Opc.Ua.Com.Server.ComNamespaceMapper.GetLocalItemId C# (CSharp) Méthode

        public string GetLocalItemId(NodeId nodeId)
        {
            try
            {
                // check for null.
                if (NodeId.IsNull(nodeId))
                {
                    return null;
                }

                // check for the objects folder (use knowledge of the target to avoid calling the less efficient Equals() method).
                if (nodeId.IdType == IdType.Numeric && nodeId.NamespaceIndex == 0)
                {
                    if ((uint)nodeId.Identifier == Objects.ObjectsFolder)
                    {
                        return String.Empty;
                    }
                }

                // get the lcoal index.
                ushort namespaceIndex = GetLocalNamespaceIndex(nodeId.NamespaceIndex);

                // check if a mapping is required.
                if (namespaceIndex != nodeId.NamespaceIndex)
                {
                    // could happen if the server updates it namespace table.
                    if (namespaceIndex == UInt16.MaxValue)
                    {
                        return null;
                    }

                    nodeId = new NodeId(nodeId.Identifier, namespaceIndex);
                }

                // convert the node id to a string.
                string itemId = nodeId.ToString();

                // must remove ';' from item id since the CTT does not like them.
                #if !NO_CTT_HACK
                StringBuilder buffer = new StringBuilder(itemId.Length+2);

                for (int ii = 0; ii < itemId.Length; ii++)
                {
                    char ch = itemId[ii];

                    if (ch == '=')
                    {
                        buffer.Append('*');
                        continue;
                    }

                    if (ch == '*')
                    {
                        buffer.Append('*');
                        continue;
                    }

                    buffer.Append(ch);
                }

                itemId =  buffer.ToString();
                #endif

                return itemId;
            }
            catch (Exception)
            {
                // oops. probably a programming error.
                return null;
            }
        }
        #endregion