| /** |
| * 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.ratis.util; |
| |
| import org.apache.log4j.Level; |
| import org.junit.Assert; |
| import org.junit.Test; |
| |
| import java.util.concurrent.TimeUnit; |
| import java.util.concurrent.atomic.AtomicBoolean; |
| import java.util.function.Consumer; |
| |
| public class TestTimeoutScheduler { |
| { |
| LogUtils.setLogLevel(TimeoutScheduler.LOG, Level.ALL); |
| } |
| |
| static class ErrorHandler implements Consumer<RuntimeException> { |
| private final AtomicBoolean hasError = new AtomicBoolean(false); |
| |
| @Override |
| public void accept(RuntimeException e) { |
| hasError.set(true); |
| TimeoutScheduler.LOG.error("Failed", e); |
| } |
| |
| void assertNoError() { |
| Assert.assertFalse(hasError.get()); |
| } |
| } |
| |
| @Test(timeout = 1000) |
| public void testSingleTask() throws Exception { |
| final TimeoutScheduler scheduler = TimeoutScheduler.newInstance(1); |
| final TimeDuration grace = TimeDuration.valueOf(100, TimeUnit.MILLISECONDS); |
| scheduler.setGracePeriod(grace); |
| Assert.assertFalse(scheduler.hasScheduler()); |
| |
| final ErrorHandler errorHandler = new ErrorHandler(); |
| |
| final AtomicBoolean fired = new AtomicBoolean(false); |
| scheduler.onTimeout(TimeDuration.valueOf(250, TimeUnit.MILLISECONDS), () -> { |
| Assert.assertFalse(fired.get()); |
| fired.set(true); |
| }, errorHandler); |
| Assert.assertTrue(scheduler.hasScheduler()); |
| |
| Thread.sleep(100); |
| Assert.assertFalse(fired.get()); |
| Assert.assertTrue(scheduler.hasScheduler()); |
| |
| Thread.sleep(100); |
| Assert.assertFalse(fired.get()); |
| Assert.assertTrue(scheduler.hasScheduler()); |
| |
| Thread.sleep(100); |
| Assert.assertTrue(fired.get()); |
| Assert.assertTrue(scheduler.hasScheduler()); |
| |
| Thread.sleep(100); |
| Assert.assertTrue(fired.get()); |
| Assert.assertFalse(scheduler.hasScheduler()); |
| |
| errorHandler.assertNoError(); |
| } |
| |
| @Test(timeout = 1000) |
| public void testMultipleTasks() throws Exception { |
| final TimeoutScheduler scheduler = TimeoutScheduler.newInstance(1); |
| final TimeDuration grace = TimeDuration.valueOf(100, TimeUnit.MILLISECONDS); |
| scheduler.setGracePeriod(grace); |
| Assert.assertFalse(scheduler.hasScheduler()); |
| |
| final ErrorHandler errorHandler = new ErrorHandler(); |
| |
| final AtomicBoolean[] fired = new AtomicBoolean[3]; |
| for(int i = 0; i < fired.length; i++) { |
| final AtomicBoolean f = fired[i] = new AtomicBoolean(false); |
| scheduler.onTimeout(TimeDuration.valueOf(100*i + 50, TimeUnit.MILLISECONDS), () -> { |
| Assert.assertFalse(f.get()); |
| f.set(true); |
| }, errorHandler); |
| Assert.assertTrue(scheduler.hasScheduler()); |
| } |
| |
| Thread.sleep(100); |
| Assert.assertTrue(fired[0].get()); |
| Assert.assertFalse(fired[1].get()); |
| Assert.assertFalse(fired[2].get()); |
| Assert.assertTrue(scheduler.hasScheduler()); |
| |
| Thread.sleep(100); |
| Assert.assertTrue(fired[0].get()); |
| Assert.assertTrue(fired[1].get()); |
| Assert.assertFalse(fired[2].get()); |
| Assert.assertTrue(scheduler.hasScheduler()); |
