/// <summary>
/// 提取类型中的Api，注册服务，添加拦截
/// </summary>
/// <param name="p_type"></param>
/// <param name="p_apiAttr"></param>
/// <param name="p_builder"></param>
static void ExtractApi(Type p_type, ApiAttribute p_apiAttr, ContainerBuilder p_builder)
{
// 分组列表
List <string> grpMethods = null;
if (p_apiAttr != null)
{
string grpName = string.IsNullOrEmpty(p_apiAttr.GroupName) ? "API" : p_apiAttr.GroupName;
if (GroupMethods.TryGetValue(grpName, out List <string> ls))
{
grpMethods = ls;
}
else
{
grpMethods = new List <string>();
GroupMethods[grpName] = grpMethods;
}
}
ApiCallMode callMode;
var clsAuth = p_type.GetCustomAttribute <AuthAttribute>(false);
MethodInfo[] methods = p_type.GetMethods(BindingFlags.Public | BindingFlags.Instance | BindingFlags.DeclaredOnly);
foreach (MethodInfo mi in methods)
{
// 是否为流模式方法，流模式返回值始终为Task
callMode = ApiCallMode.Unary;
if (mi.ReturnType == typeof(Task))
{
ParameterInfo[] pis = mi.GetParameters();
if (pis.Length > 0)
{
if (pis[pis.Length - 1].ParameterType == typeof(RequestReader))
{
callMode = ApiCallMode.ClientStream;
}
else if (pis.Length > 1 &&
pis[pis.Length - 2].ParameterType == typeof(RequestReader) &&
pis[pis.Length - 1].ParameterType == typeof(ResponseWriter))
{
callMode = ApiCallMode.DuplexStream;
}
else if (pis[pis.Length - 1].ParameterType == typeof(ResponseWriter))
{
callMode = ApiCallMode.ServerStream;
}
}
}
// 是否启用事务
bool isTran = mi.GetCustomAttribute <TransactionAttribute>(false) != null;
var methodAuth = mi.GetCustomAttribute <AuthAttribute>(false);
string name = $"{p_type.Name}.{mi.Name}";
Methods[name] = new ApiMethod(mi, callMode, methodAuth ?? clsAuth, isTran);
if (grpMethods != null)
{
grpMethods.Add(name);
}
}
if (p_apiAttr != null &&
p_apiAttr.Interceptors != null &&
p_apiAttr.Interceptors.Length > 0)
{
// 将拦截器添加到容器
p_builder.RegisterTypes(p_apiAttr.Interceptors);
// 注册服务，添加拦截
p_builder
.RegisterType(p_type)
.InstancePerDependency()
.EnableClassInterceptors()
.InterceptedBy(p_apiAttr.Interceptors);
}
else
{
// 注册服务
p_builder.RegisterType(p_type);
}
}
/// <summary>
/// 注入服务，提取程序集中的Api列表、事件处理类型、服务列表、可序列化类型列表，注册服务，添加拦截
/// </summary>
/// <param name="p_services"></param>
/// <returns></returns>
public static IServiceProvider ConfigureServices(IServiceCollection p_services)
{
var builder = new ContainerBuilder();
builder.Populate(p_services);
//// 提取有用类型，程序集包括Dt.Core、微服务、插件(以.Addin.dll结尾)
//List<Assembly> asms = new List<Assembly> { Kit.Stub.GetType().Assembly, typeof(Silo).Assembly };
//asms.AddRange(Directory
// .EnumerateFiles(Path.GetDirectoryName(typeof(Silo).Assembly.Location), "*.Addin.dll", SearchOption.TopDirectoryOnly)
// .Select(AssemblyLoadContext.Default.LoadFromAssemblyPath));
// 提取微服务和Dt.Core程序集
var types = Kit.Stub.GetType().Assembly.GetTypes()
.Concat(typeof(Silo).Assembly.GetTypes())
.Where(type => type != null && type.IsClass && type.IsPublic && !type.IsAbstract);
foreach (Type type in types)
{
// 提取Api
ApiAttribute rpcAttr = type.GetCustomAttribute <ApiAttribute>(false);
if (rpcAttr != null)
{
ExtractApi(type, rpcAttr, builder);
continue;
}
// 注册事件处理
if (IsEventHandler(type, builder))
{
continue;
}
// 注册服务，支持继承的SvcAttribute
SvcAttribute svcAttr = type.GetCustomAttribute <SvcAttribute>(true);
if (svcAttr != null)
{
var itps = type.GetInterfaces();
if (itps.Length > 0)
{
// 注册接口类型
builder
.RegisterType(type)
.As(type)
.As(itps)
.ConfigureLifecycle(svcAttr.Lifetime, null);
}
else
{
builder
.RegisterType(type)
.ConfigureLifecycle(svcAttr.Lifetime, null);
}
continue;
}
// 实体类型字典
if (type.IsSubclassOf(typeof(Entity)))
{
var tbl = type.GetCustomAttribute <TblAttribute>(false);
if (tbl != null && !string.IsNullOrEmpty(tbl.Name))
{
_entityDict[tbl.Name.ToLower()] = type;
}
}
// 自定义json序列化对象
JsonObjAttribute serAttr = type.GetCustomAttribute <JsonObjAttribute>(false);
if (serAttr != null)
{
SerializeTypeAlias.Add(serAttr.Alias, type);
}
}
// 内部服务管理Api
ExtractApi(typeof(Admin), null, builder);
Log.Information("注入服务成功");
return(new AutofacServiceProvider(builder.Build()));
}