/// <summary>
/// Get the clone from the types derived from this one.
/// </summary>
/// <returns>An instance of <see cref="T:UAOOI.SemanticData.UANodeSetValidation.XML.UANode" />.</returns>
protected override UANode ParentClone()
{
UAObjectType _ret = new UAObjectType();
base.CloneUAType(_ret);
return(_ret);
}
/// <summary>
/// Imports a node from the set.
/// </summary>
private NodeState Import(ISystemContext context, UANode node)
{
NodeState importedNode = null;
NodeClass nodeClass = NodeClass.Unspecified;
if (node is UAObject)
{
nodeClass = NodeClass.Object;
}
else if (node is UAVariable)
{
nodeClass = NodeClass.Variable;
}
else if (node is UAMethod)
{
nodeClass = NodeClass.Method;
}
else if (node is UAObjectType)
{
nodeClass = NodeClass.ObjectType;
}
else if (node is UAVariableType)
{
nodeClass = NodeClass.VariableType;
}
else if (node is UADataType)
{
nodeClass = NodeClass.DataType;
}
else if (node is UAReferenceType)
{
nodeClass = NodeClass.ReferenceType;
}
else if (node is UAView)
{
nodeClass = NodeClass.View;
}
switch (nodeClass)
{
case NodeClass.Object:
{
UAObject o = (UAObject)node;
BaseObjectState value = new BaseObjectState(null);
value.EventNotifier = o.EventNotifier;
importedNode = value;
break;
}
case NodeClass.Variable:
{
UAVariable o = (UAVariable)node;
NodeId typeDefinitionId = null;
if (node.References != null)
{
for (int ii = 0; ii < node.References.Length; ii++)
{
Opc.Ua.NodeId referenceTypeId = ImportNodeId(node.References[ii].ReferenceType, context.NamespaceUris, true);
bool isInverse = !node.References[ii].IsForward;
Opc.Ua.ExpandedNodeId targetId = ImportExpandedNodeId(node.References[ii].Value, context.NamespaceUris, context.ServerUris);
if (referenceTypeId == ReferenceTypeIds.HasTypeDefinition && !isInverse)
{
typeDefinitionId = Opc.Ua.ExpandedNodeId.ToNodeId(targetId, context.NamespaceUris);
break;
}
}
}
BaseVariableState value = null;
if (typeDefinitionId == Opc.Ua.VariableTypeIds.PropertyType)
{
value = new PropertyState(null);
}
else
{
value = new BaseDataVariableState(null);
}
value.DataType = ImportNodeId(o.DataType, context.NamespaceUris, true);
value.ValueRank = o.ValueRank;
value.ArrayDimensions = ImportArrayDimensions(o.ArrayDimensions);
value.AccessLevelEx = o.AccessLevel;
value.UserAccessLevel = (byte)(o.AccessLevel & 0xFF);
value.MinimumSamplingInterval = o.MinimumSamplingInterval;
value.Historizing = o.Historizing;
if (o.Value != null)
{
XmlDecoder decoder = CreateDecoder(context, o.Value);
TypeInfo typeInfo = null;
value.Value = decoder.ReadVariantContents(out typeInfo);
decoder.Close();
}
importedNode = value;
break;
}
case NodeClass.Method:
{
UAMethod o = (UAMethod)node;
MethodState value = new MethodState(null);
value.Executable = o.Executable;
value.UserExecutable = o.Executable;
value.TypeDefinitionId = ImportNodeId(o.MethodDeclarationId, context.NamespaceUris, true);
importedNode = value;
break;
}
case NodeClass.View:
{
UAView o = (UAView)node;
ViewState value = new ViewState();
value.ContainsNoLoops = o.ContainsNoLoops;
importedNode = value;
break;
}
case NodeClass.ObjectType:
{
UAObjectType o = (UAObjectType)node;
BaseObjectTypeState value = new BaseObjectTypeState();
value.IsAbstract = o.IsAbstract;
importedNode = value;
break;
}
case NodeClass.VariableType:
{
UAVariableType o = (UAVariableType)node;
