func (bl *BeeLogger) GetLevel() int {
	return bl.level
}
GetLevel Get Current log message level.
package logs
import (
	"fmt"
	"log"
	"os"
	"path"
	"runtime"
	"strconv"
	"strings"
	"sync"
	"time"
)
const (
	LevelEmergency = iota
	LevelAlert
	LevelCritical
	LevelError
	LevelWarning
	LevelNotice
	LevelInformational
	LevelDebug
)
const levelLoggerImpl = -1
const (
	AdapterConsole   = "console"
	AdapterFile      = "file"
	AdapterMultiFile = "multifile"
	AdapterMail      = "smtp"
	AdapterConn      = "conn"
	AdapterEs        = "es"
	AdapterJianLiao  = "jianliao"
	AdapterSlack     = "slack"
	AdapterAliLS     = "alils"
)
const (
	LevelInfo  = LevelInformational
	LevelTrace = LevelDebug
	LevelWarn  = LevelWarning
)
type newLoggerFunc func() Logger
type Logger interface {
	Init(config string) error
	WriteMsg(when time.Time, msg string, level int) error
	Destroy()
	Flush()
}
var adapters = make(map[string]newLoggerFunc)
var levelPrefix = [LevelDebug + 1]string{"[M]", "[A]", "[C]", "[E]", "[W]", "[N]", "[I]", "[D]"}
func Register(name string, log newLoggerFunc) {
	if log == nil {
		panic("logs: Register provide is nil")
	}
	if _, dup := adapters[name]; dup {
		panic("logs: Register called twice for provider " + name)
	}
	adapters[name] = log
}
type BeeLogger struct {
	lock                sync.Mutex
	level               int
	init                bool
	enableFuncCallDepth bool
	loggerFuncCallDepth int
	asynchronous        bool
	prefix              string
	msgChanLen          int64
	msgChan             chan *logMsg
	signalChan          chan string
	wg                  sync.WaitGroup
	outputs             []*nameLogger
}
const defaultAsyncMsgLen = 1e3
type nameLogger struct {
	Logger
	name string
}
type logMsg struct {
	level int
	msg   string
	when  time.Time
}
var logMsgPool *sync.Pool
func NewLogger(channelLens ...int64) *BeeLogger {
	bl := new(BeeLogger)
	bl.level = LevelDebug
	bl.loggerFuncCallDepth = 2
	bl.msgChanLen = append(channelLens, 0)[0]
	if bl.msgChanLen <= 0 {
		bl.msgChanLen = defaultAsyncMsgLen
	}
	bl.signalChan = make(chan string, 1)
	bl.setLogger(AdapterConsole)
	return bl
}
func (bl *BeeLogger) Async(msgLen ...int64) *BeeLogger {
	bl.lock.Lock()
	defer bl.lock.Unlock()
	if bl.asynchronous {
		return bl
	}
	bl.asynchronous = true
	if len(msgLen) > 0 && msgLen[0] > 0 {
		bl.msgChanLen = msgLen[0]
	}
	bl.msgChan = make(chan *logMsg, bl.msgChanLen)
	logMsgPool = &sync.Pool{
		New: func() interface{} {
			return &logMsg{}
		},
	}
	bl.wg.Add(1)
	go bl.startLogger()
	return bl
}
func (bl *BeeLogger) setLogger(adapterName string, configs ...string) error {
	config := append(configs, "{}")[0]
	for _, l := range bl.outputs {
		if l.name == adapterName {
			return fmt.Errorf("logs: duplicate adaptername %q (you have set this logger before)", adapterName)
		}
	}
	logAdapter, ok := adapters[adapterName]
	if !ok {
		return fmt.Errorf("logs: unknown adaptername %q (forgotten Register?)", adapterName)
	}
	lg := logAdapter()
	err := lg.Init(config)
	if err != nil {
		fmt.Fprintln(os.Stderr, "logs.BeeLogger.SetLogger: "+err.Error())
		return err
	}
	bl.outputs = append(bl.outputs, &nameLogger{name: adapterName, Logger: lg})
	return nil
}
func (bl *BeeLogger) SetLogger(adapterName string, configs ...string) error {
	bl.lock.Lock()
	defer bl.lock.Unlock()
	if !bl.init {
		bl.outputs = []*nameLogger{}
		bl.init = true
	}
	return bl.setLogger(adapterName, configs...)
}
func (bl *BeeLogger) DelLogger(adapterName string) error {
	bl.lock.Lock()
	defer bl.lock.Unlock()
	outputs := []*nameLogger{}
	for _, lg := range bl.outputs {
		if lg.name == adapterName {
			lg.Destroy()
		} else {
			outputs = append(outputs, lg)
		}
	}
	if len(outputs) == len(bl.outputs) {
		return fmt.Errorf("logs: unknown adaptername %q (forgotten Register?)", adapterName)
	}
	bl.outputs = outputs
	return nil
}
func (bl *BeeLogger) writeToLoggers(when time.Time, msg string, level int) {
	for _, l := range bl.outputs {
		err := l.WriteMsg(when, msg, level)
		if err != nil {
			fmt.Fprintf(os.Stderr, "unable to WriteMsg to adapter:%v,error:%v\n", l.name, err)
		}
	}
}
func (bl *BeeLogger) Write(p []byte) (n int, err error) {
	if len(p) == 0 {
		return 0, nil
	}
	if p[len(p)-1] == '\n' {
		p = p[0 : len(p)-1]
	}
	err = bl.writeMsg(levelLoggerImpl, string(p))
	if err == nil {
		return len(p), err
	}
	return 0, err
}
func (bl *BeeLogger) writeMsg(logLevel int, msg string, v ...interface{}) error {
	if !bl.init {
		bl.lock.Lock()
		bl.setLogger(AdapterConsole)
		bl.lock.Unlock()
	}
	if len(v) > 0 {
		msg = fmt.Sprintf(msg, v...)
	}
	msg = bl.prefix + " " + msg
	when := time.Now()
	if bl.enableFuncCallDepth {
		_, file, line, ok := runtime.Caller(bl.loggerFuncCallDepth)
		if !ok {
			file = "???"
			line = 0
		}
		_, filename := path.Split(file)
		msg = "[" + filename + ":" + strconv.Itoa(line) + "] " + msg
	}
	if logLevel == levelLoggerImpl {
		logLevel = LevelEmergency
	} else {
		msg = levelPrefix[logLevel] + " " + msg
	}
	if bl.asynchronous {
		lm := logMsgPool.Get().(*logMsg)
		lm.level = logLevel
		lm.msg = msg
		lm.when = when
		bl.msgChan <- lm
	} else {
		bl.writeToLoggers(when, msg, logLevel)
	}
	return nil
}
func (bl *BeeLogger) SetLevel(l int) {
	bl.level = l
}