package blog4go

import (
"fmt"
"os"
"time"
)

// ConsoleWriter is a console logger
type ConsoleWriter struct {
blog *BLog
// for stderr
errblog *BLog

redirected bool

closed bool

colored bool

// log hook
hook      Hook
hookLevel LevelType
hookAsync bool
}

// NewConsoleWriter initialize a console writer, singlton
func NewConsoleWriter(redirected bool) (err error) {
singltonLock.Lock()
defer singltonLock.Unlock()
if nil != blog {
return ErrAlreadyInit
}

consoleWriter, err := newConsoleWriter(redirected)
if nil != err {
return err
}

blog = consoleWriter
go consoleWriter.daemon()
return nil
}

// newConsoleWriter initialize a console writer, not singlton
// if redirected, stderr will be redirected to stdout
func newConsoleWriter(redirected bool) (consoleWriter *ConsoleWriter, err error) {
consoleWriter = new(ConsoleWriter)
consoleWriter.blog = NewBLog(os.Stdout)
consoleWriter.redirected = redirected
if !redirected {
consoleWriter.errblog = NewBLog(os.Stderr)
}

consoleWriter.closed = false

consoleWriter.colored = false

// log hook
consoleWriter.hook = nil
consoleWriter.hookLevel = DEBUG
consoleWriter.hookAsync = true

go consoleWriter.daemon()

blog = consoleWriter
return consoleWriter, nil
}

func (writer *ConsoleWriter) daemon() {
f := time.Tick(1 * time.Second)

DaemonLoop:
for {
select {
case <-f:
if writer.closed {
break DaemonLoop
}

writer.flush()
}
}
}

func (writer *ConsoleWriter) write(level LevelType, args ...interface{}) {
if writer.closed {
return
}
defer func() {
if nil != writer.hook && !(level < writer.hookLevel) {
if writer.hookAsync {
go func(level LevelType, args ...interface{}) {
writer.hook.Fire(level, args...)
}(level, args...)

} else {
writer.hook.Fire(level, args...)
}
}
}()

if !writer.redirected && level >= WARNING {
writer.errblog.write(level, args...)
return
}

writer.blog.write(level, args...)
}

func (writer *ConsoleWriter) writef(level LevelType, format string, args ...interface{}) {
if writer.closed {
return
}

defer func() {

if nil != writer.hook && !(level < writer.hookLevel) {
if writer.hookAsync {
go func(level LevelType, format string, args ...interface{}) {
writer.hook.Fire(level, fmt.Sprintf(format, args...))
}(level, format, args...)

} else {
writer.hook.Fire(level, fmt.Sprintf(format, args...))
}
}
}()

if !writer.redirected && level >= WARNING {
writer.errblog.writef(level, format, args...)
return
}

writer.blog.writef(level, format, args...)
}

// Level get level
func (writer *ConsoleWriter) Level() LevelType {
return writer.blog.Level()
}

// SetLevel set logger level
func (writer *ConsoleWriter) SetLevel(level LevelType) {
writer.blog.SetLevel(level)
}

// Colored get Colored
func (writer *ConsoleWriter) Colored() bool {
return writer.colored
}

// SetColored set logging color
func (writer *ConsoleWriter) SetColored(colored bool) {
if colored == writer.colored {
return
}

writer.colored = colored

initPrefix(colored)
}

// SetHook set hook for logging action
func (writer *ConsoleWriter) SetHook(hook Hook) {
writer.hook = hook
}

// SetHookAsync set hook async for base file writer
func (writer *ConsoleWriter) SetHookAsync(async bool) {
writer.hookAsync = async
}

// SetHookLevel set when hook will be called
func (writer *ConsoleWriter) SetHookLevel(level LevelType) {
writer.hookLevel = level
}

// Close close console writer
func (writer *ConsoleWriter) Close() {
if writer.closed {
return
}

writer.blog.flush()
writer.blog = nil
writer.closed = true
}

// TimeRotated do nothing
func (writer *ConsoleWriter) TimeRotated() bool {
return false
}

// SetTimeRotated do nothing
func (writer *ConsoleWriter) SetTimeRotated(timeRotated bool) {
return
}

// Retentions do nothing
func (writer *ConsoleWriter) Retentions() int64 {
return 0
}

// SetRetentions do nothing
func (writer *ConsoleWriter) SetRetentions(retentions int64) {
return
}

// RotateSize do nothing
func (writer *ConsoleWriter) RotateSize() int64 {
return 0
}

// SetRotateSize do nothing
func (writer *ConsoleWriter) SetRotateSize(rotateSize int64) {
return
}

// RotateLines do nothing
func (writer *ConsoleWriter) RotateLines() int {
return 0
}

// SetRotateLines do nothing
func (writer *ConsoleWriter) SetRotateLines(rotateLines int) {
return
}

// flush buffer to disk
func (writer *ConsoleWriter) flush() {
writer.blog.flush()
}

