initial import

example/tracing/portal/etc/config.json

@@ -0,0 +1,19 @@
+{
+    "Name": "portal.rpc",
+    "ListenOn": "localhost:3456",
+    "Etcd": {
+        "Hosts": [
+            "localhost:2379"
+        ],
+        "Key": "portal"
+    },
+    "UserRpc": {
+        "Etcd": {
+            "Hosts": [
+                "localhost:2379"
+            ],
+            "Key": "user"
+        }
+    },
+    "Timeout": 500
+}

example/tracing/portal/server.go

@@ -0,0 +1,67 @@
+package main
+
+import (
+	"context"
+	"errors"
+	"flag"
+
+	"zero/core/conf"
+	"zero/example/tracing/remote/portal"
+	"zero/example/tracing/remote/user"
+	"zero/rpcx"
+
+	"google.golang.org/grpc"
+)
+
+var configFile = flag.String("f", "etc/config.json", "the config file")
+
+type (
+	Config struct {
+		rpcx.RpcServerConf
+		UserRpc rpcx.RpcClientConf
+	}
+
+	PortalServer struct {
+		userRpc *rpcx.RpcClient
+	}
+)
+
+func NewPortalServer(client *rpcx.RpcClient) *PortalServer {
+	return &PortalServer{
+		userRpc: client,
+	}
+}
+
+func (gs *PortalServer) Portal(ctx context.Context, req *portal.PortalRequest) (*portal.PortalResponse, error) {
+	conn, ok := gs.userRpc.Next()
+	if !ok {
+		return nil, errors.New("internal error")
+	}
+
+	greet := user.NewUserClient(conn)
+	resp, err := greet.GetGrade(ctx, &user.UserRequest{
+		Name: req.Name,
+	})
+	if err != nil {
+		return &portal.PortalResponse{
+			Response: err.Error(),
+		}, nil
+	} else {
+		return &portal.PortalResponse{
+			Response: resp.Response,
+		}, nil
+	}
+}
+
+func main() {
+	flag.Parse()
+
+	var c Config
+	conf.MustLoad(*configFile, &c)
+
+	client := rpcx.MustNewClient(c.UserRpc)
+	server := rpcx.MustNewServer(c.RpcServerConf, func(grpcServer *grpc.Server) {
+		portal.RegisterPortalServer(grpcServer, NewPortalServer(client))
+	})
+	server.Start()
+}