1 // Copyright (c) 2012-2016 The Revel Framework Authors, All rights reserved.
2 // Revel Framework source code and usage is governed by a MIT style
3 // license that can be found in the LICENSE file.
14 // Serialize transforms the given value into bytes following these rules:
15 // - If value is a byte array, it is returned as-is.
16 // - If value is an int or uint type, it is returned as the ASCII representation
17 // - Else, encoding/gob is used to serialize
18 func Serialize(value interface{}) ([]byte, error) {
19 if data, ok := value.([]byte); ok {
23 switch v := reflect.ValueOf(value); v.Kind() {
24 case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
25 return []byte(strconv.FormatInt(v.Int(), 10)), nil
26 case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64:
27 return []byte(strconv.FormatUint(v.Uint(), 10)), nil
31 encoder := gob.NewEncoder(&b)
32 if err := encoder.Encode(value); err != nil {
33 cacheLog.Error("Serialize: gob encoding failed", "value", value, "error", err)
39 // Deserialize transforms bytes produced by Serialize back into a Go object,
40 // storing it into "ptr", which must be a pointer to the value type.
41 func Deserialize(byt []byte, ptr interface{}) (err error) {
42 if data, ok := ptr.(*[]byte); ok {
47 if v := reflect.ValueOf(ptr); v.Kind() == reflect.Ptr {
48 switch p := v.Elem(); p.Kind() {
49 case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
51 i, err = strconv.ParseInt(string(byt), 10, 64)
53 cacheLog.Error("Deserialize: failed to parse int", "value", string(byt), "error", err)
59 case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64:
61 i, err = strconv.ParseUint(string(byt), 10, 64)
63 cacheLog.Error("Deserialize: failed to parse uint", "value", string(byt), "error", err)
71 b := bytes.NewBuffer(byt)
72 decoder := gob.NewDecoder(b)
73 if err = decoder.Decode(ptr); err != nil {
74 cacheLog.Error("Deserialize: glob decoding failed", "error", err)