/// <summary>
/// Initializes a new instance of the <see cref="ConfigureServicesContext"/> class.
/// </summary>
public ConfigureMiddlewareContext(IConfiguration configuration, IWebHostEnvironment hostingEnvironment, IServiceProvider serviceProvider, StartupModulesOptions options)
{
Configuration = configuration;
HostingEnvironment = hostingEnvironment;
ServiceProvider = serviceProvider;
Options = options;
}
/// <summary>
/// Configures startup modules with the specified configuration for <see cref="StartupModulesOptions"/>.
/// </summary>
/// <param name="builder">The <see cref="IWebHostBuilder"/> instance.</param>
/// <param name="configure">A callback to configure <see cref="StartupModulesOptions"/>.</param>
/// <returns>The <see cref="IWebHostBuilder"/> instance.</returns>
public static IWebHostBuilder UseStartupModules(this IWebHostBuilder builder, Action <StartupModulesOptions> configure)
{
if (builder == null)
{
throw new ArgumentNullException(nameof(builder));
}
if (configure == null)
{
throw new ArgumentNullException(nameof(configure));
}
var options = new StartupModulesOptions();
configure(options);
if (options.StartupModules.Count == 0 && options.ApplicationInitializers.Count == 0)
{
// Nothing to do here
return(builder);
}
var runner = new StartupModuleRunner(options);
builder.ConfigureServices((hostContext, services) =>
{
services.AddSingleton <IStartupFilter>(sp => ActivatorUtilities.CreateInstance <ModulesStartupFilter>(sp, runner));
var configureServicesContext = new ConfigureServicesContext(hostContext.Configuration, hostContext.HostingEnvironment, options);
runner.ConfigureServices(services, hostContext.Configuration, hostContext.HostingEnvironment);
});
return(builder);
}
/// <summary>
/// Initializes a new instance of the <see cref="StartupModuleRunner"/> class.
/// </summary>
/// <param name="options">The <see cref="StartupModulesOptions"/> to discover <see cref="IStartupModule"/>'s.</param>
public StartupModuleRunner(StartupModulesOptions options)
{
_options = options;
}
/// <summary>
/// Initializes a new instance of the <see cref="ConfigureServicesContext"/> class.
/// </summary>
public ConfigureServicesContext(IConfiguration configuration, IWebHostEnvironment hostingEnvironment, StartupModulesOptions options)
{
Configuration = configuration;
HostingEnvironment = hostingEnvironment;
Options = options;
}