[Aspnetcore] Fix nullable warnings part 1

.github/workflows/samples-dotnet.yaml

@@ -15,8 +15,10 @@ on:
       - 'samples/client/petstore/csharp-netcore/OpenAPIClient-generichost-netcore**/'
       - 'samples/server/petstore/aspnetcore-6.0/**'
       - 'samples/server/petstore/aspnetcore-6.0-pocoModels/**'
+      - 'samples/server/petstore/aspnetcore-6.0-project4Models/**'
       - 'samples/server/petstore/aspnetcore-6.0-useSwashBuckle/**'
-      - 'samples/server/petstore/aspnetcore-6.0-useNewtonsoft/**'
+      - 'samples/server/petstore/aspnetcore-6.0-NewtonsoftFalse/**'
+      - 'samples/server/petstore/aspnetcore-6.0-nullableReferenceTypes/**'
 jobs:
   build:
     name: Build .Net projects
@@ -35,7 +37,8 @@ jobs:
           - samples/server/petstore/aspnetcore-6.0-pocoModels
           - samples/server/petstore/aspnetcore-6.0-project4Models
           - samples/server/petstore/aspnetcore-6.0-useSwashBuckle
-          - samples/server/petstore/aspnetcore-6.0-useNewtonsoft
+          - samples/server/petstore/aspnetcore-6.0-NewtonsoftFalse
+          - samples/server/petstore/aspnetcore-6.0-nullableReferenceTypes
     steps:
       - uses: actions/checkout@v3
       - uses: actions/[email protected]

bin/configs/aspnetcore-6.0-NewtonsoftFalse.yaml

@@ -1,5 +1,5 @@
 generatorName: aspnetcore
-outputDir: samples/server/petstore/aspnetcore-6.0-useNewtonsoft
+outputDir: samples/server/petstore/aspnetcore-6.0-NewtonsoftFalse
 inputSpec: modules/openapi-generator/src/test/resources/3_0/aspnetcore/petstore.yaml
 templateDir: modules/openapi-generator/src/main/resources/aspnetcore/3.0
 additionalProperties:

bin/configs/aspnetcore-6.0-nullableReferenceTypes.yaml

@@ -0,0 +1,9 @@
+generatorName: aspnetcore
+outputDir: samples/server/petstore/aspnetcore-6.0-nullableReferenceTypes
+inputSpec: modules/openapi-generator/src/test/resources/3_0/aspnetcore/petstore.yaml
+templateDir: modules/openapi-generator/src/main/resources/aspnetcore/3.0
+additionalProperties:
+  packageGuid: '{3C799344-F285-4669-8FD5-7ED9B795D5C5}'
+  aspnetCoreVersion: "6.0"
+  userSecretsGuid: 'cb87e868-8646-48ef-9bb6-344b537d0d37'
+  nullableReferenceTypes: true

modules/openapi-generator/src/main/resources/aspnetcore/3.0/typeConverter.mustache

@@ -21,7 +21,7 @@ namespace {{packageName}}.Converters
         /// <param name="context"></param>
         /// <param name="sourceType"></param>
         /// <returns></returns>
-        public override bool CanConvertFrom(ITypeDescriptorContext context, Type sourceType)
+        public override bool CanConvertFrom(ITypeDescriptorContext{{#nullableReferenceTypes}}?{{/nullableReferenceTypes}} context, Type sourceType)
         {
             return sourceType == typeof(string) || base.CanConvertFrom(context, sourceType);
         }
@@ -33,15 +33,15 @@ namespace {{packageName}}.Converters
         /// <param name="culture"></param>
         /// <param name="value"></param>
         /// <returns></returns>
-        public override object ConvertFrom(ITypeDescriptorContext context, CultureInfo culture, object value)
+        public override object{{#nullableReferenceTypes}}?{{/nullableReferenceTypes}} ConvertFrom(ITypeDescriptorContext{{#nullableReferenceTypes}}?{{/nullableReferenceTypes}} context, CultureInfo{{#nullableReferenceTypes}}?{{/nullableReferenceTypes}} culture, object value)
         {
             var s = value as string;
             if (string.IsNullOrEmpty(s))
             {
                 return null;
             }
 
