fix: an issue where deprecation extension parsing would fail

src/Microsoft.OpenApi.Hidi/Extensions/OpenApiExtensibleExtensions.cs

@@ -1,6 +1,7 @@
 using Microsoft.OpenApi.Any;
 using Microsoft.OpenApi.Interfaces;
 using System.Collections.Generic;
+using System.Text.Json.Nodes;
 
 namespace Microsoft.OpenApi.Hidi.Extensions
 {
@@ -14,9 +15,9 @@ internal static class OpenApiExtensibleExtensions
         /// <returns>A <see cref="string"/> value matching the provided extensionKey. Return null when extensionKey is not found. </returns>
         internal static string GetExtension(this IDictionary<string, IOpenApiExtension> extensions, string extensionKey)
         {
-            if (extensions.TryGetValue(extensionKey, out var value) && value is OpenApiAny castValue)
+            if (extensions.TryGetValue(extensionKey, out var value) && value is OpenApiAny { Node: JsonValue castValue } && castValue.TryGetValue<string>(out var stringValue))
             {
-                return castValue.Node.GetValue<string>();
+                return stringValue;
             }
             return string.Empty;
         }

src/Microsoft.OpenApi/MicrosoftExtensions/OpenApiDeprecationExtension.cs

@@ -9,6 +9,8 @@
 using Microsoft.OpenApi.Interfaces;
 using Microsoft.OpenApi.Writers;
 using System.Text.Json.Nodes;
+using System.Text.Json;
+using System.Globalization;
 
 namespace Microsoft.OpenApi.MicrosoftExtensions;
 
@@ -71,6 +73,35 @@ public void Write(IOpenApiWriter writer, OpenApiSpecVersion specVersion)
             writer.WriteEndObject();
         }
     }
+    private static readonly DateTimeStyles datesStyle = DateTimeStyles.AssumeUniversal | DateTimeStyles.RoundtripKind;
+    private static DateTimeOffset? GetDateTimeOffsetValue(string propertyName, JsonObject rawObject)
+    {
+        if (!rawObject.TryGetPropertyValue(propertyName.ToFirstCharacterLowerCase(), out var jsonNode) ||
+            jsonNode is not JsonValue jsonValue ||
+            jsonNode.GetValueKind() is not JsonValueKind.String)
+            return null;
+
+        if (jsonValue.TryGetValue<string>(out var strValue) &&
+            DateTimeOffset.TryParse(strValue, CultureInfo.InvariantCulture, datesStyle, out var parsedValue))
+        {
+            return parsedValue;
+        }
+        if (jsonValue.TryGetValue<DateTimeOffset>(out var returnedDto))
+        {
+            return returnedDto;
+        }
+        if (jsonValue.TryGetValue<DateTime>(out var returnedDt))
+        {
+            return new DateTimeOffset(returnedDt, TimeSpan.FromHours(0));
+        }
+        #if NET6_0_OR_GREATER
+        if (jsonValue.TryGetValue<DateOnly>(out var returnedDo))
+        {
+            return new(returnedDo.Year, returnedDo.Month, returnedDo.Day, 0, 0, 0, TimeSpan.FromHours(0));
+        }
+        #endif
+        return null;
+    }
     /// <summary>
     /// Parses the <see cref="OpenApiAny"/> to <see cref="OpenApiDeprecationExtension"/>.
     /// </summary>
@@ -80,15 +111,15 @@ public void Write(IOpenApiWriter writer, OpenApiSpecVersion specVersion)
     public static OpenApiDeprecationExtension Parse(JsonNode source)
     {
         if (source is not JsonObject rawObject) return null;
-        var extension = new OpenApiDeprecationExtension();
-        if (rawObject.TryGetPropertyValue(nameof(RemovalDate).ToFirstCharacterLowerCase(), out var removalDate) && removalDate is JsonNode removalDateValue)
-            extension.RemovalDate = removalDateValue.GetValue<DateTimeOffset>();
-        if (rawObject.TryGetPropertyValue(nameof(Date).ToFirstCharacterLowerCase(), out var date) && date is JsonNode dateValue)
-            extension.Date = dateValue.GetValue<DateTimeOffset>();
-        if (rawObject.TryGetPropertyValue(nameof(Version).ToFirstCharacterLowerCase(), out var version) && version is JsonNode versionValue)
-            extension.Version = versionValue.GetValue<string>();
-        if (rawObject.TryGetPropertyValue(nameof(Description).ToFirstCharacterLowerCase(), out var description) && description is JsonNode descriptionValue)
-            extension.Description = descriptionValue.GetValue<string>();
+        var extension = new OpenApiDeprecationExtension
+        {
+            RemovalDate = GetDateTimeOffsetValue(nameof(RemovalDate), rawObject),
+            Date = GetDateTimeOffsetValue(nameof(Date), rawObject)
+        };
+        if (rawObject.TryGetPropertyValue(nameof(Version).ToFirstCharacterLowerCase(), out var version) && version is JsonValue versionValue && versionValue.TryGetValue<string>(out var versionStr))
+            extension.Version = versionStr;
+        if (rawObject.TryGetPropertyValue(nameof(Description).ToFirstCharacterLowerCase(), out var description) && description is JsonValue descriptionValue && descriptionValue.TryGetValue<string>(out var descriptionStr))
+            extension.Description = descriptionStr;
         return extension;
     }
 }

