Topshelf-based service using Zyan Communication Framework

service.cs

// Compile: csc service.cs /r:Zyan.Communication.dll /r:Topshelf.dll
//
// Usage:
//    service.exe            Run the console server
//    service.exe install    Install the service (requires admin rights)
//    service.exe start      Start the installed service (admin)
//    service.exe stop       Stops the service (admin)
//    service.exe uninstall  Uninstall the service (admin)
//    service.exe client     Run the console client
 
using System;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using Topshelf;
using Zyan.Communication;
using Zyan.Communication.Protocols.Tcp;
 
struct Program
{
	const int TcpPortNumber = 8765;
 
	const string ZyanHostName = "SampleService";
 
	static void Main(string[] args)
	{
		if (args.Any(s => s == "client"))
		{
			RunClient().Wait();
			return;
		}

		RunServer();
	}
 
// ------------------------------- Shared code --------
 
	public interface ISampleService
	{
		string GeneratePassword(int length);
	}
 
// ------------------------------- Client code --------
 
	static async Task RunClient()
	{
		var protocol = new TcpDuplexClientProtocolSetup();
		var url = protocol.FormatUrl("localhost", TcpPortNumber, ZyanHostName);
 
		using (var conn = await Task.Run(() => new ZyanConnection(url, protocol)))
		{
			Console.WriteLine("Connected to server.");
			var proxy = conn.CreateProxy<ISampleService>();
 
			while (true)
			{
				Console.Write("Enter password length (empty line to quit): ");
				var line = Console.ReadLine().Trim(' ', '\r', '\n', '.', '-');
				if (string.IsNullOrEmpty(line) || line.Any(c => !char.IsNumber(c)))
				{
					Console.WriteLine("Bye.");
					break;
				}
 
				var length = Convert.ToInt32(line);
				var password = await Task.Run(() => proxy.GeneratePassword(length));
 
				Console.WriteLine("Server generated password: {0}", password);
			}
		}
	}
 
// ------------------------------- Server code --------
 
	static void RunServer()
	{
		HostFactory.Run(x =>
		{
			//x.UseNLog(); // configure logging as needed
			x.Service<Dispatcher>(s =>
			{
				s.ConstructUsing(name => new Dispatcher());
				s.WhenStarted(d => d.Start());
				s.WhenStopped(d => d.Stop());
			});

			// these options can be overridden via the command line:
			// service.exe install --localservice -servicename:Cida -description:Demo -displayname:CidaDemo
			x.RunAsNetworkService();
			x.SetDescription("Configuration Item Discovery Agent");
			x.SetDisplayName("CidaService");
			x.SetServiceName("CidaService");
			x.EnableServiceRecovery(rc => rc.RestartService(1)); // restart after one minute
		});

		Console.WriteLine("Topshelf application is finished. Exiting...");
	}

	internal class Dispatcher
	{
		private ZyanComponentHost Host { get; set; }

		public void Start()
		{
			var protocol = new TcpDuplexServerProtocolSetup(TcpPortNumber);
			Host = new ZyanComponentHost(ZyanHostName, protocol);
			Host.RegisterComponent<ISampleService, SampleService>();
			Console.WriteLine("Server is up and running. Try running clients.");
		}

		public void Stop()
		{
			if (Host != null)
			{
				Host.Dispose();
				Host = null;
				Console.WriteLine("Server is stopped.");
			}
		}
	}
 
	internal class SampleService : ISampleService
	{
		public string GeneratePassword(int length)
		{
			var sb = new StringBuilder();
			var rnd = new Random();
			for (var i = 0; i < length; i++)
			{
				var @char = (char)('a' + rnd.Next('z' - 'a'));
				sb.Append(@char);
			}
 
			Console.WriteLine("Generated password: {0}, length = {1}",
				sb, length);
 
			return sb.ToString();
		}
	}
}

session.md

c:>service.exe install

Configuration Result:
[Success] Name CidaService
[Success] Description Configuration Item Discovery Agent
[Success] ServiceName CidaService
Topshelf v3.2.150.0, .NET Framework v4.0.30319.34209

Выполняется групповая операция установки.

Начинается этап установки процедуры установки.
Installing CidaService service
Устанавливается служба CidaService...
Служба CidaService успешно установлена.

Этап установки успешно выполнен, начинается этап фиксации.

Этап фиксации выполнен успешно.

Групповая операция установки выполнена.
Topshelf application is finished. Exiting...

c:>service.exe start

Configuration Result:
[Success] Name CidaService
[Success] Description Configuration Item Discovery Agent
[Success] ServiceName CidaService
Topshelf v3.2.150.0, .NET Framework v4.0.30319.34209
The CidaService service was started.
Topshelf application is finished. Exiting...

c:\service.exe client

Connected to server.
Enter password length (empty line to quit): 10
Server generated password: xsshpcpdga
Enter password length (empty line to quit): 11
Server generated password: goarqvoqich
Enter password length (empty line to quit): 123
Server generated password: lmiwctrtsoasxgcmntvdfebclbfoceaiwuaqeosnnrlytplbotlt
gujgkgkaocqonqudfkixaipnschvpdaisgcbltgxerykbwkcthvdlmsxfvnixokkcivhotr
Enter password length (empty line to quit):
Bye.

c:>service.exe stop

Configuration Result:
[Success] Name CidaService
[Success] Description Configuration Item Discovery Agent
[Success] ServiceName CidaService
Topshelf v3.2.150.0, .NET Framework v4.0.30319.34209
The CidaService service was stopped.
Topshelf application is finished. Exiting...

c:>service.exe uninstall

Configuration Result:
[Success] Name CidaService
[Success] Description Configuration Item Discovery Agent
[Success] ServiceName CidaService
Topshelf v3.2.150.0, .NET Framework v4.0.30319.34209

Начинается установка.
Uninstalling CidaService service
Выполняется удаление источника EventLog CidaService.
Предупреждение. Источник CidaService не зарегистрирован на локальном компьютере.
Выполняется удаление службы CidaService из системы...
Служба CidaService успешно удалена из системы.

Удаление из системы выполнено.
Topshelf application is finished. Exiting...