.NodeCache.Find(value.NodeId);
if (node != null)
{
DisplayNameTB.Text = node.ToString();
}
NodeIdCTRL.Identifier = value.NodeId;
AttributeIdCB.SelectedItem = Attributes.GetBrowseName(value.AttributeId);
IndexRangeTB.Text = value.IndexRange;
if (ShowDialog() != DialogResult.OK)
{
return false;
}
value.NodeId = NodeIdCTRL.Identifier;
value.AttributeId = Attributes.GetIdentifier((string)AttributeIdCB.SelectedItem);
value.IndexRange = IndexRangeTB.Text;
return true;
}
/// <summary>
/// Sets the nodes in the control.
/// </summary>
public void Initialize(Session session, ExpandedNodeId nodeId)
{
if (session == null) throw new ArgumentNullException("session");
Clear();
if (nodeId == null)
{
return;
}
m_session = session;
m_nodeId = (NodeId)nodeId;
INode node = m_session.NodeCache.Find(m_nodeId);
if (node != null && (node.NodeClass & (NodeClass.Variable | NodeClass.Object)) != 0)
{
AddReferences(ReferenceTypeIds.HasTypeDefinition, BrowseDirection.Forward);
AddReferences(ReferenceTypeIds.HasModellingRule, BrowseDirection.Forward);
}
AddAttributes();
AddProperties();
}
/// <summary>
/// Initializes the control with a root and a set of hierarchial reference types to follow.
/// </summary>
/// <param name="session">The session.</param>
/// <param name="rootId">The root of the hierarchy to browse.</param>
/// <param name="referenceTypeIds">The reference types to follow.</param>
public void Initialize(
Session session,
NodeId rootId,
params NodeId[] referenceTypeIds)
{
BrowseCTRL.Initialize(session, rootId, referenceTypeIds);
}
/// <summary>
/// Creates a new subscription.
/// </summary>
public Subscription New(Session session)
{
if (session == null) throw new ArgumentNullException("session");
Subscription subscription = new Subscription(session.DefaultSubscription);
if (!new SubscriptionEditDlg().ShowDialog(subscription))
{
return null;
}
session.AddSubscription(subscription);
subscription.Create();
Subscription duplicateSubscription = session.Subscriptions.FirstOrDefault(s => s.Id != 0 && s.Id.Equals(subscription.Id) && s != subscription);
if (duplicateSubscription != null)
{
Utils.Trace("Duplicate subscription was created with the id: {0}", duplicateSubscription.Id);
DialogResult result = MessageBox.Show("Duplicate subscription was created with the id: " + duplicateSubscription.Id + ". Do you want to keep it?", "Warning", MessageBoxButtons.YesNo);
if (result == System.Windows.Forms.DialogResult.No)
{
duplicateSubscription.Delete(false);
session.RemoveSubscription(subscription);
return null;
}
}
Show(subscription);
return subscription;
}
/// <summary>
/// Displays the available areas in a tree view.
/// </summary>
/// <param name="session">The session.</param>
/// <returns></returns>
public NodeId ShowDialog(Session session)
{
m_session = session;
TreeNode root = new TreeNode(BrowseNames.Server);
root.Nodes.Add(new TreeNode());
BrowseTV.Nodes.Add(root);
root.Expand();
// display the dialog.
if (ShowDialog() != DialogResult.OK)
{
return null;
}
// ensure selection is valid.
if (BrowseTV.SelectedNode == null)
{
return null;
}
// get the selection.
ReferenceDescription reference = (ReferenceDescription)BrowseTV.SelectedNode.Tag;
if (reference == null)
{
return ObjectIds.Server;
}
// return the result.
return (NodeId)reference.NodeId;
}
/// <summary>
/// Prompts the user to specify the browse options.
