/*

 * Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies). 

 * All rights reserved.

 * This component and the accompanying materials are made available

 * under the terms of the License "Eclipse Public License v1.0"

 * which accompanies this distribution, and is available

 * at the URL "http://www.eclipse.org/legal/epl-v10.html".

 *

 * Initial Contributors:

 * Nokia Corporation - initial contribution.

 *

 * Contributors:

 *

 * Description: 

 *

 */

/*

 * DebugDialog.java

 */

package com.nokia.carbide.cpp.internal.pi.utils;

import java.awt.BorderLayout;

import java.awt.GridLayout;

import javax.swing.JButton;

import javax.swing.JDialog;

import javax.swing.JLabel;

import javax.swing.JPanel;

public class DebugDialog extends JDialog 

{

	private static final long serialVersionUID = -7397509550206778612L;

	private JPanel panel;

	private JLabel freeMemory;

	private JLabel totalMemory;

	private JLabel usedMemory;

	private static Runtime runtime;

	private static long time4;

	private static void setTime4(long newTime) {

		time4 = newTime;

	}

	private static void setRuntime(Runtime newRuntime)

	{

		runtime = newRuntime;

	}

	public DebugDialog()

	{

		setTime4(0);

    	setRuntime(Runtime.getRuntime());

		freeMemory  = new JLabel(Messages.getString("DebugDialog.notInitialised")); //$NON-NLS-1$

		totalMemory = new JLabel(Messages.getString("DebugDialog.notInitialised")); //$NON-NLS-1$

		usedMemory  = new JLabel(Messages.getString("DebugDialog.notInitialised")); //$NON-NLS-1$

		this.setTitle(Messages.getString("DebugDialog.debugDialog")); //$NON-NLS-1$

		panel = (JPanel) this.getContentPane();

		panel.setLayout(new BorderLayout());

		panel.add(getMemoryPanel(), BorderLayout.CENTER);

		panel.add(getButtonPanel(), BorderLayout.SOUTH);

		this.pack();

		panel.updateUI();

	}

	private JPanel getButtonPanel() 

	{

		JPanel mp = new JPanel();

		mp.add(getRefreshButton());

		mp.add(getGarbageCollectionButton());

		mp.add(getTestButton());

		return mp;

	}

	private JPanel getMemoryPanel() 

	{

		JPanel mp = new JPanel();

		mp.setLayout(new GridLayout(3, 2));

		mp.add(new JLabel(Messages.getString("DebugDialog.freeMemory"))); //$NON-NLS-1$

		mp.add(freeMemory);

		mp.add(new JLabel(Messages.getString("DebugDialog.totalMemory"))); //$NON-NLS-1$

		mp.add(totalMemory);

		mp.add(new JLabel(Messages.getString("DebugDialog.usedMemory"))); //$NON-NLS-1$

		mp.add(usedMemory);

//		refreshMemoryStatus();

		return mp;

	}

	public void refreshMemoryStatus()

	{

		long free = runtime.freeMemory() / 1000;

		long total = runtime.totalMemory() / 1000;

		long used = total - free;

		freeMemory.setText("" + free); //$NON-NLS-1$

		totalMemory.setText("" + total); //$NON-NLS-1$

		usedMemory.setText("" + used); //$NON-NLS-1$

	}

	private JButton getRefreshButton() 

	{

		JButton refresh = new JButton(Messages.getString("DebugDialog.refresh")); //$NON-NLS-1$

		refresh.addActionListener(new java.awt.event.ActionListener() 

		{ 

			public void actionPerformed(java.awt.event.ActionEvent e) 

			{    

				refreshMemoryStatus();

			}

		});

		return refresh;

	}

	private JButton getGarbageCollectionButton() 

	{

		JButton garbage = new JButton(Messages.getString("DebugDialog.garbage")); //$NON-NLS-1$

		garbage.addActionListener(new java.awt.event.ActionListener() 

		{ 

			public void actionPerformed(java.awt.event.ActionEvent e) 

			{  

				//runs garbage collection

			    garbageCollection();

			}

		});

		return garbage;

	}

	private JButton getTestButton() 

	{

		JButton refresh = new JButton(Messages.getString("DebugDialog.test")); //$NON-NLS-1$

		refresh.addActionListener(new java.awt.event.ActionListener() 

		{ 

			public void actionPerformed(java.awt.event.ActionEvent e) 

			{    

				refreshMemoryStatus();

			}

		});

		return refresh;

	}

	public static void garbageCollection()

	{

	    long time1 = System.currentTimeMillis();

	    //Time time = new Time(System.currentTimeMillis());

	    runtime.runFinalization();

	    runtime.gc();

	    long time2 = System.currentTimeMillis();

	    long time3 = time2 - time1;

	    time4 = time4 + time3;

	    System.out.println(Messages.getString("DebugDialog.garbageCollected1") + time3 + Messages.getString("DebugDialog.garbageCollected2") + time4 + Messages.getString("DebugDialog.garbageCollected3")); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$

	    //Time time2 = new Time(System.currentTimeMillis());

	}

	public static void printMemoryUsage()

	{

		//Runtime runtime = Runtime.getRuntime();

		long free = runtime.freeMemory() / 1000;

		long total = runtime.totalMemory() / 1000;

		long used = total - free;

		System.out.println(Messages.getString("DebugDialog.currentMemory") + used); //$NON-NLS-1$

	}

	public static String getCurrentMemoryUsage()

	{

		long free = runtime.freeMemory() / 1000000;

		long total = runtime.totalMemory() / 1000000;

		long used = total - free;

		return "" + used + "/" + total; //$NON-NLS-1$ //$NON-NLS-2$ 

	}

}