public BindInfo(Delegate clientHandler, EventHandlerShim shim, long handlerId)
{
ClientHandler = clientHandler;
Shim = shim;
HandlerId = handlerId;
_eventHandlerInvoker = GetEventHandlerInvoker(ClientHandler.GetType(), ClientHandler.Method.GetParameters());
}
protected void ProcessInUnitOfWork(List <IEventMessage> eventMessages, IUnitOfWork unitOfWork, Segment segment)
{
try
{
unitOfWork.ExecuteWithResult(() =>
{
var monitorCallback = _messageMonitor.OnMessageIngested(unitOfWork.Message);
return(new DefaultInterceptorChain(unitOfWork, _interceptors.Keys.GetEnumerator(), MessageHandler <IEventMessage> .Create(m =>
{
try
{
EventHandlerInvoker.Handle(m, segment);
monitorCallback.ReportSuccess();
return null;
}
catch (Exception exception)
{
monitorCallback.ReportFailure(exception);
throw;
}
})).Proceed());
}, _rollbackConfiguration);
}
catch (Exception e)
{
if (unitOfWork.IsRolledBack)
{
_errorHandler.HandleError(new ErrorContext(Name, e, eventMessages));
}
else
{
_logger.LogInformation($"Exception occurred while processing a message, but unit of work was committed. {e.GetType().Name}");
}
}
}
void IHandleEvent.HandleEvent(EventHandlerInvoker binding, UIEventArgs args)
{
Console.WriteLine("Event: " + args.Type);
if (args is UIKeyboardEventArgs keyboardArgs)
{
Console.WriteLine(keyboardArgs.Type);
Console.WriteLine(keyboardArgs.Key);
Console.WriteLine(keyboardArgs.Code);
Console.WriteLine(keyboardArgs.Repeat);
}
}
public void DispatchEvent(EventHandlerInvoker binding, UIEventArgs eventArgs)
{
if (_component is IHandleEvent handleEventComponent)
{
handleEventComponent.HandleEvent(binding, eventArgs);
}
else
{
throw new InvalidOperationException(
$"The component of type {_component.GetType().FullName} cannot receive " +
$"events because it does not implement {typeof(IHandleEvent).FullName}.");
}
}
protected bool CanHandle(IEventMessage eventMessage, Segment segment)
{
try
{
return(EventHandlerInvoker.CanHandle(eventMessage, segment));
}
catch (Exception e)
{
_errorHandler.HandleError(new ErrorContext(Name, e, new List <IEventMessage> {
eventMessage
}));
return(false);
}
}
public IDisposable Subscribe <T>(Action <T> handler) where T : class, IMessage
{
var eventHandlerInvoker = new EventHandlerInvoker <T>(handler);
var subscription = new Subscription(eventHandlerInvoker.MessageTypeId);
_messageDispatcher.AddInvoker(eventHandlerInvoker);
AddSubscriptions(new[] { subscription });
return(new DisposableAction(() =>
{
RemoveSubscriptions(new[] { subscription });
_messageDispatcher.RemoveInvoker(eventHandlerInvoker);
}));
}
private void BuildEventInvokers(IEnumerable<Type> eventHandlerTypes)
{
eventHandlerInvokers = new Dictionary<Type, EventHandlerInvoker>();
foreach(var eventHandlerType in eventHandlerTypes)
{
foreach(var domainEventType in GetDomainEventTypes(eventHandlerType))
{
EventHandlerInvoker eventInvoker;
if(!eventHandlerInvokers.TryGetValue(domainEventType, out eventInvoker))
eventInvoker = new EventHandlerInvoker(eventHandlerBuilder, domainEventType);
eventInvoker.AddEventHandlerType(eventHandlerType);
eventHandlerInvokers[domainEventType] = eventInvoker;
}
}
}
private void BuildEventInvokers(IEnumerable <Type> eventHandlerTypes)
{
eventHandlerInvokers = new Dictionary <Type, EventHandlerInvoker>();
foreach (var eventHandlerType in eventHandlerTypes)
{
foreach (var domainEventType in GetDomainEventTypes(eventHandlerType))
{
EventHandlerInvoker eventInvoker;
if (!eventHandlerInvokers.TryGetValue(domainEventType, out eventInvoker))
{
eventInvoker = new EventHandlerInvoker(eventHandlerBuilder, domainEventType);
}
eventInvoker.AddEventHandlerType(eventHandlerType);
eventHandlerInvokers[domainEventType] = eventInvoker;
}
}
}
/// <inheritdoc />
public void Subscribe <TMessage>(object handler)
{
if (handler == null)
{
throw new ArgumentNullException(nameof(handler));
}
var messageType = typeof(TMessage);
var invoker = new EventHandlerInvoker(handler, messageType);
if (this.handlers.ContainsKey(messageType))
{
this.handlers[messageType].Add(invoker);
}
else
{
this.handlers.Add(
messageType,
new List <EventHandlerInvoker> {
invoker
});
}
}
public static IDisposable BindEvent(this object sender, string eventName, EventHandlerInvoker executeAction)
{
var t = sender.GetType();
while (t != null)
{
var es = t.GetEventsFromCache();
EventInfo ei = es.MatchOrDefault(eventName);
if (ei != null)
{
var handlerType = ei.EventHandlerType;
var eventMethod = handlerType.GetMethodsFromCache().MatchOrDefault("Invoke");
if (eventMethod != null)
{
var pts = eventMethod.GetParameters().Select(p => p.ParameterType)
.ToArray();
var newHandler = CreateHandler(
(o, e, en, ehtype) => executeAction(o, e, en, ehtype),
eventName,
handlerType,
pts
);
#if NETFX_CORE || WINDOWS_PHONE_8
var etmodule = sender.GetType().GetTypeOrTypeInfo().Module;
try
{
return(DoNetEventBind(sender, ei, newHandler));
}
catch (InvalidOperationException ex)
{
var newMI = WinRTEventBindMethodInfo.MakeGenericMethod(newHandler.GetType());
var rval = newMI.Invoke(null, new object[] { sender, ei, newHandler }) as IDisposable;
return(rval);
}
#else
return(DoNetEventBind(sender, ei, newHandler));
#endif
}
return(null);
}
t = t.GetTypeOrTypeInfo().BaseType;
}
return(null);
}
public void HandleEvent(EventHandlerInvoker binding, UIEventArgs args)
{
binding.Invoke(args);
TriggerRender();
}
public void HandleEvent(EventHandlerInvoker binding, UIEventArgs args)
{
var task = binding.Invoke(args);
Render();
}
public void HandleEvent(EventHandlerInvoker binding, UIEventArgs args)
{
binding.Invoke(args);
}
public void FireEventWithArgsWithEventHandlerInvoker(object sender, object args)
{
EventHandlerInvoker.Invoke(EventWithArgs, sender, args);
}
public void FireSimpleActionEventWithEventHandlerInvoker()
{
EventHandlerInvoker.Invoke(SimpleActionEvent);
}
