package org.apache.lucene.index; /** * 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. */ import java.io.IOException; import org.apache.lucene.util.LuceneTestCase; import org.apache.lucene.util._TestUtil; import org.apache.lucene.analysis.SimpleAnalyzer; import org.apache.lucene.document.Document; import org.apache.lucene.document.Field; import org.apache.lucene.document.Field.Index; import org.apache.lucene.document.Field.Store; import org.apache.lucene.document.Field.TermVector; import org.apache.lucene.index.IndexWriter.MaxFieldLength; import org.apache.lucene.store.MockRAMDirectory; import org.apache.lucene.store.RAMDirectory; /** * Some tests for {@link ParallelReader}s with empty indexes * * @author Christian Kohlschuetter */ public class TestParallelReaderEmptyIndex extends LuceneTestCase { /** * Creates two empty indexes and wraps a ParallelReader around. Adding this * reader to a new index should not throw any exception. * * @throws IOException */ public void testEmptyIndex() throws IOException { RAMDirectory rd1 = new MockRAMDirectory(); IndexWriter iw = new IndexWriter(rd1, new SimpleAnalyzer(), true, MaxFieldLength.UNLIMITED); iw.close(); RAMDirectory rd2 = new MockRAMDirectory(rd1); RAMDirectory rdOut = new MockRAMDirectory(); IndexWriter iwOut = new IndexWriter(rdOut, new SimpleAnalyzer(), true, MaxFieldLength.UNLIMITED); ParallelReader pr = new ParallelReader(); pr.add(IndexReader.open(rd1,true)); pr.add(IndexReader.open(rd2,true)); // When unpatched, Lucene crashes here with a NoSuchElementException (caused by ParallelTermEnum) iwOut.addIndexes(new IndexReader[] { pr }); iwOut.optimize(); iwOut.close(); _TestUtil.checkIndex(rdOut); rdOut.close(); rd1.close(); rd2.close(); } /** * This method creates an empty index (numFields=0, numDocs=0) but is marked * to have TermVectors. Adding this index to another index should not throw * any exception. */ public void testEmptyIndexWithVectors() throws IOException { RAMDirectory rd1 = new MockRAMDirectory(); { IndexWriter iw = new IndexWriter(rd1, new SimpleAnalyzer(), true, MaxFieldLength.UNLIMITED); Document doc = new Document(); doc.add(new Field("test", "", Store.NO, Index.ANALYZED, TermVector.YES)); iw.addDocument(doc); doc.add(new Field("test", "", Store.NO, Index.ANALYZED, TermVector.NO)); iw.addDocument(doc); iw.close(); IndexReader ir = IndexReader.open(rd1,false); ir.deleteDocument(0); ir.close(); iw = new IndexWriter(rd1, new SimpleAnalyzer(), false, MaxFieldLength.UNLIMITED); iw.optimize(); iw.close(); } RAMDirectory rd2 = new MockRAMDirectory(); { IndexWriter iw = new IndexWriter(rd2, new SimpleAnalyzer(), true, MaxFieldLength.UNLIMITED); Document doc = new Document(); iw.addDocument(doc); iw.close(); } RAMDirectory rdOut = new MockRAMDirectory(); IndexWriter iwOut = new IndexWriter(rdOut, new SimpleAnalyzer(), true, MaxFieldLength.UNLIMITED); ParallelReader pr = new ParallelReader(); pr.add(IndexReader.open(rd1,true)); pr.add(IndexReader.open(rd2,true)); // When unpatched, Lucene crashes here with an ArrayIndexOutOfBoundsException (caused by TermVectorsWriter) iwOut.addIndexes(new IndexReader[] { pr }); // ParallelReader closes any IndexReader you added to it: pr.close(); rd1.close(); rd2.close(); iwOut.optimize(); iwOut.close(); _TestUtil.checkIndex(rdOut); rdOut.close(); } }