some static optimization (#832)

* no q builder if not params

* make http method static val

* header to readonly

* add missing change

* const to private

* fix url in header

Author: tg123

src/KubernetesClient.Basic/AbstractKubernetes.cs

@@ -10,6 +10,18 @@ namespace k8s
 {
     public abstract partial class AbstractKubernetes
     {
+        private static class HttpMethods
+        {
+            public static readonly HttpMethod Delete = HttpMethod.Delete;
+            public static readonly HttpMethod Get = HttpMethod.Get;
+            public static readonly HttpMethod Head = HttpMethod.Head;
+            public static readonly HttpMethod Options = HttpMethod.Options;
+            public static readonly HttpMethod Post = HttpMethod.Post;
+            public static readonly HttpMethod Put = HttpMethod.Put;
+            public static readonly HttpMethod Trace = HttpMethod.Trace;
+            public static readonly HttpMethod Patch = new HttpMethod("Patch");
+        }
+
         private sealed class QueryBuilder
         {
             private List<string> parameters = new List<string>();
@@ -101,7 +113,7 @@ private MediaTypeHeaderValue GetHeader(V1Patch body)
 
         protected abstract Task<HttpOperationResponse<T>> CreateResultAsync<T>(HttpRequestMessage httpRequest, HttpResponseMessage httpResponse, bool? watch, CancellationToken cancellationToken);
 
-        protected abstract HttpRequestMessage CreateRequest(string relativeUri, string method, IDictionary<string, IList<string>> customHeaders);
+        protected abstract HttpRequestMessage CreateRequest(string relativeUri, HttpMethod method, IReadOnlyDictionary<string, IReadOnlyList<string>> customHeaders);
 
         protected abstract Task<HttpResponseMessage> SendRequestRaw(string requestContent, HttpRequestMessage httpRequest, CancellationToken cancellationToken);
     }

src/KubernetesClient/Kubernetes.cs

@@ -99,10 +99,10 @@ protected override async Task<HttpOperationResponse<T>> CreateResultAsync<T>(Htt
             return result;
         }
 
-        protected override HttpRequestMessage CreateRequest(string relativeUri, string method, IDictionary<string, IList<string>> customHeaders)
+        protected override HttpRequestMessage CreateRequest(string relativeUri, HttpMethod method, IReadOnlyDictionary<string, IReadOnlyList<string>> customHeaders)
         {
             var httpRequest = new HttpRequestMessage();
-            httpRequest.Method = new HttpMethod(method);
+            httpRequest.Method = method;
             httpRequest.RequestUri = new Uri(BaseUri, relativeUri);
 #if NETSTANDARD2_1_OR_GREATER
             httpRequest.Version = HttpVersion.Version20;

src/LibKubernetesGenerator/UtilHelper.cs

@@ -1,4 +1,5 @@
 using System.Collections.Generic;
+using System.Collections.ObjectModel;
 using System.Linq;
 using NSwag;
 using Nustache.Core;
@@ -10,6 +11,7 @@ internal class UtilHelper : INustacheHelper
         public void RegisterHelper()
         {
             Helpers.Register(nameof(IfKindIs), IfKindIs);
+            Helpers.Register(nameof(IfListNotEmpty), IfListNotEmpty);
         }
 
         public static void IfKindIs(RenderContext context, IList<object> arguments, IDictionary<string, object> options,
@@ -34,5 +36,15 @@ public static void IfKindIs(RenderContext context, IList<object> arguments, IDic
                 }
             }
         }
+
+        public static void IfListNotEmpty(RenderContext context, IList<object> arguments, IDictionary<string, object> options,
+            RenderBlock fn, RenderBlock inverse)
+        {
+            var parameter = arguments?.FirstOrDefault() as ObservableCollection<OpenApiParameter>;
+            if (parameter?.Any() == true)
+            {
+                fn(null);
+            }
+        }
     }
 }

