prepare streaming in management sdk.

src/Microsoft.Azure.SignalR.Common/Utilities/Rest/BinaryPayloadContentBuilder.cs

@@ -1,26 +1,27 @@
-// Copyright (c) Microsoft. All rights reserved.
+// Copyright (c) Microsoft. All rights reserved.
 // Licensed under the MIT license. See LICENSE file in the project root for full license information.
 
+using System;
 using System.Collections.Generic;
 using System.Net.Http;
 
 using Microsoft.AspNetCore.SignalR.Protocol;
 
 #nullable enable
 
-namespace Microsoft.Azure.SignalR.Common
+namespace Microsoft.Azure.SignalR.Common;
+
+internal class BinaryPayloadContentBuilder : IPayloadContentBuilder
 {
-    internal class BinaryPayloadContentBuilder : IPayloadContentBuilder
+    private readonly IReadOnlyList<IHubProtocol> _hubProtocols;
+
+    public BinaryPayloadContentBuilder(IReadOnlyList<IHubProtocol> hubProtocols)
     {
-        private readonly IReadOnlyList<IHubProtocol> _hubProtocols;
-        public BinaryPayloadContentBuilder(IReadOnlyList<IHubProtocol> hubProtocols)
-        {
-            _hubProtocols = hubProtocols;
-        }
+        _hubProtocols = hubProtocols;
+    }
 
-        public HttpContent? Build(PayloadMessage? payload)
-        {
-            return payload == null ? null : (HttpContent)new BinaryPayloadMessageContent(payload, _hubProtocols);
-        }
+    public HttpContent? Build(HubMessage? payload, Type? typeHint)
+    {
+        return payload == null ? null : (HttpContent)new BinaryPayloadMessageContent(payload, _hubProtocols);
     }
 }

src/Microsoft.Azure.SignalR.Common/Utilities/Rest/BinaryPayloadMessageContent.cs

@@ -1,4 +1,4 @@
-// Copyright (c) Microsoft. All rights reserved.
+// Copyright (c) Microsoft. All rights reserved.
 // Licensed under the MIT license. See LICENSE file in the project root for full license information.
 
 using System;
@@ -15,51 +15,50 @@
 
 using Microsoft.AspNetCore.SignalR.Protocol;
 
-namespace Microsoft.Azure.SignalR.Common
+namespace Microsoft.Azure.SignalR.Common;
+
+internal class BinaryPayloadMessageContent : HttpContent
 {
-    internal class BinaryPayloadMessageContent : HttpContent
+    private static readonly Dictionary<string, byte[]> ProtocolMap = new(2)
     {
-        private static readonly Dictionary<string, byte[]> ProtocolMap = new Dictionary<string, byte[]>(2)
-        {
-            {Constants.Protocol.Json, Encoding.UTF8.GetBytes(Constants.Protocol.Json) },
-            {Constants.Protocol.MessagePack,Encoding.UTF8.GetBytes(Constants.Protocol.MessagePack)}
-        };
-        private static readonly MediaTypeHeaderValue ContentType = new("application/octet-stream");
+        {Constants.Protocol.Json, Encoding.UTF8.GetBytes(Constants.Protocol.Json) },
+        {Constants.Protocol.MessagePack,Encoding.UTF8.GetBytes(Constants.Protocol.MessagePack)}
+    };
 
-        private readonly PayloadMessage _payloadMessage;
-        private readonly IReadOnlyList<IHubProtocol> _hubProtocols;
+    private static readonly MediaTypeHeaderValue ContentType = new("application/octet-stream");
 
-        public BinaryPayloadMessageContent(PayloadMessage payloadMessage, IReadOnlyList<IHubProtocol> hubProtocols)
-        {
-            _payloadMessage = payloadMessage ?? throw new ArgumentNullException(nameof(payloadMessage));
-            _hubProtocols = hubProtocols ?? throw new ArgumentNullException(nameof(hubProtocols));
-            Headers.ContentType = ContentType;
-        }
+    private readonly HubMessage _payloadMessage;
+    private readonly IReadOnlyList<IHubProtocol> _hubProtocols;
 
