rss and rss item and encode

Former-commit-id: 333b5635cc0eb22964403cc78f660e02a830f077

monitor/item.go

@@ -12,7 +12,6 @@ import (
 
 type Item struct {
 	Key string
-	*config.Encodable
 }
 
 const nsLast = "nsLast"
@@ -23,8 +22,7 @@ var forever = time.Duration(time.Hour * 99999)
 
 func NewItem(key string, interval time.Duration) (*Item, error) {
 	i := &Item{
-		Key:       key,
-		Encodable: &config.Encodable{},
+		Key: key,
 	}
 
 	if err := i.setInterval(interval); err != nil {
@@ -124,3 +122,11 @@ func (i *Item) getLast() (time.Time, error) {
 	}
 	return t, nil
 }
+
+func (i *Item) Encode() ([]byte, error) {
+	return config.Encode(i)
+}
+
+func (i *Item) Decode(b []byte) error {
+	return config.Decode(b, i)
+}