/// <summary>
        /// Processes the request.
        /// </summary>
        /// <param name="context">The
        /// <see cref="IWebDavContext" /> object containing both the request and response
        /// objects to use.</param>
        /// <param name="store">The <see cref="IWebDavStore" /> that the <see cref="WebDavServer" /> is hosting.</param>
        public void ProcessRequest(IWebDavContext context, IWebDavStore store)
        {
            /***************************************************************************************************
            * Send the response
            ***************************************************************************************************/
            WindowsIdentity Identity   = (WindowsIdentity)Thread.GetData(Thread.GetNamedDataSlot(Constants.HttpUser));
            var             statusCode = WebDavStoreItemLock.UnLock(context.Request.Url, GetLockTokenHeader(context.Request), Identity.Name);

            context.SetStatusCode(statusCode);
        }
        /// <summary>
        /// Processes the request.
        /// </summary>
        /// <param name="server">The <see cref="WebDavServer" /> through which the request came in from the client.</param>
        /// <param name="context">The
        /// <see cref="IHttpListenerContext" /> object containing both the request and response
        /// objects to use.</param>
        /// <param name="store">The <see cref="IWebDavStore" /> that the <see cref="WebDavServer" /> is hosting.</param>
        /// <param name="response"></param>
        /// <param name="request"></param>
        protected override void OnProcessRequest(
            WebDavServer server,
            IHttpListenerContext context,
            IWebDavStore store,
            XmlDocument request,
            XmlDocument response)
        {
            if (!WebDavStoreItemLock.LockEnabled)
            {
                throw new WebDavNotImplementedException("Lock support disabled");
            }

            /***************************************************************************************************
            * Send the response
            ***************************************************************************************************/
            WindowsIdentity Identity     = (WindowsIdentity)Thread.GetData(Thread.GetNamedDataSlot(WebDavServer.HttpUser));
            var             unlockResult = WebDavStoreItemLock.UnLock(context.Request.Url, GetLockTokenHeader(context.Request), Identity.Name);

            IWebDavStoreCollection collection = GetParentCollection(server, store, context.Request.Url);

            try
            {
                var item = GetItemFromCollection(collection, context.Request.Url);
                if (item != null)
                {
                    //we already have an item
                    var resourceCanBeUnLocked = item.UnLock(Identity.Name);
                    if (!resourceCanBeUnLocked)
                    {
                        //TODO: decide what to do if the resource cannot be locked.
                    }
                }
            }
            catch (Exception ex)
            {
                WebDavServer.Log.Warn(
                    String.Format("Request unlock on a resource that does not exists: {0}", context.Request.Url), ex);
            }

            context.SendSimpleResponse(unlockResult);
        }