BaseVariableTypeState value = new BaseDataVariableTypeState();
value.IsAbstract = o.IsAbstract;
value.DataType = ImportNodeId(o.DataType, context.NamespaceUris, true);
value.ValueRank = o.ValueRank;
value.ArrayDimensions = ImportArrayDimensions(o.ArrayDimensions);
if (o.Value != null)
{
XmlDecoder decoder = CreateDecoder(context, o.Value);
TypeInfo typeInfo = null;
value.Value = decoder.ReadVariantContents(out typeInfo);
decoder.Close();
}
importedNode = value;
break;
}
case NodeClass.DataType:
{
UADataType o = (UADataType)node;
DataTypeState value = new DataTypeState();
value.IsAbstract = o.IsAbstract;
Opc.Ua.DataTypeDefinition dataTypeDefinition = Import(o, o.Definition, context.NamespaceUris);
value.DataTypeDefinition = new ExtensionObject(dataTypeDefinition);
value.Purpose = o.Purpose;
value.DataTypeModifier = DataTypeModifier.None;
if (o.Definition != null)
{
if (o.Definition.IsOptionSet)
{
value.DataTypeModifier = DataTypeModifier.OptionSet;
}
else if (o.Definition.IsUnion)
{
value.DataTypeModifier = DataTypeModifier.Union;
}
}
importedNode = value;
break;
}
case NodeClass.ReferenceType:
{
UAReferenceType o = (UAReferenceType)node;
ReferenceTypeState value = new ReferenceTypeState();
value.IsAbstract = o.IsAbstract;
value.InverseName = Import(o.InverseName);
value.Symmetric = o.Symmetric;
importedNode = value;
break;
}
}
importedNode.NodeId = ImportNodeId(node.NodeId, context.NamespaceUris, false);
importedNode.BrowseName = ImportQualifiedName(node.BrowseName, context.NamespaceUris);
importedNode.DisplayName = Import(node.DisplayName);
if (importedNode.DisplayName == null)
{
importedNode.DisplayName = new Ua.LocalizedText(importedNode.BrowseName.Name);
}
importedNode.Description = Import(node.Description);
importedNode.Categories = (node.Category != null && node.Category.Length > 0) ? node.Category : null;
importedNode.ReleaseStatus = node.ReleaseStatus;
importedNode.WriteMask = (AttributeWriteMask)node.WriteMask;
importedNode.UserWriteMask = (AttributeWriteMask)node.UserWriteMask;
importedNode.Extensions = node.Extensions;
if (!String.IsNullOrEmpty(node.SymbolicName))
{
importedNode.SymbolicName = node.SymbolicName;
}
if (node.References != null)
{
BaseInstanceState instance = importedNode as BaseInstanceState;
BaseTypeState type = importedNode as BaseTypeState;
for (int ii = 0; ii < node.References.Length; ii++)
{
Opc.Ua.NodeId referenceTypeId = ImportNodeId(node.References[ii].ReferenceType, context.NamespaceUris, true);
bool isInverse = !node.References[ii].IsForward;
Opc.Ua.ExpandedNodeId targetId = ImportExpandedNodeId(node.References[ii].Value, context.NamespaceUris, context.ServerUris);
if (instance != null)
{
if (referenceTypeId == ReferenceTypeIds.HasModellingRule && !isInverse)
{
instance.ModellingRuleId = Opc.Ua.ExpandedNodeId.ToNodeId(targetId, context.NamespaceUris);
continue;
}
if (referenceTypeId == ReferenceTypeIds.HasTypeDefinition && !isInverse)
{
instance.TypeDefinitionId = Opc.Ua.ExpandedNodeId.ToNodeId(targetId, context.NamespaceUris);
continue;
}
}
if (type != null)
{
if (referenceTypeId == ReferenceTypeIds.HasSubtype && isInverse)
{
type.SuperTypeId = Opc.Ua.ExpandedNodeId.ToNodeId(targetId, context.NamespaceUris);
continue;
}
}
importedNode.AddReference(referenceTypeId, isInverse, targetId);
}
}
return(importedNode);
}
/// <summary>
/// Adds a node to the set.
