Opc.Ua.Com.ServerFactory.ParseUrl C# (CSharp) Method

        public ComServerDescription ParseUrl(Uri uri)
        {
            // parse path to find prog id and clsid.
            string progID = uri.LocalPath;
            string clsid  = null;

            while (progID.StartsWith("/"))
            {
                progID = progID.Substring(1);
            }

            int index = progID.IndexOf('/');

            if (index >= 0)
            {
                clsid  = progID.Substring(index+1);
                progID = progID.Substring(0, index);
            }

            // look up prog id if clsid not specified in the uri.
            Guid guid = Guid.Empty;

            if (String.IsNullOrEmpty(clsid))
            {
                // use OpcEnum to lookup the prog id.
                guid = CLSIDFromProgID(progID);

                // check if prog id is actually a clsid string.
                if (guid == Guid.Empty)
                {
                    clsid = progID;
                }
            }

            // convert CLSID to a GUID.
            if (guid == Guid.Empty)
            {
                try
                {
                    guid = new Guid(clsid);
                }
                catch (Exception e)
                {
                    throw ServiceResultException.Create(StatusCodes.BadCommunicationError, e, "COM server URI does not contain a valid CLSID or ProgID.");
                }
            }

            ComServerDescription server = new ComServerDescription();

            server.Url = uri.ToString();
            server.Clsid = guid;
            server.ProgId = progID;
            server.VersionIndependentProgId = server.ProgId;
            server.Description = progID;

			try
			{
				// fetch class details from the enumerator.
				string description  = null;
				string verIndProgID = null;

				m_server.GetClassDetails(
					ref guid, 
					out progID, 
					out description, 
					out verIndProgID);                
				
				// use version independent prog id if available.
				if (!String.IsNullOrEmpty(verIndProgID))
				{
                    progID = verIndProgID;
                }

                server.Url = uri.ToString();
                server.Clsid = guid;
                server.ProgId = progID;
                server.VersionIndependentProgId = verIndProgID;
                server.Description = description;
			}
			catch
			{
                server.Url = uri.ToString();
                server.Clsid = guid;
                server.ProgId = progID;
                server.VersionIndependentProgId = server.ProgId;
                server.Description = guid.ToString();
			}

			// return the server uri.
            return server;
        }

        /// <summary>
        /// Gets the available servers.
        /// </summary>
        /// <param name="factory">The factory.</param>
        /// <param name="specification">The specification.</param>
        private void GetAvailableServers(Opc.Ua.Com.ServerFactory factory, Specification specification)
        {
            Uri[] serverUrls = factory.GetAvailableServers(specification);

            for (int ii = 0; ii < serverUrls.Length; ii++)
            {
                ComServerDescription server = factory.ParseUrl(serverUrls[ii]);

                // don't wrap proxies.
                if (ConfigUtils.CLSID_UaComDaProxyServer == server.Clsid)
                {
                    continue;
                }

                if (ConfigUtils.CLSID_UaComAeProxyServer == server.Clsid)
                {
                    continue;
                }

                if (ConfigUtils.CLSID_UaComHdaProxyServer == server.Clsid)
                {
                    continue;
                }

                // don't wrap UA psuedo-servers.
                List <Guid> catids = ConfigUtils.GetImplementedCategories(server.Clsid);

                bool suppress = false;

                for (int jj = 0; jj < catids.Count; jj++)
                {
                    if (catids[jj] == ConfigUtils.CATID_PseudoComServers)
                    {
                        suppress = true;
                        break;
                    }
                }

                if (suppress)
                {
                    continue;
                }

                // assume regular COM server.
                ListViewItem item = new ListViewItem(server.ProgId);
                item.SubItems.Add(server.Description);
                item.SubItems.Add(specification.ToString());
                item.Tag = new Item(specification, server);

                ServersLV.Items.Add(item);
            }
        }