/// <summary>
/// Execute the request via the worker.
/// </summary>
/// <param name="request">The <see cref="EventHandlerRequest"/> to execute.</param>
/// <param name="cancellationToken">The <see cref="CancellationToken"/> to cancel the execution.</param>
/// <returns>The <see cref="Task"/> of the event.</returns>
public async Task PublishAsync(EventHandlerRequest request, CancellationToken cancellationToken)
{
if (request == null)
{
throw Error.ArgumentNull("request");
}
IEventHandlerSelector handlerSelector = this.Configuration.Services.GetEventHandlerSelector();
EventHandlersDescriptor eventDescriptor = handlerSelector.SelectHandlers(request);
var descriptors = eventDescriptor.EventHandlerDescriptors;
for (int i = 0; i < descriptors.Count; i++)
{
await InvokeHandlerAsync(descriptors[i], request, cancellationToken);
}
}
private ConcurrentDictionary<Type, EventHandlersDescriptor> InitializeHandlerInfoCache()
{
ConcurrentDictionary<Type, EventHandlersDescriptor> concurrentDictionary = new ConcurrentDictionary<Type, EventHandlersDescriptor>();
Dictionary<Type, ILookup<Type, Type>> cache = this.handlerTypeCache.Cache;
foreach (KeyValuePair<Type, ILookup<Type, Type>> current in cache)
{
Type eventType = current.Key;
Collection<EventHandlerDescriptor> descriptors = new Collection<EventHandlerDescriptor>();
foreach (IGrouping<Type, Type> group in current.Value)
{
foreach (Type handlerType in group)
{
EventHandlerDescriptor descriptor = new EventHandlerDescriptor(this.configuration, eventType, handlerType);
descriptors.Add(descriptor);
}
}
EventHandlersDescriptor eventDescriptor = new EventHandlersDescriptor(eventType.Name, descriptors);
concurrentDictionary.TryAdd(eventType, eventDescriptor);
}
return concurrentDictionary;
}
private ConcurrentDictionary <Type, EventHandlersDescriptor> InitializeHandlerInfoCache()
{
ConcurrentDictionary <Type, EventHandlersDescriptor> concurrentDictionary = new ConcurrentDictionary <Type, EventHandlersDescriptor>();
Dictionary <Type, ILookup <Type, Type> > cache = this.handlerTypeCache.Cache;
foreach (KeyValuePair <Type, ILookup <Type, Type> > current in cache)
{
Type eventType = current.Key;
Collection <EventHandlerDescriptor> descriptors = new Collection <EventHandlerDescriptor>();
foreach (IGrouping <Type, Type> group in current.Value)
{
foreach (Type handlerType in group)
{
EventHandlerDescriptor descriptor = new EventHandlerDescriptor(this.configuration, eventType, handlerType);
descriptors.Add(descriptor);
}
}
EventHandlersDescriptor eventDescriptor = new EventHandlersDescriptor(eventType.Name, descriptors);
concurrentDictionary.TryAdd(eventType, eventDescriptor);
}
return(concurrentDictionary);
}