-            return {{#useNewtonsoft}}JsonConvert.DeserializeObject{{/useNewtonsoft}}{{^useNewtonsoft}}JsonSerializer.Deserialize{{/useNewtonsoft}}<T>(@"""" + value.ToString() + @"""");
+            return {{#useNewtonsoft}}JsonConvert.DeserializeObject{{/useNewtonsoft}}{{^useNewtonsoft}}JsonSerializer.Deserialize{{/useNewtonsoft}}<T>(@"""" + value + @"""");
         }
     }
 }

modules/openapi-generator/src/main/resources/aspnetcore/3.0/validateModel.mustache

@@ -19,13 +19,12 @@ namespace {{packageName}}.Attributes
         public override void OnActionExecuting(ActionExecutingContext context)
         {
             // Per https://blog.markvincze.com/how-to-validate-action-parameters-with-dataannotation-attributes/
-            var descriptor = context.ActionDescriptor as ControllerActionDescriptor;
-            if (descriptor != null)
+            if (context.ActionDescriptor is ControllerActionDescriptor descriptor)
             {
                 foreach (var parameter in descriptor.MethodInfo.GetParameters())
                 {
-                    object args = null;
-                    if (context.ActionArguments.ContainsKey(parameter.Name))
+                    object{{#nullableReferenceTypes}}?{{/nullableReferenceTypes}} args = null;
+                    if ({{#nullableReferenceTypes}}parameter.Name != null && {{/nullableReferenceTypes}}context.ActionArguments.ContainsKey(parameter.Name))
                     {
                         args = context.ActionArguments[parameter.Name];
                     }
@@ -40,17 +39,16 @@ namespace {{packageName}}.Attributes
             }
         }
 
-        private void ValidateAttributes(ParameterInfo parameter, object args, ModelStateDictionary modelState)
+        private void ValidateAttributes(ParameterInfo parameter, object{{#nullableReferenceTypes}}?{{/nullableReferenceTypes}} args, ModelStateDictionary modelState)
         {
             foreach (var attributeData in parameter.CustomAttributes)
             {
                 var attributeInstance = parameter.GetCustomAttribute(attributeData.AttributeType);
 
-                var validationAttribute = attributeInstance as ValidationAttribute;
-                if (validationAttribute != null)
+                if (attributeInstance is ValidationAttribute validationAttribute)
                 {
                     var isValid = validationAttribute.IsValid(args);
-                    if (!isValid)
+                    if (!isValid{{#nullableReferenceTypes}} && parameter.Name != null{{/nullableReferenceTypes}})
                     {
                         modelState.AddModelError(parameter.Name, validationAttribute.FormatErrorMessage(parameter.Name));
                     }

samples/server/petstore/aspnetcore-3.0/src/Org.OpenAPITools/Attributes/ValidateModelStateAttribute.cs

@@ -19,8 +19,7 @@ public class ValidateModelStateAttribute : ActionFilterAttribute
         public override void OnActionExecuting(ActionExecutingContext context)
         {
             // Per https://blog.markvincze.com/how-to-validate-action-parameters-with-dataannotation-attributes/
-            var descriptor = context.ActionDescriptor as ControllerActionDescriptor;
-            if (descriptor != null)
+            if (context.ActionDescriptor is ControllerActionDescriptor descriptor)
             {
                 foreach (var parameter in descriptor.MethodInfo.GetParameters())
                 {
@@ -46,8 +45,7 @@ private void ValidateAttributes(ParameterInfo parameter, object args, ModelState
             {
                 var attributeInstance = parameter.GetCustomAttribute(attributeData.AttributeType);
 
