/*
 * 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.spatial3d;

import org.apache.lucene.search.FieldComparator;
import org.apache.lucene.search.SortField;
import org.apache.lucene.spatial3d.geom.GeoDistanceShape;

Sorts by distance from an origin location.
/** * Sorts by distance from an origin location. */
final class Geo3DPointSortField extends SortField { final GeoDistanceShape distanceShape; Geo3DPointSortField(final String field, final GeoDistanceShape distanceShape) { super(field, SortField.Type.CUSTOM); if (field == null) { throw new IllegalArgumentException("field must not be null"); } if (distanceShape == null) { throw new IllegalArgumentException("distanceShape must not be null"); } this.distanceShape = distanceShape; setMissingValue(Double.POSITIVE_INFINITY); } @Override public FieldComparator<?> getComparator(int numHits, int sortPos) { return new Geo3DPointDistanceComparator(getField(), distanceShape, numHits); } @Override public Double getMissingValue() { return (Double) super.getMissingValue(); } @Override public void setMissingValue(Object missingValue) { if (Double.valueOf(Double.POSITIVE_INFINITY).equals(missingValue) == false) { throw new IllegalArgumentException("Missing value can only be Double.POSITIVE_INFINITY (missing values last), but got " + missingValue); } this.missingValue = missingValue; } @Override public int hashCode() { final int prime = 31; int result = super.hashCode(); long temp; temp = distanceShape.hashCode(); result = prime * result + (int) (temp ^ (temp >>> 32)); return result; } @Override public boolean equals(Object obj) { if (this == obj) return true; if (!super.equals(obj)) return false; if (getClass() != obj.getClass()) return false; final Geo3DPointSortField other = (Geo3DPointSortField) obj; return distanceShape.equals(other.distanceShape); } @Override public String toString() { StringBuilder builder = new StringBuilder(); builder.append("<distanceShape:"); builder.append('"'); builder.append(getField()); builder.append('"'); builder.append(" shape="); builder.append(distanceShape); if (Double.POSITIVE_INFINITY != getMissingValue()) { builder.append(" missingValue=").append(getMissingValue()); } builder.append('>'); return builder.toString(); } }