/// <summary>
/// Instantiates the service described by the <paramref name="serviceRequest"/>.
/// </summary>
/// <param name="serviceRequest">The <see cref="IServiceRequest"/> that describes the service that needs to be instantiated.</param>
/// <returns>A valid object reference if the service can be found; otherwise, it will return <c>null</c>.</returns>
public virtual object GetService(IServiceRequest serviceRequest)
{
// Allow users to intercept the instantiation process
if (_preProcessor != null)
_preProcessor.Preprocess(serviceRequest);
var factoryRequest = new FactoryRequest
{
ServiceType = serviceRequest.ServiceType,
ServiceName = serviceRequest.ServiceName,
Arguments = serviceRequest.ActualArguments,
Container = _container
};
var instance = _creator.CreateFrom(factoryRequest, serviceRequest.ActualFactory);
// Postprocess the results
var result = new ServiceRequestResult
{
ServiceName = serviceRequest.ServiceName,
ActualResult = instance,
Container = _container,
OriginalResult = instance,
ServiceType = serviceRequest.ServiceType,
AdditionalArguments = serviceRequest.ActualArguments
};
if (_postProcessor != null)
_postProcessor.PostProcess(result);
return result.ActualResult ?? result.OriginalResult;
}
/// <summary>
/// Creates an object instance.
/// </summary>
/// <param name="factory">The target factory.</param>
/// <param name="serviceType">The requested service type.</param>
/// <param name="container">The target service contaienr.</param>
/// <param name="additionalArguments">The additional arguments that will be used to create the service instance.</param>
/// <returns>A service instance.</returns>
public static object CreateInstance(this IFactory factory, Type serviceType,
IServiceContainer container, params object[] additionalArguments)
{
var request = new FactoryRequest()
{
ServiceName = null,
ServiceType = serviceType,
Arguments = additionalArguments
};
return(factory.CreateInstance(request));
}
/// <summary>
/// Creates an object instance.
/// </summary>
/// <param name="factory">The target factory.</param>
/// <param name="serviceType">The requested service type.</param>
/// <param name="container">The target service contaienr.</param>
/// <param name="additionalArguments">The additional arguments that will be used to create the service instance.</param>
/// <returns>A service instance.</returns>
public static object CreateInstance(this IFactory factory, Type serviceType,
IServiceContainer container, params object[] additionalArguments)
{
var request = new FactoryRequest()
{
ServiceName = null,
ServiceType = serviceType,
Arguments = additionalArguments
};
return factory.CreateInstance(request);
}
public void GenericFactoryAdapterShouldCallUntypedFactoryInstance()
{
var container = new ServiceContainer();
var mockFactory = new Mock<IFactory<ISerializable>>();
var mockService = new Mock<ISerializable>();
var adapter = new FactoryAdapter<ISerializable>(mockFactory.Object);
// The adapter itself should call the container on creation
mockFactory.Expect(f => f.CreateInstance(It.Is<IFactoryRequest>(request => request.Container == container)))
.Returns(mockService.Object);
Assert.IsInstanceOfType(typeof(IFactory), adapter);
var factoryRequest = new FactoryRequest()
{
ServiceName = null,
ServiceType = typeof(ISerializable),
Container = container
};
adapter.CreateInstance(factoryRequest);
mockFactory.VerifyAll();
}
/// <summary>
/// Instantiates the service described by the <paramref name="serviceRequest"/>.
/// </summary>
/// <param name="serviceRequest">The <see cref="IServiceRequest"/> that describes the service that needs to be instantiated.</param>
/// <returns>A valid object reference if the service can be found; otherwise, it will return <c>null</c>.</returns>
public virtual object GetService(IServiceRequest serviceRequest)
{
// Allow users to intercept the instantiation process
if (_preProcessor != null)
{
_preProcessor.Preprocess(serviceRequest);
}
var factoryRequest = new FactoryRequest
{
ServiceType = serviceRequest.ServiceType,
ServiceName = serviceRequest.ServiceName,
Arguments = serviceRequest.ActualArguments,
Container = _container
};
var instance = _creator.CreateFrom(factoryRequest, serviceRequest.ActualFactory);
// Postprocess the results
var result = new ServiceRequestResult
{
ServiceName = serviceRequest.ServiceName,
ActualResult = instance,
Container = _container,
OriginalResult = instance,
ServiceType = serviceRequest.ServiceType,
AdditionalArguments = serviceRequest.ActualArguments
};
if (_postProcessor != null)
{
_postProcessor.PostProcess(result);
}
return(result.ActualResult ?? result.OriginalResult);
}
public void SingletonFactoryShouldCreateTheSameInstanceOnce()
{
var factory = new SingletonFactory<ISerializable>(createInstance);
var container = new ServiceContainer();
var request = new FactoryRequest()
{
ServiceName = null,
Arguments = new object[0],
Container = container,
ServiceType = typeof(ISerializable)
};
ISerializable first = factory.CreateInstance(request);
ISerializable second = factory.CreateInstance(request);
// Both instances must be the same
Assert.AreSame(first, second);
Assert.IsNotNull(first);
Assert.IsNotNull(second);
}
