+// -
+// ========================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 structures
+
+import (
+ "fmt"
+ "regexp"
+ "strconv"
+
+ log "github.com/sirupsen/logrus"
+ "oransc.org/usecase/oduclosedloop/messages"
+)
+
+type MapKey struct {
+ Duid string
+ sd int
+ sst int
+}
+
+type SliceAssuranceMeas struct {
+ Metrics map[MapKey]*SliceMetric
+ Policies map[string]*PolicyRatio
+}
+
+func NewSliceAssuranceMeas() *SliceAssuranceMeas {
+ s := SliceAssuranceMeas{}
+ s.Metrics = make(map[MapKey]*SliceMetric)
+ s.Policies = make(map[string]*PolicyRatio)
+ return &s
+}
+
+func (sa *SliceAssuranceMeas) AddNewPolicy(duid string, rrmPolicyRatio messages.RRMPolicyRatio) {
+ for _, policyMember := range rrmPolicyRatio.RRMPolicyMembers {
+ metric := sa.GetSliceMetric(duid, policyMember.SliceDifferentiator, policyMember.SliceServiceType)
+ if metric != nil {
+ pr := NewPolicyRatio(rrmPolicyRatio.Id, rrmPolicyRatio.RRMPolicyMaxRatio, rrmPolicyRatio.RRMPolicyMinRatio, rrmPolicyRatio.RRMPolicyDedicatedRatio)
+ _, check := sa.Policies[pr.PolicyRatioId]
+ if !check {
+ log.Infof(" new policy has been added %+v", *pr)
+ }
+ sa.Policies[pr.PolicyRatioId] = pr
+ metric.RRMPolicyRatioId = rrmPolicyRatio.Id
+
+ }
+ }
+}
+
+func (sa *SliceAssuranceMeas) GetSliceMetric(duid string, sd int, sst int) *SliceMetric {
+ key := MapKey{duid, sd, sst}
+ value, check := sa.Metrics[key]
+
+ if check {
+ return value
+ }
+
+ return nil
+}
+
+func (sa *SliceAssuranceMeas) AddOrUpdateMetric(meas messages.Measurement) (string, error) {
+
+ var duid string
+ var sd, sst int
+
+ regex := *regexp.MustCompile(`\/(.*)network-function\/distributed-unit-functions\[id=\'(.*)\'\]\/cell\[id=\'(.*)\'\]\/supported-measurements\[performance-measurement-type=\'(.*)\'\]\/supported-snssai-subcounter-instances\[slice-differentiator=\'(\d+)\'\]\[slice-service-type=\'(\d+)\'\]`)
+ res := regex.FindAllStringSubmatch(meas.MeasurementTypeInstanceReference, -1)
+
+ if res != nil && len(res[0]) == 7 {
+ duid = res[0][2]
+ sd = toInt(res[0][5])
+ sst = toInt(res[0][6])
+
+ key := MapKey{duid, sd, sst}
+ value, check := sa.Metrics[key]
+
+ if check {
+ sa.updateMetric(key, value, res[0][4], meas.Value)
+ } else {
+ // Only add new one if value exceeds threshold
+ sa.addMetric(res, meas.Value)
+ }
+ } else {
+ return duid, fmt.Errorf(" wrong format for MeasurementTypeInstanceReference")
+ }
+ return duid, nil
+}
+
+func (sa *SliceAssuranceMeas) addMetric(res [][]string, metricValue int) {
+ if metricValue > 700 {
+ metric := NewSliceMetric(res[0][2], res[0][3], toInt(res[0][5]), toInt(res[0][6]))
+ metric.PM[res[0][3]] = metricValue
+ key := MapKey{res[0][2], toInt(res[0][5]), toInt(res[0][6])}
+ sa.Metrics[key] = metric
+ log.Infof(" new metric has been added %+v", *metric)
+ }
+}
+
+func (sa *SliceAssuranceMeas) updateMetric(key MapKey, value *SliceMetric, metricName string, metricValue int) {
+ if metricValue < 700 {
+ delete(sa.Metrics, key)
+ log.Infof(" metric with key %+v has been deleted", key)
+ } else {
+ value.PM[metricName] = metricValue
+ log.Infof(" metric value has been updated, new value: %v", metricValue)
+ }
+}
+
+func toInt(num string) int {
+ res, err := strconv.Atoi(num)
+ if err != nil {
+ return -1
+ }
+ return res
+}
+
+func (sa *SliceAssuranceMeas) PrintStructures() {
+ fmt.Printf("SliceAssurance Metrics: \n")
+ for key, metric := range sa.Metrics {
+ fmt.Printf("Key: %+v\n", key)
+ fmt.Printf("Metric: %+v\n", metric)
+ }
+ fmt.Printf("SliceAssurance Policies: \n")
+ for key, metric := range sa.Policies {
+ fmt.Printf("Key: %+v\n", key)
+ fmt.Printf("Metric: %+v\n", metric)
+ }
+}