internal void SetSessionStateMode(HttpContextBase context, IDynamicSessionStateConfigurator configurator)
{
MvcHandler mvcHandler = context.Handler as MvcHandler;
if (mvcHandler == null)
{
// Either MvcHttpHandler was called directly, Routing hasn't run, or Routing has run
// and the chosen handler isn't MVC. There's nothing we can do here.
return;
}
// Check to see that our factory is installed, otherwise the controller factory might be asked to
// create two instances of the controller for every request, which could lead to resource or
// scalability issues.
RequestContext requestContext = mvcHandler.RequestContext;
MvcDynamicSessionControllerFactory factory = ControllerBuilder.GetControllerFactory() as MvcDynamicSessionControllerFactory;
if (factory == null)
{
throw new InvalidOperationException(String.Format(CultureInfo.CurrentUICulture,
MvcResources.MvcDynamicSessionModule_WrongControllerFactory, typeof(MvcDynamicSessionControllerFactory)));
}
context.Items[_controllerFactoryItemKey] = factory; // save a reference to this factory so that we can dispose of the cached controller
string controllerName = requestContext.RouteData.GetRequiredString("controller");
IController controller = factory.CreateCachedController(requestContext, controllerName);
ControllerSessionState sessionStateMode = GetSessionStateMode(controller);
configurator.ConfigureSessionState(sessionStateMode);
}
internal static void PossiblyReleaseController(HttpContextBase context)
{
// It's possible that the factory can create the cached controller but that the MVC pipeline doesn't run
// or doesn't make it as far as the CreateController() call. In this case, we need to release the cached
// controller manually in case the controller is a pooled resource.
MvcDynamicSessionControllerFactory factory = context.Items[_controllerFactoryItemKey] as MvcDynamicSessionControllerFactory;
if (factory != null)
{
factory.ReleaseCachedController(context);
}
}
public static void Initialize()
{
var builder = new ContainerBuilder();
builder.RegisterControllers(Assembly.GetExecutingAssembly());
var host = new MultiGameHost();
builder.RegisterInstance(host)
.As<MultiGameHost>();
_container = builder.Build();
var factory =
new MvcDynamicSessionControllerFactory(new AutofacControllerFactory(new ContainerProvider(_container)));
ControllerBuilder.Current.SetControllerFactory(factory);
}
public void CreateCachedController_UnderlyingFactoryReturnsNull() {
// Arrange
RequestContext requestContext = GetRequestContext();
Mock<IControllerFactory> mockUnderlyingFactory = new Mock<IControllerFactory>();
mockUnderlyingFactory.Expect(o => o.CreateController(requestContext, "home")).Returns((IController)null).AtMostOnce();
MvcDynamicSessionControllerFactory factory = new MvcDynamicSessionControllerFactory(mockUnderlyingFactory.Object);
// Act
IController controller1 = factory.CreateCachedController(requestContext, "home");
IController controller2 = factory.CreateController(requestContext, "home");
// Assert
Assert.IsNull(controller1);
Assert.IsNull(controller2);
mockUnderlyingFactory.Verify();
}
public void CreateController_RemovesCachedController() {
// Arrange
RequestContext requestContext = GetRequestContext();
EmptyController controller = new EmptyController();
int numTimesCalled = 0;
Mock<IControllerFactory> mockUnderlyingFactory = new Mock<IControllerFactory>();
mockUnderlyingFactory.Expect(o => o.CreateController(requestContext, "home")).Returns(controller).Callback(() => { numTimesCalled++; });
MvcDynamicSessionControllerFactory factory = new MvcDynamicSessionControllerFactory(mockUnderlyingFactory.Object);
// Act & assert 1
IController controller1 = factory.CreateCachedController(requestContext, "home");
IController controller2 = factory.CreateController(requestContext, "home");
Assert.AreEqual(1, numTimesCalled);
// Act & assert 2
IController controller3 = factory.CreateController(requestContext, "home");
Assert.AreEqual(2, numTimesCalled);
}
public void ReleaseCachedController_ControllerInstanceCached_ReleasesInstance() {
// Arrange
RequestContext requestContext = GetRequestContext();
EmptyController controller = new EmptyController();
Mock<IControllerFactory> mockUnderlyingFactory = new Mock<IControllerFactory>();
mockUnderlyingFactory.Expect(o => o.CreateController(requestContext, "home")).Returns(controller).AtMostOnce();
mockUnderlyingFactory.Expect(o => o.ReleaseController(controller)).Verifiable();
MvcDynamicSessionControllerFactory factory = new MvcDynamicSessionControllerFactory(mockUnderlyingFactory.Object);
// Act
factory.CreateCachedController(requestContext, "home");
factory.ReleaseCachedController(requestContext.HttpContext);
// Assert
mockUnderlyingFactory.Verify();
}
public void CreateController_ThrowsIfRequestContextIsNull() {
// Arrange
MvcDynamicSessionControllerFactory factory = new MvcDynamicSessionControllerFactory();
// Act & assert
ExceptionHelper.ExpectArgumentNullException(
delegate {
factory.CreateController(null, "home");
}, "requestContext");
}
public void ReleaseController_ForwardsToUnderlyingFactory() {
// Arrange
EmptyController controller = new EmptyController();
Mock<IControllerFactory> mockUnderlyingFactory = new Mock<IControllerFactory>();
mockUnderlyingFactory.Expect(o => o.ReleaseController(controller)).Verifiable();
MvcDynamicSessionControllerFactory factory = new MvcDynamicSessionControllerFactory(mockUnderlyingFactory.Object);
// Act
factory.ReleaseController(controller);
// Assert
mockUnderlyingFactory.Verify();
}
public void ReleaseCachedController_ControllerInstanceNotCached_DoesNothing() {
// Arrange
RequestContext requestContext = GetRequestContext();
Mock<IControllerFactory> mockUnderlyingFactory = new Mock<IControllerFactory>();
mockUnderlyingFactory.Expect(o => o.ReleaseController(It.IsAny<IController>())).Never();
MvcDynamicSessionControllerFactory factory = new MvcDynamicSessionControllerFactory(mockUnderlyingFactory.Object);
// Act
factory.ReleaseCachedController(requestContext.HttpContext);
// Assert
// If we got this far, success!
}
