| /* |
| * 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.geode.internal.cache; |
| |
| import static org.apache.geode.cache.RegionShortcut.PARTITION; |
| import static org.apache.geode.cache.RegionShortcut.REPLICATE; |
| import static org.apache.geode.cache.RegionShortcut.REPLICATE_PROXY; |
| import static org.apache.geode.test.dunit.VM.getVM; |
| import static org.assertj.core.api.Assertions.assertThat; |
| |
| import java.io.Serializable; |
| import java.time.Duration; |
| import java.util.concurrent.Callable; |
| import java.util.concurrent.Future; |
| import java.util.concurrent.TimeUnit; |
| |
| import org.junit.Rule; |
| import org.junit.Test; |
| |
| import org.apache.geode.cache.CacheFactory; |
| import org.apache.geode.cache.CacheLoader; |
| import org.apache.geode.cache.DataPolicy; |
| import org.apache.geode.cache.LoaderHelper; |
| import org.apache.geode.cache.Region; |
| import org.apache.geode.cache.Scope; |
| import org.apache.geode.pdx.PdxReader; |
| import org.apache.geode.pdx.PdxSerializable; |
| import org.apache.geode.pdx.PdxWriter; |
| import org.apache.geode.test.dunit.VM; |
| import org.apache.geode.test.dunit.rules.CacheRule; |
| import org.apache.geode.test.dunit.rules.DistributedBlackboard; |
| import org.apache.geode.test.dunit.rules.DistributedRule; |
| import org.apache.geode.test.junit.rules.ExecutorServiceRule; |
| |
| public class RegionConcurrentOperationDUnitTest implements Serializable { |
| |
| Object key = "KEY"; |
| String value = "VALUE"; |
| |
| private DistributedBlackboard getBlackboard() { |
| return blackboard; |
| } |
| |
| @Rule |
| public DistributedRule distributedRule = new DistributedRule(); |
| |
| @Rule |
| public CacheRule cacheRule = new CacheRule(); |
| |
| @Rule |
| public ExecutorServiceRule executorServiceRule = new ExecutorServiceRule(); |
| |
| @Rule |
| public DistributedBlackboard blackboard = new DistributedBlackboard(); |
| |
| @Test |
| public void getOnProxyRegionFromMultipleThreadsReturnsDifferentObjects() throws Exception { |
| VM member1 = getVM(0); |
| String regionName = getClass().getSimpleName(); |
| |
| cacheRule.createCache(); |
| cacheRule.getCache().createRegionFactory(REPLICATE_PROXY).create(regionName); |
| |
| member1.invoke(() -> { |
| cacheRule.createCache(); |
| cacheRule.getCache().createRegionFactory(REPLICATE) |
| .setCacheLoader(new TestCacheLoader()).create(regionName); |
| }); |
| |
| Future<Object> get1 = executorServiceRule.submit(() -> { |
| Region<Object, Object> region = cacheRule.getCache().getRegion(regionName); |
| return region.get(key); |
| }); |
| |
| Future<Object> get2 = executorServiceRule.submit(() -> { |
| Region<Object, Object> region = cacheRule.getCache().getRegion(regionName); |
| getBlackboard().waitForGate("Loader", 60, TimeUnit.SECONDS); |
| return region.get(key); |
| }); |
| |
| Object get1value = get1.get(); |
| Object get2value = get2.get(); |
| |
| assertThat(get1value).isNotSameAs(get2value); |
| } |
| |
| @Test |
| public void getOnPreLoadedRegionFromMultipleThreadsReturnSameObject() throws Exception { |
| VM member1 = getVM(0); |
| String regionName = getClass().getSimpleName(); |
| |
| cacheRule.createCache(); |
| cacheRule.getCache().createRegionFactory().setDataPolicy(DataPolicy.PRELOADED) |
| .setScope(Scope.DISTRIBUTED_ACK).create(regionName); |
| |
| member1.invoke(() -> { |
| cacheRule.createCache(); |
| cacheRule.getCache().createRegionFactory(REPLICATE) |
| .setCacheLoader(new TestCacheLoader()).create(regionName); |
| }); |
| assertThat(cacheRule.getCache().getRegion(regionName).size()).isEqualTo(0); |
| |
| Future<Object> get1 = executorServiceRule.submit(() -> { |
| Region<Object, Object> region = cacheRule.getCache().getRegion(regionName); |
| return region.get(key); |
| }); |
| |
| Future<Object> get2 = executorServiceRule.submit(() -> { |
| Region<Object, Object> region = cacheRule.getCache().getRegion(regionName); |
| getBlackboard().waitForGate("Loader", 60, TimeUnit.SECONDS); |
| return region.get(key); |
| }); |
| |
| Object get1value = get1.get(); |
| Object get2value = get2.get(); |
| |
| assertThat(get1value).isSameAs(get2value); |
| assertThat(cacheRule.getCache().getRegion(regionName).size()).isEqualTo(1); |
| } |
| |
| @Test |
| public void getOnPartitionedRegionFromMultipleThreadsReturnsDifferentPdxInstances() |
| throws Exception { |
| String regionName = getClass().getSimpleName(); |
| CacheFactory cacheFactory = new CacheFactory(); |
| cacheFactory.setPdxReadSerialized(true); |
| cacheRule.createCache(cacheFactory); |
| InternalCache cache = cacheRule.getCache(); |
| cache.setCopyOnRead(true); |
| Region<Object, Object> region = cache.createRegionFactory(PARTITION) |
| .create(regionName); |
| |
| // Keep doing this concurrency test for 30 seconds. |
| long endTime = Duration.ofSeconds(30).toMillis() + System.currentTimeMillis(); |
| |
| while (System.currentTimeMillis() < endTime) { |
| Callable<Object> getValue = () -> { |
| while (true) { |
| Object value = region.get(key); |
| if (value != null) { |
| return value; |
| } |
| } |
| }; |
| |
| // In this test, two threads are doing gets. One thread puts the value |
| // We expect that the threads will *always* get different PdxInstance values |
| Future<Object> get1 = executorServiceRule.submit(getValue); |
| Future<Object> get2 = executorServiceRule.submit(getValue); |
| Future<Object> put = executorServiceRule.submit(() -> region.put(key, new TestValue())); |
| |
| Object get1value = get1.get(); |
| Object get2value = get2.get(); |
| put.get(); |
| |
| // Assert the values returned are different objects. |
| // PdxInstances are not threadsafe and should not be shared between threads. |
| assertThat(get1value).isNotSameAs(get2value); |
| region.destroy(key); |
| |
| } |
| } |
| |
| private class TestCacheLoader implements CacheLoader<Object, Object>, Serializable { |
| |
| @Override |
| public synchronized Object load(LoaderHelper helper) { |
| getBlackboard().signalGate("Loader"); |
| return value; |
| } |
| |
| @Override |
| public void close() {} |
| } |
| |
| private static class TestValue implements PdxSerializable { |
| int field1 = 5; |
| String field2 = "field"; |
| |
| @Override |
| public void toData(PdxWriter writer) { |
| writer.writeInt("field1", field1); |
| writer.writeString("field2", field2); |
| |
| } |
| |
| @Override |
| public void fromData(PdxReader reader) { |
| reader.readInt("field1"); |
| reader.readString("field2"); |
| } |
| } |
| } |