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1
10 package org.jgap.gp.function;
11
12 import org.jgap.*;
13 import org.jgap.gp.*;
14 import org.apache.commons.lang.builder.*;
15 import org.jgap.gp.impl.*;
16 import org.jgap.util.*;
17
18
27 public class SubProgram
28 extends CommandGene implements ICloneable {
29
30 private final static String  CVS_REVISION = "$Revision: 1.12 $";
31
32
35 private int m_subtrees;
36
37
40 private Class [] m_types;
41
42 public SubProgram(final GPConfiguration a_conf, Class [] a_types)
43 throws InvalidConfigurationException {
44 this(a_conf, a_types, 0, null);
45 }
46
47 public SubProgram(final GPConfiguration a_conf, Class [] a_types,
48 int a_subReturnType, int[] a_subChildTypes)
49 throws InvalidConfigurationException {
50 super(a_conf, a_types.length, a_types[a_types.length - 1], a_subReturnType,
51 a_subChildTypes);
52 if (a_types.length < 1) {
53 throw new IllegalArgumentException ("Number of subtrees must be >= 1");
54 }
55 m_types = a_types;
56 m_subtrees = a_types.length;
57 }
58
59 public String toString() {
60 String ret = "sub[";
61 for (int i = 1; i < m_subtrees; i++) {
62 ret += "&" + i + " --> ";
63 }
64 ret += "&" + m_subtrees + "]";
65 return ret;
66 }
67
68
74 public String getName() {
75 return "Sub program";
76 }
77
78 public int execute_int(ProgramChromosome c, int n, Object [] args) {
79 check(c);
80 int value = -1;
81 for (int i = 0; i < m_subtrees; i++) {
82 if (i < m_subtrees - 1) {
83 c.execute_void(n, i, args);
84 }
85 else {
86 value = c.execute_int(n, i, args);
87 }
88 }
93 return value;
94 }
95
96 public void execute_void(ProgramChromosome c, int n, Object [] args) {
97 check(c);
98 for (int i = 0; i < m_subtrees; i++) {
99 c.execute_void(n, i, args);
100 }
101 }
102
103 public long execute_long(ProgramChromosome c, int n, Object [] args) {
104 check(c);
105 long value = -1;
106 for (int i = 0; i < m_subtrees; i++) {
107 value = c.execute_long(n, i, args);
108 }
109 return value;
110 }
111
112 public float execute_float(ProgramChromosome c, int n, Object [] args) {
113 check(c);
114 float value = -1;
115 for (int i = 0; i < m_subtrees; i++) {
116 value = c.execute_float(n, i, args);
117 }
118 return value;
119 }
120
121 public double execute_double(ProgramChromosome c, int n, Object [] args) {
122 check(c);
123 double value = -1;
124 for (int i = 0; i < m_subtrees; i++) {
125 value = c.execute_double(n, i, args);
126 }
127 return value;
128 }
129
130 public Object execute_object(ProgramChromosome c, int n, Object [] args) {
131 check(c);
132 Object value = null;
133 for (int i = 0; i < m_subtrees; i++) {
134 value = c.execute_object(n, i, args);
135 }
136 return value;
137 }
138
139 public boolean isValid(ProgramChromosome a_program) {
140 return true;
141 }
142
143 public Class getChildType(IGPProgram a_ind, int a_chromNum) {
144 return m_types[a_chromNum];
145 }
146
147
156 public int compareTo(Object a_other) {
157 if (a_other == null) {
158 return 1;
159 }
160 else {
161 SubProgram other = (SubProgram) a_other;
162 return new CompareToBuilder()
163 .append(m_types, other.m_types)
164 .toComparison();
165 }
166 }
167
168
177 public boolean equals(Object a_other) {
178 if (a_other == null) {
179 return false;
180 }
181 else {
182 try {
183 SubProgram other = (SubProgram) a_other;
184 return new EqualsBuilder()
185 .append(m_types, other.m_types)
186 .isEquals();
187 } catch (ClassCastException cex) {
188 return false;
189 }
190 }
191 }
192
193
199 public Object clone() {
200 try {
201 int[] subChildTypes = getSubChildTypes();
202 if (subChildTypes != null) {
203 subChildTypes = (int[])subChildTypes.clone();
204 }
205 SubProgram result = new SubProgram(getGPConfiguration(), m_types,
206 getSubReturnType(), subChildTypes);
207 result.m_subtrees = m_subtrees;
208 result.m_types = (Class [])m_types.clone();
209 return result;
210 } catch (Throwable t) {
211 throw new CloneException(t);
212 }
213 }
214 }
215 |
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