/// <summary>
/// Builds the required services and an <see cref="IConsole"/> which hosts a web application.
/// </summary>
public IConsole Build()
{
if (_consoleBuilt)
{
throw new InvalidOperationException("This console application has already been built.");
}
_consoleBuilt = true;
var services = BuildCommonServices();
var applicationServices = services.Clone();
var consoleServiceProvider = GetProviderFromFactory(services);
var service = new ConsoleApplication(applicationServices, consoleServiceProvider, _config);
try
{
service.Initialize();
return(service);
}
catch
{
// Dispose the host if there's a failure to initialize, this should clean up
// will dispose services that were constructed until the exception was thrown
service.Dispose();
throw;
}
IServiceProvider GetProviderFromFactory(IServiceCollection collection)
{
var provider = collection.BuildServiceProvider();
var factory = provider.GetService <IServiceProviderFactory <IServiceCollection> >();
if (factory != null)
{
using (provider)
{
return(factory.CreateServiceProvider(factory.CreateBuilder(collection)));
}
}
return(provider);
}
}
public override void Dispose()
{
ApplicationContext.DisposeIfDisposable();
_application.Dispose();
}