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/*-
* ============LICENSE_START=======================================================
* Copyright (C) 2021 Deutsche Telekom AG. All rights reserved.
* Copyright (C) 2022 Wipro Limited. All rights reserved.
* ================================================================================
* 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.
*
* SPDX-License-Identifier: Apache-2.0
* ============LICENSE_END=========================================================
*/
package org.onap.dcaegen2.kpi.computation;
import java.math.BigDecimal;
import java.math.RoundingMode;
import java.util.ArrayList;
import java.util.List;
import java.util.LinkedList;
import java.util.ListIterator;
import java.util.Map;
import java.util.Optional;
import java.util.UUID;
import org.onap.dcaegen2.kpi.config.ControlLoopSchemaType;
import org.onap.dcaegen2.kpi.exception.KpiComputationException;
import org.onap.dcaegen2.kpi.models.CommonEventHeader;
import org.onap.dcaegen2.kpi.models.KpiOperand;
import org.onap.dcaegen2.kpi.models.MeasDataCollection;
import org.onap.dcaegen2.kpi.models.MeasInfo;
import org.onap.dcaegen2.kpi.models.MeasInfoId;
import org.onap.dcaegen2.kpi.models.MeasResult;
import org.onap.dcaegen2.kpi.models.MeasTypes;
import org.onap.dcaegen2.kpi.models.MeasValues;
import org.onap.dcaegen2.kpi.models.Perf3gppFields;
import org.onap.dcaegen2.kpi.models.PerformanceEvent;
import org.onap.dcaegen2.kpi.models.VesEvent;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
/**
* RatioKpiComputation.
*
* @author Tarun Agrawal
*/
public class RatioKpiComputation extends BaseKpiComputation {
private static Logger logger = LoggerFactory.getLogger(RatioKpiComputation.class);
@Override
public List <VesEvent> handle(PerformanceEvent pmEvent, ControlLoopSchemaType schemaType,
Map <String,List <KpiOperand>> measInfoMap, String measType, List < String > operands) {
final List < VesEvent > vesEvents = new LinkedList < > ();
if (operands.size() == 2) {
List <KpiOperand> k1 = measInfoMap.get(operands.get(0));
List <KpiOperand> k2 = measInfoMap.get(operands.get(1));
if (k1.size() != k2.size()) {
return null;
}
ListIterator <KpiOperand> listIteratorK1 = k1.listIterator();
ListIterator <KpiOperand> listIteratorK2 = k2.listIterator();
while (listIteratorK1.hasNext()) {
final KpiOperand myK1 = listIteratorK1.next();
final KpiOperand myK2 = listIteratorK2.next();
String value = myK1.getValue().toString();
List<MeasInfo> measInfoList = Optional.of(pmEvent).map(PerformanceEvent::getPerf3gppFields)
.map(Perf3gppFields::getMeasDataCollection)
.map(MeasDataCollection::getMeasInfoList)
.orElseThrow(() -> new KpiComputationException("MeasInfoList not present"));
int pValue = 0;
for(MeasInfo meas: measInfoList){
for(MeasValues measValue: meas.getMeasValuesList()){
for(MeasResult measResult: measValue.getMeasResults()){
String s = measResult.getSvalue();
if(s.equalsIgnoreCase(value)){
pValue = measResult.getPvalue();
}
}
}
}
String operand = null;
for(MeasInfo measInfo: measInfoList){
List<String> measTypesList = measInfo.getMeasTypes().getMeasTypesList();
if(!measTypesList.isEmpty()){
for(String s : measTypesList){
int index = measTypesList.indexOf(s);
if( index == (pValue-1)){
operand = s;
}
}
}
}
StringBuilder sb = new StringBuilder();
if(!operand.isEmpty()){
char[] chars = operand.toCharArray();
for(char c : chars){
if(Character.isDigit(c)){
sb.append(c);
}
}
}
else{
logger.info("operand is empty");
}
String snssai = sb.toString();
StringBuilder sb1 = new StringBuilder();
if(!measType.isEmpty()){
char[] chars = measType.toCharArray();
for(char c : chars){
if(!Character.isDigit(c)){
sb1.append(c);
}
}
}
else{
logger.info("measType is empty");
}
String meas = sb1.toString();
String measTypes = meas + snssai;
if (myK2.getValue().compareTo(BigDecimal.ZERO) != 0) {
final BigDecimal result = myK1.getValue().multiply(new BigDecimal("100"))
.divide(myK2.getValue(), 0, RoundingMode.HALF_UP);
vesEvents.add(generateVesEvent(pmEvent, schemaType.toString(), result, measTypes));
}
}
}
else {
throw new KpiComputationException("Insufficient number of operands to perform Ratio computation");
}
return vesEvents;
}
}
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