-        protected override async Task SerializeToStreamAsync(Stream stream, TransportContext context)
-        {
-            using var memoryBufferWriter = new MemoryBufferWriter();
-            WriteMessageCore(memoryBufferWriter);
-            await memoryBufferWriter.CopyToAsync(stream);
-        }
+    public BinaryPayloadMessageContent(HubMessage payloadMessage, IReadOnlyList<IHubProtocol> hubProtocols)
+    {
+        _payloadMessage = payloadMessage ?? throw new ArgumentNullException(nameof(payloadMessage));
+        _hubProtocols = hubProtocols ?? throw new ArgumentNullException(nameof(hubProtocols));
+        Headers.ContentType = ContentType;
+    }
 
-        protected override bool TryComputeLength(out long length)
-        {
-            length = 0;
-            return false;
-        }
+    protected override async Task SerializeToStreamAsync(Stream stream, TransportContext context)
+    {
+        using var memoryBufferWriter = new MemoryBufferWriter();
+        WriteMessageCore(memoryBufferWriter);
+        await memoryBufferWriter.CopyToAsync(stream);
+    }
 
-        private void WriteMessageCore(IBufferWriter<byte> bufferWriter)
+    protected override bool TryComputeLength(out long length)
+    {
+        length = 0;
+        return false;
+    }
+
+    private void WriteMessageCore(IBufferWriter<byte> bufferWriter)
+    {
+        var messagePackWriter = new MessagePackWriter(bufferWriter);
+        messagePackWriter.WriteMapHeader(_hubProtocols.Count);
+        foreach (var hubProtocol in _hubProtocols)
         {
-            var invocationMessage = new InvocationMessage(_payloadMessage.Target, _payloadMessage.Arguments);
-            var messagePackWriter = new MessagePackWriter(bufferWriter);
-            messagePackWriter.WriteMapHeader(_hubProtocols.Count);
-            foreach (var hubProtocol in _hubProtocols)
-            {
-                messagePackWriter.WriteString(ProtocolMap[hubProtocol.Name]);
-                messagePackWriter.Write(hubProtocol.GetMessageBytes(invocationMessage).Span);
-            }
-            messagePackWriter.Flush();
+            messagePackWriter.WriteString(ProtocolMap[hubProtocol.Name]);
+            messagePackWriter.Write(hubProtocol.GetMessageBytes(_payloadMessage).Span);
         }
+        messagePackWriter.Flush();
     }
 }

src/Microsoft.Azure.SignalR.Common/Utilities/Rest/IPayloadContentBuilder.cs

@@ -1,14 +1,16 @@
-// Copyright (c) Microsoft. All rights reserved.
+// Copyright (c) Microsoft. All rights reserved.
 // Licensed under the MIT license. See LICENSE file in the project root for full license information.
 
+using System;
 using System.Net.Http;
 
+using Microsoft.AspNetCore.SignalR.Protocol;
+
 #nullable enable
 
-namespace Microsoft.Azure.SignalR.Common
+namespace Microsoft.Azure.SignalR.Common;
+
+internal interface IPayloadContentBuilder
 {
-    internal interface IPayloadContentBuilder
-    {
-        HttpContent? Build(PayloadMessage? payload);
-    }
+    HttpContent? Build(HubMessage? payload, Type? typeHint);
 }

src/Microsoft.Azure.SignalR.Common/Utilities/Rest/JsonPayloadContentBuilder.cs

@@ -1,25 +1,27 @@
-// Copyright (c) Microsoft. All rights reserved.
+// Copyright (c) Microsoft. All rights reserved.
 // Licensed under the MIT license. See LICENSE file in the project root for full license information.
 
+using System;
 using System.Net.Http;
 
 using Azure.Core.Serialization;
 
+using Microsoft.AspNetCore.SignalR.Protocol;
+
 #nullable enable
-namespace Microsoft.Azure.SignalR.Common
+namespace Microsoft.Azure.SignalR.Common;
+
+internal class JsonPayloadContentBuilder : IPayloadContentBuilder
 {
-    internal class JsonPayloadContentBuilder : IPayloadContentBuilder
-    {
-        private readonly ObjectSerializer _jsonObjectSerializer;
+    private readonly ObjectSerializer _jsonObjectSerializer;
 
-        public JsonPayloadContentBuilder(ObjectSerializer jsonObjectSerializer)
-        {
-            _jsonObjectSerializer = jsonObjectSerializer;
-        }
+    public JsonPayloadContentBuilder(ObjectSerializer jsonObjectSerializer)
+    {
+        _jsonObjectSerializer = jsonObjectSerializer;
+    }
 
