| /* |
| * 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.jackrabbit.oak.plugins.document.persistentCache; |
| |
| import com.google.common.cache.RemovalCause; |
| import org.apache.commons.io.FileUtils; |
| import org.apache.jackrabbit.oak.cache.CacheLIRS; |
| import org.apache.jackrabbit.oak.plugins.document.DocumentMKBuilderProvider; |
| import org.apache.jackrabbit.oak.plugins.document.PathRev; |
| import org.apache.jackrabbit.oak.plugins.document.Revision; |
| import org.apache.jackrabbit.oak.plugins.document.RevisionVector; |
| import org.apache.jackrabbit.oak.plugins.document.persistentCache.async.CacheWriteQueue; |
| import org.apache.jackrabbit.oak.plugins.document.util.StringValue; |
| import org.jetbrains.annotations.NotNull; |
| import org.jetbrains.annotations.Nullable; |
| import org.junit.After; |
| import org.junit.Before; |
| import org.junit.Rule; |
| import org.junit.Test; |
| |
| import java.io.File; |
| import java.io.IOException; |
| import java.util.List; |
| import java.util.concurrent.atomic.AtomicReference; |
| import static com.google.common.collect.Lists.newArrayList; |
| import static java.util.Arrays.asList; |
| import static java.util.Collections.emptyList; |
| import static org.junit.Assert.assertEquals; |
| |
| public class AsyncQueueTest { |
| |
| @Rule |
| public DocumentMKBuilderProvider builderProvider = new DocumentMKBuilderProvider(); |
| |
| private static final StringValue VAL = new StringValue("xyz"); |
| |
| private PersistentCache pCache; |
| |
| private List<PathRev> putActions; |
| |
| private List<PathRev> invalidateActions; |
| |
| private NodeCache<PathRev, StringValue> nodeCache; |
| |
| private int id; |
| |
| @Before |
| public void setup() throws IOException { |
| FileUtils.deleteDirectory(new File("target/cacheTest")); |
| pCache = new PersistentCache("target/cacheTest"); |
| final AtomicReference<NodeCache<PathRev, StringValue>> nodeCacheRef = new AtomicReference<NodeCache<PathRev, StringValue>>(); |
| CacheLIRS<PathRev, StringValue> cache = new CacheLIRS.Builder<PathRev, StringValue>().maximumSize(1).evictionCallback(new CacheLIRS.EvictionCallback<PathRev, StringValue>() { |
| @Override |
| public void evicted(@NotNull PathRev key, @Nullable StringValue value, @NotNull RemovalCause cause) { |
| if (nodeCacheRef.get() != null) { |
| nodeCacheRef.get().evicted(key, value, cause); |
| } |
| } |
| }).build(); |
| nodeCache = (NodeCache<PathRev, StringValue>) pCache.wrap(builderProvider.newBuilder().getNodeStore(), |
| null, cache, CacheType.NODE); |
| nodeCacheRef.set(nodeCache); |
| |
| CacheWriteQueueWrapper writeQueue = new CacheWriteQueueWrapper(nodeCache.writeQueue); |
| nodeCache.writeQueue = writeQueue; |
| |
| this.putActions = writeQueue.putActions; |
| this.invalidateActions = writeQueue.invalidateActions; |
| this.id = 0; |
| } |
| |
| @After |
| public void teardown() { |
| if (pCache != null) { |
| pCache.close(); |
| } |
| } |
| |
| @Test |
| public void unusedItemsShouldntBePersisted() { |
| PathRev k = generatePathRev(); |
| nodeCache.put(k, VAL); |
| flush(); |
| assertEquals(emptyList(), putActions); |
| } |
| |
| @Test |
| public void readItemsShouldntBePersistedAgain() { |
| PathRev k = generatePathRev(); |
| nodeCache.put(k, VAL); |
| nodeCache.getIfPresent(k); |
| flush(); |
| assertEquals(asList(k), putActions); |
| |
| putActions.clear(); |
| nodeCache.getIfPresent(k); // k should be loaded from persisted cache |
| flush(); |
| assertEquals(emptyList(), putActions); // k is not persisted again |
| } |
| |
| @Test |
| public void usedItemsShouldBePersisted() { |
| PathRev k = generatePathRev(); |
| nodeCache.put(k, VAL); |
| nodeCache.getIfPresent(k); |
| flush(); |
| assertEquals(asList(k), putActions); |
| } |
| |
| private PathRev generatePathRev() { |
| return new PathRev("/" + id++, new RevisionVector(new Revision(0, 0, 0))); |
| } |
| |
| private void flush() { |
| for (int i = 0; i < 1024; i++) { |
| nodeCache.put(generatePathRev(), VAL); // cause eviction of k |
| } |
| } |
| |
| private static class CacheWriteQueueWrapper extends CacheWriteQueue<PathRev, StringValue> { |
| |
| private final CacheWriteQueue<PathRev, StringValue> wrapped; |
| |
| private final List<PathRev> putActions = newArrayList(); |
| |
| private final List<PathRev> invalidateActions = newArrayList(); |
| |
| public CacheWriteQueueWrapper(CacheWriteQueue<PathRev, StringValue> wrapped) { |
| super(null, null, null); |
| this.wrapped = wrapped; |
| } |
| |
| @Override |
| public boolean addPut(PathRev key, StringValue value) { |
| putActions.add(key); |
| return wrapped.addPut(key, value); |
| } |
| |
| public boolean addInvalidate(Iterable<PathRev> keys) { |
| invalidateActions.addAll(newArrayList(keys)); |
| return wrapped.addInvalidate(keys); |
| } |
| } |
| |
| } |