/// </summary>
public bool ShowDialog(Session session, MonitoredItem monitoredItem)
{
if (monitoredItem == null) throw new ArgumentNullException("monitoredItem");
DataChangeFilter filter = monitoredItem.Filter as DataChangeFilter;
if (filter == null)
{
filter = new DataChangeFilter();
filter.Trigger = DataChangeTrigger.StatusValue;
filter.DeadbandValue = 0;
filter.DeadbandType = (uint)(int)DeadbandType.None;
}
TriggerCB.SelectedItem = filter.Trigger;
DeadbandTypeCB.SelectedItem = (DeadbandType)(int)filter.DeadbandType;
DeadbandNC.Value = (decimal)filter.DeadbandValue;
if (ShowDialog() != DialogResult.OK)
{
return false;
}
filter.Trigger = (DataChangeTrigger)TriggerCB.SelectedItem;
filter.DeadbandType = Convert.ToUInt32(DeadbandTypeCB.SelectedItem);
filter.DeadbandValue = (double)DeadbandNC.Value;
monitoredItem.Filter = filter;
return true;
}
internal static NodeId FindCurrentNode(
string level,
Opc.Ua.Client.Session session,
ConfiguredEndpoint endpoint
)
{
NodeId curNode;
if (string.IsNullOrEmpty(level))
{
// Set the default root OPC node id to look at the objects
curNode = Objects.ObjectsFolder;
}
else
{
// need to decode the level to get the NodeId
string source;
if (level.StartsWith(UAurlIdentifier + "="))
{
source = getNSIStringfromNSURLString(level, session);
}
else
{
source = level;
}
//curNode = (NodeId)source;
curNode = GetNodeId(source, false, session, endpoint);
}
return(curNode);
}
/// <summary>
/// Initializes the test with session, configuration and logger.
/// </summary>
public TestBase(
string name,
Session session,
ServerTestConfiguration configuration,
ReportMessageEventHandler reportMessage,
ReportProgressEventHandler reportProgress,
TestBase template)
{
m_name = name;
m_session = session;
m_configuration = configuration;
m_reportMessage = reportMessage;
m_reportProgress = reportProgress;
if (template != null && Object.ReferenceEquals(session, template.m_session))
{
m_blockSize = template.BlockSize;
m_availableNodes = template.m_availableNodes;
m_writeableVariables = template.m_writeableVariables;
}
else
{
m_blockSize = 1000;
m_availableNodes = new NodeIdDictionary<Node>();
m_writeableVariables = new List<VariableNode>();
}
}
/// <summary>
/// Creates the monitored item based on the current definition.
/// </summary>
/// <param name="session">The session.</param>
/// <returns>The monitored item.</returns>
public MonitoredItem CreateMonitoredItem(Session session)
{
// choose the server object by default.
if (AreaId == null)
{
AreaId = ObjectIds.Server;
}
// create the item with the filter.
MonitoredItem monitoredItem = new MonitoredItem();
monitoredItem.DisplayName = null;
monitoredItem.StartNodeId = AreaId;
monitoredItem.RelativePath = null;
monitoredItem.NodeClass = NodeClass.Object;
monitoredItem.AttributeId = Attributes.EventNotifier;
monitoredItem.IndexRange = null;
monitoredItem.Encoding = null;
monitoredItem.MonitoringMode = MonitoringMode.Reporting;
monitoredItem.SamplingInterval = 0;
monitoredItem.QueueSize = UInt32.MaxValue;
monitoredItem.DiscardOldest = true;
monitoredItem.Filter = ConstructFilter(session);
// save the definition as the handle.
monitoredItem.Handle = this;
return monitoredItem;
}
/// <summary>
/// Updates the list of references.
/// </summary>
private void UpdateList(Session session, NodeId nodeId)
{
m_nodeId = nodeId;
ReferencesLV.Items.Clear();
List<ReferenceDescription> references = Browse(session, nodeId);
DisplayReferences(session, references);
}
/// <summary>
/// Prompts the user to view or edit the value.
