// TODO: Can we find a better name for this?
public ComponentReplacementBuilder <TService> CurrentlyImplementedBy(Type implementationType)
{
if (implementationType == null)
{
throw new ArgumentNullException(nameof(implementationType));
}
if (!ServiceTypes.First().IsAssignableFrom(implementationType))
{
throw new ArgumentException(
$"Type '{implementationType.FullName}' is not an implementation of '{ServiceTypes.First().FullName}'",
nameof(implementationType));
}
OldImplementationType = implementationType;
return(this);
}
public override IReplacement ReplacedBy(Type implementationType)
{
if (implementationType == null)
{
throw new ArgumentNullException(nameof(implementationType));
}
if (!ServiceTypes.First().IsAssignableFrom(implementationType))
{
throw new ArgumentException(
$"Type '{implementationType.FullName}' is not an implementation of '{ServiceTypes.First().FullName}'",
nameof(implementationType));
}
return(new UnnamedComponentReplacement <TService>
{
ServiceTypes = ServiceTypes,
OldImplementationType = OldImplementationType,
NewImplementationType = implementationType,
IsActive = IsActive
});
}
public void Apply(ICompactContainer container)
{
if (ImplementationType == null)
{
if (instance != null)
{
ImplementationType = instance.GetType();
}
else
{
if (ServiceTypes.Count() != 1)
{
throw new CompactContainerException("Cannot infer implementation type when more than one service is specified: " +
ServiceTypes.Select(t => t.Name).ToCommaSeparatedString());
}
ImplementationType = ServiceTypes.Single();
}
}
if (ImplementationType.IsAbstract)
{
throw new CompactContainerException("Cannot register implementation type " + ImplementationType.FullName +
" because it is abstract");
}
// name calculation
if (name == null)
{
if (ImplementationType != null)
{
name = ImplementationType.FullName;
}
else if (instance != null)
{
name = instance.GetType().FullName;
}
else if (ServiceTypes.Count() > 0)
{
name = ServiceTypes.First().FullName;
}
else
{
throw new CompactContainerException("Cannot infer name for component");
}
}
var ci = new ComponentInfo(name, ServiceTypes, ImplementationType, lifestyle ?? container.DefaultLifestyle)
{
Instance = instance,
};
if (registrationParts != null)
{
foreach (var part in registrationParts)
{
part.ApplyTo(ci);
}
}
container.AddComponentInfo(ci);
}
