moves all microsoft extensions to a single place, depends on https://github.com/microsoft/OpenAPI.NET/pull/1333

src/Microsoft.OpenApi.OData.Reader/Edm/ODataSegment.cs

@@ -9,7 +9,6 @@
 using Microsoft.OData.Edm;
 using Microsoft.OpenApi.OData.Common;
 using Microsoft.OData.Edm.Vocabularies;
-using Microsoft.OpenApi.OData.OpenApiExtensions;
 
 namespace Microsoft.OpenApi.OData.Edm
 {
@@ -109,7 +108,7 @@ public string GetPathItemName(OpenApiConvertSettings settings)
             return GetPathItemName(settings, new HashSet<string>());
         }
         /// <summary>
-        /// Profides a suffix for the operation id based on the operation path.
+        /// Provides a suffix for the operation id based on the operation path.
         /// </summary>
         /// <param name="path">Path to use to deduplicate.</param>
         /// <param name="settings">The settings.</param>
@@ -131,7 +130,8 @@ public string GetPathHash(OpenApiConvertSettings settings, ODataPath path = defa
         /// <summary>
         /// Provides any deprecation information for the segment.
         /// </summary>
-        public OpenApiDeprecationExtension Deprecation { get; set; }
+        [Obsolete("This property never returned any value or was used by the library.")]
+        public Microsoft.OpenApi.OData.OpenApiExtensions.OpenApiDeprecationExtension Deprecation { get; set; }
         /// <summary>
         /// Returns the list of <see cref="IEdmVocabularyAnnotatable"/> this segment refers to.
         /// </summary>

src/Microsoft.OpenApi.OData.Reader/Edm/RecordExpressionExtensions.cs

@@ -29,7 +29,7 @@ internal static class RecordExpressionExtensions
             Utils.CheckArgumentNull(record, nameof(record));
             Utils.CheckArgumentNull(propertyName, nameof(propertyName));
 
-            return (record.Properties?.FirstOrDefault(e => e.Name == propertyName) is IEdmPropertyConstructor property &&
+            return (record.Properties?.FirstOrDefault(e => propertyName.Equals(e.Name, StringComparison.Ordinal)) is IEdmPropertyConstructor property &&
                 property.Value is IEdmIntegerConstantExpression value) ?
                 value.Value :
                 null;
@@ -46,7 +46,7 @@ public static string GetString(this IEdmRecordExpression record, string property
             Utils.CheckArgumentNull(record, nameof(record));
             Utils.CheckArgumentNull(propertyName, nameof(propertyName));
 
-            return (record.Properties?.FirstOrDefault(e => e.Name == propertyName) is IEdmPropertyConstructor property &&
+            return (record.Properties?.FirstOrDefault(e => propertyName.Equals(e.Name, StringComparison.Ordinal)) is IEdmPropertyConstructor property &&
             property.Value is IEdmStringConstantExpression value) ?
                 value.Value :
                 null;
@@ -63,7 +63,7 @@ public static string GetString(this IEdmRecordExpression record, string property
             Utils.CheckArgumentNull(record, nameof(record));
             Utils.CheckArgumentNull(propertyName, nameof(propertyName));
 
-            return (record.Properties?.FirstOrDefault(e => e.Name == propertyName) is IEdmPropertyConstructor property &&
+            return (record.Properties?.FirstOrDefault(e => propertyName.Equals(e.Name, StringComparison.Ordinal)) is IEdmPropertyConstructor property &&
                 property.Value is IEdmBooleanConstantExpression value) ?
                 value.Value :
                 null;
@@ -80,7 +80,7 @@ public static string GetString(this IEdmRecordExpression record, string property
             Utils.CheckArgumentNull(record, nameof(record));
             Utils.CheckArgumentNull(propertyName, nameof(propertyName));
 
-            return (record.Properties?.FirstOrDefault(e => e.Name == propertyName) is IEdmPropertyConstructor property &&
+            return (record.Properties?.FirstOrDefault(e => propertyName.Equals(e.Name, StringComparison.Ordinal)) is IEdmPropertyConstructor property &&
                 property.Value is IEdmDateConstantExpression value) ?
                 value.Value :
                 null;
@@ -99,7 +99,7 @@ public static string GetString(this IEdmRecordExpression record, string property
             Utils.CheckArgumentNull(record, nameof(record));
             Utils.CheckArgumentNull(propertyName, nameof(propertyName));
 
