public void DispatchMessage(ImmutableEnvelope envelope)
{
if (envelope.Items.Length != 1)
{
throw new InvalidOperationException(
"Batch message arrived to the shared scope. Are you batching events or dispatching commands to shared scope?");
}
// we get failure if one of the subscribers fails
// hence, if any of the handlers fail - we give up
var item = envelope.Items[0];
Type[] consumerTypes;
if (!_dispatcher.TryGetValue(item.MappedType, out consumerTypes))
{
// else -> we don't have consumers. It's OK for the event
_observer.Notify(new EventHadNoConsumers(envelope.EnvelopeId, item.MappedType));
return;
}
using (var scope = _strategy.BeginEnvelopeScope())
{
foreach (var consumerType in consumerTypes)
{
scope.Dispatch(consumerType, envelope, item);
}
scope.Complete();
}
}
void ISingleThreadMessageDispatcher.DispatchMessage(ImmutableEnvelope message)
{
// empty message, hm...
if (message.Items.Length == 0)
{
return;
}
// verify that all consumers are available
foreach (var item in message.Items)
{
if (!_messageConsumers.ContainsKey(item.MappedType))
{
throw new InvalidOperationException("Couldn't find consumer for " + item.MappedType);
}
}
using (var scope = _strategy.BeginEnvelopeScope())
{
foreach (var item in message.Items)
{
var consumerType = _messageConsumers[item.MappedType];
scope.Dispatch(consumerType, message, item);
}
scope.Complete();
}
}
