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	/*
	* Copyright (c) 2004, 2013, Oracle and/or its affiliates. All rights reserved.
	* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
	*
	* This code is free software; you can redistribute it and/or modify it
	* under the terms of the GNU General Public License version 2 only, as
	* published by the Free Software Foundation. Oracle designates this
	* particular file as subject to the "Classpath" exception as provided
	* by Oracle in the LICENSE file that accompanied this code.
	*
	* This code is distributed in the hope that it will be useful, but WITHOUT
	* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
	* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
	* version 2 for more details (a copy is included in the LICENSE file that
	* accompanied this code).
	*
	* You should have received a copy of the GNU General Public License version
	* 2 along with this work; if not, write to the Free Software Foundation,
	* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
	*
	* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
	* or visit www.oracle.com if you need additional information or have any
	* questions.
	*/

	package sun.tools.jconsole;

	import java.awt.*;
	import java.awt.event.*;
	import java.beans.*;
	import java.io.*;
	import java.lang.reflect.Array;
	import java.util.*;

	import javax.accessibility.*;
	import javax.swing.*;
	import javax.swing.border.*;
	import javax.swing.filechooser.*;
	import javax.swing.filechooser.FileFilter;


	import com.sun.tools.jconsole.JConsoleContext;

	import static sun.tools.jconsole.Formatter.*;
	import static sun.tools.jconsole.ProxyClient.*;

	@SuppressWarnings("serial")
	public class Plotter extends JComponent
	implements Accessible, ActionListener, PropertyChangeListener {

	public static enum Unit {
	NONE, BYTES, PERCENT
	}

	static final String[] rangeNames = {
	Messages.ONE_MIN,
	Messages.FIVE_MIN,
	Messages.TEN_MIN,
	Messages.THIRTY_MIN,
	Messages.ONE_HOUR,
	Messages.TWO_HOURS,
	Messages.THREE_HOURS,
	Messages.SIX_HOURS,
	Messages.TWELVE_HOURS,
	Messages.ONE_DAY,
	Messages.SEVEN_DAYS,
	Messages.ONE_MONTH,
	Messages.THREE_MONTHS,
	Messages.SIX_MONTHS,
	Messages.ONE_YEAR,
	Messages.ALL
	};

	static final int[] rangeValues = {
	1,
	5,
	10,
	30,
	1 * 60,
	2 * 60,
	3 * 60,
	6 * 60,
	12 * 60,
	1 * 24 * 60,
	7 * 24 * 60,
	1 * 31 * 24 * 60,
	3 * 31 * 24 * 60,
	6 * 31 * 24 * 60,
	366 * 24 * 60,
	-1
	};


	final static long SECOND = 1000;
	final static long MINUTE = 60 * SECOND;
	final static long HOUR = 60 * MINUTE;
	final static long DAY = 24 * HOUR;

	final static Color bgColor = new Color(250, 250, 250);
	final static Color defaultColor = Color.blue.darker();

	final static int ARRAY_SIZE_INCREMENT = 4000;

	private static Stroke dashedStroke;

	private TimeStamps times = new TimeStamps();
	private ArrayList<Sequence> seqs = new ArrayList<Sequence>();
	private JPopupMenu popupMenu;
	private JMenu timeRangeMenu;
	private JRadioButtonMenuItem[] menuRBs;
	private JMenuItem saveAsMI;
	private JFileChooser saveFC;

	private int viewRange = -1; // Minutes (value <= 0 means full range)
	private Unit unit;
	private int decimals;
	private double decimalsMultiplier;
	private Border border = null;
	private Rectangle r = new Rectangle(1, 1, 1, 1);
	private Font smallFont = null;

	// Initial margins, may be recalculated as needed
	private int topMargin = 10;
	private int bottomMargin = 45;
	private int leftMargin = 65;
	private int rightMargin = 70;
	private final boolean displayLegend;

	public Plotter() {
	this(Unit.NONE, 0);
	}

	public Plotter(Unit unit) {
	this(unit, 0);
	}

	public Plotter(Unit unit, int decimals) {
	this(unit,decimals,true);
	}

	// Note: If decimals > 0 then values must be decimally shifted left
	// that many places, i.e. multiplied by Math.pow(10.0, decimals).
	public Plotter(Unit unit, int decimals, boolean displayLegend) {
	this.displayLegend = displayLegend;
	setUnit(unit);
	setDecimals(decimals);

	enableEvents(AWTEvent.MOUSE_EVENT_MASK);

	addMouseListener(new MouseAdapter() {
	@Override
	public void mousePressed(MouseEvent e) {
	if (getParent() instanceof PlotterPanel) {
	getParent().requestFocusInWindow();
	}
	}
	});

