Java QueueFactory類代碼示例

import com.google.appengine.api.taskqueue.QueueFactory; //導入依賴的package包/類
public static void scheduleNotificationBuild(String objectType, Long id,
		String action) {
	if (objectType == null || objectType.isEmpty()) {
		throw new IllegalArgumentException("No Specified Object Type");
	}

	if (id == null) {
		throw new IllegalArgumentException("No Specified Object Id");
	}

	if (action == null || action.isEmpty()) {
		throw new IllegalArgumentException("No Action Specified");
	}

	// Execute the servlet to pull from the queue
	Queue executionQueue = QueueFactory.getQueue("notification-building");
	executionQueue.add(TaskOptions.Builder
			.withUrl("/notifications/builder/").method(Method.GET)
			.param("objectType", objectType)
			.param("id", String.valueOf(id.longValue()))
			.param("action", action));

}
 

import com.google.appengine.api.taskqueue.QueueFactory; //導入依賴的package包/類
@Override protected void configure() {
  StoreModuleHelper.makeBasicBindingsAndExposures(binder(), ConvStore.class);
  StoreModuleHelper.bindEntityKinds(binder(), ROOT_ENTITY_KIND);

  bind(SlobModel.class).to(WaveObjectStoreModel.class);
  bind(AccessChecker.class).to(ConvAccessChecker.class);
  bind(PermissionSource.class).to(ConvPermissionSource.class);

  Multibinder<PreCommitAction> preCommitActions =
      Multibinder.newSetBinder(binder(), PreCommitAction.class);
  preCommitActions.addBinding().to(IndexTask.ConvPreCommit.class);

  Multibinder<PostCommitAction> postCommitActions =
      Multibinder.newSetBinder(binder(), PostCommitAction.class);
  postCommitActions.addBinding().to(IndexTask.Conv.class);

  bind(Queue.class).annotatedWith(PostCommitActionQueue.class).toInstance(
      QueueFactory.getQueue("post-commit-conv"));
}
 

import com.google.appengine.api.taskqueue.QueueFactory; //導入依賴的package包/類
@Override
public void doGet(HttpServletRequest req, HttpServletResponse resp) {
    Enumeration e = req.getHeaderNames();
    while(e.hasMoreElements()) {
        String param = (String)e.nextElement();
        log.info("header:" + param + req.getHeader(param));
    }

    String cronHeader = req.getHeader("X-Appengine-Cron");
    if(cronHeader == null || !cronHeader.trim().equals("true")) {
        resp.setStatus(403);
        return;
    }

    Queue queue = QueueFactory.getQueue("reaper");
    queue.add(TaskOptions.Builder.withUrl("/reaper"));

}
 

import com.google.appengine.api.taskqueue.QueueFactory; //導入依賴的package包/類
/**
 * Registers an update-replay-profile task.
 * @param sha1 SHA-1 of the file
 * @param incCommentsCount tells if comments count has to be incremented
 * @param incGgsCount      tells if GG count has to be incremented
 * @param incBgsCount      tells if BG count has to be incremented
 */
public static void register_updateRepProfileTask( final String sha1, final boolean incCommentsCount, final boolean incGgsCount, final boolean incBgsCount ) {
	int entitySelector;
	try {
		// SHA-1 algorithm is designed so every bit of SHA-1 depends on the input,
		// so the first byte depends on the input (and changes) just like all of it
		// It's enough to decide/assign the queue based on the first byte
		entitySelector = Integer.parseInt( sha1.substring( 0, 2 ), 16 );
	} catch ( final Exception e ) { // NumberFormatException is not enough, IndexOutOfBoundsException is raised if sha1 is shorter than 2 chars
		// This should never happen, but since sha1 is not checked syntactically,
		// it might happen someone sends an invalid sha1
		entitySelector = sha1.hashCode();
	}
	
	QueueFactory.getQueue( getEntityUpdateQueueName( entitySelector ) ).add(
		buildTask( OPERATION_UPDATE_REP_PROFILE )
			.param( PARAM_SHA1              , sha1 )
			.param( PARAM_INC_COMMENTS_COUNT, Boolean.toString( incCommentsCount ) )
			.param( PARAM_INC_GGS_COUNT     , Boolean.toString( incGgsCount      ) )
			.param( PARAM_INC_BGS_COUNT     , Boolean.toString( incBgsCount      ) )
	);
}
 

import com.google.appengine.api.taskqueue.QueueFactory; //導入依賴的package包/類
@Override
protected void doGet(HttpServletRequest req,
                     HttpServletResponse resp)
    throws IOException {

