/// <summary>
/// Add and configure services
/// </summary>
/// <param name="services">Collection of service descriptors</param>
/// <param name="configuration">Configuration of the application</param>
/// <returns>Service provider</returns>
public IServiceProvider ConfigureServices(IServiceCollection services, IConfiguration configuration)
{
//find startup configurations provided by other assemblies
WebAppTypeFinder typeFinder = new WebAppTypeFinder();
System.Collections.Generic.IEnumerable <Type> startupConfigurations = typeFinder.FindClassesOfType <ICepresStartup>();
//create and sort instances of startup configurations
IOrderedEnumerable <ICepresStartup> instances = startupConfigurations
.Select(startup => (ICepresStartup)Activator.CreateInstance(startup))
.OrderBy(startup => startup.Order);
//configure services
foreach (ICepresStartup instance in instances)
{
instance.ConfigureServices(services, configuration);
}
//register dependencies
CepresConfig config = services.BuildServiceProvider().GetService <CepresConfig>();
_serviceProvider = RegisterDependencies(config, services, typeFinder);
//resolve assemblies here. otherwise, plugins can throw an exception when rendering views
AppDomain.CurrentDomain.AssemblyResolve += CurrentDomain_AssemblyResolve;
return(_serviceProvider);
}
/// <summary>
/// Register dependencies using Autofac
/// </summary>
/// <param name="FileManagerConfig">Startup FileManager configuration parameters</param>
/// <param name="services">Collection of service descriptors</param>
/// <param name="typeFinder">Type finder</param>
protected virtual IServiceProvider RegisterDependencies(CepresConfig config, IServiceCollection services, ITypeFinder typeFinder)
{
//var autofacServiceProviderFactory = new AutofacServiceProviderFactory(ConfigureContainer);
//var containerBuilder = autofacServiceProviderFactory.CreateBuilder(services);
//containerBuilder.Populate(services);
//containerBuilder.Build();
//return autofacServiceProviderFactory.CreateServiceProvider(containerBuilder);
ContainerBuilder containerBuilder = new ContainerBuilder();
//register engine
containerBuilder.RegisterInstance(this).As <IEngine>().SingleInstance();
//register type finder
containerBuilder.RegisterInstance(typeFinder).As <ITypeFinder>().SingleInstance();
//find dependency registrars provided by other assemblies
System.Collections.Generic.IEnumerable <Type> dependencyRegistrars = typeFinder.FindClassesOfType <IDependencyRegistrar>();
//create and sort instances of dependency registrars
IOrderedEnumerable <IDependencyRegistrar> instances = dependencyRegistrars
//.Where(dependencyRegistrar => PluginManager.FindPlugin(dependencyRegistrar)?.Installed ?? true) //ignore not installed plugins
.Select(dependencyRegistrar => (IDependencyRegistrar)Activator.CreateInstance(dependencyRegistrar))
.OrderBy(dependencyRegistrar => dependencyRegistrar.Order);
//register all provided dependencies
foreach (IDependencyRegistrar dependencyRegistrar in instances)
{
dependencyRegistrar.Register(containerBuilder, config);
}
//populate Autofac container builder with the set of registered service descriptors
containerBuilder.Populate(services);
//create service provider
_serviceProvider = new AutofacServiceProvider(containerBuilder.Build());
return(_serviceProvider);
}