/// </summary>
public void Export(ISystemContext context, NodeState node, bool outputRedundantNames = true)
{
if (node == null)
{
throw new ArgumentNullException(nameof(node));
}
if (Opc.Ua.NodeId.IsNull(node.NodeId))
{
throw new ArgumentException("A non-null NodeId must be specified.");
}
UANode exportedNode = null;
switch (node.NodeClass)
{
case NodeClass.Object:
{
BaseObjectState o = (BaseObjectState)node;
UAObject value = new UAObject();
value.EventNotifier = o.EventNotifier;
if (o.Parent != null)
{
value.ParentNodeId = ExportAlias(o.Parent.NodeId, context.NamespaceUris);
}
exportedNode = value;
break;
}
case NodeClass.Variable:
{
BaseVariableState o = (BaseVariableState)node;
UAVariable value = new UAVariable();
value.DataType = ExportAlias(o.DataType, context.NamespaceUris);
value.ValueRank = o.ValueRank;
value.ArrayDimensions = Export(o.ArrayDimensions);
value.AccessLevel = o.AccessLevelEx;
value.MinimumSamplingInterval = o.MinimumSamplingInterval;
value.Historizing = o.Historizing;
if (o.Parent != null)
{
value.ParentNodeId = ExportAlias(o.Parent.NodeId, context.NamespaceUris);
}
if (o.Value != null)
{
XmlEncoder encoder = CreateEncoder(context);
Variant variant = new Variant(o.Value);
encoder.WriteVariantContents(variant.Value, variant.TypeInfo);
XmlDocument document = new XmlDocument();
document.InnerXml = encoder.Close();
value.Value = document.DocumentElement;
}
exportedNode = value;
break;
}
case NodeClass.Method:
{
MethodState o = (MethodState)node;
UAMethod value = new UAMethod();
value.Executable = o.Executable;
if (o.TypeDefinitionId != null && !o.TypeDefinitionId.IsNullNodeId && o.TypeDefinitionId != o.NodeId)
{
value.MethodDeclarationId = Export(o.TypeDefinitionId, context.NamespaceUris);
}
if (o.Parent != null)
{
value.ParentNodeId = ExportAlias(o.Parent.NodeId, context.NamespaceUris);
}
exportedNode = value;
break;
}
case NodeClass.View:
{
ViewState o = (ViewState)node;
UAView value = new UAView();
value.ContainsNoLoops = o.ContainsNoLoops;
exportedNode = value;
break;
}
case NodeClass.ObjectType:
{
BaseObjectTypeState o = (BaseObjectTypeState)node;
UAObjectType value = new UAObjectType();
value.IsAbstract = o.IsAbstract;
exportedNode = value;
break;
}
case NodeClass.VariableType:
{
BaseVariableTypeState o = (BaseVariableTypeState)node;
UAVariableType value = new UAVariableType();
value.IsAbstract = o.IsAbstract;
value.DataType = ExportAlias(o.DataType, context.NamespaceUris);
value.ValueRank = o.ValueRank;
value.ArrayDimensions = Export(o.ArrayDimensions);
if (o.Value != null)
{
XmlEncoder encoder = CreateEncoder(context);
Variant variant = new Variant(o.Value);
encoder.WriteVariantContents(variant.Value, variant.TypeInfo);
XmlDocument document = new XmlDocument();
document.InnerXml = encoder.Close();
value.Value = document.DocumentElement;
}
exportedNode = value;
break;
}
