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- package fslog
- import (
- "fmt"
- "go.uber.org/zap"
- "go.uber.org/zap/zapcore"
- "gopkg.in/natefinch/lumberjack.v2"
- "io"
- "sync"
- )
- // 默认配置,准备了控制台、json文件两种输出方式
- var consoleEncoder zapcore.Encoder
- var jsonEncoder zapcore.Encoder
- var consoleSync zapcore.WriteSyncer
- var outputSync zapcore.WriteSyncer
- type outFileConfig struct {
- filename string
- maxSize int
- maxAge int
- maxBackups int
- localTime bool
- Compress bool
- }
- type Logger struct {
- // 互斥量
- // 用于内部不可并发逻辑使用
- lock sync.Mutex
- // 日志打印用
- logger zap.SugaredLogger
- // 当前日志打印级别
- // 借助zap内部级别设置机制,该机制
- // 内部使用乐观锁,协程安全
- lv zap.AtomicLevel
- // zapcore.Core 映射,存储不同来源/用途的core创建
- cores map[coreType][]CoreContext
- }
- func NewLogger() *Logger {
- logger := new(Logger)
- logger.lv = zap.NewAtomicLevelAt(zap.DebugLevel)
- logger.setCore(console, CoreContext{
- Core: zapcore.NewCore(consoleEncoder, consoleSync, logger.lv),
- Writer: consoleSync,
- })
- logger.setCore(output, CoreContext{
- Core: zapcore.NewCore(jsonEncoder, outputSync, logger.lv),
- Writer: outputSync,
- })
- logger.flush()
- return logger
- }
- // With 拼接自定义信息
- // 主要用于打印当前环境快照信息(变量或其他自定义信息)
- // 打印后,该信息会跟随日志一起打印
- func (l *Logger) With(k string, v any) *Logger {
- newL := l.clone()
- newL.logger = *newL.logger.With(zap.Any(k, v))
- return newL
- }
- // Debug 格式化打印调试级别日志
- // 不同于zap内部可变参数逻辑,该可变参数是用于,字符串格式化的
- func (l *Logger) Debug(msg string, vs ...any) {
- if len(vs) == 0 {
- l.logger.Debug(msg)
- return
- }
- l.logger.Debugf(fmt.Sprintf(msg, vs...))
- }
- // Info 格式化打印信息级别日志
- // 不同于zap内部可变参数逻辑,该可变参数是用于,字符串格式化的
- func (l *Logger) Info(msg string, vs ...any) {
- if len(vs) == 0 {
- l.logger.Info(msg)
- return
- }
- l.logger.Infof(msg, vs...)
- }
- // Warn 格式化打印警告级别日志
- // 不同于zap内部可变参数逻辑,该可变参数是用于,字符串格式化的
- func (l *Logger) Warn(msg string, vs ...any) {
- if len(vs) == 0 {
- l.logger.Warn(msg)
- return
- }
- l.logger.Warnf(msg, vs...)
- }
- // Error 打印错误级别日志
- // 该方法具有两种传参形式:
- // 1. error类型:会直接格式化打印%+v日志
- // 2. 信息(格式化)
- // 3. error+格式化信息:error会作为 With 格式存在,且依旧以%+v格式输出
- func (l *Logger) Error(vs ...any) {
- if len(vs) == 0 {
- return
- }
- err, ok := vs[0].(error)
- if ok {
- if len(vs) == 1 {
- l.logger.Errorf("%+v", err)
- return
- }
- withed := l.logger.With(zap.String("err", fmt.Sprintf("%+v", err)))
- msg, ok := vs[1].(string)
- if ok {
- withed.Errorf(msg, vs[2:])
- return
- }
- withed.Error(vs[1:])
- return
- }
- msg, ok := vs[0].(string)
- if ok {
- if len(vs) > 1 {
- l.logger.Errorf(msg, vs[1:]...)
- return
- }
- if len(vs) == 1 {
- l.logger.Error(vs[0])
- return
- }
- }
- }
- // Lv 获取当前日志打印级别
- func (l *Logger) Lv() zap.AtomicLevel {
- return l.lv
- }
- // SetLv 设置当前日志打印级别
- func (l *Logger) SetLv(lv Level) {
- l.lv.SetLevel(lv.zap())
- }
- // NewFileOutput 新增日志输出文件配置
- func (l *Logger) NewFileOutput(opts ...FileOutputOpt) {
- cfg := new(outFileConfig)
- for _, opt := range opts {
- opt(cfg)
- }
- l.newOut(&lumberjack.Logger{
- Filename: cfg.filename,
- MaxSize: cfg.maxSize,
- MaxAge: cfg.maxAge,
- MaxBackups: cfg.maxBackups,
- LocalTime: cfg.localTime,
- Compress: cfg.Compress,
- })
- }
- // NewOutput 新增日志输出位置
- func (l *Logger) NewOutput(writer io.Writer) {
- l.newOut(writer)
- }
- // AddCore 添加Core
- func (l *Logger) AddCore(core ...CoreContext) {
- l.setCore(third, core...)
- l.flush()
- }
- // Flush 将缓冲区日志刷新至目标
- func (l *Logger) Flush() {
- err := l.logger.Sync()
- if err != nil {
- Warn("flush log error: %s", err.Error())
- }
- }
- // newOut 设置日志写出位置
- func (l *Logger) newOut(writer io.Writer) {
- l.setCore(output, CoreContext{
- Core: zapcore.NewCore(jsonEncoder, zapcore.AddSync(writer), l.lv),
- Writer: writer,
- })
- l.flush()
- }
- // 保存内部core(不负责刷新 logger)
- func (l *Logger) setCore(ct coreType, core ...CoreContext) {
- l.lock.Lock()
- defer l.lock.Unlock()
- if l.cores == nil {
- l.cores = make(map[coreType][]CoreContext)
- }
- l.cores[ct] = append(l.cores[ct], core...)
- }
- // 刷新内部 logger
- // 刷新互斥,触发刷新后,刷新完成前依旧按照旧的配置执行
- func (l *Logger) flush() {
- l.lock.Lock()
- defer l.lock.Unlock()
- cores := make(coreContexts, 0, len(l.cores))
- for _, core := range l.cores {
- cores = append(cores, core...)
- }
- l.logger = *zap.New(
- zapcore.NewTee(cores.Cores()...),
- zap.AddCaller(),
- ).Sugar()
- }
- func (l *Logger) clone() *Logger {
- newL := &Logger{cores: l.cores, lv: l.lv}
- newL.flush()
- return newL
- }
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