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package logging
import (
"fmt"
"io/ioutil"
"log"
"os"
)
var (
dbg *log.Logger
info *log.Logger
warn *log.Logger
err *log.Logger
)
func Init() {
flags := log.Ldate | log.Ltime | log.Lmicroseconds | log.Lshortfile | log.LUTC
dbg = log.New(os.Stdout, "DEBUG ", flags)
info = log.New(os.Stdout, "INFO ", flags)
warn = log.New(os.Stdout, "WARN ", flags)
err = log.New(os.Stdout, "ERROR ", flags)
}
func ErrorLogger() *log.Logger {
if err == nil {
return log.New(ioutil.Discard, "", log.LstdFlags)
}
return err
}
func Debugf(message string, args ...interface{}) {
if dbg == nil {
return
}
if len(args) > 0 {
message = fmt.Sprintf(message, args...)
}
dbg.Output(2, message)
}
func Infof(message string, args ...interface{}) {
if info == nil {
return
}
if len(args) > 0 {
message = fmt.Sprintf(message, args...)
}
info.Output(2, message)
}
func Warnf(message string, args ...interface{}) {
if warn == nil {
return
}
if len(args) > 0 {
message = fmt.Sprintf(message, args...)
}
warn.Output(2, message)
}
func Errorf(message string, args ...interface{}) {
if err == nil {
return
}
if len(args) > 0 {
message = fmt.Sprintf(message, args...)
}
err.Output(2, message)
}
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