86 lines
1.8 KiB
Go
86 lines
1.8 KiB
Go
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package client
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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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client transport.Client
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codec rpc.ClientCodec
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req *transport.Message
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wbuf *bytes.Buffer
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rbuf *bytes.Buffer
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}
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func newRpcPlusCodec(req *transport.Message, client transport.Client) *rpcPlusCodec {
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return &rpcPlusCodec{
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req: req,
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client: client,
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wbuf: bytes.NewBuffer(nil),
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rbuf: bytes.NewBuffer(nil),
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}
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}
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func (c *rpcPlusCodec) WriteRequest(req *rpc.Request, body interface{}) error {
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c.wbuf.Reset()
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buf := &buffer{c.wbuf}
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var cc rpc.ClientCodec
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switch c.req.Header["Content-Type"] {
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case "application/octet-stream":
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cc = pb.NewClientCodec(buf)
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case "application/json":
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cc = js.NewClientCodec(buf)
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default:
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return fmt.Errorf("unsupported request type: %s", c.req.Header["Content-Type"])
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}
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if err := cc.WriteRequest(req, body); err != nil {
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return err
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}
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c.req.Body = c.wbuf.Bytes()
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return c.client.Send(c.req)
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}
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func (c *rpcPlusCodec) ReadResponseHeader(r *rpc.Response) error {
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var m transport.Message
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if err := c.client.Recv(&m); err != nil {
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return err
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}
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c.rbuf.Reset()
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c.rbuf.Write(m.Body)
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buf := &buffer{c.rbuf}
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switch m.Header["Content-Type"] {
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case "application/octet-stream":
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c.codec = pb.NewClientCodec(buf)
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case "application/json":
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c.codec = js.NewClientCodec(buf)
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default:
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return fmt.Errorf("%s", string(m.Body))
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}
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return c.codec.ReadResponseHeader(r)
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}
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func (c *rpcPlusCodec) ReadResponseBody(r interface{}) error {
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return c.codec.ReadResponseBody(r)
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}
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func (c *rpcPlusCodec) Close() error {
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c.rbuf.Reset()
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c.wbuf.Reset()
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return c.client.Close()
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}
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