implemented api handlers

pkg/db/db.go

@@ -15,6 +15,7 @@ func New(kv cluster.KV) *DB {
 const (
 	ipPrefix   = "/ip/"
 	namePrefix = "/name/"
+	lbPrefix   = "/lb/"
 )
 
 func (db *DB) GetIPs() (ips []string, err error) {
@@ -54,3 +55,31 @@ func (db *DB) GetName(name string) (string, error) {
 	v, err := db.kv.Get(namePrefix + name)
 	return string(v), err
 }
+
+func (db *DB) GetLBs(cl string) (lbs map[string][]byte, err error) {
+	lbs = make(map[string][]byte)
+	if cl != "" {
+		cl = cl + "/"
+	}
+	m, err := db.kv.GetPrefix(lbPrefix + cl)
+	if err == cluster.ErrPrefixNotFound {
+		err = nil
+		return
+	}
+	if err != nil {
+		return
+	}
+	for k, v := range m {
+		lbs[k] = v
+	}
+	return
+}
+func (db *DB) GetLB(name string) ([]byte, error) {
+	return db.kv.Get(lbPrefix + name)
+}
+func (db *DB) SetLB(name string, lb []byte) error {
+	return db.kv.Set(lbPrefix+name, lb)
+}
+func (db *DB) DeleteLB(name string) error {
+	return db.kv.Delete(lbPrefix + name)
+}