mirror of
https://github.com/openjdk/jdk.git
synced 2026-03-13 01:13:10 +00:00
368 lines
12 KiB
Java
368 lines
12 KiB
Java
/*
|
|
*
|
|
* Copyright (c) 2007, 2011, Oracle and/or its affiliates. All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
*
|
|
* - Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
*
|
|
* - Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
*
|
|
* - Neither the name of Oracle nor the names of its
|
|
* contributors may be used to endorse or promote products derived
|
|
* from this software without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
|
|
* IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
|
|
* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
|
|
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
|
|
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
|
|
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
|
|
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
|
|
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
|
|
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
|
|
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
|
|
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|
*/
|
|
package java2d;
|
|
|
|
|
|
import static java.awt.Color.BLACK;
|
|
import static java.awt.Color.GREEN;
|
|
import static java.awt.Color.YELLOW;
|
|
import java.awt.BorderLayout;
|
|
import java.awt.Color;
|
|
import java.awt.Dimension;
|
|
import java.awt.Font;
|
|
import java.awt.FontMetrics;
|
|
import java.awt.Graphics;
|
|
import java.awt.Graphics2D;
|
|
import java.awt.Rectangle;
|
|
import java.awt.event.MouseAdapter;
|
|
import java.awt.event.MouseEvent;
|
|
import java.awt.event.WindowAdapter;
|
|
import java.awt.event.WindowEvent;
|
|
import java.awt.event.WindowListener;
|
|
import java.awt.geom.Line2D;
|
|
import java.awt.geom.Rectangle2D;
|
|
import java.awt.image.BufferedImage;
|
|
import java.util.Date;
|
|
import javax.swing.JCheckBox;
|
|
import javax.swing.JFrame;
|
|
import javax.swing.JLabel;
|
|
import javax.swing.JPanel;
|
|
import javax.swing.JTextField;
|
|
import javax.swing.border.EtchedBorder;
|
|
import javax.swing.border.TitledBorder;
|
|
|
|
|
|
/**
|
|
* Tracks Memory allocated & used, displayed in graph form.
|
|
*/
|
|
@SuppressWarnings("serial")
|
|
public class MemoryMonitor extends JPanel {
|
|
|
|
private final JCheckBox dateStampCB = new JCheckBox("Output Date Stamp");
|
|
public Surface surf;
|
|
JPanel controls;
|
|
boolean doControls;
|
|
JTextField tf;
|
|
|
|
public MemoryMonitor() {
|
|
setLayout(new BorderLayout());
|
|
setBorder(new TitledBorder(new EtchedBorder(), "Memory Monitor"));
|
|
add(surf = new Surface());
|
|
controls = new JPanel();
|
|
controls.setPreferredSize(new Dimension(135, 80));
|
|
Font font = new Font(Font.SERIF, Font.PLAIN, 10);
|
|
JLabel label = new JLabel("Sample Rate");
|
|
label.setFont(font);
|
|
label.setForeground(BLACK);
|
|
controls.add(label);
|
|
tf = new JTextField("1000");
|
|
tf.setPreferredSize(new Dimension(45, 20));
|
|
controls.add(tf);
|
|
controls.add(label = new JLabel("ms"));
|
|
label.setFont(font);
|
|
label.setForeground(BLACK);
|
|
controls.add(dateStampCB);
|
|
dateStampCB.setFont(font);
|
|
addMouseListener(new MouseAdapter() {
|
|
|
|
@Override
|
|
public void mouseClicked(MouseEvent e) {
|
|
removeAll();
|
|
if ((doControls = !doControls)) {
