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 org.apache.calcite.runtime;
  
  import org.locationtech.jts.geom.Coordinate;
  import org.locationtech.jts.geom.Geometry;
  import org.locationtech.jts.geom.util.GeometryEditor;
  
  /**
   * Geometry editor operation that removes a point to a geometry.
   */
  public class RemovePointOperation extends GeometryEditor.CoordinateOperation {
  
    private final int index;
  
    public RemovePointOperation(int index) {
      this.index = index;
    }
  
    @Override public Coordinate[] edit(Coordinate[] coordinates, Geometry geometry) {
      if (index < 0 || index > coordinates.length - 1) {
        throw new IllegalArgumentException("Invalid index: " + index);
      }
      Coordinate[] newCoordinates = new Coordinate[coordinates.length - 1];
      for (int i = 0; i < index; i++) {
        newCoordinates[i] = (Coordinate) coordinates[i].clone();
      }
      for (int i = index + 1; i < coordinates.length; i++) {
        newCoordinates[i - 1] = (Coordinate) coordinates[i].clone();
      }
      return newCoordinates;
    }
  }
  