func (c *clientCodec) ReadResponseHeader(r *rpc.Response) error {
// If return err:
// - io.EOF will became ErrShutdown or io.ErrUnexpectedEOF
// - it will be returned as is for all pending calls
// - client will be shutdown
// So, return io.EOF as is, return *Error for all other errors.
if err := c.dec.Decode(&c.resp); err != nil {
if err == io.EOF {
return err
}
return NewError(errInternal.Code, err.Error())
}
if c.resp.ID == nil {
return c.resp.Error
}
c.mutex.Lock()
r.ServiceMethod = c.pending[*c.resp.ID]
delete(c.pending, *c.resp.ID)
c.mutex.Unlock()
r.Error = ""
r.Seq = *c.resp.ID
if c.resp.Error != nil {
r.Error = c.resp.Error.Error()
}
return nil
}
func (c *clientCodec) ReadResponseHeader(r *rpc.Response) error {
c.resp.reset()
if err := c.dec.Decode(&c.resp); err != nil {
return err
}
c.mutex.Lock()
r.ServiceMethod = c.pending[c.resp.Id]
delete(c.pending, c.resp.Id)
c.mutex.Unlock()
r.Error = ""
r.Seq = c.resp.Id
if c.resp.Error != nil {
x, ok := c.resp.Error.(string)
if !ok {
return fmt.Errorf("invalid error %v", c.resp.Error)
}
if x == "" {
x = "unspecified error"
}
r.Error = x
}
return nil
}
func (c *clientCodec) ReadResponseHeader(r *rpc.Response) error {
data, err := ReadRpc(c.rwc)
if err != nil {
return err
}
rsp := &PbRpcResponse{}
err = proto.Unmarshal(data, rsp)
if err != nil {
return err
}
c.rsp = rsp
r.Seq = rsp.GetId()
if rsp.GetResult() == nil {
if rsp.GetError() == "" {
r.Error = "Unknown error occurred"
} else {
r.Error = rsp.GetError()
}
}
return nil
}
func (c *clientCodec) ReadResponseHeader(r *rpc.Response) error {
msg := <-c.msgs
c.resp.reset()
if err := json.Unmarshal(msg.Body, &c.resp); err != nil {
return err
}
seq, err := strconv.ParseUint(msg.CorrelationId, 0, 64)
if err != nil {
return err
}
c.Lock()
r.Seq = seq
r.ServiceMethod = c.pending[seq]
delete(c.pending, seq)
c.Unlock()
r.Error = ""
if c.resp.Error != nil || c.resp.Result == nil {
x, ok := c.resp.Error.(string)
if !ok {
return fmt.Errorf("invalid error %v", c.resp.Error)
}
if x == "" {
x = "unspecified error"
}
r.Error = x
}
return nil
}
func (c *HTTPCodec) ReadResponseHeader(resp *rpc.Response) (err error) {
req := <-c.replyQueue
resp.Seq = req.seq
if req.err != nil {
resp.Error = req.err.Error()
} else {
if e2 := req.codec.ReadStatus(req.reply, resp); e2 != nil {
resp.Error = e2.Error()
}
}
c.bodyQueue <- req
return
}
func (c *clientCodec) ReadResponseHeader(response *rpc.Response) error {
if c.enableOneway {
select {
case ow := <-c.onewayRequests:
response.ServiceMethod = ow.method
response.Seq = ow.seq
return nil
case _ = <-c.twowayRequests:
}
}
name, messageType, seq, err := c.conn.ReadMessageBegin()
if err != nil {
return err
}
response.ServiceMethod = name
response.Seq = uint64(seq)
if messageType == MessageTypeException {
exception := &ApplicationException{}
if err := DecodeStruct(c.conn, exception); err != nil {
return err
}
response.Error = exception.String()
return c.conn.ReadMessageEnd()
}
return nil
}
func (c *clientCodec) ReadResponseHeader(r *rpc.Response) (err error) {
c.bufs.Reset()
// Read message
parts, err := c.sock.RecvMultipart(0)
if err != nil {
return
} else if len(parts) != 2 {
err = errors.New("Unexpected number of parts to reply: " + fmt.Sprintf("%d", len(parts)))
return
}
// log.Println("Client recieved multipart mesage:", Stringify(parts))
hdr := parts[0]
data := parts[1]
c.bufs.body.SetBuf(data)
