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further transport rework

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This commit is contained in:
Asim 2015-05-21 19:24:57 +01:00
parent b555109fbb
commit 9d514f0e60
11 changed files with 209 additions and 137 deletions
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26
client/client.go
View File

@ -1,33 +1,43 @@
package client
import (
"github.com/myodc/go-micro/transport"
)
type Client interface {
NewRequest(string, string, interface{}) Request
NewProtoRequest(string, string, interface{}) Request
NewJsonRequest(string, string, interface{}) Request
Call(interface{}, interface{}) error
CallRemote(string, string, interface{}, interface{}) error
Call(Request, interface{}) error
CallRemote(string, string, Request, interface{}) error
}
type options struct {
transport transport.Transport
}
type Options func(*options)
var (
client = NewRpcClient()
DefaultClient Client = NewRpcClient()
)
func Call(request Request, response interface{}) error {
return client.Call(request, response)
return DefaultClient.Call(request, response)
}
func CallRemote(address, path string, request Request, response interface{}) error {
return client.CallRemote(address, path, request, response)
return DefaultClient.CallRemote(address, path, request, response)
}
func NewRequest(service, method string, request interface{}) Request {
return client.NewRequest(service, method, request)
return DefaultClient.NewRequest(service, method, request)
}
func NewProtoRequest(service, method string, request interface{}) Request {
return client.NewProtoRequest(service, method, request)
return DefaultClient.NewProtoRequest(service, method, request)
}
func NewJsonRequest(service, method string, request interface{}) Request {
return client.NewJsonRequest(service, method, request)
return DefaultClient.NewJsonRequest(service, method, request)
}

33
client/rpc_client.go
View File

@ -22,7 +22,7 @@ type headerRoundTripper struct {
}
type RpcClient struct {
transport transport.Transport
opts options
}
func init() {
@ -86,7 +86,7 @@ func (r *RpcClient) call(address, path string, request Request, response interfa
msg.Header["Content-Type"] = request.ContentType()
c, err := r.transport.NewClient(request.Service(), address)
c, err := r.opts.transport.NewClient(address)
if err != nil {
return errors.InternalServerError("go.micro.client", fmt.Sprintf("Error sending request: %v", err))
}
@ -146,24 +146,39 @@ func (r *RpcClient) Call(request Request, response interface{}) error {
n := rand.Int() % len(service.Nodes())
node := service.Nodes()[n]
address := fmt.Sprintf("%s:%d", node.Address(), node.Port())
return r.call(address, "/_rpc", request, response)
address := node.Address()
if node.Port() > 0 {
address = fmt.Sprintf("%s:%d", address, node.Port())
}
return r.call(address, "", request, response)
}
func (r *RpcClient) NewRequest(service, method string, request interface{}) *RpcRequest {
func (r *RpcClient) NewRequest(service, method string, request interface{}) Request {
return r.NewProtoRequest(service, method, request)
}
func (r *RpcClient) NewProtoRequest(service, method string, request interface{}) *RpcRequest {
func (r *RpcClient) NewProtoRequest(service, method string, request interface{}) Request {
return newRpcRequest(service, method, request, "application/octet-stream")
}
func (r *RpcClient) NewJsonRequest(service, method string, request interface{}) *RpcRequest {
func (r *RpcClient) NewJsonRequest(service, method string, request interface{}) Request {
return newRpcRequest(service, method, request, "application/json")
}
func NewRpcClient() *RpcClient {
func NewRpcClient(opt ...Options) *RpcClient {
var opts options
for _, o := range opt {
o(&opts)
}
if opts.transport == nil {
opts.transport = transport.DefaultTransport
}
return &RpcClient{
transport: transport.DefaultTransport,
opts: opts,
}
}

3
examples/service_client.go
View File

@ -4,10 +4,13 @@ import (
"fmt"
"github.com/myodc/go-micro/client"
"github.com/myodc/go-micro/cmd"
example "github.com/myodc/go-micro/template/proto/example"
)
func main() {
cmd.Init()
client.DefaultClient = client.NewRpcClient()
// Create new request to service go.micro.service.go-template, method Example.Call
req := client.NewRequest("go.micro.service.template", "Example.Call", &example.Request{
Name: "John",

