1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
|
//=============================================================================
// Copyright 2006-2010 Daniel W. Dyer
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
//=============================================================================
package org.uncommons.watchmaker.swing.evolutionmonitor;
import java.util.concurrent.atomic.AtomicInteger;
import javax.swing.BorderFactory;
import javax.swing.Box;
import javax.swing.BoxLayout;
import javax.swing.JLabel;
import javax.swing.SwingUtilities;
import org.uncommons.watchmaker.framework.PopulationData;
import org.uncommons.watchmaker.framework.islands.IslandEvolutionObserver;
/**
* Status bar component for the evolution monitor. Can also be used separately to
* provide basic status information without having to use the full evolution monitor.
* @author Daniel Dyer
*/
public class StatusBar extends Box implements IslandEvolutionObserver<Object>
{
private final JLabel generationsLabel = new JLabel("N/A", JLabel.RIGHT);
private final JLabel timeLabel = new JLabel("N/A", JLabel.RIGHT);
private final JLabel populationLabel = new JLabel("N/A", JLabel.RIGHT);
private final JLabel elitismLabel = new JLabel("N/A", JLabel.RIGHT);
private final AtomicInteger islandPopulationSize = new AtomicInteger(-1);
private long elapsedTime;
private long epochTime;
/**
* Creates a status bar configured for non-island evolution.
*/
public StatusBar()
{
this(false);
}
/**
* @param islands Whether the status bar should be configured for updates from
* {@link org.uncommons.watchmaker.framework.islands.IslandEvolution}. Set this
* parameter to false when using a standard {@link org.uncommons.watchmaker.framework.EvolutionEngine}
*/
public StatusBar(boolean islands)
{
super(BoxLayout.X_AXIS);
add(new JLabel("Population: "));
add(populationLabel);
add(createHorizontalStrut(15));
add(new JLabel("Elitism: "));
add(elitismLabel);
add(createHorizontalStrut(15));
add(new JLabel(islands ? "Epochs: " : "Generations: "));
add(generationsLabel);
add(createHorizontalStrut(15));
add(new JLabel("Elapsed Time: "));
add(timeLabel);
setBorder(BorderFactory.createEmptyBorder(0, 5, 0, 5));
// Set component names for easy look-up from tests.
populationLabel.setName("Population");
elitismLabel.setName("Elitism");
generationsLabel.setName("Generations");
timeLabel.setName("Time");
}
/**
* {@inheritDoc}
*/
public void populationUpdate(final PopulationData<?> populationData)
{
SwingUtilities.invokeLater(new Runnable()
{
public void run()
{
if (populationData.getGenerationNumber() == 0)
{
int islandSize = islandPopulationSize.get();
if (islandSize > 0)
{
int islandCount = populationData.getPopulationSize() / islandSize;
populationLabel.setText(islandCount + "x" + islandSize);
elitismLabel.setText(islandCount + "x" + populationData.getEliteCount());
}
else
{
populationLabel.setText(String.valueOf(populationData.getPopulationSize()));
elitismLabel.setText(String.valueOf(populationData.getEliteCount()));
}
}
generationsLabel.setText(String.valueOf(populationData.getGenerationNumber() + 1));
elapsedTime = populationData.getElapsedTime();
epochTime = 0;
timeLabel.setText(formatTime(elapsedTime));
}
});
}
/**
* {@inheritDoc}
*/
public void islandPopulationUpdate(int islandIndex,
final PopulationData<? extends Object> populationData)
{
islandPopulationSize.compareAndSet(-1, populationData.getPopulationSize());
SwingUtilities.invokeLater(new Runnable()
{
public void run()
{
// Only update the label if the time has advanced. Sometimes, due to threading
// variations, later updates have shorter elapsed times.
if (populationData.getElapsedTime() > epochTime)
{
epochTime = populationData.getElapsedTime();
timeLabel.setText(formatTime(elapsedTime + epochTime));
}
}
});
}
private String formatTime(long time)
{
long seconds = time / 1000;
long minutes = seconds / 60;
seconds %= 60;
long hours = minutes / 60;
minutes %= 60;
StringBuilder buffer = new StringBuilder();
if (hours < 10)
{
buffer.append('0');
}
buffer.append(hours);
buffer.append(':');
if (minutes < 10)
{
buffer.append('0');
}
buffer.append(minutes);
buffer.append(':');
if (seconds < 10)
{
buffer.append('0');
}
buffer.append(seconds);
return buffer.toString();
}
}
|
