/// <summary>
/// Imports a ExpandedNodeId
/// </summary>
private Opc.Ua.ExpandedNodeId ImportExpandedNodeId(string source, NamespaceTable namespaceUris, StringTable serverUris)
{
if (String.IsNullOrEmpty(source))
{
return(Opc.Ua.ExpandedNodeId.Null);
}
// parse the node.
Opc.Ua.ExpandedNodeId nodeId = Opc.Ua.ExpandedNodeId.Parse(source);
if (nodeId.ServerIndex <= 0 && nodeId.NamespaceIndex <= 0 && String.IsNullOrEmpty(nodeId.NamespaceUri))
{
return(nodeId);
}
uint serverIndex = ImportServerIndex(nodeId.ServerIndex, serverUris);
ushort namespaceIndex = ImportNamespaceIndex(nodeId.NamespaceIndex, namespaceUris);
if (serverIndex > 0)
{
string namespaceUri = nodeId.NamespaceUri;
if (String.IsNullOrEmpty(nodeId.NamespaceUri))
{
namespaceUri = namespaceUris.GetString(namespaceIndex);
}
nodeId = new Opc.Ua.ExpandedNodeId(nodeId.Identifier, 0, namespaceUri, serverIndex);
return(nodeId);
}
nodeId = new Opc.Ua.ExpandedNodeId(nodeId.Identifier, namespaceIndex, null, 0);
return(nodeId);
}
/// <summary cref="ITypeTable.FindSuperType(ExpandedNodeId)" />
public NodeId FindSuperType(ExpandedNodeId typeId)
{
if (NodeId.IsNull(typeId) || typeId.ServerIndex != 0)
{
return NodeId.Null;
}
NodeId localId = ExpandedNodeId.ToNodeId(typeId, m_namespaceUris);
if (localId == null)
{
return NodeId.Null;
}
lock (m_lock)
{
TypeInfo typeInfo = null;
if (!m_nodes.TryGetValue(localId, out typeInfo))
{
return NodeId.Null;
}
if (typeInfo.SuperType != null)
{
return typeInfo.SuperType.NodeId;
}
return NodeId.Null;
}
}
/// <summary>
/// Initializes the node id with an identifier.
/// </summary>
public NodeId(ExpandedNodeId nodeId)
{
if (!NodeId.IsNull(nodeId))
{
Identifier = nodeId.Identifier;
}
}
/// <summary>
/// Displays the dialog.
/// </summary>
public ExpandedNodeId ShowDialog(Session session, ExpandedNodeId value)
{
if (session == null) throw new ArgumentNullException("session");
m_browser = new Browser(session);
m_rootId = Objects.RootFolder;
Identifier = ExpandedNodeId.ToNodeId(value, session.NamespaceUris);
Popup myPopup = new Popup();
myPopup.Child = this;
myPopup.IsOpen = true;
return this.Identifier;
}
/// <summary cref="ITypeTable.IsKnown(ExpandedNodeId)" />
public bool IsKnown(ExpandedNodeId typeId)
{
if (NodeId.IsNull(typeId) || typeId.ServerIndex != 0)
{
return false;
}
NodeId localId = ExpandedNodeId.ToNodeId(typeId, m_namespaceUris);
if (localId == null)
{
return false;
}
lock (m_lock)
{
return m_nodes.ContainsKey(localId);
}
}
/// <summary>
/// Serializes the value using XML and stores it in the extension object.
/// </summary>
public ExtensionObject(ExpandedNodeId typeId, object value)
{
TypeId = typeId;
StringBuilder buffer = new StringBuilder();
using (XmlWriter writer = XmlWriter.Create(buffer))
{
DataContractSerializer serializer = new DataContractSerializer(value.GetType());
serializer.WriteObject(writer, value);
}
XmlDocument document = new XmlDocument();
document.InnerXml = buffer.ToString();
ExtensionObjectBody body = new ExtensionObjectBody();
body.Nodes = new XmlNode[] { document.DocumentElement };
Body = body;
}
/// <summary>
/// Constructs a reference to an external target.
/// </summary>
public NodeStateReference(NodeId referenceTypeId, bool isInverse, ExpandedNodeId targetId)
{
m_referenceTypeId = referenceTypeId;
m_isInverse = isInverse;
m_targetId = targetId;
m_target = null;
}
/// <summary>
/// Imports a ExpandedNodeId
/// </summary>
private Opc.Ua.ExpandedNodeId ImportExpandedNodeId(string source, NamespaceTable namespaceUris, StringTable serverUris)
{
if (String.IsNullOrEmpty(source))
{
return Opc.Ua.ExpandedNodeId.Null;
}
// parse the node.
Opc.Ua.ExpandedNodeId nodeId = Opc.Ua.ExpandedNodeId.Parse(source);
if (nodeId.ServerIndex <= 0 && nodeId.NamespaceIndex <= 0 && String.IsNullOrEmpty(nodeId.NamespaceUri))
{
return nodeId;
}
uint serverIndex = ImportServerIndex(nodeId.ServerIndex, serverUris);
ushort namespaceIndex = ImportNamespaceIndex(nodeId.NamespaceIndex, namespaceUris);
if (serverIndex > 0)
{
string namespaceUri = nodeId.NamespaceUri;
if (String.IsNullOrEmpty(nodeId.NamespaceUri))
{
namespaceUri = namespaceUris.GetString(namespaceIndex);
}
nodeId = new Opc.Ua.ExpandedNodeId(nodeId.Identifier, 0, namespaceUri, serverIndex);
return nodeId;
}
nodeId = new Opc.Ua.ExpandedNodeId(nodeId.Identifier, namespaceIndex, null, 0);
return nodeId;
}
/// <summary>
/// Initializes the reference.
