Examples with Queue com.google.appengine.api.taskqueue.Queue used on opensource projects

Example 1 with Queue

use of com.google.appengine.api.taskqueue.Queue in project iosched by google.

the class MessageSender method multicastSend.

public void multicastSend(List<Device> devices, String action, String extraData) {
    Queue queue = QueueFactory.getQueue("MulticastMessagesQueue");
    // Split messages into batches for multicast
    // GCM limits maximum devices per multicast request. AppEngine also limits the size of
    // lists stored in the datastore.
    int total = devices.size();
    List<String> partialDevices = new ArrayList<String>(total);
    int counter = 0;
    for (Device device : devices) {
        counter++;
        partialDevices.add(device.getGcmId());
        int partialSize = partialDevices.size();
        if (partialSize == MAX_DEVICES || counter == total) {
            // Send multicast message
            Long multicastKey = MessageStore.createMulticast(partialDevices, action, extraData);
            mLogger.fine("Queuing " + partialSize + " devices on multicast " + multicastKey);
            TaskOptions taskOptions = TaskOptions.Builder.withUrl("/queue/send").param("multicastKey", Long.toString(multicastKey)).method(TaskOptions.Method.POST);
            queue.add(taskOptions);
            partialDevices.clear();
        }
    }
    mLogger.fine("Queued message to " + total + " devices");
}

Example 2 with Queue

use of com.google.appengine.api.taskqueue.Queue in project google-app-engine-jappstart by taylorleese.

the class UserDetailsServiceImpl method addUser.

/**
     * Adds a user.
     *
     * @param user the user
     * @param locale the locale
     */
@Override
@Transactional
public final void addUser(final UserAccount user, final Locale locale) {
    final UserAccount cachedUser = (UserAccount) memcacheService.get(user.getUsername());
    if (cachedUser != null) {
        throw new DuplicateUserException();
    }
    final Query query = entityManager.createQuery("SELECT u FROM UserAccount u WHERE username = :username");
    query.setParameter(USERNAME, user.getUsername());
    @SuppressWarnings("unchecked") final List results = query.getResultList();
    if (results != null && !results.isEmpty()) {
        throw new DuplicateUserException();
    }
    entityManager.persist(user);
    memcacheService.put(user.getUsername(), user, Expiration.byDeltaSeconds(DEFAULT_EXPIRATION));
    final TaskOptions taskOptions = TaskOptions.Builder.withUrl(mailTaskUrl).param("username", user.getUsername()).param("locale", locale.toString());
    final Queue queue = QueueFactory.getQueue(mailTaskName);
    queue.add(datastoreService.getCurrentTransaction(), taskOptions);
}