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/*
* Copyright (C) 2022 CAPGEMINI ENGINEERING.
*
* 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.
*/
package org.onap.ranapp.kafka.listener;
import java.time.Duration;
import java.util.LinkedList;
import java.util.List;
import org.apache.kafka.clients.consumer.ConsumerRecord;
import org.apache.kafka.clients.consumer.ConsumerRecords;
import org.apache.kafka.clients.consumer.KafkaConsumer;
import org.json.JSONObject;
import org.onap.ranapp.kafka.model.appmodels.ANRInputMessage;
import org.onap.ranapp.kafka.model.appmodels.ANROutputMessage;
import org.onap.ranapp.kafka.model.appmodels.CellConfig;
import org.onap.ranapp.kafka.model.appmodels.Common;
import org.onap.ranapp.kafka.model.appmodels.Configuration;
import org.onap.ranapp.kafka.model.appmodels.Data;
import org.onap.ranapp.kafka.model.appmodels.FAPService;
import org.onap.ranapp.kafka.model.appmodels.LTE;
import org.onap.ranapp.kafka.model.appmodels.LTECell;
import org.onap.ranapp.kafka.model.appmodels.NeighborListInUse;
import org.onap.ranapp.kafka.model.appmodels.PayloadOutput;
import org.onap.ranapp.kafka.model.appmodels.RAN;
import org.onap.ranapp.kafka.model.appmodels.ResponsetoA1;
import org.onap.ranapp.models.DeviceData;
import org.onap.ranapp.models.MessageType;
import org.onap.ranapp.websocket.WebsocketClient;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.kafka.core.KafkaTemplate;
import org.springframework.stereotype.Service;
import com.fasterxml.jackson.databind.ObjectMapper;
@Service
public class RanAppEventConsumer {
private final Logger logger = LoggerFactory.getLogger(RanAppEventConsumer.class);
public RanAppEventConsumer() {
}
@Value("${ranapp.hokpi1_threshold}")
private int hokpiThreshold;
@Value(value = "${kafka.bootstrapAddress}")
private String bootstrapAddress;
ObjectMapper objectMapper = new ObjectMapper();
@Autowired
KafkaTemplate<String, Object> Kafkatemplate;
@Autowired
WebsocketClient websocketclient;
ResponsetoA1 response=new ResponsetoA1();
public static String requestTopicName,responseTopicName,kafkakeyName;
//@KafkaListener(topics = "#{topicUtil.suffixTopics()}", groupId = "${ranapp.testing.topic.id}", containerFactory = "kafkaListenerFactory")
public void consume(KafkaConsumer<String,String> consumer, String requesttopicName, String responsetopicName) {
try {
requestTopicName=requesttopicName;
responseTopicName=responsetopicName;
WebsocketClient.requestTopicName=requesttopicName;
WebsocketClient.responseTopicName=responsetopicName;
while(true){
ConsumerRecords<String,String> records=consumer.poll(Duration.ofMillis(5000));
for(ConsumerRecord<String,String> record: records){
String msg=record.value().translateEscapes().strip().stripIndent().trim().replaceAll("(?m)^[ \t]*\r?\n", "");
msg=msg.substring( 1, msg.length() - 1 );
logger.info("Key: "+ record.key() + ", Value:" +msg);
logger.info("Partition:" + record.partition()+",Offset:"+record.offset());
JSONObject obj_name = new JSONObject(msg);
logger.info(String.format("ranapp message recieved \n-> %s \n", obj_name));
kafkakeyName=record.key();
WebsocketClient.kafkakeyName=record.key();
ANRInputMessage ANRInputMessage=null;
try {
logger.info(String.format("Parsing the incoming json object to ANRInputMessage class"));
ANRInputMessage = objectMapper.readValue(obj_name.toString(), ANRInputMessage.class);
} catch (Exception ex) {
logger.info(String.format(
"Invalid Message received . Exception while parsing JSON object -> %s",
ex.getLocalizedMessage()));
ex.printStackTrace();
return;
}
try {
logger.info(String.format("Invoking convertInputMessagetoANROutput Function"));
ANROutputMessage ANROutputMessage= convertInputMessagetoANROutput(ANRInputMessage);
logger.info(String.format("ANROutputMessage"));
logger.info(String.format(objectMapper.writeValueAsString(ANROutputMessage)));
// Output Payload is sent as Websocket message to RC
DeviceData devicedata=new DeviceData();
devicedata.setMessage(objectMapper.writeValueAsString(ANROutputMessage.getPayload()));
devicedata.setType(MessageType.KAFKA_MSG);
logger.info(String.format("Sending Output Payload to RC WS Server"));
websocketclient.sendMessage(devicedata);
} catch (Exception e) {
e.getLocalizedMessage();
e.printStackTrace();
}
}
}}catch (Exception e) {
e.getLocalizedMessage();
e.printStackTrace();
}
}
private ANROutputMessage convertInputMessagetoANROutput(ANRInputMessage ANRInputMessage) {
// TODO Auto-generated method stub
logger.info(String.format("Creating OutputMessage from ANRInput Function"));
ANROutputMessage ANROutputMessage=new ANROutputMessage();
logger.info(String.format("initializing output parameters"));
//initializing Output Params
PayloadOutput payloadOutput=new PayloadOutput();
List<Configuration> listconfiguration= new LinkedList<Configuration>();
Configuration configuration=new Configuration();
Data data=new Data();
FAPService fapservice=new FAPService();
CellConfig cellconfig=new CellConfig();
LTE lte=new LTE();
RAN ran=new RAN();
Common common=new Common();
NeighborListInUse neighbourlistinuse=new NeighborListInUse();
List<LTECell> listltecell=new LinkedList<LTECell>();
logger.info(String.format("Iterating Neighbour cells to validate KPI"));
// Parsing the payload.policydata into output message payload
common.setCellIdentity(ANRInputMessage.getPayload().getCellID());
int length=ANRInputMessage.getPayload().getNeighbours().size();
for(int i=0;i<length;i++) {
LTECell ltecell=new LTECell();
ltecell.setIdGNBCUCPFunction(ANRInputMessage.getPayload().getNeighbours().get(i).getPNFName());
ltecell.setPlmnid(ANRInputMessage.getPayload().getNeighbours().get(i).getPlmnid());
ltecell.setnRTCI(0);
ltecell.setIdNRCellRelation(ANRInputMessage.getPayload().getNeighbours().get(i).getCellID());
//Identify KPI Measurement
if(ANRInputMessage.getPayload().getNeighbours().get(i).getHoKpi1() < hokpiThreshold)
ltecell.setIsHOAllowed("true");
else
ltecell.setIsHOAllowed("false");
listltecell.add(ltecell);
}
neighbourlistinuse.setLTECell(listltecell);
neighbourlistinuse.setLTECellNumberOfEntries(Integer.toString(listltecell.size()));
ran.setCommon(common);
ran.setNeighborListInUse(neighbourlistinuse);
lte.setRan(ran);
cellconfig.setLte(lte);
fapservice.setIdNRCellCU(ANRInputMessage.getPayload().getPNFName());
fapservice.setCellConfig(cellconfig);
data.setFAPService(fapservice);
configuration.setData(data);
//how do we iterate in a standard way, currently working in a static way
listconfiguration.add(configuration);
payloadOutput.setConfigurations(listconfiguration);
ANROutputMessage.setPayload(payloadOutput);
logger.info(String.format("returning back output msg"));
return ANROutputMessage;
}
}
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