How can i use #autowire in runnable spring boot - spring

Question

I have few MongoTemplate and Repos and i need to call them using #Autowire in my runnable class that is being executed by exceutor class using multi threading, now the problem is that when i run the application my AutoWire for mongoTempelate and Repos returns null pointer exception.
Executor class:
#Component
public class MessageConsumer implements ConsumerSeekAware {
#Autowired
AlarmDataRepository alarmDataRepository;
int assignableCores = ((Runtime.getRuntime().availableProcessors()));
ExecutorService executor = Executors.newFixedThreadPool(
assignableCores > 1 ? assignableCores : 1
);
int counter = 0;
List<String> uniqueRecords = new ArrayList<String>();
#KafkaListener(topics = "teltonikaTest", groupId = "xyz")
public void processMessages(#Payload List<String> payload, #Header(KafkaHeaders.RECEIVED_PARTITION_ID) List<Integer> partitions, #Header(KafkaHeaders.OFFSET) List<Long> offsets) throws UnsupportedEncodingException, DecodeException {
System.out.println("assignable resources are: " + assignableCores);
log.info("Batch Size is: {}", payload.size());
if(counter==0){
log.info("Teletonica Packets Received!");
}
for (int i = 0; i < payload.size(); i++) {
log.info("processing message='{}' with partition off-set='{}'", payload.get(i), partitions.get(i) + " _" + offsets.get(i));
}
uniqueRecords = payload.stream().distinct().collect(Collectors.toList());
Runnable worker = new TeltonikaWorkerThread(uniqueRecords);
executor.execute(worker);
counter++;
}
}
public class TeltonikaWorkerThread implements Runnable{
List<String> records;
List<CurrentDevice> currentDevices = new ArrayList<>();
#Autowired
CurrentDeviceRepository currentDeviceRepository;
#Autowired
MongoTemplate mongoTemplate;
public TeltonikaWorkerThread(List<String> records) {
this.records = records;
}
public void run() {
try {
processMessage();
} catch (UnsupportedEncodingException e) {
e.printStackTrace();
} catch (DecodeException e) {
e.printStackTrace();
}
}
public void processMessage() throws UnsupportedEncodingException,DecodeException {
for(Object record : records){
if(record!="0"){
try{
int IMEILength = record.toString().indexOf("FF");
String IMEI = record.toString().substring(0,IMEILength);
}
catch (Exception e){
e.printStackTrace();
}
}
}
}
}

Answer 1

If I understand correctly, your problem is about multiple beans and Spring doesn't know which one should be injected. There are several options here.
For example, you can use #Qualifier annotation based on the bean name or #Primary annotation.
If your problem is something else, please add an example to your question.