| /* |
| * 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.util.concurrent.CountDownLatch; |
| import java.util.concurrent.atomic.AtomicLong; |
| |
| import org.apache.lucene.store.AlreadyClosedException; |
| import org.apache.lucene.store.Directory; |
| import org.apache.lucene.util.LuceneTestCase; |
| import org.apache.lucene.util.Version; |
| |
| public class TestDocumentsWriterPerThreadPool extends LuceneTestCase { |
| |
| public void testLockReleaseAndClose() throws IOException { |
| try (Directory directory = newDirectory()) { |
| DocumentsWriterPerThreadPool pool = new DocumentsWriterPerThreadPool(() -> |
| new DocumentsWriterPerThread(Version.LATEST.major, "", directory, directory, |
| newIndexWriterConfig(), new DocumentsWriterDeleteQueue(null), null, new AtomicLong(), false)); |
| |
| DocumentsWriterPerThread first = pool.getAndLock(); |
| assertEquals(1, pool.size()); |
| DocumentsWriterPerThread second = pool.getAndLock(); |
| assertEquals(2, pool.size()); |
| pool.marksAsFreeAndUnlock(first); |
| assertEquals(2, pool.size()); |
| DocumentsWriterPerThread third = pool.getAndLock(); |
| assertSame(first, third); |
| assertEquals(2, pool.size()); |
| pool.checkout(third); |
| assertEquals(1, pool.size()); |
| |
| pool.close(); |
| assertEquals(1, pool.size()); |
| pool.marksAsFreeAndUnlock(second); |
| assertEquals(1, pool.size()); |
| for (DocumentsWriterPerThread lastPerThead : pool.filterAndLock(x -> true)) { |
| pool.checkout(lastPerThead); |
| lastPerThead.unlock(); |
| } |
| assertEquals(0, pool.size()); |
| } |
| } |
| |
| public void testCloseWhileNewWritersLocked() throws IOException, InterruptedException { |
| try (Directory directory = newDirectory()) { |
| DocumentsWriterPerThreadPool pool = new DocumentsWriterPerThreadPool(() -> |
| new DocumentsWriterPerThread(Version.LATEST.major, "", directory, directory, |
| newIndexWriterConfig(), new DocumentsWriterDeleteQueue(null), null, new AtomicLong(), false)); |
| |
| DocumentsWriterPerThread first = pool.getAndLock(); |
| pool.lockNewWriters(); |
| CountDownLatch latch = new CountDownLatch(1); |
| Thread t = new Thread(() -> { |
| try { |
| latch.countDown(); |
| pool.getAndLock(); |
| fail(); |
| } catch (AlreadyClosedException e) { |
| // fine |
| } |
| }); |
| t.start(); |
| latch.await(); |
| while (t.getState().equals(Thread.State.WAITING) == false) { |
| Thread.yield(); |
| } |
| first.unlock(); |
| pool.close(); |
| pool.unlockNewWriters(); |
| for (DocumentsWriterPerThread perThread : pool.filterAndLock(x -> true)) { |
| assertTrue(pool.checkout(perThread)); |
| perThread.unlock(); |
| } |
| assertEquals(0, pool.size()); |
| } |
| } |
| } |