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logger.go
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logger.go
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package log
import (
"context"
"errors"
"fmt"
"sync"
)
type LoggerWriter interface {
Write(ctx context.Context, level Level, format string, args ...interface{}) error
Flush() error
}
type Logger struct {
logLevel Level
loggerWriter LoggerWriter
mu sync.RWMutex
}
func NewLogger(loggerWriter LoggerWriter) *Logger {
return &Logger{
loggerWriter: loggerWriter,
}
}
func (l *Logger) GetWriter() LoggerWriter {
return l.loggerWriter
}
func (l *Logger) SetLogLevel(level Level) {
l.mu.Lock()
defer l.mu.Unlock()
l.logLevel = level
}
func (l *Logger) GetLogLevel() Level {
l.mu.RLock()
defer l.mu.RUnlock()
return l.logLevel
}
func (l *Logger) Debug(ctx context.Context, content interface{}) {
if err := l.write(ctx, LevelDebug, content); err != nil {
panic(err)
}
}
func (l *Logger) Info(ctx context.Context, content interface{}) {
if err := l.write(ctx, LevelInfo, content); err != nil {
panic(err)
}
}
func (l *Logger) Warn(ctx context.Context, content interface{}) {
if err := l.write(ctx, LevelDebug, content); err != nil {
panic(err)
}
}
func (l *Logger) Error(ctx context.Context, content interface{}) {
if err := l.write(ctx, LevelError, content); err != nil {
panic(err)
}
}
func (l *Logger) Fatal(ctx context.Context, content interface{}) {
if err := l.write(ctx, LevelFatal, content); err != nil {
panic(err)
}
}
func (l *Logger) Panic(ctx context.Context, content interface{}) {
if err := l.write(ctx, LevelPanic, content); err != nil {
panic(err)
}
}
func (l *Logger) Debugf(ctx context.Context, format string, args ...interface{}) {
if err := l.write(ctx, LevelDebug, append([]interface{}{format}, args...)...); err != nil {
panic(err)
}
}
func (l *Logger) Infof(ctx context.Context, format string, args ...interface{}) {
if err := l.write(ctx, LevelInfo, append([]interface{}{format}, args...)...); err != nil {
panic(err)
}
}
func (l *Logger) Warnf(ctx context.Context, format string, args ...interface{}) {
if err := l.write(ctx, LevelWarn, append([]interface{}{format}, args...)...); err != nil {
panic(err)
}
}
func (l *Logger) Errorf(ctx context.Context, format string, args ...interface{}) {
if err := l.write(ctx, LevelError, append([]interface{}{format}, args...)...); err != nil {
panic(err)
}
}
func (l *Logger) Fatalf(ctx context.Context, format string, args ...interface{}) {
if err := l.write(ctx, LevelFatal, append([]interface{}{format}, args...)...); err != nil {
panic(err)
}
}
func (l *Logger) Panicf(ctx context.Context, format string, args ...interface{}) {
if err := l.write(ctx, LevelPanic, append([]interface{}{format}, args...)...); err != nil {
panic(err)
}
}
func (l *Logger) write(ctx context.Context, level Level, args ...interface{}) error {
if l.logLevel > level {
return nil
}
argNum := len(args)
if argNum == 0 {
return errors.New("args num is 0")
}
var realArgs []interface{}
if argNum > 1 {
realArgs = args[1:]
}
format := fmt.Sprintf("%s", args[0])
if err := l.loggerWriter.Write(ctx, level, format, realArgs...); err != nil {
return err
}
return nil
}
func (l *Logger) Flush() error {
return l.loggerWriter.Flush()
}