90 lines
1.9 KiB
Go
90 lines
1.9 KiB
Go
package server
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import (
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"bytes"
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"fmt"
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"github.com/myodc/go-micro/transport"
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rpc "github.com/youtube/vitess/go/rpcplus"
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js "github.com/youtube/vitess/go/rpcplus/jsonrpc"
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pb "github.com/youtube/vitess/go/rpcplus/pbrpc"
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)
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type rpcPlusCodec struct {
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socket transport.Socket
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codec rpc.ServerCodec
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req *transport.Message
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buf *readWriteCloser
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}
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type readWriteCloser struct {
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wbuf *bytes.Buffer
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rbuf *bytes.Buffer
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}
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func (rwc *readWriteCloser) Read(p []byte) (n int, err error) {
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return rwc.rbuf.Read(p)
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}
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func (rwc *readWriteCloser) Write(p []byte) (n int, err error) {
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return rwc.wbuf.Write(p)
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}
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func (rwc *readWriteCloser) Close() error {
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rwc.rbuf.Reset()
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rwc.wbuf.Reset()
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return nil
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}
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func newRpcPlusCodec(req *transport.Message, socket transport.Socket) rpc.ServerCodec {
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r := &rpcPlusCodec{
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socket: socket,
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req: req,
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buf: &readWriteCloser{
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rbuf: bytes.NewBuffer(req.Body),
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wbuf: bytes.NewBuffer(nil),
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},
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}
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switch req.Header["Content-Type"] {
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case "application/octet-stream":
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r.codec = pb.NewServerCodec(r.buf)
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case "application/json":
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r.codec = js.NewServerCodec(r.buf)
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}
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return r
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}
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func (c *rpcPlusCodec) ReadRequestHeader(r *rpc.Request) error {
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if c.codec == nil {
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return fmt.Errorf("unsupported content type %s", c.req.Header["Content-Type"])
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}
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return c.codec.ReadRequestHeader(r)
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}
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func (c *rpcPlusCodec) ReadRequestBody(r interface{}) error {
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return c.codec.ReadRequestBody(r)
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}
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func (c *rpcPlusCodec) WriteResponse(r *rpc.Response, body interface{}, last bool) error {
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if c.codec == nil {
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return fmt.Errorf("unsupported request type: %s", c.req.Header["Content-Type"])
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}
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c.buf.wbuf.Reset()
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if err := c.codec.WriteResponse(r, body, last); err != nil {
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return err
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}
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return c.socket.Send(&transport.Message{
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Header: map[string]string{"Content-Type": c.req.Header["Content-Type"]},
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Body: c.buf.wbuf.Bytes(),
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})
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}
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func (c *rpcPlusCodec) Close() error {
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c.buf.Close()
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return c.socket.Close()
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}
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