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Updated codec interface and code. Painful stuff

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This commit is contained in:
Asim 2015-11-28 11:22:29 +00:00
parent f49922f6b3
commit 654728027b
18 changed files with 380 additions and 352 deletions
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5
client/buffer.go
View File

@ -1,13 +1,14 @@
package client
import (
"io"
"bytes"
)
type buffer struct {
io.ReadWriter
*bytes.Buffer
}
func (b *buffer) Close() error {
b.Buffer.Reset()
return nil
}

101
client/codec.go
View File

@ -1,101 +0,0 @@
package client
import (
"io"
"net/rpc"
"sync"
"github.com/micro/go-micro/codec"
"github.com/youtube/vitess/go/rpcplus"
"github.com/youtube/vitess/go/rpcplus/jsonrpc"
"github.com/youtube/vitess/go/rpcplus/pbrpc"
)
var (
defaultContentType = "application/octet-stream"
defaultCodecs = map[string]codecFunc{
"application/json": jsonrpc.NewClientCodec,
"application/json-rpc": jsonrpc.NewClientCodec,
"application/protobuf": pbrpc.NewClientCodec,
"application/proto-rpc": pbrpc.NewClientCodec,
"application/octet-stream": pbrpc.NewClientCodec,
}
)
// only for internal use
type codecFunc func(io.ReadWriteCloser) rpcplus.ClientCodec
// wraps an net/rpc ClientCodec to provide an rpcplus.ClientCodec
// temporary until we strip out use of rpcplus
type rpcCodecWrap struct {
sync.Mutex
c codec.Codec
rwc io.ReadWriteCloser
}
func (cw *rpcCodecWrap) WriteRequest(r *rpcplus.Request, b interface{}) error {
cw.Lock()
defer cw.Unlock()
req := &rpc.Request{ServiceMethod: r.ServiceMethod, Seq: r.Seq}
data, err := cw.c.Marshal(req)
if err != nil {
return err
}
_, err = pbrpc.WriteNetString(cw.rwc, data)
if err != nil {
return err
}
data, err = cw.c.Marshal(b)
if err != nil {
return err
}
_, err = pbrpc.WriteNetString(cw.rwc, data)
if err != nil {
return err
}
return nil
}
func (cw *rpcCodecWrap) ReadResponseHeader(r *rpcplus.Response) error {
data, err := pbrpc.ReadNetString(cw.rwc)
if err != nil {
return err
}
rtmp := new(rpc.Response)
err = cw.c.Unmarshal(data, rtmp)
if err != nil {
return err
}
r.ServiceMethod = rtmp.ServiceMethod
r.Seq = rtmp.Seq
r.Error = rtmp.Error
return nil
}
func (cw *rpcCodecWrap) ReadResponseBody(b interface{}) error {
data, err := pbrpc.ReadNetString(cw.rwc)
if err != nil {
return err
}
if b != nil {
return cw.c.Unmarshal(data, b)
}
return nil
}
func (cw *rpcCodecWrap) Close() error {
return cw.rwc.Close()
}
// wraps a CodecFunc to provide an internal codecFunc
// temporary until we strip rpcplus out
func codecWrap(c codec.Codec) codecFunc {
return func(rwc io.ReadWriteCloser) rpcplus.ClientCodec {
return &rpcCodecWrap{
rwc: rwc,
c: c,
}
}
}

4
client/options.go
View File

@ -10,7 +10,7 @@ import (
type options struct {
contentType string
broker broker.Broker
codecs map[string]codec.Codec
codecs map[string]codec.NewCodec
registry registry.Registry
transport transport.Transport
wrappers []Wrapper
@ -24,7 +24,7 @@ func Broker(b broker.Broker) Option {
}
// Codec to be used to encode/decode requests for a given content type
func Codec(contentType string, c codec.Codec) Option {
func Codec(contentType string, c codec.NewCodec) Option {
return func(o *options) {
o.codecs[contentType] = c
}

