skrueger/swing/HeapBar.java

package skrueger.swing;

import java.awt.Color;
import java.awt.Graphics;
import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;
import java.util.Locale;
import java.util.Timer;
import java.util.TimerTask;

import javax.swing.JProgressBar;
import javax.swing.SwingUtilities;

import org.apache.log4j.Logger;

import schmitzm.geotools.gui.GeotoolsGUIUtil;
import schmitzm.lang.LangUtil;
import schmitzm.lang.ResourceProvider;
import schmitzm.swing.SwingUtil;
import skrueger.swing.formatter.MbDecimalFormatter;

public class HeapBar extends JProgressBar {
        private static final Logger LOGGER = Logger.getLogger(HeapBar.class);

        protected static ResourceProvider RESOURCE = new ResourceProvider(LangUtil
                        .extendPackagePath(SwingUtil.class,
                                        "resource.locales.SwingResourceBundle"), Locale.ENGLISH);

        private Timer updateTimer;
        String valueAsText = "";
        MbDecimalFormatter formatter = new MbDecimalFormatter();

        public HeapBar() {
                updateTimer = new Timer("check memory");
                updateTimer.scheduleAtFixedRate(new UpdateMemoryBarTask(), 100, 1000);

                setMinimum(0);
                setMaximum(100);

                SwingUtil.setPreferredWidth(this, 200);
                
                // Clicking the bar triggers a GC
                addMouseListener( new MouseAdapter() {
                        @Override
                        public void mouseClicked(MouseEvent e) {
                                LangUtil.gcTotal();
                        }
                });
        }

        @Override
        protected void paintComponent(Graphics g) {
                super.paintComponent(g);
                g.setColor(Color.black);
                g.drawString(valueAsText, 5, 12);
        }

        class UpdateMemoryBarTask extends TimerTask {

                @Override
                public void run() {

                        // Get current size of heap in bytes
                        long heapSize = Runtime.getRuntime().totalMemory();

                        // Get maximum size of heap in bytes. The heap cannot grow beyond
                        // this size.
                        // Any attempt will result in an OutOfMemoryException.
                        long heapMaxSize = Runtime.getRuntime().maxMemory();

                        // Get amount of free memory within the heap in bytes. This size
                        // will increase
                        // after garbage collection and decrease as new objects are created.
                        long heapFreeSize = Runtime.getRuntime().freeMemory();

                        long used = (heapSize - heapFreeSize);

                        int percentaUsed = (int) (used * 100 / heapMaxSize);

                        if (percentaUsed > 80)
                                LOGGER.warn(percentaUsed + "% belegt");

                        if (percentaUsed > 70) {
                                if (percentaUsed > 90)
                                        setForeground(Color.red);
                                else
                                        setForeground(Color.orange);
                        } else {
                                setForeground(Color.green);
                        }

                        setValue(percentaUsed);
                        valueAsText = RESOURCE.getString("HeapMemoryBar.status", formatter
                                        .format(used), percentaUsed, formatter.format(heapMaxSize));

                        repaint();
                }
        }
}
1	alfonx	519	package skrueger.swing;
2
3			import java.awt.Color;
4			import java.awt.Graphics;
5	alfonx	546	import java.awt.event.MouseAdapter;
6			import java.awt.event.MouseEvent;
7	alfonx	519	import java.util.Locale;
8			import java.util.Timer;
9			import java.util.TimerTask;
10
11			import javax.swing.JProgressBar;
12			import javax.swing.SwingUtilities;
13
14			import org.apache.log4j.Logger;
15
16			import schmitzm.geotools.gui.GeotoolsGUIUtil;
17			import schmitzm.lang.LangUtil;
18			import schmitzm.lang.ResourceProvider;
19			import schmitzm.swing.SwingUtil;
20			import skrueger.swing.formatter.MbDecimalFormatter;
21
22			public class HeapBar extends JProgressBar {
23			private static final Logger LOGGER = Logger.getLogger(HeapBar.class);
24
25			protected static ResourceProvider RESOURCE = new ResourceProvider(LangUtil
26			.extendPackagePath(SwingUtil.class,
27			"resource.locales.SwingResourceBundle"), Locale.ENGLISH);
28
29			private Timer updateTimer;
30			String valueAsText = "";
31			MbDecimalFormatter formatter = new MbDecimalFormatter();
32
33			public HeapBar() {
34			updateTimer = new Timer("check memory");
35			updateTimer.scheduleAtFixedRate(new UpdateMemoryBarTask(), 100, 1000);
36
37			setMinimum(0);
38			setMaximum(100);
39
40			SwingUtil.setPreferredWidth(this, 200);
41	alfonx	546
42			// Clicking the bar triggers a GC
43			addMouseListener( new MouseAdapter() {
44			@Override
45			public void mouseClicked(MouseEvent e) {
46			LangUtil.gcTotal();
47			}
48			});
49	alfonx	519	}
50
51			@Override
52			protected void paintComponent(Graphics g) {
53			super.paintComponent(g);
54			g.setColor(Color.black);
55			g.drawString(valueAsText, 5, 12);
56			}
57
58			class UpdateMemoryBarTask extends TimerTask {
59
60			@Override
61			public void run() {
62
63			// Get current size of heap in bytes
64			long heapSize = Runtime.getRuntime().totalMemory();
65
66			// Get maximum size of heap in bytes. The heap cannot grow beyond
67			// this size.
68			// Any attempt will result in an OutOfMemoryException.
69			long heapMaxSize = Runtime.getRuntime().maxMemory();
70
71			// Get amount of free memory within the heap in bytes. This size
72			// will increase
73			// after garbage collection and decrease as new objects are created.
74			long heapFreeSize = Runtime.getRuntime().freeMemory();
75
76			long used = (heapSize - heapFreeSize);
77
78			int percentaUsed = (int) (used * 100 / heapMaxSize);
79
80			if (percentaUsed > 80)
81			LOGGER.warn(percentaUsed + "% belegt");
82
83			if (percentaUsed > 70) {
84			if (percentaUsed > 90)
85			setForeground(Color.red);
86			else
87			setForeground(Color.orange);
88			} else {
89			setForeground(Color.green);
90			}
91
92			setValue(percentaUsed);
93			valueAsText = RESOURCE.getString("HeapMemoryBar.status", formatter
94			.format(used), percentaUsed, formatter.format(heapMaxSize));
95
96			repaint();
97			}
98			}
99			}
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