/// </summary>
/// <param name="referenceTypeId">The reference type id.</param>
/// <param name="isInverse">if set to <c>true</c> [is inverse].</param>
/// <param name="targetId">The target id.</param>
public ReferenceNode(NodeId referenceTypeId, bool isInverse, ExpandedNodeId targetId)
{
m_referenceTypeId = referenceTypeId;
m_isInverse = isInverse;
m_targetId = targetId;
}
/// <summary>
/// Creates an operand that references a component/property of a type.
/// </summary>
public SimpleAttributeOperand(
FilterContext context,
ExpandedNodeId typeDefinitionId,
string browsePath,
uint attributeId,
string indexRange)
{
m_typeDefinitionId = ExpandedNodeId.ToNodeId(typeDefinitionId, context.NamespaceUris);
m_browsePath = Parse(browsePath);
m_attributeId = attributeId;
m_indexRange = indexRange;
}
/// <summary>
/// Recursively collects the nodes within a type hierarchy.
/// </summary>
private void GetInstanceHierarchyForType(
HierarchyBrowsePath parent,
ExpandedNodeId instanceId,
InstanceDeclarationHierarchy hierarchy)
{
// the instance must be local to the address space.
ILocalNode instance = m_nodes.Find(instanceId) as ILocalNode;
if (instance == null)
{
return;
}
// must be an object, variable or method.
if ((instance.NodeClass & (NodeClass.Object | NodeClass.Variable | NodeClass.Method)) == 0)
{
return;
}
// get the naming rule.
NamingRule namingRule = GetNamingRule(instance.ModellingRule);
// only include instances with unique browse names in the hierarchy.
if (namingRule != NamingRule.Unique && namingRule != NamingRule.UniqueOptional)
{
return;
}
// construct the browse path that identifies the node.
string browsePath = null;
if (parent.BrowsePath == "/")
{
browsePath = Utils.Format("/{0}", instance.BrowseName);
}
else
{
browsePath = Utils.Format("{0}/{1}", parent.BrowsePath, instance.BrowseName);
}
// check if the browse path already exists in the hierarchy.
HierarchyBrowsePath child = null;
if (!hierarchy.BrowsePaths.TryGetValue(browsePath, out child))
{
child = new HierarchyBrowsePath();
child.BrowsePath = browsePath;
child.DeclarationId = instance.NodeId;
child.InstanceId = null;
child.IsModelParent = false;
child.IsOptional = namingRule != NamingRule.Unique;
// add new browse path to hierarchy.
hierarchy.BrowsePaths.Add(browsePath, child);
}
// override any declaration specified in a supertype.
child.DeclarationId = instance.NodeId;
// check if node has been processed via another path.
HierarchyBrowsePath alternatePath = null;
if (hierarchy.Declarations.TryGetValue(instance.NodeId, out alternatePath))
{
// keep the model parent path as the primary path.
if (!alternatePath.IsModelParent && child.IsModelParent)
{
hierarchy.Declarations[instance.NodeId] = child;
}
// nothing more to do since node has been processed once.
return;
}
// save child.
hierarchy.Declarations.Add(instance.NodeId, child);
// follow children.
foreach (IReference reference in instance.References.Find(ReferenceTypeIds.HierarchicalReferences, false, true, m_nodes.TypeTree))
{
GetInstanceHierarchyForType(child, reference.TargetId, hierarchy);
}
}
/// <summary>
/// Recursively builds the full inhierited type hierarchy starting with the top-level type.
/// </summary>
private void GetInstanceHierarchyForType(ExpandedNodeId typeId, InstanceDeclarationHierarchy hierarchy)
{
// the type must be local to the address space.
ILocalNode type = m_nodes.Find(typeId) as ILocalNode;
if (type == null)
{
throw ServiceResultException.Create(
StatusCodes.BadNodeIdUnknown,
"The type is not in the local address space.\r\nNodeId = {0}",
typeId);
}
// must be an object or variable type.
if ((type.NodeClass & (NodeClass.ObjectType | NodeClass.VariableType)) == 0)
{
throw ServiceResultException.Create(
StatusCodes.BadNodeClassInvalid,
"The type node is not an ObjectType or VariableType.\r\nNodeId = {0}\r\nNodeClass = {1}",
typeId,
type.NodeClass);
}
// find hierarchy in supertypes first.
foreach (IReference reference in type.References.Find(ReferenceTypeIds.HasSubtype, true, false, null))
{
GetInstanceHierarchyForType(reference.TargetId, hierarchy);
}
string browsePath = "/";
// check if the browse path already exists in the hierarchy.
HierarchyBrowsePath parent = null;
if (!hierarchy.BrowsePaths.TryGetValue(browsePath, out parent))
{
parent = new HierarchyBrowsePath();
parent.BrowsePath = browsePath;
parent.DeclarationId = type.NodeId;
parent.InstanceId = null;
parent.IsModelParent = true;
parent.IsOptional = false;
// add new browse path to hierarchy.
hierarchy.BrowsePaths.Add(browsePath, parent);
}
// override any declaration specified in a supertype.
parent.DeclarationId = type.NodeId;
hierarchy.Declarations[type.NodeId] = parent;
// follow hierarchial references to nodes with a naming rule of unique or unique optional.
foreach (IReference reference in type.References.Find(ReferenceTypeIds.HierarchicalReferences, false, true, m_nodes.TypeTree))
{
GetInstanceHierarchyForType(parent, reference.TargetId, hierarchy);
}
// update references defined in the type.
foreach (HierarchyBrowsePath declaration in hierarchy.Declarations.Values)
{
// the declaration must be local to the address space.
ILocalNode declarationNode = m_nodes.Find(declaration.DeclarationId) as ILocalNode;
if (declarationNode == null)
{
continue;
}
// process all references.
foreach (IReference reference in declarationNode.References)
{
UpdateReferenceDeclaration(declaration, reference, hierarchy);
}
}
}
/// <summary>
/// Creates an operand that references a component/property of a type.