40
client/rpc_client.go
View File

@ -1,7 +1,7 @@
package client
import (
"encoding/json"
"bytes"
"fmt"
"sync"
@ -13,8 +13,6 @@ import (
"github.com/micro/go-micro/transport"
rpc "github.com/youtube/vitess/go/rpcplus"
"github.com/golang/protobuf/proto"
"golang.org/x/net/context"
)
@ -27,7 +25,7 @@ func newRpcClient(opt ...Option) Client {
var once sync.Once
opts := options{
codecs: make(map[string]codec.Codec),
codecs: make(map[string]codec.NewCodec),
}
for _, o := range opt {
@ -37,7 +35,6 @@ func newRpcClient(opt ...Option) Client {
if len(opts.contentType) == 0 {
opts.contentType = defaultContentType
}
fmt.Println("content type", opts.contentType)
if opts.transport == nil {
opts.transport = transport.DefaultTransport
@ -62,9 +59,9 @@ func newRpcClient(opt ...Option) Client {
return c
}
func (r *rpcClient) codecFunc(contentType string) (codecFunc, error) {
func (r *rpcClient) newCodec(contentType string) (codec.NewCodec, error) {
if c, ok := r.opts.codecs[contentType]; ok {
return codecWrap(c), nil
return c, nil
}
if cf, ok := defaultCodecs[contentType]; ok {
return cf, nil
@ -86,7 +83,7 @@ func (r *rpcClient) call(ctx context.Context, address string, request Request, r
msg.Header["Content-Type"] = request.ContentType()
cf, err := r.codecFunc(request.ContentType())
cf, err := r.newCodec(request.ContentType())
if err != nil {
return errors.InternalServerError("go.micro.client", err.Error())
}
@ -119,7 +116,7 @@ func (r *rpcClient) stream(ctx context.Context, address string, request Request,
msg.Header["Content-Type"] = request.ContentType()
cf, err := r.codecFunc(request.ContentType())
cf, err := r.newCodec(request.ContentType())
if err != nil {
return nil, errors.InternalServerError("go.micro.client", err.Error())
}
@ -194,30 +191,21 @@ func (r *rpcClient) Publish(ctx context.Context, p Publication) error {
md["Content-Type"] = p.ContentType()
// encode message body
var body []byte
switch p.ContentType() {
case "application/octet-stream":
b, err := proto.Marshal(p.Message().(proto.Message))
if err != nil {
return err
}
body = b
case "application/json":
b, err := json.Marshal(p.Message())
if err != nil {
return err
}
body = b
cf, err := r.newCodec(p.ContentType())
if err != nil {
return errors.InternalServerError("go.micro.client", err.Error())
}
b := &buffer{bytes.NewBuffer(nil)}
if err := cf(b).Write(&codec.Message{Type: codec.Publication}, p.Message()); err != nil {
return errors.InternalServerError("go.micro.client", err.Error())
}
r.once.Do(func() {
r.opts.broker.Connect()
})
return r.opts.broker.Publish(p.Topic(), &broker.Message{
Header: md,
Body: body,
Body: b.Bytes(),
})
}

