org.opensearch.common.geo.builders.MultiPointBuilder Maven / Gradle / Ivy
/*
* SPDX-License-Identifier: Apache-2.0
*
* The OpenSearch Contributors require contributions made to
* this file be licensed under the Apache-2.0 license or a
* compatible open source license.
*/
/*
* Licensed to Elasticsearch under one or more contributor
* license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright
* ownership. Elasticsearch 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.
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/*
* Modifications Copyright OpenSearch Contributors. See
* GitHub history for details.
*/
package org.opensearch.common.geo.builders;
import org.opensearch.common.geo.GeoShapeType;
import org.opensearch.common.geo.XShapeCollection;
import org.opensearch.common.geo.parsers.ShapeParser;
import org.opensearch.common.io.stream.StreamInput;
import org.opensearch.common.xcontent.XContentBuilder;
import org.opensearch.geometry.MultiPoint;
import org.locationtech.jts.geom.Coordinate;
import org.locationtech.spatial4j.shape.Point;
import java.io.IOException;
import java.util.ArrayList;
import java.util.List;
import java.util.stream.Collectors;
public class MultiPointBuilder extends ShapeBuilder, MultiPoint, MultiPointBuilder> {
public static final GeoShapeType TYPE = GeoShapeType.MULTIPOINT;
/**
* Create a new {@link MultiPointBuilder}.
* @param coordinates needs at least two coordinates to be valid, otherwise will throw an exception
*/
public MultiPointBuilder(List coordinates) {
super(coordinates);
}
/**
* Creates a new empty MultiPoint builder
*/
public MultiPointBuilder() {
super();
}
/**
* Read from a stream.
*/
public MultiPointBuilder(StreamInput in) throws IOException {
super(in);
}
@Override
public XContentBuilder toXContent(XContentBuilder builder, Params params) throws IOException {
builder.startObject();
builder.field(ShapeParser.FIELD_TYPE.getPreferredName(), TYPE.shapeName());
builder.field(ShapeParser.FIELD_COORDINATES.getPreferredName());
super.coordinatesToXcontent(builder, false);
builder.endObject();
return builder;
}
@Override
public XShapeCollection buildS4J() {
// Could wrap JtsGeometry but probably slower due to conversions to/from JTS in relate()
// MultiPoint geometry = FACTORY.createMultiPoint(points.toArray(new Coordinate[points.size()]));
List shapes = new ArrayList<>(coordinates.size());
for (Coordinate coord : coordinates) {
shapes.add(SPATIAL_CONTEXT.makePoint(coord.x, coord.y));
}
XShapeCollection multiPoints = new XShapeCollection<>(shapes, SPATIAL_CONTEXT);
multiPoints.setPointsOnly(true);
return multiPoints;
}
@Override
public MultiPoint buildGeometry() {
if (coordinates.isEmpty()) {
return MultiPoint.EMPTY;
}
return new MultiPoint(
coordinates.stream().map(coord -> new org.opensearch.geometry.Point(coord.x, coord.y)).collect(Collectors.toList())
);
}
@Override
public GeoShapeType type() {
return TYPE;
}
@Override
public int numDimensions() {
if (coordinates == null || coordinates.isEmpty()) {
throw new IllegalStateException("unable to get number of dimensions, " + "LineString has not yet been initialized");
}
return Double.isNaN(coordinates.get(0).z) ? 2 : 3;
}
}