/// </summary>
/// <param name="context">The context.</param>
/// <param name="typeDefinitionId">The type definition identifier.</param>
/// <param name="browsePath">The browse path.</param>
/// <param name="attributeId">The attribute identifier.</param>
/// <param name="indexRange">The index range.</param>
public AttributeOperand(
FilterContext context,
ExpandedNodeId typeDefinitionId,
string browsePath,
uint attributeId,
string indexRange)
{
m_nodeId = ExpandedNodeId.ToNodeId(typeDefinitionId, context.NamespaceUris);
m_browsePath = RelativePath.Parse(browsePath, context.TypeTree);
m_attributeId = attributeId;
m_indexRange = indexRange;
m_alias = null;
}
/// <summary>
/// Initializes the object with a <paramref name="typeId"/>.
/// </summary>
/// <param name="typeId">The type to copy and create an instance from</param>
public ExtensionObject(ExpandedNodeId typeId)
{
TypeId = typeId;
Body = null;
}
/// <summary>
/// Updates the nodeset string tables and returns a NodeId that references those tables.
/// </summary>
/// <param name="nodeId">The node identifier.</param>
/// <param name="targetNamespaceUris">The target namespace URIs.</param>
/// <param name="targetServerUris">The target server URIs.</param>
/// <param name="sourceNamespaceUris">The source namespace URIs.</param>
/// <param name="sourceServerUris">The source server URIs.</param>
/// <returns>A NodeId that references those tables.</returns>
private static ExpandedNodeId Translate(
ExpandedNodeId nodeId,
NamespaceTable targetNamespaceUris,
StringTable targetServerUris,
NamespaceTable sourceNamespaceUris,
StringTable sourceServerUris)
{
if (targetNamespaceUris == null)
{
throw new ArgumentNullException("targetNamespaceUris");
}
if (sourceNamespaceUris == null)
{
throw new ArgumentNullException("sourceNamespaceUris");
}
if (nodeId.ServerIndex > 0)
{
if (targetServerUris == null)
{
throw new ArgumentNullException("targetServerUris");
}
if (sourceServerUris == null)
{
throw new ArgumentNullException("sourceServerUris");
}
}
if (NodeId.IsNull(nodeId))
{
return(nodeId);
}
if (!nodeId.IsAbsolute)
{
return(Translate((NodeId)nodeId, targetNamespaceUris, sourceNamespaceUris));
}
string namespaceUri = nodeId.NamespaceUri;
if (nodeId.ServerIndex > 0)
{
if (String.IsNullOrEmpty(namespaceUri))
{
namespaceUri = sourceNamespaceUris.GetString(nodeId.NamespaceIndex);
}
string serverUri = sourceServerUris.GetString(nodeId.ServerIndex);
int index = targetServerUris.GetIndex(serverUri);
if (index == -1)
{
index = targetServerUris.Append(serverUri);
}
return(new ExpandedNodeId(new NodeId(nodeId.Identifier, 0), namespaceUri, (uint)index));
}
ushort namespaceIndex = 0;
if (!String.IsNullOrEmpty(namespaceUri))
{
int index = targetNamespaceUris.GetIndex(namespaceUri);
if (index == -1)
{
index = targetNamespaceUris.Append(namespaceUri);
}
namespaceIndex = (ushort)index;
}
return(new NodeId(nodeId.Identifier, namespaceIndex));
}
/// <summary>
/// Updates the specified string tables and returns a NodeId that references those tables.
/// </summary>
/// <param name="nodeId">The node identifier.</param>
/// <param name="namespaceUris">The namespace URIs.</param>
/// <param name="serverUris">The server URIs.</param>
/// <returns>A NodeId that references those tables.</returns>
public ExpandedNodeId Import(ExpandedNodeId nodeId, NamespaceTable namespaceUris, StringTable serverUris)
{
return(Translate(nodeId, namespaceUris, serverUris, m_namespaceUris, m_serverUris));
}
/// <summary>
/// Adds a node to the type table if it is a type and does not already exist. If it exists references are updated.
/// </summary>
/// <param name="node">The node.</param>
public void Add(ILocalNode node)
{
// ignore null.
if (node == null || NodeId.IsNull(node.NodeId))
{
return;
}
// ignore non-types.
if ((node.NodeClass & (NodeClass.ObjectType | NodeClass.VariableType | NodeClass.ReferenceType | NodeClass.DataType)) == 0)
{
return;
}
NodeId localsuperTypeId = null;
// find the supertype.
ExpandedNodeId superTypeId = node.References.FindTarget(ReferenceTypeIds.HasSubtype, true, false, null, 0);
if (superTypeId != null)
{
localsuperTypeId = ExpandedNodeId.ToNodeId(superTypeId, m_namespaceUris);
if (localsuperTypeId == null)
{
throw ServiceResultException.Create(StatusCodes.BadNodeIdInvalid, "A valid supertype identifier is required.");
}
}
lock (m_lock)
{
// lookup the supertype.
TypeInfo superTypeInfo = null;
if (localsuperTypeId != null)
{
if (!m_nodes.TryGetValue(localsuperTypeId, out superTypeInfo))
{
throw ServiceResultException.Create(StatusCodes.BadNodeIdInvalid, "A valid supertype identifier is required.");
}
}
// create the type info.
TypeInfo typeInfo = null;
if (!m_nodes.TryGetValue(node.NodeId, out typeInfo))
{
typeInfo = new TypeInfo();
m_nodes.Add(node.NodeId, typeInfo);
}
// update the info.
typeInfo.NodeId = node.NodeId;
typeInfo.SuperType = superTypeInfo;
typeInfo.Deleted = false;
// add to supertype.
if (superTypeInfo != null)
{
superTypeInfo.AddSubType(typeInfo);
}
// remove the encodings.
if (typeInfo.Encodings != null)
{
foreach (NodeId encoding in typeInfo.Encodings)
{
m_encodings.Remove(encoding);
}
}
// any new encodings.