  // Increment the count for the current namespace asynchronously.
  QueueFactory.getDefaultQueue().add(
      TaskOptions.Builder.withUrl("/_ah/update_count")
          .param("countName", "SomeRequest"));
  // Increment the global count and set the
  // namespace locally.  The namespace is
  // transferred to the invoked request and
  // executed asynchronously.
  String namespace = NamespaceManager.get();
  try {
    NamespaceManager.set("-global-");
    QueueFactory.getDefaultQueue().add(
        TaskOptions.Builder.withUrl("/_ah/update_count")
            .param("countName", "SomeRequest"));
  } finally {
    NamespaceManager.set(namespace);
  }
  resp.setContentType("text/plain");
  resp.getWriter().println("Counts are being updated.");
}
 

import com.google.appengine.api.taskqueue.QueueFactory; //導入依賴的package包/類
@Override
protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws IOException {

  // Increment the count for the current namespace asynchronously.
  QueueFactory.getDefaultQueue()
      .add(TaskOptions.Builder.withUrl("/_ah/update_count").param("countName", "SomeRequest"));
  // Increment the global count and set the
  // namespace locally.  The namespace is
  // transferred to the invoked request and
  // executed asynchronously.
  String namespace = NamespaceManager.get();
  try {
    NamespaceManager.set("-global-");
    QueueFactory.getDefaultQueue()
        .add(TaskOptions.Builder.withUrl("/_ah/update_count").param("countName", "SomeRequest"));
  } finally {
    NamespaceManager.set(namespace);
  }
  resp.setContentType("text/plain");
  resp.getWriter().println("Counts are being updated.");
}
 

import com.google.appengine.api.taskqueue.QueueFactory; //導入依賴的package包/類
/**
 * called when a game finished normally
 * @param p_game
 */
public static void gameFinished(Game p_game)
{
  p_game.setStatus( GameStatus.History );
  GlobalVars.incrementCurrentGameCount( -1 );

  if( p_game.getGameType() == GameType.MultiPlayer )
  {
    // add all stat related to finished game
    GlobalVars.incrementFGameNbConfigGameTime( p_game.getConfigGameTime(), 1 );
    GlobalVars.incrementFGameNbOfHexagon( p_game.getNumberOfHexagon() );
    GlobalVars.incrementFGameNbPlayer( p_game.getSetRegistration().size() );

    QueueFactory.getDefaultQueue().add(
        TaskOptions.Builder.withPayload( new UpdateStat4FinishedGame( p_game.getId(), true ) ) );
    // the following action was causing datastore contention
    // updateStat4FinishedGame( p_game, true );
  }
  else if( p_game.getGameType() == GameType.Initiation )
  {
    GlobalVars.incrementFGameInitiationCount( 1 );
  }
}
 

import com.google.appengine.api.taskqueue.QueueFactory; //導入依賴的package包/類
/**
 * called when a game is aborted
 * @param p_game
 */
public static void gameAbort(Game p_game)
{
  if( p_game.getStatus() == GameStatus.History && p_game.getGameType() == GameType.MultiPlayer )
  {
    // for game that are History, we have to remove stat
    GlobalVars.incrementFGameNbConfigGameTime( p_game.getConfigGameTime(), -1 );
    GlobalVars.incrementFGameNbOfHexagon( -1 * p_game.getNumberOfHexagon() );
    GlobalVars.incrementFGameNbPlayer( -1 * p_game.getSetRegistration().size() );

    // almost the reverse of updateStat4FinishedGame.
    // must be call for game that will be cancelled after finished
    QueueFactory.getQueue( "longDBTask" ).add(
        TaskOptions.Builder.withPayload( new RemovePlayerGameStatistics( p_game.getId(), p_game
            .getEndDate() ) ) );
  }
  else if( p_game.getStatus() == GameStatus.Running )
  {
    GlobalVars.incrementCurrentGameCount( -1 );
  }
  p_game.setStatus( GameStatus.Aborted );
}
 

import com.google.appengine.api.taskqueue.QueueFactory; //導入依賴的package包/類
/**
 * @param name
 * @param id
 */
public static void queueToIndex (String name, Long id) {
	Queue queue = QueueFactory.getDefaultQueue();

	TaskOptions options = TaskOptions.Builder.withMethod(Method.POST)
			.url(INDEX_SEARCH_URL).param(ENTITY_NAME_KEY, name)
			.param(ENTITY_ID_KEY, id.toString());

	int retry = RETRY_COUNT;
	do {
		try {
			queue.add(options);

			// success no need to retry
			retry = 0;
		} catch (TransientFailureException ex) {
			retry--;
		}
	} while (retry > 0);
}
 

import com.google.appengine.api.taskqueue.QueueFactory; //導入依賴的package包/類
/**
 * Reset reservations in datastore to match those in RTDB. Reservations in RTDB are used
 * as the source of truth, corresponding reservations in datastore are updated to match
 * those in RTDB. Reservations in RTDB that do not exist in datastore are added to datastore.
 * Reservations that exist in datastore and do not exist in RTDB are updated in datastore
 * with status DELETED.
 *
 * Use of this endpoint should be followed by a user data sync.
 *
 * @param user User making request (injected by Endpoints)
 */
@ApiMethod(name = "reset", path = "reset")
public void reset(User user)
    throws UnauthorizedException {
  if (user == null) {
    throw new UnauthorizedException("Invalid credentials");
  }

