protected virtual async Task SendMessageToUserAsync(ChatMessage chatMessage)
{
var onlineClientContext = new OnlineClientContext(chatMessage.TenantId, chatMessage.ToUserId.GetValueOrDefault());
var onlineClients = OnlineClientManager.GetAllByContext(onlineClientContext);
foreach (var onlineClient in onlineClients)
{
try
{
var signalRClient = Clients.Client(onlineClient.ConnectionId);
if (signalRClient == null)
{
Logger.LogDebug("Can not get user " + onlineClientContext.UserId + " with connectionId " + onlineClient.ConnectionId + " from SignalR hub!");
continue;
}
await signalRClient.SendAsync("getChatMessage", chatMessage, cancellationToken : Context.ConnectionAborted);
}
catch (Exception ex)
{
// 发送异常记录就行了,因为消息已经持久化
Logger.LogWarning("Could not send message to user: {0}", chatMessage.ToUserId);
Logger.LogWarning("Send to user message error: {0}", ex.Message);
}
}
}
protected virtual async Task SendMessageToUserAsync(ChatMessage chatMessage)
{
var onlineClientContext = new OnlineClientContext(chatMessage.TenantId, chatMessage.ToUserId.GetValueOrDefault());
var onlineClients = OnlineClientManager.GetAllByContext(onlineClientContext);
// 需要捕捉每一个发送任务的异常吗?
// var onlineClientConnections = onlineClients.Select(c => c.ConnectionId).ToImmutableList();
// var signalRClient = Clients.Clients(onlineClientConnections);
// await signalRClient.SendAsync("getChatMessage", chatMessage);
foreach (var onlineClient in onlineClients)
{
try
{
var signalRClient = Clients.Client(onlineClient.ConnectionId);
if (signalRClient == null)
{
Logger.LogDebug("Can not get user " + onlineClientContext.UserId + " with connectionId " + onlineClient.ConnectionId + " from SignalR hub!");
continue;
}
await signalRClient.SendAsync("getChatMessage", chatMessage);
}
catch (Exception ex)
{
Logger.LogWarning("Could not send message to user: {0}", chatMessage.ToUserId);
Logger.LogWarning("Send to user message error: {0}", ex.Message);
}
}
}
public override async Task OnConnectedAsync()
{
await base.OnConnectedAsync();
var client = CreateClientForCurrentConnection();
Logger.Debug("A client is connected: " + client);
OnlineClientManager.Add(client);
}
public override async Task OnDisconnectedAsync(Exception exception)
{
await base.OnDisconnectedAsync(exception);
Logger.Debug("A client is disconnected: " + Context.ConnectionId);
try
{
OnlineClientManager.Remove(Context.ConnectionId);
}
catch (Exception ex)
{
Logger.Warn(ex.ToString(), ex);
}
}
