public static void RegisterViewServiceInstance(Type viewServiceType, string name, object instance)
{
Guard.ArgumentNotNullOrWhiteSpace(name, "name");
Guard.ArgumentNotNull(instance, "instance");
// we get the view service locator and we unregister
var _viewServiceMeta = GetViewServiceMeta(viewServiceType, name);
if (_viewServiceMeta.Lifetime != ViewServiceLifetime.SelfRegisteredInstance)
{
throw new InvalidOperationException(string.Format(INSTANCEREGISTER_ERROR, viewServiceType.FullName));
}
// and register
ViewServicesInstancesManager.RegisterInstance(viewServiceType, instance);
}
private Object InitializeInstance()
{
switch (ResourceMeta.Lifetime)
{
case ViewServiceLifetime.Singleton:
if (_instance != null)
{
return(_instance);
}
lock (_lock)
{
if (_instance == null)
{
_instance = CreateObserverTypeInstance();
}
}
return(_instance);
case ViewServiceLifetime.PerInstance:
lock (_lock)
{
return(CreateObserverTypeInstance());
}
case ViewServiceLifetime.DiscoveredInstance:
lock (_lock)
{
// we search in the application's visual tree
DependencyObject _viewServiceElement = null;
return((GetViewServiceElement(Application.Current.MainWindow, out _viewServiceElement)) ?
_viewServiceElement : null);
}
case ViewServiceLifetime.SelfRegisteredInstance:
return(ViewServicesInstancesManager.GetRegisteredInstance(ResourceMeta.ViewServiceType));
}
// all else
throw new InvalidOperationException("Unable to resolve view service type.");
}