private static Task <App <T> > BuildAppAsync(CancellationTokenSource cancellationTokenSource,
string[] commandLineArgs,
IReadOnlyDictionary <string, string> environmentVariables,
IReadOnlyCollection <Assembly> scanAssemblies,
params object[] instances)
{
MultiSourceKeyValueConfiguration startupConfiguration =
ConfigurationInitialization.InitializeStartupConfiguration(commandLineArgs,
environmentVariables,
scanAssemblies);
ConfigurationInstanceHolder configurationInstanceHolder =
GetConfigurationRegistrations(startupConfiguration, scanAssemblies);
var assemblyResolver = new InstanceApplicationAssemblyResolver(scanAssemblies.SafeToImmutableArray());
configurationInstanceHolder.AddInstance(assemblyResolver);
configurationInstanceHolder.AddInstance(configurationInstanceHolder);
foreach (object instance in instances.NotNull())
{
configurationInstanceHolder.AddInstance(instance);
}
var loggingLevelSwitch = new LoggingLevelSwitch();
configurationInstanceHolder.AddInstance(loggingLevelSwitch);
configurationInstanceHolder.AddInstance(cancellationTokenSource);
ApplicationPaths paths =
configurationInstanceHolder.GetInstances <ApplicationPaths>().SingleOrDefault().Value ??
new ApplicationPaths();
AppPathHelper.SetApplicationPaths(paths, commandLineArgs);
if (paths.BasePath is null)
{
throw new InvalidOperationException("Base path is not set");
}
var startupLoggerConfigurationHandlers = assemblyResolver.GetAssemblies()
.GetLoadablePublicConcreteTypesImplementing <
IStartupLoggerConfigurationHandler>()
.Select(type =>
configurationInstanceHolder.Create(type) as
IStartupLoggerConfigurationHandler)
.Where(item => item is { }).ToImmutableArray();
public void CreateTypeWithSingletons()
{
var holder = new ConfigurationInstanceHolder();
holder.AddInstance(new EnvironmentConfiguration {
ApplicationBasePath = @"C:\app"
});
EnvironmentConsumer environmentConsumer = holder.Create <EnvironmentConsumer>();
Assert.NotNull(environmentConsumer);
Assert.NotNull(environmentConsumer.EnvironmentConfiguration);
Assert.Equal(@"C:\app", environmentConsumer.EnvironmentConfiguration.ApplicationBasePath);
}