98 lines
2.1 KiB
Go
98 lines
2.1 KiB
Go
package server
|
|
|
|
import (
|
|
"bytes"
|
|
|
|
"github.com/micro/go-micro/codec"
|
|
"github.com/micro/go-micro/codec/jsonrpc"
|
|
"github.com/micro/go-micro/codec/protorpc"
|
|
"github.com/micro/go-micro/transport"
|
|
rpc "github.com/youtube/vitess/go/rpcplus"
|
|
)
|
|
|
|
type rpcPlusCodec struct {
|
|
socket transport.Socket
|
|
codec codec.Codec
|
|
|
|
req *transport.Message
|
|
buf *readWriteCloser
|
|
}
|
|
|
|
type readWriteCloser struct {
|
|
wbuf *bytes.Buffer
|
|
rbuf *bytes.Buffer
|
|
}
|
|
|
|
var (
|
|
defaultCodecs = map[string]codec.NewCodec{
|
|
"application/json": jsonrpc.NewCodec,
|
|
"application/json-rpc": jsonrpc.NewCodec,
|
|
"application/protobuf": protorpc.NewCodec,
|
|
"application/proto-rpc": protorpc.NewCodec,
|
|
"application/octet-stream": protorpc.NewCodec,
|
|
}
|
|
)
|
|
|
|
func (rwc *readWriteCloser) Read(p []byte) (n int, err error) {
|
|
return rwc.rbuf.Read(p)
|
|
}
|
|
|
|
func (rwc *readWriteCloser) Write(p []byte) (n int, err error) {
|
|
return rwc.wbuf.Write(p)
|
|
}
|
|
|
|
func (rwc *readWriteCloser) Close() error {
|
|
rwc.rbuf.Reset()
|
|
rwc.wbuf.Reset()
|
|
return nil
|
|
}
|
|
|
|
func newRpcPlusCodec(req *transport.Message, socket transport.Socket, c codec.NewCodec) rpc.ServerCodec {
|
|
rwc := &readWriteCloser{
|
|
rbuf: bytes.NewBuffer(req.Body),
|
|
wbuf: bytes.NewBuffer(nil),
|
|
}
|
|
r := &rpcPlusCodec{
|
|
buf: rwc,
|
|
codec: c(rwc),
|
|
req: req,
|
|
socket: socket,
|
|
}
|
|
return r
|
|
}
|
|
|
|
func (c *rpcPlusCodec) ReadRequestHeader(r *rpc.Request) error {
|
|
var m codec.Message
|
|
err := c.codec.ReadHeader(&m, codec.Request)
|
|
r.ServiceMethod = m.Method
|
|
r.Seq = m.Id
|
|
return err
|
|
}
|
|
|
|
func (c *rpcPlusCodec) ReadRequestBody(b interface{}) error {
|
|
return c.codec.ReadBody(b)
|
|
}
|
|
|
|
func (c *rpcPlusCodec) WriteResponse(r *rpc.Response, body interface{}, last bool) error {
|
|
c.buf.wbuf.Reset()
|
|
m := &codec.Message{
|
|
Method: r.ServiceMethod,
|
|
Id: r.Seq,
|
|
Error: r.Error,
|
|
Type: codec.Response,
|
|
}
|
|
if err := c.codec.Write(m, body); err != nil {
|
|
return err
|
|
}
|
|
return c.socket.Send(&transport.Message{
|
|
Header: map[string]string{"Content-Type": c.req.Header["Content-Type"]},
|
|
Body: c.buf.wbuf.Bytes(),
|
|
})
|
|
}
|
|
|
|
func (c *rpcPlusCodec) Close() error {
|
|
c.buf.Close()
|
|
c.codec.Close()
|
|
return c.socket.Close()
|
|
}
|