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1
24
25 package org.objectweb.cjdbc.scenario.tools.util;
26
27 import java.awt.GridLayout  ;
28 import java.awt.event.KeyEvent ;
29 import java.awt.event.KeyListener ;
30 import java.awt.event.WindowEvent ;
31 import java.awt.event.WindowListener ;
32
33 import javax.swing.JFrame ;
34 import javax.swing.JLabel ;
35 import javax.swing.JTextField ;
36
37
43 public class MemoryProfiler extends Thread
44 implements
45 WindowListener ,
46 KeyListener
47 {
48
49 boolean useFrame = false;
50 boolean quit = false;
51
52 JFrame frame;
53 JTextField freeMemory;
54 JTextField minMemory;
55 JTextField timeRunning;
56 long started;
57
58 String frees = "";
59 long free = 0;
60 long min = 0;
61 long timeout = 1000;
62 private long time;
63 private String stime;
64 private JTextField refreshRate;
65 private long avg;
66 private long tot;
67 private int count;
68
69 public void quit()
70 {
71 this.quit = true;
72 }
73
74
77 public void keyPressed(KeyEvent e)
78 {
79
81 }
82
83
86 public void keyReleased(KeyEvent e)
87 {
88
90 }
91
92
95 public void keyTyped(KeyEvent e)
96 {
97 String s = refreshRate.getText();
98 timeout = Long.parseLong(s) * 1000;
99 }
100
101
104 public void windowActivated(WindowEvent e)
105 {
106
108 }
109
110
113 public void windowClosed(WindowEvent e)
114 {
115 this.useFrame = false;
116
117 }
118
119
122 public void windowClosing(WindowEvent e)
123 {
124 this.useFrame = false;
125
126 }
127
128
131 public void windowDeactivated(WindowEvent e)
132 {
133
135 }
136
137
140 public void windowDeiconified(WindowEvent e)
141 {
142
144 }
145
146
149 public void windowIconified(WindowEvent e)
150 {
151
153 }
154
155
158 public void windowOpened(WindowEvent e)
159 {
160
162 }
163
164
167 public MemoryProfiler()
168 {
169 if (useFrame)
170 {
171 frame = new JFrame ("Values");
172 GridLayout gridLayout = new GridLayout (4, 2);
173 frame.getContentPane().setLayout(gridLayout);
174 freeMemory = new JTextField ();
175 freeMemory.setEditable(false);
176 minMemory = new JTextField ();
177 minMemory.setEditable(false);
178 timeRunning = new JTextField ();
179 timeRunning.setEditable(false);
180 refreshRate = new JTextField (String.valueOf(timeout / 1000));
181 refreshRate.addKeyListener(this);
182 frame.getContentPane().add(new JLabel ("Free Memory"));
183 frame.getContentPane().add(freeMemory);
184 frame.getContentPane().add(new JLabel ("Min Free Mem"));
185 frame.getContentPane().add(minMemory);
186 frame.getContentPane().add(new JLabel ("Time Running"));
187 frame.getContentPane().add(timeRunning);
188 frame.getContentPane().add(new JLabel ("Refresh Rate (in sec)"));
189 frame.getContentPane().add(refreshRate);
190 frame.setSize(200, 100);
191 frame.pack();
192 frame.validate();
193 frame.setVisible(true);
194 frame.addWindowListener(this);
195 }
196 }
197
198 public void run()
199 {
200 started = System.currentTimeMillis();
201 while (!quit)
202 {
203 synchronized (this)
204 {
205 try
206 {
207 wait(timeout);
208 }
209 catch (InterruptedException e)
210 {
211 e.printStackTrace();
212 }
213 updateMemoryValue();
214 }
215 }
216 }
217
218 private void updateMemoryValue()
219 {
220 free = (Runtime.getRuntime().freeMemory() / 1024);
221 tot += free;
222 count += 1;
223 time = System.currentTimeMillis() - started;
224 stime = String.valueOf(time / 1000);
225 frees = String.valueOf(free);
226 avg = tot / count;
227 if (min == 0 || min > free)
228 min = free;
229
230 if (useFrame)
231 {
232 freeMemory.setText(frees);
233 minMemory.setText(String.valueOf(min));
234 timeRunning.setText(stime);
235 frame.getContentPane().repaint();
236 }
237 else
238 System.out.println("Memory: FREE " + free + " ko, MIN " + min
239 + " ko, AVG " + avg + ". Running time is:" + stime + " s.");
240 }
241
242 } |
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