public void Listen()
{
if (Routes.Count() == 0)
{
Logger.Info("No routes specified. All emitted values will be passed on to all sinks.");
Observable
.Merge(Sources.Select((it) => it.Get()))
.Catch(Observable.Empty <object>())
.Subscribe((value) =>
{
Sinks.ForEach((sink) => sink.Consume(value));
});
return;
}
Logger.Info("Setting up routes...");
Routes.ForEach(route =>
{
var source = Sources.Find(source => source.Id == route.From);
var sinks = Sinks.Where(sink => route.To.Contains(sink.Id)).ToList();
Logger.Info($"Values from {source} will be passed on to {string.Join(", ", sinks.Select(it => it.ToString()))}");
source
.Get()
.Catch(Observable.Empty <object>())
.Subscribe((value) =>
{
sinks.ForEach((sink) => sink.Consume(value));
});
});
var unconnectedSources = Sources.Where((source) => !Routes.Select((route) => route.From).Contains(source.Id));
var unconnectedSinks = Sinks.Where((sink) => !Routes.SelectMany((route) => route.To).Contains(sink.Id));
if (unconnectedSources.Count() > 0)
{
Logger.Warn($"Found {unconnectedSources.Count()} unconnected sources. Emitted values from those will never be processed by any sinks:");
Logger.Warn(string.Join(", ", unconnectedSources.Select(source => source.ToString())));
}
if (unconnectedSinks.Count() > 0)
{
Logger.Warn($"Found {unconnectedSinks.Count()} unconnected sinks (not targeted by any route):");
Logger.Warn(string.Join(", ", unconnectedSinks.Select(sink => sink.ToString())));
Logger.Warn("Please double check your configuration");
}
}