case NodeClass.DataType:
{
DataTypeState o = (DataTypeState)node;
UADataType value = new UADataType();
value.IsAbstract = o.IsAbstract;
value.Definition = Export(o, o.DataTypeDefinition, context.NamespaceUris, outputRedundantNames);
value.Purpose = o.Purpose;
exportedNode = value;
break;
}
case NodeClass.ReferenceType:
{
ReferenceTypeState o = (ReferenceTypeState)node;
UAReferenceType value = new UAReferenceType();
value.IsAbstract = o.IsAbstract;
if (!Opc.Ua.LocalizedText.IsNullOrEmpty(o.InverseName))
{
value.InverseName = Export(new Opc.Ua.LocalizedText[] { o.InverseName });
}
value.Symmetric = o.Symmetric;
exportedNode = value;
break;
}
}
exportedNode.NodeId = Export(node.NodeId, context.NamespaceUris);
exportedNode.BrowseName = Export(node.BrowseName, context.NamespaceUris);
if (outputRedundantNames || node.DisplayName.Text != node.BrowseName.Name)
{
exportedNode.DisplayName = Export(new Opc.Ua.LocalizedText[] { node.DisplayName });
}
else
{
exportedNode.DisplayName = null;
}
if (node.Description != null && !String.IsNullOrEmpty(node.Description.Text))
{
exportedNode.Description = Export(new Opc.Ua.LocalizedText[] { node.Description });
}
else
{
exportedNode.Description = new LocalizedText[0];
}
exportedNode.Category = (node.Categories != null && node.Categories.Count > 0) ? new List <string>(node.Categories).ToArray() : null;
exportedNode.ReleaseStatus = node.ReleaseStatus;
exportedNode.WriteMask = (uint)node.WriteMask;
exportedNode.UserWriteMask = (uint)node.UserWriteMask;
exportedNode.Extensions = node.Extensions;
if (!String.IsNullOrEmpty(node.SymbolicName) && node.SymbolicName != node.BrowseName.Name)
{
exportedNode.SymbolicName = node.SymbolicName;
}
// export references.
INodeBrowser browser = node.CreateBrowser(context, null, null, true, BrowseDirection.Both, null, null, true);
List <Reference> exportedReferences = new List <Reference>();
IReference reference = browser.Next();
while (reference != null)
{
if (node.NodeClass == NodeClass.Method)
{
if (!reference.IsInverse && reference.ReferenceTypeId == ReferenceTypeIds.HasTypeDefinition)
{
reference = browser.Next();
continue;
}
}
Reference exportedReference = new Reference();
exportedReference.ReferenceType = ExportAlias(reference.ReferenceTypeId, context.NamespaceUris);
exportedReference.IsForward = !reference.IsInverse;
exportedReference.Value = Export(reference.TargetId, context.NamespaceUris, context.ServerUris);
exportedReferences.Add(exportedReference);
reference = browser.Next();
}
exportedNode.References = exportedReferences.ToArray();
// add node to list.
UANode[] nodes = null;
int count = 1;
if (this.Items == null)
{
nodes = new UANode[count];
}
else
{
count += this.Items.Length;
nodes = new UANode[count];
Array.Copy(this.Items, nodes, this.Items.Length);
}
nodes[count - 1] = exportedNode;
this.Items = nodes;
// recusively process children.
