| // Copyright 2018 Open Networking Foundation |
| // |
| // 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 ( |
| "fmt" |
| "os" |
| "os/signal" |
| "os/exec" |
| "github.com/Shopify/sarama" |
| "google.golang.org/grpc" |
| "golang.org/x/net/context" |
| importer "./proto" |
| log "github.com/Sirupsen/logrus" |
| "time" |
| "bytes" |
| "strings" |
| |
| ) |
| |
| const ( |
| address = "localhost:31085" |
| vendor = "edgecore" |
| // device_ip = "192.168.3.44:9888" |
| device_ip = "192.168.4.27:8888" |
| protocol = "https" |
| freq = 180 |
| ) |
| var importerTopic = "importer" |
| var DataConsumer sarama.Consumer |
| |
| func init() { |
| Formatter := new(log.TextFormatter) |
| Formatter.TimestampFormat = "02-01-2006 15:04:05" |
| Formatter.FullTimestamp = true |
| log.SetFormatter(Formatter) |
| } |
| |
| func topicListener(topic *string, master sarama.Consumer) { |
| log.Info("Starting topicListener for ", *topic) |
| consumer, err := master.ConsumePartition(*topic, 0, sarama.OffsetOldest) |
| if err != nil { |
| log.Error("topicListener panic, topic=[%s]: %s", *topic, err.Error()) |
| os.Exit(1) |
| } |
| signals := make(chan os.Signal, 1) |
| signal.Notify(signals, os.Interrupt) |
| doneCh := make(chan struct{}) |
| go func() { |
| for { |
| select { |
| case err := <-consumer.Errors(): |
| log.Error("Consumer error: %s", err.Err) |
| case msg := <-consumer.Messages(): |
| log.Info("Got message on topic=[%s]: %s", *topic, string(msg.Value)) |
| case <-signals: |
| log.Warn("Interrupt is detected") |
| doneCh <- struct{}{} |
| } |
| } |
| }() |
| <-doneCh |
| } |
| |
| func kafkainit() { |
| cmd := exec.Command("/bin/sh","kafka_ip.sh") |
| var kafkaIP string |
| var out bytes.Buffer |
| cmd.Stdout = &out |
| err := cmd.Run() |
| if err != nil { |
| log.Info(err) |
| os.Exit(1) |
| } |
| |
| kafkaIP = out.String() |
| kafkaIP = strings.TrimSuffix(kafkaIP, "\n") |
| kafkaIP = kafkaIP +":9092" |
| fmt.Println("IP address of kafka-cord-0:",kafkaIP) |
| config := sarama.NewConfig() |
| config.Consumer.Return.Errors = true |
| master, err := sarama.NewConsumer([]string{kafkaIP}, config) |
| if err != nil { |
| panic(err) |
| } |
| DataConsumer = master |
| |
| go topicListener(&importerTopic, master) |
| } |
| func main() { |
| log.Info("kafkaInit starting") |
| kafkainit() |
| // Set up a connection to the server. |
| fmt.Println("Starting connection") |
| conn, err := grpc.Dial(address, grpc.WithInsecure()) |
| if err != nil { |
| fmt.Println("could not connect") |
| log.Fatal("did not connect: %v", err) |
| } |
| defer conn.Close() |
| c := importer.NewDeviceManagementClient(conn) |
| |
| ctx, cancel := context.WithTimeout(context.Background(), time.Minute) |
| defer cancel() |
| deviceinfo := new(importer.DeviceInfo) |
| deviceinfo.IpAddress = device_ip |
| deviceinfo.Vendor = vendor |
| deviceinfo.Frequency = freq |
| deviceinfo.Protocol = protocol |
| _, err = c.SendDeviceInfo(ctx, deviceinfo) |
| if err != nil { |
| log.Fatal("could not SendDeviceInfo: %v", err) |
| } |
| quit := make(chan os.Signal) |
| signal.Notify(quit, os.Interrupt) |
| |
| select { |
| case sig := <-quit: |
| fmt.Println("Shutting down:", sig) |
| DataConsumer.Close() |
| panic(err) |
| } |
| |
| } |