| /* |
| * 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 org.apache.lucene.analysis.TokenStream; |
| import org.apache.lucene.analysis.tokenattributes.CharTermAttribute; |
| import org.apache.lucene.analysis.tokenattributes.OffsetAttribute; |
| import org.apache.lucene.analysis.tokenattributes.PositionIncrementAttribute; |
| import org.apache.lucene.document.Document; |
| import org.apache.lucene.document.TextField; |
| import org.apache.lucene.store.Directory; |
| import org.apache.lucene.util.LuceneTestCase; |
| |
| public class TestSameTokenSamePosition extends LuceneTestCase { |
| |
| /** |
| * Attempt to reproduce an assertion error that happens |
| * only with the trunk version around April 2011. |
| */ |
| public void test() throws Exception { |
| Directory dir = newDirectory(); |
| RandomIndexWriter riw = new RandomIndexWriter(random(), dir); |
| Document doc = new Document(); |
| doc.add(new TextField("eng", new BugReproTokenStream())); |
| riw.addDocument(doc); |
| riw.close(); |
| dir.close(); |
| } |
| |
| /** |
| * Same as the above, but with more docs |
| */ |
| public void testMoreDocs() throws Exception { |
| Directory dir = newDirectory(); |
| RandomIndexWriter riw = new RandomIndexWriter(random(), dir); |
| for (int i = 0; i < 100; i++) { |
| Document doc = new Document(); |
| doc.add(new TextField("eng", new BugReproTokenStream())); |
| riw.addDocument(doc); |
| } |
| riw.close(); |
| dir.close(); |
| } |
| } |
| |
| final class BugReproTokenStream extends TokenStream { |
| private final CharTermAttribute termAtt = addAttribute(CharTermAttribute.class); |
| private final OffsetAttribute offsetAtt = addAttribute(OffsetAttribute.class); |
| private final PositionIncrementAttribute posIncAtt = addAttribute(PositionIncrementAttribute.class); |
| private static final int TOKEN_COUNT = 4; |
| private int nextTokenIndex = 0; |
| private final String terms[] = new String[]{"six", "six", "drunken", "drunken"}; |
| private final int starts[] = new int[]{0, 0, 4, 4}; |
| private final int ends[] = new int[]{3, 3, 11, 11}; |
| private final int incs[] = new int[]{1, 0, 1, 0}; |
| |
| @Override |
| public boolean incrementToken() { |
| if (nextTokenIndex < TOKEN_COUNT) { |
| termAtt.setEmpty().append(terms[nextTokenIndex]); |
| offsetAtt.setOffset(starts[nextTokenIndex], ends[nextTokenIndex]); |
| posIncAtt.setPositionIncrement(incs[nextTokenIndex]); |
| nextTokenIndex++; |
| return true; |
| } else { |
| return false; |
| } |
| } |
| |
| @Override |
| public void reset() throws IOException { |
| super.reset(); |
| this.nextTokenIndex = 0; |
| } |
| } |