content: /*
   * 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<Point> exteriorRing;
    private final List<List<Point>> interiorRings;
  
    public DefaultPolygon(
        @NonNull Point p1, @NonNull Point p2, @NonNull Point p3, @NonNull Point... pn) {
      super(fromPoints(p1, p2, p3, pn));
      this.exteriorRing = ImmutableList.<Point>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<List<Point>> 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<Point> getExteriorRing() {
      return exteriorRing;
    }
  
    @NonNull
    @Override
    public List<List<Point>> 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));
      }
    }
  }
  