| /* |
| * 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.solr.cloud; |
| |
| import java.util.Arrays; |
| import java.util.List; |
| import java.util.concurrent.TimeUnit; |
| |
| import org.apache.solr.SolrTestCaseJ4; |
| import org.apache.solr.common.util.TimeSource; |
| import org.junit.Test; |
| |
| public class ActionThrottleTest extends SolrTestCaseJ4 { |
| |
| static class TestNanoTimeSource extends TimeSource { |
| |
| private List<Long> returnValues; |
| private int index = 0; |
| |
| public TestNanoTimeSource(List<Long> returnValues) { |
| this.returnValues = returnValues; |
| } |
| |
| @Override |
| public long getTimeNs() { |
| return returnValues.get(index++); |
| } |
| |
| @Override |
| public long getEpochTimeNs() { |
| return getTimeNs(); |
| } |
| |
| @Override |
| public long[] getTimeAndEpochNs() { |
| long time = getTimeNs(); |
| return new long[]{time, time}; |
| } |
| |
| @Override |
| public void sleep(long ms) throws InterruptedException { |
| TimeSource.NANO_TIME.sleep(ms); |
| } |
| |
| @Override |
| public long convertDelay(TimeUnit fromUnit, long value, TimeUnit toUnit) { |
| throw new UnsupportedOperationException(); |
| } |
| |
| } |
| |
| // use the same time source as ActionThrottle |
| private static final TimeSource timeSource = TimeSource.NANO_TIME; |
| |
| @Test |
| public void testBasics() throws Exception { |
| |
| ActionThrottle at = new ActionThrottle("test", 1000); |
| long start = timeSource.getTimeNs(); |
| |
| at.minimumWaitBetweenActions(); |
| |
| // should be no wait |
| assertTrue(TimeUnit.MILLISECONDS.convert(timeSource.getTimeNs() - start, TimeUnit.NANOSECONDS) < 1000); |
| at.markAttemptingAction(); |
| |
| if (random().nextBoolean()) Thread.sleep(100); |
| |
| at.minimumWaitBetweenActions(); |
| |
| long elaspsedTime = TimeUnit.MILLISECONDS.convert(timeSource.getTimeNs() - start, TimeUnit.NANOSECONDS); |
| |
| assertTrue(elaspsedTime + "ms", elaspsedTime >= 995); |
| |
| start = timeSource.getTimeNs(); |
| |
| at.markAttemptingAction(); |
| at.minimumWaitBetweenActions(); |
| |
| Thread.sleep(random().nextInt(1000)); |
| |
| elaspsedTime = TimeUnit.MILLISECONDS.convert(timeSource.getTimeNs() - start, TimeUnit.NANOSECONDS); |
| |
| assertTrue(elaspsedTime + "ms", elaspsedTime >= 995); |
| } |
| |
| @Test |
| public void testAZeroNanoTimeReturnInWait() throws Exception { |
| |
| ActionThrottle at = new ActionThrottle("test", 1000, new TestNanoTimeSource(Arrays.asList(new Long[]{0L, 10L}))); |
| long start = timeSource.getTimeNs(); |
| |
| at.markAttemptingAction(); |
| |
| at.minimumWaitBetweenActions(); |
| |
| long elaspsedTime = TimeUnit.MILLISECONDS.convert(timeSource.getTimeNs() - start, TimeUnit.NANOSECONDS); |
| |
| assertTrue(elaspsedTime + "ms", elaspsedTime >= 995); |
| |
| } |
| |
| public void testCreateNewThrottleWithLastValue() throws Exception { |
| ActionThrottle throttle = new ActionThrottle("xyz", 1000, new TestNanoTimeSource(Arrays.asList(new Long[]{10L, 20L}))); |
| throttle.markAttemptingAction(); |
| assertEquals((Long)10L, throttle.getLastActionStartedAt()); |
| throttle = new ActionThrottle("new_xyz", 1000, throttle.getLastActionStartedAt()); |
| assertEquals((Long)10L, throttle.getLastActionStartedAt()); |
| } |
| } |