micro/logger/logger.go
2020-02-06 21:37:17 +00:00

50 lines
1.1 KiB
Go

// Package log provides a log interface
package logger
import (
"fmt"
"sync"
)
// Logger is a generic logging interface
type Logger interface {
// Init initialises options
Init(options ...Option) error
// Level returns the logging level
Level() Level
// Log inserts a log entry. Arguments may be handled in the manner
// of fmt.Print, but the underlying logger may also decide to handle
// them differently.
Log(level Level, v ...interface{})
// Logf insets a log entry. Arguments are handled in the manner of
// fmt.Printf.
Logf(level Level, format string, v ...interface{})
// Fields set fields to always be logged
Fields(fields ...Field) Logger
// SetLevel updates the logging level.
SetLevel(Level)
// String returns the name of logger
String() string
}
var (
mtx sync.Mutex
loggerMap = map[string]Logger{}
)
func Register(logger Logger) {
mtx.Lock()
defer mtx.Unlock()
loggerMap[logger.String()] = logger
}
func GetLogger(name string) (Logger, error) {
l := loggerMap[name]
if l == nil {
return nil, fmt.Errorf("no such name logger found %s", name)
}
return l, nil
}