private object Invoke(Type type, string[] methodNames, IServiceCollection services)
{
if (type == null)
{
return(null);
}
MethodInfo method = null;
// ReSharper disable once ForCanBeConvertedToForeach
for (var i = 0; i < methodNames.Length; i++)
{
method = type.GetTypeInfo().GetDeclaredMethod(methodNames[i]);
if (method != null)
{
break;
}
}
if (method == null)
{
return(null);
}
try
{
var instance = !method.IsStatic
? ActivatorUtilities.GetServiceOrCreateInstance(GetHostServices(), type)
: null;
var parameters = method.GetParameters();
var arguments = new object[parameters.Length];
for (var i = 0; i < parameters.Length; i++)
{
var parameterType = parameters[i].ParameterType;
arguments[i] = parameterType == typeof(IServiceCollection)
? services
: ActivatorUtilities.GetServiceOrCreateInstance(GetHostServices(), parameterType);
}
return(method.Invoke(instance, arguments));
}
catch (Exception ex)
{
if (ex is TargetInvocationException)
{
ex = ex.InnerException;
}
_logger.Value.LogWarning(
DesignCoreStrings.InvokeStartupMethodFailed(method.Name, type.DisplayName(), ex.Message));
_logger.Value.LogDebug(ex.ToString());
return(null);
}
}
public void Invoke_warns_on_error()
{
var log = new List <Tuple <LogLevel, string> >();
var startup = new StartupInvoker(
new LazyRef <ILogger>(() => new ListLoggerFactory(log).CreateLogger("Test")),
MockAssembly.Create(typeof(BadStartup)),
/*environment:*/ null,
"Irrelevant");
var services = startup.ConfigureServices();
Assert.NotNull(services);
Assert.Equal(
DesignCoreStrings.InvokeStartupMethodFailed(
"ConfigureServices",
nameof(BadStartup),
"Something went wrong."),
log[0].Item2);
}