src/Microsoft.OpenApi/MicrosoftExtensions/OpenApiEnumFlagsExtension.cs

@@ -47,9 +47,9 @@ public static OpenApiEnumFlagsExtension Parse(JsonNode source)
     {
         if (source is not JsonObject rawObject) throw new ArgumentOutOfRangeException(nameof(source));
         var extension = new OpenApiEnumFlagsExtension();
-        if (rawObject.TryGetPropertyValue(nameof(IsFlags).ToFirstCharacterLowerCase(), out var flagsValue) && flagsValue is JsonNode isFlags)
+        if (rawObject.TryGetPropertyValue(nameof(IsFlags).ToFirstCharacterLowerCase(), out var flagsValue) && flagsValue is JsonValue isFlags && isFlags.TryGetValue<bool>(out var isFlagsValue))
         {
-            extension.IsFlags = isFlags.GetValue<bool>();
+            extension.IsFlags = isFlagsValue;
         }
         return extension;
     }

src/Microsoft.OpenApi/MicrosoftExtensions/OpenApiEnumValuesDescriptionExtension.cs

@@ -96,15 +96,15 @@ public EnumDescription()
     public EnumDescription(JsonObject source)
     {
         if (source is null) throw new ArgumentNullException(nameof(source));
-        if (source.TryGetPropertyValue(nameof(Value).ToFirstCharacterLowerCase(), out var rawValue) && rawValue is JsonNode value)
-            if (value.GetValueKind() == JsonValueKind.Number)
-                Value = value.GetValue<decimal>().ToString(CultureInfo.InvariantCulture);
-            else
-                Value = value.GetValue<string>();
-        if (source.TryGetPropertyValue(nameof(Description).ToFirstCharacterLowerCase(), out var rawDescription) && rawDescription is JsonNode description)
-            Description = description.GetValue<string>();
-        if (source.TryGetPropertyValue(nameof(Name).ToFirstCharacterLowerCase(), out var rawName) && rawName is JsonNode name)
-            Name = name.GetValue<string>();
+        if (source.TryGetPropertyValue(nameof(Value).ToFirstCharacterLowerCase(), out var rawValue) && rawValue is JsonValue value)
+            if (value.GetValueKind() == JsonValueKind.Number && value.TryGetValue<decimal>(out var decimalValue))
+                Value = decimalValue.ToString(CultureInfo.InvariantCulture);
+            else if (value.TryGetValue<string>(out var stringValue))
+                Value = stringValue;
+        if (source.TryGetPropertyValue(nameof(Description).ToFirstCharacterLowerCase(), out var rawDescription) && rawDescription is JsonValue description && description.TryGetValue<string>(out var stringValueDescription))
+            Description = stringValueDescription;
+        if (source.TryGetPropertyValue(nameof(Name).ToFirstCharacterLowerCase(), out var rawName) && rawName is JsonValue name && name.TryGetValue<string>(out var stringValueName))
+            Name = stringValueName;
     }
     /// <summary>
     /// The description for the enum symbol

src/Microsoft.OpenApi/MicrosoftExtensions/OpenApiPagingExtension.cs

@@ -75,19 +75,19 @@ public static OpenApiPagingExtension Parse(JsonNode source)
     {
         if (source is not JsonObject rawObject) return null;
         var extension = new OpenApiPagingExtension();
-        if (rawObject.TryGetPropertyValue(nameof(NextLinkName).ToFirstCharacterLowerCase(), out var nextLinkName) && nextLinkName is JsonNode nextLinkNameStr)
+        if (rawObject.TryGetPropertyValue(nameof(NextLinkName).ToFirstCharacterLowerCase(), out var nextLinkName) && nextLinkName is JsonValue nextLinkNameValue && nextLinkNameValue.TryGetValue<string>(out var nextLinkNameStr))
         {
-            extension.NextLinkName = nextLinkNameStr.GetValue<string>();
+            extension.NextLinkName = nextLinkNameStr;
         }
 