IList <IReference> encodings = node.References.Find(ReferenceTypeIds.HasEncoding, false, false, null);
if (encodings.Count > 0)
{
typeInfo.Encodings = new NodeId[encodings.Count];
for (int ii = 0; ii < encodings.Count; ii++)
{
typeInfo.Encodings[ii] = ExpandedNodeId.ToNodeId(encodings[ii].TargetId, m_namespaceUris);
m_encodings[typeInfo.Encodings[ii]] = typeInfo;
}
}
// add reference type.
if ((node.NodeClass & NodeClass.ReferenceType) != 0)
{
if (!QualifiedName.IsNull(typeInfo.BrowseName))
{
m_referenceTypes.Remove(typeInfo.BrowseName);
}
typeInfo.BrowseName = node.BrowseName;
m_referenceTypes[node.BrowseName] = typeInfo;
}
}
}
/// <summary>
/// Adds a set of nodes to the table.
/// </summary>
/// <param name="nodeSet">The node set.</param>
/// <param name="externalReferences">The external references.</param>
/// <returns></returns>
public List <Node> Import(NodeSet nodeSet, IDictionary <NodeId, IList <IReference> > externalReferences)
{
List <Node> importedNodes = new List <Node>();
if (nodeSet == null)
{
return(importedNodes);
}
// add the nodes.
foreach (Node nodeToImport in nodeSet.Nodes)
{
// ignore empty nodes.
if (nodeToImport == null || NodeId.IsNull(nodeToImport.NodeId))
{
continue;
}
Node node = nodeSet.Copy(nodeToImport, m_namespaceUris, m_serverUris);
// assign a browse name.
if (QualifiedName.IsNull(node.BrowseName))
{
node.BrowseName = new QualifiedName(node.NodeId.ToString(), 1);
}
// assign a display name.
if (LocalizedText.IsNullOrEmpty(node.DisplayName))
{
node.DisplayName = new LocalizedText(node.BrowseName.Name);
}
// index references (the node ids in the references were translated by the Copy() call above).
foreach (ReferenceNode reference in node.References)
{
// ignore invalid references.
if (NodeId.IsNull(reference.ReferenceTypeId) || NodeId.IsNull(reference.TargetId))
{
continue;
}
// ignore missing targets.
ExpandedNodeId targetId = reference.TargetId;
if (NodeId.IsNull(targetId))
{
continue;
}
// index reference.
node.ReferenceTable.Add(reference.ReferenceTypeId, reference.IsInverse, targetId);
// see if a remote node needs to be created.
if (targetId.ServerIndex != 0)
{
RemoteNode remoteNode = Find(targetId) as RemoteNode;
if (remoteNode == null)
{
remoteNode = new RemoteNode(this, targetId);
InternalAdd(remoteNode);
}
remoteNode.AddRef();
}
}
// clear imported references.
node.References.Clear();
// add the node.
InternalAdd(node);
importedNodes.Add(node);
}
// import the nodes.
foreach (Node node in importedNodes)
{
// ignore invalid nodes.
if (node == null || NodeId.IsNull(node.NodeId))
{
continue;
}
// add reverse references.
foreach (IReference reference in node.ReferenceTable)
{
Node targetNode = Find(reference.TargetId) as Node;
if (targetNode == null)
{
if (reference.TargetId.ServerIndex != 0)
{
continue;
}
// return the reverse reference to a node outside the table.
if (externalReferences != null)
{
NodeId targetId = ExpandedNodeId.ToNodeId(reference.TargetId, m_namespaceUris);
if (targetId == null)
{
continue;
}
IList <IReference> referenceList = null;
if (!externalReferences.TryGetValue(targetId, out referenceList))
{
externalReferences[targetId] = referenceList = new List <IReference>();
}
ReferenceNode reverseReference = new ReferenceNode();
reverseReference.ReferenceTypeId = reference.ReferenceTypeId;
reverseReference.IsInverse = !reference.IsInverse;
reverseReference.TargetId = node.NodeId;
referenceList.Add(reverseReference);
}
continue;
}
// type definition and modelling rule references are one way.
if (reference.ReferenceTypeId != ReferenceTypeIds.HasTypeDefinition && reference.ReferenceTypeId != ReferenceTypeIds.HasModellingRule)
{
targetNode.ReferenceTable.Add(reference.ReferenceTypeId, !reference.IsInverse, node.NodeId);
}
}
// see if it is a type.
if (m_typeTree != null)
{
m_typeTree.Add(node);
}
}
return(importedNodes);
}
/// <summary>
/// Returns a list of references to the specified target.
/// </summary>
/// <param name="targetId">The target identifier.</param>
/// <returns>A list of references to the specified target.</returns>
public IList <IReference> FindReferencesToTarget(ExpandedNodeId targetId)
{
return(m_references.FindReferencesToTarget(targetId));
}
/// <summary>
/// Checks if the node id is null.
/// </summary>
public static bool IsNull(ExpandedNodeId nodeId)
{
if (nodeId == null || String.IsNullOrEmpty(nodeId.Identifier))
{
return true;
}
return false;
}
/// <summary>
/// Removes the reference from the node.
/// </summary>
/// <param name="referenceTypeId">The reference type identifier.</param>
/// <param name="isInverse">if set to <c>true</c> this is inverse reference.</param>
/// <param name="targetId">The target identifier.</param>
/// <returns>The result of removal.</returns>
public bool Remove(NodeId referenceTypeId, bool isInverse, ExpandedNodeId targetId)
{
return(m_references.Remove(new ReferenceNode(referenceTypeId, isInverse, targetId)));
}
/// <summary>
/// Initializes the object with an encodeable object.
