broker: add ErrorHandler

Signed-off-by: Vasiliy Tolstov <v.tolstov@unistack.org>

broker/broker.go

@@ -41,11 +41,11 @@ type Broker interface {
 	// Disconnect disconnect from broker
 	Disconnect(ctx context.Context) error
 	// NewMessage create new broker message to publish.
-	NewMessage(ctx context.Context, hdr metadata.Metadata, body interface{}, opts ...MessageOption) (Message, error)
+	NewMessage(ctx context.Context, hdr metadata.Metadata, body any, opts ...MessageOption) (Message, error)
 	// Publish message to broker topic
 	Publish(ctx context.Context, topic string, messages ...Message) error
 	// Subscribe subscribes to topic message via handler
-	Subscribe(ctx context.Context, topic string, handler interface{}, opts ...SubscribeOption) (Subscriber, error)
+	Subscribe(ctx context.Context, topic string, handler any, opts ...SubscribeOption) (Subscriber, error)
 	// String type of broker
 	String() string
 	// Live returns broker liveness
@@ -59,7 +59,7 @@ type Broker interface {
 type (
 	FuncPublish   func(ctx context.Context, topic string, messages ...Message) error
 	HookPublish   func(next FuncPublish) FuncPublish
-	FuncSubscribe func(ctx context.Context, topic string, handler interface{}, opts ...SubscribeOption) (Subscriber, error)
+	FuncSubscribe func(ctx context.Context, topic string, handler any, opts ...SubscribeOption) (Subscriber, error)
 	HookSubscribe func(next FuncSubscribe) FuncSubscribe
 )
 
@@ -75,7 +75,7 @@ type Message interface {
 	Body() []byte
 	// Unmarshal try to decode message body to dst.
 	// This is helper method that uses codec.Unmarshal.
-	Unmarshal(dst interface{}, opts ...codec.Option) error
+	Unmarshal(dst any, opts ...codec.Option) error
 	// Ack acknowledge message if supported.
 	Ack() error
 }

broker/options.go

@@ -18,7 +18,6 @@ import (
 type Options struct {
 	// Name holds the broker name
 	Name string
-
 	// Tracer used for tracing
 	Tracer tracer.Tracer
 	// Register can be used for clustering
@@ -31,23 +30,20 @@ type Options struct {
 	Meter meter.Meter
 	// Context holds external options
 	Context context.Context
-
 	// Wait waits for a collection of goroutines to finish
 	Wait *sync.WaitGroup
 	// TLSConfig holds tls.TLSConfig options
 	TLSConfig *tls.Config
-
 	// Addrs holds the broker address
 	Addrs []string
-	// Hooks can be run before broker Publish/BatchPublish and
-	// Subscribe/BatchSubscribe methods
+	// Hooks can be run before broker Publishing and message processing in Subscribe
 	Hooks options.Hooks
-
 	// GracefulTimeout contains time to wait to finish in flight requests
 	GracefulTimeout time.Duration
-
 	// ContentType will be used if no content-type set when creating message
 	ContentType string
+	// ErrorHandler specifies handler for all broker errors handling subscriber
+	ErrorHandler any
 }
 
 // NewOptions create new Options
@@ -93,6 +89,13 @@ func ContentType(ct string) Option {
 	}
 }
 
+// ErrorHandler handles errors in broker
+func ErrorHandler(h any) Option {
+	return func(o *Options) {
+		o.ErrorHandler = h
+	}
+}
+
 // MessageOptions struct
 type MessageOptions struct {
 	// ContentType for message body

logger/options.go

@@ -8,6 +8,7 @@ import (
 	"slices"
 	"time"
 
+	"go.unistack.org/micro/v4/logger"
 	"go.unistack.org/micro/v4/meter"
 )
 
@@ -42,8 +43,10 @@ type Options struct {
 	Fields []interface{}
 	// ContextAttrFuncs contains funcs that executed before log func on context
 	ContextAttrFuncs []ContextAttrFunc
-	// callerSkipCount number of frmaes to skip
+	// callerSkipCount number of frames to skip
 	CallerSkipCount int
+	// AddCaller enables to get caller
+	AddCaller bool
 	// The logging level the logger should log
 	Level Level
 	// AddSource enabled writing source file and position in log
@@ -83,6 +86,12 @@ func NewOptions(opts ...Option) Options {
 	return options
 }
 
