| /** |
| * 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 |
| * |
| * 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 org.apache.pulsar.client.impl; |
| |
| import org.apache.pulsar.client.util.RetryUtil; |
| import org.testng.annotations.Test; |
| |
| import java.util.concurrent.CompletableFuture; |
| import java.util.concurrent.Executors; |
| import java.util.concurrent.ScheduledExecutorService; |
| import java.util.concurrent.TimeUnit; |
| import java.util.concurrent.atomic.AtomicInteger; |
| |
| import static org.testng.Assert.assertEquals; |
| import static org.testng.Assert.assertTrue; |
| |
| @Test(groups = "utils") |
| public class RetryUtilTest { |
| |
| |
| @Test |
| public void testFailAndRetry() throws Exception { |
| ScheduledExecutorService executor = Executors.newSingleThreadScheduledExecutor(); |
| CompletableFuture<Boolean> callback = new CompletableFuture<>(); |
| AtomicInteger atomicInteger = new AtomicInteger(0); |
| Backoff backoff = new BackoffBuilder() |
| .setInitialTime(100, TimeUnit.MILLISECONDS) |
| .setMax(2000, TimeUnit.MILLISECONDS) |
| .setMandatoryStop(5000, TimeUnit.MILLISECONDS) |
| .create(); |
| RetryUtil.retryAsynchronously(() -> { |
| atomicInteger.incrementAndGet(); |
| if (atomicInteger.get() < 5) { |
| throw new RuntimeException("fail"); |
| } |
| return true; |
| }, backoff, executor, callback); |
| assertTrue(callback.get()); |
| assertEquals(atomicInteger.get(), 5); |
| executor.shutdownNow(); |
| } |
| |
| @Test |
| public void testFail() throws Exception { |
| ScheduledExecutorService executor = Executors.newSingleThreadScheduledExecutor(); |
| CompletableFuture<Boolean> callback = new CompletableFuture<>(); |
| Backoff backoff = new BackoffBuilder() |
| .setInitialTime(500, TimeUnit.MILLISECONDS) |
| .setMax(2000, TimeUnit.MILLISECONDS) |
| .setMandatoryStop(5000, TimeUnit.MILLISECONDS) |
| .create(); |
| long start = System.currentTimeMillis(); |
| RetryUtil.retryAsynchronously(() -> { |
| throw new RuntimeException("fail"); |
| }, backoff, executor, callback); |
| try { |
| callback.get(); |
| } catch (Exception e) { |
| assertTrue(e.getMessage().contains("fail")); |
| } |
| long time = System.currentTimeMillis() - start; |
| assertTrue(time >= 5000 - 2000, "Duration:" + time); |
| executor.shutdownNow(); |
| } |
| } |