39
client/rpc_codec.go
View File

@ -3,13 +3,15 @@ package client
import (
"bytes"
"github.com/micro/go-micro/codec"
"github.com/micro/go-micro/codec/proto"
"github.com/micro/go-micro/transport"
rpc "github.com/youtube/vitess/go/rpcplus"
)
type rpcPlusCodec struct {
client transport.Client
codec rpc.ClientCodec
codec codec.Codec
req *transport.Message
buf *readWriteCloser
@ -20,6 +22,18 @@ type readWriteCloser struct {
rbuf *bytes.Buffer
}
var (
defaultContentType = "application/octet-stream"
defaultCodecs = map[string]codec.NewCodec{
// "application/json": jsonrpc.NewClientCodec,
// "application/json-rpc": jsonrpc.NewClientCodec,
"application/protobuf": proto.NewCodec,
"application/proto-rpc": proto.NewCodec,
"application/octet-stream": proto.NewCodec,
}
)
func (rwc *readWriteCloser) Read(p []byte) (n int, err error) {
return rwc.rbuf.Read(p)
}
@ -34,7 +48,7 @@ func (rwc *readWriteCloser) Close() error {
return nil
}
func newRpcPlusCodec(req *transport.Message, client transport.Client, cf codecFunc) *rpcPlusCodec {
func newRpcPlusCodec(req *transport.Message, client transport.Client, c codec.NewCodec) *rpcPlusCodec {
rwc := &readWriteCloser{
wbuf: bytes.NewBuffer(nil),
rbuf: bytes.NewBuffer(nil),
@ -42,14 +56,19 @@ func newRpcPlusCodec(req *transport.Message, client transport.Client, cf codecFu
r := &rpcPlusCodec{
buf: rwc,
client: client,
codec: cf(rwc),
codec: c(rwc),
req: req,
}
return r
}
func (c *rpcPlusCodec) WriteRequest(req *rpc.Request, body interface{}) error {
if err := c.codec.WriteRequest(req, body); err != nil {
m := &codec.Message{
Id: req.Seq,
Method: req.ServiceMethod,
Type: codec.Request,
}
if err := c.codec.Write(m, body); err != nil {
return err
}
c.req.Body = c.buf.wbuf.Bytes()
@ -63,14 +82,20 @@ func (c *rpcPlusCodec) ReadResponseHeader(r *rpc.Response) error {
}
c.buf.rbuf.Reset()
c.buf.rbuf.Write(m.Body)
return c.codec.ReadResponseHeader(r)
var me codec.Message
err := c.codec.ReadHeader(&me, codec.Response)
r.ServiceMethod = me.Method
r.Seq = me.Id
r.Error = me.Error
return err
}
func (c *rpcPlusCodec) ReadResponseBody(r interface{}) error {
return c.codec.ReadResponseBody(r)
func (c *rpcPlusCodec) ReadResponseBody(b interface{}) error {
return c.codec.ReadBody(b)
}
func (c *rpcPlusCodec) Close() error {
c.buf.Close()
c.codec.Close()
return c.client.Close()
}

23
codec/bson/bson.go
View File

@ -1,23 +0,0 @@
package bson
import (
"labix.org/v2/mgo/bson"
)
var (
Codec = bsonCodec{}
)
type bsonCodec struct {}
func (bsonCodec) Marshal(v interface{}) ([]byte, error) {
return bson.Marshal(v)
}
func (bsonCodec) Unmarshal(data []byte, v interface{}) error {
return bson.Unmarshal(data, v)
}
func (bsonCodec) String() string {
return "bson"
}

49
codec/codec.go
View File

@ -1,12 +1,47 @@
package codec
// Codec used to encode and decode request/responses
import (
"io"
)
const (
Error MessageType = iota
Request
Response
Publication
)
type MessageType int
// Takes in a connection/buffer and returns a new Codec
type NewCodec func(io.ReadWriteCloser) Codec
// Codec encodes/decodes various types of
// messages used within go-micro
type Codec interface {
// Marshal returns the wire format of v.
Marshal(v interface{}) ([]byte, error)
// Unmarshal parses the wire format into v.
Unmarshal(data []byte, v interface{}) error
// String returns the name of the Codec implementation. The returned
// string will be used as part of content type in transmission.
Encoder
Decoder
Close() error
String() string
}
type Encoder interface {
Write(*Message, interface{}) error
}
type Decoder interface {
ReadHeader(*Message, MessageType) error
ReadBody(interface{}) error
}
// Message represents detailed information about
// the communication, likely followed by the body.
// In the case of an error, body may be nil.
type Message struct {
Id uint64
Type MessageType
Target string
Method string
Error string
Headers map[string]string
}

24
codec/pb/pb.go
View File

@ -1,24 +0,0 @@
package pb
import (
"github.com/golang/protobuf/proto"
)
var (
Codec = protoCodec{}
)
type protoCodec struct {}
func (protoCodec) Marshal(v interface{}) ([]byte, error) {
return proto.Marshal(v.(proto.Message))
}
func (protoCodec) Unmarshal(data []byte, v interface{}) error {
return proto.Unmarshal(data, v.(proto.Message))
}
func (protoCodec) String() string {
return "proto"
}