List <BaseInstanceState> children = new List <BaseInstanceState>();
node.GetChildren(context, children);
for (int ii = 0; ii < children.Count; ii++)
{
Export(context, children[ii], outputRedundantNames);
}
}
private static void Update(IObjectTypeFactory nodeDesign, UAObjectType nodeSet)
{
}
// OPC UA defines variables, views and objects, as well as associated variabletypes, datatypes, referencetypes and objecttypes
// In addition, OPC UA defines methods and properties
public static void Generate(UANodeSet nodeSet)
{
// clear previously generated DTDL
_map.Clear();
_interfaceList.Clear();
_contentsList.Clear();
_nodeList.Clear();
_nodesetNamespaceURI = nodeSet.NamespaceUris[0];
CreateSchemaMap();
// create DTDL interfaces and their contents
foreach (UANode uaNode in nodeSet.Items)
{
UAVariable variable = uaNode as UAVariable;
if (variable != null)
{
if (uaNode.BrowseName.ToString() == "InputArguments")
{
continue;
}
// check if this node is part of the model
bool isPartOfModel = false;
foreach (Reference reference in variable.References)
{
if (reference.ReferenceType == "HasModellingRule")
{
isPartOfModel = true;
break;
}
}
if (isPartOfModel)
{
// ignore this node
continue;
}
DtdlContents dtdlTelemetry = new DtdlContents
{
Type = "Telemetry",
Name = Regex.Replace(uaNode.BrowseName.ToString().Trim(), "[^A-Za-z]+", ""),
Schema = GetDtdlDataType(variable.DataType)
};
Tuple <DtdlContents, string> newTuple = new Tuple <DtdlContents, string>(dtdlTelemetry, variable.ParentNodeId);
if (!_contentsList.Contains(newTuple))
{
_contentsList.Add(newTuple);
}
Tuple <string, string, string> newNodeTuple;
if (variable.BrowseName.Length > 0)
{
newNodeTuple = new Tuple <string, string, string>(variable.BrowseName, GetDtdlDataType(variable.DataType.ToString()), variable.ParentNodeId ?? "");
}
else
{
newNodeTuple = new Tuple <string, string, string>(variable.NodeId.ToString(), GetDtdlDataType(variable.DataType.ToString()), variable.ParentNodeId ?? "");
}
string key = nodeSet.NamespaceUris[0] + "#" + variable.NodeId.ToString().Substring(variable.NodeId.ToString().IndexOf(';') + 1);
if (!_nodeList.ContainsKey(key))
{
_nodeList.Add(key, newNodeTuple);
}
continue;
}
UAMethod method = uaNode as UAMethod;
if (method != null)
{
// check if this node is part of the model
bool isPartOfModel = false;
foreach (Reference reference in method.References)
{
if (reference.ReferenceType == "HasModellingRule")
{
isPartOfModel = true;
break;
}
}
if (isPartOfModel)
{
// ignore this node
continue;
}
DtdlContents dtdlCommand = new DtdlContents
{
Type = "Command",
Name = Regex.Replace(uaNode.BrowseName.ToString().Trim(), "[^A-Za-z]+", "")
};
Tuple <DtdlContents, string> newTuple = new Tuple <DtdlContents, string>(dtdlCommand, method.ParentNodeId);
if (!_contentsList.Contains(newTuple))
{
_contentsList.Add(newTuple);
}
Tuple <string, string, string> newNodeTuple;
if (method.BrowseName.Length > 0)
{
newNodeTuple = new Tuple <string, string, string>(method.BrowseName, "command", method.ParentNodeId ?? "");
}
else
{
newNodeTuple = new Tuple <string, string, string>(method.NodeId.ToString(), "command", method.ParentNodeId ?? "");
}
string key = nodeSet.NamespaceUris[0] + "#" + method.NodeId.ToString().Substring(method.NodeId.ToString().IndexOf(';') + 1);
if (!_nodeList.ContainsKey(key))
{
_nodeList.Add(key, newNodeTuple);
}
continue;
}
UAObject uaObject = uaNode as UAObject;
if (uaObject != null)
{
// check if this node is part of the model
bool isPartOfModel = false;
foreach (Reference reference in uaObject.References)
{
if (reference.ReferenceType == "HasModellingRule")
{
isPartOfModel = true;
break;
}
}
if (isPartOfModel)
{
// ignore this node
continue;
}
DtdlInterface dtdlInterface = new DtdlInterface
{
Id = "dtmi:" + Regex.Replace(uaNode.BrowseName.ToString().Trim(), "[^A-Za-z]+", "") + ";1",
Type = "Interface",
DisplayName = Regex.Replace(uaNode.BrowseName.ToString().Trim(), "[^A-Za-z]+", ""),
Contents = new List <DtdlContents>()
};
Tuple <DtdlInterface, string, string> newTuple = new Tuple <DtdlInterface, string, string>(dtdlInterface, uaObject.NodeId, uaObject.ParentNodeId);
if (!_interfaceList.Contains(newTuple))
{
_interfaceList.Add(newTuple);
}
Tuple <string, string, string> newNodeTuple;
if (uaObject.BrowseName.Length > 0)
{
newNodeTuple = new Tuple <string, string, string>(uaObject.BrowseName, "object", uaObject.ParentNodeId ?? "");
}
else
{
newNodeTuple = new Tuple <string, string, string>(uaObject.NodeId.ToString(), "object", uaObject.ParentNodeId ?? "");
}
string key = nodeSet.NamespaceUris[0] + "#" + uaObject.NodeId.ToString().Substring(uaObject.NodeId.ToString().IndexOf(';') + 1);
if (!_nodeList.ContainsKey(key))
{
_nodeList.Add(key, newNodeTuple);
}
continue;
}
UAView view = uaNode as UAView;
if (view != null)
{
// we don't map views since DTDL has no such concept
continue;
}
UAVariableType variableType = uaNode as UAVariableType;
if (variableType != null)
{
// we don't map UA variable types, only instances. DTDL only has a limited set of built-in types.
