|
123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869 |
- // Copyright 2017, OpenCensus Authors
- //
- // Licensed under the Apache License, Version 2.0 (the "License");
- // you may not use this file except in compliance with the License.
- // You may obtain a copy of the License at
- //
- // http://www.apache.org/licenses/LICENSE-2.0
- //
- // Unless required by applicable law or agreed to in writing, software
- // distributed under the License is distributed on an "AS IS" BASIS,
- // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- // See the License for the specific language governing permissions and
- // limitations under the License.
-
- package main
-
- import (
- "log"
- "os"
- "time"
-
- "go.opencensus.io/examples/exporter"
- pb "go.opencensus.io/examples/grpc/proto"
- "go.opencensus.io/plugin/ocgrpc"
- "go.opencensus.io/stats/view"
- "golang.org/x/net/context"
- "google.golang.org/grpc"
- )
-
- const (
- address = "localhost:50051"
- defaultName = "world"
- )
-
- func main() {
- // Register stats and trace exporters to export
- // the collected data.
- view.RegisterExporter(&exporter.PrintExporter{})
-
- // Register the view to collect gRPC client stats.
- if err := view.Register(ocgrpc.DefaultClientViews...); err != nil {
- log.Fatal(err)
- }
-
- // Set up a connection to the server with the OpenCensus
- // stats handler to enable stats and tracing.
- conn, err := grpc.Dial(address, grpc.WithStatsHandler(&ocgrpc.ClientHandler{}), grpc.WithInsecure())
- if err != nil {
- log.Fatalf("Cannot connect: %v", err)
- }
- defer conn.Close()
- c := pb.NewGreeterClient(conn)
-
- // Contact the server and print out its response.
- name := defaultName
- if len(os.Args) > 1 {
- name = os.Args[1]
- }
- view.SetReportingPeriod(time.Second)
- for {
- r, err := c.SayHello(context.Background(), &pb.HelloRequest{Name: name})
- if err != nil {
- log.Printf("Could not greet: %v", err)
- } else {
- log.Printf("Greeting: %s", r.Message)
- }
- time.Sleep(2 * time.Second)
- }
- }
|