/// <summary>
/// Converts an OPC Foundation node to an Hylasoft OPC UA Node
/// </summary>
/// <param name="node">The node to convert</param>
/// <param name="parent">the parent node (optional)</param>
/// <returns></returns>
internal static UaNode ToHylaNode(this OpcF.ReferenceDescription node, Node parent = null)
{
var name = node.DisplayName.ToString();
var nodeId = node.NodeId.ToString();
return(new UaNode(name, nodeId, parent));
}
/// <summary>
/// Creates a node from a reference desciption.
/// </summary>
/// <param name="reference">The reference.</param>
public Node(ReferenceDescription reference)
{
Initialize();
m_nodeId = (NodeId)reference.NodeId;
m_nodeClass = reference.NodeClass;
m_browseName = reference.BrowseName;
m_displayName = reference.DisplayName;
}
/// <summary>
///
/// </summary>
/// <param name="mode"></param>
public NodeItem(Opc.Ua.ReferenceDescription mode)
{
if (mode != null)
{
this.mMode = mode;
if (this.mMode.NodeClass == NodeClass.Object)
{
mChildren.Add(new NodeItem(null));
}
}
}
/// <summary>
/// Determines whether a reference is in a view.
/// </summary>
/// <param name="description">The description.</param>
/// <param name="reference">The reference.</param>
/// <returns>
/// <c>true</c> whether a reference is in a view; otherwise, <c>false</c>.
/// </returns>
public bool IsReferenceInView(ViewDescription description, ReferenceDescription reference)
{
// everything is in the default view.
if (ViewDescription.IsDefault(description))
{
return(true);
}
lock (m_lock)
{
ViewNode view = null;
if (m_views.TryGetValue(description.ViewId, out view))
{
throw new ServiceResultException(StatusCodes.BadViewIdUnknown);
}
return(false);
}
}
/// <summary>
/// Initializes a new instance of the <see cref="EventFieldDefinition"/> class.
/// </summary>
/// <param name="parentField">The parent field.</param>
/// <param name="reference">The reference to the instance declaration node.</param>
public EventFieldDefinition(EventFieldDefinition parentField, ReferenceDescription reference)
{
DeclarationNode = reference;
Operand = new SimpleAttributeOperand();
// setting the typedefinition id to null ignores the event type when evaluating the operand.
Operand.TypeDefinitionId = null;
// event filters only support the NodeId attribute for objects and the Value attribute for Variables.
Operand.AttributeId = (reference.NodeClass == NodeClass.Variable) ? Attributes.Value : Attributes.NodeId;
// prefix the browse path with the parent browse path.
if (parentField != null)
{
Operand.BrowsePath = new QualifiedNameCollection(parentField.Operand.BrowsePath);
}
// add the child browse name.
Operand.BrowsePath.Add(reference.BrowseName);
// may select sub-sets of array values. Not used in this sample.
Operand.IndexRange = null;
// construct the display name.
StringBuilder buffer = new StringBuilder();
for (int ii = 0; ii < Operand.BrowsePath.Count; ii++)
{
if (buffer.Length > 0)
{
buffer.Append('/');
}
buffer.Append(Operand.BrowsePath[ii].Name);
}
DisplayName = buffer.ToString();
}
/// <summary>
/// Returns the references for the node that meets the criteria specified.
/// </summary>
protected virtual ReferenceDescription GetReferenceDescription(
ServerSystemContext context,
Dictionary<NodeId,NodeState> cache,
IReference reference,
ContinuationPoint continuationPoint)
{
ServerSystemContext systemContext = m_systemContext.Copy(context);
// create the type definition reference.
ReferenceDescription description = new ReferenceDescription();
description.NodeId = reference.TargetId;
description.SetReferenceType(continuationPoint.ResultMask, reference.ReferenceTypeId, !reference.IsInverse);
// check if reference is in the view.
if (!IsReferenceInView(context, continuationPoint, reference))
{
return null;
}
// do not cache target parameters for remote nodes.
if (reference.TargetId.IsAbsolute)
{
// only return remote references if no node class filter is specified.
if (continuationPoint.NodeClassMask != 0)
{
return null;
}
return description;
}
NodeState target = null;
// check for local reference.
