package org.opentrafficsim.kpi.sampling.data;
   
   import java.util.Arrays;
   
   import org.djutils.exceptions.Throw;
   import org.opentrafficsim.kpi.interfaces.GtuDataInterface;
   import org.opentrafficsim.kpi.sampling.SamplingException;
   
   /**
   * Class for unitless values.
   * <p>
   * Copyright (c) 2013-2019 Delft University of Technology, PO Box 5, 2600 AA, Delft, the Netherlands. All rights reserved. <br>
   * BSD-style license. See <a href="http://opentrafficsim.org/node/13">OpenTrafficSim License</a>.
   * <p>
   * @version $Revision$, $LastChangedDate$, by $Author$, initial version 23 mei 2018 <br>
   * @author <a href="http://www.tbm.tudelft.nl/averbraeck">Alexander Verbraeck</a>
   * @author <a href="http://www.tudelft.nl/pknoppers">Peter Knoppers</a>
   * @author <a href="http://www.transport.citg.tudelft.nl">Wouter Schakel</a>
   * @param <G> gtu data type
   */
  public abstract class ExtendedDataTypeNumber<G extends GtuDataInterface> extends ExtendedDataType<Float, float[], float[], G>
  {
  
      /**
       * Constructor.
       * @param id String; id
       */
      public ExtendedDataTypeNumber(final String id)
      {
          super(id);
      }
  
      /** {@inheritDoc} */
      @Override
      public float[] setValue(final float[] storage, final int index, final Float value)
      {
          float[] out;
          if (index == storage.length)
          {
              int cap = (index - 1) + ((index - 1) >> 1);
              out = Arrays.copyOf(storage, cap);
          }
          else
          {
              out = storage;
          }
          out[index] = value;
          return out;
      }
  
      /** {@inheritDoc} */
      @Override
      public Float getOutputValue(final float[] output, final int index) throws SamplingException
      {
          return output[index];
      }
  
      /** {@inheritDoc} */
      @Override
      public Float getStorageValue(final float[] storage, final int index) throws SamplingException
      {
          Throw.when(index < 0 || index >= storage.length, SamplingException.class, "Index %d out of range.", index);
          return storage[index];
      }
  
      /** {@inheritDoc} */
      @Override
      public float[] initializeStorage()
      {
          return new float[10];
      }
  
      /** {@inheritDoc} */
      @Override
      public float[] convert(final float[] storage, final int size)
      {
          return Arrays.copyOf(storage, size);
      }
  
      /** {@inheritDoc} */
      @Override
      public String formatValue(final String format, final Float value)
      {
          return String.format(format, value);
      }
  
  }