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/*******************************************************************************
* ============LICENSE_START=======================================================
* son-handler
* ================================================================================
* Copyright (C) 2019-2022 Wipro Limited.
* ==============================================================================
* 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 org.onap.dcaegen2.services.sonhms;
import com.fasterxml.jackson.annotation.JsonInclude.Include;
import com.fasterxml.jackson.databind.ObjectMapper;
import fj.data.Either;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.UUID;
import org.onap.dcaegen2.services.sonhms.child.ChildThreadUtils;
import org.onap.dcaegen2.services.sonhms.child.PnfUtils;
import org.onap.dcaegen2.services.sonhms.dao.HandOverMetricsRepository;
import org.onap.dcaegen2.services.sonhms.dmaap.PolicyDmaapClient;
import org.onap.dcaegen2.services.sonhms.entity.HandOverMetrics;
import org.onap.dcaegen2.services.sonhms.model.AdditionalMeasurements;
import org.onap.dcaegen2.services.sonhms.model.ANRPayload;
import org.onap.dcaegen2.services.sonhms.model.CellConfig;
import org.onap.dcaegen2.services.sonhms.model.Common;
import org.onap.dcaegen2.services.sonhms.model.Configurations;
import org.onap.dcaegen2.services.sonhms.model.Data;
import org.onap.dcaegen2.services.sonhms.model.FapService;
import org.onap.dcaegen2.services.sonhms.model.Flag;
import org.onap.dcaegen2.services.sonhms.model.HoDetails;
import org.onap.dcaegen2.services.sonhms.model.Lte;
import org.onap.dcaegen2.services.sonhms.model.LteCell;
import org.onap.dcaegen2.services.sonhms.model.NeighborListInUse;
import org.onap.dcaegen2.services.sonhms.model.Neighbours;
import org.onap.dcaegen2.services.sonhms.model.Payload;
import org.onap.dcaegen2.services.sonhms.model.PmNotification;
import org.onap.dcaegen2.services.sonhms.model.PolicyData;
import org.onap.dcaegen2.services.sonhms.model.Ran;
import org.onap.dcaegen2.services.sonhms.utils.BeanUtil;
import org.onap.dcaegen2.services.sonhms.utils.DmaapUtils;
import org.onap.dcaegen2.services.sonhms.restclient.ConfigurationClient;
import org.onap.dcaegen2.services.sonhms.restclient.CpsClient;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
public class PmNotificationHandler {
private static Logger log = LoggerFactory.getLogger(PmNotificationHandler.class);
PolicyDmaapClient policyDmaapClient;
public PmNotificationHandler() {
}
public PmNotificationHandler(PolicyDmaapClient policyDmaapClient) {
this.policyDmaapClient = policyDmaapClient;
}
/**
* handle PM notifications.
*/
public Boolean handlePmNotifications(PmNotification pmNotification, int badThreshold, int poorThreshold,
int badCountThreshold) {
Boolean result;
Boolean newEntryFlag = false;
try {
List<HoDetails> hoDetailsList = new ArrayList<>();
List<Neighbours> neighbourList = new ArrayList<>();
String srcCellId = pmNotification.getEvent().getCommonEventHeader().getSourceName();
/*
* check whether entry already exists if yes : read the hometrics and update it
* with latest info else store the current data
*/
HoMetricsComponent hoMetricsComponent = new HoMetricsComponent();
Either<List<HoDetails>, Integer> hoMetrics = hoMetricsComponent.getHoMetrics(srcCellId);
Map<String, Integer> dstCellIdPcPair = new HashMap<>();
Map<String, Integer> dstCellIdBcPair = new HashMap<>();
if (hoMetrics.isLeft()) {
List<HoDetails> oldHoDetailsList = hoMetrics.left().value();
for (HoDetails hodetail : oldHoDetailsList) {
dstCellIdBcPair.put(hodetail.getDstCellId(), hodetail.getBadCount());
dstCellIdPcPair.put(hodetail.getDstCellId(), hodetail.getPoorCount());
}
} else if (hoMetrics.right().value() == 404) {
newEntryFlag = true;
log.info("no history of srcCell found");
}
for (AdditionalMeasurements additionalMeasurements : pmNotification.getEvent().getMeasurementFields()
