/// <summary>
/// Forces this listener to raise the given event. May not be invocable by all listeners.
/// </summary>
/// <param name="eventData">The event data.</param>
/// <returns>Task.</returns>
public async Task RaiseEvent(SubscriptionEvent eventData)
{
Validation.ThrowIfNull(eventData, nameof(eventData));
_logger?.SubscriptionEventReceived(eventData);
var tasks = new List <Task>();
lock (_receivers)
{
if (_receivers.Count > 0)
{
var eventName = eventData.ToSubscriptionEventName();
if (!_receivers.ContainsKey(eventName))
{
return;
}
foreach (var receiver in _receivers[eventName])
{
var task = receiver.ReceiveEvent(eventData);
tasks.Add(task);
}
}
}
await Task.WhenAll(tasks);
}
/// <summary>
/// Raises a new event in a manner such that a compatible <see cref="ISubscriptionEventRouter" /> could
/// receive it for processing.
/// </summary>
/// <param name="eventData">The event to publish.</param>
/// <returns>Task.</returns>
public Task PublishEvent(SubscriptionEvent eventData)
{
// this publisher pushes events raised
// by mutations and queries directly into the DI-configured router
// for immediate dispatch within this instance
return(_eventRouter.RaiseEvent(eventData));
}