micro/codec/bytes/bytes.go
2019-01-14 21:30:43 +00:00

65 lines
1.1 KiB
Go

// Package bytes provides a bytes codec which does not encode or decode anything
package bytes
import (
"fmt"
"io"
"io/ioutil"
"github.com/micro/go-micro/codec"
)
type Codec struct {
Conn io.ReadWriteCloser
}
func (c *Codec) ReadHeader(m *codec.Message, t codec.MessageType) error {
return nil
}
func (c *Codec) ReadBody(b interface{}) error {
v, ok := b.(*[]byte)
if !ok {
return fmt.Errorf("failed to read body: %v is not type of *[]byte", b)
}
// read bytes
buf, err := ioutil.ReadAll(c.Conn)
if err != nil {
return err
}
// set bytes
*v = buf
return nil
}
func (c *Codec) Write(m *codec.Message, b interface{}) error {
var v []byte
switch b.(type) {
case *[]byte:
ve := b.(*[]byte)
v = *ve
case []byte:
v = b.([]byte)
default:
return fmt.Errorf("failed to write: %v is not type of *[]byte or []byte", b)
}
_, err := c.Conn.Write(v)
return err
}
func (c *Codec) Close() error {
return c.Conn.Close()
}
func (c *Codec) String() string {
return "bytes"
}
func NewCodec(c io.ReadWriteCloser) codec.Codec {
return &Codec{
Conn: c,
}
}