/// </summary>
public object ShowDialog(
Session session,
NodeId nodeId,
uint attributeId,
string name,
object value,
bool readOnly,
string caption)
{
if (!String.IsNullOrEmpty(caption))
{
this.Text = caption;
}
OkBTN.Visible = !readOnly;
ValueCTRL.ChangeSession(session);
ValueCTRL.ShowValue(nodeId, attributeId, name, value, readOnly);
if (base.ShowDialog() != DialogResult.OK)
{
return null;
}
return ValueCTRL.GetValue();
}
/// <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>
/// Browses up.
/// </summary>
/// <param name="session">The session.</param>
public void BrowseUp(Session session)
{
TraceState("BrowseUp");
// find the id of the current node.
string itemId = null;
lock (m_lock)
{
// check if already at root.
if (m_browsePosition == null || String.IsNullOrEmpty(m_browsePosition.ItemId))
{
throw ComUtils.CreateComException(ResultIds.E_FAIL);
}
itemId = m_browsePosition.ItemId;
}
// find the parent - revert to root if parent does not exist.
ComDaBrowseElement parent = m_cache.FindParent(session, itemId);
lock (m_lock)
{
m_browsePosition = parent;
}
}
/// <summary>
/// Prompts the user to edit an annotation.
/// </summary>
public Annotation ShowDialog(Session session, Annotation annotation, string caption)
{
if (caption != null)
{
this.Text = caption;
}
m_session = session;
if (annotation == null)
{
annotation = new Annotation();
annotation.AnnotationTime = DateTime.UtcNow;
annotation.UserName = Environment.GetEnvironmentVariable("USERNAME");
annotation.Message = "<insert your message here>";
}
AnnotationTimeDP.Value = annotation.AnnotationTime;
UserNameTB.Text = annotation.UserName;
CommentTB.Text = annotation.Message;
if (ShowDialog() != DialogResult.OK)
{
return null;
}
annotation = new Annotation();
annotation.AnnotationTime = AnnotationTimeDP.Value;
annotation.UserName = UserNameTB.Text;
annotation.Message = CommentTB.Text;
return annotation;
}
/// <summary>
/// Initializes the object with default values.
/// </summary>
public NodeCache(Session session)
{
if (session == null) throw new ArgumentNullException("session");
m_session = session;
m_typeTree = new TypeTable(m_session.NamespaceUris);
m_nodes = new NodeTable(m_session.NamespaceUris, m_session.ServerUris, m_typeTree);
}
public void Show(Session session, NodeId objectId, NodeId methodId)
{
m_session = session;
m_objectId = objectId;
m_methodId = methodId;
Show();
}
private void Session_Closing(object sender, EventArgs e)
{
if (Object.ReferenceEquals(sender, m_session))
{
m_session.SessionClosing -= m_SessionClosing;
m_session = null;
}
}
/// <summary>
/// Creates the test object.
/// </summary>
public TranslatePathTest(
Session session,
ServerTestConfiguration configuration,
ReportMessageEventHandler reportMessage,
ReportProgressEventHandler reportProgress,
TestBase template)
:
base("TranslatePath", session, configuration, reportMessage, reportProgress, template)
{
}
/// <summary>
/// Sets the nodes in the control.
/// </summary>
public bool Update(Session session, NodeId methodId, bool inputArgs)
{
if (session == null) throw new ArgumentNullException("session");
if (methodId == null) throw new ArgumentNullException("methodId");
Clear();
m_session = session;
// find the method.
MethodNode method = session.NodeCache.Find(methodId) as MethodNode;
if (method == null)
{
return false;
}
// select the property to find.
QualifiedName browseName = null;
if (inputArgs)
{
browseName = Opc.Ua.BrowseNames.InputArguments;
}
else
{
browseName = Opc.Ua.BrowseNames.OutputArguments;
}
// fetch the argument list.
VariableNode argumentsNode = session.NodeCache.Find(methodId, ReferenceTypeIds.HasProperty, false, true, browseName) as VariableNode;
if (argumentsNode == null)
{
return false;
}
// read the value from the server.
