| /* |
| * 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 org.apache.lucene.document.Document; |
| import org.apache.lucene.document.Field; |
| import org.apache.lucene.util.*; |
| import org.apache.lucene.store.*; |
| |
| import org.junit.Test; |
| |
| import java.io.IOException; |
| |
| public class TestIsCurrent extends LuceneTestCase { |
| |
| private RandomIndexWriter writer; |
| |
| private Directory directory; |
| |
| @Override |
| public void setUp() throws Exception { |
| super.setUp(); |
| |
| // initialize directory |
| directory = newDirectory(); |
| writer = new RandomIndexWriter(random(), directory); |
| |
| // write document |
| Document doc = new Document(); |
| doc.add(newTextField("UUID", "1", Field.Store.YES)); |
| writer.addDocument(doc); |
| writer.commit(); |
| } |
| |
| @Override |
| public void tearDown() throws Exception { |
| super.tearDown(); |
| writer.close(); |
| directory.close(); |
| } |
| |
| /** |
| * Failing testcase showing the trouble |
| */ |
| @Test |
| public void testDeleteByTermIsCurrent() throws IOException { |
| |
| // get reader |
| DirectoryReader reader = writer.getReader(); |
| |
| // assert index has a document and reader is up2date |
| assertEquals("One document should be in the index", 1, writer.getDocStats().numDocs); |
| assertTrue("One document added, reader should be current", reader.isCurrent()); |
| |
| // remove document |
| Term idTerm = new Term("UUID", "1"); |
| writer.deleteDocuments(idTerm); |
| writer.commit(); |
| |
| // assert document has been deleted (index changed), reader is stale |
| assertEquals("Document should be removed", 0, writer.getDocStats().numDocs); |
| assertFalse("Reader should be stale", reader.isCurrent()); |
| |
| reader.close(); |
| } |
| |
| /** |
| * Testcase for example to show that writer.deleteAll() is working as expected |
| */ |
| @Test |
| public void testDeleteAllIsCurrent() throws IOException { |
| |
| // get reader |
| DirectoryReader reader = writer.getReader(); |
| |
| // assert index has a document and reader is up2date |
| assertEquals("One document should be in the index", 1, writer.getDocStats().numDocs); |
| assertTrue("Document added, reader should be stale ", reader.isCurrent()); |
| |
| // remove all documents |
| writer.deleteAll(); |
| writer.commit(); |
| |
| // assert document has been deleted (index changed), reader is stale |
| assertEquals("Document should be removed", 0, writer.getDocStats().numDocs); |
| assertFalse("Reader should be stale", reader.isCurrent()); |
| |
| reader.close(); |
| } |
| } |