Seed code for O-DU slice assurance new repo
[nonrtric/rapp/ransliceassurance.git] / smoversion / stub / simulator.go
diff --git a/smoversion/stub/simulator.go b/smoversion/stub/simulator.go
new file mode 100644 (file)
index 0000000..aef85d8
--- /dev/null
@@ -0,0 +1,377 @@
+// -
+//   ========================LICENSE_START=================================
+//   O-RAN-SC
+//   %%
+//   Copyright (C) 2021: Nordix 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.
+//   ========================LICENSE_END===================================
+//
+
+package main
+
+import (
+       "encoding/csv"
+       "encoding/json"
+       "flag"
+       "fmt"
+       "math/rand"
+       "net/http"
+       "os"
+       "strconv"
+       "sync"
+       "time"
+
+       "github.com/gorilla/mux"
+       "oransc.org/usecase/oduclosedloop/messages"
+
+       log "github.com/sirupsen/logrus"
+)
+
+const THRESHOLD_TPUT int = 7000
+
+type SliceAssuranceInformation struct {
+       duId                 string
+       cellId               string
+       sd                   int
+       sst                  int
+       metricName           string
+       metricValue          int
+       policyRatioId        string
+       policyMaxRatio       int
+       policyMinRatio       int
+       policyDedicatedRatio int
+}
+
+var data []*SliceAssuranceInformation
+var messagesToSend []messages.Measurement
+
+func loadData() {
+       lines, err := GetCsvFromFile("test-data.csv")
+       if err != nil {
+               panic(err)
+       }
+       for _, line := range lines {
+               sai := SliceAssuranceInformation{
+                       duId:                 line[0],
+                       cellId:               line[1],
+                       sd:                   toInt(line[2]),
+                       sst:                  toInt(line[3]),
+                       metricName:           line[4],
+                       metricValue:          toInt(line[5]),
+                       policyRatioId:        line[6],
+                       policyMaxRatio:       toInt(line[7]),
+                       policyMinRatio:       toInt(line[8]),
+                       policyDedicatedRatio: toInt(line[9]),
+               }
+               data = append(data, &sai)
+       }
+}
+
+func GetCsvFromFile(name string) ([][]string, error) {
+       if csvFile, err := os.Open(name); err == nil {
+               defer csvFile.Close()
+               reader := csv.NewReader(csvFile)
+               reader.FieldsPerRecord = -1
+               if csvData, err := reader.ReadAll(); err == nil {
+                       return csvData, nil
+               } else {
+                       return nil, err
+               }
+       } else {
+               return nil, err
+       }
+}
+
+func toInt(num string) int {
+       res, err := strconv.Atoi(num)
+       if err != nil {
+               return -1
+       }
+       return res
+}
+
+func main() {
+       rand.Seed(time.Now().UnixNano())
+
+       portSdnr := flag.Int("sdnr-port", 3904, "The port this SDNR stub will listen on")
+       portDmaapMR := flag.Int("dmaap-port", 3905, "The port this Dmaap message router will listen on")
+       flag.Parse()
+
+       loadData()
+
+       wg := new(sync.WaitGroup)
+       wg.Add(2)
+
+       go func() {
+
+               r := mux.NewRouter()
+               r.HandleFunc("/rests/data/network-topology:network-topology/topology=topology-netconf/node={NODE-ID}/yang-ext:mount/o-ran-sc-du-hello-world:network-function/distributed-unit-functions={O-DU-ID}", getSdnrResponseMessage).Methods(http.MethodGet)
+               r.HandleFunc("/rests/data/network-topology:network-topology/topology=topology-netconf/node={NODE-ID}/yang-ext:mount/o-ran-sc-du-hello-world:network-function/distributed-unit-functions={O-DU-ID}/radio-resource-management-policy-ratio={POLICY-ID}", updateRRMPolicyDedicatedRatio).Methods(http.MethodPut)
+
+               fmt.Println("Starting SDNR stub on port: ", *portSdnr)
+
+               log.Fatal(http.ListenAndServe(fmt.Sprintf(":%v", *portSdnr), r))
+               wg.Done()
+       }()
+