h := new(Header)
c.bufs.header.SetBuf(hdr)
err = c.bufs.header.Unmarshal(h)
if err != nil {
return
}
r.Seq = h.GetId()
r.ServiceMethod = h.GetServiceMethod()
r.Error = h.GetError()
// log.Println("Client recieved service response:", r)
return nil
}
// Returns an error if response code != 200
func StandardStatusDecoder(resp *http.Response, rpcResp *rpc.Response) error {
if resp.StatusCode != 200 {
rpcResp.Error = fmt.Sprintf("Server returned HTTP response: %s", resp.Status)
}
return nil
}
func (self *RPCServer) Error(s string) error {
var r rpc.Response
r.ServiceMethod = self.lastServiceMethod
r.Seq = self.lastSeq
r.Error = s
return self.codec.WriteResponse(&r, nil)
}
func (self *RPCServer) Send(obj interface{}) error {
var r rpc.Response
r.ServiceMethod = self.lastServiceMethod
r.Seq = self.lastSeq
r.Error = ""
return self.codec.WriteResponse(&r, obj)
}
func (codec *clientCodec) ReadResponseHeader(response *rpc.Response) (err error) {
seq := <-codec.ready
httpResponse := codec.responses[seq]
if httpResponse.StatusCode < 200 || httpResponse.StatusCode >= 300 {
return fmt.Errorf("request error: bad status code - %d", httpResponse.StatusCode)
}
respData, err := ioutil.ReadAll(httpResponse.Body)
if err != nil {
return err
}
httpResponse.Body.Close()
resp := NewResponse(respData)
if resp.Failed() {
response.Error = fmt.Sprintf("%v", resp.Err())
}
codec.response = resp
response.Seq = seq
delete(codec.responses, seq)
return nil
}
func (self *RPCServer) SendOkay() error {
var r rpc.Response
r.ServiceMethod = self.lastServiceMethod
r.Seq = self.lastSeq
r.Error = ""
return self.codec.WriteResponse(&r, "OK")
}
func (c *clientCodec) ReadResponseHeader(rpcres *rpc.Response) error {
f, err := read(c.r)
if err != nil {
return err
}
res := &Response{}
if err := proto.Unmarshal(f, res); err != nil {
return err
}
c.mutex.Lock()
p, ok := c.pending[res.GetId()]
if !ok {
c.mutex.Unlock()
return errors.New("invalid sequence number in response")
}
c.res = res
delete(c.pending, res.GetId())
c.mutex.Unlock()
rpcres.Seq = p.Seq
rpcres.ServiceMethod = p.ServiceMethod
rpcres.Error = res.GetError()
return nil
}
func (c *clientCodec) ReadResponseHeader(r *rpc.Response) error {
var header wire.Header
if err := readProto(c.r, &header); err != nil {
return err
}
c.mutex.Lock()
r.ServiceMethod = c.pending[header.GetId()]
delete(c.pending, header.GetId())
c.mutex.Unlock()
r.Error = ""
r.Seq = header.GetId()
if header.Error != nil {
r.Error = header.GetError()
}
return nil
}
func (c *clientCodec) ReadResponseHeader(r *rpc.Response) error {
if err := c.readResponseHeader(&c.respHeader); err != nil {
return err
}
r.Seq = c.respHeader.Id
r.ServiceMethod = c.respHeader.GetMethod()
r.Error = c.respHeader.Error
return nil
}
func (c *clientCodec) ReadResponseHeader(r *rpc.Response) error {
var rsp protorpcpb.Response
if err := readFrame(c.rwc, &rsp); err != nil {
return err
}
r.ServiceMethod = rsp.GetMethod()
r.Seq = rsp.GetSeq()
r.Error = rsp.GetErr()
return nil
}
func writeResponse(c *serverCodec) error {
head := rpc.Response{}
head.ServiceMethod = "TestFunc"
head.Seq = 2
head.Error = "call failed"
body := testpb.Result{}
body.Title = proto.String("www.zhihu.com")
return c.WriteResponse(&head, &body)
}
func (c *clientHttpCodec) ReadResponseHeader(r *rpc.Response) error {
c.resp.reset()
//read http header
tp := textproto.NewReader(c.r)
line, err := tp.ReadLine()
