/// <summary>
/// The main program entry-point.
/// </summary>
static void Main()
{
SynchronizationContext.SetSynchronizationContext(
new SynchronizationContext()
);
// All state data will be written to this directory.
DirectoryInfo stateDirectory = new DirectoryInfo(Path.Combine(
Directory.GetCurrentDirectory(), "_state"
));
if (!stateDirectory.Exists)
{
stateDirectory.Create();
}
ManualResetEvent completed = new ManualResetEvent(initialState: false);
try
{
// Match colour for INFO messages from Akka logger.
Console.ForegroundColor = ConsoleColor.White;
Console.WriteLine("Starting ...");
using (ActorSystem system = ActorSystem.Create("orchestration-example", AkkaConfig))
{
Console.WriteLine("Running.");
IActorRef app = system.ActorOf(actor =>
{
ILoggingAdapter log = null;
IActorRef client = null;
IActorRef jobStore = null;
IActorRef launcher = null;
IActorRef harvester = null;
IActorRef dispatcher = null;
actor.OnPreStart = context =>
{
log = context.GetLogger();
log.Info("Connecting to Docker...");
context.System.Docker().RequestConnectLocal(context.Self);
};
actor.Receive <Connected>((connected, context) =>
{
log.Info("Connected to Docker API (v{0}) at '{1}'.", connected.ApiVersion, connected.EndpointUri);
client = connected.Client;
log.Info("Initialising job store...");
jobStore = context.ActorOf( // TODO: Decide on supervision strategy.
JobStore.Create(
stateDirectory.GetFile("job-store.json")
)
);
context.Watch(jobStore);
jobStore.Tell(
new EventBusActor.Subscribe(context.Self)
);
});
actor.Receive <EventBusActor.Subscribed>((subscribed, context) =>
{
log.Info("Job store initialised.");
log.Info("Initialising harvester...");
harvester = context.ActorOf(Props.Create(
() => new Harvester(stateDirectory, jobStore)
));
log.Info("Harvester initialised.");
log.Info("Initialising dispatcher...");
launcher = context.ActorOf(
Props.Create(
() => new Launcher(client)
),
name: Launcher.ActorName
);
dispatcher = context.ActorOf(
Dispatcher.Create(stateDirectory, jobStore, launcher),
name: Dispatcher.ActorName
);
// Wait for the dispatcher to start.
Thread.Sleep( // TODO: Find a better way.
TimeSpan.FromSeconds(1)
);
log.Info("Dispatcher initialised.");
log.Info("Creating job...");
jobStore.Tell(new JobStore.CreateJob(
targetUrl: new Uri("https://ifconfig.co/json")
));
});
actor.Receive <JobStoreEvents.JobCreated>((jobCreated, context) =>
{
log.Info("Job {0} created.", jobCreated.Job.Id);
});
actor.Receive <JobStoreEvents.JobStarted>((jobStarted, context) =>
{
log.Info("Job {0} started.", jobStarted.Job.Id);
dispatcher.Tell(
new Dispatcher.NotifyWhenAllJobsCompleted()
);
});
actor.Receive <JobStoreEvents.JobCompleted>((jobStarted, context) =>
{
log.Info("Job {0} completed successfully.", jobStarted.Job.Id);
foreach (string jobMessage in jobStarted.Job.Messages)
{
log.Info("-- {0}", jobMessage);
}
log.Info("-- Content:");
foreach (string contentLine in (jobStarted.Job.Content ?? String.Empty).Split('\n'))
{
log.Info("---- {0}", contentLine);
}
});
actor.Receive <JobStoreEvents.JobFailed>((jobStarted, context) =>
{
log.Info("Job {0} failed.", jobStarted.Job.Id);
foreach (string jobMessage in jobStarted.Job.Messages)
{
log.Info("-- {0}", jobMessage);
}
});
actor.Receive <Dispatcher.AllJobsCompleted>((allJobsCompleted, context) =>
{
log.Info("All jobs completed.");
completed.Set();
});
}, name: "app");
completed.WaitOne();
Console.WriteLine("Shutting down...");
system.Terminate().Wait();
}
Console.WriteLine("Shutdown complete.");
}
catch (Exception unexpectedError)
{
Console.WriteLine(unexpectedError);
}
}