NodeStateReference referenceInfo = reference as NodeStateReference;
if (referenceInfo != null)
{
target = referenceInfo.Target;
}
// check for internal reference.
if (target == null)
{
NodeHandle handle = GetManagerHandle(context, (NodeId)reference.TargetId, null) as NodeHandle;
if (handle != null)
{
target = ValidateNode(context, handle, null);
}
}
// the target may be a reference to a node in another node manager. In these cases
// the target attributes must be fetched by the caller. The Unfiltered flag tells the
// caller to do that.
if (target == null)
{
description.Unfiltered = true;
return description;
}
// apply node class filter.
if (continuationPoint.NodeClassMask != 0 && ((continuationPoint.NodeClassMask & (uint)target.NodeClass) == 0))
{
return null;
}
// check if target is in the view.
if (!IsNodeInView(context, continuationPoint, target))
{
return null;
}
// look up the type definition.
NodeId typeDefinition = null;
BaseInstanceState instance = target as BaseInstanceState;
if (instance != null)
{
typeDefinition = instance.TypeDefinitionId;
}
// set target attributes.
description.SetTargetAttributes(
continuationPoint.ResultMask,
target.NodeClass,
target.BrowseName,
target.DisplayName,
typeDefinition);
return description;
}
/// <summary>
/// Determines whether a reference is in a view.
/// </summary>
/// <param name="description">The description.</param>
/// <param name="reference">The reference.</param>
/// <returns>
/// <c>true</c> whether a reference is in a view; otherwise, <c>false</c>.
/// </returns>
public bool IsReferenceInView(ViewDescription description, ReferenceDescription reference)
{
// everything is in the default view.
if (ViewDescription.IsDefault(description))
{
return true;
}
lock (m_lock)
{
ViewNode view = null;
if (m_views.TryGetValue(description.ViewId, out view))
{
throw new ServiceResultException(StatusCodes.BadViewIdUnknown);
}
return false;
}
}
/// <summary>
/// Handles the click event for the OK button.
/// </summary>
private void OkBTN_Click(object sender, EventArgs e)
{
try
{
#region Task #B1 - Browse References
if (ReferencesLV.SelectedItems.Count == 0)
{
return;
}
m_reference = ReferencesLV.SelectedItems[0].Tag as ReferenceDescription;
#endregion
DialogResult = DialogResult.OK;
}
catch (Exception exception)
{
ClientUtils.HandleException(this.Text, exception);
}
}
/// <summary>
/// Changes the session used by the control.
/// </summary>
private void ChangeSession(Session session, bool refresh)
{
m_session = session;
if (AttributesControl != null)
{
AttributesControl.ChangeSession(session);
}
BrowseTV.Nodes.Clear();
if (m_session != null)
{
INode node = m_session.NodeCache.Find(m_rootId);
if (node != null)
{
TreeNode root = new TreeNode(node.ToString());
root.ImageIndex = ClientUtils.GetImageIndex(m_session, node.NodeClass, node.TypeDefinitionId, false);
root.SelectedImageIndex = ClientUtils.GetImageIndex(m_session, node.NodeClass, node.TypeDefinitionId, true);
ReferenceDescription reference = new ReferenceDescription();
reference.NodeId = node.NodeId;
reference.NodeClass = node.NodeClass;
reference.BrowseName = node.BrowseName;
reference.DisplayName = node.DisplayName;
reference.TypeDefinition = node.TypeDefinitionId;
root.Tag = reference;
root.Nodes.Add(new TreeNode());
BrowseTV.Nodes.Add(root);
root.Expand();
BrowseTV.SelectedNode = root;
}
}
}
private void ReadNode(NodeId nodeid, bool ignoreroot, bool ignorechildren, String DriverName)
{
INode node = m_session.NodeCache.Find(nodeid);
if (node != null)
{
//TreeNode root = new TreeNode(node.ToString());
//root.ImageIndex = ClientUtils.GetImageIndex(m_session, node.NodeClass, node.TypeDefinitionId, false);
//root.SelectedImageIndex = ClientUtils.GetImageIndex(m_session, node.NodeClass, node.TypeDefinitionId, true);
ReferenceDescription reference = new ReferenceDescription();
reference.NodeId = node.NodeId;
reference.NodeClass = node.NodeClass;
reference.BrowseName = node.BrowseName;
reference.DisplayName = node.DisplayName;
reference.TypeDefinition = node.TypeDefinitionId;
// build list of attributes to read.
