我在温莎城堡遇到了非常奇怪的情况，工厂注册为LifeStyle.Singleton似乎在某个时候被处置。几个小时后，我能够将生产案例简化为以下摘录：
编辑 经过一些调查，我已经将问题简化为几乎微不足道的情况（原始版本保存在下面）：
public interface IFactory {
IAnotherFactory CreateAnother();
}
public interface IAnotherFactory {
A CreateA();
}
public class A {}
[Test]
public void IsItABug() {
Container.Kernel.AddFacility<TypedFactoryFacility>();
Container.Register(Component.For<A>().LifestyleTransient(),
Component.For<IFactory>().AsFactory().LifestyleTransient(),
Component.For<IAnotherFactory>().AsFactory().LifestyleSingleton());
// uncomment this line to make test pass
// var makeAnotherUsedInMainContainerScopeBeforeFactoryCreation =
// Сontainer.Resolve<IAnotherFactory>();
var factory = Container.Resolve<IFactory>();
factory.CreateAnother();
Container.Release(factory);
var another = Container.Resolve<IAnotherFactory>();
another.CreateA(); // throws ObjectDisposedException
}
Ant 现在的异常也短得多：
System.ObjectDisposedException : The factory was disposed and can no longer be used.
Object name: 'this'.
at Castle.Facilities.TypedFactory.Internal.TypedFactoryInterceptor.Intercept(IInvocation invocation) in TypedFactoryInterceptor.cs: line 59
at Castle.DynamicProxy.AbstractInvocation.Proceed() in d:\work\16de7b8c88ab14af\src\Castle.Core\DynamicProxy\AbstractInvocation.cs: line 145
at Castle.Proxies.IAnotherFactoryProxy.CreateA()
at Castle.Windsor.Tests.Facilities.TypedFactory.Components.TypedFactoryAndSubContainersTestCase.IsItABug() in TypedFactoryAndSubContainersTestCase.cs: line 102
我相信现在这不再是一个问题了，因为温莎过去有过非常相似的问题（IOC-345），所以我写了失败的测试并提交了一个问题
原始变体：
public interface IFactory {
Y CreateY();
Z CreateZ();
void Release(Y obj);
}
public class X {
public X(IFactory factory) {
var y = factory.CreateY();
factory.Release(y);
factory.CreateY();
}
}
public class Y {
public Y(IFactory factory) {
factory.CreateZ();
}
}
public class Z {
public Z(IAnotherFactory anotherFactory) {
anotherFactory.CreateA(); // <--- on second time anotherFactory is disposed already O_o
}
}
public interface IAnotherFactory {
A CreateA();
}
public class A {}
[TestFixture]
public class Class1
{
[Test]
public void IsItABug()
{
var c = new WindsorContainer();
c.Kernel.AddFacility<TypedFactoryFacility>();
c.Register(Component.For<X>().LifestyleTransient(),
Component.For<Y>().LifestyleTransient(),
Component.For<Z>().LifestyleTransient(),
Component.For<A>().LifestyleTransient(),
Component.For<IFactory>().AsFactory().LifestyleTransient(),
Component.For<IAnotherFactory>().AsFactory().LifestyleSingleton());
c.Resolve<X>();
}
}
在上面带有 Windsor 3.2 的标记线上，我得到了异常：
Castle.MicroKernel.ComponentActivator.ComponentActivatorException : ComponentActivator: could not instantiate Sandbox.GM.Config.X
----> System.Reflection.TargetInvocationException : Exception has been thrown by the target of an invocation.
----> Castle.MicroKernel.ComponentActivator.ComponentActivatorException : ComponentActivator: could not instantiate Sandbox.GM.Config.Y
----> System.Reflection.TargetInvocationException : Exception has been thrown by the target of an invocation.
----> Castle.MicroKernel.ComponentActivator.ComponentActivatorException : ComponentActivator: could not instantiate Sandbox.GM.Config.Z
----> System.Reflection.TargetInvocationException : Exception has been thrown by the target of an invocation.
----> System.ObjectDisposedException : The factory was disposed and can no longer be used.