32
server/rpc_server.go
View File

@ -14,11 +14,11 @@ import (
)
type RpcServer struct {
mtx sync.RWMutex
address string
transport transport.Transport
rpc *rpc.Server
exit chan chan error
mtx sync.RWMutex
address string
opts options
rpc *rpc.Server
exit chan chan error
}
var (
@ -96,7 +96,7 @@ func (s *RpcServer) Register(r Receiver) error {
func (s *RpcServer) Start() error {
registerHealthChecker(http.DefaultServeMux)
ts, err := s.transport.NewServer(Name, s.address)
ts, err := s.opts.transport.NewServer(s.address)
if err != nil {
return err
}
@ -123,11 +123,21 @@ func (s *RpcServer) Stop() error {
return <-ch
}
func NewRpcServer(address string) *RpcServer {
func NewRpcServer(address string, opt ...Options) *RpcServer {
var opts options
for _, o := range opt {
o(&opts)
}
if opts.transport == nil {
opts.transport = transport.DefaultTransport
}
return &RpcServer{
address: address,
transport: transport.DefaultTransport,
rpc: rpc.NewServer(),
exit: make(chan chan error),
opts: opts,
address: address,
rpc: rpc.NewServer(),
exit: make(chan chan error),
}
}

25
server/server.go
View File

@ -10,6 +10,7 @@ import (
"code.google.com/p/go-uuid/uuid"
log "github.com/golang/glog"
"github.com/myodc/go-micro/registry"
"github.com/myodc/go-micro/transport"
)
type Server interface {
@ -22,6 +23,12 @@ type Server interface {
Stop() error
}
type options struct {
transport transport.Transport
}
type Options func(*options)
var (
Address string
Name string
@ -65,16 +72,26 @@ func Run() error {
}
// parse address for host, port
var host string
var port int
parts := strings.Split(DefaultServer.Address(), ":")
host := strings.Join(parts[:len(parts)-1], ":")
port, _ := strconv.Atoi(parts[len(parts)-1])
if len(parts) > 1 {
host = strings.Join(parts[:len(parts)-1], ":")
port, _ = strconv.Atoi(parts[len(parts)-1])
} else {
host = parts[0]
}
// register service
node := registry.NewNode(Id, host, port)
service := registry.NewService(Name, node)
log.Infof("Registering %s", node.Id())
registry.Register(service)
log.Infof("Registering node: %s", node.Id())
err := registry.Register(service)
if err != nil {
log.Fatal("Failed to register: %v", err)
}
ch := make(chan os.Signal, 1)
signal.Notify(ch, syscall.SIGTERM, syscall.SIGINT, syscall.SIGKILL)

18
transport/http_transport.go
View File

@ -17,8 +17,8 @@ type HttpTransport struct {
}
type HttpTransportClient struct {
client *http.Client
target string
ht *HttpTransport
addr string
}
type HttpTransportSocket struct {
@ -52,16 +52,16 @@ func (h *HttpTransportClient) Send(m *Message) (*Message, error) {
Method: "POST",
URL: &url.URL{
Scheme: "http",
Host: h.target,
Host: h.addr,
// Path: path,
},
Header: header,
Body: buf,
ContentLength: int64(reqB.Len()),
Host: h.target,
Host: h.addr,
}
rsp, err := h.client.Do(hreq)
rsp, err := h.ht.client.Do(hreq)
if err != nil {
return nil, err
}
@ -144,14 +144,14 @@ func (h *HttpTransportServer) Serve(fn func(Socket)) error {
return srv.Serve(h.listener)
}
func (h *HttpTransport) NewClient(name, addr string) (Client, error) {
func (h *HttpTransport) NewClient(addr string) (Client, error) {
return &HttpTransportClient{
client: h.client,
target: addr,
ht: h,
addr: addr,
}, nil
}
func (h *HttpTransport) NewServer(name, addr string) (Server, error) {
func (h *HttpTransport) NewServer(addr string) (Server, error) {
l, err := net.Listen("tcp", addr)
if err != nil {
return nil, err