/// </summary>
/// <param name="typeId">The type describing the body</param>
/// <param name="body">The underlying data/body to wrap</param>
/// <remarks>
/// Initializes the object with an encodeable object.
/// </remarks>
public ExtensionObject(ExpandedNodeId typeId, object body)
{
TypeId = typeId;
Body = body;
}
/// <summary>
/// Converts a value to a ExpandedNodeId
/// </summary>
private static object ToExpandedNodeId(object value, BuiltInType sourceType)
{
// check for array conversions.
Array array = value as Array;
if (array != null)
{
ExpandedNodeId[] output = new ExpandedNodeId[array.Length];
for (int ii = 0; ii < array.Length; ii++)
{
output[ii] = (ExpandedNodeId)Cast(array.GetValue(ii), BuiltInType.ExpandedNodeId);
}
return output;
}
// handle for supported conversions.
switch (sourceType)
{
case BuiltInType.ExpandedNodeId:
{
return (ExpandedNodeId)value;
}
case BuiltInType.NodeId:
{
return (ExpandedNodeId)(NodeId)value;
}
case BuiltInType.String:
{
return ExpandedNodeId.Parse((string)value);
}
}
// conversion not supported.
return null;
}
/// <summary>
/// Returns true if the node is in the table.
/// </summary>
/// <param name="nodeId">The node identifier.</param>
/// <returns></returns>
public bool Exists(ExpandedNodeId nodeId)
{
return(InternalFind(nodeId) != null);
}
/// <summary>
/// Removes a subtype.
/// </summary>
/// <param name="typeId">The type identifier.</param>
public void Remove(ExpandedNodeId typeId)
{
if (NodeId.IsNull(typeId) || typeId.ServerIndex != 0)
{
return;
}
NodeId localId = ExpandedNodeId.ToNodeId(typeId, m_namespaceUris);
if (localId == null)
{
return;
}
lock (m_lock)
{
// remove type.
TypeInfo typeInfo = null;
if (!m_nodes.TryGetValue(localId, out typeInfo))
{
return;
}
m_nodes.Remove(localId);
// setting the flag to deleted ensures references from subtypes are not broken.
typeInfo.Deleted = true;
// remove from subtype list.
if (typeInfo.SuperType != null)
{
typeInfo.SuperType.RemoveSubType(localId);
}
// remove encodings.
if (typeInfo.Encodings != null)
{
for (int ii = 0; ii < typeInfo.Encodings.Length; ii++)
{
m_encodings.Remove(typeInfo.Encodings[ii]);
}
}
// remove reference type.
if (!QualifiedName.IsNull(typeInfo.BrowseName))
{
m_referenceTypes.Remove(typeInfo.BrowseName);
}
}
}
/// <summary>
/// Finds a node in the node set.
/// </summary>
/// <param name="nodeId">The node identifier.</param>
/// <returns>Returns null if the node does not exist.</returns>
public INode Find(ExpandedNodeId nodeId)
{
return(InternalFind(nodeId));
}
/// <summary>
/// Creates an operand that references a component/property of a type.
/// </summary>
public SimpleAttributeOperand(
FilterContext context,
ExpandedNodeId typeId,
IList<QualifiedName> browsePath)
{
m_typeDefinitionId = ExpandedNodeId.ToNodeId(typeId, context.NamespaceUris);
m_browsePath = new QualifiedNameCollection(browsePath);
m_attributeId = Attributes.Value;
m_indexRange = null;
}
/// <summary>
/// Compares the current instance to the object.
/// </summary>
/// <remarks>
/// Compares the current instance to the object.
/// </remarks>
public int CompareTo(object obj)
{
// check for null.
if (Object.ReferenceEquals(obj, null))
{
return(-1);
}
// check for reference comparisons.
if (Object.ReferenceEquals(this, obj))
{
return(0);
}
// just compare node ids.
if (!this.IsAbsolute)
{
if (this.m_nodeId != null)
{
return(this.m_nodeId.CompareTo(obj));
}
}
NodeId nodeId = obj as NodeId;
// check for expanded node ids.
ExpandedNodeId expandedId = obj as ExpandedNodeId;
if (expandedId != null)
{
if (this.IsNull && expandedId.IsNull)
{
return(0);
}
if (this.ServerIndex != expandedId.ServerIndex)
{
return(this.ServerIndex.CompareTo(expandedId.ServerIndex));
}
if (this.NamespaceUri != expandedId.NamespaceUri)
{
if (this.NamespaceUri != null)
{
return(String.CompareOrdinal(NamespaceUri, expandedId.NamespaceUri));
}
return(-1);
}
nodeId = expandedId.m_nodeId;
}
// check for null.
if (this.m_nodeId != null)
{
return(this.m_nodeId.CompareTo(nodeId));
}
// compare node ids.
return((nodeId == null) ? 0 : -1);
}
/// <summary>
/// Returns true if the reference exist.
