| /* |
| * 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.document; |
| |
| import java.io.IOException; |
| |
| import org.apache.lucene.geo.GeoEncodingUtils; |
| import org.apache.lucene.geo.GeoUtils; |
| import org.apache.lucene.index.DocValues; |
| import org.apache.lucene.index.LeafReaderContext; |
| import org.apache.lucene.index.SortedNumericDocValues; |
| import org.apache.lucene.search.ConstantScoreScorer; |
| import org.apache.lucene.search.ConstantScoreWeight; |
| import org.apache.lucene.search.IndexSearcher; |
| import org.apache.lucene.search.Query; |
| import org.apache.lucene.search.QueryVisitor; |
| import org.apache.lucene.search.ScoreMode; |
| import org.apache.lucene.search.Scorer; |
| import org.apache.lucene.search.TwoPhaseIterator; |
| import org.apache.lucene.search.Weight; |
| |
| /** Distance query for {@link LatLonDocValuesField}. */ |
| final class LatLonDocValuesBoxQuery extends Query { |
| |
| private final String field; |
| private final int minLatitude, maxLatitude, minLongitude, maxLongitude; |
| private final boolean crossesDateline; |
| |
| LatLonDocValuesBoxQuery(String field, double minLatitude, double maxLatitude, double minLongitude, double maxLongitude) { |
| GeoUtils.checkLatitude(minLatitude); |
| GeoUtils.checkLatitude(maxLatitude); |
| GeoUtils.checkLongitude(minLongitude); |
| GeoUtils.checkLongitude(maxLongitude); |
| if (field == null) { |
| throw new IllegalArgumentException("field must not be null"); |
| } |
| this.field = field; |
| this.crossesDateline = minLongitude > maxLongitude; // make sure to compute this before rounding |
| this.minLatitude = GeoEncodingUtils.encodeLatitudeCeil(minLatitude); |
| this.maxLatitude = GeoEncodingUtils.encodeLatitude(maxLatitude); |
| this.minLongitude = GeoEncodingUtils.encodeLongitudeCeil(minLongitude); |
| this.maxLongitude = GeoEncodingUtils.encodeLongitude(maxLongitude); |
| } |
| |
| @Override |
| public String toString(String field) { |
| StringBuilder sb = new StringBuilder(); |
| if (!this.field.equals(field)) { |
| sb.append(this.field); |
| sb.append(':'); |
| } |
| sb.append("box(minLat=").append(GeoEncodingUtils.decodeLatitude(minLatitude)); |
| sb.append(", maxLat=").append(GeoEncodingUtils.decodeLatitude(maxLatitude)); |
| sb.append(", minLon=").append(GeoEncodingUtils.decodeLongitude(minLongitude)); |
| sb.append(", maxLon=").append(GeoEncodingUtils.decodeLongitude(maxLongitude)); |
| return sb.append(")").toString(); |
| } |
| |
| @Override |
| public boolean equals(Object obj) { |
| if (sameClassAs(obj) == false) { |
| return false; |
| } |
| LatLonDocValuesBoxQuery other = (LatLonDocValuesBoxQuery) obj; |
| return field.equals(other.field) && |
| crossesDateline == other.crossesDateline && |
| minLatitude == other.minLatitude && |
| maxLatitude == other.maxLatitude && |
| minLongitude == other.minLongitude && |
| maxLongitude == other.maxLongitude; |
| } |
| |
| @Override |
| public int hashCode() { |
| int h = classHash(); |
| h = 31 * h + field.hashCode(); |
| h = 31 * h + Boolean.hashCode(crossesDateline); |
| h = 31 * h + Integer.hashCode(minLatitude); |
| h = 31 * h + Integer.hashCode(maxLatitude); |
| h = 31 * h + Integer.hashCode(minLongitude); |
| h = 31 * h + Integer.hashCode(maxLongitude); |
| return h; |
| } |
| |
| @Override |
| public void visit(QueryVisitor visitor) { |
| if (visitor.acceptField(field)) { |
| visitor.visitLeaf(this); |
| } |
| } |
| |
| @Override |
| public Weight createWeight(IndexSearcher searcher, ScoreMode scoreMode, float boost) throws IOException { |
| return new ConstantScoreWeight(this, boost) { |
| @Override |
| public Scorer scorer(LeafReaderContext context) throws IOException { |
| final SortedNumericDocValues values = context.reader().getSortedNumericDocValues(field); |
| if (values == null) { |
| return null; |
| } |
| |
| final TwoPhaseIterator iterator = new TwoPhaseIterator(values) { |
| @Override |
| public boolean matches() throws IOException { |
| for (int i = 0, count = values.docValueCount(); i < count; ++i) { |
| final long value = values.nextValue(); |
| final int lat = (int) (value >>> 32); |
| if (lat < minLatitude || lat > maxLatitude) { |
| // not within latitude range |
| continue; |
| } |
| |
| final int lon = (int) (value & 0xFFFFFFFF); |
| if (crossesDateline) { |
| if (lon > maxLongitude && lon < minLongitude) { |
| // not within longitude range |
| continue; |
| } |
| } else { |
| if (lon < minLongitude || lon > maxLongitude) { |
| // not within longitude range |
| continue; |
| } |
| } |
| |
| return true; |
| } |
| return false; |
| } |
| |
| @Override |
| public float matchCost() { |
| return 5; // 5 comparisons |
| } |
| }; |
| return new ConstantScoreScorer(this, boost, scoreMode, iterator); |
| } |
| |
| @Override |
| public boolean isCacheable(LeafReaderContext ctx) { |
| return DocValues.isCacheable(ctx, field); |
| } |
| |
| }; |
| } |
| |
| } |