36
codec/proto/netstring.go Normal file
View File

@ -0,0 +1,36 @@
package proto
import (
"encoding/binary"
"io"
)
// WriteNetString writes data to a big-endian netstring on a Writer.
// Size is always a 32-bit unsigned int.
func WriteNetString(w io.Writer, data []byte) (written int, err error) {
size := make([]byte, 4)
binary.BigEndian.PutUint32(size, uint32(len(data)))
if written, err = w.Write(size); err != nil {
return
}
return w.Write(data)
}
// ReadNetString reads data from a big-endian netstring.
func ReadNetString(r io.Reader) (data []byte, err error) {
sizeBuf := make([]byte, 4)
_, err = r.Read(sizeBuf)
if err != nil {
return nil, err
}
size := binary.BigEndian.Uint32(sizeBuf)
if size == 0 {
return nil, nil
}
data = make([]byte, size)
_, err = r.Read(data)
if err != nil {
return nil, err
}
return
}

163
codec/proto/proto.go Normal file
View File

@ -0,0 +1,163 @@
package proto
import (
"bytes"
"fmt"
"io"
"sync"
"github.com/golang/protobuf/proto"
"github.com/micro/go-micro/codec"
rpc "github.com/youtube/vitess/go/rpcplus/pbrpc"
)
type flusher interface {
Flush() error
}
type protoCodec struct {
sync.Mutex
rwc io.ReadWriteCloser
mt codec.MessageType
buf *bytes.Buffer
}
func (c *protoCodec) Close() error {
c.buf.Reset()
return c.rwc.Close()
}
func (c *protoCodec) String() string {
return "proto"
}
func (c *protoCodec) Write(m *codec.Message, b interface{}) error {
switch m.Type {
case codec.Request:
c.Lock()
defer c.Unlock()
// This is protobuf, of course we copy it.
pbr := &rpc.Request{ServiceMethod: &m.Method, Seq: &m.Id}
data, err := proto.Marshal(pbr)
if err != nil {
return err
}
_, err = WriteNetString(c.rwc, data)
if err != nil {
return err
}
// Of course this is a protobuf! Trust me or detonate the program.
data, err = proto.Marshal(b.(proto.Message))
if err != nil {
return err
}
_, err = WriteNetString(c.rwc, data)
if err != nil {
return err
}
if flusher, ok := c.rwc.(flusher); ok {
err = flusher.Flush()
}
case codec.Response:
c.Lock()
defer c.Unlock()
rtmp := &rpc.Response{ServiceMethod: &m.Method, Seq: &m.Id, Error: &m.Error}
data, err := proto.Marshal(rtmp)
if err != nil {
return err
}
_, err = WriteNetString(c.rwc, data)
if err != nil {
return err
}
if pb, ok := b.(proto.Message); ok {
data, err = proto.Marshal(pb)
if err != nil {
return err
}
} else {
data = nil
}
_, err = WriteNetString(c.rwc, data)
if err != nil {
return err
}
if flusher, ok := c.rwc.(flusher); ok {
err = flusher.Flush()
}
case codec.Publication:
data, err := proto.Marshal(b.(proto.Message))
if err != nil {
return err
}
c.rwc.Write(data)
default:
return fmt.Errorf("Unrecognised message type: %v", m.Type)
}
return nil
}
func (c *protoCodec) ReadHeader(m *codec.Message, mt codec.MessageType) error {
c.buf.Reset()
c.mt = mt
switch mt {
case codec.Request:
data, err := ReadNetString(c.rwc)
if err != nil {
return err
}
rtmp := new(rpc.Request)
err = proto.Unmarshal(data, rtmp)
if err != nil {
return err
}
m.Method = *rtmp.ServiceMethod
m.Id = *rtmp.Seq
case codec.Response:
data, err := ReadNetString(c.rwc)
if err != nil {
return err
}
rtmp := new(rpc.Response)
err = proto.Unmarshal(data, rtmp)
if err != nil {
return err
}
m.Method = *rtmp.ServiceMethod
m.Id = *rtmp.Seq
m.Error = *rtmp.Error
case codec.Publication:
io.Copy(c.buf, c.rwc)
default:
return fmt.Errorf("Unrecognised message type: %v", mt)
}
return nil
}
func (c *protoCodec) ReadBody(b interface{}) error {
var data []byte
switch c.mt {
case codec.Request, codec.Response:
var err error
data, err = ReadNetString(c.rwc)
if err != nil {
return err
}
case codec.Publication:
data = c.buf.Bytes()
default:
return fmt.Errorf("Unrecognised message type: %v", c.mt)
}
if b != nil {
return proto.Unmarshal(data, b.(proto.Message))
}
return nil
}
func NewCodec(rwc io.ReadWriteCloser) codec.Codec {
return &protoCodec{
buf: bytes.NewBuffer(nil),
rwc: rwc,
}
}

