Beispiel #1
0
func (c thriftClient) buildTransportRequest(
	reqMeta yarpc.CallReqMeta,
	reqBody envelope.Enveloper,
) (*transport.Request, protocol.Protocol, error) {

	proto := c.p
	if !c.Enveloping {
		proto = disableEnvelopingProtocol{
			Protocol: proto,
			Type:     wire.Reply, // we only decode replies with this instance
		}
	}

	treq := transport.Request{
		Caller:   c.ch.Caller(),
		Service:  c.ch.Service(),
		Encoding: Encoding,
	}
	meta.ToTransportRequest(reqMeta, &treq)
	// Always override the procedure name to the Thrift procedure name.
	treq.Procedure = procedureName(c.thriftService, reqBody.MethodName())

	value, err := reqBody.ToWire()
	if err != nil {
		// ToWire validates the request. If it failed, we should return the error
		// as-is because it's not an encoding error.
		return nil, nil, err
	}

	reqEnvelopeType := reqBody.EnvelopeType()
	if reqEnvelopeType != wire.Call && reqEnvelopeType != wire.OneWay {
		return nil, nil, encoding.RequestBodyEncodeError(
			&treq, errUnexpectedEnvelopeType(reqEnvelopeType),
		)
	}

	var buffer bytes.Buffer
	err = proto.EncodeEnveloped(wire.Envelope{
		Name:  reqBody.MethodName(),
		Type:  reqEnvelopeType,
		SeqID: 1, // don't care
		Value: value,
	}, &buffer)
	if err != nil {
		return nil, nil, encoding.RequestBodyEncodeError(&treq, err)
	}

	treq.Body = &buffer
	return &treq, proto, nil
}
Beispiel #2
0
func (c jsonClient) Call(ctx context.Context, reqMeta yarpc.CallReqMeta, reqBody interface{}, resBodyOut interface{}) (yarpc.CallResMeta, error) {
	treq := transport.Request{
		Caller:   c.ch.Caller(),
		Service:  c.ch.Service(),
		Encoding: Encoding,
	}
	meta.ToTransportRequest(reqMeta, &treq)

	encoded, err := json.Marshal(reqBody)
	if err != nil {
		return nil, encoding.RequestBodyEncodeError(&treq, err)
	}

	treq.Body = bytes.NewReader(encoded)
	tres, err := c.ch.GetUnaryOutbound().Call(ctx, &treq)

	if err != nil {
		return nil, err
	}

	dec := json.NewDecoder(tres.Body)
	if err := dec.Decode(resBodyOut); err != nil {
		return nil, encoding.ResponseBodyDecodeError(&treq, err)
	}

	if err := tres.Body.Close(); err != nil {
		return nil, err
	}

	return meta.FromTransportResponse(tres), nil
}
Beispiel #3
0
func (c jsonClient) CallOneway(ctx context.Context, reqMeta yarpc.CallReqMeta, reqBody interface{}) (transport.Ack, error) {
	treq := transport.Request{
		Caller:   c.ch.Caller(),
		Service:  c.ch.Service(),
		Encoding: Encoding,
	}
	meta.ToTransportRequest(reqMeta, &treq)

	var buff bytes.Buffer
	if err := json.NewEncoder(&buff).Encode(reqBody); err != nil {
		return nil, encoding.RequestBodyEncodeError(&treq, err)
	}

	treq.Body = &buff

	return c.ch.GetOnewayOutbound().CallOneway(ctx, &treq)
}