| /* |
| * 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.analysis.CannedTokenStream; |
| import org.apache.lucene.analysis.Token; |
| import org.apache.lucene.document.Document; |
| import org.apache.lucene.document.TextField; |
| import org.apache.lucene.store.Directory; |
| import org.apache.lucene.util.BytesRef; |
| import org.apache.lucene.util.LuceneTestCase; |
| |
| // LUCENE-6382 |
| public class TestMaxPosition extends LuceneTestCase { |
| |
| public void testTooBigPosition() throws Exception { |
| Directory dir = newDirectory(); |
| IndexWriter iw = new IndexWriter(dir, newIndexWriterConfig(null)); |
| Document doc = new Document(); |
| // This is at position 1: |
| Token t1 = new Token("foo", 0, 3); |
| t1.setPositionIncrement(2); |
| if (random().nextBoolean()) { |
| t1.setPayload(new BytesRef(new byte[] { 0x1 } )); |
| } |
| Token t2 = new Token("foo", 4, 7); |
| // This should overflow max: |
| t2.setPositionIncrement(IndexWriter.MAX_POSITION); |
| if (random().nextBoolean()) { |
| t2.setPayload(new BytesRef(new byte[] { 0x1 } )); |
| } |
| doc.add(new TextField("foo", new CannedTokenStream(new Token[] {t1, t2}))); |
| expectThrows(IllegalArgumentException.class, () -> { |
| iw.addDocument(doc); |
| }); |
| |
| // Document should not be visible: |
| IndexReader r = DirectoryReader.open(iw); |
| assertEquals(0, r.numDocs()); |
| r.close(); |
| |
| iw.close(); |
| dir.close(); |
| } |
| |
| public void testMaxPosition() throws Exception { |
| Directory dir = newDirectory(); |
| IndexWriter iw = new IndexWriter(dir, newIndexWriterConfig(null)); |
| Document doc = new Document(); |
| // This is at position 0: |
| Token t1 = new Token("foo", 0, 3); |
| if (random().nextBoolean()) { |
| t1.setPayload(new BytesRef(new byte[] { 0x1 } )); |
| } |
| Token t2 = new Token("foo", 4, 7); |
| t2.setPositionIncrement(IndexWriter.MAX_POSITION); |
| if (random().nextBoolean()) { |
| t2.setPayload(new BytesRef(new byte[] { 0x1 } )); |
| } |
| doc.add(new TextField("foo", new CannedTokenStream(new Token[] {t1, t2}))); |
| iw.addDocument(doc); |
| |
| // Document should be visible: |
| IndexReader r = DirectoryReader.open(iw); |
| assertEquals(1, r.numDocs()); |
| PostingsEnum postings = MultiTerms.getTermPostingsEnum(r, "foo", new BytesRef("foo")); |
| |
| // "foo" appears in docID=0 |
| assertEquals(0, postings.nextDoc()); |
| |
| // "foo" appears 2 times in the doc |
| assertEquals(2, postings.freq()); |
| |
| // first at pos=0 |
| assertEquals(0, postings.nextPosition()); |
| |
| // next at pos=MAX |
| assertEquals(IndexWriter.MAX_POSITION, postings.nextPosition()); |
| |
| r.close(); |
| |
| iw.close(); |
| dir.close(); |
| } |
| } |