Add serializer adapter.

Source/MQTTnet.AspnetCore/Client/MqttClientConnectionContextFactory.cs

@@ -14,15 +14,13 @@ namespace MQTTnet.AspNetCore.Client
         {
             if (options == null) throw new ArgumentNullException(nameof(options));
 
-            var serializer = new MqttPacketSerializer { ProtocolVersion = options.ProtocolVersion };
-
             switch (options.ChannelOptions)
             {
                 case MqttClientTcpOptions tcpOptions:
                     {
                         var endpoint = new DnsEndPoint(tcpOptions.Server, tcpOptions.GetPort());
                         var tcpConnection = new TcpConnection(endpoint);
-                        return new MqttConnectionContext(serializer, tcpConnection);
+                        return new MqttConnectionContext(new MqttPacketSerializerAdapter(options.ProtocolVersion), tcpConnection);
                     }
                 default:
                     {

Source/MQTTnet.AspnetCore/MqttConnectionContext.cs

@@ -12,17 +12,15 @@ namespace MQTTnet.AspNetCore
 {
     public class MqttConnectionContext : IMqttChannelAdapter
     {
-        public MqttConnectionContext(
-            IMqttPacketSerializer packetSerializer,
-            ConnectionContext connection)
+        public MqttConnectionContext(MqttPacketSerializerAdapter packetSerializerAdapter, ConnectionContext connection)
         {
-            PacketSerializer = packetSerializer;
-            Connection = connection;
+            PacketSerializerAdapter = packetSerializerAdapter ?? throw new ArgumentNullException(nameof(packetSerializerAdapter));
+            Connection = connection ?? throw new ArgumentNullException(nameof(connection));
         }
 
         public string Endpoint => Connection.ConnectionId;
         public ConnectionContext Connection { get; }
-        public IMqttPacketSerializer PacketSerializer { get; }
+        public MqttPacketSerializerAdapter PacketSerializerAdapter { get; }
         public event EventHandler ReadingPacketStarted;
         public event EventHandler ReadingPacketCompleted;
 
@@ -71,7 +69,7 @@ namespace MQTTnet.AspNetCore
                     {
                         if (!buffer.IsEmpty)
                         {
-                            if (PacketSerializer.TryDeserialize(buffer, out var packet, out consumed, out observed))
+                            if (PacketSerializerAdapter.Serializer.TryDeserialize(buffer, out var packet, out consumed, out observed))
                             {
                                 return packet;
                             }
@@ -106,7 +104,7 @@ namespace MQTTnet.AspNetCore
 
         public Task SendPacketAsync(MqttBasePacket packet, CancellationToken cancellationToken)
         {
-            var buffer = PacketSerializer.Serialize(packet);
+            var buffer = PacketSerializerAdapter.Serialize(packet);
             return Connection.Transport.Output.WriteAsync(buffer.AsMemory(), cancellationToken).AsTask();
         }
 

Source/MQTTnet.AspnetCore/MqttConnectionHandler.cs

@@ -9,7 +9,7 @@ using System.Threading.Tasks;
 namespace MQTTnet.AspNetCore
 {
     public class MqttConnectionHandler : ConnectionHandler, IMqttServerAdapter
-    {        
+    {
         public event EventHandler<MqttServerAdapterClientAcceptedEventArgs> ClientAccepted;
 
         public override async Task OnConnectedAsync(ConnectionContext connection)
@@ -21,9 +21,7 @@ namespace MQTTnet.AspNetCore
                 transferFormatFeature.ActiveFormat = TransferFormat.Binary;
             }
 
-
-            var serializer = new MqttPacketSerializer();
-            using (var adapter = new MqttConnectionContext(serializer, connection))
+            using (var adapter = new MqttConnectionContext(new MqttPacketSerializerAdapter(), connection))
             {
                 var args = new MqttServerAdapterClientAcceptedEventArgs(adapter);
                 ClientAccepted?.Invoke(this, args);
@@ -41,7 +39,7 @@ namespace MQTTnet.AspNetCore
         {
             return Task.CompletedTask;
         }
-        
+
         public void Dispose()
         {
         }

Source/MQTTnet.AspnetCore/MqttWebSocketServerAdapter.cs

@@ -27,7 +27,7 @@ namespace MQTTnet.AspNetCore
         {
             if (webSocket == null) throw new ArgumentNullException(nameof(webSocket));
 
-            var clientAdapter = new MqttChannelAdapter(new MqttWebSocketChannel(webSocket, endpoint), new MqttPacketSerializer(), new MqttNetLogger().CreateChildLogger(nameof(MqttWebSocketServerAdapter)));
+            var clientAdapter = new MqttChannelAdapter(new MqttWebSocketChannel(webSocket, endpoint), new MqttPacketSerializerAdapter(), new MqttNetLogger().CreateChildLogger(nameof(MqttWebSocketServerAdapter)));
 
             var eventArgs = new MqttServerAdapterClientAcceptedEventArgs(clientAdapter);
             ClientAccepted?.Invoke(this, eventArgs);
@@ -37,7 +37,7 @@ namespace MQTTnet.AspNetCore
                 await eventArgs.SessionTask.ConfigureAwait(false);
             }
         }
-        
+
         public void Dispose()
         {
             StopAsync().GetAwaiter().GetResult();