if err != nil {
if err == io.EOF {
err = io.ErrUnexpectedEOF
}
return err
}
f := strings.SplitN(line, " ", 3)
if len(f) < 2 {
return errors.New("malformed HTTP response")
}
_, err = tp.ReadMIMEHeader()
if err != nil {
if err == io.EOF {
err = io.ErrUnexpectedEOF
}
return err
}
_, err = readPack(c.r, &c.resp)
if err != nil {
return err
}
c.mutex.Lock()
Id := (uint64)(c.resp.Id)
r.ServiceMethod = c.pending[Id]
delete(c.pending, Id)
c.mutex.Unlock()
r.Error = ""
r.Seq = Id
if c.resp.Error != "" || c.resp.Result == nil {
fmt.Errorf("invalid error %v", c.resp.Error)
r.Error = c.resp.Error
}
return nil
}
func (c *codec) ReadResponseHeader(r *rpc.Response) error {
c.header = internal.Header{} // reset
if err := c.decode(&c.header); err != nil {
return err
}
r.ServiceMethod = c.header.Method
r.Seq = c.header.SeqID
r.Error = c.header.Error
return nil
}
func (c *clientCodec) ReadResponseHeader(r *rpc.Response) error {
c.resp.reset()
_, err := readPack(c.r, &c.resp)
if err != nil {
return err
}
c.mutex.Lock()
Id := (uint64)(c.resp.Id)
r.ServiceMethod = c.pending[Id]
delete(c.pending, Id)
c.mutex.Unlock()
r.Error = ""
r.Seq = Id
if c.resp.Error != "" || c.resp.Result == nil {
fmt.Errorf("invalid error %v", c.resp.Error)
r.Error = c.resp.Error
}
return nil
}
// ReadResponseHeader receives and decodes a net/rpc response header r.
func (c *clientCodec) ReadResponseHeader(r *rpc.Response) error {
var err error
var hdr ProtoRPCResponseHeader
if err = c.m.ReadMessage(&hdr); err != nil {
return util.Logged(err)
}
r.Seq = *hdr.Seq
r.ServiceMethod = *hdr.Op
if hdr.Error != nil {
r.Error = *hdr.Error
}
return nil
}
func (cdc *HrpcClientCodec) ReadResponseHeader(resp *rpc.Response) error {
hdr := common.HrpcResponseHeader{}
err := binary.Read(cdc.rwc, binary.LittleEndian, &hdr)
if err != nil {
return errors.New(fmt.Sprintf("Error reading response header "+
"bytes: %s", err.Error()))
}
resp.ServiceMethod = common.HrpcMethodIdToMethodName(hdr.MethodId)
if resp.ServiceMethod == "" {
return errors.New(fmt.Sprintf("Error reading response header: "+
"invalid method ID %d.", hdr.MethodId))
}
resp.Seq = hdr.Seq
if hdr.ErrLength > 0 {
if hdr.ErrLength > common.MAX_HRPC_ERROR_LENGTH {
return errors.New(fmt.Sprintf("Error reading response header: "+
"error message was %d bytes long, but "+
"MAX_HRPC_ERROR_LENGTH is %d.",
hdr.ErrLength, common.MAX_HRPC_ERROR_LENGTH))
}
buf := make([]byte, hdr.ErrLength)
var nread int
nread, err = cdc.rwc.Read(buf)
if uint32(nread) != hdr.ErrLength {
return errors.New(fmt.Sprintf("Error reading response header: "+
"failed to read %d bytes of error message.", nread))
}
if err != nil {
return errors.New(fmt.Sprintf("Error reading response header: "+
"failed to read %d bytes of error message: %s",
nread, err.Error()))
}
resp.Error = string(buf)
} else {
resp.Error = ""
}
cdc.length = hdr.Length
return nil
}
func (s *ServerImpl) sendResponse(sending *sync.Mutex, req *rpc.Request, resp *rpc.Response, reply interface{}, codec rpc.ServerCodec, errmsg string) {
resp.ServiceMethod = req.ServiceMethod
if errmsg != "" {
resp.Error = errmsg
reply = invalidRequest
}
resp.Seq = req.Seq
sending.Lock()
defer sending.Unlock()
err := codec.WriteResponse(resp, reply)
if err != nil {
log.Println("rpc: writing response:", err)
}
}
// sendResponses sends a stream of responses on a connection, and
// exits when the channel is closed.
