Takahiro Suzuki | d7bf820 | 2020-12-17 20:21:59 +0900 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright 2020-present Open Networking Foundation |
| 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 l2oam |
| 18 | |
| 19 | import ( |
| 20 | "encoding/json" |
| 21 | "io/ioutil" |
| 22 | "os" |
| 23 | ) |
| 24 | |
| 25 | // JSON file name |
| 26 | const jsonname = "/onu_list.json" |
| 27 | |
| 28 | // OnuStatus has ONU status |
| 29 | type OnuStatus struct { |
| 30 | ID string `json:"id"` |
| 31 | AdminState string `json:"admin_state"` |
| 32 | OpeState string `json:"ope_state"` |
| 33 | ConnectState string `json:"con_state"` |
| 34 | MacAddress string `json:"mac_addr"` |
| 35 | RebootState string `json:"reboot_state"` |
| 36 | } |
| 37 | |
| 38 | // ReadOnuStatusList reads JSON file |
| 39 | func ReadOnuStatusList() ([]OnuStatus, error) { |
| 40 | bytes, err := ioutil.ReadFile(os.Getenv("HOME") + jsonname) |
| 41 | if err != nil && os.IsNotExist(err) { |
| 42 | return nil, nil |
| 43 | } |
| 44 | var onuList []OnuStatus |
| 45 | if err := json.Unmarshal(bytes, &onuList); err != nil { |
| 46 | return nil, err |
| 47 | } |
| 48 | return onuList, nil |
| 49 | } |
| 50 | |
| 51 | // WriteOnuStatusList writes JSON file |
| 52 | func WriteOnuStatusList(list []OnuStatus) error { |
| 53 | bytes, err := json.Marshal(list) |
| 54 | if err != nil { |
| 55 | return err |
| 56 | } |
| 57 | return ioutil.WriteFile(os.Getenv("HOME")+jsonname, bytes, 0644) |
| 58 | } |
| 59 | |
| 60 | // AddOnu adds ONU to ONU status list |
| 61 | func AddOnu(sts *OnuStatus) error { |
| 62 | list, err := ReadOnuStatusList() |
| 63 | if err != nil { |
| 64 | return err |
| 65 | } |
| 66 | if list == nil { |
| 67 | newList := []OnuStatus{*sts} |
| 68 | return WriteOnuStatusList(newList) |
| 69 | } |
| 70 | return WriteOnuStatusList(append(list, *sts)) |
| 71 | } |
| 72 | |
| 73 | // UpdateOnu updates ONU status |
| 74 | func UpdateOnu(upSts *OnuStatus) error { |
| 75 | list, err := ReadOnuStatusList() |
| 76 | if (err != nil) || (list == nil) { |
| 77 | return err |
| 78 | } |
| 79 | newList := []OnuStatus{} |
| 80 | for _, sts := range list { |
| 81 | if sts.ID == upSts.ID { |
| 82 | newList = append(newList, *upSts) |
| 83 | } else { |
| 84 | newList = append(newList, sts) |
| 85 | } |
| 86 | } |
| 87 | return WriteOnuStatusList(newList) |
| 88 | } |
| 89 | |
| 90 | // RemoveOnu removes ONU from ONU status list |
| 91 | func RemoveOnu(id string) error { |
| 92 | list, err := ReadOnuStatusList() |
| 93 | if (err != nil) || (list == nil) { |
| 94 | return err |
| 95 | } |
| 96 | newList := []OnuStatus{} |
| 97 | for _, sts := range list { |
| 98 | if sts.ID != id { |
| 99 | newList = append(newList, sts) |
| 100 | } |
| 101 | } |
| 102 | return WriteOnuStatusList(newList) |
| 103 | } |
| 104 | |
| 105 | // GetOnuFromDeviceID returns ONU status from ONU status list using its device ID |
| 106 | func GetOnuFromDeviceID(id string) (*OnuStatus, error) { |
| 107 | list, err := ReadOnuStatusList() |
| 108 | if err != nil { |
| 109 | return nil, err |
| 110 | } |
| 111 | if list == nil { |
| 112 | return nil, nil |
| 113 | } |
| 114 | for _, sts := range list { |
| 115 | if sts.ID != id { |
| 116 | return &sts, nil |
| 117 | } |
| 118 | } |
| 119 | return nil, nil |
| 120 | } |
| 121 | |
| 122 | // GetOnuFromMacAddr returns ONU status from ONU status list using its MAC address |
| 123 | func GetOnuFromMacAddr(addr string) (*OnuStatus, error) { |
| 124 | list, err := ReadOnuStatusList() |
| 125 | if err != nil { |
| 126 | return nil, err |
| 127 | } |
| 128 | if list == nil { |
| 129 | return nil, nil |
| 130 | } |
| 131 | for _, sts := range list { |
| 132 | if sts.MacAddress == addr { |
| 133 | return &sts, nil |
| 134 | } |
| 135 | } |
| 136 | return nil, nil |
| 137 | } |