public static IServiceCollection UseBootstrapper(
this IServiceCollection services,
Action <IInitializersConfigurator> config,
IInitializersValidator validator = null,
IProcessConstructor constructor = null)
{
if (config == null)
{
throw new ArgumentNullException(nameof(config));
}
var init = new InitializerConfigurator();
config(init);
return(UseBootstrapperInternal(services, init, validator, constructor));
}
private static IServiceCollection UseBootstrapperInternal(
IServiceCollection services,
IEnumerable <Type> initializers,
IInitializersValidator validator = null,
IProcessConstructor constructor = null)
{
if (initializers == null)
{
throw new ArgumentNullException(nameof(initializers));
}
foreach (var type in initializers)
{
services.AddSingleton(typeof(IInitializer), type);
}
if (services == null)
{
throw new ArgumentNullException(nameof(services));
}
if (validator == null)
{
services.AddSingleton(typeof(IInitializersValidator), typeof(DefaultInitializersValidator));
}
else
{
services.AddSingleton(validator);
}
if (constructor == null)
{
services.AddSingleton(typeof(IProcessConstructor), typeof(DefaultProcessConstructor));
services.AddSingleton(typeof(IProcessOptimizer), typeof(DefaultProcessOptimizer));
}
else
{
services.AddSingleton(constructor);
}
return(services.AddHostedService <BootstrapperHostedService>());
}
public BootstrapperHostedService(IEnumerable <IInitializer> initializers, ILogger <BootstrapperHostedService> logger, IInitializersValidator validator, IProcessConstructor constructor)
: base(logger, initializers, validator, constructor)
{
StateChanged += (_, states) => logger.LogInformation($"Bootstrapper state: {states}.");
}
public DefaultProcessConstructor(IInitializersValidator validator, IProcessOptimizer optimizer)
{
_validator = validator ?? throw new ArgumentNullException(nameof(validator));
_optimizer = optimizer ?? throw new ArgumentNullException(nameof(optimizer));
}
public Bootstrapper(ILogger <Bootstrapper> logger, IEnumerable <IInitializer> initializers, IInitializersValidator validator, IProcessConstructor builder)
{
Logger = logger ?? throw new ArgumentNullException(nameof(logger));
var immutableInitializers = initializers?.ToImmutableArray() ?? throw new ArgumentNullException(nameof(initializers));
if (validator == null)
{
throw new ArgumentNullException(nameof(validator));
}
if (builder == null)
{
throw new ArgumentNullException(nameof(builder));
}
var result = validator.Validate(immutableInitializers);
if (!result.IsValid)
{
throw new ValidationException(result);
}
AdditionalTime = TimeSpan.FromSeconds(5);
StartProcess = new Lazy <IProcess>(() => builder.BuildStartupProcess(immutableInitializers));
StopProcess = new Lazy <IProcess>(() => builder.BuildShutdownProcess(immutableInitializers));
}