func (s *Server) sendResponses(codec rpc.ServerCodec, responses <-chan serverResponse) {
for resp := range responses {
rpcResp := rpc.Response{
ServiceMethod: resp.req.ServiceMethod,
Seq: resp.req.Seq,
}
if resp.err != nil {
rpcResp.Error = resp.err.Error()
}
if err := codec.WriteResponse(&rpcResp, resp.reply); err != nil {
log.Warningf("rpc: write response failed: %s", err)
// TODO(bdarnell): what to do at this point? close the connection?
// net/rpc just swallows the error.
}
}
}
func (this *clientCodec) ReadResponseHeader(r *rpc.Response) (e error) {
data, e := ioutil.ReadAll(this.conn)
if e != nil {
return
}
fmt.Println("receive:", string(data))
e = json.Unmarshal(data, &this.resp)
fmt.Println("receive:", this.resp)
if e != nil {
return
}
r.Seq = this.resp.Id
if this.resp.Error != nil {
r.Error = this.resp.Error.(string)
}
return
}
func (c *clientCodec) ReadResponseHeader(response *rpc.Response) error {
name, messageType, seq, err := c.protocol.ReadMessageBegin(c.transport)
if err != nil {
return err
}
response.ServiceMethod = name
response.Seq = uint64(seq)
if messageType == messageTypeException {
exception := &ApplicationException{}
if err := DecodeStruct(c.transport, c.protocol, exception); err != nil {
return err
}
response.Error = exception.String()
return c.protocol.ReadMessageEnd(c.transport)
}
return nil
}
// ReadResponseHeader reads the header protobuf (which is prefixed by a uvarint
// indicating its size) from the connection, decodes it, and stores the fields
// in the given request.
func (c *ClientCodec) ReadResponseHeader(resp *rpc.Response) error {
var header wire.Header
if err := ReadProto(c.r, &header); err != nil {
return err
}
if header.Method == nil {
return fmt.Errorf("header missing method: %s", header)
}
if header.Seq == nil {
return fmt.Errorf("header missing seq: %s", header)
}
resp.ServiceMethod = *header.Method
resp.Seq = *header.Seq
if header.Error != nil {
resp.Error = *header.Error
}
return nil
}
func (s *codec) WriteResponse(resp *rpc.Response, pb interface{}) error {
var header rpc4.Header
header.Method, header.Sequence, header.MessageType = &resp.ServiceMethod, &resp.Seq, rpc4.Header_RESPONSE.Enum()
var data []byte
if resp.Error == "" {
var err error
if data, err = proto.Marshal(pb.(proto.Message)); err != nil {
resp.Error = err.Error()
}
}
if resp.Error != "" {
header.MessageType = rpc4.Header_ERROR.Enum()
data = []byte(resp.Error)
}
return s.writeHeaderData(&header, data)
}
func (codec *clientCodec) ReadResponseHeader(response *rpc.Response) (err error) {
seq := <-codec.ready
httpResponse := codec.responses[seq]
codec.responseBody, err = ioutil.ReadAll(httpResponse.Body)
if err != nil {
return err
}
httpResponse.Body.Close()
if fault, _ := responseFailed(codec.responseBody); fault {
response.Error = fmt.Sprintf("%v", parseFailedResponse(codec.responseBody))
}
response.Seq = seq
delete(codec.responses, seq)
return nil
}
func (client *clientCodec) ReadResponseHeader(r *rpc.Response) error {
client.curDelivery = <-client.message
var err error
if err = client.curDelivery.Headers.Validate(); err != nil {
return errors.New("error while reading body: " + err.Error())
}
if err, ok := client.curDelivery.Headers["error"]; ok {
errStr, ok := err.(string)
if !ok {
return errors.New("error header not a string")
}
r.Error = errStr
}
r.ServiceMethod = client.curDelivery.ReplyTo
r.Seq, err = strconv.ParseUint(client.curDelivery.MessageId, 10, 64)
if err != nil {
return err
}
return nil
}