| /* |
| * 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.search; |
| |
| |
| import java.io.IOException; |
| import java.util.Arrays; |
| |
| import org.apache.lucene.document.Document; |
| import org.apache.lucene.document.Field; |
| import org.apache.lucene.document.TextField; |
| import org.apache.lucene.index.DirectoryReader; |
| import org.apache.lucene.index.IndexWriter; |
| import org.apache.lucene.index.IndexWriterConfig; |
| import org.apache.lucene.index.PostingsEnum; |
| import org.apache.lucene.index.Term; |
| import org.apache.lucene.store.Directory; |
| import org.apache.lucene.util.LuceneTestCase; |
| |
| /** simple tests for unionpostingsenum */ |
| public class TestMultiPhraseEnum extends LuceneTestCase { |
| |
| /** Tests union on one document */ |
| public void testOneDocument() throws IOException { |
| Directory dir = newDirectory(); |
| IndexWriterConfig iwc = newIndexWriterConfig(); |
| iwc.setMergePolicy(newLogMergePolicy()); |
| IndexWriter writer = new IndexWriter(dir, iwc); |
| |
| Document doc = new Document(); |
| doc.add(new TextField("field", "foo bar", Field.Store.NO)); |
| writer.addDocument(doc); |
| |
| DirectoryReader ir = DirectoryReader.open(writer); |
| writer.close(); |
| |
| PostingsEnum p1 = getOnlyLeafReader(ir).postings(new Term("field", "foo"), PostingsEnum.POSITIONS); |
| PostingsEnum p2 = getOnlyLeafReader(ir).postings(new Term("field", "bar"), PostingsEnum.POSITIONS); |
| PostingsEnum union = new MultiPhraseQuery.UnionPostingsEnum(Arrays.asList(p1, p2)); |
| |
| assertEquals(-1, union.docID()); |
| |
| assertEquals(0, union.nextDoc()); |
| assertEquals(2, union.freq()); |
| assertEquals(0, union.nextPosition()); |
| assertEquals(1, union.nextPosition()); |
| |
| assertEquals(DocIdSetIterator.NO_MORE_DOCS, union.nextDoc()); |
| |
| ir.close(); |
| dir.close(); |
| } |
| |
| /** Tests union on a few documents */ |
| public void testSomeDocuments() throws IOException { |
| Directory dir = newDirectory(); |
| IndexWriterConfig iwc = newIndexWriterConfig(); |
| iwc.setMergePolicy(newLogMergePolicy()); |
| IndexWriter writer = new IndexWriter(dir, iwc); |
| |
| Document doc = new Document(); |
| doc.add(new TextField("field", "foo", Field.Store.NO)); |
| writer.addDocument(doc); |
| |
| writer.addDocument(new Document()); |
| |
| doc = new Document(); |
| doc.add(new TextField("field", "foo bar", Field.Store.NO)); |
| writer.addDocument(doc); |
| |
| doc = new Document(); |
| doc.add(new TextField("field", "bar", Field.Store.NO)); |
| writer.addDocument(doc); |
| |
| writer.forceMerge(1); |
| DirectoryReader ir = DirectoryReader.open(writer); |
| writer.close(); |
| |
| PostingsEnum p1 = getOnlyLeafReader(ir).postings(new Term("field", "foo"), PostingsEnum.POSITIONS); |
| PostingsEnum p2 = getOnlyLeafReader(ir).postings(new Term("field", "bar"), PostingsEnum.POSITIONS); |
| PostingsEnum union = new MultiPhraseQuery.UnionPostingsEnum(Arrays.asList(p1, p2)); |
| |
| assertEquals(-1, union.docID()); |
| |
| assertEquals(0, union.nextDoc()); |
| assertEquals(1, union.freq()); |
| assertEquals(0, union.nextPosition()); |
| |
| assertEquals(2, union.nextDoc()); |
| assertEquals(2, union.freq()); |
| assertEquals(0, union.nextPosition()); |
| assertEquals(1, union.nextPosition()); |
| |
| assertEquals(3, union.nextDoc()); |
| assertEquals(1, union.freq()); |
| assertEquals(0, union.nextPosition()); |
| |
| assertEquals(DocIdSetIterator.NO_MORE_DOCS, union.nextDoc()); |
| |
| ir.close(); |
| dir.close(); |
| } |
| } |