Examples with PartitionChangeEvent org.thingsboard.server.queue.discovery.event.PartitionChangeEvent used on opensource projects

Example 1 with PartitionChangeEvent

use of org.thingsboard.server.queue.discovery.event.PartitionChangeEvent in project thingsboard by thingsboard.

the class HashPartitionService method recalculatePartitions.

@Override
public synchronized void recalculatePartitions(ServiceInfo currentService, List<ServiceInfo> otherServices) {
    tbTransportServicesByType.clear();
    logServiceInfo(currentService);
    otherServices.forEach(this::logServiceInfo);
    Map<ServiceQueueKey, List<ServiceInfo>> queueServicesMap = new HashMap<>();
    addNode(queueServicesMap, currentService);
    for (ServiceInfo other : otherServices) {
        addNode(queueServicesMap, other);
    }
    queueServicesMap.values().forEach(list -> list.sort(Comparator.comparing(ServiceInfo::getServiceId)));
    ConcurrentMap<ServiceQueueKey, List<Integer>> oldPartitions = myPartitions;
    TenantId myIsolatedOrSystemTenantId = getSystemOrIsolatedTenantId(currentService);
    myPartitions = new ConcurrentHashMap<>();
    partitionSizes.forEach((serviceQueue, size) -> {
        ServiceQueueKey myServiceQueueKey = new ServiceQueueKey(serviceQueue, myIsolatedOrSystemTenantId);
        for (int i = 0; i < size; i++) {
            ServiceInfo serviceInfo = resolveByPartitionIdx(queueServicesMap.get(myServiceQueueKey), i);
            if (currentService.equals(serviceInfo)) {
                ServiceQueueKey serviceQueueKey = new ServiceQueueKey(serviceQueue, getSystemOrIsolatedTenantId(serviceInfo));
                myPartitions.computeIfAbsent(serviceQueueKey, key -> new ArrayList<>()).add(i);
            }
        }
    });
    tpiCache.clear();
    oldPartitions.forEach((serviceQueueKey, partitions) -> {
        if (!myPartitions.containsKey(serviceQueueKey)) {
            log.info("[{}] NO MORE PARTITIONS FOR CURRENT KEY", serviceQueueKey);
            applicationEventPublisher.publishEvent(new PartitionChangeEvent(this, serviceQueueKey, Collections.emptySet()));
        }
    });
    myPartitions.forEach((serviceQueueKey, partitions) -> {
        if (!partitions.equals(oldPartitions.get(serviceQueueKey))) {
            log.info("[{}] NEW PARTITIONS: {}", serviceQueueKey, partitions);
            Set<TopicPartitionInfo> tpiList = partitions.stream().map(partition -> buildTopicPartitionInfo(serviceQueueKey, partition)).collect(Collectors.toSet());
            applicationEventPublisher.publishEvent(new PartitionChangeEvent(this, serviceQueueKey, tpiList));
        }
    });
    if (currentOtherServices == null) {
        currentOtherServices = new ArrayList<>(otherServices);
    } else {
        Set<ServiceQueueKey> changes = new HashSet<>();
        Map<ServiceQueueKey, List<ServiceInfo>> currentMap = getServiceKeyListMap(currentOtherServices);
        Map<ServiceQueueKey, List<ServiceInfo>> newMap = getServiceKeyListMap(otherServices);
        currentOtherServices = otherServices;
        currentMap.forEach((key, list) -> {
            if (!list.equals(newMap.get(key))) {
                changes.add(key);
            }
        });
        currentMap.keySet().forEach(newMap::remove);
        changes.addAll(newMap.keySet());
        if (!changes.isEmpty()) {
            applicationEventPublisher.publishEvent(new ClusterTopologyChangeEvent(this, changes));
        }
    }
    applicationEventPublisher.publishEvent(new ServiceListChangedEvent(otherServices, currentService));
}