/
xlogger.go
198 lines (163 loc) · 4.37 KB
/
xlogger.go
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package xlog
import (
"fmt"
"io"
"log"
"os"
"path/filepath"
"runtime"
"sync"
"time"
)
const (
InvalidLevelMin = iota
DebugLevel
InfoLevel
WarnLevel
ErrorLevel
PanicLevel
InvalidLevelMax
)
type XLogLevelDef struct {
Level int
Name string
NameFmt string
}
var XLogLevelConf_Name = map[string]*XLogLevelDef{
"debug": &XLogLevelDef{DebugLevel, "debug", "[Debug]"},
"info": &XLogLevelDef{InfoLevel, "info", "[Info ]"},
"warn": &XLogLevelDef{WarnLevel, "warn", "[Warn ]"},
"error": &XLogLevelDef{ErrorLevel, "error", "[Error]"},
"panic": &XLogLevelDef{ErrorLevel, "panic", "[Panic]"},
}
var XLogLevelConf_Level = map[int]*XLogLevelDef{
DebugLevel: &XLogLevelDef{DebugLevel, "debug", "[Debug]"},
InfoLevel: &XLogLevelDef{InfoLevel, "info", "[Info ]"},
WarnLevel: &XLogLevelDef{WarnLevel, "warn", "[Warn ]"},
ErrorLevel: &XLogLevelDef{ErrorLevel, "error", "[Error]"},
PanicLevel: &XLogLevelDef{ErrorLevel, "panic", "[Panic]"},
}
///////////////////////////////////////////////////////////////////////////////
type XLogInter interface {
Debug(format string, args ...interface{})
Info(format string, args ...interface{})
Warn(format string, args ...interface{})
Error(format string, args ...interface{})
Fatal(format string, args ...interface{})
}
type XLogConfig struct {
Path string `json:path`
Level int `json:level`
}
func NewXLogger(config *XLogConfig) *XLogger {
newer := &XLogger{
filepath: config.Path,
}
newer.writer = newer.rolling()
newer.level = func(level int) int {
if level > InvalidLevelMin && level < InvalidLevelMax {
return level
}
return DebugLevel
}(config.Level)
if nil == newer.writer {
return nil
}
newer.logger = log.New(newer.writer, "" /*prefix*/, 0 /*log.Lshortfile|log.LstdFlags*/)
return newer
}
type XLogger struct {
filepath string
suffix string
level int
lock sync.Mutex
writer io.Writer
logger *log.Logger
}
func (this *XLogger) rolling() io.Writer {
if "" == this.filepath {
return os.Stdout
}
this.lock.Lock()
defer this.lock.Unlock()
cur_timestamp := time.Now().Format("%y-%m-%d")
if this.suffix == cur_timestamp {
return this.writer
} else {
f, err := os.OpenFile(this.filepath+"_"+cur_timestamp, os.O_RDWR|os.O_APPEND|os.O_CREATE, 0755)
if err != nil {
return this.writer
}
this.writer = f
this.suffix = cur_timestamp
this.logger.SetOutput(f)
}
return this.writer
}
func (this *XLogger) precheck_enable(cur_level int) bool {
this.rolling()
return this.level <= cur_level
}
func (this *XLogger) runtime() (string, int) {
_, file, line, _ := runtime.Caller(4)
return file, line
}
func (this *XLogger) Print(level int, format string, v ...interface{}) error {
if false == this.precheck_enable(level) {
return nil
}
level_str := XLogLevelConf_Level[level].NameFmt
date_str := time.Now().Local().Format("2006-01-02 15:04:05.999999") // ("2006-01-02 15:04:05.999999 -0800 PST") //> time.Now().Local().Format(time.RFC3339Nano)
file, line := this.runtime()
msg := fmt.Sprintf(format, v...)
data := fmt.Sprintf("%v %v %v:%v %v", date_str, level_str, filepath.Base(file), line, msg)
return this.logger.Output(2, data)
}
func (this *XLogger) Debug(format string, v ...interface{}) {
this.Print(DebugLevel, format, v...)
}
func (this *XLogger) Info(format string, v ...interface{}) {
this.Print(InfoLevel, format, v...)
}
func (this *XLogger) Warn(format string, v ...interface{}) {
this.Print(WarnLevel, format, v...)
}
func (this *XLogger) Error(format string, v ...interface{}) {
this.Print(ErrorLevel, format, v...)
}
func (this *XLogger) Panic(format string, v ...interface{}) {
this.Print(PanicLevel, format, v...)
panic("")
}
///////////////////////////////////////////////////////////////////////////////
var g_config = &XLogConfig{}
var g_XLogger *XLogger
var once sync.Once
func SetCfg(cfg *XLogConfig) error {
if cfg != nil {
g_config = cfg
return nil
}
return fmt.Errorf("invalid args")
}
func Inst() *XLogger {
once.Do(func() {
g_XLogger = NewXLogger(g_config)
})
return g_XLogger
}
func Debug(format string, v ...interface{}) {
Inst().Debug(format, v...)
}
func Info(format string, v ...interface{}) {
Inst().Info(format, v...)
}
func Warn(format string, v ...interface{}) {
Inst().Warn(format, v...)
}
func Error(format string, v ...interface{}) {
Inst().Error(format, v...)
}
func Panic(format string, v ...interface{}) {
Inst().Panic(format, v...)
}