+func WithCallerEnabled(b bool) logger.Option {
+	return func(o *Options) {
+		o.AddCaller = b
+	}
+}
+
 // WithFatalFinalizers set logger.Fatal finalizers
 func WithFatalFinalizers(fncs ...func(context.Context)) Option {
 	return func(o *Options) {

logger/slog/slog.go

@@ -37,11 +37,11 @@ var (
 
 type wrapper struct {
 	h     slog.Handler
-	level atomic.Int64
+	level int64
 }
 
 func (h *wrapper) Enabled(ctx context.Context, level slog.Level) bool {
-	return level >= slog.Level(int(h.level.Load()))
+	return level >= slog.Level(atomic.LoadInt64(&h.level))
 }
 
 func (h *wrapper) Handle(ctx context.Context, rec slog.Record) error {
@@ -49,11 +49,17 @@ func (h *wrapper) Handle(ctx context.Context, rec slog.Record) error {
 }
 
 func (h *wrapper) WithAttrs(attrs []slog.Attr) slog.Handler {
-	return h.h.WithAttrs(attrs)
+	return &wrapper{
+		h:     h.h.WithAttrs(attrs),
+		level: atomic.LoadInt64(&h.level),
+	}
 }
 
 func (h *wrapper) WithGroup(name string) slog.Handler {
-	return h.h.WithGroup(name)
+	return &wrapper{
+		h:     h.h.WithGroup(name),
+		level: atomic.LoadInt64(&h.level),
+	}
 }
 
 func (s *slogLogger) renameAttr(_ []string, a slog.Attr) slog.Attr {
@@ -115,10 +121,13 @@ func (s *slogLogger) Clone(opts ...logger.Option) logger.Logger {
 
 	attrs, _ := s.argsAttrs(options.Fields)
 	l := &slogLogger{
-		handler: &wrapper{h: s.handler.h.WithAttrs(attrs)},
-		opts:    options,
+		handler: &wrapper{
+			h:     s.handler.h.WithAttrs(attrs),
+			level: atomic.LoadInt64(&s.handler.level),
+		},
+		opts: options,
 	}
-	l.handler.level.Store(int64(loggerToSlogLevel(options.Level)))
+	atomic.StoreInt64(&l.handler.level, int64(loggerToSlogLevel(options.Level)))
 
 	return l
 }
@@ -131,9 +140,9 @@ func (s *slogLogger) V(level logger.Level) bool {
 }
 
 func (s *slogLogger) Level(level logger.Level) {
+	atomic.StoreInt64(&s.handler.level, int64(loggerToSlogLevel(level)))
 	s.mu.Lock()
 	s.opts.Level = level
-	s.handler.level.Store(int64(loggerToSlogLevel(level)))
 	s.mu.Unlock()
 }
 
@@ -154,8 +163,11 @@ func (s *slogLogger) Fields(fields ...interface{}) logger.Logger {
 	}
 
 	attrs, _ := s.argsAttrs(fields)
-	l.handler = &wrapper{h: s.handler.h.WithAttrs(attrs)}
-	l.handler.level.Store(int64(loggerToSlogLevel(l.opts.Level)))
+	l.handler = &wrapper{
+		h:     s.handler.h.WithAttrs(attrs),
+		level: atomic.LoadInt64(&s.handler.level),
+	}
+	atomic.StoreInt64(&l.handler.level, int64(loggerToSlogLevel(l.opts.Level)))
 
 	return l
 }
@@ -200,8 +212,11 @@ func (s *slogLogger) Init(opts ...logger.Option) error {
 		h = slog.NewJSONHandler(s.opts.Out, handleOpt)
 	}
 
-	s.handler = &wrapper{h: h.WithAttrs(attrs)}
-	s.handler.level.Store(int64(loggerToSlogLevel(s.opts.Level)))
+	s.handler = &wrapper{
+		h:     h.WithAttrs(attrs),
+		level: atomic.LoadInt64(&s.handler.level),
+	}
+	atomic.StoreInt64(&s.handler.level, int64(loggerToSlogLevel(s.opts.Level)))
 	s.mu.Unlock()
 
 	return nil
@@ -290,10 +305,17 @@ func (s *slogLogger) printLog(ctx context.Context, lvl logger.Level, msg string,
 		}
 	}
 
-	var pcs [1]uintptr
-	runtime.Callers(s.opts.CallerSkipCount, pcs[:]) // skip [Callers, printLog, LogLvlMethod]
-	r := slog.NewRecord(s.opts.TimeFunc(), loggerToSlogLevel(lvl), msg, pcs[0])
+	var pcs uintptr
+
+	if s.opts.AddCaller {
+		var caller [1]uintptr
+		runtime.Callers(s.opts.CallerSkipCount, caller[:]) // skip [Callers, printLog, LogLvlMethod]
+		pcs = caller[0]
+	}
+
+	r := slog.NewRecord(s.opts.TimeFunc(), loggerToSlogLevel(lvl), msg, pcs)
 	r.AddAttrs(attrs...)
+
 	_ = s.handler.Handle(ctx, r)
 }