public UANodeConverter(string filename, NamespaceTable SessionNamespaceURIs)
{
using (Stream stream = new FileStream(filename, FileMode.Open)){
m_UANodeset = UANodeSet.Read(stream);
m_aliases = m_UANodeset.Aliases;
m_namespaceURIs = m_UANodeset.NamespaceUris;
out_nodeset = new List <Node>();
session_namespace = SessionNamespaceURIs;
}
}
static void Main(string[] args)
{
Console.WriteLine("Hello World!");
// Read OPC-UA NodesSet xml file and parse it into a UANodeSet object
string nodesetxmlfilepath = "..\\..\\assets\\miab10-nodeset2.xml";
Stream stream = new FileStream(nodesetxmlfilepath, FileMode.Open);
Opc.Ua.Export.UANodeSet nodeSet = Opc.Ua.Export.UANodeSet.Read(stream);
Dictionary <string, UANode> nodeDict = new Dictionary <string, UANode>();
foreach (var item in nodeSet.Items)
{
nodeDict.Add(item.NodeId, item);
}
if (nodeDict.ContainsKey("ns=2;s=Beijer.nsuri=TagProvider;s=Tags"))
{
UAObject tagsObject = nodeDict["ns=2;s=Beijer.nsuri=TagProvider;s=Tags"] as UAObject;
DTDLInterface di = new DTDLInterface();
di.Extends = null;
di.Id = "dtmi:opcfoundation:org:UA:MiaB:Tags;1";
var varRefs = Array.FindAll(tagsObject.References,
varNodeRef => varNodeRef.ReferenceType == "HasComponent" && varNodeRef.IsForward);
foreach (var item in varRefs)
{
UAVariable uaVar = nodeDict[item.Value] as UAVariable;
DTDLPropertyItem dpi = new DTDLPropertyItem();
string[] nodeIdParts = uaVar.NodeId.Split(';');
dpi.Name = nodeIdParts[2].Substring(2);
dpi.Schema = "integer";
di.Contents.Add(dpi);
}
Console.WriteLine("Hello World!");
JsonSerializerOptions options = new JsonSerializerOptions
{
WriteIndented = true,
PropertyNamingPolicy = JsonNamingPolicy.CamelCase,
IgnoreNullValues = true,
};
// This is a workaround for the lack of polymorphic serialization in System.Text.Json
// The suggested workaround in the docs (use object to declare the child item) did not work for me
// But this custom serializer does
options.Converters.Add(new HeterogenousListConverter <DTDLContentItem, List <DTDLContentItem> >());
string ts = JsonSerializer.Serialize(di, options);
System.IO.File.WriteAllText(".\\dtmi_opcfoundation_org_UA_MiaB-Tags-interface-1.json", ts);
}
}
public UANodeConverter(JObject config, NamespaceTable SessionNamespaceURIs)
{
_config = config.ToObject <nodesConfigWrapper>().nodesLoader;
using (Stream stream = new FileStream(_config.filename, FileMode.Open)){
m_UANodeset = UANodeSet.Read(stream);
m_aliases = m_UANodeset.Aliases;
m_namespaceURIs = m_UANodeset.NamespaceUris;
out_nodeset = new List <Node>();
session_namespace = SessionNamespaceURIs;
}
selector = new NodesSelector(_config);
}