-            return (record.Properties?.FirstOrDefault(e => e.Name == propertyName) is IEdmPropertyConstructor property &&
+            return (record.Properties?.FirstOrDefault(e => propertyName.Equals(e.Name, StringComparison.Ordinal)) is IEdmPropertyConstructor property &&
                 property.Value is IEdmEnumMemberExpression value &&
                 value.EnumMembers != null &&
                 value.EnumMembers.Any() &&
@@ -121,7 +121,7 @@ public static T GetRecord<T>(this IEdmRecordExpression record, string propertyNa
             Utils.CheckArgumentNull(record, nameof(record));
             Utils.CheckArgumentNull(propertyName, nameof(propertyName));
 
-            if (record.Properties?.FirstOrDefault(e => e.Name == propertyName) is IEdmPropertyConstructor property &&
+            if (record.Properties?.FirstOrDefault(e => propertyName.Equals(e.Name, StringComparison.Ordinal)) is IEdmPropertyConstructor property &&
                 property.Value is IEdmRecordExpression recordValue)
             {
                 T a = new();
@@ -143,7 +143,7 @@ public static string GetPropertyPath(this IEdmRecordExpression record, string pr
             Utils.CheckArgumentNull(record, nameof(record));
             Utils.CheckArgumentNull(propertyName, nameof(propertyName));
 
-            return (record.Properties?.FirstOrDefault(e => e.Name == propertyName) is IEdmPropertyConstructor property &&
+            return (record.Properties?.FirstOrDefault(e => propertyName.Equals(e.Name, StringComparison.Ordinal)) is IEdmPropertyConstructor property &&
                 property.Value is IEdmPathExpression value) ?
                 value.Path :
                 null;
@@ -160,7 +160,7 @@ public static IList<string> GetCollectionPropertyPath(this IEdmRecordExpression
             Utils.CheckArgumentNull(record, nameof(record));
             Utils.CheckArgumentNull(propertyName, nameof(propertyName));
 
-            if (record.Properties?.FirstOrDefault(e => e.Name == propertyName) is IEdmPropertyConstructor property &&
+            if (record.Properties?.FirstOrDefault(e => propertyName.Equals(e.Name, StringComparison.Ordinal)) is IEdmPropertyConstructor property &&
                 property.Value is IEdmCollectionExpression value && value.Elements != null)
             {
                 IList<string> properties = 
@@ -189,7 +189,7 @@ public static IList<string> GetCollection(this IEdmRecordExpression record, stri
             Utils.CheckArgumentNull(record, nameof(record));
             Utils.CheckArgumentNull(propertyName, nameof(propertyName));
 
-            if (record.Properties?.FirstOrDefault(e => e.Name == propertyName) is IEdmPropertyConstructor property &&
+            if (record.Properties?.FirstOrDefault(e => propertyName.Equals(e.Name, StringComparison.Ordinal)) is IEdmPropertyConstructor property &&
                 property.Value is IEdmCollectionExpression collection && collection.Elements != null)
             {
                 IList<string> items = collection.Elements
@@ -215,7 +215,7 @@ public static IList<T> GetCollection<T>(this IEdmRecordExpression record, string
             Utils.CheckArgumentNull(record, nameof(record));
             Utils.CheckArgumentNull(propertyName, nameof(propertyName));
 
-            if (record.Properties?.FirstOrDefault(e => e.Name == propertyName) is IEdmPropertyConstructor property &&
+            if (record.Properties?.FirstOrDefault(e => propertyName.Equals(e.Name, StringComparison.Ordinal)) is IEdmPropertyConstructor property &&
                 property.Value is IEdmCollectionExpression collection && collection.Elements != null)
             {
                 IList<T> items = new List<T>();

src/Microsoft.OpenApi.OData.Reader/Generator/OpenApiErrorSchemaGenerator.cs

@@ -10,7 +10,7 @@
 using Microsoft.OpenApi.Models;
 using Microsoft.OpenApi.OData.Common;
 using Microsoft.OpenApi.OData.Edm;
-using Microsoft.OpenApi.OData.OpenApiExtensions;
+using Microsoft.OpenApi.MicrosoftExtensions;
 
 namespace Microsoft.OpenApi.OData.Generator
 {

src/Microsoft.OpenApi.OData.Reader/Generator/OpenApiSchemaGenerator.cs

@@ -15,7 +15,7 @@
 using Microsoft.OpenApi.Exceptions;
 using System.Linq;
 using Microsoft.OpenApi.Interfaces;
-using Microsoft.OpenApi.OData.OpenApiExtensions;
+using Microsoft.OpenApi.MicrosoftExtensions;
 using Microsoft.OpenApi.OData.Vocabulary.Core;
 
