Examples with ReferencePackage org.apache.sling.distribution.packaging.impl.ReferencePackage used on opensource projects

Example 1 with ReferencePackage

use of org.apache.sling.distribution.packaging.impl.ReferencePackage in project sling by apache.

the class AsyncDeliveryDispatchingStrategy method add.

@Override
public Iterable<DistributionQueueItemStatus> add(@Nonnull DistributionPackage distributionPackage, @Nonnull DistributionQueueProvider queueProvider) throws DistributionException {
    if (!(distributionPackage instanceof SharedDistributionPackage) && deliveryMappings.size() > 1) {
        throw new DistributionException("distribution package must be a shared package to be added in multiple queues");
    }
    String distributionPackageId = distributionPackage.getId();
    List<DistributionQueueItemStatus> result = new LinkedList<DistributionQueueItemStatus>();
    for (String referenceQueueName : deliveryMappings.keySet()) {
        DistributionQueue queue = queueProvider.getQueue(referenceQueueName);
        int MAX_QUEUE_ITEMS_THRESHOLD = 100;
        if (queue.getStatus().getItemsCount() > MAX_QUEUE_ITEMS_THRESHOLD) {
            // too many items in the queue, let's send actual packages and references separately
            distributionPackage.getInfo().put("reference-required", true);
            DistributionQueueItem item = getItem(distributionPackage);
            // create and acquire reference package
            ReferencePackage referencePackage = new ReferencePackage(distributionPackage);
            DistributionPackageUtils.acquire(referencePackage, referenceQueueName);
            // acquire actual package
            String deliveryQueueName = deliveryMappings.get(referenceQueueName);
            DistributionPackageUtils.acquire(distributionPackage, deliveryQueueName);
            // add the actual package to the delivery queue
            DistributionQueue deliveryQueue = queueProvider.getQueue(deliveryQueueName);
            DistributionQueueEntry deliveryQueueEntry = deliveryQueue.add(item);
            if (deliveryQueueEntry != null) {
                DistributionQueueItemStatus status = deliveryQueueEntry.getStatus();
                log.debug("item {} added to delivery queue: {}", item, status);
                result.add(status);
            } else {
                DistributionPackageUtils.release(distributionPackage, deliveryQueueName);
                log.error("cannot add package {} to delivery queue {}", distributionPackageId, deliveryQueueName);
                result.add(new DistributionQueueItemStatus(DistributionQueueItemState.ERROR, deliveryQueue.getName()));
            }
            // add the reference package to the reference queue
            DistributionQueue referenceQueue = queueProvider.getQueue(referenceQueueName);
            DistributionQueueItem referenceQueueItem = getItem(referencePackage);
            DistributionQueueEntry referenceQueueEntry = referenceQueue.add(referenceQueueItem);
            if (referenceQueueEntry != null) {
                DistributionQueueItemStatus status = referenceQueueEntry.getStatus();
                log.debug("item {} added to reference queue: {}", referenceQueueItem, status);
            } else {
                DistributionPackageUtils.release(referencePackage, referenceQueueName);
                log.error("cannot add package {} to reference queue {}", distributionPackageId, referenceQueueName);
                result.add(new DistributionQueueItemStatus(DistributionQueueItemState.ERROR, referenceQueue.getName()));
            }
        } else {
            // normal queueing
            DistributionQueueItem item = getItem(distributionPackage);
            DistributionQueueItemStatus status = new DistributionQueueItemStatus(DistributionQueueItemState.ERROR, queue.getName());
            DistributionPackageUtils.acquire(distributionPackage, referenceQueueName);
            DistributionQueueEntry queueEntry = queue.add(item);
            if (queueEntry != null) {
                status = queueEntry.getStatus();
                log.debug("item {} added to queue: {}", item, status);
            } else {
                DistributionPackageUtils.release(distributionPackage, referenceQueueName);
                log.error("cannot add package {} to queue {}", distributionPackageId, referenceQueueName);
            }
            result.add(status);
        }
    }
    return result;
}