64 lines
1.3 KiB
Go
64 lines
1.3 KiB
Go
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package logger
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import (
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"context"
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"io"
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"log/slog"
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"sync"
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)
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type MyJsonHandler struct {
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output io.Writer
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mu sync.Mutex
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jsonHandler slog.Handler
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}
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var stackChan = make(chan string, 100)
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func newMyJsonHandler(output io.Writer, opts *slog.HandlerOptions) *MyJsonHandler {
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if opts == nil {
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opts = &slog.HandlerOptions{}
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}
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ra := opts.ReplaceAttr
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opts.ReplaceAttr = func(groups []string, a slog.Attr) slog.Attr {
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if a.Key == "stack" {
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stackChan <- a.Value.String()
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return slog.Attr{}
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} else {
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if ra != nil {
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return ra(groups, a)
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} else {
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return a
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}
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}
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}
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return &MyJsonHandler{output: output, mu: sync.Mutex{}, jsonHandler: slog.NewJSONHandler(output, opts)}
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}
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func (s *MyJsonHandler) Enabled(ctx context.Context, level slog.Level) bool {
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return s.jsonHandler.Enabled(ctx, level)
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}
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func (s *MyJsonHandler) Handle(ctx context.Context, record slog.Record) error {
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err := s.jsonHandler.Handle(ctx, record)
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if err != nil {
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return err
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}
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select {
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case stack := <-stackChan:
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s.mu.Lock()
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defer s.mu.Unlock()
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_, err = s.output.Write([]byte(stack))
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default:
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}
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return err
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}
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func (s *MyJsonHandler) WithAttrs(attrs []slog.Attr) slog.Handler {
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return s.jsonHandler.WithAttrs(attrs)
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}
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func (s *MyJsonHandler) WithGroup(name string) slog.Handler {
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return s.jsonHandler.WithGroup(name)
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}
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