feat/upgrade oai

.editorconfig

@@ -3,3 +3,6 @@
 # IDE0009: Member access should be qualified.
 dotnet_diagnostic.IDE0009.severity = none
 dotnet_diagnostic.CA2016.severity = warning
+
+[*.cs]
+dotnet_public_api_analyzer.require_api_files = true

src/Microsoft.OpenApi.OData.Reader/Common/CryptographyExtensions.cs

@@ -22,7 +22,7 @@ public static string GetHashSHA256(this string input)
             Utils.CheckArgumentNull(input, nameof(input));
 
             var inputBytes = Encoding.UTF8.GetBytes(input);
-            var hashBytes = hasher.Value.ComputeHash(inputBytes);
+            if (hasher.Value?.ComputeHash(inputBytes) is not {} hashBytes) return string.Empty;
             var hash = new StringBuilder();
             foreach (var b in hashBytes)
             {

src/Microsoft.OpenApi.OData.Reader/Common/OpenApiOperationExtensions.cs

@@ -24,7 +24,7 @@ internal static class OpenApiOperationExtensions
     /// <param name="addNoContent">Optional: Whether to add a 204 no content response.</param>
     /// <param name="schema">Optional: The OpenAPI schema of the response.</param>
     /// <param name="document">The OpenAPI document to lookup references.</param>
-    public static void AddErrorResponses(this OpenApiOperation operation, OpenApiConvertSettings settings, OpenApiDocument document, bool addNoContent = false, IOpenApiSchema schema = null)
+    public static void AddErrorResponses(this OpenApiOperation operation, OpenApiConvertSettings settings, OpenApiDocument document, bool addNoContent = false, IOpenApiSchema? schema = null)
     {
         Utils.CheckArgumentNull(operation, nameof(operation));
         Utils.CheckArgumentNull(settings, nameof(settings));
@@ -39,7 +39,7 @@ public static void AddErrorResponses(this OpenApiOperation operation, OpenApiCon
         {
             if (settings.UseSuccessStatusCodeRange)
             {
-                OpenApiResponse response = null;
+                OpenApiResponse? response = null;
                 if (schema != null)
                 {
                     response = new()
@@ -57,22 +57,25 @@ public static void AddErrorResponses(this OpenApiOperation operation, OpenApiCon
                         }
                     };
                 }
-                operation.Responses.Add(Constants.StatusCodeClass2XX, response ?? Constants.StatusCodeClass2XX.GetResponse(document));
+                if ((response ?? Constants.StatusCodeClass2XX.GetResponse(document)) is {} x2xxResponse)
+                    operation.Responses.Add(Constants.StatusCodeClass2XX, x2xxResponse);
             }
-            else
+            else if (Constants.StatusCode204.GetResponse(document) is {} x204Response)
             {
-                operation.Responses.Add(Constants.StatusCode204, Constants.StatusCode204.GetResponse(document));
+                operation.Responses.Add(Constants.StatusCode204, x204Response);
             }
         }
 
-        if (settings.ErrorResponsesAsDefault)
+        if (settings.ErrorResponsesAsDefault && Constants.StatusCodeDefault.GetResponse(document) is {} defaultResponse)
         {
-            operation.Responses.Add(Constants.StatusCodeDefault, Constants.StatusCodeDefault.GetResponse(document));
+            operation.Responses.Add(Constants.StatusCodeDefault, defaultResponse);
         }
         else
         {
-			operation.Responses.Add(Constants.StatusCodeClass4XX, Constants.StatusCodeClass4XX.GetResponse(document));
-			operation.Responses.Add(Constants.StatusCodeClass5XX, Constants.StatusCodeClass5XX.GetResponse(document));
+            if (Constants.StatusCodeClass4XX.GetResponse(document) is {} x4xxResponse)
+			    operation.Responses.Add(Constants.StatusCodeClass4XX, x4xxResponse);
+            if (Constants.StatusCodeClass5XX.GetResponse(document) is {} x5xxResponse)
+			    operation.Responses.Add(Constants.StatusCodeClass5XX, x5xxResponse);
         }
     }
 }

src/Microsoft.OpenApi.OData.Reader/Common/Utils.cs

@@ -28,10 +28,10 @@ public static class Utils
         /// </summary>
         /// <typeparam name="T">The type of the term.</typeparam>
         /// <returns>The qualified name.</returns>
-        public static string GetTermQualifiedName<T>()
+        public static string? GetTermQualifiedName<T>()
         {
             object[] attributes = typeof(T).GetCustomAttributes(typeof(TermAttribute), false);
-            if (attributes == null && attributes.Length == 0)
+            if (attributes == null || attributes.Length == 0)
             {
                 return null;
             }
@@ -45,7 +45,7 @@ public static string GetTermQualifiedName<T>()
         /// </summary>
         /// <param name="input">The input string.</param>
         /// <returns>The changed string.</returns>
-        public static string UpperFirstChar(string input)
+        public static string? UpperFirstChar(string? input)
         {
             if (input == null)
             {
@@ -129,7 +129,7 @@ internal static string ToFirstCharacterLowerCase(this string input)
         /// </summary>
         /// <param name="path">The <see cref="ODataPath"/>.</param>
         /// <param name="navigationPropertyName">Optional: The navigation property name.</param>
-        internal static string NavigationPropertyPath(this ODataPath path, string navigationPropertyName = null)
+        internal static string NavigationPropertyPath(this ODataPath path, string? navigationPropertyName = null)
         {
             string value = string.Join("/",
                 path.Segments.OfType<ODataNavigationPropertySegment>().Select(e => e.Identifier));
@@ -176,7 +176,7 @@ private static Dictionary<string, string> GetCustomXMLAttributesValueMapping(IEd
         {
             Dictionary<string, string> attributesValueMap = new();
 
