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55 lines
1.0 KiB
Go
55 lines
1.0 KiB
Go
2 years ago
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package log
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import (
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"io"
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)
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//Handler writes logs to somewhere
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type Handler interface {
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Write(p []byte) (n int, err error)
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Close() error
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}
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// StreamHandler writes logs to a specified io Writer, maybe stdout, stderr, etc...
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type StreamHandler struct {
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w io.Writer
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}
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// NewStreamHandler creates a StreamHandler
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func NewStreamHandler(w io.Writer) (*StreamHandler, error) {
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h := new(StreamHandler)
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h.w = w
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return h, nil
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}
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// Write implements Handler interface
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func (h *StreamHandler) Write(b []byte) (n int, err error) {
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return h.w.Write(b)
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}
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// Close implements Handler interface
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func (h *StreamHandler) Close() error {
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return nil
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}
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// NullHandler does nothing, it discards anything.
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type NullHandler struct {
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}
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// NewNullHandler creates a NullHandler
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func NewNullHandler() (*NullHandler, error) {
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return new(NullHandler), nil
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}
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// // Write implements Handler interface
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func (h *NullHandler) Write(b []byte) (n int, err error) {
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return len(b), nil
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}
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// Close implements Handler interface
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func (h *NullHandler) Close() error {
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return nil
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}
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