Exemple #1
0
        public static async Task <int> MainApp(string[] args)
        {
            var parser             = new ConfigurationParser();
            var dependencyResolver = new DefaultDependencyResolver();

            Settings     settings;
            const string SettingsFilename = "settings.json";

            try
            {
                string contents = File.ReadAllText(SettingsFilename);
                settings = JsonConvert.DeserializeObject <Settings>(contents);
            }
            catch (Exception ex)
            {
                switch (ex)
                {
                case FileNotFoundException fex:
                    System.Console.WriteLine($"{SettingsFilename} could not be found.");
                    break;

                case UnauthorizedAccessException aux:
                    System.Console.WriteLine($"Access to {SettingsFilename} was denied.");
                    break;

                case JsonException jex:
                    System.Console.WriteLine($"Could not understand {SettingsFilename}: {jex.Message}");
                    break;

                default:
                    System.Console.WriteLine($"There was an error loading {SettingsFilename}: {ex.Message}");
                    break;
                }

                settings = new Settings
                {
                    DatabaseType = DatabaseType.Memory,
                    Listening    = new ListenSettings {
                        HttpPort = 5000, Host = "*", Scheme = Scheme.Http, WebSocketEnabled = true
                    }
                };
            }

            settings = parser.Parse(settings, args);

            if (settings.Install)
            {
                var installer = new Installer();
                await installer.Run(null);

                return(-1);
            }

            ITransactionStorage storage = CreateStorageFromSettings(settings);

            try
            {
                System.Console.WriteLine("Initializing a connection to the database provider...");
                await storage.OpenAsync();
            }
            catch (System.Net.Sockets.SocketException ex)
            {
                System.Console.WriteLine(ex.Message);
                return(-1);
            }

            var httpServer = new HttpServer(settings.Listening.BuildUri(), storage);

            var location         = Path.GetDirectoryName(Assembly.GetEntryAssembly().Location);
            var dir              = Directory.CreateDirectory(Path.Combine(location, "Modules"));
            var modules          = dir.GetFiles("*.dll", SearchOption.TopDirectoryOnly);
            var muteScriptRunner = new MuteScriptRunner();

            muteScriptRunner.AddImplicitType("Console", typeof(IEchoService));
            muteScriptRunner.AddImplicitType("IPaymentService", typeof(IPaymentService));
            dependencyResolver.Register <IEchoService>(new EchoService(), null);
            dependencyResolver.Register <IPaymentService>(new MockPaymentService(), "mock");

            foreach (var mod in modules)
            {
                try
                {
                    using (var fs = mod.OpenRead())
                    {
                        var asm = AssemblyLoadContext.Default.LoadFromStream(fs);

                        var types = asm.ExportedTypes;
                    }
                }
                catch (Exception)
                {
                }
            }

            ScriptingProvider provider = new ScriptingProvider(storage);

            provider.RegisterLanguageProvider("mute", muteScriptRunner);
            dependencyResolver.Register <IScriptRunner>(provider, null);

            var listeningThread = new Thread(async() => await httpServer.Start(provider))
            {
                Name = "Web Server"
            };

            listeningThread.Start();


            TransactionProcessor processor = new TransactionProcessor(storage, provider, dependencyResolver);

            var cancelSource = new CancellationTokenSource();

            _cancel = cancelSource.Token;
            System.Console.CancelKeyPress += async(sender, ev) =>
            {
                await httpServer.Stop();
            };

            while (!cancelSource.IsCancellationRequested)
            {
                await processor.RunAsync(cancelSource.Token);
            }

            httpServer.Wait();

            return(0);
        }