add google/slog logger

go.mod

@@ -9,12 +9,13 @@ require (
 	github.com/patrickmn/go-cache v2.1.0+incompatible
 	github.com/silas/dag v0.0.0-20220518035006-a7e85ada93c5
 	golang.org/x/sync v0.1.0
-	golang.org/x/sys v0.7.0
+	golang.org/x/sys v0.12.0
 	google.golang.org/grpc v1.54.0
 	google.golang.org/protobuf v1.30.0
 )
 
 require (
 	github.com/golang/protobuf v1.5.3 // indirect
+	golang.org/x/exp v0.0.0-20230905200255-921286631fa9 // indirect
 	google.golang.org/genproto v0.0.0-20230410155749-daa745c078e1 // indirect
 )

go.sum

@@ -13,11 +13,14 @@ github.com/patrickmn/go-cache v2.1.0+incompatible h1:HRMgzkcYKYpi3C8ajMPV8OFXaaR
 github.com/patrickmn/go-cache v2.1.0+incompatible/go.mod h1:3Qf8kWWT7OJRJbdiICTKqZju1ZixQ/KpMGzzAfe6+WQ=
 github.com/silas/dag v0.0.0-20220518035006-a7e85ada93c5 h1:G/FZtUu7a6NTWl3KUHMV9jkLAh/Rvtf03NWMHaEDl+E=
 github.com/silas/dag v0.0.0-20220518035006-a7e85ada93c5/go.mod h1:7RTUFBdIRC9nZ7/3RyRNH1bdqIShrDejd1YbLwgPS+I=
+golang.org/x/exp v0.0.0-20230905200255-921286631fa9 h1:GoHiUyI/Tp2nVkLI2mCxVkOjsbSXD66ic0XW0js0R9g=
+golang.org/x/exp v0.0.0-20230905200255-921286631fa9/go.mod h1:S2oDrQGGwySpoQPVqRShND87VCbxmc6bL1Yd2oYrm6k=
 golang.org/x/net v0.8.0 h1:Zrh2ngAOFYneWTAIAPethzeaQLuHwhuBkuV6ZiRnUaQ=
 golang.org/x/sync v0.1.0 h1:wsuoTGHzEhffawBOhz5CYhcrV4IdKZbEyZjBMuTp12o=
 golang.org/x/sync v0.1.0/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
 golang.org/x/sys v0.7.0 h1:3jlCCIQZPdOYu1h8BkNvLz8Kgwtae2cagcG/VamtZRU=
 golang.org/x/sys v0.7.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
+golang.org/x/sys v0.12.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/text v0.8.0 h1:57P1ETyNKtuIjB4SRd15iJxuhj8Gc416Y78H3qgMh68=
 golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
 google.golang.org/genproto v0.0.0-20230410155749-daa745c078e1 h1:KpwkzHKEF7B9Zxg18WzOa7djJ+Ha5DzthMyZYQfEn2A=