Object name: 'this'.
at Castle.MicroKernel.ComponentActivator.DefaultComponentActivator.CreateInstanceCore(ConstructorCandidate constructor, Object[] arguments, Type implType)
at Castle.MicroKernel.ComponentActivator.DefaultComponentActivator.CreateInstance(CreationContext context, ConstructorCandidate constructor, Object[] arguments)
at Castle.MicroKernel.ComponentActivator.DefaultComponentActivator.Instantiate(CreationContext context)
at Castle.MicroKernel.ComponentActivator.DefaultComponentActivator.InternalCreate(CreationContext context)
at Castle.MicroKernel.ComponentActivator.AbstractComponentActivator.Create(CreationContext context, Burden burden)
at Castle.MicroKernel.Lifestyle.AbstractLifestyleManager.CreateInstance(CreationContext context, Boolean trackedExternally)
at Castle.MicroKernel.Lifestyle.AbstractLifestyleManager.Resolve(CreationContext context, IReleasePolicy releasePolicy)
at Castle.MicroKernel.Handlers.DefaultHandler.ResolveCore(CreationContext context, Boolean requiresDecommission, Boolean instanceRequired, ref Burden burden)
at Castle.MicroKernel.Handlers.DefaultHandler.Resolve(CreationContext context, Boolean instanceRequired)
at Castle.MicroKernel.Handlers.AbstractHandler.Resolve(CreationContext context)
at Castle.MicroKernel.DefaultKernel.ResolveComponent(IHandler handler, Type service, IDictionary additionalArguments, IReleasePolicy policy)
at Castle.MicroKernel.DefaultKernel.Castle.MicroKernel.IKernelInternal.Resolve(Type service, IDictionary arguments, IReleasePolicy policy)
at Castle.MicroKernel.DefaultKernel.Resolve(Type service, IDictionary arguments)
at Castle.Windsor.WindsorContainer.Resolve()
at TestApp.Class1.IsItABug() in Class1.cs: line 56
--TargetInvocationException
at System.RuntimeMethodHandle.InvokeMethod(Object target, Object[] arguments, Signature sig, Boolean constructor)
at System.Reflection.RuntimeConstructorInfo.Invoke(Object obj, BindingFlags invokeAttr, Binder binder, Object[] parameters, CultureInfo culture)
at Castle.MicroKernel.ComponentActivator.DefaultComponentActivator.FastCreateInstance(Type implType, Object[] arguments, ConstructorCandidate constructor)
at Castle.MicroKernel.ComponentActivator.DefaultComponentActivator.CreateInstanceCore(ConstructorCandidate constructor, Object[] arguments, Type implType)
--ComponentActivatorException
at Castle.MicroKernel.ComponentActivator.DefaultComponentActivator.CreateInstanceCore(ConstructorCandidate constructor, Object[] arguments, Type implType)
at Castle.MicroKernel.ComponentActivator.DefaultComponentActivator.CreateInstance(CreationContext context, ConstructorCandidate constructor, Object[] arguments)
at Castle.MicroKernel.ComponentActivator.DefaultComponentActivator.Instantiate(CreationContext context)
at Castle.MicroKernel.ComponentActivator.DefaultComponentActivator.InternalCreate(CreationContext context)
at Castle.MicroKernel.ComponentActivator.AbstractComponentActivator.Create(CreationContext context, Burden burden)
at Castle.MicroKernel.Lifestyle.AbstractLifestyleManager.CreateInstance(CreationContext context, Boolean trackedExternally)
at Castle.MicroKernel.Lifestyle.AbstractLifestyleManager.Resolve(CreationContext context, IReleasePolicy releasePolicy)
at Castle.MicroKernel.Handlers.DefaultHandler.ResolveCore(CreationContext context, Boolean requiresDecommission, Boolean instanceRequired, ref Burden burden)
at Castle.MicroKernel.Handlers.DefaultHandler.Resolve(CreationContext context, Boolean instanceRequired)
at Castle.MicroKernel.Handlers.AbstractHandler.Resolve(CreationContext context)
at Castle.MicroKernel.DefaultKernel.ResolveComponent(IHandler handler, Type service, IDictionary additionalArguments, IReleasePolicy policy)
at Castle.MicroKernel.DefaultKernel.Castle.MicroKernel.IKernelInternal.Resolve(Type service, IDictionary arguments, IReleasePolicy policy)
at Castle.Facilities.TypedFactory.TypedFactoryComponentResolver.Resolve(IKernelInternal kernel, IReleasePolicy scope)
