package org.djutils.serialization.serializers;
   
   import org.djunits.unit.Unit;
   import org.djunits.value.vdouble.scalar.base.DoubleScalar;
   import org.djutils.serialization.EndianUtil;
   import org.djutils.serialization.FieldTypes;
   import org.djutils.serialization.SerializationException;
   
   /**
   * (De)serializes a DJUNITS DoubleScalar.
   * <p>
   * Copyright (c) 2019-2024 Delft University of Technology, PO Box 5, 2600 AA, Delft, the Netherlands. All rights reserved. <br>
   * BSD-style license. See <a href="https://djunits.org/docs/license.html">DJUNITS License</a>.
   * </p>
   * @author <a href="https://www.tudelft.nl/averbraeck" target="_blank">Alexander Verbraeck</a>
   * @param <U> the unit type
   * @param <S> the scalar type
   */
  public class DoubleScalarSerializer<U extends Unit<U>, S extends DoubleScalar<U, S>>
          extends ObjectWithUnitSerializer<U, S>
  {
      /** */
      public DoubleScalarSerializer()
      {
          super(FieldTypes.DOUBLE_64_UNIT, "Djunits_DoubleScalar");
      }
  
      @Override
      public int size(final S ads) throws SerializationException
      {
          return 2 + 8;
      }
  
      @Override
      public void serialize(final S ads, final byte[] buffer, final Pointer pointer, final EndianUtil endianUtil)
              throws SerializationException
      {
          encodeUnit(ads.getDisplayUnit(), buffer, pointer, endianUtil);
          double v = ads.getSI();
          endianUtil.encodeDouble(v, buffer, pointer.getAndIncrement(8));
      }
  
      @Override
      public S deSerialize(final byte[] buffer, final Pointer pointer, final EndianUtil endianUtil) throws SerializationException
      {
          U unit = getUnit(buffer, pointer, endianUtil);
          S afd = DoubleScalar.instantiateAnonymous(endianUtil.decodeDouble(buffer, pointer.getAndIncrement(8)),
                  unit.getStandardUnit());
          afd.setDisplayUnit(unit);
          return afd;
      }
  }