/// </summary>
/// <param name="referenceTypeId">The reference type id.</param>
/// <param name="isInverse">if set to <c>true</c> [is inverse].</param>
/// <param name="targetId">The target id.</param>
/// <returns>True if the reference exist.</returns>
public bool ReferenceExists(
NodeId referenceTypeId,
bool isInverse,
ExpandedNodeId targetId)
{
return ReferenceTable.Exists(referenceTypeId, isInverse, targetId, false, null);
}
public bool WriteUDT(List <string> opcNodes, List <object> values, out List <bool> status)
{
bool ret = false;
try
{
if (opcNodes.Count != values.Count)
{
throw new Exception("opcNodes.Count != values.Count");
}
int count = opcNodes.Count;
status = new List <bool>(count);
List <Type> types = new List <Type>(count);
List <NodeId> nodeIds = new List <NodeId>(count);
DiagnosticInfoCollection diags;
StatusCodeCollection statusCodes;
WriteValueCollection writeValues = new WriteValueCollection(count);
for (int i = 0; i < count; i++)
{
//Variant variant = new Variant(values[i]);
Opc.Ua.ExpandedNodeId expNodeId = new Opc.Ua.ExpandedNodeId(opcNodes[i]);
Opc.Ua.ExtensionObject extObj = new Opc.Ua.ExtensionObject(expNodeId, values[i]);
DataValue dataVal = new DataValue(extObj);
WriteValue writeVal = new WriteValue();
//writeVal.
writeVal.Value = dataVal;
writeVal.NodeId = new NodeId(opcNodes[i]);
writeVal.AttributeId = Attributes.Value;
writeValues.Add(writeVal);
}
ResponseHeader rh = session.Write(null, writeValues, out statusCodes, out diags);
ret = StatusCode.IsGood(rh.ServiceResult.Code);
for (int i = 0; i < count; i++)
{
//status[i] = StatusCode.IsGood(statusCodes[i]);
status.Add(StatusCode.IsGood(statusCodes[i]));
ret = ret & status[i];
}
}
catch (Exception ex)
{
ret = false;
status = null;
System.Diagnostics.Debug.WriteLine("Exception OpcUaClient::WriteValues " + ex.Message);
}
return(ret);
}
/// <summary>
/// Writes an ExpandedNodeId to the stream.
/// </summary>
public void WriteExpandedNodeId(string fieldName, ExpandedNodeId value)
{
if (NodeId.IsNull(value))
{
WriteSimpleField(fieldName, null, false);
return;
}
PushStructure(fieldName);
if (UseReversibleEncoding)
{
WriteSimpleField("Id", new NodeId(value.Identifier, value.NamespaceIndex).ToString(), true);
if (!String.IsNullOrEmpty(value.NamespaceUri))
{
WriteSimpleField("Uri", value.NamespaceUri, true);
}
if (value.ServerIndex > 0)
{
WriteSimpleField("ServerIndex", value.ServerIndex.ToString(), false);
}
}
else
{
WriteSimpleField("Id", new NodeId(value.Identifier, 0).ToString(), true);
WriteNamespaceIndex(value.NamespaceIndex);
WriteServerIndex(value.ServerIndex);
}
PopStructure();
}
private ServiceResult OnUserScalarValue2(
ISystemContext context,
MethodState method,
NodeId objectId,
DateTime dateTimeIn,
Uuid guidIn,
byte[] byteStringIn,
XmlElement xmlElementIn,
NodeId nodeIdIn,
ExpandedNodeId expandedNodeIdIn,
QualifiedName qualifiedNameIn,
LocalizedText localizedTextIn,
StatusCode statusCodeIn,
object variantIn,
ref DateTime dateTimeOut,
ref Uuid guidOut,
ref byte[] byteStringOut,
ref XmlElement xmlElementOut,
ref NodeId nodeIdOut,
ref ExpandedNodeId expandedNodeIdOut,
ref QualifiedName qualifiedNameOut,
ref LocalizedText localizedTextOut,
ref StatusCode statusCodeOut,
ref object variantOut)
{
dateTimeOut = dateTimeIn;
guidOut = guidIn;
byteStringOut = byteStringIn;
xmlElementOut = xmlElementIn;
nodeIdOut = nodeIdIn;
expandedNodeIdOut = expandedNodeIdIn;
qualifiedNameOut = qualifiedNameIn;
localizedTextOut = localizedTextIn;
statusCodeOut = statusCodeIn;
variantOut = variantIn;
return ServiceResult.Good;
}
/// <summary>
/// Adds a reference to target identified by its node id.
/// </summary>
public virtual void Add(NodeId referenceTypeId, bool isInverse, ExpandedNodeId targetId)
{
lock (DataLock)
{
m_references.Add(new NodeStateReference(referenceTypeId, isInverse, targetId));
}
}
/// <summary>
/// Adds a reference to target identified by its node id.
/// </summary>
public virtual void Add(NodeId referenceTypeId, bool isInverse, ExpandedNodeId targetId)
{
lock (DataLock) {
m_references.Add(new NodeStateReference(referenceTypeId, isInverse, targetId));
}
}
/// <summary>
/// This method is used to delete bi-directional references to nodes from other node managers.
/// </summary>
public virtual ServiceResult DeleteReference(
object sourceHandle,
NodeId referenceTypeId,
bool isInverse,
ExpandedNodeId targetId,
bool deleteBiDirectional)
{
lock (Lock)
{
// get the handle.
NodeHandle source = IsHandleInNamespace(sourceHandle);
if (source == null)
{
return StatusCodes.BadNodeIdUnknown;
}
// only support external references to nodes that are stored in memory.
if (!source.Validated || source.Node == null)
{
return StatusCodes.BadNotSupported;
}
// only support references to Source Areas.
source.Node.RemoveReference(referenceTypeId, isInverse, targetId);
if (deleteBiDirectional)
{
// check if the target is also managed by this node manager.
if (!targetId.IsAbsolute)
{
NodeHandle target = GetManagerHandle(m_systemContext, (NodeId)targetId, null);
if (target != null && target.Validated && target.Node != null)
{
target.Node.RemoveReference(referenceTypeId, !isInverse, source.NodeId);
}
}
}
return ServiceResult.Good;
}
}
/// <summary>
/// Reads the body extension object from the stream.
/// </summary>
public object ReadExtensionObjectBody(ExpandedNodeId typeId)
{
m_reader.MoveToContent();
// check for binary encoded body.
if (m_reader.LocalName == "ByteString" && m_reader.NamespaceURI == Namespaces.OpcUaXsd)
{
PushNamespace(Namespaces.OpcUaXsd);
byte[] bytes = ReadByteString("ByteString");
PopNamespace();
return bytes;
}
// check for empty body.
