rpc/encoder_selector.go

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2017-10-25 14:52:47 +00:00
package rpc
import (
"io"
"net/http"
)
// Encoder interface contains the encoder for http response.
// Eg. gzip, flate compressions.
type Encoder interface {
Encode(w http.ResponseWriter) io.Writer
}
type encoder struct {
}
func (_ *encoder) Encode(w http.ResponseWriter) io.Writer {
return w
}
var DefaultEncoder = &encoder{}
// EncoderSelector interface provides a way to select encoder using the http
// request. Typically people can use this to check HEADER of the request and
// figure out client capabilities.
// Eg. "Accept-Encoding" tells about supported compressions.
type EncoderSelector interface {
Select(r *http.Request) Encoder
}
type encoderSelector struct {
}
func (_ *encoderSelector) Select(_ *http.Request) Encoder {
return DefaultEncoder
}
var DefaultEncoderSelector = &encoderSelector{}