gologger/main.go

package gologger

import (
	"time"
)

const (
	NoLog = iota
	Error
	Warn
	Info
	Debug
	Trace
)

var loggerMap map[string]Logger = map[string]Logger{}

type LogConfig struct {
	Name     string
	Level    int
	Appender LoggerAppender
}
type Logger struct {
	LogConfig
}

type LogEvent struct {
	Ts    time.Time
	Level int
	Data  []interface{}
}

type LoggerAppender interface {
	GetName() string
	Append(logEvent LogEvent)
}

var consoleAppender LoggerAppender = &ConsoleAppender{}
var defaultLogger = &LogConfig{
	Level:    Error,
	Appender: consoleAppender,
}

func (l *Logger) log(Level int, msg ...interface{}) {

	if Level <= l.Level {
		now := time.Now()
		logEvent := LogEvent{now, Level, msg}
		l.Appender.Append(logEvent)
		// fmt.Println(now.Format("2006-01-02 15:04:05"), " ", l.Name, ": ", msg)
	}
}

func (l *Logger) Error(msg ...interface{}) {
	l.log(Error, msg)
}

func (l *Logger) Warn(msg ...interface{}) {
	l.log(Warn, msg)
}

func (l *Logger) Info(msg ...interface{}) {
	l.log(Info, msg)
}

func (l *Logger) Debug(msg ...interface{}) {
	l.log(Debug, msg)
}

func (l *Logger) Trace(msg ...interface{}) {
	l.log(Trace, msg)
}
func GetLogger(logConfig LogConfig) Logger {
	if logger, ok := loggerMap[logConfig.Name]; ok {
		return logger
	} else {
		logger := &Logger{logConfig}
		if logger.Appender == nil {
			logger.Appender = defaultLogger.Appender
		}
		loggerMap[logConfig.Name] = *logger
		return *logger
	}

}