81 lines
1.4 KiB
Go
81 lines
1.4 KiB
Go
package logging
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import (
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"errors"
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"fmt"
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"strings"
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"sync"
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)
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var (
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loggers map[string]*Logger
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lock sync.Mutex
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)
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type Level byte
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const (
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DEBUG Level = iota
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INFO
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WARNING
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ERROR
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CRITICAL
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FATAL
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DEFAULT_LEVEL = INFO
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)
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var levelNames = [6]string{"DEBUG", "INFO", "WARNING", "ERROR", "CRITICAL", "FATAL"}
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func (l Level) Name() string {
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return levelNames[l]
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}
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func LevelByName(l string) (Level, error) {
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for pos, name := range levelNames {
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if name == l {
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return Level(pos), nil
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}
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}
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return DEBUG, errors.New(fmt.Sprintf("Invalid log level %s", l))
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}
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type Formatter func(*Record) string
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func GetLogger(name string) (l *Logger) {
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lock.Lock()
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defer lock.Unlock()
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if name == "" {
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name = "default"
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}
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l, ok := loggers[name]
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if !ok {
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l = NewLogger(name)
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backend := NewStdoutBackend()
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l.AddBackend(backend)
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l.SetLevel(DEBUG)
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loggers[name] = l
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}
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return l
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}
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var defaultFormatter Formatter = func(r *Record) string {
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return fmt.Sprintf("%s [%-8s] %s: %s\n",
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r.Timestamp.Format("2006/01/02 15:04:05"), r.Level.Name(), r.Logger,
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strings.TrimSpace(r.Message))
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}
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var basicFormatter Formatter = func(r *Record) string {
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return fmt.Sprintf("%s: %s", r.Logger, strings.TrimSpace(r.Message))
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}
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func init() {
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loggers = make(map[string]*Logger, 3)
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logger := NewLogger("default")
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backend := NewStdoutBackend()
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logger.AddBackend(backend)
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logger.SetLevel(DEBUG)
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loggers["default"] = logger
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}
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