58
examples/client/main.go
View File

@ -6,7 +6,6 @@ import (
"github.com/micro/go-micro/client"
"github.com/micro/go-micro/cmd"
"github.com/micro/go-micro/codec/pb"
c "github.com/micro/go-micro/context"
example "github.com/micro/go-micro/examples/server/proto/example"
"golang.org/x/net/context"
@ -120,35 +119,36 @@ func stream() {
func main() {
cmd.Init()
client.DefaultClient = client.NewClient(
client.Codec("application/pb", pb.Codec),
client.ContentType("application/pb"),
)
// client.DefaultClient = client.NewClient(
// client.Codec("application/pb", pb.Codec),
// client.ContentType("application/pb"),
// )
for {
fmt.Println("\n--- Call example ---\n")
for i := 0; i < 10; i++ {
call(i)
}
fmt.Println("\n--- Streamer example ---\n")
stream()
fmt.Println("\n--- Call example ---\n")
for i := 0; i < 10; i++ {
call(i)
fmt.Println("\n--- Publisher example ---\n")
pub()
fmt.Println("\n--- Wrapper example ---\n")
// Wrap the default client
client.DefaultClient = logWrap(client.DefaultClient)
call(0)
// Wrap using client.Wrap option
client.DefaultClient = client.NewClient(
client.Wrap(traceWrap),
client.Wrap(logWrap),
)
call(1)
time.Sleep(time.Millisecond * 100)
}
fmt.Println("\n--- Streamer example ---\n")
stream()
fmt.Println("\n--- Publisher example ---\n")
pub()
fmt.Println("\n--- Wrapper example ---\n")
// Wrap the default client
client.DefaultClient = logWrap(client.DefaultClient)
call(0)
// Wrap using client.Wrap option
client.DefaultClient = client.NewClient(
client.Wrap(traceWrap),
client.Wrap(logWrap),
)
call(1)
}

8
examples/server/main.go
View File

@ -3,7 +3,6 @@ package main
import (
log "github.com/golang/glog"
"github.com/micro/go-micro/cmd"
"github.com/micro/go-micro/codec/bson"
"github.com/micro/go-micro/examples/server/handler"
"github.com/micro/go-micro/examples/server/subscriber"
"github.com/micro/go-micro/server"
@ -13,16 +12,15 @@ func main() {
// optionally setup command line usage
cmd.Init()
server.DefaultServer = server.NewServer(
server.Codec("application/bson", bson.Codec),
)
// server.DefaultServer = server.NewServer(
// server.Codec("application/bson", bson.Codec),
// )
// Initialise Server
server.Init(
server.Name("go.micro.srv.example"),
)
// Register Handlers
server.Handle(
server.NewHandler(

5
server/buffer.go
View File

@ -1,13 +1,14 @@
package server
import (
"io"
"bytes"
)
type buffer struct {
io.ReadWriter
*bytes.Buffer
}
func (b *buffer) Close() error {
b.Buffer.Reset()
return nil
}

