gokins/core/convert.go
2020-09-30 15:58:22 +08:00

549 lines
12 KiB
Go

package core
import (
"encoding/json"
"errors"
"fmt"
"reflect"
"strconv"
"strings"
ruisUtil "github.com/mgr9525/go-ruisutil"
"git.code.oa.com/cloud_energy_studio/util/logger"
"google.golang.org/protobuf/proto"
)
// Maps2Struct 转换
func Maps2Struct(mp *ruisUtil.Map, dist interface{}) error {
return Map2Struct(mp.Map(), dist)
}
// Map2Struct 转换
func Map2Struct(mp map[string]interface{}, dist interface{}) (rterr error) {
defer func() {
if errs := recover(); errs != nil {
rterr = errors.New(fmt.Sprintf("%v", errs))
}
}()
if mp == nil || dist == nil {
return errors.New("map/dist is nil")
}
tf := reflect.TypeOf(dist)
vf := reflect.ValueOf(dist)
if vf.IsNil() {
return errors.New("dist is nil")
}
if tf.Kind() != reflect.Ptr {
return errors.New("dist is not pointer")
}
tf = tf.Elem()
vf = vf.Elem()
if tf.Kind() != reflect.Struct {
return errors.New("dist is not struct")
}
for i := 0; i < tf.NumField(); i++ {
tfid := tf.Field(i)
v, ok := mp[tfid.Name]
if !ok {
name := strings.Split(tfid.Tag.Get("json"), ",")[0]
if name == "" {
continue
}
v, ok = mp[name]
if !ok {
continue
}
}
tfd := tfid.Type
vfd := vf.FieldByIndex(tfid.Index)
if !vfd.CanSet() {
continue
}
if reflect.TypeOf(v).AssignableTo(tfd) {
vfd.Set(reflect.ValueOf(v))
continue
}
tfdc := tfd
vfdc := vfd
if tfd.Kind() == reflect.Ptr {
tfdc = tfd.Elem()
if vfd.Elem().Kind() == reflect.Invalid {
nv := reflect.New(tfdc)
vfd.Set(nv)
}
vfdc = vfd.Elem()
}
switch tfdc.Kind() {
case reflect.String:
vfdc.SetString(getString(v))
case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
vfdc.SetInt(getInt(v))
case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64:
vfdc.SetUint(getUint(v))
case reflect.Float32, reflect.Float64:
vfdc.SetFloat(getFloat(v))
case reflect.Bool:
vfdc.SetBool(getBool(v))
case reflect.Struct:
mpd, ok := v.(map[string]interface{})
if ok {
if err := Map2Struct(mpd, vfdc.Addr().Interface()); err != nil {
println(err.Error())
}
}
case reflect.Slice:
ls, err := Obj2Slice(v, tfdc)
if err != nil {
println(err.Error())
}
vfd.Set(ls)
default:
setValue(vfdc, v)
}
}
return nil
}
// pbStruct2Map p为protobuf生成的结构体指针
func pbStruct2Map(p interface{}) map[string]interface{} {
res := map[string]interface{}{}
if p == nil {
return res
}
t := reflect.TypeOf(p)
v := reflect.ValueOf(p)
if t.Kind() == reflect.Ptr {
if v.Elem().Kind() == reflect.Invalid {
return res
}
v = reflect.Indirect(v)
t = t.Elem()
}
for i := 0; i < t.NumField(); i++ {
tag := t.Field(i).Tag.Get("json")
if tag == "" || tag == "-" {
continue
}
tags := strings.Split(tag, ",")
if len(tags) == 0 {
continue
}
fValue := v.Field(i)
fType := t.Field(i).Type.Kind()
if fType == reflect.Ptr {
if fValue.Kind() != reflect.Invalid {
res[tags[0]] = pbStruct2Map(fValue.Interface())
continue
}
} else if fType == reflect.Slice {
lenth := fValue.Len()
if lenth > 0 {
out := make([]interface{}, lenth)
for j := 0; j < lenth; j++ {
tmpv := fValue.Index(j).Interface()
if fValue.Index(j).Kind() == reflect.Ptr {
out[j] = pbStruct2Map(tmpv)
} else {
out[j] = tmpv
}
}
res[tags[0]] = out
} else {
res[tags[0]] = []interface{}{}
}
continue
}
res[tags[0]] = fValue.Interface()
}
return res
}
// Struct2Struct 转换
func Struct2Struct(src interface{}, dist interface{}) (rterr error) {
dugName := ""
defer func() {
if errs := recover(); errs != nil {
logger.Errorf("Struct2Struct dugName=%s, panic:%+v", dugName, errs)
rterr = errors.New(fmt.Sprintf("dugName=%s, errs=%+v", dugName, errs))
}
}()
if src == nil {
return nil
}
if dist == nil {
return errors.New("dist is nil")
}
tf := reflect.TypeOf(dist)
vf := reflect.ValueOf(dist)
if vf.IsNil() {
return errors.New("dist is nil")
}
if tf.Kind() != reflect.Ptr {