.getAdditionalMeasurements()) {
int attemptsCount = Integer.parseInt(additionalMeasurements.getHashMap().get("InterEnbOutAtt_X2HO"));
int successCount = Integer.parseInt(additionalMeasurements.getHashMap().get("InterEnbOutSucc_X2HO"));
int successRate = (int)((float) successCount / attemptsCount) * 100;
Neighbours neighbourCell = new Neighbours();
neighbourCell.setHoKpi(successRate);
neighbourCell.setCellId(additionalMeasurements.getName());
neighbourCell.setPlmnId(additionalMeasurements.getHashMap().get("networkId"));
neighbourCell.setPnfName(pmNotification.getEvent().getCommonEventHeader().getReportingEntityName());
neighbourList.add(neighbourCell);
}
if (!neighbourList.isEmpty()) {
log.info("triggering policy to remove bad neighbors");
Flag policyTriggerFlag = BeanUtil.getBean(Flag.class);
while (policyTriggerFlag.getHolder().equals("CHILD")) {
Thread.sleep(100);
}
policyTriggerFlag.setHolder("PM");
result = sendAnrUpdateToPolicy(pmNotification, neighbourList);
log.info("Sent ANR update to policy {}", result);
policyTriggerFlag.setHolder("NONE");
}
if (!hoDetailsList.isEmpty() && newEntryFlag) {
result = saveToHandOverMetrics(hoDetailsList, srcCellId);
log.debug("save HO metrics result {} ", result);
} else if (!hoDetailsList.isEmpty()) {
String hoDetailsString = null;
ObjectMapper mapper = new ObjectMapper();
try {
hoDetailsString = mapper.writeValueAsString(hoDetailsList);
} catch (Exception e) {
log.error("Error in writing handover metrics json ", e);
return false;
}
hoMetricsComponent.update(hoDetailsString, srcCellId);
}
} catch (Exception e) {
log.error("Error in handlePmNotifications ", e);
return false;
}
return true;
}
private Boolean sendAnrUpdateToPolicy(PmNotification pmNotification, List<Neighbours> neighbourList) {
ObjectMapper mapper = new ObjectMapper();
try {
mapper.setSerializationInclusion(Include.NON_NULL);
String cellId = pmNotification.getEvent().getCommonEventHeader().getSourceName();
String pnfName = pmNotification.getEvent().getCommonEventHeader().getReportingEntityName();
String plmnId = pmNotification.getEvent().getMeasurementFields()
.getAdditionalMeasurements().get(0).getHashMap().get("networkId");
String ric_id = CpsClient.getRicId(cellId);
ANRPayload payload = new ANRPayload("CreatePolicy",1,1,ric_id,
(new PolicyData(pnfName,plmnId,cellId,neighbourList)));
log.info("payload : {}", payload);
String anrUpdateString = mapper.writeValueAsString(payload);
ChildThreadUtils childUtils = new ChildThreadUtils(ConfigPolicy.getInstance(), new PnfUtils(),
new PolicyDmaapClient(new DmaapUtils(), Configuration.getInstance()), new HoMetricsComponent());
String requestId = UUID.randomUUID().toString();
String notification = childUtils.getNotificationString(
pmNotification.getEvent().getCommonEventHeader().getReportingEntityName(), requestId,
anrUpdateString, System.currentTimeMillis(), "ModifyA1Policy");
log.info("Policy Notification: {}", notification);
Boolean result = policyDmaapClient.sendNotificationToPolicy(notification);
log.info("send notification to policy result {} ", result);
} catch (Exception e) {
log.error("Exception in sending Anr update to policy ", e);
return false;
}
return true;
}
private Boolean saveToHandOverMetrics(List<HoDetails> hoDetailsList, String srcCellId) {
ObjectMapper mapper = new ObjectMapper();
String hoDetailsString = null;
try {
hoDetailsString = mapper.writeValueAsString(hoDetailsList);
} catch (Exception e) {
log.error("Error in writing handover metrics json ", e);
return false;
}
HandOverMetrics handOverMetrics = new HandOverMetrics();
handOverMetrics.setHoDetails(hoDetailsString);
handOverMetrics.setSrcCellId(srcCellId);
HandOverMetricsRepository handOverMetricsRepository = BeanUtil.getBean(HandOverMetricsRepository.class);
handOverMetricsRepository.save(handOverMetrics);
return true;
}
}
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