private static void Main()
{
Debug.Listeners.Clear();
Debug.Listeners.Add(new ConsoleTraceListener());
var tokenSource = new CancellationTokenSource();
var container = new HyperServiceHostContainer(
() =>
{
var host = new CancellableServiceHost(HyperNodeService.Instance);
// When we abort, we want to cancel the service and wait for all child tasks to complete
host.RegisterCancellationDelegate(
args =>
{
var cancelParams = (CancellationParams)args;
HyperNodeService.Instance.Cancel();
HyperNodeService.Instance.WaitAllChildTasks(cancelParams.MillisecondsTimeout, cancelParams.Token);
},
new CancellationParams
{
// TODO: Write about how these settings can be pulled from the app.config settings as a way to customize how long the service will wait after cancellation before proceeding to force a close.
MillisecondsTimeout = 100,
Timeout = TimeSpan.FromMilliseconds(2000),
Token = tokenSource.Token
}
);
return(host);
},
new DefaultServiceHostExceptionHandler()
);
Console.WriteLine("Starting service...");
if (!container.Start())
{
Console.WriteLine("Failed to start service. Press any key to continue...");
Console.ReadKey();
return;
}
Console.WriteLine("Service started and is listening on the following addresses:");
foreach (var endpoint in container.Endpoints)
{
Console.WriteLine(" " + endpoint.Address);
}
Console.WriteLine("Press any key to stop service...");
Console.ReadKey();
Console.WriteLine("Stopping service...");
container.Stop();
Console.WriteLine("Done.");
Thread.Sleep(1000);
}
public static void HostingAttempt5()
{
/* Final product*/
var container = new HyperServiceHostContainer(
() =>
{
var host = new CancellableServiceHost(HyperNodeService.Instance);
// Inject the cancellation tasks as a registered cancellation delegate. This can be done at any time, even after the host has opened
host.RegisterCancellationDelegate(
() =>
{
HyperNodeService.Instance.Cancel();
HyperNodeService.Instance.WaitAllChildTasks();
}
);
return(host);
},
new DefaultServiceHostExceptionHandler() // Inject the exception hanlders we want to use
);
Console.WriteLine("Starting service...");
// Start() returns a boolean indicating whether the service was able to be started. This allows graceful recovery from failure to start properly.
if (!container.Start())
{
Console.WriteLine("Failed to start service. Press any key to continue...");
Console.ReadKey();
return;
}
Console.WriteLine("Service started and is listening on the following addresses:");
foreach (var endpoint in container.Endpoints)
{
Console.WriteLine(" " + endpoint.Address);
}
// Wait for user input to shutdown
Console.ReadKey();
/* Simply call Stop() to handle all details of closing, including disposing the service and calling abort or close appropriately.
* The container doesn't care what type of ServiceHost it is working with, but if it happens to be a CancellableServiceHost,
* calling Abort() or Close() will automatically call Cancel() as discussed above. This ensures that our cancellation delegates
* are executed as expected.
*/
container.Stop();
Console.ReadKey();
}
private static void Main()
{
Debug.Listeners.Clear();
Debug.Listeners.Add(new ConsoleTraceListener());
var container = new HyperServiceHostContainer(
() =>
{
var host = new CancellableServiceHost(HyperNodeService.Instance);
host.RegisterCancellationDelegate(HyperNodeService.Instance.Cancel);
return(host);
},
new DefaultServiceHostExceptionHandler()
);
Console.WriteLine("Starting service...");
if (!container.Start())
{
Console.WriteLine("Failed to start service. Press any key to continue...");
Console.ReadKey();
return;
}
Console.WriteLine("Service started and is listening on the following addresses:");
foreach (var endpoint in container.Endpoints)
{
Console.WriteLine(" " + endpoint.Address);
}
Console.WriteLine("Press any key to stop service...");
Console.ReadKey();
Console.WriteLine("Stopping service...");
container.Stop();
Console.WriteLine("Done.");
Thread.Sleep(1000);
}
public static void HostingAttempt5()
{
/* Final product*/
var container = new HyperServiceHostContainer(
() =>
{
var host = new CancellableServiceHost(HyperNodeService.Instance);
// Inject the cancellation tasks as a registered cancellation delegate. This can be done at any time, even after the host has opened
host.RegisterCancellationDelegate(
() =>
{
HyperNodeService.Instance.Cancel();
HyperNodeService.Instance.WaitAllChildTasks();
}
);
return host;
},
new DefaultServiceHostExceptionHandler() // Inject the exception hanlders we want to use
);
Console.WriteLine("Starting service...");
// Start() returns a boolean indicating whether the service was able to be started. This allows graceful recovery from failure to start properly.
