private async Task SendDataToSocket <T>(string methodName, HubSocket socket, T data)
{
var hubData = new HubData()
{
Data = data,
MethodName = methodName,
PromiseId = -1
};
await socket.SendData(hubData);
}
public async Task AddSocket(WebSocket webSocket)
{
using var hubSocket = new HubSocket(Guid.NewGuid(), webSocket);
hubSocketRepository.AddOrUpdate(hubSocket.ID, hubSocket);
hubSocket.DataReceived += DataReceived;
DataReceived(this, new HubSocketEventArgs()
{
Data = JsonConvert.SerializeObject(new HubData()
{
MethodName = nameof(Hub.OnConnectedAsync)
}),
HubSocket = hubSocket
});
HubData hubSocketConnected = new HubData()
{
Data = hubSocket.ID,
MethodName = "HubSocketConnected"
};
await hubSocket.SendData(hubSocketConnected);
await hubSocket.ListenLoop(); // infinite loop until socket closed.
RemoveSocket(hubSocket.ID);
DataReceived(this, new HubSocketEventArgs()
{
Data = JsonConvert.SerializeObject(new HubData()
{
MethodName = nameof(Hub.OnDisconnectedAsync)
}),
HubSocket = hubSocket
});
}
public async void DataReceived(object sender, EventArgs e)
{
if (!(e is HubSocketEventArgs hubSocketEventArgs))
{
return;
}
try
{
foreach (var hubType in hubTypes)
{
Hub hub = serviceProvider.GetRequiredService(hubType) as Hub;
hub.Clients = serviceProvider.GetRequiredService <HubSocketClients>();
hub.Context = new HubSocketContext(hubSocketEventArgs.HubSocket);
HubData requestHubData = JsonConvert.DeserializeObject <HubData>(hubSocketEventArgs.Data);
string methodName = requestHubData.MethodName;
JObject data = requestHubData.Data as JObject;
var method = hub.GetType().GetMethod(methodName,
BindingFlags.IgnoreCase | BindingFlags.Public | BindingFlags.Instance);
if (method != null)
{
try
{
var methodParameters = method.GetParameters();
List <object> targetParams = null;
if (methodParameters.Any())
{
targetParams = new List <object>();
var jProperties = data?.Properties() ?? Enumerable.Empty <JProperty>();
foreach (var param in methodParameters)
{
var jProp = jProperties.SingleOrDefault(x => x.Name == param.Name);
if (jProp != null)
{
targetParams.Add(jProp.ToObject(param.ParameterType));
}
}
if (methodParameters.Any() && methodParameters.Count() != targetParams.Count())
{
throw new Exception($"Parameter mismatch. Method '{method.Name}' expects params: [" +
$"{string.Join(",", methodParameters.Select(x => $"{x.ParameterType.Name} {x.Name}"))}], but got [" +
string.Join(",", jProperties.Select(x => $"{x.Type} {x.Name}")) + "]");
}
}
var invokeResult = method.Invoke(hub, targetParams?.ToArray());
object response = null;
if (invokeResult is Task task)
{
await task.ConfigureAwait(false);
var resultProperty = task.GetType().GetProperty("Result");
response = resultProperty.GetValue(task);
}
else if (invokeResult != null)
{
response = invokeResult;
}
if (response != null)
{
HubData immediateResponse = new HubData()
{
Data = response,
MethodName = null,
PromiseId = requestHubData.PromiseId
};
await hubSocketEventArgs.HubSocket.SendData(immediateResponse);
}
}
catch (Exception ex)
{
await hub.Clients.SendToClient("Error", hub.Context.ConnectionId, ex);
}
}
}
}
catch
{
//log ex here
throw;
//await SendAll(ex);
}
}
