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R2075/DeconvolutionLab2/src/lab/system/SystemPanel.java
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SystemPanel.java
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package lab.system;
import java.awt.BorderLayout;
import java.awt.FlowLayout;
import java.io.File;
import java.lang.management.ClassLoadingMXBean;
import java.lang.management.ManagementFactory;
import java.lang.management.MemoryMXBean;
import java.lang.management.MemoryUsage;
import java.lang.management.OperatingSystemMXBean;
import java.lang.management.RuntimeMXBean;
import java.lang.reflect.Method;
import java.lang.reflect.Modifier;
import java.util.ArrayList;
import java.util.Timer;
import java.util.TimerTask;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.event.ChangeEvent;
import javax.swing.event.ChangeListener;
import lab.component.CustomizedTable;
import lab.component.SpinnerRangeInteger;
import lab.tools.NumFormat;
public class SystemPanel extends JPanel implements ChangeListener {
private CustomizedTable table;
private TimerTask updater = new Updater();
private Timer timer;
private SpinnerRangeInteger spnRefresh;
private int refreshTime = 1000;
public SystemPanel(int refreshTime) {
super(new BorderLayout());
this.refreshTime = refreshTime;
spnRefresh = new SpinnerRangeInteger(refreshTime, 1, 360000, 100);
table = new CustomizedTable(new String[] { "Manager", "Feature", "Value" }, false);
table.update(getFeatures());
table.setFillsViewportHeight(true);
JPanel pn = new JPanel(new FlowLayout());
pn.add(new JLabel("Refresh time"));
pn.add(spnRefresh);
pn.add(new JLabel("ms"));
JScrollPane scroll = new JScrollPane(table);
scroll.setVisible(true);
add(pn, BorderLayout.NORTH);
add(scroll, BorderLayout.CENTER);
timer = new Timer();
timer.schedule(updater, 1, refreshTime);
spnRefresh.addChangeListener(this);
}
public static void show(int w, int h) {
JFrame frame = new JFrame("System Info");
frame.add(new SystemPanel(1000));
frame.pack();
frame.setVisible(true);
}
@Override
public void stateChanged(ChangeEvent e) {
if (e.getSource() == spnRefresh)
restart(spnRefresh.get());
}
public void restart(int refreshTime) {
this.refreshTime = refreshTime;
if (updater != null) {
updater.cancel();
updater = null;
}
updater = new Updater();
timer.schedule(updater, 0, refreshTime);
}
private class Updater extends TimerTask {
@Override
public void run() {
if (table != null) {
table.update(getFeatures());
}
}
}
public int getSystemTime() {
return refreshTime;
}
public ArrayList<String[]> getFeatures() {
ArrayList<String[]> features = new ArrayList<String[]>();
String f = "";
features.add(new String[] { "Properties", "OS", "" + System.getProperty("os.name") + " " + System.getProperty("os.version") + " " + System.getProperty("os.arch") });
features.add(new String[] { "Properties", "Java Version", "" + System.getProperty("java.version") });
f = "java.class.path";
features.add(new String[] { "Properties", f, "" + System.getProperty(f) });
f = "java.home";
features.add(new String[] { "Properties", f, "" + System.getProperty(f) });
f = "user.dir";
features.add(new String[] { "Properties", f, "" + System.getProperty(f) });
f = "user.home";
features.add(new String[] { "Properties", f, "" + System.getProperty(f) });
f = "user.name";
features.add(new String[] { "Properties", f, "" + System.getProperty(f) });
Runtime runt = Runtime.getRuntime();
features.add(new String[] { "JVM", "Available processors", "" + runt.availableProcessors() });
features.add(new String[] { "JVM", "Initial Memory (-Xms)", NumFormat.bytes(runt.freeMemory()) });
features.add(new String[] { "JVM", "Maximum Memory (-Xmx)", NumFormat.bytes(runt.maxMemory()) });
features.add(new String[] { "JVM", "Total Used Memory", NumFormat.bytes(runt.totalMemory()) });
MemoryMXBean mem = ManagementFactory.getMemoryMXBean();
MemoryUsage heapU = mem.getHeapMemoryUsage();
MemoryUsage nonhU = mem.getNonHeapMemoryUsage();
features.add(new String[] { "Memory", "Heap Used", NumFormat.bytes(heapU.getUsed()) });
features.add(new String[] { "Memory", "Heap Init", NumFormat.bytes(heapU.getInit()) });
features.add(new String[] { "Memory", "Heap Max ", NumFormat.bytes(heapU.getMax()) });
features.add(new String[] { "Memory", "NonHeap Used", NumFormat.bytes(nonhU.getUsed()) });
features.add(new String[] { "Memory", "NonHeap Init", NumFormat.bytes(nonhU.getInit()) });
features.add(new String[] { "Memory", "NonHeap Max ", NumFormat.bytes(nonhU.getMax()) });
RuntimeMXBean rt = ManagementFactory.getRuntimeMXBean();
features.add(new String[] { "Runtime", "Library Path", rt.getLibraryPath() });
features.add(new String[] { "Runtime", "Uptime", "" + NumFormat.time(rt.getUptime()) });
features.add(new String[] { "Runtime", "Name", rt.getName() });
features.add(new String[] { "Runtime", "Vm Version", rt.getVmVersion() });
for (String input : rt.getInputArguments())
features.add(new String[] { "Runtime", "Input Arguments", input });
File[] roots = File.listRoots();
for (File root : roots) {
features.add(new String[] { "FileSystem", "Root Path", root.getAbsolutePath() });
features.add(new String[] { "FileSystem", "Total Space", NumFormat.bytes(root.getTotalSpace()) });
features.add(new String[] { "FileSystem", "Usable Space", NumFormat.bytes(root.getUsableSpace()) });
}
ClassLoadingMXBean loader = ManagementFactory.getClassLoadingMXBean();
features.add(new String[] { "ClassLoading", "Loaded Class", "" + loader.getLoadedClassCount() });
OperatingSystemMXBean os = ManagementFactory.getOperatingSystemMXBean();
for (Method method : os.getClass().getDeclaredMethods()) {
method.setAccessible(true);
if (method.getName().startsWith("get") && Modifier.isPublic(method.getModifiers())) {
try {
String name = split(method.getName());
features.add(new String[] { "OS", name, "" + method.invoke(os).toString() });
}
catch (Exception e) {
}
}
}
return features;
}
private static String split(String name) {
String func = name.substring(3);
return func.replaceAll("(\\p{Ll})(\\p{Lu})", "$1 $2");
}
}
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