98
server/codec.go
View File

@ -1,98 +0,0 @@
package server
import (
"io"
"net/rpc"
"sync"
"github.com/micro/go-micro/codec"
"github.com/youtube/vitess/go/rpcplus"
"github.com/youtube/vitess/go/rpcplus/jsonrpc"
"github.com/youtube/vitess/go/rpcplus/pbrpc"
)
var (
defaultCodecs = map[string]codecFunc{
"application/json": jsonrpc.NewServerCodec,
"application/json-rpc": jsonrpc.NewServerCodec,
"application/protobuf": pbrpc.NewServerCodec,
"application/proto-rpc": pbrpc.NewServerCodec,
"application/octet-stream": pbrpc.NewServerCodec,
}
)
// for internal use only
type codecFunc func(io.ReadWriteCloser) rpcplus.ServerCodec
// wraps an net/rpc ServerCodec to provide an rpcplus.ServerCodec
// temporary until we strip out use of rpcplus
type rpcCodecWrap struct {
sync.Mutex
rwc io.ReadWriteCloser
c codec.Codec
}
func (cw *rpcCodecWrap) ReadRequestHeader(r *rpcplus.Request) error {
data, err := pbrpc.ReadNetString(cw.rwc)
if err != nil {
return err
}
rtmp := new(rpc.Request)
err = cw.c.Unmarshal(data, rtmp)
if err != nil {
return err
}
r.ServiceMethod = rtmp.ServiceMethod
r.Seq = rtmp.Seq
return nil
}
func (cw *rpcCodecWrap) ReadRequestBody(b interface{}) error {
data, err := pbrpc.ReadNetString(cw.rwc)
if err != nil {
return err
}
if b != nil {
return cw.c.Unmarshal(data, b)
}
return nil
}
func (cw *rpcCodecWrap) WriteResponse(r *rpcplus.Response, b interface{}, l bool) error {
cw.Lock()
defer cw.Unlock()
rtmp := &rpc.Response{ServiceMethod: r.ServiceMethod, Seq: r.Seq, Error: r.Error}
data, err := cw.c.Marshal(rtmp)
if err != nil {
return err
}
_, err = pbrpc.WriteNetString(cw.rwc, data)
if err != nil {
return err
}
data, err = cw.c.Marshal(b)
if err != nil {
return err
}
_, err = pbrpc.WriteNetString(cw.rwc, data)
if err != nil {
return err
}
return nil
}
func (cw *rpcCodecWrap) Close() error {
return cw.rwc.Close()
}
// wraps a CodecFunc to provide an internal codecFunc
// temporary until we strip rpcplus out
func codecWrap(c codec.Codec) codecFunc {
return func(rwc io.ReadWriteCloser) rpcplus.ServerCodec {
return &rpcCodecWrap{
rwc: rwc,
c: c,
}
}
}

6
server/options.go
View File

@ -8,7 +8,7 @@ import (
)
type options struct {
codecs map[string]codec.Codec
codecs map[string]codec.NewCodec
broker broker.Broker
registry registry.Registry
transport transport.Transport
@ -22,7 +22,7 @@ type options struct {
func newOptions(opt ...Option) options {
opts := options{
codecs: make(map[string]codec.Codec),
codecs: make(map[string]codec.NewCodec),
}
for _, o := range opt {
@ -127,7 +127,7 @@ func Broker(b broker.Broker) Option {
}
// Codec to use to encode/decode requests for a given content type
func Codec(contentType string, c codec.Codec) Option {
func Codec(contentType string, c codec.NewCodec) Option {
return func(o *options) {
o.codecs[contentType] = c
}

37
server/rpc_codec.go
View File

@ -3,13 +3,15 @@ package server
import (
"bytes"
"github.com/micro/go-micro/codec"
"github.com/micro/go-micro/codec/proto"
"github.com/micro/go-micro/transport"
rpc "github.com/youtube/vitess/go/rpcplus"
)
type rpcPlusCodec struct {
socket transport.Socket
codec rpc.ServerCodec
codec codec.Codec
req *transport.Message
buf *readWriteCloser
@ -20,6 +22,16 @@ type readWriteCloser struct {
rbuf *bytes.Buffer
}
var (
defaultCodecs = map[string]codec.NewCodec{
// "application/json": jsonrpc.NewServerCodec,
// "application/json-rpc": jsonrpc.NewServerCodec,
"application/protobuf": proto.NewCodec,
"application/proto-rpc": proto.NewCodec,
"application/octet-stream": proto.NewCodec,
}
)
func (rwc *readWriteCloser) Read(p []byte) (n int, err error) {
return rwc.rbuf.Read(p)
}
@ -34,14 +46,14 @@ func (rwc *readWriteCloser) Close() error {
return nil
}
func newRpcPlusCodec(req *transport.Message, socket transport.Socket, cf codecFunc) rpc.ServerCodec {
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: cf(rwc),
codec: c(rwc),
req: req,
socket: socket,
}
@ -49,16 +61,26 @@ func newRpcPlusCodec(req *transport.Message, socket transport.Socket, cf codecFu
}
func (c *rpcPlusCodec) ReadRequestHeader(r *rpc.Request) error {
return c.codec.ReadRequestHeader(r)
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(r interface{}) error {
return c.codec.ReadRequestBody(r)
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()
if err := c.codec.WriteResponse(r, body, last); err != nil {
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{
@ -69,5 +91,6 @@ func (c *rpcPlusCodec) WriteResponse(r *rpc.Response, body interface{}, last boo
func (c *rpcPlusCodec) Close() error {
c.buf.Close()
c.codec.Close()
return c.socket.Close()
}