DataValue value = m_session.ReadValue(argumentsNode.NodeId);
ExtensionObject[] argumentsList = value.Value as ExtensionObject[];
if (argumentsList != null)
{
for (int ii = 0; ii < argumentsList.Length; ii++)
{
AddItem(argumentsList[ii].Body as Argument);
}
}
AdjustColumns();
return ItemsLV.Items.Count > 0;
}
/// <summary>
/// Displays the dialog.
/// </summary>
public void Show(Session session, NodeId nodeId)
{
m_session = session;
m_nodeId = nodeId;
#region Task #B3 - Subscribe Data
CreateSubscription();
#endregion
Show();
}
//private ILocalNode m_selectedType;
#endregion
#region Public Interface
/// <summary>
/// Displays the dialog.
/// </summary>
public void Show(
Session session,
NodeId typeId)
{
if (session == null) throw new ArgumentNullException("session");
m_session = session;
//TypeNavigatorCTRL.Initialize(m_session, typeId);
//TypeHierarchyCTRL.Initialize(m_session, typeId);
}
/// <summary>
/// Displays a dialog that allows a use to edit a value.
/// </summary>
public static object EditValue(Session session, object value)
{
TypeInfo typeInfo = TypeInfo.Construct(value);
if (typeInfo != null)
{
return EditValue(session, value, (uint)typeInfo.BuiltInType, typeInfo.ValueRank);
}
return null;
}
/// <summary>
/// Initializes the object with the default values
/// </summary>
/// <param name="server">The server associated with the browser</param>
/// <param name="session">The session associated with the browser</param>
public AreaBrowser(ComAeProxy server, Session session)
{
m_server = server;
m_session = session;
// ensure browse stack has been initialized.
if (m_browseStack.Count == 0)
{
INode parent = m_session.NodeCache.Find(Objects.Server);
m_browseStack.Push(parent);
}
}
internal static string getNSUrlStringfromNodeId(NodeId nodeId, Opc.Ua.Client.Session session)
{
if (nodeId == null || nodeId.IsNullNodeId)
{
return(string.Empty);
}
string[] idSeparatorArray = { getNSIshortCutfromIDType(nodeId.IdType) };
string nodeIDString = nodeId.ToString();
if (nodeId.NamespaceIndex != 0)
{
// Hack. Remvove 'ns' from the beginning of the string so there is no collision with the later search for "s="
// only needed for nodeId.idType == String
nodeIDString = nodeIDString.Substring(2);
}
string[] idParts = nodeIDString.Split(idSeparatorArray, StringSplitOptions.RemoveEmptyEntries);
string[] idParts2 = nodeIDString.Split(idSeparatorArray, StringSplitOptions.None);
string result = String.Empty;
// we expect one string in case ns=0, two otherwise
// in case ns=0, empty identifier is not allowed, otherwise it is
// learnt this at Opc IOP Nürnberg 201411
if (!((idParts.Length == 1 && nodeId.NamespaceIndex == 0) || idParts.Length == 2))
{
if (idParts2.Length == idParts.Length || nodeId.NamespaceIndex == 0)
{
// OPC IOW 2014
// some parts of the nodeid string are empty. This is allowed (according to
// personal communication with Randy Newman) if !ns==0
throw (new ApplicationException("invalid String Representation of UA node"));
}
result = UAurlIdentifier + "=" + session.NodeCache.NamespaceUris.GetString(nodeId.NamespaceIndex) + ";" +
idSeparatorArray[0];
return(result);
}
result = UAurlIdentifier + "=" + session.NodeCache.NamespaceUris.GetString(nodeId.NamespaceIndex) + ";" +
idSeparatorArray[0] +
idParts[idParts.Length - 1];
return(result);
}
private static async Task RunClient(string address)
{
var clientApp = new ApplicationInstance
{
ApplicationName = "OPC UA StackOverflow Example Client",
ApplicationType = ApplicationType.Client,
ConfigSectionName = "Opc.Client"
};
// load the application configuration.
