async process on worker of AddRectangle

dotnet/AipsCore/Application/Common/Message/AddRectangle/AddRectangleMessage.cs

@@ -0,0 +1,6 @@
+using AipsCore.Application.Abstract.MessageBroking;
+using AipsCore.Application.Models.Shape.Command.CreateRectangle;
+
+namespace AipsCore.Application.Common.Message.AddRectangle;
+
+public record AddRectangleMessage(CreateRectangleCommand Command) : IMessage;

dotnet/AipsCore/Application/Common/Message/AddRectangle/AddRectangleMessageHandler.cs

@@ -0,0 +1,19 @@
+using AipsCore.Application.Abstract;
+using AipsCore.Application.Abstract.MessageBroking;
+
+namespace AipsCore.Application.Common.Message.AddRectangle;
+
+public class AddRectangleMessageHandler : IMessageHandler<AddRectangleMessage>
+{
+    private readonly IDispatcher _dispatcher;
+
+    public AddRectangleMessageHandler(IDispatcher dispatcher)
+    {
+        _dispatcher = dispatcher;
+    }
+    
+    public async Task Handle(AddRectangleMessage message, CancellationToken cancellationToken)
+    {
+        await _dispatcher.Execute(message.Command, cancellationToken);
+    }
+}

dotnet/AipsCore/Application/Models/Shape/Command/CreateRectangle/CreateRectangleCommand.cs

@@ -4,6 +4,7 @@ using AipsCore.Domain.Models.Shape.ValueObjects;
 namespace AipsCore.Application.Models.Shape.Command.CreateRectangle;
 
 public record CreateRectangleCommand(
+    string Id,
     string WhiteboardId,
     string AuthorId,
     int PositionX,
@@ -11,4 +12,4 @@ public record CreateRectangleCommand(
     string Color,
     int EndPositionX,
     int EndPositionY,
-    int BorderThickness) : ICommand<ShapeId>;
+    int BorderThickness) : ICommand;

dotnet/AipsCore/Application/Models/Shape/Command/CreateRectangle/CreateRectangleCommandHandler.cs

@@ -13,7 +13,7 @@ using AipsCore.Domain.Models.Whiteboard.ValueObjects;
 
 namespace AipsCore.Application.Models.Shape.Command.CreateRectangle;
 
-public class CreateRectangleCommandHandler : ICommandHandler<CreateRectangleCommand, ShapeId>
+public class CreateRectangleCommandHandler : ICommandHandler<CreateRectangleCommand>
 {
     private readonly IShapeRepository _shapeRepository;
     private readonly IWhiteboardRepository _whiteboardRepository;
@@ -28,11 +28,12 @@ public class CreateRectangleCommandHandler : ICommandHandler<CreateRectangleComm
         _unitOfWork = unitOfWork;
     }
     
-    public async Task<ShapeId> Handle(CreateRectangleCommand command, CancellationToken cancellationToken = default)
+    public async Task Handle(CreateRectangleCommand command, CancellationToken cancellationToken = default)
     {
         Validate(command);
         
         var rectangle = Rectangle.Create(
+            command.Id,
             command.WhiteboardId,
             command.AuthorId,
             command.PositionX, command.PositionY,
@@ -43,8 +44,6 @@ public class CreateRectangleCommandHandler : ICommandHandler<CreateRectangleComm
 
         await _shapeRepository.SaveAsync(rectangle, cancellationToken);
         await _unitOfWork.SaveChangesAsync(cancellationToken);
-
-        return rectangle.Id;
     }
 
     private void Validate(CreateRectangleCommand command)

dotnet/AipsCore/Infrastructure/MessageBroking/RabbitMQ/RabbitMqSubscriber.cs

@@ -30,6 +30,7 @@ public class RabbitMqSubscriber : IMessageSubscriber
 
         await channel.QueueDeclareAsync(
             queue: GetQueueName<T>(),
+            autoDelete: false,
             durable: true);
         
         await channel.QueueBindAsync(

dotnet/AipsRT/AipsRT.csproj

@@ -15,7 +15,7 @@
     </ItemGroup>
 
     <ItemGroup>
-      <Folder Include="Services\" />
+      <Folder Include="Hubs\Dtos\" />
     </ItemGroup>
 
 </Project>

dotnet/AipsRT/Hubs/Dtos/AddRectangleDto.cs

@@ -1 +0,0 @@
-namespace AipsRT.Hubs.Dtos;

dotnet/AipsRT/Hubs/WhiteboardHub.cs

@@ -1,5 +1,7 @@
+using AipsCore.Application.Abstract.MessageBroking;
 using AipsRT.Model.Whiteboard;
 using AipsRT.Model.Whiteboard.Shapes;
+using AipsRT.Services.Interfaces;
 using Microsoft.AspNetCore.Authorization;
 using Microsoft.AspNetCore.SignalR;
 
