fohow_api/go/gopath/src/fohow.com/apps/helper/raw.go

package helper

import (
	"encoding/json"
	"fmt"
	"reflect"
	"strconv"
)

type Raw struct {
	val interface{}
}
type argInt []int

func NewRaw(val interface{}) *Raw {
	return &Raw{val: val}
}

//json解码
func (v *Raw) JSONDecode(val interface{}) error {
	return json.Unmarshal(v.val.([]byte), val)
}

//json加密
func (v *Raw) JSONEncode() ([]byte, error) {
	j, err := json.Marshal(v.val)
	if err == nil {
		return j, nil
	}
	return nil, err
}
func (a argInt) Get(i int, args ...int) (r int) {
	if i >= 0 && i < len(a) {
		r = a[i]
	}
	if len(args) > 0 {
		r = args[0]
	}
	return r
}

func (v *Raw) Result(args ...int) *Result {
	return NewResult(v.ToStr(args...))
}

func (v *Raw) String(args ...int) (s string) {
	return v.ToStr(args...)
}
func (v *Raw) Str(args ...int) *Str {
	return NewStr(v.ToStr(args...))
}

//是否为空
func (r *Raw) Empty() bool {
	if r.val == nil {
		return true
	}
	v := reflect.ValueOf(r.val)
	switch v.Kind() {
	case reflect.String, reflect.Array:
		return v.Len() == 0
	case reflect.Map, reflect.Slice:
		return v.Len() == 0 || v.IsNil()
	case reflect.Bool:
		return !v.Bool()
	case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
		return v.Int() == 0
	case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Uintptr:
		return v.Uint() == 0
	case reflect.Float32, reflect.Float64:
		return v.Float() == 0
	case reflect.Interface, reflect.Ptr:
		return v.IsNil()
	}
	return reflect.DeepEqual(r.val, reflect.Zero(v.Type()).Interface())
}
func (v *Raw) ToStr(args ...int) (s string) {
	switch v := v.val.(type) {
	case bool:
		s = strconv.FormatBool(v)
	case float32:
		s = strconv.FormatFloat(float64(v), 'f', argInt(args).Get(0, -1), argInt(args).Get(1, 32))
	case float64:
		s = strconv.FormatFloat(v, 'f', argInt(args).Get(0, -1), argInt(args).Get(1, 64))
	case int:
		s = strconv.FormatInt(int64(v), argInt(args).Get(0, 10))
	case int8:
		s = strconv.FormatInt(int64(v), argInt(args).Get(0, 10))
	case int16:
		s = strconv.FormatInt(int64(v), argInt(args).Get(0, 10))
	case int32:
		s = strconv.FormatInt(int64(v), argInt(args).Get(0, 10))
	case int64:
		s = strconv.FormatInt(v, argInt(args).Get(0, 10))
	case uint:
		s = strconv.FormatUint(uint64(v), argInt(args).Get(0, 10))
	case uint8:
		s = strconv.FormatUint(uint64(v), argInt(args).Get(0, 10))
	case uint16:
		s = strconv.FormatUint(uint64(v), argInt(args).Get(0, 10))
	case uint32:
		s = strconv.FormatUint(uint64(v), argInt(args).Get(0, 10))
	case uint64:
		s = strconv.FormatUint(v, argInt(args).Get(0, 10))
	case string:
		s = v
	case []byte:
		s = string(v)
	default:
		s = fmt.Sprintf("%v", v)
	}
	return s
}