+       go func() {
+
+               r := mux.NewRouter()
+               r.HandleFunc("/events/unauthenticated.VES_O_RAN_SC_HELLO_WORLD_PM_STREAMING_OUTPUT/myG/C1", sendDmaapMRMessages).Methods(http.MethodGet)
+
+               fmt.Println("Starting DmaapMR stub on port: ", *portDmaapMR)
+
+               log.Fatal(http.ListenAndServe(fmt.Sprintf(":%v", *portDmaapMR), r))
+               wg.Done()
+       }()
+
+       wg.Wait()
+}
+
+func getSdnrResponseMessage(w http.ResponseWriter, r *http.Request) {
+       vars := mux.Vars(r)
+       log.Info("Get messages for RRM Policy Ratio information for O-Du ID ", vars["O-DU-ID"])
+
+       distUnitFunctions := getDistributedUnitFunctionMessage(vars["O-DU-ID"])
+
+       respondWithJSON(w, http.StatusOK, distUnitFunctions)
+}
+
+func getDistributedUnitFunctionMessage(oduId string) messages.ORanDuRestConf {
+
+       var policies []messages.RRMPolicyRatio
+       keys := make(map[string]bool)
+       for _, entry := range data {
+               if _, value := keys[entry.policyRatioId]; !value {
+                       keys[entry.policyRatioId] = true
+                       message := messages.RRMPolicyRatio{
+
+                               Id:                      entry.policyRatioId,
+                               AdmState:                "locked",
+                               UserLabel:               entry.policyRatioId,
+                               RRMPolicyMaxRatio:       entry.policyMaxRatio,
+                               RRMPolicyMinRatio:       entry.policyMinRatio,
+                               RRMPolicyDedicatedRatio: entry.policyDedicatedRatio,
+                               ResourceType:            "prb",
+                               RRMPolicyMembers: []messages.RRMPolicyMember{
+                                       {
+                                               MobileCountryCode:   "310",
+                                               MobileNetworkCode:   "150",
+                                               SliceDifferentiator: entry.sd,
+                                               SliceServiceType:    entry.sst,
+                                       },
+                               },
+                       }
+                       policies = append(policies, message)
+               }
+       }
+
+       var publicLandMobileNetworks []messages.PublicLandMobileNetworks
+       for _, entry := range data {
+               publicLandMobileNetwork := messages.PublicLandMobileNetworks{
+                       MobileCountryCode:   "310",
+                       MobileNetworkCode:   "150",
+                       SliceDifferentiator: entry.sd,
+                       SliceServiceType:    entry.sst,
+               }
+               publicLandMobileNetworks = append(publicLandMobileNetworks, publicLandMobileNetwork)
+       }
+
+       var supportedSnssaiSubcounterInstances []messages.SupportedSnssaiSubcounterInstances
+       for _, entry := range data {
+               supportedSnssaiSubcounterInstance := messages.SupportedSnssaiSubcounterInstances{
+                       SliceDifferentiator: entry.sd,
+                       SliceServiceType:    entry.sst,
+               }
+               supportedSnssaiSubcounterInstances = append(supportedSnssaiSubcounterInstances, supportedSnssaiSubcounterInstance)
+       }
+
+       cell := messages.Cell{
+               Id:             "cell-1",
+               LocalId:        1,
+               PhysicalCellId: 1,
+               BaseStationChannelBandwidth: messages.BaseStationChannelBandwidth{
+                       Uplink:              83000,
+                       Downlink:            80000,
+                       SupplementaryUplink: 84000,
+               },
+               OperationalState:         "enabled",
+               TrackingAreaCode:         10,
+               AdmState:                 "unlocked",
+               PublicLandMobileNetworks: publicLandMobileNetworks,
+               SupportedMeasurements: []messages.SupportedMeasurements{
+                       {