at Castle.Facilities.TypedFactory.Internal.TypedFactoryInterceptor.Resolve(IInvocation invocation)
at Castle.Facilities.TypedFactory.Internal.TypedFactoryInterceptor.Intercept(IInvocation invocation)
at Castle.DynamicProxy.AbstractInvocation.Proceed()
at Castle.Proxies.IFactoryProxy.CreateY()
at TestApp.X..ctor(IFactory factory) in Class1.cs: line 19
--TargetInvocationException
at System.RuntimeMethodHandle.InvokeMethod(Object target, Object[] arguments, Signature sig, Boolean constructor)
at System.Reflection.RuntimeConstructorInfo.Invoke(Object obj, BindingFlags invokeAttr, Binder binder, Object[] parameters, CultureInfo culture)
at Castle.MicroKernel.ComponentActivator.DefaultComponentActivator.FastCreateInstance(Type implType, Object[] arguments, ConstructorCandidate constructor)
at Castle.MicroKernel.ComponentActivator.DefaultComponentActivator.CreateInstanceCore(ConstructorCandidate constructor, Object[] arguments, Type implType)
--ComponentActivatorException
at Castle.MicroKernel.ComponentActivator.DefaultComponentActivator.CreateInstanceCore(ConstructorCandidate constructor, Object[] arguments, Type implType)
at Castle.MicroKernel.ComponentActivator.DefaultComponentActivator.CreateInstance(CreationContext context, ConstructorCandidate constructor, Object[] arguments)
at Castle.MicroKernel.ComponentActivator.DefaultComponentActivator.Instantiate(CreationContext context)
at Castle.MicroKernel.ComponentActivator.DefaultComponentActivator.InternalCreate(CreationContext context)
at Castle.MicroKernel.ComponentActivator.AbstractComponentActivator.Create(CreationContext context, Burden burden)
at Castle.MicroKernel.Lifestyle.AbstractLifestyleManager.CreateInstance(CreationContext context, Boolean trackedExternally)
at Castle.MicroKernel.Lifestyle.AbstractLifestyleManager.Resolve(CreationContext context, IReleasePolicy releasePolicy)
at Castle.MicroKernel.Handlers.DefaultHandler.ResolveCore(CreationContext context, Boolean requiresDecommission, Boolean instanceRequired, ref Burden burden)
at Castle.MicroKernel.Handlers.DefaultHandler.Resolve(CreationContext context, Boolean instanceRequired)
at Castle.MicroKernel.Handlers.AbstractHandler.Resolve(CreationContext context)
at Castle.MicroKernel.DefaultKernel.ResolveComponent(IHandler handler, Type service, IDictionary additionalArguments, IReleasePolicy policy)
at Castle.MicroKernel.DefaultKernel.Castle.MicroKernel.IKernelInternal.Resolve(Type service, IDictionary arguments, IReleasePolicy policy)
at Castle.Facilities.TypedFactory.TypedFactoryComponentResolver.Resolve(IKernelInternal kernel, IReleasePolicy scope)
at Castle.Facilities.TypedFactory.Internal.TypedFactoryInterceptor.Resolve(IInvocation invocation)
at Castle.Facilities.TypedFactory.Internal.TypedFactoryInterceptor.Intercept(IInvocation invocation)
at Castle.DynamicProxy.AbstractInvocation.Proceed()
at Castle.Proxies.IFactoryProxy.CreateZ()
at TestApp.Y..ctor(IFactory factory) in Class1.cs: line 25
--TargetInvocationException
at System.RuntimeMethodHandle.InvokeMethod(Object target, Object[] arguments, Signature sig, Boolean constructor)
at System.Reflection.RuntimeConstructorInfo.Invoke(Object obj, BindingFlags invokeAttr, Binder binder, Object[] parameters, CultureInfo culture)
at Castle.MicroKernel.ComponentActivator.DefaultComponentActivator.FastCreateInstance(Type implType, Object[] arguments, ConstructorCandidate constructor)
at Castle.MicroKernel.ComponentActivator.DefaultComponentActivator.CreateInstanceCore(ConstructorCandidate constructor, Object[] arguments, Type implType)
--ObjectDisposedException
at Castle.Facilities.TypedFactory.Internal.TypedFactoryInterceptor.Intercept(IInvocation invocation)
at Castle.DynamicProxy.AbstractInvocation.Proceed()
at Castle.Proxies.IAnotherFactoryProxy.CreateA()
at TestApp.Z..ctor(IAnotherFactory anotherFactory) in Class1.cs: line 31
有任何想法吗？