Tinoj Joseph | ec742f6 | 2022-09-29 19:11:10 +0530 | [diff] [blame] | 1 | /* |
| 2 | * Copyright 2022-present Open Networking Foundation |
| 3 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 4 | * you may not use this file except in compliance with the License. |
| 5 | * You may obtain a copy of the License at |
| 6 | * |
| 7 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 8 | * |
| 9 | * Unless required by applicable law or agreed to in writing, software |
| 10 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 11 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 12 | * See the License for the specific language governing permissions and |
| 13 | * limitations under the License. |
| 14 | */ |
| 15 | |
| 16 | package onos_nbi |
| 17 | |
| 18 | import ( |
| 19 | "context" |
| 20 | "encoding/json" |
| 21 | "net/http" |
| 22 | "strconv" |
| 23 | |
| 24 | "github.com/gorilla/mux" |
| 25 | "voltha-go-controller/internal/pkg/of" |
| 26 | "voltha-go-controller/log" |
| 27 | cntlr "voltha-go-controller/internal/pkg/controller" |
| 28 | ) |
| 29 | |
| 30 | // FlowHandle struct to handle flow related REST calls |
| 31 | type FlowHandle struct { |
| 32 | } |
| 33 | |
| 34 | // FlowHandle struct to handle flow related REST calls |
| 35 | type PendingFlowHandle struct { |
| 36 | } |
| 37 | |
| 38 | type TrafficSelector struct { |
| 39 | |
| 40 | } |
| 41 | |
| 42 | type TrafficTreatment struct { |
| 43 | |
| 44 | } |
| 45 | |
| 46 | /* |
| 47 | type FlowEntry struct { |
| 48 | TrafficSelector |
| 49 | TrafficTreatment |
| 50 | FlowID int |
| 51 | AppID int |
| 52 | GroupID int |
| 53 | Priority int |
| 54 | DeviceID string |
| 55 | TimeOut int |
| 56 | TableID int |
| 57 | }*/ |
| 58 | |
| 59 | func (fh *FlowHandle) ServeHTTP(w http.ResponseWriter, r *http.Request) { |
| 60 | logger.Infow(ctx, "Received-northbound-request", log.Fields{"Method": r.Method, "URL": r.URL}) |
| 61 | switch r.Method { |
| 62 | case "GET": |
| 63 | fh.GetFlows(context.Background(), w, r) |
| 64 | default: |
| 65 | logger.Warnw(ctx, "Unsupported Method", log.Fields{"Method": r.Method}) |
| 66 | } |
| 67 | } |
| 68 | |
| 69 | func (pfh *PendingFlowHandle) ServeHTTP(w http.ResponseWriter, r *http.Request) { |
| 70 | logger.Infow(ctx, "Received-northbound-request", log.Fields{"Method": r.Method, "URL": r.URL}) |
| 71 | switch r.Method { |
| 72 | case "GET": |
| 73 | pfh.GetPendingFlows(context.Background(), w, r) |
| 74 | default: |
| 75 | logger.Warnw(ctx, "Unsupported Method", log.Fields{"Method": r.Method}) |
| 76 | } |
| 77 | } |
| 78 | |
| 79 | func (pfh *PendingFlowHandle) GetPendingFlows(cntx context.Context, w http.ResponseWriter, r *http.Request) { |
| 80 | flows, err := cntlr.GetController().GetAllPendingFlows() |
| 81 | if err != nil { |
| 82 | logger.Errorw(ctx, "Failed to get Pending flows", log.Fields{"Error": err}) |
| 83 | return |
| 84 | } |
| 85 | flowResp := ConvertFlowsToFlowEntry(flows) |
| 86 | FlowRespJSON, err := json.Marshal(flowResp) |
| 87 | if err != nil { |
| 88 | logger.Errorw(ctx, "Failed to marshal pending flow response", log.Fields{"Error": err}) |
| 89 | w.WriteHeader(http.StatusInternalServerError) |
| 90 | return |
| 91 | } |
| 92 | |
| 93 | w.Header().Add("Content-Type", "application/json") |
| 94 | _, err = w.Write(FlowRespJSON) |
| 95 | if err != nil { |
| 96 | logger.Errorw(ctx, "Failed to write Pending Flow response", log.Fields{"Error": err}) |
| 97 | w.WriteHeader(http.StatusInternalServerError) |
| 98 | } |
| 99 | |
| 100 | } |
| 101 | |
| 102 | func (fh *FlowHandle) GetFlows(cntx context.Context, w http.ResponseWriter, r *http.Request) { |
| 103 | vars := mux.Vars(r) |
| 104 | deviceID := vars["deviceId"] |
| 105 | flowIDStr := vars["flowId"] |
| 106 | flowID, _ := strconv.ParseUint(flowIDStr, 10, 64) |
| 107 | var flowResp FlowEntry |
| 108 | if len(deviceID) > 0 && len(flowIDStr) > 0 { |
| 109 | flow, err := fh.getFlow(deviceID, flowID) |
| 110 | if err != nil { |
| 111 | logger.Errorw(ctx, "Failed to Fetch flow", log.Fields{"Error": err}) |
| 112 | return |
| 113 | } |
| 114 | flowResp = ConvertFlowToFlowEntry(flow) |
| 115 | //flowResp = append(flowResp, flow) |
| 116 | } else { |
| 117 | flows, err := fh.getAllFlows(deviceID) |
| 118 | if err != nil { |
| 119 | logger.Errorw(ctx, "Failed to Fetch flows", log.Fields{"Error": err}) |
| 120 | return |
| 121 | } |
| 122 | flowResp = ConvertFlowsToFlowEntry(flows) |
| 123 | //..flowResp = append(flowResp, flows...) |
| 124 | } |
| 125 | FlowRespJSON, err := json.Marshal(flowResp) |
| 126 | if err != nil { |
| 127 | logger.Errorw(ctx, "Failed to marshal flow response", log.Fields{"Error": err}) |
| 128 | w.WriteHeader(http.StatusInternalServerError) |
| 129 | return |
| 130 | } |
| 131 | |
| 132 | w.Header().Add("Content-Type", "application/json") |
| 133 | _, err = w.Write(FlowRespJSON) |
| 134 | if err != nil { |
| 135 | logger.Errorw(ctx, "Failed to write flow response", log.Fields{"Error": err}) |
| 136 | w.WriteHeader(http.StatusInternalServerError) |
| 137 | } |
| 138 | } |
| 139 | |
| 140 | func (fh *FlowHandle) getAllFlows(deviceID string) ([]*of.VoltSubFlow, error) { |
| 141 | if len(deviceID) == 0 { |
| 142 | return cntlr.GetController().GetAllFlows() |
| 143 | } |
| 144 | return cntlr.GetController().GetFlows(deviceID) |
| 145 | } |
| 146 | |
| 147 | func (fh *FlowHandle) getFlow(deviceID string, flowID uint64) (*of.VoltSubFlow, error) { |
| 148 | return cntlr.GetController().GetFlow(deviceID, flowID) |
| 149 | } |