| |
| Thread.sleep(100); |
| Assert.assertTrue(fired[0].get()); |
| Assert.assertTrue(fired[1].get()); |
| Assert.assertTrue(fired[2].get()); |
| Assert.assertTrue(scheduler.hasScheduler()); |
| |
| Thread.sleep(100); |
| Assert.assertTrue(fired[0].get()); |
| Assert.assertTrue(fired[1].get()); |
| Assert.assertTrue(fired[2].get()); |
| Assert.assertFalse(scheduler.hasScheduler()); |
| |
| errorHandler.assertNoError(); |
| } |
| |
| @Test(timeout = 1000) |
| public void testExtendingGracePeriod() throws Exception { |
| final TimeoutScheduler scheduler = TimeoutScheduler.newInstance(1); |
| final TimeDuration grace = TimeDuration.valueOf(100, TimeUnit.MILLISECONDS); |
| scheduler.setGracePeriod(grace); |
| Assert.assertFalse(scheduler.hasScheduler()); |
| |
| final ErrorHandler errorHandler = new ErrorHandler(); |
| |
| { |
| final AtomicBoolean fired = new AtomicBoolean(false); |
| scheduler.onTimeout(TimeDuration.valueOf(150, TimeUnit.MILLISECONDS), () -> { |
| Assert.assertFalse(fired.get()); |
| fired.set(true); |
| }, errorHandler); |
| Assert.assertTrue(scheduler.hasScheduler()); |
| |
| Thread.sleep(100); |
| Assert.assertFalse(fired.get()); |
| Assert.assertTrue(scheduler.hasScheduler()); |
| |
| Thread.sleep(100); |
| Assert.assertTrue(fired.get()); |
| Assert.assertTrue(scheduler.hasScheduler()); |
| } |
| |
| { |
| // submit another task during grace period |
| final AtomicBoolean fired2 = new AtomicBoolean(false); |
| scheduler.onTimeout(TimeDuration.valueOf(150, TimeUnit.MILLISECONDS), () -> { |
| Assert.assertFalse(fired2.get()); |
| fired2.set(true); |
| }, errorHandler); |
| |
| Thread.sleep(100); |
| Assert.assertFalse(fired2.get()); |
| Assert.assertTrue(scheduler.hasScheduler()); |
| |
| Thread.sleep(100); |
| Assert.assertTrue(fired2.get()); |
| Assert.assertTrue(scheduler.hasScheduler()); |
| |
| Thread.sleep(100); |
| Assert.assertTrue(fired2.get()); |
| Assert.assertFalse(scheduler.hasScheduler()); |
| } |
| |
| errorHandler.assertNoError(); |
| } |
| |
| @Test(timeout = 1000) |
| public void testRestartingScheduler() throws Exception { |
| final TimeoutScheduler scheduler = TimeoutScheduler.newInstance(1); |
| final TimeDuration grace = TimeDuration.valueOf(100, TimeUnit.MILLISECONDS); |
| scheduler.setGracePeriod(grace); |
| Assert.assertFalse(scheduler.hasScheduler()); |
| |
| final ErrorHandler errorHandler = new ErrorHandler(); |
| |
| for(int i = 0; i < 2; i++) { |
| final AtomicBoolean fired = new AtomicBoolean(false); |
| scheduler.onTimeout(TimeDuration.valueOf(150, TimeUnit.MILLISECONDS), () -> { |
| Assert.assertFalse(fired.get()); |
| fired.set(true); |
| }, errorHandler); |
| Assert.assertTrue(scheduler.hasScheduler()); |
| |
| Thread.sleep(100); |
| Assert.assertFalse(fired.get()); |
| Assert.assertTrue(scheduler.hasScheduler()); |
| |
| Thread.sleep(100); |
| Assert.assertTrue(fired.get()); |
| Assert.assertTrue(scheduler.hasScheduler()); |
| |
| Thread.sleep(100); |
| Assert.assertTrue(fired.get()); |
| Assert.assertFalse(scheduler.hasScheduler()); |
| } |
| |
| errorHandler.assertNoError(); |
| } |
| } |