// 处理外部调用
private static async Task <string> _process_method_call(string _module_name, string _method_name, string _content)
{
string _resp = "";
// 确认是否能直接调用
foreach (var(_key, _obj) in Singletons.CallerMap)
{
if (!_key.Item1.StartsWith(_module_name))
{
continue;
}
// 获取参数内容
var _method = _key.Item2.GetMethod(_method_name);
if (_method == null)
{
throw new MissingMethodException($"未在模块 {_module_name} 中找到");
}
var _param_infos = _method.GetParameters();
object [] _params = new object [_param_infos?.Length ?? 0];
if (_content?.Length > 0 && _params.Length > 0)
{
JObject _param_obj = JObject.Parse(_content);
for (int i = 0; i < _params.Length; ++i)
{
_params [i] = _param_obj [_param_infos [i].Name].ToObject(_param_infos [i].ParameterType);
}
}
// 调用
try {
var _ret = _method.Invoke(_obj, _params);
if (_method.ReturnType == typeof(Task))
{
await(Task) _ret;
_resp = JsonConvert.SerializeObject(new { result = "success" });
}
else
{
await(Task) _ret;
_ret = _ret.GetType().InvokeMember("Result", BindingFlags.GetProperty, null, _ret, Array.Empty <object> ());
_resp = JsonConvert.SerializeObject(new { result = "success", content = _ret });
}
} catch (Exception ex) {
_resp = JsonConvert.SerializeObject(new { result = "failure", reason = ex.Message });
}
return(_resp);
}
// 转发调用
try {
return(await Singletons.InvokeRemoteService(_module_name, _method_name, _content));
} catch (Exception ex) {
_resp = JsonConvert.SerializeObject(new { result = "failure", reason = ex.Message });
}
return(_resp);
}
// 调用远程函数的中转：将远程请求的结果解析并返回给调用者
private static async Task <object> _invoke_method_impl(string _service_name, string _method_name, Dictionary <string, object> _params, Type _ret_type)
{
string _content = JObject.FromObject(_params).ToString();
var _ret = await Singletons.InvokeRemoteService(_service_name, _method_name, _content);
JObject _o = JObject.Parse(_ret);
if (_o ["result"].ToObject <string> () == "success")
{
if (_ret_type == typeof(void) || _ret_type == typeof(Task))
{
return(null);
}
else if (_ret_type?.BaseType == typeof(Task))
{
return(_o ["content"].ToObject(_ret_type.GenericTypeArguments [0]));
}
else
{
throw new MethodAccessException("返回类型必须基于Task");
}
}
throw new MethodAccessException(_o ["reason"].ToObject <string> ());
}