| /* |
| * 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.solr.schema; |
| |
| import java.nio.ByteBuffer; |
| import java.util.ArrayList; |
| import java.util.Collections; |
| import java.util.List; |
| |
| import org.apache.lucene.document.SortedDocValuesField; |
| import org.apache.lucene.document.SortedSetDocValuesField; |
| import org.apache.lucene.index.IndexableField; |
| import org.apache.lucene.search.FieldComparator; |
| import org.apache.lucene.search.FieldComparatorSource; |
| import org.apache.lucene.search.SortField; |
| import org.apache.lucene.util.BytesRef; |
| |
| /** |
| * Custom field representing a {@link BinaryField} that's sortable. |
| */ |
| public class SortableBinaryField extends BinaryField { |
| |
| @Override |
| protected void checkSupportsDocValues() { // we support DocValues |
| } |
| |
| @Override |
| public List<IndexableField> createFields(SchemaField field, Object value) { |
| if (field.hasDocValues()) { |
| List<IndexableField> fields = new ArrayList<>(); |
| IndexableField storedField = createField(field, value); |
| fields.add(storedField); |
| ByteBuffer byteBuffer = toObject(storedField); |
| BytesRef bytes = new BytesRef |
| (byteBuffer.array(), byteBuffer.arrayOffset() + byteBuffer.position(), byteBuffer.remaining()); |
| if (field.multiValued()) { |
| fields.add(new SortedSetDocValuesField(field.getName(), bytes)); |
| } else { |
| fields.add(new SortedDocValuesField(field.getName(), bytes)); |
| } |
| return fields; |
| } else { |
| return Collections.singletonList(createField(field, value)); |
| } |
| } |
| |
| @Override |
| public SortField getSortField(final SchemaField field, final boolean reverse) { |
| field.checkSortability(); |
| return new BinarySortField(field.getName(), reverse); |
| } |
| |
| private static class BinarySortField extends SortField { |
| public BinarySortField(final String field, final boolean reverse) { |
| super(field, new FieldComparatorSource() { |
| @Override |
| public FieldComparator.TermOrdValComparator newComparator |
| (final String fieldname, final int numHits, final int sortPos, final boolean reversed) { |
| return new FieldComparator.TermOrdValComparator(numHits, fieldname); |
| }}, reverse); |
| } |
| } |
| |
| @Override |
| public Object marshalSortValue(Object value) { |
| return marshalBase64SortValue(value); |
| } |
| |
| @Override |
| public Object unmarshalSortValue(Object value) { |
| return unmarshalBase64SortValue(value); |
| } |
| } |