//处理定义在类上的扩展器
public static void ExtenderInit <T, TA>(IObjectService objectService, T instance, IDictionary items = null) where TA : ServiceExtenderAttribute
{
var attributes = objectService.AsObjectServiceInternal().CoreAttributes;
if (!attributes.TryGetValue(typeof(TA), out var list))
{
return;
}
if (list == null || list.Count <= 0)
{
return;
}
items = items ?? new Hashtable();
var orderList = list.OrderByDescending(x => x.Priority);
foreach (TA attribute in orderList)
{
var type = attribute?.OwnerType;
if (type != null)
{
var extender = objectService.GetOrCreateObject(type) as IObjectExtender <T>;
extender?.Init(instance, items);
}
}
}
internal static void Init(IObjectService objectService, IHostBuilderInternal builder)
{
if (initialized) //保证只初始化一次
{
return;
}
initialized = true;
var coreAttributes = objectService.AsObjectServiceInternal().CoreAttributes;
if (coreAttributes.TryGetValue(typeof(HostStartupAttribute), out var list))
{
var startupTypes = list.OrderByDescending(x => x.Priority).Select(x => x.OwnerType).ToArray();
foreach (var type in startupTypes)
{
var startup = objectService.GetOrCreateObject(type) as IHostStartup;
startup?.Init(builder);
}
}
}