 namespace Microsoft.OpenApi.OData.Generator
@@ -324,9 +324,8 @@ public static OpenApiSchema CreateEnumTypeSchema(this ODataContext context, IEdm
                 var enumFlagsExtension = new OpenApiEnumFlagsExtension
                 {
                     IsFlags = true,
-                    Style = "simple"
                 };
-                schema.Extensions.Add(enumFlagsExtension.Name, enumFlagsExtension);
+                schema.Extensions.Add(OpenApiEnumFlagsExtension.Name, enumFlagsExtension);
             }
 
             var extension = (context.Settings.OpenApiSpecVersion == OpenApiSpecVersion.OpenApi2_0 ||
@@ -345,7 +344,7 @@ public static OpenApiSchema CreateEnumTypeSchema(this ODataContext context, IEdm
             }
 
             if(extension?.ValuesDescriptions.Any() ?? false)
-                schema.Extensions.Add(extension.Name, extension);
+                schema.Extensions.Add(OpenApiEnumValuesDescriptionExtension.Name, extension);
             schema.Title = enumType.Name;
             return schema;
         }

src/Microsoft.OpenApi.OData.Reader/Microsoft.OpenAPI.OData.Reader.csproj

@@ -45,7 +45,7 @@
       <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
     </PackageReference>
     <PackageReference Include="Microsoft.OData.Edm" Version="7.18.0" />
-    <PackageReference Include="Microsoft.OpenApi" Version="1.6.7" />
+    <PackageReference Include="Microsoft.OpenApi" Version="1.6.8" />
     <PackageReference Include="Microsoft.SourceLink.GitHub" Version="1.1.1">
       <PrivateAssets>all</PrivateAssets>
       <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>

src/Microsoft.OpenApi.OData.Reader/OpenApiExtensions/OpenApiDeprecationExtension.cs

@@ -4,57 +4,23 @@
 // ------------------------------------------------------------
 
 using System;
-using Microsoft.OpenApi.Interfaces;
-using Microsoft.OpenApi.OData.Common;
-using Microsoft.OpenApi.Writers;
 
 namespace Microsoft.OpenApi.OData.OpenApiExtensions;
 
-/// <summary>
-/// Extension element for OpenAPI to add deprecation information. x-ms-deprecation
-/// </summary>
-public class OpenApiDeprecationExtension : IOpenApiExtension
+/// <inheritdoc />
+[Obsolete("This class is deprecated. Use Microsoft.OpenApi.MicrosoftExtensions.OpenApiDeprecationExtension instead.")]
+public class OpenApiDeprecationExtension : Microsoft.OpenApi.MicrosoftExtensions.OpenApiDeprecationExtension
 {
     /// <summary>
-    /// Name of the extension as used in the description.
+    /// Name of the extension use in OpenAPI document.
     /// </summary>
-    public string Name => "x-ms-deprecation";
+    public new string Name => Microsoft.OpenApi.MicrosoftExtensions.OpenApiDeprecationExtension.Name;
     /// <summary>
     /// The date at which the element has been/will be removed entirely from the service.
     /// </summary>
-    public DateTime? RemovalDate { get; set; }
+    public new DateTime? RemovalDate { get => base.RemovalDate.HasValue ? base.RemovalDate.Value.DateTime : default; set => base.RemovalDate = value.HasValue ? new DateTimeOffset(value.Value) : default; }
     /// <summary>
     /// The date at which the element has been/will be deprecated.
     /// </summary>
-    public DateTime? Date { get; set; }
-    /// <summary>
-    /// The version this revision was introduced.
-    /// </summary>
-    public string Version { get; set; }
-    /// <summary>
-    /// The description of the revision.
-    /// </summary>
-    public string Description { get; set; }
-	/// <inheritdoc />
-    public void Write(IOpenApiWriter writer, OpenApiSpecVersion specVersion)
-    {
-        if(writer == null)
-            throw new ArgumentNullException(nameof(writer));
-
-        if(RemovalDate.HasValue || Date.HasValue || !string.IsNullOrEmpty(Version) || !string.IsNullOrEmpty(Description))
-        {
-            writer.WriteStartObject();
-
-            if(RemovalDate.HasValue)
-                writer.WriteProperty(nameof(RemovalDate).ToFirstCharacterLowerCase(), RemovalDate.Value);
-            if(Date.HasValue)
-                writer.WriteProperty(nameof(Date).ToFirstCharacterLowerCase(), Date.Value);
-            if(!string.IsNullOrEmpty(Version))
-                writer.WriteProperty(nameof(Version).ToFirstCharacterLowerCase(), Version);
-            if(!string.IsNullOrEmpty(Description))
-                writer.WriteProperty(nameof(Description).ToFirstCharacterLowerCase(), Description);
-
-            writer.WriteEndObject();
-        }
-    } 
+    public new DateTime? Date { get => base.Date.HasValue ? base.Date.Value.DateTime : default; set => base.Date = value.HasValue ? new DateTimeOffset(value.Value) : default; }
 }

src/Microsoft.OpenApi.OData.Reader/OpenApiExtensions/OpenApiEnumFlagsExtension.cs

