public async Task Post(string topic, SignalrMessage data)
{
if (topic == null || data == null)
{
return;
}
var pendingTasks = new List <Task>();
SubscriptionsByTopic subscriptionsByTopic;
SignalrDataStore.SubscriptionsByTopic.TryGetValue(topic, out subscriptionsByTopic);
if (subscriptionsByTopic != null)
{
var subscribedUsers = subscriptionsByTopic.SubscriptionsByUser;
foreach (var subscribedUser in subscribedUsers)
{
if (subscribedUser.Key == null)
{
return;
}
var newTask = _dataHubContext.Clients.Client(subscribedUser.Key).Sync(data);
pendingTasks.Add(newTask);
}
}
await Task.WhenAll(pendingTasks);
}
private async Task SendToSignalrHub(Message message)
{
var messageBytes = message.GetBytes();
var messageString = Encoding.UTF8.GetString(messageBytes);
if (!string.IsNullOrEmpty(messageString))
{
var messageBody = JsonConvert.DeserializeObject <MessageBody>(messageString);
SignalrMessage signalrMessage = new SignalrMessage
{
machine_temperature = messageBody.machine.temperature,
ambient_temperature = messageBody.ambient.temperature
};
await hubConnection.InvokeAsync("Broadcast", "tempSensor", signalrMessage);
}
}
public async Task Push(string topic, SignalrMessage data)
{
try {
if (topic == null || data == null)
{
return;
}
var response = await _hub.InvokeAsync <SignalrResponse>("receivePush", topic, data);
if (!response.Success)
{
}
}
catch (Exception ex)
{
_logger.LogError(ex, "SignalrClient push error:" + ex.Message);
}
}
/// <summary>
/// 客户端调用
/// </summary>
/// <returns></returns>
public async Task <SignalrResponse> receivePush(string topic, SignalrMessage data)
{
try {
if (topic == null || data == null)
{
return(Error("topic or message is null"));
}
var pendingTasks = new List <Task>();
SubscriptionsByTopic subscriptionsByTopic;
SignalrDataStore.SubscriptionsByTopic.TryGetValue(topic, out subscriptionsByTopic);
if (subscriptionsByTopic != null)
{
var subscribedUsers = subscriptionsByTopic.SubscriptionsByUser;
foreach (var subscribedUser in subscribedUsers)
{
if (subscribedUser.Key == null)
{
continue;
}
var newTask = Clients.Client(subscribedUser.Key).Sync(data);
pendingTasks.Add(newTask);
}
}
await Task.WhenAll(pendingTasks);
return(Success());
}
catch (Exception ex) {
return(Error(ex.Message));
}
}
public Task Broadcast(string sender, SignalrMessage message)
{
return(Clients
.AllExcept(new[] { Context.ConnectionId })
.SendAsync("Broadcast", sender, message));
}