continue;
}
UADataType dataType = uaNode as UADataType;
if (dataType != null)
{
// we don't map UA data types, only instances. DTDL only has a limited set of built-in types.
continue;
}
UAReferenceType referenceType = uaNode as UAReferenceType;
if (referenceType != null)
{
// we don't map UA reference types, only instances. DTDL only has a limited set of built-in types.
continue;
}
UAObjectType objectType = uaNode as UAObjectType;
if (objectType != null)
{
// we don't map UA object (custom) types, only instances. DTDL only has a limited set of built-in types.
continue;
}
throw new ArgumentException("Unknown UA node detected!");
}
AddComponentsToInterfaces();
AddRelationshipsBetweenInterfaces();
// generate JSON files
foreach (Tuple <DtdlInterface, string, string> dtdlInterfaceTuple in _interfaceList)
{
string generatedDTDL = JsonConvert.SerializeObject(dtdlInterfaceTuple.Item1, Formatting.Indented);
string dtdlPath = Path.Combine(Directory.GetCurrentDirectory(), "JSON", Path.GetFileNameWithoutExtension(dtdlInterfaceTuple.Item1.DisplayName) + ".dtdl.json");
System.IO.File.WriteAllText(dtdlPath, generatedDTDL);
}
}
/// <summary>
/// Adds a node to the set.
/// </summary>
public void Export(ISystemContext context, NodeState node)
{
if (node == null) throw new ArgumentNullException("node");
if (Opc.Ua.NodeId.IsNull(node.NodeId))
{
throw new ArgumentException("A non-null NodeId must be specified.");
}
UANode exportedNode = null;
switch (node.NodeClass)
{
case NodeClass.Object:
{
BaseObjectState o = (BaseObjectState)node;
UAObject value = new UAObject();
value.EventNotifier = o.EventNotifier;
if (o.Parent != null)
{
value.ParentNodeId = ExportAlias(o.Parent.NodeId, context.NamespaceUris);
}
exportedNode = value;
break;
}
case NodeClass.Variable:
{
BaseVariableState o = (BaseVariableState)node;
UAVariable value = new UAVariable();
value.DataType = ExportAlias(o.DataType, context.NamespaceUris);
value.ValueRank = o.ValueRank;
value.ArrayDimensions = Export(o.ArrayDimensions);
value.AccessLevel = o.AccessLevel;
value.UserAccessLevel = o.UserAccessLevel;
value.MinimumSamplingInterval = o.MinimumSamplingInterval;
value.Historizing = o.Historizing;
if (o.Parent != null)
{
value.ParentNodeId = ExportAlias(o.Parent.NodeId, context.NamespaceUris);
}
if (o.Value != null)
{
XmlEncoder encoder = CreateEncoder(context);
Variant variant = new Variant(o.Value);
encoder.WriteVariantContents(variant.Value, variant.TypeInfo);
XmlDocument document = new XmlDocument();
document.InnerXml = encoder.Close();
value.Value = document.DocumentElement;
}
exportedNode = value;
break;
}
case NodeClass.Method:
{
MethodState o = (MethodState)node;
UAMethod value = new UAMethod();
value.Executable = o.Executable;
value.UserExecutable = o.UserExecutable;
if (o.Parent != null)
{
value.ParentNodeId = ExportAlias(o.Parent.NodeId, context.NamespaceUris);
}
exportedNode = value;
break;
}
case NodeClass.View:
{
ViewState o = (ViewState)node;
UAView value = new UAView();
value.ContainsNoLoops = o.ContainsNoLoops;
exportedNode = value;
break;
}
