/
logger.go
86 lines (69 loc) · 1.31 KB
/
logger.go
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package express
import (
"code.google.com/p/log4go"
)
type LogConfig struct {
Level string
File string
Format string
Rotate bool
}
type Level int
const (
DEBUG Level = iota
INFO
WARNING
ERROR
)
var (
levelStrings = [...]string{"DEBG", "INFO", "WARN", "EROR"}
)
func (l Level) String() string {
if l < 0 || int(l) > len(levelStrings) {
return "UNKNOWN"
}
return levelStrings[int(l)]
}
type Logger interface {
Info(interface{}, ...interface{})
Debug(interface{}, ...interface{})
Warn(interface{}, ...interface{}) error
Error(interface{}, ...interface{}) error
}
func NewDefaultLogger() Logger {
return NewLogger(&LogConfig{
"debug",
"",
"",
false,
})
}
func NewLogger(config *LogConfig) Logger {
lvl := log4go.DEBUG
switch config.Level {
case "finest":
lvl = log4go.FINEST
case "fine":
lvl = log4go.FINE
case "trace":
lvl = log4go.TRACE
case "info":
lvl = log4go.INFO
case "warning":
lvl = log4go.WARNING
case "error":
lvl = log4go.ERROR
case "critical":
lvl = log4go.CRITICAL
}
log := make(log4go.Logger)
log.AddFilter("stdout", lvl, log4go.NewConsoleLogWriter())
if config.File != "" {
file := log4go.NewFileLogWriter(config.File, config.Rotate)
if config.Format != "" {
file.SetFormat(config.Format)
}
log.AddFilter("file", lvl, file)
}
return &log
}