refactor.

src/DotNetCore.CAP/Dashboard/GatewayProxy/GatewayProxyMiddleware.cs

@@ -86,19 +86,6 @@ namespace DotNetCore.CAP.Dashboard.GatewayProxy
             }
         }
 
-        private bool TryGetRemoteNode(string requestNodeId, out Node node)
-        {
-            var nodes = _discoveryProvider.GetNodes().GetAwaiter().GetResult();
-            node = nodes.FirstOrDefault(x => x.Id == requestNodeId);
-            return node != null;
-        }
-
-        private void SetDownStreamRequestUri(Node node, string requestPath)
-        {
-            var uriBuilder = new UriBuilder("http://", node.Address, node.Port, requestPath);
-            DownstreamRequest.RequestUri = uriBuilder.Uri;
-        }
-
         public async Task SetResponseOnHttpContext(HttpContext context, HttpResponseMessage response)
         {
             foreach (var httpResponseHeader in response.Content.Headers)
@@ -131,6 +118,19 @@ namespace DotNetCore.CAP.Dashboard.GatewayProxy
             }
         }
 
+        private bool TryGetRemoteNode(string requestNodeId, out Node node)
+        {
+            var nodes = _discoveryProvider.GetNodes().GetAwaiter().GetResult();
+            node = nodes.FirstOrDefault(x => x.Id == requestNodeId);
+            return node != null;
+        }
+
+        private void SetDownStreamRequestUri(Node node, string requestPath)
+        {
+            var uriBuilder = new UriBuilder("http://", node.Address, node.Port, requestPath);
+            DownstreamRequest.RequestUri = uriBuilder.Uri;
+        }
+
         private static void AddHeaderIfDoesntExist(HttpContext context, 
             KeyValuePair<string, IEnumerable<string>> httpResponseHeader)
         {

src/DotNetCore.CAP/Dashboard/GatewayProxy/IRequestMapper.Default.cs

@@ -36,6 +36,44 @@ namespace DotNetCore.CAP.Dashboard.GatewayProxy
             }
         }
 
+        private string BuildAbsolute(
+            string scheme,
+            HostString host,
+            PathString pathBase = new PathString(),
+            PathString path = new PathString(),
+            QueryString query = new QueryString(),
+            FragmentString fragment = new FragmentString())
+        {
+            if (scheme == null)
+            {
+                throw new ArgumentNullException(nameof(scheme));
+            }
+
+            var combinedPath = (pathBase.HasValue || path.HasValue) ? (pathBase + path).ToString() : "/";
+
+            var encodedHost = host.ToString();
+            var encodedQuery = query.ToString();
+            var encodedFragment = fragment.ToString();
+
+            // PERF: Calculate string length to allocate correct buffer size for StringBuilder.
+            var length = scheme.Length + SchemeDelimiter.Length + encodedHost.Length
+                + combinedPath.Length + encodedQuery.Length + encodedFragment.Length;
+
+            return new StringBuilder(length)
+                .Append(scheme)
+                .Append(SchemeDelimiter)
+                .Append(encodedHost)
+                .Append(combinedPath)
+                .Append(encodedQuery)
+                .Append(encodedFragment)
+                .ToString();
+        }
+
+        private string GetEncodedUrl(HttpRequest request)
+        {
+            return BuildAbsolute(request.Scheme, request.Host, request.PathBase, request.Path, request.QueryString);
+        }
+
         private async Task<HttpContent> MapContent(HttpRequest request)
         {
             if (request.Body == null)
@@ -64,7 +102,6 @@ namespace DotNetCore.CAP.Dashboard.GatewayProxy
         {
             foreach (var header in request.Headers)
             {
-                //todo get rid of if..
                 if (IsSupportedHeader(header))
                 {
                     requestMessage.Headers.TryAddWithoutValidation(header.Key, header.Value.ToArray());
@@ -88,60 +125,5 @@ namespace DotNetCore.CAP.Dashboard.GatewayProxy
         {
             return !_unsupportedHeaders.Contains(header.Key.ToLower());
         }
-
-        /// <summary>
-        /// Combines the given URI components into a string that is properly encoded for use in HTTP headers.
-        /// Note that unicode in the HostString will be encoded as punycode.
-        /// </summary>
-        /// <param name="scheme">http, https, etc.</param>
-        /// <param name="host">The host portion of the uri normally included in the Host header. This may include the port.</param>
-        /// <param name="pathBase">The first portion of the request path associated with application root.</param>
-        /// <param name="path">The portion of the request path that identifies the requested resource.</param>
-        /// <param name="query">The query, if any.</param>
-        /// <param name="fragment">The fragment, if any.</param>
-        /// <returns></returns>
-        public string BuildAbsolute(
-            string scheme,
-            HostString host,
-            PathString pathBase = new PathString(),
-            PathString path = new PathString(),
-            QueryString query = new QueryString(),
-            FragmentString fragment = new FragmentString())
-        {
-            if (scheme == null)
-            {
-                throw new ArgumentNullException(nameof(scheme));
-            }
-
-            var combinedPath = (pathBase.HasValue || path.HasValue) ? (pathBase + path).ToString() : "/";
-
-            var encodedHost = host.ToString();
-            var encodedQuery = query.ToString();
-            var encodedFragment = fragment.ToString();
-
-            // PERF: Calculate string length to allocate correct buffer size for StringBuilder.
-            var length = scheme.Length + SchemeDelimiter.Length + encodedHost.Length
-                + combinedPath.Length + encodedQuery.Length + encodedFragment.Length;
-
-            return new StringBuilder(length)
-                .Append(scheme)
-                .Append(SchemeDelimiter)
-                .Append(encodedHost)
-                .Append(combinedPath)
-                .Append(encodedQuery)
-                .Append(encodedFragment)
-                .ToString();
-        }
-
-        /// <summary>
-        /// Returns the combined components of the request URL in a fully escaped form suitable for use in HTTP headers
-        /// and other HTTP operations.
-        /// </summary>
-        /// <param name="request">The request to assemble the uri pieces from.</param>
-        /// <returns></returns>
-        public string GetEncodedUrl(HttpRequest request)
-        {
-            return BuildAbsolute(request.Scheme, request.Host, request.PathBase, request.Path, request.QueryString);
-        }
     }
 }
\ No newline at end of file

src/DotNetCore.CAP/Dashboard/Pages/NodePage.cs

@@ -29,7 +29,7 @@ namespace DotNetCore.CAP.Dashboard.Pages
                 if (_nodes == null)
                 {
                     _discoveryProvider = RequestServices.GetService<INodeDiscoveryProvider>();
-                    _nodes = _discoveryProvider.GetNodes().GetAwaiter().GetResult();
+                    _nodes = _discoveryProvider.GetNodes().GetAwaiter().GetResult();                    
                 }
                 return _nodes;
             }

src/DotNetCore.CAP/Dashboard/Pages/NodePage.cshtml

@@ -5,10 +5,6 @@
 @inherits RazorPage
 @{
     Layout = new LayoutPage(Strings.NodePage_Title);
-    //if (CurrentNodeId != null)
-    //{
-    //    Session.Set("cap_current_node",System.Text.Encoding.Default.GetBytes(CurrentNodeId));
-    //}
 }
 <div class="row">
     <div class="col-md-12">