使用KV存储实现指标统计

internal/metrics/task_kv_objects.go

@@ -0,0 +1,24 @@
+// Copyright 2024 GoEdge CDN goedge.cdn@gmail.com. All rights reserved. Official site: https://goedge.cn .
+
+package metrics
+
+import (
+	"encoding/json"
+	"errors"
+)
+
+type ItemEncoder[T interface{ *Stat }] struct {
+}
+
+func (this *ItemEncoder[T]) Encode(value T) ([]byte, error) {
+	return json.Marshal(value)
+}
+
+func (this *ItemEncoder[T]) EncodeField(value T, fieldName string) ([]byte, error) {
+	return nil, errors.New("invalid field name '" + fieldName + "'")
+}
+
+func (this *ItemEncoder[T]) Decode(valueBytes []byte) (value T, err error) {
+	err = json.Unmarshal(valueBytes, &value)
+	return
+}