| 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 java.util.Random; |
| |
| import org.apache.lucene.analysis.MockAnalyzer; |
| import org.apache.lucene.document.Document; |
| import org.apache.lucene.document.Field; |
| import org.apache.lucene.document.TextField; |
| import org.apache.lucene.search.CollectionStatistics; |
| import org.apache.lucene.search.TermStatistics; |
| import org.apache.lucene.search.similarities.DefaultSimilarity; |
| import org.apache.lucene.search.similarities.PerFieldSimilarityWrapper; |
| import org.apache.lucene.search.similarities.Similarity; |
| import org.apache.lucene.store.Directory; |
| import org.apache.lucene.util.LineFileDocs; |
| import org.apache.lucene.util.LuceneTestCase.Slow; |
| import org.apache.lucene.util.LuceneTestCase.SuppressCodecs; |
| import org.apache.lucene.util.LuceneTestCase; |
| import org.apache.lucene.util._TestUtil; |
| |
| /** |
| * Test that norms info is preserved during index life - including |
| * separate norms, addDocument, addIndexes, forceMerge. |
| */ |
| @SuppressCodecs({ "Memory", "Direct", "SimpleText" }) |
| @Slow |
| public class TestNorms extends LuceneTestCase { |
| final String byteTestField = "normsTestByte"; |
| |
| class CustomNormEncodingSimilarity extends DefaultSimilarity { |
| @Override |
| public byte encodeNormValue(float f) { |
| return (byte) f; |
| } |
| |
| @Override |
| public float decodeNormValue(byte b) { |
| return (float) b; |
| } |
| |
| @Override |
| public float lengthNorm(FieldInvertState state) { |
| return state.getLength(); |
| } |
| } |
| |
| // LUCENE-1260 |
| public void testCustomEncoder() throws Exception { |
| Directory dir = newDirectory(); |
| IndexWriterConfig config = newIndexWriterConfig(TEST_VERSION_CURRENT, new MockAnalyzer(random())); |
| config.setSimilarity(new CustomNormEncodingSimilarity()); |
| RandomIndexWriter writer = new RandomIndexWriter(random(), dir, config); |
| Document doc = new Document(); |
| Field foo = newTextField("foo", "", Field.Store.NO); |
| Field bar = newTextField("bar", "", Field.Store.NO); |
| doc.add(foo); |
| doc.add(bar); |
| |
| for (int i = 0; i < 100; i++) { |
| bar.setStringValue("singleton"); |
| writer.addDocument(doc); |
| } |
| |
| IndexReader reader = writer.getReader(); |
| writer.close(); |
| |
| NumericDocValues fooNorms = MultiDocValues.getNormValues(reader, "foo"); |
| for (int i = 0; i < reader.maxDoc(); i++) { |
| assertEquals(0, fooNorms.get(i)); |
| } |
| |
| NumericDocValues barNorms = MultiDocValues.getNormValues(reader, "bar"); |
| for (int i = 0; i < reader.maxDoc(); i++) { |
| assertEquals(1, barNorms.get(i)); |
| } |
| |
| reader.close(); |
| dir.close(); |
| } |
| |
| public void testMaxByteNorms() throws IOException { |
| Directory dir = newFSDirectory(_TestUtil.getTempDir("TestNorms.testMaxByteNorms")); |
| buildIndex(dir); |
| AtomicReader open = SlowCompositeReaderWrapper.wrap(DirectoryReader.open(dir)); |
| NumericDocValues normValues = open.getNormValues(byteTestField); |
| assertNotNull(normValues); |
| for (int i = 0; i < open.maxDoc(); i++) { |
| StoredDocument document = open.document(i); |
| int expected = Integer.parseInt(document.get(byteTestField)); |
| assertEquals(expected, normValues.get(i)); |
| } |
| open.close(); |
| dir.close(); |
| } |
| |
| // TODO: create a testNormsNotPresent ourselves by adding/deleting/merging docs |
| |
| public void buildIndex(Directory dir) throws IOException { |
| Random random = random(); |
| IndexWriterConfig config = newIndexWriterConfig(TEST_VERSION_CURRENT, |
| new MockAnalyzer(random())); |
| Similarity provider = new MySimProvider(); |
| config.setSimilarity(provider); |
| RandomIndexWriter writer = new RandomIndexWriter(random, dir, config); |
| final LineFileDocs docs = new LineFileDocs(random, true); |
| int num = atLeast(100); |
| for (int i = 0; i < num; i++) { |
| Document doc = docs.nextDoc(); |
| int boost = random().nextInt(255); |
| Field f = new TextField(byteTestField, "" + boost, Field.Store.YES); |
| f.setBoost(boost); |
| doc.add(f); |
| writer.addDocument(doc); |
| doc.removeField(byteTestField); |
| if (rarely()) { |
| writer.commit(); |
| } |
| } |
| writer.commit(); |
| writer.close(); |
| docs.close(); |
| } |
| |
| |
| public class MySimProvider extends PerFieldSimilarityWrapper { |
| Similarity delegate = new DefaultSimilarity(); |
| |
| @Override |
| public float queryNorm(float sumOfSquaredWeights) { |
| |
| return delegate.queryNorm(sumOfSquaredWeights); |
| } |
| |
| @Override |
| public Similarity get(String field) { |
| if (byteTestField.equals(field)) { |
| return new ByteEncodingBoostSimilarity(); |
| } else { |
| return delegate; |
| } |
| } |
| |
| @Override |
| public float coord(int overlap, int maxOverlap) { |
| return delegate.coord(overlap, maxOverlap); |
| } |
| } |
| |
| |
| public static class ByteEncodingBoostSimilarity extends Similarity { |
| |
| @Override |
| public long computeNorm(FieldInvertState state) { |
| int boost = (int) state.getBoost(); |
| return (0xFF & boost); |
| } |
| |
| @Override |
| public SimWeight computeWeight(float queryBoost, CollectionStatistics collectionStats, TermStatistics... termStats) { |
| throw new UnsupportedOperationException(); |
| } |
| |
| @Override |
| public SimScorer simScorer(SimWeight weight, AtomicReaderContext context) throws IOException { |
| throw new UnsupportedOperationException(); |
| } |
| } |
| } |