Don Newton | 98fd881 | 2019-09-23 15:15:02 -0400 | [diff] [blame] | 1 | /* |
| 2 | Copyright 2017 the original author or authors. |
| 3 | |
| 4 | Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | you may not use this file except in compliance with the License. |
| 6 | You may obtain a copy of the License at |
| 7 | |
| 8 | http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | |
| 10 | Unless required by applicable law or agreed to in writing, software |
| 11 | distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | See the License for the specific language governing permissions and |
| 14 | limitations under the License. |
| 15 | */ |
| 16 | |
| 17 | package grpc |
| 18 | |
| 19 | import ( |
| 20 | "context" |
| 21 | "time" |
| 22 | |
| 23 | "github.com/golang/protobuf/ptypes/empty" |
| 24 | |
| 25 | "github.com/opencord/ofagent-go/openflow" |
| 26 | |
| 27 | "fmt" |
| 28 | "log" |
| 29 | |
| 30 | pb "github.com/opencord/voltha-protos/go/voltha" |
| 31 | "google.golang.org/grpc" |
| 32 | ) |
| 33 | |
| 34 | var client pb.VolthaServiceClient |
| 35 | var clientMap map[string]*openflow.Client |
| 36 | var ofAddress string |
| 37 | var ofPort uint16 |
| 38 | |
| 39 | func StartClient(endpointAddress string, endpointPort uint16, openFlowAddress string, openFlowPort uint16) { |
| 40 | ofAddress = openFlowAddress |
| 41 | ofPort = openFlowPort |
| 42 | clientMap = make(map[string]*openflow.Client) |
| 43 | var opts []grpc.DialOption |
| 44 | opts = append(opts, grpc.WithInsecure()) |
| 45 | endpoint := fmt.Sprintf("%s:%d", endpointAddress, endpointPort) |
| 46 | conn, err := grpc.Dial(endpoint, opts...) |
| 47 | defer conn.Close() |
| 48 | if err != nil { |
| 49 | log.Fatalf("fail to dial: %v", err) |
| 50 | } |
| 51 | client = pb.NewVolthaServiceClient(conn) |
| 52 | |
| 53 | go receivePacketIn(client) |
| 54 | go receiveChangeEvent(client) |
| 55 | go streamPacketOut(client) |
| 56 | |
| 57 | openflow.SetGrpcClient(&client) |
| 58 | for { |
| 59 | log.Println("entering device refresh pull") |
| 60 | deviceList, err := client.ListLogicalDevices(context.Background(), &empty.Empty{}) |
| 61 | if err != nil { |
| 62 | log.Printf("ERROR GET DEVICE LIST %v", err) |
| 63 | } |
| 64 | devices := deviceList.GetItems() |
| 65 | refreshDeviceList(devices) |
| 66 | time.Sleep(time.Minute) |
| 67 | log.Println("waking up") |
| 68 | } |
| 69 | } |
| 70 | func refreshDeviceList(devices []*pb.LogicalDevice) { |
| 71 | //first find the new ones |
| 72 | var toAdd []string |
| 73 | var toDel []string |
| 74 | var deviceIdMap = make(map[string]string) |
| 75 | for i := 0; i < len(devices); i++ { |
| 76 | log.Printf("Device ID %s", devices[i].GetId()) |
| 77 | deviceId := devices[i].GetId() |
| 78 | deviceIdMap[deviceId] = deviceId |
| 79 | if clientMap[deviceId] == nil { |
| 80 | toAdd = append(toAdd, deviceId) |
| 81 | } |
| 82 | } |
| 83 | for key, _ := range clientMap { |
| 84 | if deviceIdMap[key] == "" { |
| 85 | toDel = append(toDel, key) |
| 86 | } |
| 87 | } |
| 88 | for i := 0; i < len(toAdd); i++ { |
| 89 | var client = addClient(toAdd[i]) |
| 90 | go client.Start() |
| 91 | } |
| 92 | for i := 0; i < len(toDel); i++ { |
| 93 | clientMap[toDel[i]].End() |
| 94 | delete(clientMap, toDel[i]) |
| 95 | } |
| 96 | } |
| 97 | func addClient(deviceId string) *openflow.Client { |
| 98 | client := openflow.NewClient(ofAddress, ofPort, deviceId, true) |
| 99 | clientMap[deviceId] = client |
| 100 | return client |
| 101 | } |
Don Newton | e0d34a8 | 2019-11-14 10:58:06 -0500 | [diff] [blame^] | 102 | func GetClient(deviceId string) *openflow.Client { |
| 103 | return clientMap[deviceId] |
| 104 | } |