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logger.go
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logger.go
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package slog
import (
"fmt"
"io"
"io/ioutil"
"log"
"os"
"github.com/luigiBaldanza/slog/level"
)
type (
// Slog struct type
Slog struct {
log *log.Logger
debug *log.Logger
info *log.Logger
warn *log.Logger
err *log.Logger
fatal *log.Logger
panic *log.Logger
}
)
// New logger service
func New(out io.Writer, flag int) Logger {
return &Slog{
log: log.New(out, level.Log.Prefix(), flag),
debug: log.New(ioutil.Discard, level.Debug.Prefix(), flag),
err: log.New(out, level.Err.Prefix(), flag),
fatal: log.New(out, level.Fatal.Prefix(), flag),
info: log.New(out, level.Info.Prefix(), flag),
panic: log.New(out, level.Panic.Prefix(), flag),
warn: log.New(out, level.Warn.Prefix(), flag),
}
}
// Log logger
func (s *Slog) Log(calldepth int, logLevel level.Type, values ...interface{}) {
logLevel.ValidatePrefix()
s.log.SetPrefix(logLevel.Prefix())
s.log.Output(calldepth, fmt.Sprintln(values...))
}
// Debug logger
func (s *Slog) Debug(values ...interface{}) {
s.Log(2, level.Debug, values...)
}
// Info logger
func (s *Slog) Info(values ...interface{}) {
s.Log(2, level.Info, values...)
}
// Warn logger
func (s *Slog) Warn(values ...interface{}) {
s.Log(2, level.Warn, values...)
}
// Error logger
func (s *Slog) Error(values ...interface{}) {
s.Log(2, level.Err, values...)
}
// Fatal logger
func (s *Slog) Fatal(values ...interface{}) {
s.Log(2, level.Fatal, values...)
os.Exit(1)
}
// Panic logger
func (s *Slog) Panic(values ...interface{}) {
s.Log(2, level.Panic, values...)
panic(values)
}