  // Add Sync Reservations worker to queue.
  Queue queue = QueueFactory.getQueue("SyncReservationsQueue");

  TaskOptions taskOptions = TaskOptions.Builder
      .withUrl("/queue/syncres")
      .method(Method.GET);
  queue.add(taskOptions);
}
 

import com.google.appengine.api.taskqueue.QueueFactory; //導入依賴的package包/類
@Override
public void enqueueTask(String taskName, Map<String, String[]> paramMap) {

  checkNotNull(taskName);

  final Queue queue = QueueFactory.getDefaultQueue();
  final TaskOptions options = TaskOptions.Builder.withUrl(String.format(PATH_ADMIN_TASK, taskName));

  for (Map.Entry<String, String[]> param : paramMap.entrySet()) {
    for (String value : param.getValue()) {
      options.param(param.getKey(), value);
    }
  }

  try {
    queue.add(options);
    LOGGER.info("Added admin task to queue {}", taskName);
  } catch (TransientFailureException tfe) {
    LOGGER.error("Run admin task fail {} ", tfe.getMessage());
  }

}
 

import com.google.appengine.api.taskqueue.QueueFactory; //導入依賴的package包/類
@Override
public void doGet(HttpServletRequest req, HttpServletResponse resp) throws IOException {
  String channelKey = getChannelKey();
  String filterText = req.getParameter("filterText");
  filterText = (filterText == null) ? "" : filterText;
  String tag = req.getParameter("tag");
  String requestId = req.getParameter("reqId");
  String userId = userService.getCurrentUser().getUserId();

  Queue queue = QueueFactory.getDefaultQueue();
  TaskOptions taskOptions = withUrl("/fetch")
      .param("displayStyle", req.getParameter("displayStyle"))
      .param("filterText", filterText)
      .param("key", channelKey)
      .param("networkCode", req.getParameter("networkCode"))
      .param("userId", userId)
      .param("tag", tag)
      .param("reqId", requestId)
      .param("typeOverride", req.getParameter("typeOverride"));

  queue.add(taskOptions.method(Method.GET));
  resp.getWriter().print(channelKey);
}
 

import com.google.appengine.api.taskqueue.QueueFactory; //導入依賴的package包/類
/**
 * Adds the given task, to be run after the specified time, to the specified queue.
 *
 * @param task the task object containing the details of task to be added
 * @param countdownTime the time delay for the task to be executed
 */
public void addDeferredTask(TaskWrapper task, long countdownTime) {
    Queue requiredQueue = QueueFactory.getQueue(task.getQueueName());
    TaskOptions taskToBeAdded = TaskOptions.Builder.withUrl(task.getWorkerUrl());
    if (countdownTime > 0) {
        taskToBeAdded.countdownMillis(countdownTime);
    }

    for (Map.Entry<String, String[]> entry : task.getParamMap().entrySet()) {
        String name = entry.getKey();
        String[] values = entry.getValue();

        for (String value : values) {
            taskToBeAdded = taskToBeAdded.param(name, value);
        }
    }

    requiredQueue.add(taskToBeAdded);
}
 

import com.google.appengine.api.taskqueue.QueueFactory; //導入依賴的package包/類
private static void deferredTask(HttpServletRequest req, HttpServletResponse resp)
    throws IOException {
  String queue = req.getParameter("queue");
  Queue q;
  if (queue == null) {
    q = QueueFactory.getDefaultQueue();
  } else {
    q = QueueFactory.getQueue(queue);
  }
  final String data = req.getParameter("deferredData");

  TaskOptions opts =
      TaskOptions.Builder.withPayload(
          new DeferredTask() {
            @Override
            public void run() {
              gotCalledBack(data);
            }
          });

  latch = new CountDownLatch(1);
  TaskHandle handle = q.add(opts);
  resp.getWriter().print(handle.getQueueName());
}
 

import com.google.appengine.api.taskqueue.QueueFactory; //導入依賴的package包/類
private void leaseAndDeleteTasks(HttpServletRequest req, HttpServletResponse resp)
    throws ServletException, IOException {
  int numTasks = Integer.parseInt(req.getParameter("numTasks"));
  Double lease = Double.parseDouble(req.getParameter("lease"));
  String queue = req.getParameter("queue");
  Queue q = QueueFactory.getQueue(queue);
  Boolean doDelete = Boolean.parseBoolean(req.getParameter("doDelete"));

  List<TaskHandle> tasks = q.leaseTasks(lease.intValue() * 1000, TimeUnit.MILLISECONDS, numTasks);

  for (TaskHandle task : tasks) {
    if (doDelete) {
      q.deleteTask(task.getName());
    }
  }
  resp.getWriter().print(queue + "," + tasks.size());
}