-                var validationAttribute = attributeInstance as ValidationAttribute;
-                if (validationAttribute != null)
+                if (attributeInstance is ValidationAttribute validationAttribute)
                 {
                     var isValid = validationAttribute.IsValid(args);
                     if (!isValid)

samples/server/petstore/aspnetcore-3.0/src/Org.OpenAPITools/Converters/CustomEnumConverter.cs

@@ -36,7 +36,7 @@ public override object ConvertFrom(ITypeDescriptorContext context, CultureInfo c
                 return null;
             }
 
-            return JsonConvert.DeserializeObject<T>(@"""" + value.ToString() + @"""");
+            return JsonConvert.DeserializeObject<T>(@"""" + value + @"""");
         }
     }
 }

samples/server/petstore/aspnetcore-3.1/src/Org.OpenAPITools/Attributes/ValidateModelStateAttribute.cs

@@ -19,8 +19,7 @@ public class ValidateModelStateAttribute : ActionFilterAttribute
         public override void OnActionExecuting(ActionExecutingContext context)
         {
             // Per https://blog.markvincze.com/how-to-validate-action-parameters-with-dataannotation-attributes/
-            var descriptor = context.ActionDescriptor as ControllerActionDescriptor;
-            if (descriptor != null)
+            if (context.ActionDescriptor is ControllerActionDescriptor descriptor)
             {
                 foreach (var parameter in descriptor.MethodInfo.GetParameters())
                 {
@@ -46,8 +45,7 @@ private void ValidateAttributes(ParameterInfo parameter, object args, ModelState
             {
                 var attributeInstance = parameter.GetCustomAttribute(attributeData.AttributeType);
 
-                var validationAttribute = attributeInstance as ValidationAttribute;
-                if (validationAttribute != null)
+                if (attributeInstance is ValidationAttribute validationAttribute)
                 {
                     var isValid = validationAttribute.IsValid(args);
                     if (!isValid)

samples/server/petstore/aspnetcore-3.1/src/Org.OpenAPITools/Converters/CustomEnumConverter.cs

@@ -36,7 +36,7 @@ public override object ConvertFrom(ITypeDescriptorContext context, CultureInfo c
                 return null;
             }
 
-            return JsonConvert.DeserializeObject<T>(@"""" + value.ToString() + @"""");
+            return JsonConvert.DeserializeObject<T>(@"""" + value + @"""");
         }
     }
 }

samples/server/petstore/aspnetcore-5.0/src/Org.OpenAPITools/Attributes/ValidateModelStateAttribute.cs

@@ -19,8 +19,7 @@ public class ValidateModelStateAttribute : ActionFilterAttribute
         public override void OnActionExecuting(ActionExecutingContext context)
         {
             // Per https://blog.markvincze.com/how-to-validate-action-parameters-with-dataannotation-attributes/
-            var descriptor = context.ActionDescriptor as ControllerActionDescriptor;
-            if (descriptor != null)
+            if (context.ActionDescriptor is ControllerActionDescriptor descriptor)
             {
                 foreach (var parameter in descriptor.MethodInfo.GetParameters())
                 {
@@ -46,8 +45,7 @@ private void ValidateAttributes(ParameterInfo parameter, object args, ModelState
             {
                 var attributeInstance = parameter.GetCustomAttribute(attributeData.AttributeType);
 
-                var validationAttribute = attributeInstance as ValidationAttribute;
-                if (validationAttribute != null)
+                if (attributeInstance is ValidationAttribute validationAttribute)
                 {
                     var isValid = validationAttribute.IsValid(args);
                     if (!isValid)

samples/server/petstore/aspnetcore-5.0/src/Org.OpenAPITools/Converters/CustomEnumConverter.cs

@@ -36,7 +36,7 @@ public override object ConvertFrom(ITypeDescriptorContext context, CultureInfo c
                 return null;
             }
 
