public async Task <object> InvokeDispatcherAsync(MessageDispatchInfo dispatcher, IMessage message,
CancellationToken cancellationToken = default(CancellationToken))
{
Check.NotNull(dispatcher, nameof(dispatcher));
Check.NotNull(message, nameof(message));
if (!message.GetType().CanAssignTo(dispatcher.MessageType))
{
throw new ContainerException(
$"The message event type: {message.GetType()} being dispatched does not match or " +
$"derived from the dispatch information type of: {dispatcher.MessageType}.");
}
// Invoke the message consumers in a new lifetime scope. This is for the case where a message
// is received outside of the normal lifetime scope such as the one associated with the current
// web request.
using (var scope = AppContainer.Instance.Services.BeginLifetimeScope())
{
try
{
// Resolve the component and call the message handler.
var consumer = (IMessageConsumer)scope.Resolve(dispatcher.ConsumerType);
return(await dispatcher.Dispatch(message, consumer, cancellationToken));
}
catch (Exception ex)
{
Context.Logger.LogError(MessagingLogEvents.MESSAGING_EXCEPTION, "Message Dispatch Error Details.", ex);
throw;
}
}
}
public async Task <object> InvokeDispatcherInNewLifetimeScopeAsync(MessageDispatchInfo dispatcher,
IMessage message,
CancellationToken cancellationToken = default)
{
if (dispatcher == null)
{
throw new ArgumentNullException(nameof(dispatcher));
}
if (message == null)
{
throw new ArgumentNullException(nameof(message));
}
if (cancellationToken == null)
{
throw new ArgumentNullException(nameof(cancellationToken));
}
if (!message.GetType().CanAssignTo(dispatcher.MessageType))
{
throw new ContainerException(
$"The message event type: {message.GetType()} being dispatched does not match or " +
$"derive from the dispatch information type of: {dispatcher.MessageType}.");
}
// Invoke the message consumers in a new lifetime scope. This is for the case where a message
// is received outside of the normal lifetime scope such as the one associated with the current
// web request.
using (var scope = CompositeApp.Instance.CreateServiceScope())
{
try
{
// Resolve the component and call the message handler.
var consumer = (IMessageConsumer)scope.ServiceProvider.GetRequiredService(dispatcher.ConsumerType);
return(await dispatcher.Dispatch(message, consumer, cancellationToken).ConfigureAwait(false));
}
catch (Exception ex)
{
Context.Logger.LogError(MessagingLogEvents.MessagingException, ex, "Message Dispatch Error Details.");
throw;
}
}
}