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string.go
78 lines (70 loc) · 1.52 KB
/
string.go
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package converter
import (
"encoding/json"
"log"
"strconv"
"time"
)
// ToString converts any value to string
func ToString(value interface{}) (result string) {
if value == nil {
return
}
switch v := value.(type) {
case string:
return v
case int:
return strconv.Itoa(v)
case int32:
return strconv.Itoa(int(v))
case int64:
return strconv.FormatInt(v, 10)
case bool:
return strconv.FormatBool(v)
case float32:
return strconv.FormatFloat(float64(v), 'f', -1, 32)
case float64:
return strconv.FormatFloat(v, 'f', -1, 64)
case []uint8:
return string(v)
case time.Time:
return v.Format(time.RFC3339)
default:
resultJSON, err := json.Marshal(v)
if err == nil {
return string(resultJSON)
} else {
log.Printf("failed to convert data ToString: [%#v] with error: [%v]\n", v, err)
}
}
return
}
// ArrIntToArrString converts an array of integers to an array of strings.
func ArrIntToArrString(arrInt []int) []string {
result := make([]string, len(arrInt))
for i, x := range arrInt {
result[i] = strconv.Itoa(x)
}
return result
}
// ToArrayOfString convert any value to []string
func ToArrayOfString(value interface{}) (result []string) {
r := make([]string, 0)
switch v := value.(type) {
case string:
err := json.Unmarshal([]byte(v), &r)
if err != nil {
log.Printf("failed to convert value ToArrayOfString: [%#v] with error: [%v]\n", v, err)
return
}
return r
case [][]byte:
b := v
for _, vv := range b {
return append(result, string(vv))
}
default:
return
}
return
}