// Trace trace
func (writer *ConsoleWriter) Trace(args ...interface{}) {
if nil == writer.blog || TRACE < writer.blog.Level() {
return
}

writer.write(TRACE, args...)
}

// Tracef tracef
func (writer *ConsoleWriter) Tracef(format string, args ...interface{}) {
if nil == writer.blog || TRACE < writer.blog.Level() {
return
}

writer.writef(TRACE, format, args...)
}

// Debug debug
func (writer *ConsoleWriter) Debug(args ...interface{}) {
if nil == writer.blog || DEBUG < writer.blog.Level() {
return
}

writer.write(DEBUG, args...)
}

// Debugf debugf
func (writer *ConsoleWriter) Debugf(format string, args ...interface{}) {
if nil == writer.blog || DEBUG < writer.blog.Level() {
return
}

writer.writef(DEBUG, format, args...)
}

// Info info
func (writer *ConsoleWriter) Info(args ...interface{}) {
if nil == writer.blog || INFO < writer.blog.Level() {
return
}

writer.write(INFO, args...)
}

// Infof infof
func (writer *ConsoleWriter) Infof(format string, args ...interface{}) {
if nil == writer.blog || INFO < writer.blog.Level() {
return
}

writer.writef(INFO, format, args...)
}

// Warn warn
func (writer *ConsoleWriter) Warn(args ...interface{}) {
if nil == writer.blog || WARNING < writer.blog.Level() {
return
}

writer.write(WARNING, args...)
}

// Warnf warnf
func (writer *ConsoleWriter) Warnf(format string, args ...interface{}) {
if nil == writer.blog || WARNING < writer.blog.Level() {
return
}

writer.writef(WARNING, format, args...)
}

// Error error
func (writer *ConsoleWriter) Error(args ...interface{}) {
if nil == writer.blog || ERROR < writer.blog.Level() {
return
}

writer.write(ERROR, args...)
}

// Errorf errorf
func (writer *ConsoleWriter) Errorf(format string, args ...interface{}) {
if nil == writer.blog || ERROR < writer.blog.Level() {
return
}

writer.writef(ERROR, format, args...)
}

// Critical critical
func (writer *ConsoleWriter) Critical(args ...interface{}) {
if nil == writer.blog || CRITICAL < writer.blog.Level() {
return
}

writer.write(CRITICAL, args...)
}

// Criticalf criticalf
func (writer *ConsoleWriter) Criticalf(format string, args ...interface{}) {
if nil == writer.blog || CRITICAL < writer.blog.Level() {
return
}

writer.writef(CRITICAL, format, args...)
}

consoleWriter.go的更多相关文章

  1. Using FreeMarker templates (FTL)- Tutorial

    Lars Vogel, (c) 2012, 2016 vogella GmbHVersion 1.4,06.10.2016 Table of Contents 1. Introduction to F ...

  2. go第三方日志系统-seelog-Basic sections

    https://github.com/cihub/seelog 文档学习:https://github.com/cihub/seelog/wiki 1.安装: go get github.com/ci ...

  3. go第三方日志系统-seelog-使用文档

    参考:https://godoc.org/github.com/cihub/seelog 导入方式: import "github.com/cihub/seelog" 包seelo ...

  4. Go第七篇之规范的接口

    接口本身是调用方和实现方均需要遵守的一种协议,大家按照统一的方法命名参数类型和数量来协调逻辑处理的过程. Go 语言中使用组合实现对象特性的描述.对象的内部使用结构体内嵌组合对象应该具有的特性,对外通 ...

  5. 07. Go 语言接口

    Go 语言接口 接口本身是调用方和实现方均需要遵守的一种协议,大家按照统一的方法命名参数类型和数量来协调逻辑处理的过程. Go 语言中使用组合实现对象特性的描述.对象的内部使用结构体内嵌组合对象应该具 ...

随机推荐

  1. 解决IE7兼容H5新标签的方法

    外部引入JS <script src="http://cdn.bootcss.com/html5shiv/r29/html5.min.js"></script&g ...

  2. MongoDB学习笔记（三）

    第三章 索引操作及性能测试 索引在大数据下的重要性就不多说了 下面测试中用到了mongodb的一个客户端工具Robomongo,大家可以在网上选择下载.官网下载地址:http://www.robomo ...

  3. storm中的Scheduler

    Scheduler是storm的调度器,负责为topology分配当前集群中可用的资源.Storm分别提供了3中调度器: EvenScheduler:会将系统中的可用资源均匀地分配给当前需要任务分配的 ...

  4. [转]CAS原理

    在JDK 5之前Java语言是靠synchronized关键字保证同步的,这会导致有锁(后面的章节还会谈到锁). 锁机制存在以下问题: (1)在多线程竞争下,加锁.释放锁会导致比较多的上下文切换和调度 ...

  5. flash 视频 死机(转贴)

    http://zhidao.baidu.com/question/120464366 打开有关flash的网站就定屏死机 打开flash的网站经常定屏死机,打开酷狗,看土豆网遇到旁边那些广告也一样死机 ...

  6. 【计算机视觉】深度相机（一）--TOF总结

    http://www.voidcn.com/blog/lg1259156776/article/p-6302915.html 1.1 TOF初探 TOF是Time of flight的简写,直译为飞行 ...

  7. 日常踩坑笔记：spring的context:property-placeholder标签

    背景: 原来的项目一直跑着没有问题,今天突然想在原有项目的基础上,加上redis进行数据的缓存,原来项目的架构就是传统的SSM框架,于是,大刀阔斧的开始改装了... 编写redis的配置文件——red ...

  8. python爬虫——词云分析最热门电影《后来的我们》

    1 模块库使用说明 1.1 requests库 requests 是用Python语言编写,基于 urllib,采用 Apache2 Licensed 开源协议的 HTTP 库.它比 urllib 更 ...

  9. ccf 目录格式转换

    任务背景: 在网络上获取的ccf目录的格式是PDF,但是要进行数据分析时,PDF格式的数据是不符合要求的,因此需要将pdf格式转化为excel格式 任务目的: 将pdf格式的CCF目录转化为excel ...

  10. HTML 学习笔记 day three

    HTML学习笔记 Day three 7.2插入多媒体元素 插入音乐 语法结构:<embed  src=”音乐文件的路径”></embed> 属性: Autostart:他只有 ...