private static void SetupServiceDescriptors(ShellBlueprint blueprint, List <SmartServiceDescriptor> smartServiceDescriptors)
{
foreach (var item in blueprint.DependencyDescribers)
{
var constructor = item.Type.GetTypeInfo().GetConstructors(BindingFlags.Public | BindingFlags.Instance).FirstOrDefault(c => c.GetParameters().Length == 0);
if (constructor == null)
{
throw new SchubertException($@"类型 {item.Type.FullName} 实现了 {nameof(IDependencyDescriber)} 接口，必须提供公共无参构造函数。");
}
IDependencyDescriber d = (IDependencyDescriber)Activator.CreateInstance(item.Type);
foreach (var descriptor in d.Build())
{
smartServiceDescriptors.Add(descriptor);
}
}
}
/// <summary>
/// 获取蓝图中的依赖项和事件。
/// </summary>
private Tuple <IEnumerable <SmartServiceDescriptor>, IEnumerable <EventSubscriptionDescriptor> > BuildDependencies(ShellBlueprint blueprint)
{
List <SmartServiceDescriptor> smartServiceDescriptors = new List <SmartServiceDescriptor>();
smartServiceDescriptors.Add(ServiceDescriber.Instance(blueprint, SmartOptions.Replace));
smartServiceDescriptors.Add(ServiceDescriber.Instance(blueprint.Descriptor, SmartOptions.Replace));
SetupServiceDescriptors(blueprint, smartServiceDescriptors);
List <EventSubscriptionDescriptor> eventSubs = new List <EventSubscriptionDescriptor>();
SetupDependencies(blueprint, smartServiceDescriptors, eventSubs);
return(new Tuple <IEnumerable <SmartServiceDescriptor>, IEnumerable <EventSubscriptionDescriptor> >(smartServiceDescriptors, eventSubs));
}
private ShellBlueprint BuildBlueprint(ShellDescriptor descriptor, IEnumerable <Feature> features, IEnumerable <String> excludeTypes)
{
_logger.WriteInformation($"开始加载蓝图（app: {_appName}）。");
string[] feautureNames = features.Select(f => f.Descriptor.Name).ToArray();
string[] modules = features.Select(f => f.Descriptor.ModuleName).Distinct().ToArray();
var items = new Dictionary <String, List <ShellBlueprintItem> >();
ShellBlueprint blueprint = new ShellBlueprint()
{
Features = feautureNames, Modules = modules
};
foreach (var f in features)
{
if (f.Descriptor.ModuleName.Equals(FrameworkFeatureName))
{
continue;
}
if (!f.ExportedTypes.Any())
{
this._logger.WriteTrace($"跳过 Feature ( Name={f.Descriptor.Name}, Module={f.Descriptor.ModuleName} )，由于没有导出类型。");
continue;
}
this.BeginTrace();
this.AddTraceLine($"加载 Feature ( Name={f.Descriptor.Name}, Module={f.Descriptor.ModuleName} )");
foreach (Type t in f.ExportedTypes)
{
if (!excludeTypes.Contains(t.FullName))
{
foreach (var e in _exporters)
{
if (e.CanExport(t))
{
var item = e.Export(t, f);
if (item != null)
{
var list = items.GetOrAdd(e.Category, c => new List <ShellBlueprintItem>());
list.Add(item);
this.AddTraceLine($"发现 {e.Category}：{t.Name}。");
}
}
}
}
}
this.EndTrace();
}
var saveItems = new Dictionary <String, IEnumerable <ShellBlueprintItem> >(items.Count);
foreach (var kv in items)
{
saveItems.Add(kv.Key, kv.Value.ToArray());
}
//设置蓝图。
blueprint.Descriptor = descriptor;
blueprint.ExportedItems = saveItems;
_logger.WriteInformation($"蓝图加载完成。");
return(blueprint);
}
