private async Task <ServiceCapabilities> compile(HandlerGraph handlers, SerializationGraph serialization, IChannelGraph channels, ITransport[] transports, UriAliasLookup lookups, JasperRuntime runtime)
{
var validTransports = transports.Select(x => x.Protocol).ToArray();
var capabilities = new ServiceCapabilities
{
ServiceName = runtime.ServiceName,
Subscriptions = determineSubscriptions(handlers, serialization),
Published = determinePublishedMessages(serialization, runtime, validTransports)
};
// Hokey.
foreach (var subscription in capabilities.Subscriptions)
{
subscription.ServiceName = runtime.ServiceName;
}
foreach (var message in capabilities.Published)
{
message.ServiceName = runtime.ServiceName;
}
await capabilities.ApplyLookups(lookups);
// Now, do some validation
var missingDestination = capabilities.Subscriptions
.Where(x => x.Destination == null)
.Select(s => $"Could not determine an incoming receiver for message '{s.MessageType}'");
var invalidTransport = capabilities.Subscriptions
.Where(x => x.Destination != null && !validTransports.Contains(x.Destination.Scheme))
.Select(x => $"Unknown transport '{x.Destination.Scheme}' for subscription to message '{x.MessageType}'");
var missingHandlers = capabilities.Subscriptions
.Where(x => !handlers.CanHandle(x.DotNetType))
.Select(x => $"No handler for message '{x.MessageType}' referenced in a subscription");
capabilities.Errors = missingDestination.Concat(invalidTransport).Concat(missingHandlers).ToArray();
return(capabilities);
}
public Task PersistCapabilities(ServiceCapabilities capabilities)
{
_subscriptions.RemoveAll(x => x.ServiceName == capabilities.ServiceName);
_subscriptions.Add(capabilities);
return(Task.CompletedTask);
}