if (!container.Start())
{
Console.WriteLine("Failed to start service. Press any key to continue...");
Console.ReadKey();
return;
}
Console.WriteLine("Service started and is listening on the following addresses:");
foreach (var endpoint in container.Endpoints)
{
Console.WriteLine(" " + endpoint.Address);
}
// Wait for user input to shutdown
Console.ReadKey();
/* Simply call Stop() to handle all details of closing, including disposing the service and calling abort or close appropriately.
* The container doesn't care what type of ServiceHost it is working with, but if it happens to be a CancellableServiceHost,
* calling Abort() or Close() will automatically call Cancel() as discussed above. This ensures that our cancellation delegates
* are executed as expected.
*/
container.Stop();
Console.ReadKey();
}
public static void HostingAttempt4()
{
/* Now using the CancellableServiceHost, we get this*/
IDisposable disposableService = null;
try
{
var host = new CancellableServiceHost(HyperNodeService.Instance);
// Inject the cancellation tasks as a registered cancellation delegate. This can be done at any time, even after the host has opened
host.RegisterCancellationDelegate(
() =>
{
HyperNodeService.Instance.Cancel();
HyperNodeService.Instance.WaitAllChildTasks();
}
);
Console.WriteLine("Starting service...");
host.Open();
Console.WriteLine("Service started and is listening on the following addresses:");
foreach (var endpoint in host.Description.Endpoints)
{
Console.WriteLine(" " + endpoint.Address);
}
// Wait for user input to shutdown
Console.ReadKey();
// Save a reference to the singleton instance of the service and safe cast to IDisposable
disposableService = host.SingletonInstance as IDisposable;
/* Check for Faulted state and make the appropriate call to Abort() or Close().
* You can call Cancel() yourself if you prefer, but both Abort() and Close() call
* the Cancel() method if cancellation hasn't already been reuested.
*/
if (host.State == CommunicationState.Faulted)
host.Abort();
else
host.Close();
}
catch (TimeoutException exTimeout)
{
// Handle TimeoutException
}
catch (CommunicationException exCommunication)
{
// Handle CommunicationException
}
catch (Exception ex)
{
// Handle other generic exceptions
Console.WriteLine(ex);
}
finally
{
// Dispose of our service if applicable
if (disposableService != null)
disposableService.Dispose();
}
Console.ReadKey();
/* Problem summary:
*
* 1) Just one more thing to do: wrap in the HyperServiceHostContainer
*/
}
public static void HostingAttempt4()
{
/* Now using the CancellableServiceHost, we get this*/
IDisposable disposableService = null;
try
{
var host = new CancellableServiceHost(HyperNodeService.Instance);
// Inject the cancellation tasks as a registered cancellation delegate. This can be done at any time, even after the host has opened
host.RegisterCancellationDelegate(
() =>
{
HyperNodeService.Instance.Cancel();
HyperNodeService.Instance.WaitAllChildTasks();
}
);
Console.WriteLine("Starting service...");
host.Open();
Console.WriteLine("Service started and is listening on the following addresses:");
foreach (var endpoint in host.Description.Endpoints)
{
Console.WriteLine(" " + endpoint.Address);
}
// Wait for user input to shutdown
Console.ReadKey();
// Save a reference to the singleton instance of the service and safe cast to IDisposable
disposableService = host.SingletonInstance as IDisposable;
/* Check for Faulted state and make the appropriate call to Abort() or Close().
* You can call Cancel() yourself if you prefer, but both Abort() and Close() call
* the Cancel() method if cancellation hasn't already been reuested.
*/
if (host.State == CommunicationState.Faulted)
{
host.Abort();
}
else
{
host.Close();
}
}
catch (TimeoutException exTimeout)
{
// Handle TimeoutException
}
catch (CommunicationException exCommunication)
{
// Handle CommunicationException
}
catch (Exception ex)
{
// Handle other generic exceptions
Console.WriteLine(ex);
}
finally
{
// Dispose of our service if applicable
if (disposableService != null)
{
disposableService.Dispose();
}
}
Console.ReadKey();
/* Problem summary:
*
* 1) Just one more thing to do: wrap in the HyperServiceHostContainer
*/
}
