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51 lines
922 B
51 lines
922 B
package log
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import (
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"bytes"
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"fmt"
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"io"
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"log"
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"sync"
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)
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var _ Logger = (*stdLogger)(nil)
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type stdLogger struct {
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log *log.Logger
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pool *sync.Pool
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}
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// NewStdLogger new a logger with writer.
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func NewStdLogger(w io.Writer) Logger {
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return &stdLogger{
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log: log.New(w, "", 0),
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pool: &sync.Pool{
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New: func() interface{} {
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return new(bytes.Buffer)
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},
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},
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}
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}
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// Log print the kv pairs log.
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func (l *stdLogger) Log(level Level, keyvals ...interface{}) error {
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if len(keyvals) == 0 {
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return nil
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}
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if (len(keyvals) & 1) == 1 {
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keyvals = append(keyvals, "KEYVALS UNPAIRED")
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}
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buf := l.pool.Get().(*bytes.Buffer)
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buf.WriteString(level.String())
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for i := 0; i < len(keyvals); i += 2 {
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_, _ = fmt.Fprintf(buf, " %s=%v", keyvals[i], keyvals[i+1])
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}
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_ = l.log.Output(4, buf.String()) //nolint:gomnd
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buf.Reset()
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l.pool.Put(buf)
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return nil
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}
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func (l *stdLogger) Close() error {
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return nil
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}
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