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1   package org.opentrafficsim.xml.bindings;
2   
3   import javax.xml.bind.annotation.adapters.XmlAdapter;
4   
5   import org.djunits.value.vdouble.scalar.base.DoubleScalarInterface;
6   import org.djutils.exceptions.Throw;
7   
8   /**
9    * UnitAdapter is the generic class for all Unit-based XML-adapters.
10   * <p>
11   * Copyright (c) 2019-2020 Delft University of Technology, PO Box 5, 2600 AA, Delft, the Netherlands. All rights reserved. <br>
12   * BSD-style license. See <a href="https://djunits.org/docs/license.html">DJUNITS License</a>.
13   * <p>
14   * @author <a href="https://www.tudelft.nl/averbraeck" target="_blank">Alexander Verbraeck</a>
15   */
16  public abstract class UnitAdapter<S extends DoubleScalarInterface<?, S>> extends XmlAdapter<String, S>
17  {
18      /** {@inheritDoc} */
19      @Override
20      public String marshal(final S scalar)
21      {
22          Throw.whenNull(scalar, "Marshalling scalar with unit: argument contains null value");
23          return scalar.getInUnit() + " " + scalar.getDisplayUnit().getDefaultTextualAbbreviation();
24      }
25  
26  }