-            return JsonConvert.DeserializeObject<T>(@"""" + value.ToString() + @"""");
+            return JsonConvert.DeserializeObject<T>(@"""" + value + @"""");
         }
     }
 }

samples/server/petstore/aspnetcore-6.0-NewtonsoftFalse/.openapi-generator-ignore

@@ -0,0 +1,23 @@
+# OpenAPI Generator Ignore
+# Generated by openapi-generator https://github.com/openapitools/openapi-generator
+
+# Use this file to prevent files from being overwritten by the generator.
+# The patterns follow closely to .gitignore or .dockerignore.
+
+# As an example, the C# client generator defines ApiClient.cs.
+# You can make changes and tell OpenAPI Generator to ignore just this file by uncommenting the following line:
+#ApiClient.cs
+
+# You can match any string of characters against a directory, file or extension with a single asterisk (*):
+#foo/*/qux
+# The above matches foo/bar/qux and foo/baz/qux, but not foo/bar/baz/qux
+
+# You can recursively match patterns against a directory, file or extension with a double asterisk (**):
+#foo/**/qux
+# This matches foo/bar/qux, foo/baz/qux, and foo/bar/baz/qux
+
+# You can also negate patterns with an exclamation (!).
+# For example, you can ignore all files in a docs folder with the file extension .md:
+#docs/*.md
+# Then explicitly reverse the ignore rule for a single file:
+#!docs/README.md

samples/server/petstore/aspnetcore-6.0-NewtonsoftFalse/.openapi-generator/FILES

@@ -0,0 +1,38 @@
+.openapi-generator-ignore
+Org.OpenAPITools.sln
+README.md
+build.bat
+build.sh
+src/Org.OpenAPITools/.gitignore
+src/Org.OpenAPITools/Attributes/ValidateModelStateAttribute.cs
+src/Org.OpenAPITools/Authentication/ApiAuthentication.cs
+src/Org.OpenAPITools/Controllers/FakeApi.cs
+src/Org.OpenAPITools/Controllers/PetApi.cs
+src/Org.OpenAPITools/Controllers/StoreApi.cs
+src/Org.OpenAPITools/Controllers/UserApi.cs
+src/Org.OpenAPITools/Converters/CustomEnumConverter.cs
+src/Org.OpenAPITools/Dockerfile
+src/Org.OpenAPITools/Filters/BasePathFilter.cs
+src/Org.OpenAPITools/Filters/GeneratePathParamsValidationFilter.cs
+src/Org.OpenAPITools/Formatters/InputFormatterStream.cs
+src/Org.OpenAPITools/Models/Animal.cs
+src/Org.OpenAPITools/Models/ApiResponse.cs
+src/Org.OpenAPITools/Models/Cat.cs
+src/Org.OpenAPITools/Models/CatAllOf.cs
+src/Org.OpenAPITools/Models/Category.cs
+src/Org.OpenAPITools/Models/Dog.cs
+src/Org.OpenAPITools/Models/DogAllOf.cs
+src/Org.OpenAPITools/Models/Order.cs
+src/Org.OpenAPITools/Models/Pet.cs
+src/Org.OpenAPITools/Models/Tag.cs
+src/Org.OpenAPITools/Models/User.cs
+src/Org.OpenAPITools/OpenApi/TypeExtensions.cs
+src/Org.OpenAPITools/Org.OpenAPITools.csproj
+src/Org.OpenAPITools/Program.cs
+src/Org.OpenAPITools/Properties/launchSettings.json
+src/Org.OpenAPITools/Startup.cs
+src/Org.OpenAPITools/appsettings.Development.json
+src/Org.OpenAPITools/appsettings.json
+src/Org.OpenAPITools/wwwroot/README.md
+src/Org.OpenAPITools/wwwroot/index.html
+src/Org.OpenAPITools/wwwroot/openapi-original.json

samples/server/petstore/aspnetcore-6.0-NewtonsoftFalse/.openapi-generator/VERSION

