baseapi/utils/typeconv.go

package utils

import (
	"bytes"
	"encoding/json"
	"fmt"
	"io/ioutil"
	"net/http"
	"net/url"
	"reflect"
	"strconv"
	"strings"
	"time"

	"git.rosy.net.cn/baseapi"
)

var (
	DefaultTimeValue = Str2Time("1970-01-01 00:00:00")
)

func GetConcretValue(value reflect.Value) reflect.Value {
	for {
		if value.Kind() == reflect.Interface || value.Kind() == reflect.Ptr {
			value = value.Elem()
		} else {
			break
		}
	}
	return value
}

func UnmarshalUseNumber(data []byte, result interface{}) error {
	d := json.NewDecoder(bytes.NewReader(data))
	d.UseNumber()
	err := d.Decode(result)
	if err != nil {
		baseapi.SugarLogger.Errorf("decode data:%v, error:%v", string(data), err)
	}
	return err
}

func MustMarshal(obj interface{}) []byte {
	byteArr, err := json.Marshal(obj)
	if err != nil {
		panic(fmt.Sprintf("err when Marshal obj:%v with error:%v", obj, err))
	}
	return byteArr
}

func MustInterface2Int64(data interface{}) int64 {
	dataNumber, ok := data.(json.Number)
	if !ok {
		panic(fmt.Sprintf("error when cast:%v to int64", data))
	}
	retVal, err := dataNumber.Int64()
	if err != nil {
		panic(err.Error())
	}
	return retVal
}

func Interface2Int64WithDefault(data interface{}, defValue int64) int64 {
	if data == nil {
		return defValue
	}
	return MustInterface2Int64(data)
}

func Interface2DirectIntWithDefault(data interface{}, defValue int) int {
	if data == nil {
		return defValue
	}
	return data.(int)
}

func MustInterface2Float64(data interface{}) float64 {
	dataNumber, ok := data.(json.Number)
	if !ok {
		panic(fmt.Sprintf("error when convert:%v", data))
	}
	retVal, err := dataNumber.Float64()
	if err != nil {
		panic(err.Error())
	}
	return retVal
}

func Interface2FloatWithDefault(data interface{}, defValue float64) (retVal float64) {
	if data == nil {
		return defValue
	}
	return MustInterface2Float64(data)
}

func Interface2String(data interface{}) string {
	if data == nil {
		return ""
	}
	return data.(string)
}

func Interface2Int64List(data interface{}) []int64 {
	if data == nil {
		return nil
	}
	list := data.([]interface{})
	retVal := make([]int64, len(list))
	for k, v := range list {
		retVal[k] = MustInterface2Int64(v)
	}
	return retVal
}

func Interface2StringList(data interface{}) []string {
	if data == nil {
		return nil
	}
	list := data.([]interface{})
	retVal := make([]string, len(list))
	for k, v := range list {
		retVal[k] = Interface2String(v)
	}
	return retVal
}

func Interface2Slice(value interface{}) (retVal []interface{}) {
	typeInfo := reflect.TypeOf(value)
	if typeInfo.Kind() != reflect.Slice {
		panic("list must be slice type!")
	}
	if value != nil {
		valueInfo := reflect.ValueOf(value)
		retVal = make([]interface{}, valueInfo.Len())
		for i := 0; i < valueInfo.Len(); i++ {
			retVal[i] = valueInfo.Index(i).Interface()
		}
	}
	return retVal
}

func Slice2MapSlice(data []interface{}) []map[string]interface{} {
	retVal := make([]map[string]interface{}, len(data))
	for k, v := range data {
		retVal[k] = v.(map[string]interface{})
	}
	return retVal
}

//
func Bool2String(value bool) string {
	if value {
		return "true"
	}
	return "false"
}

func Str2Int64WithDefault(str string, defValue int64) int64 {
	retVal, err := strconv.ParseInt(str, 10, 64)
	if err != nil {
		return defValue
	}
	return retVal
}

func Str2Int64(str string) int64 {
	retVal, err := strconv.ParseInt(str, 10, 64)
	if err != nil {
		baseapi.SugarLogger.Errorf("error when convert %s to int64", str)
	}
	return retVal
}

func Str2Float64WithDefault(str string, defValue float64) float64 {
	retVal, err := strconv.ParseFloat(str, 64)
	if err != nil {
		retVal = defValue
	}
	return retVal
}

func Str2Float64(str string) float64 {
	retVal, err := strconv.ParseFloat(str, 64)
	if err != nil {
		baseapi.SugarLogger.Errorf("error when convert %s to float64", str)
	}
	return retVal
}