case NodeClass.ObjectType:
{
BaseObjectTypeState o = (BaseObjectTypeState)node;
UAObjectType value = new UAObjectType();
value.IsAbstract = o.IsAbstract;
exportedNode = value;
break;
}
case NodeClass.VariableType:
{
BaseVariableTypeState o = (BaseVariableTypeState)node;
UAVariableType value = new UAVariableType();
value.IsAbstract = o.IsAbstract;
value.DataType = ExportAlias(o.DataType, context.NamespaceUris);
value.ValueRank = o.ValueRank;
value.ArrayDimensions = Export(o.ArrayDimensions);
if (o.Value != null)
{
XmlEncoder encoder = CreateEncoder(context);
Variant variant = new Variant(o.Value);
encoder.WriteVariantContents(variant.Value, variant.TypeInfo);
XmlDocument document = new XmlDocument();
document.InnerXml = encoder.Close();
value.Value = document.DocumentElement;
}
exportedNode = value;
break;
}
case NodeClass.DataType:
{
DataTypeState o = (DataTypeState)node;
UADataType value = new UADataType();
value.IsAbstract = o.IsAbstract;
value.Definition = Export(o.Definition, context.NamespaceUris);
exportedNode = value;
break;
}
case NodeClass.ReferenceType:
{
ReferenceTypeState o = (ReferenceTypeState)node;
UAReferenceType value = new UAReferenceType();
value.IsAbstract = o.IsAbstract;
value.InverseName = Export(new Opc.Ua.LocalizedText[] { o.InverseName });
value.Symmetric = o.Symmetric;
exportedNode = value;
break;
}
}
exportedNode.NodeId = Export(node.NodeId, context.NamespaceUris);
exportedNode.BrowseName = Export(node.BrowseName, context.NamespaceUris);
exportedNode.DisplayName = Export(new Opc.Ua.LocalizedText[] { node.DisplayName });
exportedNode.Description = Export(new Opc.Ua.LocalizedText[] { node.Description });
exportedNode.WriteMask = (uint)node.WriteMask;
exportedNode.UserWriteMask = (uint)node.UserWriteMask;
if (!String.IsNullOrEmpty(node.SymbolicName) && node.SymbolicName != node.BrowseName.Name)
{
exportedNode.SymbolicName = node.SymbolicName;
}
// export references.
INodeBrowser browser = node.CreateBrowser(context, null, null, true, BrowseDirection.Both, null, null, true);
List<Reference> exportedReferences = new List<Reference>();
IReference reference = browser.Next();
while (reference != null)
{
Reference exportedReference = new Reference();
exportedReference.ReferenceType = ExportAlias(reference.ReferenceTypeId, context.NamespaceUris);
exportedReference.IsForward = !reference.IsInverse;
exportedReference.Value = Export(reference.TargetId, context.NamespaceUris, context.ServerUris);
exportedReferences.Add(exportedReference);
reference = browser.Next();
}
exportedNode.References = exportedReferences.ToArray();
// add node to list.
UANode[] nodes = null;
int count = 1;
if (this.Items == null)
{
nodes = new UANode[count];
}
else
{
count += this.Items.Length;
nodes = new UANode[count];
Array.Copy(this.Items, nodes, this.Items.Length);
}
nodes[count-1] = exportedNode;
this.Items = nodes;
// recusively process children.
List<BaseInstanceState> children = new List<BaseInstanceState>();
node.GetChildren(context, children);
for (int ii = 0; ii < children.Count; ii++)
{
Export(context, children[ii]);
}
}