XmlDocument document = new XmlDocument();
if (m_reader.IsEmptyElement)
{
document.InnerXml = m_reader.ReadOuterXml();
return document.DocumentElement;
}
// lookup type.
IEncodeable encodeable = null;
Type systemType = m_context.Factory.GetSystemType(typeId);
// decode known type.
if (systemType != null)
{
PushNamespace(m_reader.NamespaceURI);
encodeable = ReadEncodeable(m_reader.LocalName, systemType);
PopNamespace();
return encodeable;
}
// return undecoded xml body.
document.InnerXml = m_reader.ReadOuterXml();
return document.DocumentElement;
}
/// <summary cref="ITypeTable.FindSubTypes(ExpandedNodeId)" />
public IList<NodeId> FindSubTypes(ExpandedNodeId typeId)
{
List<NodeId> subtypes = new List<NodeId>();
if (typeId == null)
{
return subtypes;
}
NodeId localId = ExpandedNodeId.ToNodeId(typeId, m_namespaceUris);
if (localId == null)
{
return subtypes;
}
lock (m_lock)
{
TypeInfo typeInfo = null;
if (m_nodes.TryGetValue(localId, out typeInfo))
{
typeInfo.GetSubtypes(subtypes);
}
return subtypes;
}
}
/// <summary>
/// Adds the reference to the node.
/// </summary>
/// <param name="referenceTypeId">The reference type identifier.</param>
/// <param name="isInverse">if set to <c>true</c> this is inverse reference.</param>
/// <param name="targetId">The target identifier.</param>
public void Add(NodeId referenceTypeId, bool isInverse, ExpandedNodeId targetId)
{
m_references[new ReferenceNode(referenceTypeId, isInverse, targetId)] = null;
}
private ServiceResult OnUserArrayValue2(
ISystemContext context,
MethodState method,
NodeId objectId,
DateTime[] dateTimeIn,
Uuid[] guidIn,
byte[][] byteStringIn,
XmlElement[] xmlElementIn,
NodeId[] nodeIdIn,
ExpandedNodeId[] expandedNodeIdIn,
QualifiedName[] qualifiedNameIn,
LocalizedText[] localizedTextIn,
StatusCode[] statusCodeIn,
Variant[] variantIn,
ref DateTime[] dateTimeOut,
ref Uuid[] guidOut,
ref byte[][] byteStringOut,
ref XmlElement[] xmlElementOut,
ref NodeId[] nodeIdOut,
ref ExpandedNodeId[] expandedNodeIdOut,
ref QualifiedName[] qualifiedNameOut,
ref LocalizedText[] localizedTextOut,
ref StatusCode[] statusCodeOut,
ref Variant[] variantOut)
{
dateTimeOut = dateTimeIn;
guidOut = guidIn;
byteStringOut = byteStringIn;
xmlElementOut = xmlElementIn;
nodeIdOut = nodeIdIn;
expandedNodeIdOut = expandedNodeIdIn;
qualifiedNameOut = qualifiedNameIn;
localizedTextOut = localizedTextIn;
statusCodeOut = statusCodeIn;
variantOut = variantIn;
return ServiceResult.Good;
}
/// <summary cref="ITypeTable.IsTypeOf(ExpandedNodeId, ExpandedNodeId)" />
public bool IsTypeOf(ExpandedNodeId subTypeId, ExpandedNodeId superTypeId)
{
if (NodeId.IsNull(subTypeId) || subTypeId.ServerIndex != 0)
{
return false;
}
if (NodeId.IsNull(superTypeId) || superTypeId.ServerIndex != 0)
{
return false;
}
// check for exact match.
if (subTypeId == superTypeId)
{
return true;
}
NodeId startId = ExpandedNodeId.ToNodeId(subTypeId, m_namespaceUris);
if (startId == null)
{
return false;
}
NodeId targetId = ExpandedNodeId.ToNodeId(superTypeId, m_namespaceUris);
if (targetId == null)
{
return false;
}
lock (m_lock)
{
TypeInfo typeInfo = null;
if (!m_nodes.TryGetValue(startId, out typeInfo))
{
return false;
}
return typeInfo.IsTypeOf(targetId);
}
}
/// <summary>
/// Reads an ExpandedNodeId from the stream.
/// </summary>
public ExpandedNodeId ReadExpandedNodeId(string fieldName)
{
ExpandedNodeId value = new ExpandedNodeId();
if (BeginField(fieldName, true))
{
PushNamespace(Namespaces.OpcUaXsd);
value.IdentifierText = ReadString("Identifier");
PopNamespace();
EndField(fieldName);
}
if (m_namespaceMappings != null && m_namespaceMappings.Length > value.NamespaceIndex)
{
value.SetNamespaceIndex(m_namespaceMappings[value.NamespaceIndex]);
}
if (m_serverMappings != null && m_serverMappings.Length > value.ServerIndex)
{
value.SetServerIndex(m_serverMappings[value.NamespaceIndex]);
}
return value;
}
/// <summary cref="ITypeTable.IsEncodingOf(ExpandedNodeId, ExpandedNodeId)" />
public bool IsEncodingOf(ExpandedNodeId encodingId, ExpandedNodeId datatypeId)
{
// check for invalid ids.
if (NodeId.IsNull(encodingId) || NodeId.IsNull(datatypeId))
{
return false;
}
NodeId localId = ExpandedNodeId.ToNodeId(encodingId, m_namespaceUris);
if (localId == null)
{
return false;
}
NodeId localTypeId = ExpandedNodeId.ToNodeId(datatypeId, m_namespaceUris);
if (localTypeId == null)
{
return false;
}
lock (m_lock)
{
// lookup the immediate basetype of the subtype.