-        if (rawObject.TryGetPropertyValue(nameof(OperationName).ToFirstCharacterLowerCase(), out var opName) && opName is JsonNode opNameStr)
+        if (rawObject.TryGetPropertyValue(nameof(OperationName).ToFirstCharacterLowerCase(), out var opName) && opName is JsonValue opNameValue && opNameValue.TryGetValue<string>(out var opNameStr))
         {
-            extension.OperationName = opNameStr.GetValue<string>();
+            extension.OperationName = opNameStr;
         }
 
-        if (rawObject.TryGetPropertyValue(nameof(ItemName).ToFirstCharacterLowerCase(), out var itemName) && itemName is JsonNode itemNameStr)
+        if (rawObject.TryGetPropertyValue(nameof(ItemName).ToFirstCharacterLowerCase(), out var itemName) && itemName is JsonValue itemNameValue && itemNameValue.TryGetValue<string>(out var itemNameStr))
         {
-            extension.ItemName = itemNameStr.GetValue<string>();
+            extension.ItemName = itemNameStr;
         }
 
         return extension;

src/Microsoft.OpenApi/MicrosoftExtensions/OpenApiPrimaryErrorMessageExtension.cs

@@ -40,10 +40,10 @@ public void Write(IOpenApiWriter writer, OpenApiSpecVersion specVersion)
     /// <returns>The <see cref="OpenApiPrimaryErrorMessageExtension"/>.</returns>
     public static OpenApiPrimaryErrorMessageExtension Parse(JsonNode source)
     {
-        if (source is not JsonNode rawObject) return null;
+        if (source is not JsonValue rawObject) return null;
         return new()
         {
-            IsPrimaryErrorMessage = rawObject.GetValue<bool>()
+            IsPrimaryErrorMessage = rawObject.TryGetValue<bool>(out var value) && value
         };
     }
 }

src/Microsoft.OpenApi/MicrosoftExtensions/OpenApiReservedParameterExtension.cs

@@ -42,10 +42,10 @@ public bool? IsReserved
     /// <returns></returns>
     public static OpenApiReservedParameterExtension Parse(JsonNode source)
     {
-        if (source is not JsonNode rawBoolean) return null;
+        if (source is not JsonValue rawBoolean) return null;
         return new()
         {
-            IsReserved = rawBoolean.GetValue<bool>()
+            IsReserved = rawBoolean.TryGetValue<bool>(out var value) && value
         };
     }
 }

test/Microsoft.OpenApi.Tests/MicrosoftExtensions/OpenApiDeprecationExtensionTests.cs

@@ -75,10 +75,10 @@ public void Parses()
     {
         var oaiValue = new JsonObject
         {
-            { "date", new OpenApiAny(new DateTimeOffset(2023,05,04, 16, 0, 0, 0, 0, new(4, 0, 0))).Node},
-            { "removalDate", new OpenApiAny(new DateTimeOffset(2023,05,04, 16, 0, 0, 0, 0, new(4, 0, 0))).Node},
-            { "version", new OpenApiAny("v1.0").Node},
-            { "description", new OpenApiAny("removing").Node}
+            { "date", new DateTimeOffset(2023,05,04, 16, 0, 0, 0, 0, new(4, 0, 0))},
+            { "removalDate", new DateTimeOffset(2023,05,04, 16, 0, 0, 0, 0, new(4, 0, 0))},
+            { "version", "v1.0"},
+            { "description", "removing"}
         };
         var value = OpenApiDeprecationExtension.Parse(oaiValue);
         Assert.NotNull(value);
@@ -88,6 +88,23 @@ public void Parses()
         Assert.Equal(new DateTimeOffset(2023, 05, 04, 16, 0, 0, 0, 0, new(4, 0, 0)), value.RemovalDate);
     }
     [Fact]
+    public void ParsesStringValues()
+    {
+        var oaiValue = new JsonObject
+        {
+            { "date", "2023-05-04T16:00:00Z"},
+            { "removalDate", "2023-05-04"},
+            { "version", "v1.0"},
+            { "description", "removing"}
+        };
+        var value = OpenApiDeprecationExtension.Parse(oaiValue);
+        Assert.NotNull(value);
+        Assert.Equal("v1.0", value.Version);
+        Assert.Equal("removing", value.Description);
+        Assert.Equal(new DateTimeOffset(2023, 05, 04, 16, 0, 0, 0, 0, new(0, 0, 0)), value.Date);
+        Assert.Equal(new DateTimeOffset(2023, 05, 04, 0, 0, 0, 0, 0, new(0, 0, 0)), value.RemovalDate);
+    }
+    [Fact]
     public void Serializes()
     {
         var value = new OpenApiDeprecationExtension