ReadValueIdCollection nodesToRead = new ReadValueIdCollection();
foreach (uint attributeId in Attributes.GetIdentifiers())
{
ReadValueId nodeToRead = new ReadValueId();
nodeToRead.NodeId = (NodeId)reference.NodeId;
nodeToRead.AttributeId = attributeId;
nodesToRead.Add(nodeToRead);
}
// read the attributes.
DataValueCollection results = null;
DiagnosticInfoCollection diagnosticInfos = null;
m_session.Read(
null,
0,
TimestampsToReturn.Neither,
nodesToRead,
out results,
out diagnosticInfos);
if (ignoreroot == false)
{
//Log(results[0].ToString() + " \t| " + results[3].ToString() + " \t| "+ results[4].ToString() + " \t| " + results[12].ToString());
Log("UID:" + S80(results[(int)Attributes.NodeId - 1].ToString()) + " \tBrowseName: " + s40(results[(int)Attributes.BrowseName - 1].ToString()) + " \tDisplayName: " + s40(results[(int)Attributes.DisplayName - 1].ToString()) + " \tDescription: " + S80(results[(int)Attributes.Description - 1].ToString()) + " \tValue: " + results[(int)Attributes.Value - 1].ToString());
dr = dt.NewRow();
dr["UID"] = results[(int)Attributes.NodeId - 1].ToString();
dr["BrowseName"] = results[(int)Attributes.BrowseName - 1].ToString();
dr["DisplayName"] = results[(int)Attributes.DisplayName - 1].ToString();
dr["Description"] = results[(int)Attributes.Description - 1].ToString();
dr["Value"] = results[(int)Attributes.Value - 1].ToString();
dr["Name"] = DriverName;
dt.Rows.Add(dr);
if (results[(int)Attributes.AccessLevel - 1].Value != null)
{
if (((byte)(results[(int)Attributes.AccessLevel - 1].GetValue(typeof(byte))) & AccessLevels.HistoryRead) == AccessLevels.HistoryRead)
{
//gv.DataSource = dt;
ReadHistory(DateTime.Now.AddDays(-1), DateTime.Now, new NodeId(results[0].ToString()), 25, "");
}
}
}
if (ignorechildren == false)
{
BrowseDescriptionCollection nodesToBrowse = new BrowseDescriptionCollection();
BrowseDescription nodeToBrowse = new BrowseDescription();
nodeToBrowse.NodeId = nodeid;
nodeToBrowse.BrowseDirection = BrowseDirection.Forward;
nodeToBrowse.ReferenceTypeId = Opc.Ua.ReferenceTypeIds.HierarchicalReferences;
nodeToBrowse.IncludeSubtypes = true;
nodeToBrowse.NodeClassMask = 0;
nodeToBrowse.ResultMask = (uint)BrowseResultMask.All;
if (reference != null)
{
nodeToBrowse.NodeId = (NodeId)reference.NodeId;
}
nodesToBrowse.Add(nodeToBrowse);
ReferenceDescriptionCollection references = ClientUtils.Browse(m_session, null, nodesToBrowse, false);
for (int ii = 0; references != null && ii < references.Count; ii++)
{
reference = references[ii];
// build list of attributes to read.
nodesToRead = new ReadValueIdCollection();
foreach (uint attributeId in Attributes.GetIdentifiers())
{
ReadValueId nodeToRead = new ReadValueId();
nodeToRead.NodeId = (NodeId)reference.NodeId;
nodeToRead.AttributeId = attributeId;
nodesToRead.Add(nodeToRead);
}
// read the attributes.
