1 package net.bmahe.genetics4j.core.chromosomes;
2
3 import java.util.Arrays;
4 import java.util.Objects;
5
6 import org.apache.commons.lang3.Validate;
7
8 public class DoubleChromosome implements Chromosome {
9
10 private final int size;
11 private final double minValue;
12 private final double maxValue;
13 private final double[] values;
14
15 public DoubleChromosome(final int _size, final double _minValue, final double _maxValue, final double[] _values) {
16 Validate.isTrue(_size > 0);
17 Validate.isTrue(_minValue <= _maxValue);
18 Validate.notNull(_values);
19 Validate.isTrue(_size == _values.length, "Provided size does not match the size of the content");
20
21 this.size = _size;
22 this.minValue = _minValue;
23 this.maxValue = _maxValue;
24 this.values = Arrays.copyOf(_values, _size);
25 }
26
27 @Override
28 public int getNumAlleles() {
29 return size;
30 }
31
32 public double getAllele(final int index) {
33 Validate.inclusiveBetween(0, size - 1, index);
34
35 return values[index];
36 }
37
38 public int getSize() {
39 return size;
40 }
41
42 public double getMinValue() {
43 return minValue;
44 }
45
46 public double getMaxValue() {
47 return maxValue;
48 }
49
50 public double[] getValues() {
51 return values;
52 }
53
54 @Override
55 public int hashCode() {
56 final int prime = 31;
57 int result = 1;
58 result = prime * result + Arrays.hashCode(values);
59 result = prime * result + Objects.hash(maxValue, minValue, size);
60 return result;
61 }
62
63 @Override
64 public boolean equals(Object obj) {
65 if (this == obj)
66 return true;
67 if (obj == null)
68 return false;
69 if (getClass() != obj.getClass())
70 return false;
71 DoubleChromosome other = (DoubleChromosome) obj;
72 return Double.doubleToLongBits(maxValue) == Double.doubleToLongBits(other.maxValue)
73 && Double.doubleToLongBits(minValue) == Double.doubleToLongBits(other.minValue) && size == other.size
74 && Arrays.equals(values, other.values);
75 }
76
77 @Override
78 public String toString() {
79 return "DoubleChromosome [size=" + size + ", minValue=" + minValue + ", maxValue=" + maxValue + ", values="
80 + Arrays.toString(values) + "]";
81 }
82 }