| /* |
| * 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.nio.file.Path; |
| import java.util.HashSet; |
| import java.util.Set; |
| |
| import org.apache.lucene.analysis.MockAnalyzer; |
| import org.apache.lucene.document.Document; |
| import org.apache.lucene.document.Field; |
| import org.apache.lucene.store.BaseDirectoryWrapper; |
| import org.apache.lucene.util.LuceneTestCase; |
| import org.apache.lucene.util.TestUtil; |
| |
| // Make sure if you use NoDeletionPolicy that no file |
| // referenced by a commit point is ever deleted |
| |
| public class TestNeverDelete extends LuceneTestCase { |
| |
| public void testIndexing() throws Exception { |
| final Path tmpDir = createTempDir("TestNeverDelete"); |
| final BaseDirectoryWrapper d = newFSDirectory(tmpDir); |
| |
| final RandomIndexWriter w = new RandomIndexWriter(random(), |
| d, |
| newIndexWriterConfig(new MockAnalyzer(random())) |
| .setIndexDeletionPolicy(NoDeletionPolicy.INSTANCE)); |
| w.w.getConfig().setMaxBufferedDocs(TestUtil.nextInt(random(), 5, 30)); |
| |
| w.commit(); |
| Thread[] indexThreads = new Thread[random().nextInt(4)]; |
| final long stopTime = System.currentTimeMillis() + atLeast(1000); |
| for (int x=0; x < indexThreads.length; x++) { |
| indexThreads[x] = new Thread() { |
| @Override |
| public void run() { |
| try { |
| int docCount = 0; |
| while (System.currentTimeMillis() < stopTime) { |
| final Document doc = new Document(); |
| doc.add(newStringField("dc", ""+docCount, Field.Store.YES)); |
| doc.add(newTextField("field", "here is some text", Field.Store.YES)); |
| w.addDocument(doc); |
| |
| if (docCount % 13 == 0) { |
| w.commit(); |
| } |
| docCount++; |
| } |
| } catch (Exception e) { |
| throw new RuntimeException(e); |
| } |
| } |
| }; |
| indexThreads[x].setName("Thread " + x); |
| indexThreads[x].start(); |
| } |
| |
| final Set<String> allFiles = new HashSet<>(); |
| |
| DirectoryReader r = DirectoryReader.open(d); |
| while(System.currentTimeMillis() < stopTime) { |
| final IndexCommit ic = r.getIndexCommit(); |
| if (VERBOSE) { |
| System.out.println("TEST: check files: " + ic.getFileNames()); |
| } |
| allFiles.addAll(ic.getFileNames()); |
| // Make sure no old files were removed |
| for(String fileName : allFiles) { |
| assertTrue("file " + fileName + " does not exist", slowFileExists(d, fileName)); |
| } |
| DirectoryReader r2 = DirectoryReader.openIfChanged(r); |
| if (r2 != null) { |
| r.close(); |
| r = r2; |
| } |
| Thread.sleep(1); |
| } |
| r.close(); |
| |
| for(Thread t : indexThreads) { |
| t.join(); |
| } |
| w.close(); |
| d.close(); |
| } |
| } |