var clientConfig = await clientApp.LoadApplicationConfiguration(true);
var haveClientAppCertificate = await clientApp.CheckApplicationInstanceCertificate(true, 0);
if (!haveClientAppCertificate)
{
throw new Exception("Application instance certificate invalid!");
}
var endpointConfiguration = EndpointConfiguration.Create(clientConfig);
var selectedEndpoint = CoreClientUtils.SelectEndpoint(address, true, 15000);
var endpoint = new ConfiguredEndpoint(null, selectedEndpoint, endpointConfiguration);
using (var session = await Session.Create(clientConfig, endpoint, false, clientConfig.ApplicationName, 60000, new UserIdentity(new AnonymousIdentityToken()), null))
{
Console.WriteLine("Client connected");
var rootFolders = await session.BrowseAsync(ObjectIds.ObjectsFolder);
Console.WriteLine("Received root folders");
var childFolders = await Task.WhenAll(
from root in rootFolders
select session.BrowseAsync(ExpandedNodeId.ToNodeId(root.NodeId, session.NamespaceUris)));
foreach (var childFolder in childFolders.SelectMany(x => x).OrderBy(c => c.BrowseName.Name))
{
Console.WriteLine(childFolder.BrowseName.Name);
}
Console.WriteLine("Client disconnecting");
session.Close();
Console.WriteLine("Client disconnected");
}
Console.WriteLine("Client disposed");
}
internal static string getNSIStringfromNSURLString(string nsurlString, Opc.Ua.Client.Session clientSession,
Dictionary <int, string> nameSpaceIndexDict = null)
{
if (nsurlString == null || nsurlString.Equals(string.Empty))
{
return(nsurlString);
}
string[] firstDecomposition = nsurlString.Split(UANodeIDFirstSeparatorSingle, 2);
if (firstDecomposition.Length != 2 || !UAurlIdentifier.Equals(firstDecomposition[0]))
{
throw new ApplicationException("Invalid input when converting namespace URL to namespace index)");
}
string[] secondDecomposition = firstDecomposition[1].Split(UANodeIDSecondSeparatorSingle, 2);
if (secondDecomposition.Length != 2 || secondDecomposition[1].Length < 2)
{
throw new ApplicationException("Invalid input when converting namespace URL to namespace index)");
}
// verify the last part begins with "i=", "s=", "g=" or "b="
string idTypeID = secondDecomposition[1].Trim().Substring(0, 2);
if (!(UANodeIDIDidentifier.Any(s => idTypeID.Equals(s))))
{
throw new ApplicationException("Invalid input when converting namespace URL to namespace index: no valid IdType detected)");
}
if (nameSpaceIndexDict == null)
{
int nsindex = clientSession.NamespaceUris.GetIndex(secondDecomposition[0]);
if (nsindex < 0)
{
throw new ApplicationException("Invalid input when converting namespace URL to namespace index: namespace index is negative)");
}
return(UAnsIdentifier + "=" + nsindex.ToString() + ";" + secondDecomposition[1]);
}
else
{
// the index is unique or there is an error.
int index = nameSpaceIndexDict.FirstOrDefault(x => x.Value.Equals(secondDecomposition[0])).Key;
return(UAnsIdentifier + "=" + index.ToString() + ";" + secondDecomposition[1]);
}
}
public static Task <ReferenceDescriptionCollection> BrowseAsync(this Session session, NodeId nodeToBrowse)
{
return(Task.Factory.FromAsync(
(callback, state) =>
session.BeginBrowse(
null,
null,
nodeToBrowse,
0,
BrowseDirection.Forward,
ReferenceTypeIds.Organizes,
false,
(uint)NodeClass.Object,
callback,
state),
result =>
{
session.EndBrowse(result, out var continuationPoint, out var references);
return references;
},
private async Task <Opc.Ua.Client.Session> createSession(string url)
{
// select the best endpoint.
