| package org.apache.lucene.queries.function; |
| |
| /* |
| * 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 org.apache.lucene.index.DirectoryReader; |
| import org.apache.lucene.index.IndexReader; |
| import org.apache.lucene.queries.function.valuesource.OrdFieldSource; |
| import org.apache.lucene.queries.function.valuesource.ReverseOrdFieldSource; |
| import org.apache.lucene.search.IndexSearcher; |
| import org.apache.lucene.search.Query; |
| import org.apache.lucene.search.QueryUtils; |
| import org.apache.lucene.search.ScoreDoc; |
| import org.apache.lucene.search.TopDocs; |
| import org.junit.BeforeClass; |
| import org.junit.Test; |
| |
| /** |
| * Test search based on OrdFieldSource and ReverseOrdFieldSource. |
| * <p/> |
| * Tests here create an index with a few documents, each having |
| * an indexed "id" field. |
| * The ord values of this field are later used for scoring. |
| * <p/> |
| * The order tests use Hits to verify that docs are ordered as expected. |
| * <p/> |
| * The exact score tests use TopDocs top to verify the exact score. |
| */ |
| public class TestOrdValues extends FunctionTestSetup { |
| |
| @BeforeClass |
| public static void beforeClass() throws Exception { |
| createIndex(false); |
| } |
| |
| /** |
| * Test OrdFieldSource |
| */ |
| @Test |
| public void testOrdFieldRank() throws Exception { |
| doTestRank(ID_FIELD, true); |
| } |
| |
| /** |
| * Test ReverseOrdFieldSource |
| */ |
| @Test |
| public void testReverseOrdFieldRank() throws Exception { |
| doTestRank(ID_FIELD, false); |
| } |
| |
| // Test that queries based on reverse/ordFieldScore scores correctly |
| private void doTestRank(String field, boolean inOrder) throws Exception { |
| IndexReader r = DirectoryReader.open(dir); |
| IndexSearcher s = newSearcher(r); |
| ValueSource vs; |
| if (inOrder) { |
| vs = new OrdFieldSource(field); |
| } else { |
| vs = new ReverseOrdFieldSource(field); |
| } |
| |
| Query q = new FunctionQuery(vs); |
| log("test: " + q); |
| QueryUtils.check(random(), q, s); |
| ScoreDoc[] h = s.search(q, null, 1000).scoreDocs; |
| assertEquals("All docs should be matched!", N_DOCS, h.length); |
| String prevID = inOrder |
| ? "IE" // greater than all ids of docs in this test ("ID0001", etc.) |
| : "IC"; // smaller than all ids of docs in this test ("ID0001", etc.) |
| |
| for (int i = 0; i < h.length; i++) { |
| String resID = s.doc(h[i].doc).get(ID_FIELD); |
| log(i + ". score=" + h[i].score + " - " + resID); |
| log(s.explain(q, h[i].doc)); |
| if (inOrder) { |
| assertTrue("res id " + resID + " should be < prev res id " + prevID, resID.compareTo(prevID) < 0); |
| } else { |
| assertTrue("res id " + resID + " should be > prev res id " + prevID, resID.compareTo(prevID) > 0); |
| } |
| prevID = resID; |
| } |
| r.close(); |
| } |
| |
| /** |
| * Test exact score for OrdFieldSource |
| */ |
| @Test |
| public void testOrdFieldExactScore() throws Exception { |
| doTestExactScore(ID_FIELD, true); |
| } |
| |
| /** |
| * Test exact score for ReverseOrdFieldSource |
| */ |
| @Test |
| public void testReverseOrdFieldExactScore() throws Exception { |
| doTestExactScore(ID_FIELD, false); |
| } |
| |
| |
| // Test that queries based on reverse/ordFieldScore returns docs with expected score. |
| private void doTestExactScore(String field, boolean inOrder) throws Exception { |
| IndexReader r = DirectoryReader.open(dir); |
| IndexSearcher s = newSearcher(r); |
| ValueSource vs; |
| if (inOrder) { |
| vs = new OrdFieldSource(field); |
| } else { |
| vs = new ReverseOrdFieldSource(field); |
| } |
| Query q = new FunctionQuery(vs); |
| TopDocs td = s.search(q, null, 1000); |
| assertEquals("All docs should be matched!", N_DOCS, td.totalHits); |
| ScoreDoc sd[] = td.scoreDocs; |
| for (int i = 0; i < sd.length; i++) { |
| float score = sd[i].score; |
| String id = s.getIndexReader().document(sd[i].doc).get(ID_FIELD); |
| log("-------- " + i + ". Explain doc " + id); |
| log(s.explain(q, sd[i].doc)); |
| float expectedScore = N_DOCS - i - 1; |
| assertEquals("score of result " + i + " shuould be " + expectedScore + " != " + score, expectedScore, score, TEST_SCORE_TOLERANCE_DELTA); |
| String expectedId = inOrder |
| ? id2String(N_DOCS - i) // in-order ==> larger values first |
| : id2String(i + 1); // reverse ==> smaller values first |
| assertTrue("id of result " + i + " shuould be " + expectedId + " != " + score, expectedId.equals(id)); |
| } |
| r.close(); |
| } |
| |
| // LUCENE-1250 |
| public void testEqualsNull() throws Exception { |
| OrdFieldSource ofs = new OrdFieldSource("f"); |
| assertFalse(ofs.equals(null)); |
| |
| ReverseOrdFieldSource rofs = new ReverseOrdFieldSource("f"); |
| assertFalse(rofs.equals(null)); |
| } |
| |
| } |