src/LibKubernetesGenerator/templates/IKubernetes.cs.template

@@ -1,5 +1,5 @@
 // <auto-generated>
-// Code generated by https://github.com/kubernetes-client/csharp/tree/master/gen/KubernetesGenerator
+// Code generated by https://github.com/kubernetes-client/csharp/tree/master/src/LibKubernetesGenerator
 // Changes may cause incorrect behavior and will be lost if the code is
 // regenerated.
 // </auto-generated>
@@ -38,7 +38,7 @@ namespace k8s
 {{#operation.parameters}}
             {{GetDotNetType .}} {{GetDotNetName . "true"}},
 {{/operation.parameters}}
-            IDictionary<string, IList<string>> customHeaders = null,
+            IReadOnlyDictionary<string, IReadOnlyList<string>> customHeaders = null,
             CancellationToken cancellationToken = default);
 
         {{/.}}

src/LibKubernetesGenerator/templates/Kubernetes.cs.template

@@ -1,5 +1,5 @@
 // <auto-generated>
-// Code generated by https://github.com/kubernetes-client/csharp/tree/master/gen/KubernetesGenerator
+// Code generated by https://github.com/kubernetes-client/csharp/tree/master/src/LibKubernetesGenerator
 // Changes may cause incorrect behavior and will be lost if the code is
 // regenerated.
 // </auto-generated>
@@ -23,7 +23,7 @@ namespace k8s
 {{#operation.parameters}}
             {{GetDotNetType .}} {{GetDotNetName . "true"}},
 {{/operation.parameters}}
-            IDictionary<string, IList<string>> customHeaders = null,
+            IReadOnlyDictionary<string, IReadOnlyList<string>> customHeaders = null,
             CancellationToken cancellationToken = default(CancellationToken))
         {
             var cts = CancellationTokenSource.CreateLinkedTokenSource(cancellationToken);
@@ -50,16 +50,18 @@ namespace k8s
             {{#IfGroupPathParamContainsGroup path}}
             url = url.Replace("apis//", "api/");
             {{/IfGroupPathParamContainsGroup}}
+            {{#IfListNotEmpty operation.parameters}}
             var q = new QueryBuilder();
             {{#operation.parameters}}
             {{#IfKindIs . "query"}}
             q.Append("{{name}}", {{GetDotNetName name}});
             {{/IfKindIs . "query"}}
             {{/operation.parameters}}
             url += q.ToString();
+            {{/IfListNotEmpty operation.parameters}}
 
             // Create HTTP transport
-            var httpRequest = CreateRequest(url, "{{Method}}", customHeaders);
+            var httpRequest = CreateRequest(url, HttpMethods.{{Method}}, customHeaders);
             {{#IfParamContains operation "body"}}
             var httpResponse = await SendRequest(body, httpRequest, cancellationToken);
             {{/IfParamContains operation "body"}}

src/LibKubernetesGenerator/templates/KubernetesExtensions.cs.template

@@ -1,5 +1,5 @@
 // <auto-generated>
-// Code generated by https://github.com/kubernetes-client/csharp/tree/master/gen/KubernetesGenerator
+// Code generated by https://github.com/kubernetes-client/csharp/tree/master/src/LibKubernetesGenerator
 // Changes may cause incorrect behavior and will be lost if the code is
 // regenerated.
 // </auto-generated>

src/LibKubernetesGenerator/templates/Model.cs.template

@@ -1,5 +1,5 @@
 // <auto-generated>
-// Code generated by https://github.com/kubernetes-client/csharp/tree/master/gen/KubernetesGenerator
+// Code generated by https://github.com/kubernetes-client/csharp/tree/master/src/LibKubernetesGenerator
 // Changes may cause incorrect behavior and will be lost if the code is
 // regenerated.
 // </auto-generated>

src/LibKubernetesGenerator/templates/ModelExtensions.cs.template

@@ -1,5 +1,5 @@
 // <auto-generated>
-// Code generated by https://github.com/kubernetes-client/csharp/tree/master/gen/KubernetesGenerator
+// Code generated by https://github.com/kubernetes-client/csharp/tree/master/src/LibKubernetesGenerator
 // Changes may cause incorrect behavior and will be lost if the code is regenerated.
 // </auto-generated>
 namespace k8s.Models