|
|
surf.stop();
|
|
add(controls);
|
|
} else {
|
|
try {
|
|
surf.sleepAmount = Long.parseLong(tf.getText().trim());
|
|
} catch (Exception ex) {
|
|
}
|
|
surf.start();
|
|
add(surf);
|
|
}
|
|
revalidate();
|
|
repaint();
|
|
}
|
|
});
|
|
}
|
|
|
|
|
|
public class Surface extends JPanel implements Runnable {
|
|
|
|
public Thread thread;
|
|
public long sleepAmount = 1000;
|
|
private int w, h;
|
|
private BufferedImage bimg;
|
|
private Graphics2D big;
|
|
private Font font = new Font(Font.SERIF, Font.PLAIN, 11);
|
|
private Runtime r = Runtime.getRuntime();
|
|
private int columnInc;
|
|
private int pts[];
|
|
private int ptNum;
|
|
private int ascent, descent;
|
|
private Rectangle graphOutlineRect = new Rectangle();
|
|
private Rectangle2D mfRect = new Rectangle2D.Float();
|
|
private Rectangle2D muRect = new Rectangle2D.Float();
|
|
private Line2D graphLine = new Line2D.Float();
|
|
private Color graphColor = new Color(46, 139, 87);
|
|
private Color mfColor = new Color(0, 100, 0);
|
|
private String usedStr;
|
|
|
|
public Surface() {
|
|
setBackground(BLACK);
|
|
addMouseListener(new MouseAdapter() {
|
|
|
|
@Override
|
|
public void mouseClicked(MouseEvent e) {
|
|
if (thread == null) {
|
|
start();
|
|
} else {
|
|
stop();
|
|
}
|
|
}
|
|
});
|
|
}
|
|
|
|
@Override
|
|
public Dimension getMinimumSize() {
|
|
return getPreferredSize();
|
|
}
|
|
|
|
@Override
|
|
public Dimension getMaximumSize() {
|
|
return getPreferredSize();
|
|
}
|
|
|
|
@Override
|
|
public Dimension getPreferredSize() {
|
|
return new Dimension(135, 80);
|
|
}
|
|
|
|
@Override
|
|
public void paint(Graphics g) {
|
|
|
|
if (big == null) {
|
|
return;
|
|
}
|
|
|
|
big.setBackground(getBackground());
|
|
big.clearRect(0, 0, w, h);
|
|
|
|
float freeMemory = r.freeMemory();
|
|
float totalMemory = r.totalMemory();
|
|
|
|
// .. Draw allocated and used strings ..
|
|
big.setColor(GREEN);
|
|
big.drawString(String.valueOf((int) totalMemory / 1024)
|
|
+ "K allocated", 4.0f, ascent + 0.5f);
|
|
usedStr = String.valueOf(((int) (totalMemory - freeMemory)) / 1024)
|
|
+ "K used";
|
|
big.drawString(usedStr, 4, h - descent);
|
|
|
|
// Calculate remaining size
|
|
float ssH = ascent + descent;
|
|
float remainingHeight = (h - (ssH * 2) - 0.5f);
|
|
float blockHeight = remainingHeight / 10;
|
|
float blockWidth = 20.0f;
|
|
|
|
// .. Memory Free ..
|
|
big.setColor(mfColor);
|
|
int MemUsage = (int) ((freeMemory / totalMemory) * 10);
|
|
int i = 0;
|
|
for (; i < MemUsage; i++) {
|
|
mfRect.setRect(5, ssH + i * blockHeight,
|
|
blockWidth, blockHeight - 1);
|
|
big.fill(mfRect);
|
|
}
|
|
|
|
// .. Memory Used ..
|
|
big.setColor(GREEN);
|
|
for (; i < 10; i++) {
|
|
muRect.setRect(5, ssH + i * blockHeight,
|
|
blockWidth, blockHeight - 1);
|
|
big.fill(muRect);
|
|
}
|
|
|
|
// .. Draw History Graph ..
|
|
big.setColor(graphColor);
|
|
int graphX = 30;
|
|
int graphY = (int) ssH;
|
|
int graphW = w - graphX - 5;
|
|
int graphH = (int) remainingHeight;
|
|
graphOutlineRect.setRect(graphX, graphY, graphW, graphH);
|
|
big.draw(graphOutlineRect);
|
|
|
|
int graphRow = graphH / 10;
|
|
|
|
// .. Draw row ..
|
|
for (int j = graphY; j <= graphH + graphY; j += graphRow) {
|
|
graphLine.setLine(graphX, j, graphX + graphW, j);
|
|
big.draw(graphLine);
|
|
}
|
|
|
|
// .. Draw animated column movement ..
