Inlined casing conversions

Author: Bart Koelman

src/JsonApiDotNetCore/Extensions/StringExtensions.cs

@@ -1,5 +1,3 @@
-using str = JsonApiDotNetCore.Extensions.StringExtensions;
-
 namespace JsonApiDotNetCore.Graph
 {
     /// <summary>
@@ -34,7 +32,6 @@ namespace JsonApiDotNetCore.Graph
     public sealed class CamelCaseFormatter: BaseResourceNameFormatter
     {
         /// <inheritdoc/>
-        public override string ApplyCasingConvention(string properName) => str.Camelize(properName);
+        public override string ApplyCasingConvention(string properName) => char.ToLowerInvariant(properName[0]) + properName.Substring(1);
     }
 }
-

src/JsonApiDotNetCore/Graph/ResourceNameFormatters/CamelCaseFormatter.cs

@@ -1,4 +1,4 @@
-using str = JsonApiDotNetCore.Extensions.StringExtensions;
+using System.Text;
 
 namespace JsonApiDotNetCore.Graph
 {
@@ -34,6 +34,27 @@ namespace JsonApiDotNetCore.Graph
     public sealed class KebabCaseFormatter : BaseResourceNameFormatter
     {
         /// <inheritdoc/>
-        public override string ApplyCasingConvention(string properName) => str.Dasherize(properName);
+        public override string ApplyCasingConvention(string properName)
+        {
+            var chars = properName.ToCharArray();
+            if (chars.Length > 0)
+            {
+                var builder = new StringBuilder();
+                for (var i = 0; i < chars.Length; i++)
+                {
+                    if (char.IsUpper(chars[i]))
+                    {
+                        var hashedString = i > 0 ? $"-{char.ToLower(chars[i])}" : $"{char.ToLower(chars[i])}";
+                        builder.Append(hashedString);
+                    }
+                    else
+                    {
+                        builder.Append(chars[i]);
+                    }
+                }
+                return builder.ToString();
+            }
+            return properName;
+        }
     }
 }

src/JsonApiDotNetCore/Graph/ResourceNameFormatters/KebabCaseFormatter.cs

@@ -1,8 +1,7 @@
-using System;
+using System;
 using System.Collections;
-using System.Collections.Generic;
+using System.Collections.Generic;
 using System.Linq;
-using JsonApiDotNetCore.Extensions;
 using JsonApiDotNetCore.Internal.Contracts;
 using JsonApiDotNetCore.Models;
 
@@ -28,7 +27,7 @@ public ResourceObject Build(IIdentifiable entity, IEnumerable<AttrAttribute> att
             var resourceContext = _provider.GetResourceContext(entity.GetType());
 
             // populating the top-level "type" and "id" members.
-            var ro = new ResourceObject { Type = resourceContext.ResourceName, Id = entity.StringId.NullIfEmpty() };
+            var ro = new ResourceObject { Type = resourceContext.ResourceName, Id = entity.StringId == string.Empty ? null : entity.StringId };
 
             // populating the top-level "attribute" member of a resource object. never include "id" as an attribute
             if (attributes != null && (attributes = attributes.Where(attr => attr.PropertyInfo.Name != _identifiablePropertyName)).Any())

src/JsonApiDotNetCore/Serialization/Common/ResourceObjectBuilder.cs

@@ -3,7 +3,6 @@
 using JsonApiDotNetCore.Internal.Contracts;
 using JsonApiDotNetCore.Managers.Contracts;
 using JsonApiDotNetCore.Models;
-using JsonApiDotNetCore.Extensions;
 using JsonApiDotNetCore.Models.Links;
 using JsonApiDotNetCoreExample.Models;
 using Moq;
@@ -50,7 +49,7 @@ public void BuildResourceLinks_GlobalAndResourceConfiguration_ExpectedResult(Lin
         {
             // Arrange
             var config = GetConfiguration(resourceLinks: global);
-            var primaryResource = GetResourceContext<Article>(resourceLinks: resource);
+            var primaryResource = GetArticleResourceContext(resourceLinks: resource);
             _provider.Setup(m => m.GetResourceContext("articles")).Returns(primaryResource);
             var builder = new LinkBuilder(config, GetRequestManager(), null, _provider.Object, _queryStringAccessor);
 
@@ -98,7 +97,7 @@ public void BuildRelationshipLinks_GlobalResourceAndAttrConfiguration_ExpectedLi
         {
             // Arrange
             var config = GetConfiguration(relationshipLinks: global);
-            var primaryResource = GetResourceContext<Article>(relationshipLinks: resource);
+            var primaryResource = GetArticleResourceContext(relationshipLinks: resource);
             _provider.Setup(m => m.GetResourceContext(typeof(Article))).Returns(primaryResource);
             var builder = new LinkBuilder(config, GetRequestManager(), null, _provider.Object, _queryStringAccessor);
             var attr = new HasOneAttribute(links: relationship) { RightType = typeof(Author), PublicRelationshipName = "author" };
@@ -154,7 +153,7 @@ public void BuildTopLevelLinks_GlobalAndResourceConfiguration_ExpectedLinks(Link
         {
             // Arrange
             var config = GetConfiguration(topLevelLinks: global);
-            var primaryResource = GetResourceContext<Article>(topLevelLinks: resource);
+            var primaryResource = GetArticleResourceContext(topLevelLinks: resource);
             _provider.Setup(m => m.GetResourceContext<Article>()).Returns(primaryResource);
 
             bool useBaseId = expectedSelfLink != _topSelf;
@@ -220,19 +219,18 @@ private IPageService GetPageManager()
             mock.Setup(m => m.TotalPages).Returns(3);
             mock.Setup(m => m.PageSize).Returns(10);
             return mock.Object;
-
         }
 
-        private ResourceContext GetResourceContext<TResource>(Link resourceLinks = Link.NotConfigured,
-                                                          Link topLevelLinks = Link.NotConfigured,
-                                                          Link relationshipLinks = Link.NotConfigured) where TResource : class, IIdentifiable
+        private ResourceContext GetArticleResourceContext(Link resourceLinks = Link.NotConfigured,
+            Link topLevelLinks = Link.NotConfigured,
+            Link relationshipLinks = Link.NotConfigured)
         {
             return new ResourceContext
             {
                 ResourceLinks = resourceLinks,
                 TopLevelLinks = topLevelLinks,
                 RelationshipLinks = relationshipLinks,
-                ResourceName = typeof(TResource).Name.Dasherize() + "s"
+                ResourceName = "articles"
             };
         }