Update of /cvsroot/javaprofiler/module/net/sourceforge/javaprofiler/module/views
In directory usw-pr-cvs1:/tmp/cvs-serv29809
Added Files:
ActiveThreadsView.java
Log Message:
Panel showing count of active threads.
--- NEW FILE: ActiveThreadsView.java ---
/*
* Sun Public License Notice
*
* The contents of this file are subject to the Sun Public License
* Version 1.0 (the "License"); you may not use this file except
* in compliance with the License. A copy of the License is available
* at http://www.sun.com/
*
* The Original Code is the Java Profiler module. The Initial Developers
* of the Original Code are Jan Stola, Pavel Vacha, Michal Pise, Petr Luner,
* Lukas Petru and Marek Przeczek.
*
* Portions created by Jan Stola are Copyright (C) 2000-2001.
* All Rights Reserved.
*
* Portions created by Pavel Vacha are Copyright (C) 2000-2001.
* All Rights Reserved.
*
* Portions created by Michal Pise are Copyright (C) 2000-2001.
* All Rights Reserved.
*
* Portions created by Petr Luner are Copyright (C) 2000-2001.
* All Rights Reserved.
*
* Portions created by Lukas Petru are Copyright (C) 2000-2001.
* All Rights Reserved.
*
* Portions created by Marek Przeczek are Copyright (C) 2000-2001.
* All Rights Reserved.
*
* Contributors: Jan Stola, Pavel Vacha, Michal Pise, Petr Luner,
* Lukas Petru and Marek Przeczek.
*/
package net.sourceforge.javaprofiler.module.views;
import javax.swing.*;
import javax.swing.event.ChangeListener;
import javax.swing.event.ChangeEvent;
import java.awt.BorderLayout;
import java.util.TimerTask;
import java.util.Iterator;
import net.sourceforge.javaprofiler.jpiimpl.realtime.*;
/** This component provides is a panel containing graph of active threads and
* two labels showing the maximum and current count of active threads.
* @author Lukas Petru
*/
public class ActiveThreadsView extends JPanel {
/** Component showing a graph. */
private TimeSeriesGraph graph;
/** Object returned by getTimerTask. */
private TimerTask task;
/** Constructs a panel and an associated TimerTask. The graph is updated
* whenewer the associated TimerTask is run.
*/
public ActiveThreadsView(final ImageR image) {
super(new BorderLayout());
graph=new TimeSeriesGraph();
add(graph, BorderLayout.CENTER);
final TimeSeriesModel m=graph.getModel();
final JLabel label1=new JLabel("curr: 000");
final JLabel label2=new JLabel("max: 000");
m.addChangeListener(new ChangeListener() {
public void stateChanged(ChangeEvent e) {
label1.setText("curr: " + m.getLast());
label2.setText("max: " + m.getMax());
}
});
JPanel sPanel=new JPanel();
sPanel.add(label2);
sPanel.add(label1);
add(sPanel, BorderLayout.SOUTH);
task=new TimerTask() {
public void run() {
image.refreshThreads();
// count active threads
int act=0;
Iterator it=image.getThreads().iterator();
while (it.hasNext()) {
ThreadR th=(ThreadR) it.next();
if (th.isActive()) act++;
}
final int val=act;
// set data in event-dispatching thread
SwingUtilities.invokeLater(new Runnable() {
public void run() {
m.shift(val);
}
});
}
};
}
/** Returns associated <code>TimerTask</code>. */
public TimerTask getTimerTask() {
return task;
}
}
|
