/// <summary>
/// Helper method use to differentiate behavior between request handlers and notification
/// handlers. Request handlers should only be added once (so set addIfAlreadyExists to false)
/// Notification handlers should all be added (set addIfAlreadyExists to true)
/// </summary>
/// <param name="serviceRegistrar"> </param>
/// <param name="registrationScope"> </param>
/// <param name="openRequestInterface"> </param>
/// <param name="assembliesToScan"> </param>
/// <param name="addIfAlreadyExists"> </param>
private static IServiceRegistrar ConnectImplementationsToTypesClosing(this IServiceRegistrar serviceRegistrar,
RegistrationScope registrationScope,
Type openRequestInterface,
IEnumerable <Assembly> assembliesToScan,
bool addIfAlreadyExists)
{
if (!assembliesToScan.Any())
{
assembliesToScan = AppDomain.CurrentDomain.GetAssemblies();
}
var concretions = new List <Type>();
var interfaces = new List <Type>();
foreach (var type in assembliesToScan.SelectMany(a => a.DefinedTypes).Where(t => !t.IsOpenGeneric()))
{
var interfaceTypes = Enumerable.ToArray <Type>(type.FindInterfacesThatClose(openRequestInterface));
if (!interfaceTypes.Any())
{
continue;
}
if (type.IsConcrete())
{
concretions.Add(type);
}
foreach (var interfaceType in interfaceTypes)
{
interfaces.Fill(interfaceType);
}
}
foreach (var @interface in interfaces)
{
var exactMatches = concretions.Where(x => x.CanBeCastTo(@interface)).ToList();
if (addIfAlreadyExists)
{
foreach (var type in exactMatches)
{
serviceRegistrar.Register(@interface, type, registrationScope);
}
}
else
{
if (exactMatches.Count > 1)
{
exactMatches.RemoveAll(m => !IsMatchingWithInterface(m, @interface));
}
foreach (var type in exactMatches)
{
serviceRegistrar.Register(@interface, type, registrationScope);
}
}
if ([email protected]())
{
serviceRegistrar.AddConcretionsThatCouldBeClosed(registrationScope, @interface, concretions);
}
}
return(serviceRegistrar);
}
