Renamed extension methods to match standard, adjusted some extension …

…method locations.

src/MassTransit.MessagePack/Configuration/MessagePackConfigurationExtensions.cs

@@ -5,19 +5,41 @@
 
 public static class MessagePackConfigurationExtensions
 {
-    public static void UseMessagePack(this IReceiveEndpointConfigurator configurator, bool isDefault = false)
+    /// <summary>
+    /// Use the MessagePack serializer as the default serializer for the receive endpoint
+    /// </summary>
+    /// <param name="configurator"></param>
+    /// <param name="isDefault"></param>
+    public static void UseMessagePackSerializer(this IReceiveEndpointConfigurator configurator, bool isDefault = true)
     {
         var factory = new MessagePackSerializerFactory();
 
         configurator.AddSerializer(factory, isDefault);
         configurator.AddDeserializer(factory, isDefault);
     }
 
-    public static void UseMessagePack(this IBusFactoryConfigurator configurator, bool isDefault = false)
+    /// <summary>
+    /// Use the MessagePack serializer
+    /// </summary>
+    /// <param name="configurator"></param>
+    /// <param name="isDefault"></param>
+    public static void UseMessagePackSerializer(this IBusFactoryConfigurator configurator, bool isDefault = true)
     {
         var factory = new MessagePackSerializerFactory();
 
         configurator.AddSerializer(factory, isDefault);
         configurator.AddDeserializer(factory, isDefault);
     }
+
+    /// <summary>
+    /// Use the MessagePack deserializer, optionally setting it as the default message deserializer if no content type is found.
+    /// </summary>
+    /// <param name="configurator"></param>
+    /// <param name="isDefault"></param>
+    public static void UseMessagePackDeserializer(this IBusFactoryConfigurator configurator, bool isDefault = false)
+    {
+        var factory = new MessagePackSerializerFactory();
+
+        configurator.AddDeserializer(factory, isDefault);
+    }
 }

src/MassTransit.MessagePack/MassTransit.MessagePack.csproj.DotSettings

@@ -0,0 +1,2 @@
+<wpf:ResourceDictionary xml:space="preserve" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" xmlns:s="clr-namespace:System;assembly=mscorlib" xmlns:ss="urn:shemas-jetbrains-com:settings-storage-xaml" xmlns:wpf="http://schemas.microsoft.com/winfx/2006/xaml/presentation">
+	<s:Boolean x:Key="/Default/CodeInspection/NamespaceProvider/NamespaceFoldersToSkip/=configuration/@EntryIndexedValue">True</s:Boolean></wpf:ResourceDictionary>

src/MassTransit/Serialization/SystemTextJsonExtensions.cs

@@ -0,0 +1,42 @@
+#nullable enable
+namespace MassTransit.Serialization;
+
+using System;
+using System.Text.Json;
+using Metadata;
+
+
+public static class SystemTextJsonExtensions
+{
+    public static T? GetObject<T>(this JsonElement jsonElement, JsonSerializerOptions options)
+        where T : class
+    {
+        if (typeof(T).IsInterface && MessageTypeCache<T>.IsValidMessageType)
+        {
+            var messageType = TypeMetadataCache<T>.ImplementationType;
+
+            if (jsonElement.Deserialize(messageType, options) is T obj)
+                return obj;
+        }
+
+        return jsonElement.Deserialize<T>(options);
+    }
+
+    public static T? Transform<T>(this object objectToTransform, JsonSerializerOptions options)
+        where T : class
+    {
+        var jsonElement = JsonSerializer.SerializeToElement(objectToTransform, options);
+
+        return jsonElement.GetObject<T>(options);
+    }
+
+    public static object? Transform(this object objectToTransform, Type targetType, JsonSerializerOptions options)
+    {
+        var jsonElement = JsonSerializer.SerializeToElement(objectToTransform, options);
+
+        if (targetType.IsInterface && MessageTypeCache.IsValidMessageType(targetType))
+            targetType = TypeMetadataCache.GetImplementationType(targetType);
+
+        return jsonElement.Deserialize(targetType, options);
+    }
+}