| /* |
| * 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.index.lucene.property; |
| |
| import java.util.ArrayList; |
| import java.util.Collection; |
| import java.util.List; |
| import java.util.Random; |
| import java.util.concurrent.atomic.AtomicInteger; |
| |
| import com.google.common.collect.Iterables; |
| import com.google.common.collect.TreeTraverser; |
| import org.apache.jackrabbit.oak.api.CommitFailedException; |
| import org.apache.jackrabbit.oak.commons.FixturesHelper; |
| import org.apache.jackrabbit.oak.fixture.DocumentMemoryFixture; |
| import org.apache.jackrabbit.oak.fixture.MemoryFixture; |
| import org.apache.jackrabbit.oak.fixture.NodeStoreFixture; |
| import org.apache.jackrabbit.oak.plugins.index.lucene.TestUtil; |
| import org.apache.jackrabbit.oak.spi.commit.CommitInfo; |
| import org.apache.jackrabbit.oak.spi.commit.EmptyHook; |
| import org.apache.jackrabbit.oak.spi.state.ChildNodeEntry; |
| import org.apache.jackrabbit.oak.spi.state.NodeBuilder; |
| import org.apache.jackrabbit.oak.spi.state.NodeState; |
| import org.apache.jackrabbit.oak.spi.state.NodeStateUtils; |
| import org.apache.jackrabbit.oak.spi.state.NodeStore; |
| import org.junit.After; |
| import org.junit.Test; |
| import org.junit.runner.RunWith; |
| import org.junit.runners.Parameterized; |
| |
| import static java.util.Arrays.asList; |
| import static org.apache.jackrabbit.oak.spi.state.NodeStateUtils.getNode; |
| import static org.junit.Assert.*; |
| |
| @RunWith(Parameterized.class) |
| public class RecursiveDeleteTest { |
| private final NodeStoreFixture fixture; |
| private final NodeStore nodeStore; |
| private String testNodePath = "/content/testNode"; |
| private Random rnd = new Random(); |
| private int maxBucketSize = 100; |
| private int maxDepth = 4; |
| |
| public RecursiveDeleteTest(NodeStoreFixture fixture) { |
| this.nodeStore = fixture.createNodeStore(); |
| this.fixture = fixture; |
| } |
| |
| @After |
| public void tearDown(){ |
| fixture.dispose(nodeStore); |
| } |
| |
| @Parameterized.Parameters(name="{0}") |
| public static Collection<Object[]> fixtures() { |
| Collection<Object[]> result = new ArrayList<Object[]>(); |
| result.add(new Object[]{new MemoryFixture()}); |
| result.add(new Object[]{new DocumentMemoryFixture()}); |
| return result; |
| } |
| |
| @Test |
| public void recursiveDelete() throws Exception{ |
| int actualCount = createSubtree(10000); |
| assertEquals(actualCount, getSubtreeCount(getNode(nodeStore.getRoot(), testNodePath))); |
| |
| RecursiveDelete rd = new RecursiveDelete(nodeStore, EmptyHook.INSTANCE, () -> CommitInfo.EMPTY); |
| rd.setBatchSize(100); |
| rd.run(testNodePath); |
| |
| assertEquals(actualCount, rd.getNumRemoved()); |
| assertFalse(getNode(nodeStore.getRoot(), testNodePath).exists()); |
| |
| System.out.println(rd.getMergeCount()); |
| System.out.println(actualCount); |
| } |
| |
| @Test |
| public void multiplePaths() throws Exception{ |
| int count = 121; |
| NodeBuilder nb = nodeStore.getRoot().builder(); |
| nb.child("c"); |
| for (int i = 0; i < count; i++) { |
| nb.child("a").child("c"+i); |
| nb.child("b").child("c"+i); |
| } |
| nodeStore.merge(nb, EmptyHook.INSTANCE, CommitInfo.EMPTY); |
| |
| RecursiveDelete rd = new RecursiveDelete(nodeStore, EmptyHook.INSTANCE, () -> CommitInfo.EMPTY); |
| rd.setBatchSize(50); |
| rd.run(asList("/a", "/b")); |
| |
| assertEquals(5, rd.getMergeCount()); |
| assertEquals(2 * count + 2, rd.getNumRemoved()); |
| assertFalse(getNode(nodeStore.getRoot(), "/a").exists()); |
| assertFalse(getNode(nodeStore.getRoot(), "/b").exists()); |
| assertTrue(getNode(nodeStore.getRoot(), "/c").exists()); |
| } |
| |
| private int createSubtree(int maxNodesCount) throws CommitFailedException { |
| NodeBuilder builder = nodeStore.getRoot().builder(); |
| NodeBuilder child = TestUtil.child(builder, testNodePath); |
| AtomicInteger maxNodes = new AtomicInteger(maxNodesCount); |
| int actualCount = createChildren(child, maxNodes, 0); |
| nodeStore.merge(builder, EmptyHook.INSTANCE, CommitInfo.EMPTY); |
| return actualCount + 1; |
| } |
| |
| private int createChildren(NodeBuilder child, AtomicInteger maxNodes, int depth) { |
| if (maxNodes.get() <= 0 || depth > maxDepth) { |
| return 0; |
| } |
| |
| int totalCount = 0; |
| int childCount = rnd.nextInt(maxBucketSize); |
| if (childCount == 0) { |
| childCount = 1; |
| } |
| |
| List<NodeBuilder> children = new ArrayList<>(); |
| for (int i = 0; i < childCount && maxNodes.get() > 0; i++){ |
| maxNodes.decrementAndGet(); |
| totalCount++; |
| children.add(child.child("c"+i)); |
| |
| } |
| |
| for (NodeBuilder c : children) { |
| totalCount += createChildren(c, maxNodes, depth + 1); |
| } |
| |
| return totalCount; |
| } |
| |
| private int getSubtreeCount(NodeState state){ |
| TreeTraverser<NodeState> t = new TreeTraverser<NodeState>() { |
| @Override |
| public Iterable<NodeState> children(NodeState root) { |
| return Iterables.transform(root.getChildNodeEntries(), ChildNodeEntry::getNodeState); |
| } |
| }; |
| return t.preOrderTraversal(state).size(); |
| } |
| |
| } |