public void SendSubscriptionUpdate(BaseSubscription subscription, SubscriptionUpdateBase subsUpdates)
{
foreach (var connection in connections)
{
Task.Factory.StartNew(async() => await SendSubscriptionUpdate(subscription, subsUpdates, connection.Value));
}
}
public override Task <BaseResponse> Handle(InfoWebSocketConnection infoWebSocket, UnsubscribeCommand command)
{
if (command.Subscriptions.Count < 0)
{
throw new BadRequestException("At least one subscription must be specified.");
}
foreach (var subs in command.Subscriptions)
{
var subscription = Context.SubscriptionsManager.GetOrAddSubscription(BaseSubscription.GetBySubscriptionName(subs));
infoWebSocket.RemoveSubsctioption(subscription);
}
return(Task.FromResult((BaseResponse) new SuccesResponse {
RequestId = command.RequestId
}));
}
public async Task SendSubscriptionUpdate(BaseSubscription baseSubscription, SubscriptionUpdateBase update)
{
if (Subscriptions.TryGetValue(baseSubscription, out var lastUpdate))
{
var @lock = locks.GetOrAdd(baseSubscription, (_) => new SemaphoreSlim(1));
await @lock.WaitAsync();
try
{
var updateOfInterest = update.GetUpdateForDate(lastUpdate);
if (updateOfInterest == null)
{
return;
}
Subscriptions[baseSubscription] = updateOfInterest.UpdateDate;
await SendMessage(updateOfInterest);
}
finally
{
@lock.Release();
}
}
}
public static bool TryGetSubscription(string name, out BaseSubscription subscription)
{
return(subscriptions.TryGetValue(name, out subscription));
}
public static BaseSubscription GetOrAddSubscription(BaseSubscription subscription)
{
return(subscriptions.GetOrAdd(subscription.Name, subscription));
}
public void RemoveSubsctioption(BaseSubscription baseSubscription)
{
Subscriptions.TryRemove(baseSubscription, out _);
}
public void AddSubscription(BaseSubscription baseSubscription)
{
Subscriptions.TryAdd(baseSubscription, default);
}
async Task SendSubscriptionUpdate(BaseSubscription subscription, SubscriptionUpdateBase update, InfoWebSocketConnection connection)
{
await connection.SendSubscriptionUpdate(subscription, update);
}
