Initial commit

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

common/cachev2/util.go

@@ -0,0 +1,76 @@
+package cachev2
+
+import (
+	"encoding/json"
+	"fmt"
+	"reflect"
+	"runtime"
+)
+
+// funcInvoke 函数调用
+func funcInvoke(fun interface{}, args ...interface{}) (data interface{}, err error) {
+	ft := reflect.TypeOf(fun)
+	fv := reflect.ValueOf(fun)
+	if ft.Kind() != reflect.Func {
+		return nil, fmt.Errorf("CACHE:不是一个有效的函数")
+	}
+	funcArgsNum := ft.NumIn()
+	if len(args) != funcArgsNum {
+		return nil, fmt.Errorf("CACHE:参数未对齐错误，方法名：%s，方法参数数：%d，传入参数数：%d", runtime.FuncForPC(fv.Pointer()).Name(), funcArgsNum, len(args))
+	}
+	funcResNum := ft.NumOut()
+	if funcResNum < 1 {
+		return nil, fmt.Errorf("CACHE:没有返回值的无效调用，方法名：%s", runtime.FuncForPC(fv.Pointer()).Name())
+	}
+
+	// 调用函数
+	var funRes []reflect.Value
+	if funcArgsNum == 0 {
+		funRes = fv.Call(nil)
+	} else {
+		argsV := make([]reflect.Value, 0, len(args))
+		for _, arg := range args {
+			argsV = append(argsV, reflect.ValueOf(arg))
+		}
+
+		funRes = fv.Call(argsV)
+	}
+
+	data = funRes[0].Interface()
+	for _, ret := range funRes {
+		if ret.Type().String() == "error" {
+			e, ok := ret.Interface().(error)
+			if ok {
+				err = e
+			}
+			break
+		}
+	}
+
+	return
+}
+
+// serialJson 序列化为JSON
+func serialJson(m interface{}) (string, error) {
+	b, err := json.Marshal(m)
+	if err != nil {
+		return "", err
+	}
+
+	return string(b), nil
+}
+
+// unSerialJson 从JSON字符串反序列化
+func unSerialJson(str string, resObj interface{}) (m interface{}, err error) {
+	if resObj == nil {
+		err = json.Unmarshal([]byte(str), &m)
+	} else {
+		err = json.Unmarshal([]byte(str), &resObj)
+		m = resObj
+	}
+	if err != nil {
+		return nil, err
+	}
+
+	return
+}