/// <summary>
/// Создать описатель.
/// </summary>
public override ActivePartInfo CreateElement(ExtensionAttachmentContext context, ActivePartAttribute attr)
{
//if (!typeof(IActivePart).IsAssignableFrom(context.Type))
// throw new ExtensibilityException(
// $"Type \'{context.Type}\' must implement interface \'{typeof(IActivePart)}");
Debug.Assert(context.Type.AssemblyQualifiedName != null, "context.Type.AssemblyQualifiedName != null");
return(new ActivePartInfo(context.Type.AssemblyQualifiedName));
}
public override TInfo CreateElement(
ExtensionAttachmentContext context,
TAttr attr)
{
if (_elementType != null && !_elementType.IsAssignableFrom(context.Type))
{
throw new ExtensibilityException($"Type \'{context.Type}\' must inherit/implement \'{_elementType}\'");
}
return(_creator(context, attr));
}
private void Scan(Assembly asm, IEnumerable <Type> types, IExtensionAttachmentStrategy strategy)
{
foreach (var type in types)
{
var ctx = new ExtensionAttachmentContext(ServiceContainer, this, asm, type);
foreach (var attr in CustomAttributeData.GetCustomAttributes(type))
{
strategy.Attach(ctx, attr);
}
}
}
/// <summary>
/// Создать элемент.
/// </summary>
public override ExtensionStrategyFactoryInfo CreateElement(
ExtensionAttachmentContext context,
ExtensionStrategyFactoryAttribute attr)
{
if (!typeof(IExtensionStrategyFactory).IsAssignableFrom(context.Type))
{
throw new InvalidExtensionTypeException(
$"Strategy factory must implement '{typeof (IExtensionStrategyFactory)}' interface");
}
return(new ExtensionStrategyFactoryInfo(context.Type));
}
/// <summary>
/// Подключает расширение.
/// </summary>
protected override void Attach(ExtensionAttachmentContext context, ServiceAttribute attribute)
{
// Single instance for all contracts
var holder = new ServiceHolder(context.Type);
foreach (var contract in attribute.ContractTypes)
{
_publisher.Publish(
contract,
pub => holder.CreateInstance(_publisher));
}
}
/// <summary>
/// Сканирует сборку.
/// </summary>
public void Scan(IExtensionAttachmentStrategy strategy, [NotNull] params Assembly[] assemblies)
{
if (strategy == null)
{
throw new ArgumentNullException(nameof(strategy));
}
if (assemblies == null)
{
throw new ArgumentNullException(nameof(assemblies));
}
foreach (var asm in assemblies)
{
var ctx = new ExtensionAttachmentContext(ServiceContainer, this, asm);
foreach (var attr in CustomAttributeData.GetCustomAttributes(asm))
{
strategy.Attach(ctx, attr);
}
Scan(asm, asm.GetTypes(), strategy);
}
}
/// <summary>
/// Создать элемент.
/// </summary>
public override TestNamedElementInfo CreateElement(
ExtensionAttachmentContext context,
TestNamedElementAttribute attr)
{
return(new TestNamedElementInfo(attr.Name, context.Type));
}
/// <summary>
/// Подключает расширение.
/// </summary>
protected override void Attach(ExtensionAttachmentContext context, SimpleExtensionAttribute attribute)
{
_lastExtensionTypeName = context.Type.AssemblyQualifiedName;
}