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.asterix.dataflow.data.nontagged.serde;
  
  import java.io.DataInput;
  import java.io.DataOutput;
  import java.io.IOException;
  
  import org.apache.asterix.common.exceptions.ErrorCode;
  import org.apache.asterix.common.exceptions.RuntimeDataException;
  import org.apache.asterix.dataflow.data.nontagged.Coordinate;
  import org.apache.asterix.om.base.APoint;
  import org.apache.asterix.om.base.APolygon;
  import org.apache.asterix.om.types.ATypeTag;
  import org.apache.hyracks.api.dataflow.value.ISerializerDeserializer;
  import org.apache.hyracks.api.exceptions.HyracksDataException;
  import org.apache.hyracks.dataflow.common.data.marshalling.ShortSerializerDeserializer;
  
  public class APolygonSerializerDeserializer implements ISerializerDeserializer<APolygon> {
  
      private static final long serialVersionUID = 1L;
  
      public static final APolygonSerializerDeserializer INSTANCE = new APolygonSerializerDeserializer();
  
      private APolygonSerializerDeserializer() {
      }
  
      @Override
      public APolygon deserialize(DataInput in) throws HyracksDataException {
          short numberOfPoints = ShortSerializerDeserializer.read(in);
          APoint[] points = new APoint[numberOfPoints];
          for (int i = 0; i < numberOfPoints; i++) {
              points[i] = APointSerializerDeserializer.read(in);
          }
          return new APolygon(points);
      }
  
      @Override
      public void serialize(APolygon instance, DataOutput out) throws HyracksDataException {
          short n = (short) instance.getNumberOfPoints();
          ShortSerializerDeserializer.write(n, out);
          for (int i = 0; i < n; i++) {
              APointSerializerDeserializer.write(instance.getPoints()[i], out);
          }
      }
  
      public static int getNumberOfPointsOffset() throws HyracksDataException {
          return 0;
      }
  
      public static int getCoordinateOffset(int pointId, Coordinate coordinate) throws HyracksDataException {
          switch (coordinate) {
              case X:
                  return 2 + (pointId * 16);
              case Y:
                  return 10 + (pointId * 16);
              default:
                  throw new RuntimeDataException(ErrorCode.POLYGON_INVALID_COORDINATE);
          }
      }
  
      public static void parse(String polygon, DataOutput out) throws HyracksDataException {
          try {
              String[] points = polygon.split(" ");
              if (points.length < 3) {
                  throw new RuntimeDataException(ErrorCode.POLYGON_3_POINTS);
              }
              out.writeByte(ATypeTag.POLYGON.serialize());
              out.writeShort(points.length);
              for (int i = 0; i < points.length; i++) {
                  final String[] split = points[i].split(",");
                  APointSerializerDeserializer.serialize(Double.parseDouble(split[0]), Double.parseDouble(split[1]), out);
              }
          } catch (IOException e) {
              throw new RuntimeDataException(ErrorCode.POLYGON_INVALID, e, polygon);
          }
      }
  }
  