/// <summary>
/// Creates dependent registrations from given discoveredAssemblies
/// </summary>
public virtual ICollection <DependentRegistration> CreateDependentRegistrations(IEnumerable <Assembly> assemblies)
{
var assemblyList = assemblies.ToList();
var readonlyAssemblies = new ReadOnlyCollection <Assembly>(assemblyList);
var registrations = readonlyAssemblies
.SelectMany(GetExportedTypes)
.SelectMany(ConvertToDependentRegistrations)
.ToList();
var discoveredRegistrations = new ReadOnlyCollection <DependentRegistration>(registrations.OfType <DependentRegistration>().ToList());
var configureExpression = new DependencyConfigurationExpression(readonlyAssemblies);
var externals = BuildExternalRegistrations(registrations, configureExpression);
return(discoveredRegistrations.Union(externals).ToList());
}
/// <summary>
/// Builds a configurationexression to discover external dependencies
/// </summary>
/// <param name="attributes"></param>
/// <param name="configurationExpression"></param>
/// <returns></returns>
protected virtual IEnumerable <DependentRegistration> BuildExternalRegistrations(ICollection <AttributeDependentBase> attributes,
DependencyConfigurationExpression configurationExpression)
{
const BindingFlags flags = BindingFlags.Public | BindingFlags.Static;
foreach (var external in attributes.OfType <DependencyConfigurationRegistration>())
{
try
{
var info = external.Implementation.GetTypeInfo()
.GetMethod(external.Configurator.MethodName, flags);
// ReSharper disable once PossibleNullReferenceException
info.Invoke(null, new object[] { configurationExpression });
}
catch (Exception e)
{
ExceptionCollector.AddException(new Exception($"Failed to configure {external.Implementation.FullName}!", e));
}
}
return(configurationExpression.Build());
}