EndpointDescription endpointDescription = CoreClientUtils.SelectEndpoint(url, true, 5000);
EndpointConfiguration endpointConfiguration = EndpointConfiguration.Create(m_configuration);
ConfiguredEndpoint endpoint = new ConfiguredEndpoint(null, endpointDescription, endpointConfiguration);
UserIdentity user = new UserIdentity();
Opc.Ua.Client.Session session = await Opc.Ua.Client.Session.Create(
m_configuration,
endpoint,
false,
false,
"Collector Server",
60000,
user,
null);
return(session);
}
public static NodeId GetNodeId(string source,
bool firstOnly,
Opc.Ua.Client.Session session,
ConfiguredEndpoint endpoint)
{
NodeId nodeId = null;
try
{
// Determine Node Id
// if the tag comes from a persisted cache element, it may start with "nsurl="
if (source.StartsWith(UAurlIdentifier + "="))
{
source = getNSIStringfromNSURLString(source, session);
}
// in some cases we can shortcut: ns=ABC or i=2253 etc. or Channel1.Device1.Tag_1 are already Node Ids
if (source.Contains(UaNodeIdHintEqual) || (source.Contains(UaNodeIdHintPeriod)))
{
nodeId = (NodeId)source;
}
}
catch (ServiceResultException srex)
{
if ((srex.StatusCode == StatusCodes.BadCommunicationError) || (srex.StatusCode == StatusCodes.BadConnectionClosed))
{
//ConfiguredEndpoint endpoint = (ConfiguredEndpoint)this.agentInstance.SourceChannel.Aspects[OpcUaAgent.SessionConfigurationAspectName]
// .Properties[OpcUaAgent.SessionEndpointProperty].BinaryValue.Value;
}
}
catch (Exception ex)
{
throw new ArgumentException("Unable to determine Node Id from source path ", source, ex);
}
return(nodeId);
}
private async Task FindObjects(Opc.Ua.Client.Session session, NodeId nodeid)
{
if (session == null)
{
return;
}
try
{
ReferenceDescriptionCollection references;
Byte[] continuationPoint;
if (NodeIdsFromObjects.Contains(nodeid.ToString()))
{
return;
}
session.Browse(
null,
null,
nodeid,
0u,
BrowseDirection.Forward,
ReferenceTypeIds.HierarchicalReferences,
true,
(uint)NodeClass.Variable | (uint)NodeClass.Object,
out continuationPoint,
out references);
foreach (var rd in references)
{
Log(conn_name + " - " + rd.NodeId + ", " + rd.DisplayName + ", " + rd.BrowseName + ", " + rd.NodeClass);
if (rd.NodeClass == NodeClass.Variable && !NodeIds.Contains(rd.NodeId.ToString()))
{
NodeIds.Add(rd.NodeId.ToString());
ListMon.Add(
new MonitoredItem()
{
DisplayName = rd.DisplayName.ToString(),
StartNodeId = rd.NodeId.ToString(),
SamplingInterval = System.Convert.ToInt32(System.Convert.ToDouble(OPCUA_conn.autoCreateTagSamplingInterval) * 1000),
QueueSize = System.Convert.ToUInt32(OPCUA_conn.autoCreateTagQueueSize),
MonitoringMode = MonitoringMode.Reporting,
DiscardOldest = true,
AttributeId = Attributes.Value
});
}
else
if (rd.NodeClass == NodeClass.Object)
{
NodeIdsFromObjects.Add(nodeid.ToString());
await FindObjects(session, ExpandedNodeId.ToNodeId(rd.NodeId, session.NamespaceUris));
Thread.Yield();
//Thread.Sleep(1);
//await Task.Delay(1);
}
}
}
catch (Exception ex)
{
Log(conn_name + " - " + ex.Message);
}
}