logger/slog.go

@@ -0,0 +1,259 @@
+package logger
+
+import (
+	"context"
+	"fmt"
+	"go.unistack.org/micro/v4/options"
+	"log"
+	"sync"
+
+	"golang.org/x/exp/slog"
+)
+
+const (
+	slogName = "slog"
+)
+
+type slogLogger struct {
+	slog   *slog.Logger
+	fields map[string]interface{}
+	opts   Options
+
+	sync.RWMutex
+}
+
+//TODO:!!!!
+
+func (s *slogLogger) Clone(opts ...options.Option) Logger {
+	//TODO implement me
+	panic("implement me")
+}
+
+func (s *slogLogger) V(level Level) bool {
+	//TODO implement me
+	panic("implement me")
+}
+
+func (s *slogLogger) Level(level Level) {
+	//TODO implement me
+	panic("implement me")
+}
+
+func (s *slogLogger) Options() Options {
+	//TODO implement me
+	panic("implement me")
+}
+
+func (s *slogLogger) Fields(fields ...interface{}) Logger {
+	//TODO implement me
+	panic("implement me")
+}
+
+func (s *slogLogger) Trace(ctx context.Context, args ...interface{}) {
+	//TODO implement me
+	panic("implement me")
+}
+
+func (s *slogLogger) Tracef(ctx context.Context, msg string, args ...interface{}) {
+	//TODO implement me
+	panic("implement me")
+}
+
+func (s *slogLogger) Fatalf(ctx context.Context, msg string, args ...interface{}) {
+	//TODO implement me
+	panic("implement me")
+}
+
+func (s *slogLogger) Init(opts ...options.Option) error {
+	for _, o := range opts {
+		if err := o(&s.opts); err != nil {
+			return err
+		}
+	}
+
+	if slog, ok := s.opts.Context.Value(loggerKey{}).(*slog.Logger); ok {
+		s.slog = slog
+		return nil
+	}
+
+	handleOpt := &slog.HandlerOptions{
+		ReplaceAttr: renameTime,
+		Level:       loggerToSlogLevel(s.opts.Level),
+	}
+
+	attr := fieldsToAttr(s.fields)
+
+	handler := slog.NewJSONHandler(s.opts.Out, handleOpt).WithAttrs(attr)
+
+	s.slog = slog.New(handler)
+
+	return nil
+}
+
+func (s *slogLogger) Log(ctx context.Context, lvl Level, args ...any) {
+	slvl := loggerToSlogLevel(lvl)
+
+	s.RLock()
+	attr := fieldsToAttr(s.fields)
+	s.RUnlock()
+
+	msg := fmt.Sprint(args...)
+
+	if lvl == FatalLevel {
+		log.Fatalln(msg, attr)
+	}
+
+	if slvl == slog.LevelError {
+		l := s.slog.With(slog.Any("ProcStatus", "ERROR"), slog.Any("ErrorText", msg))
+		l.LogAttrs(ctx, slvl, "", attr...)
+		return
+	}
+
+	s.slog.LogAttrs(ctx, slvl, msg, attr...)
+}
+
+func (s *slogLogger) Logf(ctx context.Context, lvl Level, format string, args ...any) {
+	slvl := loggerToSlogLevel(lvl)
+
+	s.RLock()
+	attr := fieldsToAttr(s.fields)
+	s.RUnlock()
+
+	msg := fmt.Sprintf(format, args...)
+
+	if lvl == FatalLevel {
+		log.Fatalln(msg, attr)
+	}
+
+	if slvl == slog.LevelError {
+		l := s.slog.With(slog.Any("ProcStatus", "ERROR"), slog.Any("ErrorText", msg))
+		l.LogAttrs(ctx, slvl, "", attr...)
+		return
+	}
+
+	s.slog.LogAttrs(ctx, slvl, msg, attr...)
+}
+
+func (s *slogLogger) Info(ctx context.Context, args ...any) {
+	s.Log(ctx, InfoLevel, args...)
+}
+
+func (s *slogLogger) Infof(ctx context.Context, format string, args ...interface{}) {
+	s.Logf(ctx, InfoLevel, format, args...)
+}
+
+func (s *slogLogger) Debug(ctx context.Context, args ...any) {
+	s.Log(ctx, DebugLevel, args...)
+}
+
+func (s *slogLogger) Debugf(ctx context.Context, format string, args ...any) {
+	s.Logf(ctx, DebugLevel, format, args...)
+}
+
+func (s *slogLogger) Error(ctx context.Context, args ...any) {
+	s.Log(ctx, ErrorLevel, args...)
+}
+
+func (s *slogLogger) Errorf(ctx context.Context, format string, args ...any) {
+	s.Logf(ctx, ErrorLevel, format, args...)
+}
+
+func (s *slogLogger) Fatal(ctx context.Context, args ...any) {
+	s.Log(ctx, FatalLevel, args...)
+}
+
+func (s *slogLogger) Warn(ctx context.Context, args ...any) {
+	s.Log(ctx, WarnLevel, args...)
+}
+
+func (s *slogLogger) Warnf(ctx context.Context, format string, args ...any) {
+	s.Logf(ctx, WarnLevel, format, args...)
+}
+
+func (s *slogLogger) String() string {
+	return slogName
+}
+
+/*
+func (s *slogLogger) Fields(fields map[string]interface{}) Logger {
+	nfields := make(map[string]interface{}, len(s.fields))
+
+	s.Lock()
+	for k, v := range s.fields {
+		nfields[k] = v
+	}
+	s.Unlock()
+
+	for k, v := range fields {
+		nfields[k] = v
+	}
+
+	keys := make([]string, 0, len(nfields))
+	for k := range nfields {
+		keys = append(keys, k)
+	}
+	sort.Strings(keys)
+
+	attr := make([]slog.Attr, 0, len(nfields))
+	for _, k := range keys {
+		attr = append(attr, slog.Any(k, fields[k]))
+	}
+
+	handleOpt := &slog.HandlerOptions{
+		ReplaceAttr: renameTime,
+		Level:       loggerToSlogLevel(s.opts.Level),
+	}
+
+	handler := slog.NewJSONHandler(s.opts.Out, handleOpt).WithAttrs(attr)
+
+	zl := &slogLogger{
+		slog:   slog.New(handler),
+		opts:   s.opts,
+		fields: make(map[string]interface{}),
+	}
+
+	return zl
+}
+
+*/
+
+func NewSlogLogger(opts ...options.Option) (Logger, error) {
+	l := &slogLogger{
+		opts: NewOptions(opts...),
+	}
+	err := l.Init()
+	return l, err
+}
+
+func renameTime(groups []string, a slog.Attr) slog.Attr {
+	if a.Key == slog.TimeKey {
+		a.Key = "@timestamp"
+	}
+	if a.Key == slog.MessageKey {
+		a.Key = "message"
+	}
+
+	return a
+}
+
+func loggerToSlogLevel(level Level) slog.Level {
+	switch level {
+	case TraceLevel, DebugLevel:
+		return slog.LevelDebug
+	case WarnLevel:
+		return slog.LevelWarn
+	case ErrorLevel, FatalLevel:
+		return slog.LevelError
+	default:
+		return slog.LevelInfo
+	}
+}
+
+func fieldsToAttr(m map[string]any) []slog.Attr {
+	data := make([]slog.Attr, 0, len(m))
+	for k, v := range m {
+		data = append(data, slog.Any(k, v))
+	}
+
+	return data
+}