voltha-go-controller/onos_nbi/oltflowservice.go

/*
* Copyright 2022-present 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 onos_nbi

import (
	"bytes"
	"context"
        "encoding/json"
        "net/http"

        app "voltha-go-controller/internal/pkg/application"
        "voltha-go-controller/log"
)

// OltFlowServiceHandle handles OltFlowService Requests
type OltFlowServiceHandle struct {
}

// ServeHTTP to serve HTTP requests
func (oh *OltFlowServiceHandle) ServeHTTP(w http.ResponseWriter, r *http.Request) {
        logger.Infow(ctx, "Received-northbound-request", log.Fields{"Method": r.Method, "URL": r.URL})
        switch r.Method {
        case "POST":
                oh.configureOltFlowService(context.Background(), w, r)
        default:
                logger.Warnw(ctx, "Unsupported Method", log.Fields{"Method": r.Method})
        }
}

func (oh *OltFlowServiceHandle) configureOltFlowService(cntx context.Context, w http.ResponseWriter, r *http.Request) {

        // Get the payload to process the request
        d := new(bytes.Buffer)
        if _, err := d.ReadFrom(r.Body);  err != nil {
                logger.Warnw(ctx, "Error reading buffer", log.Fields{"Reason": err.Error()})
                return
        }

        // Unmarshal the request into service configuration structure
        req := &app.OltFlowService{}
        if err := json.Unmarshal(d.Bytes(), req); err != nil {
                logger.Warnw(ctx, "Unmarshal Failed", log.Fields{"Reason": err.Error()})
                http.Error(w, err.Error(), http.StatusConflict)
                return
        }
	app.GetApplication().UpdateOltFlowService(cntx, *req)
}