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package logging
import (
"fmt"
"io"
"log/slog"
"sync"
)
type WriterSink struct {
Writer io.Writer
mu sync.Mutex
Encoder Encoder
Level slog.Level
ReplaceAttr func(groups []string, a slog.Attr) slog.Attr
}
var _ Sink = &WriterSink{}
func NewWriterSink(w io.Writer, encoder Encoder, level slog.Leveler, replaceAttr func(groups []string, a slog.Attr) slog.Attr) *WriterSink {
return &WriterSink{
Writer: w,
Encoder: encoder,
Level: level.Level(),
ReplaceAttr: replaceAttr,
}
}
func (s *WriterSink) Enabled(level slog.Level) bool {
return s.Level <= level
}
func (s *WriterSink) Append(r slog.Record) error {
it := RecordAll(r, s.ReplaceAttr)
out, err := s.Encoder(it)
if err != nil {
return fmt.Errorf("failed to encode: %w", err)
}
s.mu.Lock()
defer s.mu.Unlock()
_, err = fmt.Fprintln(s.Writer, out)
return err
}
|
