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1   package org.djunits.value.vfloat.vector;
2   
3   import java.util.stream.IntStream;
4   
5   import org.djunits.value.StorageType;
6   import org.djunits.value.ValueException;
7   import org.djunits.value.vfloat.FloatFunction;
8   
9   /**
10   * Stores dense data for a FloatVector and carries out basic operations.
11   * <p>
12   * Copyright (c) 2013-2019 Delft University of Technology, PO Box 5, 2600 AA, Delft, the Netherlands. All rights reserved. <br>
13   * BSD-style license. See <a href="http://opentrafficsim.org/docs/license.html">OpenTrafficSim License</a>.
14   * </p>
15   * $LastChangedDate: 2015-07-24 02:58:59 +0200 (Fri, 24 Jul 2015) $, @version $Revision: 1147 $, by $Author: averbraeck $,
16   * initial version Oct 3, 2015 <br>
17   * @author <a href="http://www.tbm.tudelft.nl/averbraeck">Alexander Verbraeck</a>
18   * @author <a href="http://www.tudelft.nl/pknoppers">Peter Knoppers</a>
19   */
20  public class FloatVectorDataDense extends FloatVectorData
21  {
22      /** */
23      private static final long serialVersionUID = 1L;
24  
25      /**
26       * Create a vector with dense data.
27       * @param vectorSI float[]; the data to store
28       */
29      public FloatVectorDataDense(final float[] vectorSI)
30      {
31          super(StorageType.DENSE);
32          this.vectorSI = new float[vectorSI.length];
33          System.arraycopy(vectorSI, 0, this.vectorSI, 0, vectorSI.length);
34      }
35  
36      /**
37       * @param floatFunction FloatFunction; the function to apply on the (mutable) data elements
38       */
39      public final void assign(final FloatFunction floatFunction)
40      {
41          IntStream.range(0, size()).parallel().forEach(i -> this.vectorSI[i] = floatFunction.apply(this.vectorSI[i]));
42      }
43  
44      /** {@inheritDoc} */
45      @Override
46      public final FloatVectorDataSparse toSparse()
47      {
48          return FloatVectorDataSparse.instantiate(this.vectorSI);
49      }
50  
51      /** {@inheritDoc} */
52      @Override
53      public final int size()
54      {
55          return this.vectorSI.length;
56      }
57  
58      /** {@inheritDoc} */
59      @Override
60      public final float getSI(final int index)
61      {
62          return this.vectorSI[index];
63      }
64  
65      /** {@inheritDoc} */
66      @Override
67      public final void setSI(final int index, final float valueSI)
68      {
69          this.vectorSI[index] = valueSI;
70      }
71  
72      /** {@inheritDoc} */
73      @Override
74      public final float[] getDenseVectorSI()
75      {
76          return this.vectorSI.clone();
77      }
78  
79      /** {@inheritDoc} */
80      @Override
81      public final FloatVectorDataDense copy()
82      {
83          float[] vCopy = new float[this.vectorSI.length];
84          System.arraycopy(this.vectorSI, 0, vCopy, 0, this.vectorSI.length);
85          return new FloatVectorDataDense(vCopy);
86      }
87  
88      /** {@inheritDoc} */
89      @Override
90      public final void incrementBy(final FloatVectorData right) throws ValueException
91      {
92          IntStream.range(0, size()).parallel().forEach(i -> this.vectorSI[i] += right.getSI(i));
93      }
94  
95      /** {@inheritDoc} */
96      @Override
97      public final void decrementBy(final FloatVectorData right) throws ValueException
98      {
99          IntStream.range(0, size()).parallel().forEach(i -> this.vectorSI[i] -= right.getSI(i));
100     }
101 
102     /** {@inheritDoc} */
103     @Override
104     public final void multiplyBy(final FloatVectorData right) throws ValueException
105     {
106         IntStream.range(0, size()).parallel().forEach(i -> this.vectorSI[i] *= right.getSI(i));
107     }
108 
109     /** {@inheritDoc} */
110     @Override
111     public final void divideBy(final FloatVectorData right) throws ValueException
112     {
113         IntStream.range(0, size()).parallel().forEach(i -> this.vectorSI[i] /= right.getSI(i));
114     }
115 }