1.4.5.2

EdgeAPI/internal/utils/json.go

@@ -0,0 +1,74 @@
+// Copyright 2023 Liuxiangchao iwind.liu@gmail.com. All rights reserved. Official site: https://goedge.cn .
+
+package utils
+
+import (
+	"encoding/json"
+	"errors"
+	"reflect"
+)
+
+// JSONClone 使用JSON协议克隆对象
+func JSONClone[T any](ptr T) (newPtr T, err error) {
+	var ptrType = reflect.TypeOf(ptr)
+	var kind = ptrType.Kind()
+	if kind != reflect.Ptr && kind != reflect.Slice {
+		err = errors.New("JSONClone: input must be a ptr or slice")
+		return
+	}
+	var jsonData []byte
+	jsonData, err = json.Marshal(ptr)
+	if err != nil {
+		return ptr, errors.New("JSONClone: marshal failed: " + err.Error())
+	}
+
+	var newValue any
+	switch kind {
+	case reflect.Ptr:
+		newValue = reflect.New(ptrType.Elem()).Interface()
+	case reflect.Slice:
+		newValue = reflect.New(reflect.SliceOf(ptrType.Elem())).Interface()
+	default:
+		return ptr, errors.New("JSONClone: unknown data type")
+	}
+	err = json.Unmarshal(jsonData, newValue)
+	if err != nil {
+		err = errors.New("JSONClone: unmarshal failed: " + err.Error())
+		return
+	}
+
+	if kind == reflect.Slice {
+		newValue = reflect.Indirect(reflect.ValueOf(newValue)).Interface()
+	}
+
+	return newValue.(T), nil
+}
+
+// JSONDecodeConfig 解码并重新编码
+// 是为了去除原有JSON中不需要的数据
+func JSONDecodeConfig(data []byte, ptr any) (encodeJSON []byte, err error) {
+	err = json.Unmarshal(data, ptr)
+	if err != nil {
+		return
+	}
+
+	encodeJSON, err = json.Marshal(ptr)
+	if err != nil {
+		return
+	}
+
+	// validate config
+	if ptr != nil {
+		config, ok := ptr.(interface {
+			Init() error
+		})
+		if ok {
+			initErr := config.Init()
+			if initErr != nil {
+				err = errors.New("validate config failed: " + initErr.Error())
+			}
+		}
+	}
+
+	return
+}