results = null;
diagnosticInfos = null;
m_session.Read(
null,
0,
TimestampsToReturn.Neither,
nodesToRead,
out results,
out diagnosticInfos);
// Log("UID:"+results[0].ToString() + " \tBrowseName: " + results[(int)Attributes.BrowseName].ToString() + " \tDisplayName: " + results[(int)Attributes.DisplayName].ToString() + " \tDescription: " + results[(int)Attributes.Description].ToString() + " \t| " + results[(int)Attributes.Value].ToString());
//Log("UID:" + S80(results[(int)Attributes.NodeId - 1].ToString()) + " \tBrowseName: " + results[(int)Attributes.BrowseName - 1].ToString() + " \tDisplayName: " + results[(int)Attributes.DisplayName - 1].ToString() + " \tDescription: " + results[(int)Attributes.Description - 1].ToString() + " \tValue: " + results[(int)Attributes.Value - 1].ToString());
Log("UID:" + S80(results[(int)Attributes.NodeId - 1].ToString()) + " \tBrowseName: " + s40(results[(int)Attributes.BrowseName - 1].ToString()) + " \tDisplayName: " + s40(results[(int)Attributes.DisplayName - 1].ToString()) + " \tDescription: " + S80(results[(int)Attributes.Description - 1].ToString()) + " \tValue: " + results[(int)Attributes.Value - 1].ToString());
dr = dt.NewRow();
dr["UID"] = results[(int)Attributes.NodeId - 1].ToString();
dr["BrowseName"] = results[(int)Attributes.BrowseName - 1].ToString();
dr["DisplayName"] = results[(int)Attributes.DisplayName - 1].ToString();
dr["Description"] = results[(int)Attributes.Description - 1].ToString();
dr["Value"] = results[(int)Attributes.Value - 1].ToString();
dt.Rows.Add(dr);
try
{
if (results[(int)Attributes.AccessLevel - 1].Value != null)
{
if (((byte)(results[(int)Attributes.AccessLevel - 1].GetValue(typeof(byte))) & AccessLevels.HistoryRead) == AccessLevels.HistoryRead)
{
//gv.DataSource = dt;
ReadHistory(DateTime.Today, DateTime.Now, new NodeId(results[0].ToString()), 25, "");
}
}
else
{
if (results[(int)Attributes.Value - 1].Value == null)
{
// gv.DataSource = dt;
ReadNode(new NodeId(results[(int)Attributes.NodeId - 1].ToString()), true, false, "");
}
}
}
catch
{
Log("V=" + results[17].ToString());
}
}
}
}
}
public PropertyWithHistory(ReferenceDescription reference, byte accessLevel)
{
DisplayText = reference.ToString();
NodeId = (NodeId)reference.NodeId;
BrowseName = reference.BrowseName;
AccessLevel = accessLevel;
}
/// <summary>
///
/// </summary>
public override void Dispose()
{
Parent = null;
mMode = null;
base.Dispose();
}
/// <summary>
/// Converts a ReferenceDescription to an IReference.
/// </summary>
private IReference ToReference(ReferenceDescription reference)
{
if (reference.NodeId.IsAbsolute || reference.TypeDefinition.IsAbsolute)
{
return new NodeStateReference(reference.ReferenceTypeId, !reference.IsForward, reference.NodeId);
}
if (m_source != null && (reference.NodeId == ObjectIds.ObjectsFolder || reference.NodeId == ObjectIds.Server))
{
return new NodeStateReference(reference.ReferenceTypeId, !reference.IsForward, m_rootId);
}
NodeState target = null;
switch (reference.NodeClass)
{
case NodeClass.DataType: { target = new DataTypeState(); break; }
case NodeClass.Method: { target = new MethodState(null); break; }
case NodeClass.Object: { target = new BaseObjectState(null); break; }
case NodeClass.ObjectType: { target = new BaseObjectTypeState(); break; }
case NodeClass.ReferenceType: { target = new ReferenceTypeState(); break; }
case NodeClass.Variable: { target = new BaseDataVariableState(null); break; }
case NodeClass.VariableType: { target = new BaseDataVariableTypeState(); break; }
case NodeClass.View: { target = new ViewState(); break; }
}
target.NodeId = m_mapper.ToLocalId((NodeId)reference.NodeId);
target.BrowseName = m_mapper.ToLocalName(reference.BrowseName);
target.DisplayName = reference.DisplayName;
if (target is BaseInstanceState)
{
((BaseInstanceState)target).TypeDefinitionId = m_mapper.ToLocalId((NodeId)reference.TypeDefinition);
}
return new NodeStateReference(reference.ReferenceTypeId, !reference.IsForward, target);
}