public GraceDependencyInjectionContainer(IExportLocator container)
{
if (container == null)
throw new ArgumentNullException("container");
this.container = container;
}
/// <summary>
/// Default Constructor
/// </summary>
/// <param name="conventionsService">conventions service</param>
/// <param name="viewModelResolutionService">view model resolution service</param>
/// <param name="locator">locator</param>
public ConventionsViewBinder(IConventionsService conventionsService,
IViewModelResolutionService viewModelResolutionService,
IExportLocator locator)
{
this.conventionsService = conventionsService;
this.viewModelResolutionService = viewModelResolutionService;
this.locator = locator;
}
public GraceDependencyInjectionContainer(IExportLocator container)
{
if (container == null)
{
throw new ArgumentNullException("container");
}
this.container = container;
}
/// <summary>
/// Creates and Binds a viewmodel to a view
/// </summary>
/// <param name="injectionScope"></param>
/// <param name="view">view to bind to</param>
/// <param name="viewModelName">name of the view model to bind to</param>
public bool ResolveViewModel(IExportLocator injectionScope, FrameworkElement view, string viewModelName)
{
bool foundModel = false;
object viewModel = null;
object oldViewModel = view.DataContext;
if (!string.IsNullOrEmpty(viewModelName))
{
try
{
IInjectionContext injectionContext = injectionScope.CreateContext();
IViewContext viewContext = new ViewContext(view);
injectionContext.Export((s, c) => viewContext);
viewModel = injectionScope.Locate(viewModelName, injectionContext);
if (viewModel != null)
{
foundModel = true;
Logger.Debug(string.Format("Resolved ViewModel Name {0} to Type {1}", viewModelName, viewModel.GetType().FullName));
}
}
catch (Exception exp)
{
Logger.Error("Exception thrown while creating ViewModel: " + viewModelName, SUPPLEMENTAL_STRING, exp);
}
}
if (foundModel)
{
ProcessNewModel(view, viewModel);
ProcessOldModel(view, oldViewModel);
}
return foundModel;
}
/// <summary>
/// Creates and Binds a viewmodel to a view
/// </summary>
/// <param name="injectionScope">injection scope to resolve from</param>
/// <param name="view">view to bind to</param>
/// <param name="viewModelType">type of the view model to bind to</param>
public void ResolveViewModel(IExportLocator injectionScope, FrameworkElement view, Type viewModelType)
{
object viewModel = null;
object oldViewModel = view.DataContext;
if (viewModelType != null)
{
try
{
viewModel = injectionScope.Locate(viewModelType);
if (viewModel == null)
{
Logger.Error("Could not locate exported ViewModel of type: " + viewModelType.FullName, SUPPLEMENTAL_STRING);
}
else
{
Logger.Debug(string.Format("Resolved ViewModel Type {0} to Type {1}",
viewModelType.FullName,
viewModel.GetType().FullName));
}
}
catch (Exception exp)
{
Logger.Error("Exception thrown while creating ViewModel: " + viewModelType.FullName, SUPPLEMENTAL_STRING, exp);
}
}
ProcessNewModel(view, viewModel);
ProcessOldModel(view, oldViewModel);
}
public GraceInstanceProvider(IExportLocator exportLocator, Type serviceType)
{
this.exportLocator = exportLocator;
this.serviceType = serviceType;
}
protected GraceBaseServiceHostFactory(IExportLocator exportLocator)
{
this.exportLocator = exportLocator;
}
public GraceWebServiceHostFactory(IExportLocator exportLocator) : base(exportLocator)
{
}
/// <summary>
/// Default constructor
/// </summary>
/// <param name="container"></param>
public ViewPageActivator(IExportLocator container)
{
_container = container;
}
public GraceServiceBehavior(IExportLocator locator)
{
this.locator = locator;
}
private static bool TestForSpecialType(IExportLocator locator, Type importType)
{
if (importType == typeof(IDisposalScope) || importType == typeof(IExportLocator) ||
importType == typeof(IInjectionScope) || importType == typeof(IDependencyInjectionContainer))
{
return true;
}
if (importType.IsConstructedGenericType)
{
Type openType = importType.GetGenericTypeDefinition();
if (TestForListSpecialType(openType))
{
return true;
}
if (importType.FullName.StartsWith("System.Func`"))
{
return true;
}
if (TestForLazyType(openType))
{
return true;
}
if (TestForOwnedType(openType))
{
return true;
}
}
if (importType.IsArray)
{
return true;
}
return false;
}
private static bool LocateExportByType(IExportLocator locator, ExportStrategyDependency exportStrategyDependency)
{
if (locator.GetStrategy(exportStrategyDependency.ImportType) != null)
{
return true;
}
if (TestForSpecialType(locator, exportStrategyDependency.ImportType))
{
return true;
}
if (exportStrategyDependency.ImportType.GetTypeInfo().IsClass &&
!exportStrategyDependency.ImportType.GetTypeInfo().IsAbstract &&
!exportStrategyDependency.ImportType.GetTypeInfo().IsInterface)
{
return true;
}
IInjectionScope injectionScope = locator as IInjectionScope;
if (injectionScope != null)
{
InjectionContext context = new InjectionContext(injectionScope);
foreach (ISecondaryExportLocator secondaryExportLocator in injectionScope.SecondaryExportLocators)
{
if (secondaryExportLocator.CanLocate(context, null, exportStrategyDependency.ImportType, null, null))
{
return true;
}
}
if (injectionScope.ParentScope != null)
{
return LocateExportByType(injectionScope.ParentScope, exportStrategyDependency);
}
}
return false;
}
/// <summary>
/// Calculates a list of possible missing dependencies
/// </summary>
/// <param name="locator"></param>
/// <returns></returns>
public static IEnumerable<PossibleMissingDependency> CalculatePossibleMissingDependencies(IExportLocator locator)
{
List<PossibleMissingDependency> possibleMissingDependencies = new List<PossibleMissingDependency>();
foreach (IExportStrategy exportStrategy in locator.GetAllStrategies())
{
foreach (ExportStrategyDependency exportStrategyDependency in exportStrategy.DependsOn)
{
if (exportStrategyDependency.HasValueProvider)
{
continue;
}
if (exportStrategyDependency.ImportName != null)
{
}
else if (exportStrategyDependency.ImportType != null &&
LocateExportByType(locator, exportStrategyDependency))
{
continue;
}
possibleMissingDependencies.Add(new PossibleMissingDependency
{
Dependency = exportStrategyDependency,
Strategy = exportStrategy
});
}
}
possibleMissingDependencies.Sort((x, y) => string.CompareOrdinal(x.Dependency.DebuggerDisplayString, y.Dependency.DebuggerDisplayString));
return possibleMissingDependencies;
}
public GraceDependencyResolver(IExportLocator container)
{
this.container = container;
}
/// <summary>
/// Sets the design time locator
/// </summary>
/// <param name="obj"></param>
/// <param name="value"></param>
public static void SetDesignTimeExportLocator(DependencyObject obj, IExportLocator value)
{
obj.SetValue(DesignTimeExportLocatorProperty, value);
}