46
transport/nats_transport.go
View File

@ -9,11 +9,13 @@ import (
"github.com/apcera/nats"
)
type NatsTransport struct{}
type NatsTransport struct {
addrs []string
}
type NatsTransportClient struct {
conn *nats.Conn
target string
conn *nats.Conn
addr string
}
type NatsTransportSocket struct {
@ -24,7 +26,7 @@ type NatsTransportSocket struct {
type NatsTransportServer struct {
conn *nats.Conn
name string
addr string
exit chan bool
}
@ -34,7 +36,7 @@ func (n *NatsTransportClient) Send(m *Message) (*Message, error) {
return nil, err
}
rsp, err := n.conn.Request(n.target, b, time.Second*10)
rsp, err := n.conn.Request(n.addr, b, time.Second*10)
if err != nil {
return nil, err
}
@ -72,7 +74,7 @@ func (n *NatsTransportSocket) Write(b []byte) error {
}
func (n *NatsTransportServer) Addr() string {
return "127.0.0.1:4222"
return n.addr
}
func (n *NatsTransportServer) Close() error {
@ -82,7 +84,7 @@ func (n *NatsTransportServer) Close() error {
}
func (n *NatsTransportServer) Serve(fn func(Socket)) error {
s, err := n.conn.QueueSubscribe(n.name, "queue:"+n.name, func(m *nats.Msg) {
s, err := n.conn.Subscribe(n.addr, func(m *nats.Msg) {
buf := bytes.NewBuffer(nil)
hdr := make(map[string]string)
@ -113,39 +115,45 @@ func (n *NatsTransportServer) Serve(fn func(Socket)) error {
return s.Unsubscribe()
}
func (n *NatsTransport) NewClient(name, addr string) (Client, error) {
if !strings.HasPrefix(addr, "nats://") {
addr = nats.DefaultURL
func (n *NatsTransport) NewClient(addr string) (Client, error) {
cAddr := nats.DefaultURL
if len(n.addrs) > 0 && strings.HasPrefix(n.addrs[0], "nats://") {
cAddr = n.addrs[0]
}
c, err := nats.Connect(addr)
c, err := nats.Connect(cAddr)
if err != nil {
return nil, err
}
return &NatsTransportClient{
conn: c,
target: name,
conn: c,
addr: addr,
}, nil
}
func (n *NatsTransport) NewServer(name, addr string) (Server, error) {
if !strings.HasPrefix(addr, "nats://") {
addr = nats.DefaultURL
func (n *NatsTransport) NewServer(addr string) (Server, error) {
cAddr := nats.DefaultURL
if len(n.addrs) > 0 && strings.HasPrefix(n.addrs[0], "nats://") {
cAddr = n.addrs[0]
}
c, err := nats.Connect(addr)
c, err := nats.Connect(cAddr)
if err != nil {
return nil, err
}
return &NatsTransportServer{
name: name,
addr: nats.NewInbox(),
conn: c,
exit: make(chan bool, 1),
}, nil
}
func NewNatsTransport(addrs []string) *NatsTransport {
return &NatsTransport{}
return &NatsTransport{
addrs: addrs,
}
}

5
transport/rabbitmq_channel.go
View File

@ -2,7 +2,6 @@ package transport
//
// All credit to Mondo
// https://github.com/mondough/typhon
//
import (
@ -50,11 +49,11 @@ func (r *RabbitChannel) Close() error {
return r.channel.Close()
}
func (r *RabbitChannel) Publish(exchange, routingKey string, message amqp.Publishing) error {
func (r *RabbitChannel) Publish(exchange, key string, message amqp.Publishing) error {
if r.channel == nil {
return errors.New("Channel is nil")
}
return r.channel.Publish(exchange, routingKey, false, false, message)
return r.channel.Publish(exchange, key, false, false, message)
}
func (r *RabbitChannel) DeclareExchange(exchange string) error {

40
transport/rabbitmq_connection.go
View File

@ -2,10 +2,10 @@ package transport
//
// All credit to Mondo
// https://github.com/mondough/typhon
//
import (
"strings"
"sync"
"time"
@ -27,9 +27,9 @@ type RabbitConnection struct {
connected bool
mtx sync.Mutex
closeChan chan struct{}
closed bool
mtx sync.Mutex
close chan bool
closed bool
}
func (r *RabbitConnection) Init() chan bool {
@ -53,7 +53,7 @@ func (r *RabbitConnection) Connect(connected chan bool) {
case <-notifyClose:
// Spin around and reconnect
r.connected = false
case <-r.closeChan:
case <-r.close:
// Shut down connection
if err := r.Connection.Close(); err != nil {
}
@ -75,7 +75,7 @@ func (r *RabbitConnection) Close() {
return
}
close(r.closeChan)
close(r.close)
r.closed = true
}
@ -97,23 +97,23 @@ func (r *RabbitConnection) tryToConnect() error {
return nil
}
func (r *RabbitConnection) Consume(serverName string) (<-chan amqp.Delivery, error) {
func (r *RabbitConnection) Consume(queue string) (<-chan amqp.Delivery, error) {
consumerChannel, err := NewRabbitChannel(r.Connection)
if err != nil {
return nil, err
}
err = consumerChannel.DeclareQueue(serverName)
err = consumerChannel.DeclareQueue(queue)
if err != nil {
return nil, err
}
deliveries, err := consumerChannel.ConsumeQueue(serverName)
deliveries, err := consumerChannel.ConsumeQueue(queue)
if err != nil {
return nil, err
}
err = consumerChannel.BindQueue(serverName, r.exchange)
err = consumerChannel.BindQueue(queue, r.exchange)
if err != nil {
return nil, err
}
@ -121,12 +121,16 @@ func (r *RabbitConnection) Consume(serverName string) (<-chan amqp.Delivery, err
return deliveries, nil
}
func (r *RabbitConnection) Publish(exchange, routingKey string, msg amqp.Publishing) error {
return r.ExchangeChannel.Publish(exchange, routingKey, msg)
func (r *RabbitConnection) Publish(exchange, key string, msg amqp.Publishing) error {
return r.ExchangeChannel.Publish(exchange, key, msg)
}
func NewRabbitConnection(exchange, url string) *RabbitConnection {
if len(url) == 0 {
func NewRabbitConnection(exchange string, urls []string) *RabbitConnection {
var url string
if len(urls) > 0 && strings.HasPrefix(urls[0], "amqp://") {
url = urls[0]
} else {
url = DefaultRabbitURL
}
@ -135,9 +139,9 @@ func NewRabbitConnection(exchange, url string) *RabbitConnection {
}
return &RabbitConnection{
exchange: DefaultExchange,
url: DefaultRabbitURL,
notify: make(chan bool, 1),
closeChan: make(chan struct{}),
exchange: exchange,
url: url,
notify: make(chan bool, 1),
close: make(chan bool),
}
}

