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Beego/cache/conv.go
2013-12-22 13:35:02 +08:00

111 lines
1.7 KiB
Go

package cache
import (
"fmt"
"strconv"
)
// convert interface to string.
func GetString(v interface{}) string {
switch result := v.(type) {
case string:
return result
case []byte:
return string(result)
default:
if v == nil {
return ""
} else {
return fmt.Sprintf("%v", result)
}
}
}
// convert interface to int.
func GetInt(v interface{}) int {
switch result := v.(type) {
case int:
return result
case int32:
return int(result)
case int64:
return int(result)
default:
d := GetString(v)
if d != "" {
value, err := strconv.Atoi(d)
if err == nil {
return value
}
}
}
return 0
}
// convert interface to int64.
func GetInt64(v interface{}) int64 {
switch result := v.(type) {
case int:
return int64(result)
case int32:
return int64(result)
case int64:
return result
default:
d := GetString(v)
if d != "" {
result, err := strconv.ParseInt(d, 10, 64)
if err == nil {
return result
}
}
}
return 0
}
// convert interface to float64.
func GetFloat64(v interface{}) float64 {
switch result := v.(type) {
case float64:
return result
default:
d := GetString(v)
if d != "" {
value, err := strconv.ParseFloat(d, 64)
if err == nil {
return value
}
}
}
return 0
}
// convert interface to bool.
func GetBool(v interface{}) bool {
switch result := v.(type) {
case bool:
return result
default:
d := GetString(v)
if d != "" {
result, err := strconv.ParseBool(d)
if err == nil {
return result
}
}
}
return false
}
// convert interface to byte slice.
func getByteArray(v interface{}) []byte {
switch result := v.(type) {
case []byte:
return result
case string:
return []byte(result)
default:
return nil
}
}