public InvocationInterceptor(
IInvocationWeaveDataProvider weaveDataProvider,
IComponentHolder <IAspectDependencyInjector> dependencyInjectorHolder,
IComponentHolder <IAspectFinalizer> aspectFinalizerHolder)
{
_weaveDataProvider = weaveDataProvider;
_dependencyInjector = dependencyInjectorHolder.Get();
_aspectFinalizer = aspectFinalizerHolder.Get();
}
/// <inheritdoc />
public MethodBoundaryAspect[] CreateBoundaryAspects(IInvocationSignature signature)
{
if (_aspectDeclarationCollector == null)
{
_aspectDeclarationCollector = _aspectDeclarationCollectorHolder.Get();
}
if (_aspectOrderStrategy == null)
{
_aspectOrderStrategy = _orderStrategyHolder.Get();
}
if (_aspectFinalizer == null)
{
_aspectFinalizer = _aspectFinalizerHolder.Get();
}
if (_dependencySelector == null)
{
_dependencySelector = _dependencySelectorHolder.Get();
}
var methodBoundaryAspects = new List <MethodBoundaryAspect>();
var declarations = _aspectDeclarationCollector.CollectAspectDeclarations <MethodBoundaryAspect>(signature);
foreach (var aspect in _aspectOrderStrategy.Order(declarations.Select(d => d.MethodAspect)))
{
var existingAspect = methodBoundaryAspects.Find(aspect.Equals);
// Если у текущего аспекта приоритет выше, чем равного тому,
// что уже есть в коллекции, то заменяем его на новый
if (existingAspect != null && aspect.Order < existingAspect.Order)
{
methodBoundaryAspects.Remove(existingAspect);
}
else if (existingAspect == null)
{
methodBoundaryAspects.Add(aspect);
}
}
for (var i = 0; i < methodBoundaryAspects.Count; i++)
{
var currentAspect = methodBoundaryAspects[i];
currentAspect.InternalOrder = currentAspect.Order + i + 1;
currentAspect.InternalId = Guid.NewGuid();
currentAspect.HasDependencies = _dependencySelector.HasDependencies(currentAspect.GetType());
currentAspect.IsFinalizable = _aspectFinalizer.IsFinalizable(currentAspect);
currentAspect.IsInitializable = ReflectedMethod.IsOverriden(
MethodAspect.GetInitializeMethod(currentAspect));
}
return(methodBoundaryAspects.ToArray());
}
/// <inheritdoc />
public MethodInterceptionAspect CreateInterceptAspect(IInvocationSignature context)
{
if (_aspectDeclarationCollector == null)
{
_aspectDeclarationCollector = _aspectDeclarationCollectorHolder.Get();
}
if (_aspectFinalizer == null)
{
_aspectFinalizer = _aspectFinalizerHolder.Get();
}
var aspectDeclarations = _aspectDeclarationCollector
.CollectAspectDeclarations <MethodInterceptionAspect>(context)
.ToArray();
if (aspectDeclarations.Length > 1)
{
throw new IvorySharpException(
$"Допустимо наличие только одного аспекта типа '{typeof(MethodInterceptionAspect)}'. " +
$"На методе '{context.Method.Name}' типа '{context.DeclaringType.FullName}' задано несколько.");
}
if (aspectDeclarations.Length == 0)
{
return(BypassMethodAspect.Instance);
}
if (_dependencySelector == null)
{
_dependencySelector = _dependencySelectorHolder.Get();
}
var declaration = aspectDeclarations.Single();
declaration.MethodAspect.MulticastTarget = declaration.MulticastTarget;
declaration.MethodAspect.InternalId = Guid.NewGuid();
declaration.MethodAspect.HasDependencies = _dependencySelector.HasDependencies(declaration.MethodAspect.GetType());
declaration.MethodAspect.IsFinalizable = _aspectFinalizer.IsFinalizable(declaration.MethodAspect);
declaration.MethodAspect.IsInitializable = ReflectedMethod.IsOverriden(
MethodAspect.GetInitializeMethod(declaration.MethodAspect));
return(declaration.MethodAspect);
}
