sdnrHandler.go

   1 // -
   2 //   ========================LICENSE_START=================================
   3 //   O-RAN-SC
   4 //   %%
   5 //   Copyright (C) 2022: Nordix Foundation
   6 //   %%
   7 //   Licensed under the Apache License, Version 2.0 (the "License");
   8 //   you may not use this file except in compliance with the License.
   9 //   You may obtain a copy of the License at
  10 //
  11 //        http://www.apache.org/licenses/LICENSE-2.0
  12 //
  13 //   Unless required by applicable law or agreed to in writing, software
  14 //   distributed under the License is distributed on an "AS IS" BASIS,
  15 //   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  16 //   See the License for the specific language governing permissions and
  17 //   limitations under the License.
  18 //   ========================LICENSE_END===================================
  19 //
  20
  21 package sliceassurance
  22
  23 import (
  24         "encoding/json"
  25         "fmt"
  26
  27         log "github.com/sirupsen/logrus"
  28         "oransc.org/usecase/oduclosedloop/icsversion/internal/restclient"
  29         "oransc.org/usecase/oduclosedloop/icsversion/internal/structures"
  30         "oransc.org/usecase/oduclosedloop/icsversion/messages"
  31 )
  32
  33 type SdnrConfiguration struct {
  34         SDNRAddress  string
  35         SDNRUser     string
  36         SDNRPassword string
  37         NodeId       string
  38 }
  39
  40 type SdnrHandler struct {
  41         config SdnrConfiguration
  42         client *restclient.Client
  43         data   *structures.SliceAssuranceMeas
  44 }
  45
  46 func NewSdnrHandler(conf SdnrConfiguration, client *restclient.Client, data *structures.SliceAssuranceMeas) *SdnrHandler {
  47         return &SdnrHandler{
  48                 config: conf,
  49                 client: client,
  50                 data:   data,
  51         }
  52 }
  53
  54 func (handler SdnrHandler) getRRMInformation(duid string) {
  55         var duRRMPolicyRatio messages.ORanDuRestConf
  56
  57         log.Infof("Get RRM Information from SDNR url: %v", handler.config.SDNRAddress)
  58         if error := handler.client.Get(getUrlForDistributedUnitFunctions(handler.config.SDNRAddress, duid, handler.config.NodeId), &duRRMPolicyRatio, handler.config.SDNRUser, handler.config.SDNRPassword); error == nil {
  59                 prettyPrint(duRRMPolicyRatio.DistributedUnitFunction)
  60         } else {
  61                 log.Warn("Send of Get RRM Information failed! ", error)
  62         }
  63
  64         for _, odu := range duRRMPolicyRatio.DistributedUnitFunction {
  65                 for _, policy := range odu.RRMPolicyRatio {
  66                         log.Infof("Add or Update policy: %+v from DU id: %v", policy.Id, duid)
  67                         handler.data.AddNewPolicy(duid, policy)
  68                 }
  69         }
  70 }
  71
  72 func (handler SdnrHandler) updateDedicatedRatio() {
  73         for _, metric := range handler.data.Metrics {
  74                 policy, check := handler.data.Policies[metric.RRMPolicyRatioId]
  75                 //TODO What happened if dedicated ratio is already higher that default and threshold is exceed?
  76                 if check && policy.PolicyDedicatedRatio <= DEFAULT_DEDICATED_RATIO {
  77                         log.Infof("Send Request to update DedicatedRatio for DU id: %v Policy id: %v", metric.DUId, policy.PolicyRatioId)
  78                         path := getUrlUpdatePolicyDedicatedRatio(handler.config.SDNRAddress, metric.DUId, policy.PolicyRatioId, handler.config.NodeId)
  79                         updatePolicyMessage := policy.GetUpdateDedicatedRatioMessage(metric.SliceDiff, metric.SliceServiceType, NEW_DEDICATED_RATIO)
  80                         prettyPrint(updatePolicyMessage)
  81                         if error := handler.client.Put(path, updatePolicyMessage, nil, handler.config.SDNRUser, handler.config.SDNRPassword); error == nil {
  82                                 log.Infof("Policy Dedicated Ratio for PolicyId: %v was updated to %v", policy.PolicyRatioId, NEW_DEDICATED_RATIO)
  83                         } else {
  84                                 log.Warn("Send of Put Request to update DedicatedRatio failed! ", error)
  85                         }
  86                 }
  87         }
  88 }
  89
  90 func getUrlForDistributedUnitFunctions(host string, duid string, nodeid string) string {
  91         fmt.Print(host + "/rests/data/network-topology:network-topology/topology=topology-netconf/node=" + nodeid + "/yang-ext:mount/o-ran-sc-du-hello-world:network-function/distributed-unit-functions=" + duid)
  92         return host + "/rests/data/network-topology:network-topology/topology=topology-netconf/node=" + nodeid + "/yang-ext:mount/o-ran-sc-du-hello-world:network-function/distributed-unit-functions=" + duid
  93 }
  94
  95 func getUrlUpdatePolicyDedicatedRatio(host string, duid string, policyid string, nodeid string) string {
  96         fmt.Print(host + "/rests/data/network-topology:network-topology/topology=topology-netconf/node=" + nodeid + "/yang-ext:mount/o-ran-sc-du-hello-world:network-function/distributed-unit-functions=" + duid + "/radio-resource-management-policy-ratio=" + policyid)
  97         return host + "/rests/data/network-topology:network-topology/topology=topology-netconf/node=" + nodeid + "/yang-ext:mount/o-ran-sc-du-hello-world:network-function/distributed-unit-functions=" + duid + "/radio-resource-management-policy-ratio=" + policyid
  98 }
  99
 100 func prettyPrint(jsonStruct interface{}) {
 101         b, err := json.MarshalIndent(jsonStruct, "", "  ")
 102         if err != nil {
 103                 fmt.Println("error:", err)
 104         }
 105         fmt.Print(string(b))
 106 }