Opc.Ua.Com.Server.ComAeNamespaceMapper.IndexTypesFromServer C# (CSharp) Method

        private void IndexTypesFromServer(NodeId baseTypeId, int eventType)
        {
            // check if event type needs to be revised.
            if (baseTypeId == Opc.Ua.ObjectTypeIds.ConditionType)
            {
                eventType = OpcRcw.Ae.Constants.CONDITION_EVENT;
            }

            else if (baseTypeId == Opc.Ua.ObjectTypeIds.AuditEventType)
            {
                eventType = OpcRcw.Ae.Constants.TRACKING_EVENT;
            }

            else if (baseTypeId == Opc.Ua.ObjectTypeIds.BaseEventType)
            {
                eventType = OpcRcw.Ae.Constants.SIMPLE_EVENT;
            }

            // browse for subtypes.
            BrowseDescription nodeToBrowse = new BrowseDescription();
            nodeToBrowse.NodeId = baseTypeId;
            nodeToBrowse.BrowseDirection = BrowseDirection.Forward;
            nodeToBrowse.ReferenceTypeId = Opc.Ua.ReferenceTypeIds.HasSubtype;
            nodeToBrowse.IncludeSubtypes = false;
            nodeToBrowse.NodeClassMask = (uint)NodeClass.ObjectType;
            nodeToBrowse.ResultMask = (uint)(BrowseResultMask.BrowseName | BrowseResultMask.DisplayName | BrowseResultMask.NodeClass);

            ReferenceDescriptionCollection references = ComAeUtils.Browse(
                m_session,
                nodeToBrowse,
                false);

            for (int ii = 0; ii < references.Count; ii++)
            {
                // these types have t
                if (references[ii].NodeId.IsAbsolute)
                {
                    continue;
                }

                NodeId typeId = (NodeId)references[ii].NodeId;

                if (!m_eventTypes.ContainsKey(typeId))
                {
                    // collection the instances declared by the type.
                    List<AeEventAttribute> declarations = new List<AeEventAttribute>();
                    Dictionary<string, AeEventAttribute> map = new Dictionary<string, AeEventAttribute>();

                    ComAeUtils.CollectInstanceDeclarations(
                        m_session,
                        this,
                        (NodeId)references[ii].NodeId,
                        null,
                        declarations,
                        map);

                    AeEventCategory declaration = new AeEventCategory();
                    declaration.TypeId = (NodeId)references[ii].NodeId;
                    declaration.SuperTypeId = baseTypeId;
                    declaration.EventType = eventType;
                    declaration.Description = (LocalizedText.IsNullOrEmpty(references[ii].DisplayName)) ? references[ii].BrowseName.Name : references[ii].DisplayName.Text;
                    declaration.Attributes = declarations;
                    m_eventTypes[declaration.TypeId] = declaration;
                }

                // recursively look for subtypes.
                IndexTypesFromServer(typeId, eventType);
            }
        }