| /** |
| * Copyright 2017 Google Inc. All Rights Reserved. |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file |
| * except in compliance with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software distributed under the |
| * License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either |
| * express or implied. See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| package com.android.vts.util; |
| |
| import com.google.appengine.api.taskqueue.Queue; |
| import com.google.appengine.api.taskqueue.TaskOptions; |
| import java.util.ArrayList; |
| import java.util.List; |
| import java.util.logging.Level; |
| import java.util.logging.Logger; |
| |
| /** TaskQueueHelper, a helper class for interacting with App Engine Task Queue API. */ |
| public class TaskQueueHelper { |
| protected static final Logger logger = Logger.getLogger(TaskQueueHelper.class.getName()); |
| public static final int MAX_BATCH_ADD_SIZE = 100; |
| |
| /** |
| * Add the list of tasks to the provided queue. |
| * |
| * @param queue The task queue in which to insert the tasks. |
| * @param tasks The list of tasks to add. |
| */ |
| public static void addToQueue(Queue queue, List<TaskOptions> tasks) { |
| List<TaskOptions> puts = new ArrayList<>(); |
| for (TaskOptions task : tasks) { |
| puts.add(task); |
| if (puts.size() == MAX_BATCH_ADD_SIZE) { |
| queue.addAsync(puts); |
| puts = new ArrayList<>(); |
| } else if (puts.size() > MAX_BATCH_ADD_SIZE) { |
| logger.log(Level.SEVERE, "Too many tasks batched in the task queue API."); |
| return; |
| } |
| } |
| if (puts.size() > 0) { |
| queue.addAsync(puts); |
| } |
| } |
| } |