/// <summary cref="NodeSource.CreateNode" />
protected override void CreateNode(NodeId parentId, NodeId referenceTypeId)
{
CheckNodeManagerState();
VariableTypeAttributes attributes = new VariableTypeAttributes();
attributes.SpecifiedAttributes = (uint)NodeAttributesMask.DisplayName;
attributes.DisplayName = DisplayName;
NodeManager.CreateVariableType(
parentId,
NodeId,
BrowseName,
attributes);
}
public NodeId CreateVariableType(
NodeId parentId,
NodeId nodeId,
QualifiedName browseName,
VariableTypeAttributes attributes)
{
return null;
}
/// <summary>
/// Creates an VariableType node in the address space.
/// </summary>
public NodeId CreateVariableType(
NodeId parentId,
NodeId nodeId,
QualifiedName browseName,
VariableTypeAttributes attributes)
{
try
{
m_lock.Enter();
// check for null node id.
if (NodeId.IsNull(nodeId))
{
nodeId = CreateUniqueNodeId();
}
// check if node id exists.
if (m_nodes.Exists(nodeId))
{
throw ServiceResultException.Create(StatusCodes.BadNodeIdExists, "NodeId '{0}' already exists.", nodeId);
}
// find parent.
IVariableType parent = GetManagerHandle(parentId) as IVariableType;
if (parent == null)
{
throw ServiceResultException.Create(StatusCodes.BadParentNodeIdInvalid, "Parent node '{0}' does not exist or is not an VariableType.", parentId);
}
// validate reference.
ValidateReference(parent, ReferenceTypeIds.HasSubtype, false, NodeClass.VariableType);
// validate browse name.
if (QualifiedName.IsNull(browseName))
{
throw ServiceResultException.Create(StatusCodes.BadBrowseNameInvalid, "BrowsName must not be empty.");
}
// create node.
VariableTypeNode node = new VariableTypeNode();
node.NodeId = nodeId;
node.NodeClass = NodeClass.VariableType;
node.BrowseName = browseName;
UpdateAttributes(node, attributes);
// Value
if (attributes != null && (attributes.SpecifiedAttributes & (uint)NodeAttributesMask.Value) != 0)
{
node.Value = attributes.Value;
}
else
{
node.Value = Variant.Null;
}
// DataType
if (attributes != null && (attributes.SpecifiedAttributes & (uint)NodeAttributesMask.DataType) != 0)
{
node.DataType = attributes.DataType;
}
else
{
node.DataType = DataTypes.BaseDataType;
}
// ValueRank
if (attributes != null && (attributes.SpecifiedAttributes & (uint)NodeAttributesMask.ValueRank) != 0)
{
node.ValueRank = attributes.ValueRank;
}
else
{
node.ValueRank = ValueRanks.Scalar;
}
// ArrayDimensions
if (attributes != null && (attributes.SpecifiedAttributes & (uint)NodeAttributesMask.ArrayDimensions) != 0)
{
node.ArrayDimensions = attributes.ArrayDimensions;
}
else
{
node.ArrayDimensions = null;
}
// IsAbstract
if (attributes != null && (attributes.SpecifiedAttributes & (uint)NodeAttributesMask.IsAbstract) != 0)
{
node.IsAbstract = attributes.IsAbstract;
}
else
{
node.IsAbstract = false;
}
// add reference from parent.
AddReference(parent, ReferenceTypeIds.HasSubtype, false, node, true);
// add node.
AddNode(node);
// return the new node id.
return node.NodeId;
}
finally
{
m_lock.Exit();
}
}
