| /* |
| * 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.lucene.index; |
| |
| import java.io.IOException; |
| import java.nio.charset.StandardCharsets; |
| import java.util.Collections; |
| import java.util.LinkedList; |
| import java.util.List; |
| import java.util.concurrent.TimeUnit; |
| import java.util.concurrent.atomic.AtomicBoolean; |
| import java.util.concurrent.atomic.AtomicInteger; |
| |
| import org.apache.lucene.store.Directory; |
| import org.apache.lucene.util.LuceneTestCase; |
| import org.apache.lucene.util.StringHelper; |
| import org.apache.lucene.util.TestUtil; |
| import org.apache.lucene.util.Version; |
| |
| public class TestMergePolicy extends LuceneTestCase { |
| |
| public void testWaitForOneMerge() throws IOException, InterruptedException { |
| try (Directory dir = newDirectory()) { |
| MergePolicy.MergeSpecification ms = createRandomMergeSpecification(dir, 1 + random().nextInt(10)); |
| for (MergePolicy.OneMerge m : ms.merges) { |
| assertFalse(m.hasCompletedSuccessfully().isPresent()); |
| } |
| Thread t = new Thread(() -> { |
| try { |
| for (MergePolicy.OneMerge m : ms.merges) { |
| m.close(true, false, mr -> {}); |
| } |
| } catch (IOException e) { |
| throw new AssertionError(e); |
| } |
| }); |
| t.start(); |
| assertTrue(ms.await(100, TimeUnit.HOURS)); |
| for (MergePolicy.OneMerge m : ms.merges) { |
| assertTrue(m.hasCompletedSuccessfully().get()); |
| } |
| t.join(); |
| } |
| } |
| |
| public void testTimeout() throws IOException, InterruptedException { |
| try (Directory dir = newDirectory()) { |
| MergePolicy.MergeSpecification ms = createRandomMergeSpecification(dir, 3); |
| for (MergePolicy.OneMerge m : ms.merges) { |
| assertFalse(m.hasCompletedSuccessfully().isPresent()); |
| } |
| Thread t = new Thread(() -> { |
| try { |
| ms.merges.get(0).close(true, false, mr -> {}); |
| } catch (IOException e) { |
| throw new AssertionError(e); |
| } |
| }); |
| t.start(); |
| assertFalse(ms.await(10, TimeUnit.MILLISECONDS)); |
| assertFalse(ms.merges.get(1).hasCompletedSuccessfully().isPresent()); |
| t.join(); |
| } |
| } |
| |
| public void testTimeoutLargeNumberOfMerges() throws IOException, InterruptedException { |
| try (Directory dir = newDirectory()) { |
| MergePolicy.MergeSpecification ms = createRandomMergeSpecification(dir, 10000); |
| for (MergePolicy.OneMerge m : ms.merges) { |
| assertFalse(m.hasCompletedSuccessfully().isPresent()); |
| } |
| AtomicInteger i = new AtomicInteger(0); |
| AtomicBoolean stop = new AtomicBoolean(false); |
| Thread t = new Thread(() -> { |
| while (stop.get() == false) { |
| try { |
| ms.merges.get(i.getAndIncrement()).close(true, false, mr -> {}); |
| Thread.sleep(1); |
| } catch (IOException | InterruptedException e) { |
| throw new AssertionError(e); |
| } |
| } |
| }); |
| t.start(); |
| assertFalse(ms.await(10, TimeUnit.MILLISECONDS)); |
| stop.set(true); |
| t.join(); |
| for (int j = 0; j < ms.merges.size(); j++) { |
| if (j < i.get()) { |
| assertTrue(ms.merges.get(j).hasCompletedSuccessfully().get()); |
| } else { |
| assertFalse(ms.merges.get(j).hasCompletedSuccessfully().isPresent()); |
| } |
| } |
| } |
| } |
| |
| public void testFinishTwice() throws IOException { |
| try (Directory dir = newDirectory()) { |
| MergePolicy.MergeSpecification spec = createRandomMergeSpecification(dir, 1); |
| MergePolicy.OneMerge oneMerge = spec.merges.get(0); |
| oneMerge.close(true, false, mr -> {}); |
| expectThrows(IllegalStateException.class, () -> oneMerge.close(false, false, mr -> {})); |
| } |
| } |
| |
| public void testTotalMaxDoc() throws IOException { |
| try (Directory dir = newDirectory()) { |
| MergePolicy.MergeSpecification spec = createRandomMergeSpecification(dir, 1); |
| int docs = 0; |
| MergePolicy.OneMerge oneMerge = spec.merges.get(0); |
| for (SegmentCommitInfo info : oneMerge.segments) { |
| docs += info.info.maxDoc(); |
| } |
| assertEquals(docs, oneMerge.totalMaxDoc); |
| } |
| } |
| |
| private static MergePolicy.MergeSpecification createRandomMergeSpecification(Directory dir, int numMerges) { |
| MergePolicy.MergeSpecification ms = new MergePolicy.MergeSpecification(); |
| for (int ii = 0; ii < numMerges; ++ii) { |
| final SegmentInfo si = new SegmentInfo( |
| dir, // dir |
| Version.LATEST, // version |
| Version.LATEST, // min version |
| TestUtil.randomSimpleString(random()), // name |
| random().nextInt(1000), // maxDoc |
| random().nextBoolean(), // isCompoundFile |
| null, // codec |
| Collections.emptyMap(), // diagnostics |
| TestUtil.randomSimpleString(// id |
| random(), |
| StringHelper.ID_LENGTH, |
| StringHelper.ID_LENGTH).getBytes(StandardCharsets.US_ASCII), |
| Collections.emptyMap(), // attributes |
| null /* indexSort */); |
| final List<SegmentCommitInfo> segments = new LinkedList<SegmentCommitInfo>(); |
| segments.add(new SegmentCommitInfo(si, 0, 0, 0, 0, 0, StringHelper.randomId())); |
| ms.add(new MergePolicy.OneMerge(segments)); |
| } |
| return ms; |
| } |
| } |