TypeInfo typeInfo = null;
if (!m_encodings.TryGetValue(localId, out typeInfo))
{
return false;
}
// the encoding is a representation of the expected datatype id.
if (localTypeId == typeInfo.NodeId)
{
return true;
}
// check if the encoding is a representation of a subtype of the expected datatype id.
TypeInfo superTypeInfo = typeInfo.SuperType;
while (superTypeInfo != null)
{
if (!superTypeInfo.Deleted && superTypeInfo.NodeId == localTypeId)
{
return true;
}
superTypeInfo = superTypeInfo.SuperType;
}
// no match.
return false;
}
}
/// <summary>
/// Creates an operand that references a component/property of a type.
/// </summary>
/// <param name="context">The context.</param>
/// <param name="nodeId">The node identifier.</param>
/// <param name="relativePath">The relative path.</param>
public AttributeOperand(
FilterContext context,
ExpandedNodeId nodeId,
RelativePath relativePath)
{
m_nodeId = ExpandedNodeId.ToNodeId(nodeId, context.NamespaceUris);
m_browsePath = relativePath;
m_attributeId = Attributes.Value;
m_indexRange = null;
m_alias = null;
}
/// <summary cref="ITypeTable.FindDataTypeId(ExpandedNodeId)" />
public NodeId FindDataTypeId(ExpandedNodeId encodingId)
{
NodeId localId = ExpandedNodeId.ToNodeId(encodingId, m_namespaceUris);
if (localId == null)
{
return NodeId.Null;
}
lock (m_lock)
{
TypeInfo typeInfo = null;
if (!m_encodings.TryGetValue(localId, out typeInfo))
{
return NodeId.Null;
}
return typeInfo.NodeId;
}
}
/// <summary>
/// Writes an ExpandedNodeId to the stream.
/// </summary>
public void WriteExpandedNodeId(string fieldName, ExpandedNodeId value)
{
if (BeginField(fieldName, value == null, true))
{
PushNamespace(Namespaces.OpcUaXsd);
if (value != null)
{
ushort namespaceIndex = value.NamespaceIndex;
if (m_namespaceMappings != null && m_namespaceMappings.Length > namespaceIndex)
{
namespaceIndex = m_namespaceMappings[namespaceIndex];
}
uint serverIndex = value.ServerIndex;
if (m_serverMappings != null && m_serverMappings.Length > serverIndex)
{
serverIndex = m_serverMappings[serverIndex];
}
StringBuilder buffer = new StringBuilder();
ExpandedNodeId.Format(buffer, value.Identifier, value.IdType, namespaceIndex, value.NamespaceUri, serverIndex);
WriteString("Identifier", buffer.ToString());
}
PopNamespace();
EndField(fieldName);
}
}
/// <summary>
/// Adds an encoding for an existing data type.
/// </summary>
public bool AddEncoding(NodeId dataTypeId, ExpandedNodeId encodingId)
{
NodeId localId = ExpandedNodeId.ToNodeId(encodingId, m_namespaceUris);
if (localId == null)
{
return false;
}
lock (m_lock)
{
TypeInfo typeInfo = null;
if (!m_nodes.TryGetValue(dataTypeId, out typeInfo))
{
return false;
}
if (typeInfo.Encodings == null)
{
typeInfo.Encodings = new NodeId[] { localId };
}
else
{
NodeId[] encodings = new NodeId[typeInfo.Encodings.Length + 1];
System.Array.Copy(typeInfo.Encodings, encodings, typeInfo.Encodings.Length);
encodings[encodings.Length - 1] = localId;
typeInfo.Encodings = encodings;
}
m_encodings[localId] = typeInfo;
return true;
}
}
/// <summary>
/// Finds the service identified by the request type.
/// </summary>
protected ServiceDefinition FindService(ExpandedNodeId requestTypeId)
{
ServiceDefinition service = null;
if (!SupportedServices.TryGetValue(requestTypeId, out service))
{
throw ServiceResultException.Create(
StatusCodes.BadServiceUnsupported,
"'{0}' is an unrecognized service identifier.",
requestTypeId);
}
return service;
}
/// <summary>
/// Recursively collects the nodes within a type hierarchy.
/// </summary>
private void UpdateInstanceHierarchyWithInstance(
HierarchyBrowsePath parent,
ExpandedNodeId instanceId,
InstanceDeclarationHierarchy hierarchy)
{
INode instance = m_nodes.Find(instanceId) as INode;
// ignore instances not in the address space.
if (instance == null)
{
return;
}
// must be an object, variable or method.
if ((instance.NodeClass & (NodeClass.Object | NodeClass.Variable | NodeClass.Method)) == 0)
{
return;
}
// construct the browse path that identifies the node.
string browsePath = null;
if (parent.BrowsePath == "/")
{
browsePath = Utils.Format("/{0}", instance.BrowseName);
}
else
{
browsePath = Utils.Format("{0}/{1}", parent.BrowsePath, instance.BrowseName);
}
// check if the browse path exists in the hierarchy.
HierarchyBrowsePath child = null;
if (!hierarchy.BrowsePaths.TryGetValue(browsePath, out child))
{
return;
}
// update the instance.
child.InstanceId = instance.NodeId;
// check if already followed.
if (hierarchy.Instances.ContainsKey((NodeId)instance.NodeId))
{
return;
}
// save child.
hierarchy.Instances.Add((NodeId)instance.NodeId, instance);
// check for local node.
ILocalNode localInstance = instance as ILocalNode;
if (localInstance == null)
{
return;
}
// follow children.
foreach (IReference reference in localInstance.References.Find(ReferenceTypeIds.HierarchicalReferences, false, true, m_nodes.TypeTree))
{
UpdateInstanceHierarchyWithInstance(child, reference.TargetId, hierarchy);
}
}
