/// <summary>
/// Enables Managed Extensibility Framework two-way integration.
/// </summary>
/// <param name="unityContainer">Target container.</param>
/// <returns>
/// <see cref="CompositionIntegration"/> instance.
/// </returns>
public static CompositionIntegration EnableCompositionIntegration(
this IUnityContainer unityContainer)
{
lock (unityContainer)
{
var extension = unityContainer.Configure <CompositionIntegration>();
if (extension == null)
{
var adapter = new UnityContainerAdapter(unityContainer);
var containerExportProvider = new ContainerExportProvider(adapter);
var parentExtension = (CompositionIntegration)null;
if (unityContainer.Parent != null)
{
parentExtension = unityContainer.Parent.Configure <CompositionIntegration>();
}
if (parentExtension != null)
{
// Get the parent ContainerExportProvider
var parentContainerExportProvider = (ContainerExportProvider)parentExtension.Providers.Where(
ep => typeof(ContainerExportProvider).IsAssignableFrom(ep.GetType())).First();
// Collect all the exports provided by the parent container and add
// them to the child export provider
foreach (var definition in parentContainerExportProvider.FactoryExportProvider.ReadOnlyDefinitions)
{
containerExportProvider.FactoryExportProvider.Register(
definition.ContractType,
definition.RegistrationName);
}
// Grab all the parent export providers except the container ones
var parentExporters = new List <ExportProvider>(
parentExtension.Providers.Where(
ep => !typeof(ContainerExportProvider).IsAssignableFrom(ep.GetType())))
{
containerExportProvider
};
var catalog = new AggregateCatalog(parentExtension.Catalogs);
extension = new CompositionIntegration(true, parentExporters.ToArray());
extension.Catalogs.Add(catalog);
}
else
{
extension = new CompositionIntegration(true, containerExportProvider);
}
unityContainer.AddExtension(extension);
}
return(extension);
}
}
/// <summary>
/// Enables Managed Extensibility Framework two-way integration.
/// </summary>
/// <param name="unityContainer">Target container.</param>
/// <returns>
/// <see cref="CompositionIntegration"/> instance.
/// </returns>
public static CompositionIntegration EnableCompositionIntegration(
this IUnityContainer unityContainer)
{
lock (unityContainer)
{
var extension = unityContainer.Configure<CompositionIntegration>();
if (extension == null)
{
var adapter = new UnityContainerAdapter(unityContainer);
var containerExportProvider = new ContainerExportProvider(adapter);
var parentExtension = (CompositionIntegration) null;
if (unityContainer.Parent != null)
{
parentExtension = unityContainer.Parent.Configure<CompositionIntegration>();
}
if (parentExtension != null)
{
// Get the parent ContainerExportProvider
var parentContainerExportProvider = (ContainerExportProvider)parentExtension.Providers.Where(
ep => typeof(ContainerExportProvider).IsAssignableFrom(ep.GetType())).First();
// Collect all the exports provided by the parent container and add
// them to the child export provider
foreach (var definition in parentContainerExportProvider.RegistrationBasedFactoryExportProvider.ReadOnlyDefinitions)
{
containerExportProvider.RegistrationBasedFactoryExportProvider.Register(
definition.ContractType,
definition.RegistrationName);
}
// Grab all the parent export providers except the container ones
var parentExporters = new List<ExportProvider>(
parentExtension.Providers.Where(
ep => !typeof (ContainerExportProvider).IsAssignableFrom(ep.GetType())))
{ containerExportProvider };
var catalog = new AggregateCatalog(parentExtension.Catalogs);
extension = new CompositionIntegration(true, parentExporters.ToArray());
extension.Catalogs.Add(catalog);
}
else
{
extension = new CompositionIntegration(true, containerExportProvider);
}
unityContainer.AddExtension(extension);
}
return extension;
}
}
