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/*
* 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.
*/
package org.elasticsearch.common.geo.builders;
import org.locationtech.spatial4j.shape.Shape;
import org.elasticsearch.ElasticsearchException;
import org.elasticsearch.common.geo.XShapeCollection;
import org.elasticsearch.common.io.stream.StreamInput;
import org.elasticsearch.common.io.stream.StreamOutput;
import org.elasticsearch.common.xcontent.XContentBuilder;
import java.io.IOException;
import java.util.ArrayList;
import java.util.List;
import java.util.Objects;
public class GeometryCollectionBuilder extends ShapeBuilder {
public static final GeoShapeType TYPE = GeoShapeType.GEOMETRYCOLLECTION;
public static final GeometryCollectionBuilder PROTOTYPE = new GeometryCollectionBuilder();
protected final ArrayList<ShapeBuilder> shapes = new ArrayList<>();
public GeometryCollectionBuilder shape(ShapeBuilder shape) {
this.shapes.add(shape);
return this;
}
public GeometryCollectionBuilder point(PointBuilder point) {
this.shapes.add(point);
return this;
}
public GeometryCollectionBuilder multiPoint(MultiPointBuilder multiPoint) {
this.shapes.add(multiPoint);
return this;
}
public GeometryCollectionBuilder line(LineStringBuilder line) {
this.shapes.add(line);
return this;
}
public GeometryCollectionBuilder multiLine(MultiLineStringBuilder multiLine) {
this.shapes.add(multiLine);
return this;
}
public GeometryCollectionBuilder polygon(PolygonBuilder polygon) {
this.shapes.add(polygon);
return this;
}
public GeometryCollectionBuilder multiPolygon(MultiPolygonBuilder multiPolygon) {
this.shapes.add(multiPolygon);
return this;
}
public GeometryCollectionBuilder envelope(EnvelopeBuilder envelope) {
this.shapes.add(envelope);
return this;
}
public GeometryCollectionBuilder circle(CircleBuilder circle) {
this.shapes.add(circle);
return this;
}
public ShapeBuilder getShapeAt(int i) {
if (i >= this.shapes.size() || i < 0) {
throw new ElasticsearchException("GeometryCollection contains " + this.shapes.size() + " shapes. + " +
"No shape found at index " + i);
}
return this.shapes.get(i);
}
public int numShapes() {
return this.shapes.size();
}
@Override
public XContentBuilder toXContent(XContentBuilder builder, Params params) throws IOException {
builder.startObject();
builder.field(FIELD_TYPE, TYPE.shapeName());
builder.startArray(FIELD_GEOMETRIES);
for (ShapeBuilder shape : shapes) {
shape.toXContent(builder, params);
}
builder.endArray();
return builder.endObject();
}
@Override
public GeoShapeType type() {
return TYPE;
}
@Override
public Shape build() {
List<Shape> shapes = new ArrayList<>(this.shapes.size());
for (ShapeBuilder shape : this.shapes) {
shapes.add(shape.build());
}
if (shapes.size() == 1)
return shapes.get(0);
else
return new XShapeCollection<>(shapes, SPATIAL_CONTEXT);
//note: ShapeCollection is probably faster than a Multi* geom.
}
@Override
public int hashCode() {
return Objects.hash(shapes);
}
@Override
public boolean equals(Object obj) {
if (this == obj) {
return true;
}
if (obj == null || getClass() != obj.getClass()) {
return false;
}
GeometryCollectionBuilder other = (GeometryCollectionBuilder) obj;
return Objects.equals(shapes, other.shapes);
}
@Override
public void writeTo(StreamOutput out) throws IOException {
out.writeVInt(shapes.size());
for (ShapeBuilder shape : shapes) {
out.writeShape(shape);
}
}
@Override
public GeometryCollectionBuilder readFrom(StreamInput in) throws IOException {
GeometryCollectionBuilder geometryCollectionBuilder = new GeometryCollectionBuilder();
int shapes = in.readVInt();
for (int i = 0; i < shapes; i++) {
geometryCollectionBuilder.shape(in.readShape());
}
return geometryCollectionBuilder;
}
}
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