|
|
int graphColumn = graphW / 15;
|
|
|
|
if (columnInc == 0) {
|
|
columnInc = graphColumn;
|
|
}
|
|
|
|
for (int j = graphX + columnInc; j < graphW + graphX; j +=
|
|
graphColumn) {
|
|
graphLine.setLine(j, graphY, j, graphY + graphH);
|
|
big.draw(graphLine);
|
|
}
|
|
|
|
--columnInc;
|
|
|
|
if (pts == null) {
|
|
pts = new int[graphW];
|
|
ptNum = 0;
|
|
} else if (pts.length != graphW) {
|
|
int tmp[] = null;
|
|
if (ptNum < graphW) {
|
|
tmp = new int[ptNum];
|
|
System.arraycopy(pts, 0, tmp, 0, tmp.length);
|
|
} else {
|
|
tmp = new int[graphW];
|
|
System.arraycopy(pts, pts.length - tmp.length, tmp, 0,
|
|
tmp.length);
|
|
ptNum = tmp.length - 2;
|
|
}
|
|
pts = new int[graphW];
|
|
System.arraycopy(tmp, 0, pts, 0, tmp.length);
|
|
} else {
|
|
big.setColor(YELLOW);
|
|
pts[ptNum] =
|
|
(int) (graphY + graphH * (freeMemory / totalMemory));
|
|
for (int j = graphX + graphW - ptNum, k = 0; k < ptNum; k++, j++) {
|
|
if (k != 0) {
|
|
if (pts[k] != pts[k - 1]) {
|
|
big.drawLine(j - 1, pts[k - 1], j, pts[k]);
|
|
} else {
|
|
big.fillRect(j, pts[k], 1, 1);
|
|
}
|
|
}
|
|
}
|
|
if (ptNum + 2 == pts.length) {
|
|
// throw out oldest point
|
|
for (int j = 1; j < ptNum; j++) {
|
|
pts[j - 1] = pts[j];
|
|
}
|
|
--ptNum;
|
|
} else {
|
|
ptNum++;
|
|
}
|
|
}
|
|
g.drawImage(bimg, 0, 0, this);
|
|
}
|
|
|
|
public void start() {
|
|
thread = new Thread(this);
|
|
thread.setPriority(Thread.MIN_PRIORITY);
|
|
thread.setName("MemoryMonitor");
|
|
thread.start();
|
|
}
|
|
|
|
public synchronized void stop() {
|
|
thread = null;
|
|
notify();
|
|
}
|
|
|
|
@Override
|
|
@SuppressWarnings("SleepWhileHoldingLock")
|
|
public void run() {
|
|
|
|
Thread me = Thread.currentThread();
|
|
|
|
while (thread == me && !isShowing() || getSize().width == 0) {
|
|
try {
|
|
Thread.sleep(500);
|
|
} catch (InterruptedException e) {
|
|
return;
|
|
}
|
|
}
|
|
|
|
while (thread == me && isShowing()) {
|
|
Dimension d = getSize();
|
|
if (d.width != w || d.height != h) {
|
|
w = d.width;
|
|
h = d.height;
|
|
bimg = (BufferedImage) createImage(w, h);
|
|
big = bimg.createGraphics();
|
|
big.setFont(font);
|
|
FontMetrics fm = big.getFontMetrics(font);
|
|
ascent = fm.getAscent();
|
|
descent = fm.getDescent();
|
|
}
|
|
repaint();
|
|
try {
|
|
Thread.sleep(sleepAmount);
|
|
} catch (InterruptedException e) {
|
|
break;
|
|
}
|
|
if (dateStampCB.isSelected()) {
|
|
System.out.println(new Date().toString() + " " + usedStr);
|
|
}
|
|
}
|
|
thread = null;
|
|
}
|
|
}
|
|
|
|
public static void main(String s[]) {
|
|
final MemoryMonitor demo = new MemoryMonitor();
|
|
WindowListener l = new WindowAdapter() {
|
|
|
|
@Override
|
|
public void windowClosing(WindowEvent e) {
|
|
System.exit(0);
|
|
}
|
|
|
|
@Override
|
|
public void windowDeiconified(WindowEvent e) {
|
|
demo.surf.start();
|
|
}
|
|
|
|
@Override
|
|
public void windowIconified(WindowEvent e) {
|
|
demo.surf.stop();
|
|
}
|
|
};
|
|
JFrame f = new JFrame("J2D Demo - MemoryMonitor");
|
|
f.addWindowListener(l);
|
|
f.getContentPane().add("Center", demo);
|
|
f.pack();
|
|
f.setSize(new Dimension(200, 200));
|
|
f.setVisible(true);
|
|
demo.surf.start();
|
|
}
|
|
}
|