| /** |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with this |
| * work for additional information regarding copyright ownership. The ASF |
| * licenses this file to you 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 |
| * <p> |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * <p> |
| * 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 org.apache.hadoop.ozone.container.testutils; |
| |
| import java.util.concurrent.CountDownLatch; |
| import java.util.concurrent.Future; |
| import java.util.concurrent.TimeUnit; |
| import java.util.concurrent.atomic.AtomicInteger; |
| |
| import org.apache.hadoop.hdds.conf.ConfigurationSource; |
| import org.apache.hadoop.ozone.container.keyvalue.statemachine.background.BlockDeletingService; |
| import org.apache.hadoop.ozone.container.ozoneimpl.OzoneContainer; |
| |
| import com.google.common.annotations.VisibleForTesting; |
| import com.google.common.util.concurrent.ThreadFactoryBuilder; |
| |
| /** |
| * A test class implementation for {@link BlockDeletingService}. |
| */ |
| public class BlockDeletingServiceTestImpl |
| extends BlockDeletingService { |
| |
| // the service timeout |
| private static final int SERVICE_TIMEOUT_IN_MILLISECONDS = 0; |
| |
| // tests only |
| private CountDownLatch latch; |
| private Thread testingThread; |
| private AtomicInteger numOfProcessed = new AtomicInteger(0); |
| |
| public BlockDeletingServiceTestImpl(OzoneContainer container, |
| int serviceInterval, ConfigurationSource conf) { |
| super(container, serviceInterval, SERVICE_TIMEOUT_IN_MILLISECONDS, |
| TimeUnit.MILLISECONDS, conf); |
| } |
| |
| @VisibleForTesting |
| public void runDeletingTasks() { |
| if (latch.getCount() > 0) { |
| this.latch.countDown(); |
| } else { |
| throw new IllegalStateException("Count already reaches zero"); |
| } |
| } |
| |
| @VisibleForTesting |
| public boolean isStarted() { |
| return latch != null && testingThread.isAlive(); |
| } |
| |
| public int getTimesOfProcessed() { |
| return numOfProcessed.get(); |
| } |
| |
| // Override the implementation to start a single on-call control thread. |
| @Override |
| public void start() { |
| PeriodicalTask svc = new PeriodicalTask(); |
| // In test mode, relies on a latch countdown to runDeletingTasks tasks. |
| Runnable r = () -> { |
| while (true) { |
| latch = new CountDownLatch(1); |
| try { |
| latch.await(); |
| } catch (InterruptedException e) { |
| break; |
| } |
| Future<?> future = this.getExecutorService().submit(svc); |
| try { |
| // for tests, we only wait for 3s for completion |
| future.get(3, TimeUnit.SECONDS); |
| numOfProcessed.incrementAndGet(); |
| } catch (Exception e) { |
| return; |
| } |
| } |
| }; |
| |
| testingThread = new ThreadFactoryBuilder() |
| .setDaemon(true) |
| .build() |
| .newThread(r); |
| testingThread.start(); |
| } |
| |
| @Override |
| public void shutdown() { |
| testingThread.interrupt(); |
| super.shutdown(); |
| } |
| } |