/// <summary>
/// Add an enum type defined in a binary schema dictionary.
/// </summary>
private void AddEnumTypes(
IComplexTypeBuilder complexTypeBuilder,
IList <Opc.Ua.Schema.Binary.TypeDescription> enumList,
IList <INode> enumerationTypes
)
{
foreach (var item in enumList)
{
Type newType = null;
DataTypeNode enumType = enumerationTypes.Where(node =>
node.BrowseName.Name == item.Name &&
(node.NodeId.NamespaceIndex == complexTypeBuilder.TargetNamespaceIndex ||
complexTypeBuilder.TargetNamespaceIndex == -1)).FirstOrDefault()
as DataTypeNode;
if (enumType != null)
{
// try dictionary enum definition
var enumeratedObject = item as Schema.Binary.EnumeratedType;
if (enumeratedObject != null)
{
// 1. use Dictionary entry
newType = complexTypeBuilder.AddEnumType(enumeratedObject);
}
if (newType == null)
{
var dataType = m_session.NodeCache.Find(enumType.NodeId) as DataTypeNode;
if (dataType != null)
{
if (dataType.DataTypeDefinition != null)
{
// 2. use DataTypeDefinition
newType = complexTypeBuilder.AddEnumType(enumType.BrowseName.Name, dataType.DataTypeDefinition);
}
else
{
// browse for EnumFields or EnumStrings property
var property = BrowseForSingleProperty(enumType.NodeId);
var enumArray = m_session.ReadValue(
ExpandedNodeId.ToNodeId(property.NodeId, m_session.NamespaceUris));
if (enumArray.Value is ExtensionObject[])
{
// 3. use EnumValues
newType = complexTypeBuilder.AddEnumType(enumType.BrowseName.Name, (ExtensionObject[])enumArray.Value);
}
else if (enumArray.Value is LocalizedText[])
{
// 4. use EnumStrings
newType = complexTypeBuilder.AddEnumType(enumType.BrowseName.Name, (LocalizedText[])enumArray.Value);
}
}
}
}
if (newType != null)
{
// match namespace and add to type factory
AddEncodeableType(enumType.NodeId, newType);
}
}
}
}
/// <summary>
/// Add an enum type defined in a DataType node.
/// </summary>
private Type AddEnumType(
IComplexTypeBuilder complexTypeBuilder,
DataTypeNode enumTypeNode
)
{
Type newType = null;
if (enumTypeNode != null)
{
string name = enumTypeNode.BrowseName.Name;
if (enumTypeNode.DataTypeDefinition != null)
{
// 1. use DataTypeDefinition
newType = complexTypeBuilder.AddEnumType(name, enumTypeNode.DataTypeDefinition);
}
else
{
// browse for EnumFields or EnumStrings property
var property = BrowseForSingleProperty(enumTypeNode.NodeId);
if (property != null)
{
var enumArray = m_session.ReadValue(
ExpandedNodeId.ToNodeId(property.NodeId,
m_session.NamespaceUris));
if (enumArray.Value is ExtensionObject[])
{
// 2. use EnumValues
newType = complexTypeBuilder.AddEnumType(name, (ExtensionObject[])enumArray.Value);
}
else if (enumArray.Value is LocalizedText[])
{
// 3. use EnumStrings
newType = complexTypeBuilder.AddEnumType(name, (LocalizedText[])enumArray.Value);
}
}
}
}
return(newType);
}