Make json/protobuf codecs

codec/proto/proto.go

@@ -0,0 +1,49 @@
+// Package proto provides a proto codec
+package proto
+
+import (
+	"io"
+	"io/ioutil"
+
+	"github.com/golang/protobuf/proto"
+	"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 {
+	buf, err := ioutil.ReadAll(c.Conn)
+	if err != nil {
+		return err
+	}
+	return proto.Unmarshal(buf, b.(proto.Message))
+}
+
+func (c *Codec) Write(m *codec.Message, b interface{}) error {
+	buf, err := proto.Marshal(b.(proto.Message))
+	if err != nil {
+		return err
+	}
+	_, err = c.Conn.Write(buf)
+	return err
+}
+
+func (c *Codec) Close() error {
+	return c.Conn.Close()
+}
+
+func (c *Codec) String() string {
+	return "proto"
+}
+
+func NewCodec(c io.ReadWriteCloser) codec.Codec {
+	return &Codec{
+		Conn: c,
+	}
+}