Opc.Ua.Com.Server.ComAe2Browser.FindRoot C# (CSharp) Method

        private AeBrowseElement FindRoot(string itemId, Stack<string> names)
        {
            // parse the item id looking for a known parent.
            AeBrowseElement root = null;
            string currentId = itemId;

            while (!String.IsNullOrEmpty(currentId))
            {
                string parentId = null;
                string itemName = currentId;

                int index = currentId.LastIndexOf('/');

                if (index >= 0)
                {
                    parentId = currentId.Substring(0, index);
                    itemName = currentId.Substring(index + 1);
                }

                // save time by using an intermediate parent if it has already been cached.
                if (!String.IsNullOrEmpty(parentId))
                {
                    if (m_cache.TryGetValue(parentId, out root))
                    {
                        names.Push(itemName);
                        break;
                    }
                }

                currentId = parentId;
                names.Push(itemName);
                root = null;
            }

            if (root == null)
            {
                root = m_cache[String.Empty];
            }

            return root;
        }