/
writer.go
56 lines (47 loc) · 1.1 KB
/
writer.go
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package handler
import (
"io"
"github.com/dounetio/slog"
)
// IOWriterHandler definition
type IOWriterHandler struct {
slog.LevelFormattable
Output io.Writer
}
// NewIOWriter create a new instance
func NewIOWriter(out io.Writer, levels []slog.Level) *IOWriterHandler {
return NewIOWriterHandler(out, levels)
}
// NewIOWriterHandler create new IOWriterHandler
//
// Usage:
//
// buf := new(bytes.Buffer)
// h := handler.NewIOWriterHandler(&buf, slog.AllLevels)
//
// f, err := os.OpenFile("my.log", ...)
// h := handler.NewIOWriterHandler(f, slog.AllLevels)
func NewIOWriterHandler(out io.Writer, levels []slog.Level) *IOWriterHandler {
return &IOWriterHandler{
Output: out,
// init log levels
LevelFormattable: slog.NewLvsFormatter(levels),
}
}
// Close the handler
func (h *IOWriterHandler) Close() error {
return nil
}
// Flush the handler
func (h *IOWriterHandler) Flush() error {
return nil
}
// Handle log record
func (h *IOWriterHandler) Handle(record *slog.Record) error {
bts, err := h.Formatter().Format(record)
if err != nil {
return err
}
_, err = h.Output.Write(bts)
return err
}