-        public HttpContent? Build(PayloadMessage? payload)
-        {
-            return payload == null ? null : new JsonPayloadMessageContent(payload, _jsonObjectSerializer);
-        }
+    public HttpContent? Build(HubMessage? payload, Type? typeHint)
+    {
+        return payload == null ? null : new JsonPayloadMessageContent(payload, _jsonObjectSerializer, typeHint);
     }
-}
+}

src/Microsoft.Azure.SignalR.Common/Utilities/Rest/JsonPayloadMessageContent.cs

@@ -1,6 +1,7 @@
-// Copyright (c) Microsoft. All rights reserved.
+// Copyright (c) Microsoft. All rights reserved.
 // Licensed under the MIT license. See LICENSE file in the project root for full license information.
 
+using System;
 using System.IO;
 using System.Net;
 using System.Net.Http;
@@ -10,45 +11,55 @@
 
 using Azure.Core.Serialization;
 
-namespace Microsoft.Azure.SignalR
+using Microsoft.AspNetCore.SignalR.Protocol;
+
+namespace Microsoft.Azure.SignalR;
+
+internal class JsonPayloadMessageContent : HttpContent
 {
-    internal class JsonPayloadMessageContent : HttpContent
+    private static readonly MediaTypeHeaderValue ContentType = new("application/json")
     {
-        private static readonly MediaTypeHeaderValue ContentType = new("application/json")
-        {
-            CharSet = "utf-8"
-        };
-        private static readonly JsonWriterOptions JsonWriterOptions = new()
-        {
-            // We must skip validation because what we break the writing midway and write JSON in other ways.
-            SkipValidation = true
-        };
-        private readonly PayloadMessage _payloadMessage;
-        private readonly ObjectSerializer _jsonObjectSerializer;
+        CharSet = "utf-8"
+    };
+    private static readonly JsonWriterOptions JsonWriterOptions = new()
+    {
+        // We must skip validation because what we break the writing midway and write JSON in other ways.
+        SkipValidation = true
+    };
+    private readonly HubMessage _payloadMessage;
+    private readonly ObjectSerializer _jsonObjectSerializer;
+    private readonly Type _typeHint;
 
-        public JsonPayloadMessageContent(PayloadMessage payloadMessage, ObjectSerializer jsonObjectSerializer)
-        {
-            _payloadMessage = payloadMessage ?? throw new System.ArgumentNullException(nameof(payloadMessage));
-            _jsonObjectSerializer = jsonObjectSerializer;
-            Headers.ContentType = ContentType;
-        }
+    public JsonPayloadMessageContent(HubMessage payloadMessage, ObjectSerializer jsonObjectSerializer, Type typeHint)
+    {
+        _payloadMessage = payloadMessage ?? throw new System.ArgumentNullException(nameof(payloadMessage));
+        _jsonObjectSerializer = jsonObjectSerializer;
+        _typeHint = typeHint;
+        Headers.ContentType = ContentType;
+    }
 
-        protected override async Task SerializeToStreamAsync(Stream stream, TransportContext context)
+    protected override async Task SerializeToStreamAsync(Stream stream, TransportContext context)
+    {
+        if (_payloadMessage is InvocationMessage invocationMessage)
         {
             using var jsonWriter = new Utf8JsonWriter(stream, JsonWriterOptions);
             jsonWriter.WriteStartObject();
-            jsonWriter.WriteString(nameof(PayloadMessage.Target), _payloadMessage.Target);
+            jsonWriter.WriteString(nameof(PayloadMessage.Target), invocationMessage.Target);
             jsonWriter.WritePropertyName(nameof(PayloadMessage.Arguments));
             await jsonWriter.FlushAsync();
-            await _jsonObjectSerializer.SerializeAsync(stream, _payloadMessage.Arguments, typeof(object[]), default);
+            await _jsonObjectSerializer.SerializeAsync(stream, invocationMessage.Arguments, typeof(object[]), default);
             jsonWriter.WriteEndObject();
             await jsonWriter.FlushAsync();
         }
-
-        protected override bool TryComputeLength(out long length)
+        else if (_payloadMessage is StreamItemMessage streamItemMessage)
         {
-            length = 0;
-            return false;
+            await _jsonObjectSerializer.SerializeAsync(stream, streamItemMessage.Item, _typeHint, default);
         }
     }
+
+    protected override bool TryComputeLength(out long length)
+    {
+        length = 0;
+        return false;
+    }
 }