-            if ((!customXMLAttributesMapping?.Any() ?? true) ||
+            if (customXMLAttributesMapping is not {Count:>0} ||
                 model == null ||
                 element == null)
             {
@@ -187,10 +187,10 @@ private static Dictionary<string, string> GetCustomXMLAttributesValueMapping(IEd
             {
                 string attributeName = item.Key.Split(':').Last(); // example, 'ags:IsHidden' --> 'IsHidden'
                 string extensionName = item.Value;
-                EdmStringConstant customXMLAttribute = model.DirectValueAnnotationsManager.GetDirectValueAnnotations(element)?
+                var customXMLAttribute = model.DirectValueAnnotationsManager.GetDirectValueAnnotations(element)?
                                 .Where(x => x.Name.Equals(attributeName, StringComparison.OrdinalIgnoreCase))?
                                 .FirstOrDefault()?.Value as EdmStringConstant;
-                string attributeValue = customXMLAttribute?.Value;
+                var attributeValue = customXMLAttribute?.Value;
 
                 if (!string.IsNullOrEmpty(attributeValue))
                 {
@@ -212,10 +212,10 @@ private static Dictionary<string, string> GetCustomXMLAttributesValueMapping(IEd
         internal static bool IsBaseTypeReferencedAsTypeInModel(
             this IEdmModel model,
             IEdmStructuredType baseType,
-            IEnumerable<IEdmStructuredType> structuredTypes = null,
-            IEnumerable<IEdmAction> actions = null)
+            IEnumerable<IEdmStructuredType>? structuredTypes = null,
+            IEnumerable<IEdmAction>? actions = null)
         {
-            string baseTypeName = baseType?.FullTypeName();
+            string baseTypeName = baseType.FullTypeName();
             bool isBaseTypeEntity = Constants.EntityName.Equals(baseTypeName?.Split('.').Last(), StringComparison.OrdinalIgnoreCase);
 
             if (!string.IsNullOrEmpty(baseTypeName) && !isBaseTypeEntity)
@@ -253,7 +253,7 @@ internal static bool IsBaseTypeReferencedAsTypeInModel(
         /// </summary>
         /// <param name="segment">The target <see cref="ODataSegment"/>.</param>
         /// <returns>The entity type of the target <paramref name="segment"/>.</returns>
-        internal static IEdmEntityType EntityTypeFromPathSegment(this ODataSegment segment)
+        internal static IEdmEntityType? EntityTypeFromPathSegment(this ODataSegment segment)
         {
             CheckArgumentNull(segment, nameof(segment));
 
@@ -279,12 +279,12 @@ internal static IEdmEntityType EntityTypeFromPathSegment(this ODataSegment segme
         /// </summary>
         /// <param name="segment">The target <see cref="ODataOperationSegment"/>.</param>
         /// <returns>The entity type of the target <paramref name="segment"/>.</returns>
-        private static IEdmEntityType EntityTypeFromOperationSegment(this ODataSegment segment)
+        private static IEdmEntityType? EntityTypeFromOperationSegment(this ODataSegment segment)
         {
             CheckArgumentNull(segment, nameof(segment));
 
             if (segment is ODataOperationSegment operationSegment &&
-            operationSegment.Operation.Parameters.FirstOrDefault() is IEdmOperationParameter bindingParameter)
+            operationSegment.Operation?.Parameters.FirstOrDefault() is IEdmOperationParameter bindingParameter)
             {
                 IEdmTypeReference bindingType = bindingParameter.Type;
 
@@ -339,10 +339,10 @@ internal static bool TryAddPath(this IDictionary<string, IOpenApiPathItem> pathI
                 }
 
                 ODataSegment lastSecondSegment = path.Segments.ElementAt(path.Count - secondLastSegmentIndex);
-                IEdmEntityType boundEntityType = lastSecondSegment?.EntityTypeFromPathSegment();
+                var boundEntityType = lastSecondSegment?.EntityTypeFromPathSegment();
 
-                IEdmEntityType operationEntityType = lastSegment.EntityTypeFromOperationSegment();
-                IEnumerable<IEdmStructuredType> derivedTypes = (operationEntityType != null)
+                var operationEntityType = lastSegment.EntityTypeFromOperationSegment();
+                var derivedTypes = (operationEntityType != null)
                     ? context.Model.FindAllDerivedTypes(operationEntityType)
                     : null;