@@ -4,38 +4,15 @@
 // ------------------------------------------------------------
 
 using System;
-using Microsoft.OpenApi.Interfaces;
-using Microsoft.OpenApi.OData.Common;
-using Microsoft.OpenApi.Writers;
 
 namespace Microsoft.OpenApi.OData.OpenApiExtensions;
 
-/// <summary>
-/// Extension element for OpenAPI to add deprecation information. x-ms-enum-flags
-/// </summary>
-public class OpenApiEnumFlagsExtension : IOpenApiExtension
+/// <inheritdoc />
+[Obsolete("This class is deprecated. Use Microsoft.OpenApi.MicrosoftExtensions.OpenApiEnumFlagsExtension instead.")]
+public class OpenApiEnumFlagsExtension : Microsoft.OpenApi.MicrosoftExtensions.OpenApiEnumFlagsExtension
 {
     /// <summary>
     /// Name of the extension as used in the description.
     /// </summary>
-    public string Name => "x-ms-enum-flags";
-    /// <summary>
-    /// Whether the enum is a flagged enum.
-    /// </summary>
-    public bool IsFlags { get; set; }
-    /// <summary>
-    /// The serialization style of the flagged enum.
-    /// </summary>
-    public string Style { get; set; }
-	/// <inheritdoc />
-    public void Write(IOpenApiWriter writer, OpenApiSpecVersion specVersion)
-    {
-        if(writer == null)
-            throw new ArgumentNullException(nameof(writer));
-
-        writer.WriteStartObject();
-        writer.WriteProperty(nameof(IsFlags).ToFirstCharacterLowerCase(), IsFlags);
-        writer.WriteProperty(nameof(Style).ToFirstCharacterLowerCase(),Style);
-        writer.WriteEndObject();
-    } 
+    public new string Name => Microsoft.OpenApi.MicrosoftExtensions.OpenApiEnumFlagsExtension.Name;
 }

src/Microsoft.OpenApi.OData.Reader/OpenApiExtensions/OpenApiPrimaryErrorMessageExtension.cs

@@ -4,42 +4,11 @@
 // ------------------------------------------------------------
 
 using System;
-using Microsoft.OpenApi.Any;
-using Microsoft.OpenApi.Interfaces;
-using Microsoft.OpenApi.Writers;
 
 namespace Microsoft.OpenApi.OData.OpenApiExtensions;
 
-/// <summary>
-/// Extension element for OpenAPI to add tag the primary error message to use on error types. x-ms-primary-error-message
-/// </summary>
-public class OpenApiPrimaryErrorMessageExtension : IOpenApiExtension
+/// <inheritdoc />
+[Obsolete("This class is deprecated. Use Microsoft.OpenApi.MicrosoftExtensions.OpenApiPrimaryErrorMessageExtension instead.")]
+public class OpenApiPrimaryErrorMessageExtension : Microsoft.OpenApi.MicrosoftExtensions.OpenApiPrimaryErrorMessageExtension
 {
-	/// <summary>
-	/// Name of the extension as used in the description.
-	/// </summary>
-	public static string Name => "x-ms-primary-error-message";
-	/// <inheritdoc />
-    public void Write(IOpenApiWriter writer, OpenApiSpecVersion specVersion)
-    {
-        if(writer == null)
-            throw new ArgumentNullException(nameof(writer));
-		writer.WriteValue(IsPrimaryErrorMessage);
-    }
-	/// <summary>
-	/// Whether this property is the primary error message to use on error types.
-	/// </summary>
-	public bool IsPrimaryErrorMessage { get; set; }
-	/// <summary>
-    /// Parses the <see cref="IOpenApiAny"/> to <see cref="OpenApiPrimaryErrorMessageExtension"/>.
-    /// </summary>
-    /// <param name="source">The source object.</param>
-    /// <returns>The <see cref="OpenApiPrimaryErrorMessageExtension"/>.</returns>
-	public static OpenApiPrimaryErrorMessageExtension Parse(IOpenApiAny source)
-	{
-		if (source is not OpenApiBoolean rawObject) throw new ArgumentOutOfRangeException(nameof(source));
-		return new OpenApiPrimaryErrorMessageExtension() {
-			IsPrimaryErrorMessage = rawObject.Value
-		};
-	}
 }