66 lines
1.5 KiB
Go
66 lines
1.5 KiB
Go
package logger
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import (
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"log"
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"os"
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)
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type LoggerInterface interface {
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Tracef(fmt string, args ...interface{})
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Infof(fmt string, args ...interface{})
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Warnf(fmt string, args ...interface{})
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Errorf(fmt string, args ...interface{})
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}
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// a default implementation of the LoggerInterface, simply using the 'log' library
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type LeveledLogger struct {
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level int
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}
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var std = LeveledLogger{}
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var levels = map[string]int{
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"ERROR": 400,
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"WARN" : 300,
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"INFO" : 200,
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"TRACE" : 100,
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}
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func (l *LeveledLogger) levelPrint(minimumLevel int, fmt string, args ...interface{}) {
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if l.level == 0 {
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l.level = levels[os.Getenv("LOGLVL")]
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if l.level == 0 { l.level = levels["WARN"] }
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}
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if minimumLevel >= l.level {
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log.Printf(fmt+"\n", args...)
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}
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}
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func (l *LeveledLogger) Tracef(fmt string, args ...interface{}) {
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l.levelPrint(levels["TRACE"], fmt, args...)
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}
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func (l *LeveledLogger) Infof(fmt string, args ...interface{}) {
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l.levelPrint(levels["INFO"], fmt, args...)
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}
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func (l *LeveledLogger) Warnf(fmt string, args ...interface{}) {
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l.levelPrint(levels["WARN"], fmt, args...)
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}
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func (l *LeveledLogger) Errorf(fmt string, args ...interface{}) {
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l.levelPrint(levels["ERROR"], fmt, args...)
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}
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func Tracef(fmt string, args ...interface{}) {
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std.levelPrint(levels["TRACE"], fmt, args...)
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}
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func Infof(fmt string, args ...interface{}) {
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std.levelPrint(levels["INFO"], fmt, args...)
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}
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func Warnf(fmt string, args ...interface{}) {
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std.levelPrint(levels["WARN"], fmt, args...)
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}
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func Errorf(fmt string, args ...interface{}) {
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std.levelPrint(levels["ERROR"], fmt, args...)
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}
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