106
transport/rabbitmq_transport.go
View File

@ -12,13 +12,14 @@ import (
)
type RabbitMQTransport struct {
conn *RabbitConnection
conn *RabbitConnection
addrs []string
}
type RabbitMQTransportClient struct {
once sync.Once
conn *RabbitConnection
target string
rt *RabbitMQTransport
addr string
replyTo string
sync.Mutex
@ -33,27 +34,27 @@ type RabbitMQTransportSocket struct {
type RabbitMQTransportServer struct {
conn *RabbitConnection
name string
addr string
}
func (h *RabbitMQTransportClient) init() {
<-h.conn.Init()
if err := h.conn.Channel.DeclareReplyQueue(h.replyTo); err != nil {
func (r *RabbitMQTransportClient) init() {
<-r.rt.conn.Init()
if err := r.rt.conn.Channel.DeclareReplyQueue(r.replyTo); err != nil {
return
}
deliveries, err := h.conn.Channel.ConsumeQueue(h.replyTo)
deliveries, err := r.rt.conn.Channel.ConsumeQueue(r.replyTo)
if err != nil {
return
}
go func() {
for delivery := range deliveries {
go h.handle(delivery)
go r.handle(delivery)
}
}()
}
func (h *RabbitMQTransportClient) handle(delivery amqp.Delivery) {
ch := h.getReq(delivery.CorrelationId)
func (r *RabbitMQTransportClient) handle(delivery amqp.Delivery) {
ch := r.getReq(delivery.CorrelationId)
if ch == nil {
return
}
@ -63,28 +64,28 @@ func (h *RabbitMQTransportClient) handle(delivery amqp.Delivery) {
}
}
func (h *RabbitMQTransportClient) putReq(id string) chan amqp.Delivery {
h.Lock()
func (r *RabbitMQTransportClient) putReq(id string) chan amqp.Delivery {
r.Lock()
ch := make(chan amqp.Delivery, 1)
h.inflight[id] = ch
h.Unlock()
r.inflight[id] = ch
r.Unlock()
return ch
}
func (h *RabbitMQTransportClient) getReq(id string) chan amqp.Delivery {
h.Lock()
defer h.Unlock()
if ch, ok := h.inflight[id]; ok {
delete(h.inflight, id)
func (r *RabbitMQTransportClient) getReq(id string) chan amqp.Delivery {
r.Lock()
defer r.Unlock()
if ch, ok := r.inflight[id]; ok {
delete(r.inflight, id)
return ch
}
return nil
}
func (h *RabbitMQTransportClient) Send(m *Message) (*Message, error) {
h.once.Do(h.init)
func (r *RabbitMQTransportClient) Send(m *Message) (*Message, error) {
r.once.Do(r.init)
if !h.conn.IsConnected() {
if !r.rt.conn.IsConnected() {
return nil, errors.New("Not connected to AMQP")
}
@ -93,7 +94,7 @@ func (h *RabbitMQTransportClient) Send(m *Message) (*Message, error) {
return nil, err
}
replyChan := h.putReq(id.String())
replyChan := r.putReq(id.String())
headers := amqp.Table{}
@ -105,12 +106,12 @@ func (h *RabbitMQTransportClient) Send(m *Message) (*Message, error) {
CorrelationId: id.String(),
Timestamp: time.Now().UTC(),
Body: m.Body,
ReplyTo: h.replyTo,
ReplyTo: r.replyTo,
Headers: headers,
}
if err := h.conn.Publish("micro", h.target, message); err != nil {
h.getReq(id.String())
if err := r.rt.conn.Publish("micro", r.addr, message); err != nil {
r.getReq(id.String())
return nil, err
}
@ -131,44 +132,43 @@ func (h *RabbitMQTransportClient) Send(m *Message) (*Message, error) {
}
}
func (h *RabbitMQTransportClient) Close() error {
h.conn.Close()
func (r *RabbitMQTransportClient) Close() error {
return nil
}
func (h *RabbitMQTransportSocket) Recv() (*Message, error) {