+                               PerformanceMeasurementType:         "o-ran-sc-du-hello-world:user-equipment-average-throughput-uplink",
+                               SupportedSnssaiSubcounterInstances: supportedSnssaiSubcounterInstances,
+                       },
+                       {
+                               PerformanceMeasurementType:         "o-ran-sc-du-hello-world:user-equipment-average-throughput-downlink",
+                               SupportedSnssaiSubcounterInstances: supportedSnssaiSubcounterInstances,
+                       },
+               },
+               TrafficState: "active",
+               AbsoluteRadioFrequencyChannelNumber: messages.AbsoluteRadioFrequencyChannelNumber{
+                       Uplink:              14000,
+                       Downlink:            15000,
+                       SupplementaryUplink: 14500,
+               },
+               UserLabel: "cell-1",
+               SynchronizationSignalBlock: messages.SynchronizationSignalBlock{
+                       Duration:               2,
+                       FrequencyChannelNumber: 12,
+                       Periodicity:            10,
+                       SubcarrierSpacing:      30,
+                       Offset:                 3,
+               },
+       }
+
+       distUnitFunction := messages.DistributedUnitFunction{
+               Id:               oduId,
+               OperationalState: "enabled",
+               AdmState:         "unlocked",
+               UserLabel:        oduId,
+               Cell: []messages.Cell{
+                       cell,
+               },
+               RRMPolicyRatio: policies,
+       }
+
+       duRRMPolicyRatio := messages.ORanDuRestConf{
+               DistributedUnitFunction: []messages.DistributedUnitFunction{
+                       distUnitFunction,
+               },
+       }
+
+       return duRRMPolicyRatio
+}
+
+func updateRRMPolicyDedicatedRatio(w http.ResponseWriter, r *http.Request) {
+       var policies struct {
+               RRMPolicies []messages.RRMPolicyRatio `json:"radio-resource-management-policy-ratio"`
+       }
+       decoder := json.NewDecoder(r.Body)
+
+       if err := decoder.Decode(&policies); err != nil {
+               respondWithError(w, http.StatusBadRequest, "Invalid request payload")
+               return
+       }
+       defer r.Body.Close()
+
+       prMessages := policies.RRMPolicies
+       log.Infof("Post request to update RRMPolicyDedicatedRatio %+v", prMessages)
+       findAndUpdatePolicy(prMessages)
+       respondWithJSON(w, http.StatusOK, map[string]string{"status": "200"})
+}
+
+func findAndUpdatePolicy(rRMPolicyRatio []messages.RRMPolicyRatio) {
+       for _, policy := range rRMPolicyRatio {
+               for _, entry := range data {
+                       if entry.policyRatioId == policy.Id {
+                               log.Infof("update Policy Dedicated Ratio: value for policy %+v\n Old value: %v New value: %v ", policy, entry.policyDedicatedRatio, policy.RRMPolicyDedicatedRatio)
+                               entry.policyDedicatedRatio = policy.RRMPolicyDedicatedRatio
+                               if entry.metricValue > THRESHOLD_TPUT {
+                                       entry.metricValue = rand.Intn(THRESHOLD_TPUT)
+                               }
+                               messagesToSend = append(messagesToSend, generateMeasurementEntry(entry))
+                       }
+               }
+       }
+}
+
+func respondWithError(w http.ResponseWriter, code int, message string) {
+       respondWithJSON(w, code, map[string]string{"error": message})
+}
+
+func respondWithJSON(w http.ResponseWriter, code int, payload interface{}) {
+       response, _ := json.Marshal(payload)
+
+       w.Header().Set("Content-Type", "application/json")
+       w.WriteHeader(code)
+       w.Write(response)
+}
+
+func sendDmaapMRMessages(w http.ResponseWriter, r *http.Request) {
+       log.Info("Send Dmaap messages")
+       entry := data[rand.Intn(5)]
+
+       maxTput := THRESHOLD_TPUT + 100
+       randomTput := rand.Intn(maxTput-THRESHOLD_TPUT+1) + THRESHOLD_TPUT