@@ -0,0 +1 @@
+7.0.0-SNAPSHOT

samples/server/petstore/aspnetcore-6.0-NewtonsoftFalse/Org.OpenAPITools.sln

@@ -0,0 +1,22 @@
+
+Microsoft Visual Studio Solution File, Format Version 12.00
+# Visual Studio 15
+VisualStudioVersion = 15.0.27428.2043
+MinimumVisualStudioVersion = 10.0.40219.1
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Org.OpenAPITools", "src\Org.OpenAPITools\Org.OpenAPITools.csproj", "{3C799344-F285-4669-8FD5-7ED9B795D5C5}"
+EndProject
+Global
+    GlobalSection(SolutionConfigurationPlatforms) = preSolution
+        Debug|Any CPU = Debug|Any CPU
+        Release|Any CPU = Release|Any CPU
+    EndGlobalSection
+    GlobalSection(ProjectConfigurationPlatforms) = postSolution
+        {3C799344-F285-4669-8FD5-7ED9B795D5C5}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+        {3C799344-F285-4669-8FD5-7ED9B795D5C5}.Debug|Any CPU.Build.0 = Debug|Any CPU
+        {3C799344-F285-4669-8FD5-7ED9B795D5C5}.Release|Any CPU.ActiveCfg = Release|Any CPU
+        {3C799344-F285-4669-8FD5-7ED9B795D5C5}.Release|Any CPU.Build.0 = Release|Any CPU
+    EndGlobalSection
+    GlobalSection(SolutionProperties) = preSolution
+        HideSolutionNode = FALSE
+    EndGlobalSection
+EndGlobal

samples/server/petstore/aspnetcore-6.0-NewtonsoftFalse/README.md

@@ -0,0 +1,50 @@
+# Org.OpenAPITools - ASP.NET Core 6.0 Server
+
+This is a sample server Petstore server. For this sample, you can use the api key `special-key` to test the authorization filters.
+
+## Upgrade NuGet Packages
+
+NuGet packages get frequently updated.
+
+To upgrade this solution to the latest version of all NuGet packages, use the dotnet-outdated tool.
+
+
+Install dotnet-outdated tool:
+
+```
+dotnet tool install --global dotnet-outdated-tool
+```
+
+Upgrade only to new minor versions of packages
+
+```
+dotnet outdated --upgrade --version-lock Major
+```
+
+Upgrade to all new versions of packages (more likely to include breaking API changes)
+
+```
+dotnet outdated --upgrade
+```
+
+
+## Run
+
+Linux/OS X:
+
+```
+sh build.sh
+```
+
+Windows:
+
+```
+build.bat
+```
+## Run in Docker
+
+```
+cd src/Org.OpenAPITools
+docker build -t org.openapitools .
+docker run -p 5000:8080 org.openapitools
+```

samples/server/petstore/aspnetcore-6.0-NewtonsoftFalse/build.bat

@@ -0,0 +1,9 @@
+:: Generated by: https://openapi-generator.tech
+::
+
+@echo off
+
+dotnet restore src\Org.OpenAPITools
+dotnet build src\Org.OpenAPITools
+echo Now, run the following to start the project: dotnet run -p src\Org.OpenAPITools\Org.OpenAPITools.csproj --launch-profile web.
+echo.

samples/server/petstore/aspnetcore-6.0-NewtonsoftFalse/build.sh

@@ -0,0 +1,8 @@
+#!/usr/bin/env bash
+#
+# Generated by: https://openapi-generator.tech
+#
+
+dotnet restore src/Org.OpenAPITools/ && \
+    dotnet build src/Org.OpenAPITools/ && \
+    echo "Now, run the following to start the project: dotnet run -p src/Org.OpenAPITools/Org.OpenAPITools.csproj --launch-profile web"