func (r *RabbitMQTransportSocket) Recv() (*Message, error) {
m := &Message{
Header: make(map[string]string),
Body: h.d.Body,
Body: r.d.Body,
}
for k, v := range h.d.Headers {
for k, v := range r.d.Headers {
m.Header[k] = fmt.Sprintf("%v", v)
}
return m, nil
}
func (h *RabbitMQTransportSocket) WriteHeader(k string, v string) {
h.hdr[k] = v
func (r *RabbitMQTransportSocket) WriteHeader(k string, v string) {
r.hdr[k] = v
}
func (h *RabbitMQTransportSocket) Write(b []byte) error {
_, err := h.buf.Write(b)
func (r *RabbitMQTransportSocket) Write(b []byte) error {
_, err := r.buf.Write(b)
return err
}
func (h *RabbitMQTransportServer) Addr() string {
return h.conn.Connection.LocalAddr().String()
func (r *RabbitMQTransportServer) Addr() string {
return r.addr
}
func (h *RabbitMQTransportServer) Close() error {
h.conn.Close()
func (r *RabbitMQTransportServer) Close() error {
r.conn.Close()
return nil
}
func (h *RabbitMQTransportServer) Serve(fn func(Socket)) error {
deliveries, err := h.conn.Consume(h.name)
func (r *RabbitMQTransportServer) Serve(fn func(Socket)) error {
deliveries, err := r.conn.Consume(r.addr)
if err != nil {
return err
}
@ -190,7 +190,7 @@ func (h *RabbitMQTransportServer) Serve(fn func(Socket)) error {
Headers: headers,
}
h.conn.Publish("", d.ReplyTo, msg)
r.conn.Publish("", d.ReplyTo, msg)
buf.Reset()
}
@ -201,32 +201,38 @@ func (h *RabbitMQTransportServer) Serve(fn func(Socket)) error {
return nil
}
func (h *RabbitMQTransport) NewClient(name, addr string) (Client, error) {
func (r *RabbitMQTransport) NewClient(addr string) (Client, error) {
id, err := uuid.NewV4()
if err != nil {
return nil, err
}
return &RabbitMQTransportClient{
conn: h.conn,
target: name,
rt: r,
addr: addr,
inflight: make(map[string]chan amqp.Delivery),
replyTo: fmt.Sprintf("replyTo-%s", id.String()),
}, nil
}
func (h *RabbitMQTransport) NewServer(name, addr string) (Server, error) {
conn := NewRabbitConnection("", "")
func (r *RabbitMQTransport) NewServer(addr string) (Server, error) {
id, err := uuid.NewV4()
if err != nil {
return nil, err
}
conn := NewRabbitConnection("", r.addrs)
<-conn.Init()
return &RabbitMQTransportServer{
name: name,
addr: id.String(),
conn: conn,
}, nil
}
func NewRabbitMQTransport(addrs []string) *RabbitMQTransport {
return &RabbitMQTransport{
conn: NewRabbitConnection("", ""),
conn: NewRabbitConnection("", addrs),
addrs: addrs,
}
}

12
transport/transport.go
View File

@ -23,18 +23,18 @@ type Server interface {
}
type Transport interface {
NewClient(name, addr string) (Client, error)
NewServer(name, addr string) (Server, error)
NewClient(addr string) (Client, error)
NewServer(addr string) (Server, error)
}
var (
DefaultTransport Transport = NewHttpTransport([]string{})
)
func NewClient(name, addr string) (Client, error) {
return DefaultTransport.NewClient(name, addr)
func NewClient(addr string) (Client, error) {
return DefaultTransport.NewClient(addr)
}
func NewServer(name, addr string) (Server, error) {
return DefaultTransport.NewServer(name, addr)
func NewServer(addr string) (Server, error) {
return DefaultTransport.NewServer(addr)
}