Add pub/sub to client/server and make broker more low level

examples/server/main.go

@@ -4,6 +4,7 @@ import (
 	log "github.com/golang/glog"
 	"github.com/myodc/go-micro/cmd"
 	"github.com/myodc/go-micro/examples/server/handler"
+	"github.com/myodc/go-micro/examples/server/subscriber"
 	"github.com/myodc/go-micro/server"
 )
 
@@ -23,6 +24,21 @@ func main() {
 		),
 	)
 
+	// Register Subscribers
+	server.Subscribe(
+		server.NewSubscriber(
+			"topic.go.micro.srv.example",
+			new(subscriber.Example),
+		),
+	)
+
+	server.Subscribe(
+		server.NewSubscriber(
+			"topic.go.micro.srv.example",
+			subscriber.Handler,
+		),
+	)
+
 	// Run server
 	if err := server.Run(); err != nil {
 		log.Fatal(err)

examples/server/proto/example/example.pb.go

@@ -9,6 +9,7 @@ It is generated from these files:
 	go-micro/examples/server/proto/example/example.proto
 
 It has these top-level messages:
+	Message
 	Request
 	Response
 	StreamingRequest
@@ -21,6 +22,14 @@ import proto "github.com/golang/protobuf/proto"
 // Reference imports to suppress errors if they are not otherwise used.
 var _ = proto.Marshal
 
+type Message struct {
+	Say string `protobuf:"bytes,1,opt,name=say" json:"say,omitempty"`
+}
+
+func (m *Message) Reset()         { *m = Message{} }
+func (m *Message) String() string { return proto.CompactTextString(m) }
+func (*Message) ProtoMessage()    {}
+
 type Request struct {
 	Name string `protobuf:"bytes,1,opt,name=name" json:"name,omitempty"`
 }

examples/server/proto/example/example.proto

@@ -1,5 +1,9 @@
 syntax = "proto3";
 
+message Message {
+	string say = 1;
+}
+
 message Request {
 	string name = 1;
 }

examples/server/subscriber/subscriber.go

@@ -0,0 +1,18 @@
+package subscriber
+
+import (
+	log "github.com/golang/glog"
+	example "github.com/myodc/go-micro/examples/server/proto/example"
+	"golang.org/x/net/context"
+)
+
+type Example struct{}
+
+func (e *Example) Handle(ctx context.Context, msg *example.Message) error {
+	log.Info("Handler Received message: ", msg.Say)
+	return nil
+}
+
+func Handler(msg *example.Message) {
+	log.Info("Function Received message: ", msg.Say)
+}