/
logging.go
92 lines (78 loc) · 2.37 KB
/
logging.go
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package logging
import (
"fmt"
"os"
seelog "github.com/cihub/seelog"
)
type SeelogWrapper struct {
Log seelog.LoggerInterface
Level string
}
func (self *SeelogWrapper) init() (err error) {
if "" == self.Level {
self.Level = "debug"
}
self.Log = seelog.Disabled
// https://en.wikipedia.org/wiki/ANSI_escape_code#3/4_bit
// https://github.com/cihub/seelog/wiki/Log-levels
appConfig := `
<seelog minlevel="` + self.Level + `">
<outputs formatid="stdout">
<filter levels="debug,trace">
<console formatid="debug"/>
</filter>
<filter levels="info">
<console formatid="info"/>
</filter>
<filter levels="critical,error">
<console formatid="error"/>
</filter>
<filter levels="warn">
<console formatid="warn"/>
</filter>
</outputs>
<formats>
<format id="stdout" format="%Date %Time [%LEVEL] [PID-%pidLogFormatter] %File %FuncShort:%Line %Msg %n" />
<format id="debug" format="%Date %Time %EscM(37)[%LEVEL]%EscM(0) [PID-%pidLogFormatter] %File %FuncShort:%Line %Msg %n" />
<format id="info" format="%Date %Time %EscM(36)[%LEVEL]%EscM(0) [PID-%pidLogFormatter] %File %FuncShort:%Line %Msg %n" />
<format id="warn" format="%Date %Time %EscM(33)[%LEVEL]%EscM(0) [PID-%pidLogFormatter] %File %FuncShort:%Line %Msg %n" />
<format id="error" format="%Date %Time %EscM(31)[%LEVEL]%EscM(0) [PID-%pidLogFormatter] %File %FuncShort:%Line %Msg %n" />
</formats>
</seelog>
`
self.Log.Close()
self.Log, err = seelog.LoggerFromConfigAsBytes([]byte(appConfig))
return
}
func (self *SeelogWrapper) isValidLevel(level string) bool {
levels := [6]string{"debug", "trace", "info", "critical", "error", "warn"}
for i := range levels {
if levels[i] == level {
return true
}
}
return false
}
func (self *SeelogWrapper) SetLevel(level string) error {
if !self.isValidLevel(level) {
return fmt.Errorf("Mot a valid logging level")
}
self.Level = level
return self.init()
}
func New() (*SeelogWrapper, error) {
logger := new(SeelogWrapper)
logger.Level = "debug"
err := logger.init()
return logger, err
}
// https://github.com/cihub/seelog/wiki/Custom-formatters
func pidLogFormatter(params string) seelog.FormatterFunc {
return func(message string, level seelog.LogLevel, context seelog.LogContextInterface) interface{} {
var pid = os.Getpid()
return fmt.Sprintf("%v", pid)
}
}
func init() {
seelog.RegisterCustomFormatter("pidLogFormatter", pidLogFormatter)
}