com.datastax.dse.driver.internal.core.data.geometry.DefaultPolygon Maven / Gradle / Ivy
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* 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 com.datastax.dse.driver.internal.core.data.geometry;
import com.datastax.dse.driver.api.core.data.geometry.Point;
import com.datastax.dse.driver.api.core.data.geometry.Polygon;
import com.datastax.oss.driver.shaded.guava.common.collect.ImmutableList;
import com.esri.core.geometry.Operator;
import com.esri.core.geometry.OperatorFactoryLocal;
import com.esri.core.geometry.OperatorSimplifyOGC;
import com.esri.core.geometry.ogc.OGCPolygon;
import edu.umd.cs.findbugs.annotations.NonNull;
import java.util.Collections;
import java.util.List;
import net.jcip.annotations.Immutable;
@Immutable
public class DefaultPolygon extends DefaultGeometry implements Polygon {
private static final long serialVersionUID = 3694196802962890314L;
private final List exteriorRing;
private final List> interiorRings;
public DefaultPolygon(
@NonNull Point p1, @NonNull Point p2, @NonNull Point p3, @NonNull Point... pn) {
super(fromPoints(p1, p2, p3, pn));
this.exteriorRing = ImmutableList.builder().add(p1).add(p2).add(p3).add(pn).build();
this.interiorRings = Collections.emptyList();
}
public DefaultPolygon(@NonNull OGCPolygon polygon) {
super(polygon);
if (polygon.isEmpty()) {
this.exteriorRing = ImmutableList.of();
} else {
this.exteriorRing = getPoints(polygon.exteriorRing());
}
ImmutableList.Builder> builder = ImmutableList.builder();
for (int i = 0; i < polygon.numInteriorRing(); i++) {
builder.add(getPoints(polygon.interiorRingN(i)));
}
this.interiorRings = builder.build();
}
@NonNull
@Override
public List getExteriorRing() {
return exteriorRing;
}
@NonNull
@Override
public List> getInteriorRings() {
return interiorRings;
}
private static OGCPolygon fromPoints(Point p1, Point p2, Point p3, Point... pn) {
com.esri.core.geometry.Polygon polygon = new com.esri.core.geometry.Polygon();
addPath(polygon, p1, p2, p3, pn);
return new OGCPolygon(simplify(polygon), DefaultGeometry.SPATIAL_REFERENCE_4326);
}
private static void addPath(
com.esri.core.geometry.Polygon polygon, Point p1, Point p2, Point p3, Point[] pn) {
polygon.startPath(toEsri(p1));
polygon.lineTo(toEsri(p2));
polygon.lineTo(toEsri(p3));
for (Point p : pn) {
polygon.lineTo(toEsri(p));
}
}
private static com.esri.core.geometry.Polygon simplify(com.esri.core.geometry.Polygon polygon) {
OperatorSimplifyOGC op =
(OperatorSimplifyOGC)
OperatorFactoryLocal.getInstance().getOperator(Operator.Type.SimplifyOGC);
return (com.esri.core.geometry.Polygon)
op.execute(polygon, DefaultGeometry.SPATIAL_REFERENCE_4326, true, null);
}
/**
* This object gets replaced by an internal proxy for serialization.
*
* @serialData a single byte array containing the Well-Known Binary representation.
*/
private Object writeReplace() {
return new WkbSerializationProxy(this.asWellKnownBinary());
}
public static class Builder implements Polygon.Builder {
private final com.esri.core.geometry.Polygon polygon = new com.esri.core.geometry.Polygon();
@NonNull
@Override
public Builder addRing(
@NonNull Point p1, @NonNull Point p2, @NonNull Point p3, @NonNull Point... pn) {
addPath(polygon, p1, p2, p3, pn);
return this;
}
/**
* Builds the polygon.
*
* @return the polygon.
*/
@NonNull
@Override
public Polygon build() {
return new DefaultPolygon(
new OGCPolygon(simplify(polygon), DefaultGeometry.SPATIAL_REFERENCE_4326));
}
}
}