feat: add config slice map support (#1538)

feat: add config slice map support

config/value.go

@@ -24,6 +24,8 @@ type Value interface {
 	Float() (float64, error)
 	String() (string, error)
 	Duration() (time.Duration, error)
+	Slice() ([]Value, error)
+	Map() (map[string]Value, error)
 	Scan(interface{}) error
 	Load() interface{}
 	Store(interface{})
@@ -59,6 +61,32 @@ func (v *atomicValue) Int() (int64, error) {
 	return 0, fmt.Errorf("type assert to %v failed", reflect.TypeOf(v.Load()))
 }
 
+func (v *atomicValue) Slice() ([]Value, error) {
+	if vals, ok := v.Load().([]interface{}); ok {
+		var slices []Value
+		for _, val := range vals {
+			a := &atomicValue{}
+			a.Store(val)
+			slices = append(slices, a)
+		}
+		return slices, nil
+	}
+	return nil, fmt.Errorf("type assert to %v failed", reflect.TypeOf(v.Load()))
+}
+
+func (v *atomicValue) Map() (map[string]Value, error) {
+	if vals, ok := v.Load().(map[string]interface{}); ok {
+		m := make(map[string]Value)
+		for key, val := range vals {
+			a := &atomicValue{}
+			a.Store(val)
+			m[key] = a
+		}
+		return m, nil
+	}
+	return nil, fmt.Errorf("type assert to %v failed", reflect.TypeOf(v.Load()))
+}
+
 func (v *atomicValue) Float() (float64, error) {
 	switch val := v.Load().(type) {
 	case float64:
@@ -122,3 +150,5 @@ func (v errValue) String() (string, error)          { return "", v.err }
 func (v errValue) Scan(interface{}) error           { return v.err }
 func (v errValue) Load() interface{}                { return nil }
 func (v errValue) Store(interface{})                {}
+func (v errValue) Slice() ([]Value, error)          { return nil, v.err }
+func (v errValue) Map() (map[string]Value, error)   { return nil, v.err }

config/value_test.go

@@ -120,6 +120,40 @@ func Test_atomicValue_Duration(t *testing.T) {
 	}
 }
 
+func Test_atomicValue_Slice(t *testing.T) {
+	vlist := []interface{}{int64(5)}
+	v := atomicValue{}
+	v.Store(vlist)
+	slices, err := v.Slice()
+	assert.NoError(t, err)
+	for _, v := range slices {
+		b, err := v.Duration()
+		assert.NoError(t, err)
+		assert.Equal(t, time.Duration(5), b)
+	}
+}
+
+func Test_atomicValue_Map(t *testing.T) {
+	vlist := make(map[string]interface{})
+	vlist["5"] = int64(5)
+	vlist["text"] = "text"
+	v := atomicValue{}
+	v.Store(vlist)
+	m, err := v.Map()
+	assert.NoError(t, err)
+	for k, v := range m {
+		if k == "5" {
+			b, err := v.Duration()
+			assert.NoError(t, err)
+			assert.Equal(t, time.Duration(5), b)
+		} else {
+			b, err := v.String()
+			assert.NoError(t, err)
+			assert.Equal(t, "text", b)
+		}
+	}
+}
+
 func Test_atomicValue_Scan(t *testing.T) {
 	var err error
 	v := atomicValue{}