| package org.apache.solr.search; |
| |
| /* |
| * 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.ArrayList; |
| import java.util.Collections; |
| |
| import org.apache.lucene.index.FilterLeafReader; |
| import org.apache.lucene.index.LeafReader; |
| import org.apache.lucene.index.BinaryDocValues; |
| import org.apache.lucene.index.DocValuesType; |
| import org.apache.lucene.index.FieldInfo; |
| import org.apache.lucene.index.FieldInfos; |
| import org.apache.lucene.index.NumericDocValues; |
| import org.apache.lucene.index.SortedDocValues; |
| import org.apache.lucene.index.SortedSetDocValues; |
| import org.apache.lucene.uninverting.UninvertingReader; |
| |
| /** |
| * Lucene 5.0 removes "accidental" insanity, so you must explicitly |
| * create it. |
| * <p> |
| * This class creates insanity for two specific situations: |
| * <ul> |
| * <li>calling {@code ord} or {@code rord} functions on a single-valued numeric field. |
| * <li>doing grouped faceting ({@code group.facet}) on a single-valued numeric field. |
| * </ul> |
| */ |
| @Deprecated |
| public class Insanity { |
| |
| /** |
| * Returns a view over {@code sane} where {@code insaneField} is a string |
| * instead of a numeric. |
| */ |
| public static LeafReader wrapInsanity(LeafReader sane, String insaneField) { |
| return new UninvertingReader(new InsaneReader(sane, insaneField), |
| Collections.singletonMap(insaneField, UninvertingReader.Type.SORTED)); |
| } |
| |
| /** Hides the proper numeric dv type for the field */ |
| private static class InsaneReader extends FilterLeafReader { |
| final String insaneField; |
| final FieldInfos fieldInfos; |
| |
| InsaneReader(LeafReader in, String insaneField) { |
| super(in); |
| this.insaneField = insaneField; |
| ArrayList<FieldInfo> filteredInfos = new ArrayList<>(); |
| for (FieldInfo fi : in.getFieldInfos()) { |
| if (fi.name.equals(insaneField)) { |
| filteredInfos.add(new FieldInfo(fi.name, fi.number, fi.hasVectors(), fi.omitsNorms(), |
| fi.hasPayloads(), fi.getIndexOptions(), DocValuesType.NONE, -1, Collections.emptyMap())); |
| } else { |
| filteredInfos.add(fi); |
| } |
| } |
| fieldInfos = new FieldInfos(filteredInfos.toArray(new FieldInfo[filteredInfos.size()])); |
| } |
| |
| @Override |
| public NumericDocValues getNumericDocValues(String field) throws IOException { |
| if (insaneField.equals(field)) { |
| return null; |
| } else { |
| return in.getNumericDocValues(field); |
| } |
| } |
| |
| @Override |
| public BinaryDocValues getBinaryDocValues(String field) throws IOException { |
| if (insaneField.equals(field)) { |
| return null; |
| } else { |
| return in.getBinaryDocValues(field); |
| } |
| } |
| |
| @Override |
| public SortedDocValues getSortedDocValues(String field) throws IOException { |
| if (insaneField.equals(field)) { |
| return null; |
| } else { |
| return in.getSortedDocValues(field); |
| } |
| } |
| |
| @Override |
| public SortedSetDocValues getSortedSetDocValues(String field) throws IOException { |
| if (insaneField.equals(field)) { |
| return null; |
| } else { |
| return in.getSortedSetDocValues(field); |
| } |
| } |
| |
| @Override |
| public FieldInfos getFieldInfos() { |
| return fieldInfos; |
| } |
| |
| // important to override these, so fieldcaches are shared on what we wrap |
| |
| @Override |
| public Object getCoreCacheKey() { |
| return in.getCoreCacheKey(); |
| } |
| |
| @Override |
| public Object getCombinedCoreAndDeletesKey() { |
| return in.getCombinedCoreAndDeletesKey(); |
| } |
| } |
| } |