I'm trying to implement IHandlerSelector and am encountering what
seems to me like strange behavior. The HasOpinionAbout and
SelectHandler methods never get both the key AND the service. When
they get a key, the service is System.Object, and when they get a
service the key is null. Am I doing something wrong?
Here's my code:
First, the IHandlerSelector implementation:
internal class RepositoryHandlerSelector : IHandlerSelector
{
private static readonly string
writeRepositoryInterfaceTypeName = typeof(IWriteRepository<>).Name;
public bool HasOpinionAbout(string key, Type service)
{
return string.IsNullOrEmpty(key) && service.Name ==
writeRepositoryInterfaceTypeName;
}
public IHandler SelectHandler(string key, Type service,
IHandler[] handlers)
{
return handlers.FirstOrDefault(handler => !
handler.ComponentModel.Implementation.Name.EndsWith("Decorator"));
}
}
Next, the relevant parts of the wiring:
container.Kernel.AddHandlerSelector(new RepositoryHandlerSelector());
container.Register
(
AllTypes.FromAssembly(assembly)
.IncludeNonPublicTypes()
.BasedOn(typeof(IWriteRepository<>)).WithService.Base()
.Configure(component =>
component.LifeStyle.Transient)
);
container.Register
(
Component.For(typeof(IWriteRepository<>))
.ImplementedBy(typeof(SecurityRepositoryDecorator<>))
.Named("securityDecorator")
.Parameters(Parameter.ForKey("inner").Eq("$
{transactionDecorator}"))
);
container.Register
(
Component.For(typeof(IWriteRepository<>))
.ImplementedBy(typeof(TransactativeRepositoryDecorator<>))
.Named("transactionDecorator")
);
// test
var repository =
container.Resolve<IWriteRepository<Document>>("securityDecorator");
When the line under test is run, is where I'm getting the above-
mentioned phenomena.
Any ideas?
Joni
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