75 lines
1.2 KiB
Go
75 lines
1.2 KiB
Go
// Package bytes provides a bytes codec which does not encode or decode anything
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package bytes
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import (
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"fmt"
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"io"
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"io/ioutil"
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"github.com/asim/go-micro/v3/codec"
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)
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type Codec struct {
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Conn io.ReadWriteCloser
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}
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// Frame gives us the ability to define raw data to send over the pipes
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type Frame struct {
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Data []byte
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}
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func (c *Codec) ReadHeader(m *codec.Message, t codec.MessageType) error {
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return nil
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}
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func (c *Codec) ReadBody(b interface{}) error {
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// read bytes
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buf, err := ioutil.ReadAll(c.Conn)
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if err != nil {
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return err
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}
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switch v := b.(type) {
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case *[]byte:
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*v = buf
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case *Frame:
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v.Data = buf
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default:
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return fmt.Errorf("failed to read body: %v is not type of *[]byte", b)
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}
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return nil
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}
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func (c *Codec) Write(m *codec.Message, b interface{}) error {
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var v []byte
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switch vb := b.(type) {
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case nil:
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return nil
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case *Frame:
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v = vb.Data
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case *[]byte:
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v = *vb
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case []byte:
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v = vb
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default:
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return fmt.Errorf("failed to write: %v is not type of *[]byte or []byte", b)
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}
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_, err := c.Conn.Write(v)
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return err
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}
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func (c *Codec) Close() error {
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return c.Conn.Close()
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}
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func (c *Codec) String() string {
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return "bytes"
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}
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func NewCodec(c io.ReadWriteCloser) codec.Codec {
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return &Codec{
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Conn: c,
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}
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}
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