return errors.New("dist is not pointer")
}
tf = tf.Elem()
vf = vf.Elem()
if tf.Kind() != reflect.Struct {
return errors.New("dist is not struct")
}
tf1 := reflect.TypeOf(src)
vf1 := reflect.ValueOf(src)
if vf1.IsNil() {
return nil
}
if tf1.Kind() == reflect.Ptr {
tf1 = tf1.Elem()
vf1 = vf1.Elem()
}
if tf1.Kind() != reflect.Struct {
return errors.New("src is not struct")
}
for i := 0; i < tf.NumField(); i++ {
tfid := tf.Field(i)
tf1fd, ok := tf1.FieldByName(tfid.Name)
if !ok {
lws := strings.ToLower(tfid.Name)
tags := strings.Split(tfid.Tag.Get("conv"), ",")
if lws == "id" {
tags = []string{"ID", "Id", "id"}
}
if strings.Contains(lws, "id") {
tags = append(tags, strings.ReplaceAll(tfid.Name, "Id", "ID"))
tags = append(tags, strings.ReplaceAll(tfid.Name, "ID", "Id"))
}
for _, v := range tags {
if v == "" {
continue
}
tf1fd, ok = tf1.FieldByName(v)
if ok {
break
}
}
if !ok {
continue
}
}
dugName = tf1fd.Name
vf1fd := vf1.FieldByIndex(tf1fd.Index)
if !vf1fd.CanInterface() {
continue
}
v := vf1fd.Interface()
tfd := tfid.Type
vfd := vf.FieldByIndex(tfid.Index)
if !vfd.CanSet() {
continue
}
if tf1fd.Type.AssignableTo(tfd) {
vfd.Set(vf1fd)
continue
}
tfdc := tfd
vfdc := vfd
if tfd.Kind() == reflect.Ptr {
tfdc = tfd.Elem()
if vf1fd.Elem().Kind() == reflect.Invalid {
continue
}
if vfd.Elem().Kind() == reflect.Invalid {
nv := reflect.New(tfdc)
vfd.Set(nv)
}
vfdc = vfd.Elem()
}
switch vfdc.Kind() {
case reflect.String:
vfdc.SetString(getString(v))
case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
vfdc.SetInt(getInt(v))
case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64:
vfdc.SetUint(getUint(v))
case reflect.Float32, reflect.Float64:
vfdc.SetFloat(getFloat(v))
case reflect.Bool:
vfdc.SetBool(getBool(v))
case reflect.Struct:
if err := Struct2Struct(v, vfdc.Addr().Interface()); err != nil {
println(err.Error())
}
case reflect.Slice:
ls, err := Obj2Slice(v, tfdc)
if err != nil {
println(err.Error())
}
vfdc.Set(ls)
default:
setValue(vfd, v)
}
}
return nil
}
func setValue(vf reflect.Value, v interface{}) {
defer func() {
if errs := recover(); errs != nil {
logger.Errorf("setValue name:%s,err=%s", vf.String(), errs)
}
}()
vf.Set(reflect.ValueOf(v))
}
func getBool(v interface{}) bool {
vf := reflect.ValueOf(v)
switch vf.Kind() {
case reflect.Bool:
return v.(bool)
case reflect.String:
return v.(string) == "true"
}
return false
}
func getString(v interface{}) string {
vf := reflect.ValueOf(v)
switch vf.Kind() {
case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64,
reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64:
return fmt.Sprintf("%d", v)
case reflect.Float32, reflect.Float64:
return fmt.Sprintf("%f", v)
}
return fmt.Sprintf("%v", v)
}
func getInt(v interface{}) int64 {
vf := reflect.ValueOf(v)
switch vf.Kind() {
case reflect.Int:
return int64(v.(int))
case reflect.Int8:
return int64(v.(int8))
case reflect.Int16:
return int64(v.(int16))
case reflect.Int32:
return int64(v.(int32))
case reflect.Int64:
return v.(int64)
case reflect.Uint:
return int64(v.(uint))
case reflect.Uint8:
return int64(v.(uint8))
case reflect.Uint16:
return int64(v.(uint16))
case reflect.Uint32:
return int64(v.(uint32))
case reflect.Uint64:
return int64(v.(uint64))
case reflect.Float32:
return int64(v.(float32))
case reflect.Float64:
return int64(v.(float64))
case reflect.String:
vc, _ := strconv.ParseInt(v.(string), 10, 64)
return vc
}
return 0
}
func getUint(v interface{}) uint64 {
vf := reflect.ValueOf(v)
switch vf.Kind() {
case reflect.Int:
return uint64(v.(int))
case reflect.Int8:
return uint64(v.(int8))
case reflect.Int16:
return uint64(v.(int16))
case reflect.Int32:
return uint64(v.(int32))
case reflect.Int64:
return uint64(v.(int64))
case reflect.Uint:
