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1   package org.opentrafficsim.xml.bindings;
2   
3   
4   import javax.xml.bind.annotation.adapters.XmlAdapter;
5   
6   import org.djutils.draw.point.Point3d;
7   import org.djutils.exceptions.Throw;
8   import org.djutils.logger.CategoryLogger;
9   
10  /**
11   * CoordinateAdapter converts between the XML String for a coordinate and a Point3d. Because the ots-xsd project is not
12   * dependent on ots-core, Point3d is chosen instead of OTSPoint3D to store the (x, y, z) information. The marshal function
13   * returns a 2D-coordinate in case the z-value is zero. <br>
14   * <br>
15   * Copyright (c) 2003-2022 Delft University of Technology, Jaffalaan 5, 2628 BX Delft, the Netherlands. All rights reserved. See
16   * for project information <a href="https://www.simulation.tudelft.nl/" target="_blank">www.simulation.tudelft.nl</a>. The
17   * source code and binary code of this software is proprietary information of Delft University of Technology.
18   * @author <a href="https://www.tudelft.nl/averbraeck" target="_blank">Alexander Verbraeck</a>
19   */
20  public class CoordinateAdapter extends XmlAdapter<String, Point3d>
21  {
22      /** {@inheritDoc} */
23      @Override
24      public Point3d unmarshal(final String field) throws IllegalArgumentException
25      {
26          try
27          {
28              String clean = field.replaceAll("\\s", "");
29              Throw.when(!clean.startsWith("("), IllegalArgumentException.class, "Coordinate must start with '(': " + field);
30              Throw.when(!clean.endsWith(")"), IllegalArgumentException.class, "Coordinate must end with ')': " + field);
31              clean = clean.substring(1, clean.length() - 1);
32              String[] digits = clean.split(",");
33              Throw.when(digits.length < 2, IllegalArgumentException.class, "Coordinate must have at least x and y: " + field);
34              Throw.when(digits.length > 3, IllegalArgumentException.class,
35                      "Coordinate must have at most 3 dimensions: " + field);
36  
37              double x = Double.parseDouble(digits[0]);
38              double y = Double.parseDouble(digits[1]);
39              double z = digits.length == 2 ? 0.0 : Double.parseDouble(digits[2]);
40              return new Point3d(x, y, z);
41          }
42          catch (Exception exception)
43          {
44              CategoryLogger.always().error(exception, "Problem parsing coordinate '" + field + "'");
45              throw new IllegalArgumentException("Error parsing coordinate" + field, exception);
46          }
47      }
48  
49      /** {@inheritDoc} */
50      @Override
51      public String marshal(final Point3d point) throws IllegalArgumentException
52      {
53          if (point.z == 0.0)
54              return "(" + point.x + ", " + point.y + ")";
55          return "(" + point.x + ", " + point.y + ", " + point.z + ")";
56      }
57  
58  }