@@ -9,10 +11,12 @@ namespace AipsRT.Hubs;
 public class WhiteboardHub : Hub
 {
     private readonly WhiteboardManager _whiteboardManager;
+    private readonly IMessagingService _messagingService;
 
-    public WhiteboardHub(WhiteboardManager whiteboardManager)
+    public WhiteboardHub(WhiteboardManager whiteboardManager, IMessagingService messagingService)
     {
         _whiteboardManager = whiteboardManager;
+        _messagingService = messagingService;
     }
 
     public async Task JoinWhiteboard(Guid whiteboardId)
@@ -41,6 +45,10 @@ public class WhiteboardHub : Hub
     {
         var whiteboard = _whiteboardManager.GetWhiteboardForUser(Guid.Parse(Context.UserIdentifier!))!;
 
+        rectangle.OwnerId = Guid.Parse(Context.UserIdentifier!);
+        
+        await _messagingService.CreatedRectangle(whiteboard.WhiteboardId, rectangle);
+        
         whiteboard.AddRectangle(rectangle);
         
         await Clients.GroupExcept(whiteboard.WhiteboardId.ToString(), Context.ConnectionId)

dotnet/AipsRT/Program.cs

@@ -1,6 +1,8 @@
 using AipsCore.Infrastructure.DI;
 using AipsRT.Hubs;
 using AipsRT.Model.Whiteboard;
+using AipsRT.Services;
+using AipsRT.Services.Interfaces;
 using DotNetEnv;
 using Microsoft.AspNetCore.SignalR;
 
@@ -16,6 +18,7 @@ builder.Services.AddAips(builder.Configuration);
 
 builder.Services.AddScoped<GetWhiteboardService>();
 builder.Services.AddSingleton<WhiteboardManager>();
+builder.Services.AddSingleton<IMessagingService, MessagingService>();
 
 builder.Services.AddCors(options =>
 {

dotnet/AipsRT/Services/Interfaces/IMessagingService.cs

@@ -0,0 +1,8 @@
+using AipsRT.Model.Whiteboard.Shapes;
+
+namespace AipsRT.Services.Interfaces;
+
+public interface IMessagingService
+{
+    Task CreatedRectangle(Guid whiteboardId, Rectangle rectangle);
+}

dotnet/AipsRT/Services/MessagingService.cs

@@ -0,0 +1,36 @@
+using AipsCore.Application.Abstract.MessageBroking;
+using AipsCore.Application.Common.Message.AddRectangle;
+using AipsCore.Application.Models.Shape.Command.CreateRectangle;
+using AipsRT.Model.Whiteboard.Shapes;
+using AipsRT.Services.Interfaces;
+
+namespace AipsRT.Services;
+
+public class MessagingService : IMessagingService
+{
+    private readonly IMessagePublisher _messagePublisher;
+
+    public MessagingService(IMessagePublisher messagePublisher)
+    {
+        _messagePublisher = messagePublisher;
+    }
+    
+    public async Task CreatedRectangle(Guid whiteboardId, Rectangle rectangle)
+    {
+        var command = new CreateRectangleCommand(
+            rectangle.Id.ToString(),
+            whiteboardId.ToString(),
+            rectangle.OwnerId.ToString(),
+            rectangle.Position.X,
+            rectangle.Position.Y,
+            rectangle.Color,
+            rectangle.EndPosition.X,
+            rectangle.EndPosition.Y,
+            rectangle.BorderThickness
+        );
+
+        var message = new AddRectangleMessage(command);
+        
+        await _messagePublisher.PublishAsync(message);
+    }
+}

dotnet/AipsWorker/WorkerService.cs

@@ -2,6 +2,7 @@ using System.Reflection;
 using AipsCore.Application.Abstract;
 using AipsCore.Application.Abstract.MessageBroking;
 using AipsCore.Application.Common.Message.TestMessage;
+using AipsCore.Domain.Common.Validation;
 using AipsWorker.Utilities;
 using Microsoft.Extensions.Hosting;
 
@@ -48,7 +49,24 @@ public class WorkerService : BackgroundService
 
     private async Task HandleMessage<T>(T message, CancellationToken ct) where T : IMessage
     {
-        await _dispatcher.Execute(message, ct);
+        try
+        {
+            await _dispatcher.Execute(message, ct);
+        }
+        catch (ValidationException validationException)
+        {
+            Console.WriteLine("===Validation Exception: ");
+            foreach (var error in validationException.ValidationErrors)
+            {
+                Console.WriteLine(" * Code: " + error.Code);
+                Console.WriteLine(" * Message: " + error.Message);
+                Console.WriteLine("===================");
+            }
+        }
+        catch (Exception ex)
+        {
+            Console.WriteLine("Unhandled Exception: " + ex.Message);
+        }
     }
     
     private MethodInfo GetMessageHandleMethod(Type messageType)