return uint64(v.(uint))
case reflect.Uint8:
return uint64(v.(uint8))
case reflect.Uint16:
return uint64(v.(uint16))
case reflect.Uint32:
return uint64(v.(uint32))
case reflect.Uint64:
return v.(uint64)
case reflect.Float32:
return uint64(v.(float32))
case reflect.Float64:
return uint64(v.(float64))
case reflect.String:
vc, _ := strconv.ParseUint(v.(string), 10, 64)
return vc
}
return 0
}
func getFloat(v interface{}) float64 {
vf := reflect.ValueOf(v)
switch vf.Kind() {
case reflect.Int:
return float64(v.(int))
case reflect.Int8:
return float64(v.(int8))
case reflect.Int16:
return float64(v.(int16))
case reflect.Int32:
return float64(v.(int32))
case reflect.Int64:
return float64(v.(int64))
case reflect.Uint:
return float64(v.(uint))
case reflect.Uint8:
return float64(v.(uint8))
case reflect.Uint16:
return float64(v.(uint16))
case reflect.Uint32:
return float64(v.(uint32))
case reflect.Uint64:
return float64(v.(uint64))
case reflect.Float32:
return float64(v.(float32))
case reflect.Float64:
return v.(float64)
case reflect.String:
vc, _ := strconv.ParseFloat(v.(string), 64)
return vc
}
return 0
}
// Bytes2Struct 转换
func Bytes2Struct(bts []byte, dist interface{}) error {
mp := make(map[string]interface{})
err := json.Unmarshal(bts, &mp)
if err != nil {
return err
}
return Map2Struct(mp, dist)
}
// Obj2Slice 转换
func Obj2Slice(obj interface{}, dtf reflect.Type) (ret reflect.Value, rterr error) {
defer func() {
if errs := recover(); errs != nil {
logger.Errorf("Obj2Slice dtfName=%s, panic:%+v", dtf.Name(), errs)
rterr = errors.New(fmt.Sprintf("dtfName=%s, errs=%+v", dtf.Name(), errs))
}
}()
objs := reflect.ValueOf(obj)
if objs.Kind() != reflect.Slice {
return reflect.Value{}, errors.New("objs is not slice")
}
dist := reflect.MakeSlice(dtf, 0, 0)
dtf1 := dtf.Elem()
dtf2 := dtf1
if dtf1.Kind() == reflect.Ptr {
dtf2 = dtf1.Elem()
}
for i := 0; i < objs.Len(); i++ {
valf := objs.Index(i)
val := valf.Interface()
nv := reflect.New(dtf2)
tf := reflect.TypeOf(val)
vf := reflect.ValueOf(val)
if tf.Kind() == reflect.Ptr {
tf = tf.Elem()
if vf.Elem().Kind() == reflect.Invalid {
continue
}
vf = vf.Elem()
}
switch dtf2.Kind() {
case reflect.String:
nv = nv.Elem()
nv.SetString(getString(val))
case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
nv = nv.Elem()
nv.SetInt(getInt(val))
case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64:
nv = nv.Elem()
nv.SetUint(getUint(val))
case reflect.Float32, reflect.Float64:
nv = nv.Elem()
nv.SetFloat(getFloat(val))
case reflect.Bool:
nv = nv.Elem()
nv.SetBool(getBool(val))
case reflect.Struct:
mpd, ok := val.(map[string]interface{})
if ok {
if err := Map2Struct(mpd, nv.Interface()); err != nil {
println(err.Error())
}
} else {
if err := Struct2Struct(val, nv.Interface()); err != nil {
println(err.Error())
}
}
case reflect.Slice:
ls, err := Obj2Slice(val, dtf2)
if err != nil {
println(err.Error())
}
nv.Set(ls)
default:
nv = valf
}
dist = reflect.Append(dist, nv)
}
return dist, nil
}
/*// Obj2Slice 转换
func Obj2Slice(obj interface{}, dist interface{}) error {
bts, err := json.Marshal(obj)
if err != nil {
return err
}
err = json.Unmarshal(bts, dist)
if err != nil {
return err
}
return nil
}*/
// PutProtoMsgData 填充rsp.Data字段
func PutProtoMsgData(rsp proto.Message) {
defer func() {
if errs := recover(); errs != nil {
logger.Errorf("ProtoMsgData ,err=%s", errs)
}
}()
tf := reflect.TypeOf(rsp)
vf := reflect.ValueOf(rsp)
if tf.Kind() != reflect.Ptr {
return
}
tf = tf.Elem()
vf = vf.Elem()
if vf.Kind() == reflect.Invalid {
return
}
tfd, ok := tf.FieldByName("Data")
if !ok || tfd.Type.Kind() != reflect.Ptr {
return
}
vfd := vf.FieldByIndex(tfd.Index)
if vfd.Elem().Kind() != reflect.Invalid {
return
}
vfd.Set(reflect.New(tfd.Type.Elem()))
}