9
server/rpc_server.go
View File

@ -7,6 +7,7 @@ import (
"sync"
"github.com/micro/go-micro/broker"
"github.com/micro/go-micro/codec"
c "github.com/micro/go-micro/context"
"github.com/micro/go-micro/registry"
"github.com/micro/go-micro/transport"
@ -43,7 +44,7 @@ func (s *rpcServer) accept(sock transport.Socket) {
return
}
cf, err := s.codecFunc(msg.Header["Content-Type"])
cf, err := s.newCodec(msg.Header["Content-Type"])
// TODO: needs better error handling
if err != nil {
sock.Send(&transport.Message{
@ -73,9 +74,9 @@ func (s *rpcServer) accept(sock transport.Socket) {
}
}
func (s *rpcServer) codecFunc(contentType string) (codecFunc, error) {
func (s *rpcServer) newCodec(contentType string) (codec.NewCodec, error) {
if cf, ok := s.opts.codecs[contentType]; ok {
return codecWrap(cf), nil
return cf, nil
}
if cf, ok := defaultCodecs[contentType]; ok {
return cf, nil
@ -200,7 +201,7 @@ func (s *rpcServer) Register() error {
defer s.Unlock()
for sb, _ := range s.subscribers {
handler := createSubHandler(sb)
handler := s.createSubHandler(sb)
sub, err := config.broker.Subscribe(sb.Topic(), handler)
if err != nil {
return err

27
server/subscriber.go
View File

@ -1,11 +1,11 @@
package server
import (
"encoding/json"
"bytes"
"reflect"
"github.com/golang/protobuf/proto"
"github.com/micro/go-micro/broker"
"github.com/micro/go-micro/codec"
c "github.com/micro/go-micro/context"
"github.com/micro/go-micro/registry"
"golang.org/x/net/context"
@ -94,8 +94,19 @@ func newSubscriber(topic string, sub interface{}) Subscriber {
}
}
func createSubHandler(sb *subscriber) broker.Handler {
func (s *rpcServer) createSubHandler(sb *subscriber) broker.Handler {
return func(msg *broker.Message) {
cf, err := s.newCodec(msg.Header["Content-Type"])
if err != nil {
return
}
b := &buffer{bytes.NewBuffer(msg.Body)}
co := cf(b)
if err := co.ReadHeader(&codec.Message{}, codec.Publication); err != nil {
return
}
hdr := make(map[string]string)
for k, v := range msg.Header {
hdr[k] = v
@ -107,7 +118,6 @@ func createSubHandler(sb *subscriber) broker.Handler {
for _, handler := range sb.handlers {
var isVal bool
var req reflect.Value
var uerr error
if handler.reqType.Kind() == reflect.Ptr {
req = reflect.New(handler.reqType.Elem())
@ -116,14 +126,7 @@ func createSubHandler(sb *subscriber) broker.Handler {
isVal = true
}
switch msg.Header["Content-Type"] {
case "application/octet-stream":
uerr = proto.Unmarshal(msg.Body, req.Interface().(proto.Message))
case "application/json":
uerr = json.Unmarshal(msg.Body, req.Interface())
}
if uerr != nil {
if err := co.ReadBody(req.Interface()); err != nil {
continue
}