func Int64ToStr(value int64) string {
	return strconv.FormatInt(value, 10)
}

func Int2Str(value int) string {
	return strconv.Itoa(value)
}

// timestamp is in second
func Timestamp2Str(timestamp int64) string {
	return Time2Str(Timestamp2Time(timestamp))
}

func Timestamp2Time(timestamp int64) time.Time {
	const normalTimestamp = 1533709322
	if timestamp > normalTimestamp*100 { // 传成毫秒了
		baseapi.SugarLogger.Errorf("Timestamp2Time wrong timestamp:%d", timestamp)
		timestamp = timestamp / 1000
	}
	return time.Unix(timestamp, 0)
}

func Time2Str(t time.Time) string {
	return t.Format("2006-01-02 15:04:05")
}

func Str2Time(timeStr string) time.Time {
	timeStr = strings.Replace(timeStr, "T", " ", 1)
	if strings.Index(timeStr, " ") == -1 {
		timeStr += " 00:00:00"
	}
	retVal, err := time.ParseInLocation("2006-1-2 15:4:5", timeStr, time.Local)
	if err != nil {
		baseapi.SugarLogger.Errorf("time.ParseInLocation failed, timeStr:%v, error:%v", timeStr, err)
	}
	return retVal
}

func Str2TimeWithDefault(timeStr string, defValue time.Time) time.Time {
	timeStr = strings.Replace(timeStr, "T", " ", 1)
	retVal, err := time.ParseInLocation("2006-1-2 15:4:5", timeStr, time.Local)
	if err != nil {
		return defValue
	}
	return retVal
}

func HTTPResponse2Json(response *http.Response) (map[string]interface{}, error) {
	var jsonResult map[string]interface{}
	bodyData, err := ioutil.ReadAll(response.Body)
	if err != nil {
		baseapi.SugarLogger.Errorf("ioutil.ReadAll error:%v, response:%v", err, response)
		return nil, err
	}

	if err = UnmarshalUseNumber(bodyData, &jsonResult); err != nil {
		return nil, err
	}
	return jsonResult, nil
}

func HTTPBody2Values(data []byte, needDecode bool) (url.Values, error) {
	bodyStr := string(data)
	if needDecode {
		bodyStr1, err := url.QueryUnescape(bodyStr)
		if err != nil {
			baseapi.SugarLogger.Errorf("QueryUnescape error:%v, bodyStr:%v", err, bodyStr)
			return nil, err
		}
		bodyStr = bodyStr1
	}
	result, err := url.ParseQuery(bodyStr)
	if err != nil {
		baseapi.SugarLogger.Errorf("ParseQuery error:%v, bodyStr:%v", err, bodyStr)
		return nil, err
	}
	return result, nil
}

func Params2Map(key1, value1 interface{}, kv ...interface{}) (retVal map[string]interface{}) {
	retVal = make(map[string]interface{})
	retVal[key1.(string)] = value1

	key := ""
	for index, v := range kv {
		if index%2 == 0 {
			key = v.(string)
		} else {
			retVal[key] = v
		}
	}

	return retVal
}

func URLValues2Map(values url.Values) (retVal map[string]interface{}) {
	retVal = make(map[string]interface{})
	for k := range values {
		retVal[k] = values.Get(k)
	}
	return retVal
}

func Map2URLValues(mapData map[string]interface{}) (retVal url.Values) {
	retVal = make(url.Values)
	for k, v := range mapData {
		retVal.Set(k, fmt.Sprint(v))
	}
	return retVal
}

func MapKV2List(mapData map[string]interface{}) []map[string]interface{} {
	retVal := make([]map[string]interface{}, len(mapData))
	index := 0
	for _, v := range mapData {
		retVal[index] = v.(map[string]interface{})
		index++
	}
	return retVal
}

func Format4Output(obj interface{}, isSingleLine bool) (retVal string) {
	retVal, ok := obj.(string)
	if !ok {
		var (
			result []byte
			err    error
		)
		if isSingleLine {
			if result, err = json.Marshal(obj); err == nil {
				retVal = string(result)
			}
		} else {
			if result, err = json.MarshalIndent(obj, "", "\t"); err == nil {
				retVal = string(result)
			}
		}
		if err != nil {
			baseapi.SugarLogger.Infof("Format4Output Marshal:%v failed with error:%v", obj, err)
			retVal = fmt.Sprintf("%v", obj)
		}
	}
	return retVal
}