+       if randomTput%3 == 0 {
+               log.Info("Using tput value higher than THRESHOLD_TPUT ", randomTput)
+               entry.metricValue = randomTput
+       }
+       randomEventId := rand.Intn(10000)
+       messagesToSend = append(messagesToSend, generateMeasurementEntry(entry))
+
+       message := messages.StdDefinedMessage{
+               Event: messages.Event{
+                       CommonEventHeader: messages.CommonEventHeader{
+                               Domain:                  "stndDefined",
+                               EventId:                 "pm-1_16442" + strconv.Itoa(randomEventId),
+                               EventName:               "stndDefined_performanceMeasurementStreaming",
+                               EventType:               "performanceMeasurementStreaming",
+                               Sequence:                825,
+                               Priority:                "Low",
+                               ReportingEntityId:       "",
+                               ReportingEntityName:     "O-DU-1122",
+                               SourceId:                "",
+                               SourceName:              "O-DU-1122",
+                               StartEpochMicrosec:      1644252450000000,
+                               LastEpochMicrosec:       1644252480000000,
+                               NfNamingCode:            "SIM-O-DU",
+                               NfVendorName:            "O-RAN-SC SIM Project",
+                               StndDefinedNamespace:    "o-ran-sc-du-hello-world-pm-streaming-oas3",
+                               TimeZoneOffset:          "+00:00",
+                               Version:                 "4.1",
+                               VesEventListenerVersion: "7.2.1",
+                       },
+                       StndDefinedFields: messages.StndDefinedFields{
+                               StndDefinedFieldsVersion: "1.0",
+                               SchemaReference:          "https://gerrit.o-ran-sc.org/r/gitweb?p=scp/oam/modeling.git;a=blob_plain;f=data-model/oas3/experimental/o-ran-sc-du-hello-world-oas3.json;hb=refs/heads/master",
+                               Data: messages.Data{
+                                       DataId:              "pm-1_1644252450",
+                                       StartTime:           "2022-02-07T16:47:30.0Z",
+                                       AdministrativeState: "unlocked",
+                                       OperationalState:    "enabled",
+                                       UserLabel:           "pm",
+                                       JobTag:              "my-job-tag",
+                                       GranularityPeriod:   30,
+                                       Measurements:        messagesToSend,
+                               },
+                       },
+               },
+       }
+
+       fmt.Printf("Sending Dmaap message:\n %+v\n", message)
+
+       messageAsByteArray, _ := json.Marshal(message)
+       response := [1]string{string(messageAsByteArray)}
+
+       time.Sleep(time.Duration(rand.Intn(3)) * time.Second)
+       respondWithJSON(w, http.StatusOK, response)
+
+       messagesToSend = nil
+}
+
+func generateMeasurementEntry(entry *SliceAssuranceInformation) messages.Measurement {
+
+       measurementTypeInstanceReference := "/o-ran-sc-du-hello-world:network-function/distributed-unit-functions[id='" + entry.duId + "']/cell[id='" + entry.cellId + "']/supported-measurements[performance-measurement-type='(urn:o-ran-sc:yang:o-ran-sc-du-hello-world?revision=2021-11-23)" + entry.metricName + "']/supported-snssai-subcounter-instances[slice-differentiator='" + strconv.Itoa(entry.sd) + "'][slice-service-type='" + strconv.Itoa(entry.sst) + "']"
+       meas := messages.Measurement{
+
+               MeasurementTypeInstanceReference: measurementTypeInstanceReference,
+               Value:                            entry.metricValue,
+               Unit:                             "kbit/s",
+       }
+       return meas
+}