	}

	public void setUnit(Unit unit) {
	this.unit = unit;
	}

	public void setDecimals(int decimals) {
	this.decimals = decimals;
	this.decimalsMultiplier = Math.pow(10.0, decimals);
	}

	public void createSequence(String key, String name, Color color, boolean isPlotted) {
	Sequence seq = getSequence(key);
	if (seq == null) {
	seq = new Sequence(key);
	}
	seq.name = name;
	seq.color = (color != null) ? color : defaultColor;
	seq.isPlotted = isPlotted;

	seqs.add(seq);
	}

	public void setUseDashedTransitions(String key, boolean b) {
	Sequence seq = getSequence(key);
	if (seq != null) {
	seq.transitionStroke = b ? getDashedStroke() : null;
	}
	}

	public void setIsPlotted(String key, boolean isPlotted) {
	Sequence seq = getSequence(key);
	if (seq != null) {
	seq.isPlotted = isPlotted;
	}
	}

	// Note: If decimals > 0 then values must be decimally shifted left
	// that many places, i.e. multiplied by Math.pow(10.0, decimals).
	public synchronized void addValues(long time, long... values) {
	assert (values.length == seqs.size());
	times.add(time);
	for (int i = 0; i < values.length; i++) {
	seqs.get(i).add(values[i]);
	}
	repaint();
	}

	private Sequence getSequence(String key) {
	for (Sequence seq : seqs) {
	if (seq.key.equals(key)) {
	return seq;
	}
	}
	return null;
	}

	/**
	* @return the displayed time range in minutes, or -1 for all data
	*/
	public int getViewRange() {
	return viewRange;
	}

	/**
	* @param minutes the displayed time range in minutes, or -1 to diaplay all data
	*/
	public void setViewRange(int minutes) {
	if (minutes != viewRange) {
	int oldValue = viewRange;
	viewRange = minutes;
	/* Do not i18n this string */
	firePropertyChange("viewRange", oldValue, viewRange);
	if (popupMenu != null) {
	for (int i = 0; i < menuRBs.length; i++) {
	if (rangeValues[i] == viewRange) {
	menuRBs[i].setSelected(true);
	break;
	}
	}
	}
	repaint();
	}
	}

	@Override
	public JPopupMenu getComponentPopupMenu() {
	if (popupMenu == null) {
	popupMenu = new JPopupMenu(Messages.CHART_COLON);
	timeRangeMenu = new JMenu(Messages.PLOTTER_TIME_RANGE_MENU);
	timeRangeMenu.setMnemonic(Resources.getMnemonicInt(Messages.PLOTTER_TIME_RANGE_MENU));
	popupMenu.add(timeRangeMenu);
	menuRBs = new JRadioButtonMenuItem[rangeNames.length];
	ButtonGroup rbGroup = new ButtonGroup();
	for (int i = 0; i < rangeNames.length; i++) {
	menuRBs[i] = new JRadioButtonMenuItem(rangeNames[i]);
	rbGroup.add(menuRBs[i]);
	menuRBs[i].addActionListener(this);
	if (viewRange == rangeValues[i]) {
	menuRBs[i].setSelected(true);
	}
	timeRangeMenu.add(menuRBs[i]);
	}

	popupMenu.addSeparator();

	saveAsMI = new JMenuItem(Messages.PLOTTER_SAVE_AS_MENU_ITEM);
	saveAsMI.setMnemonic(Resources.getMnemonicInt(Messages.PLOTTER_SAVE_AS_MENU_ITEM));
	saveAsMI.addActionListener(this);
	popupMenu.add(saveAsMI);
	}
	return popupMenu;
	}

	public void actionPerformed(ActionEvent ev) {
	JComponent src = (JComponent)ev.getSource();
	if (src == saveAsMI) {
	saveAs();
	} else {
	int index = timeRangeMenu.getPopupMenu().getComponentIndex(src);
	setViewRange(rangeValues[index]);
	}
	}

	private void saveAs() {
	if (saveFC == null) {
	saveFC = new SaveDataFileChooser();
	}
	int ret = saveFC.showSaveDialog(this);
	if (ret == JFileChooser.APPROVE_OPTION) {
	saveDataToFile(saveFC.getSelectedFile());
	}
	}

	private void saveDataToFile(File file) {
	try {
	PrintStream out = new PrintStream(new FileOutputStream(file));

	// Print header line
	out.print("Time");
	for (Sequence seq : seqs) {
	out.print(","+seq.name);
	}
	out.println();

	// Print data lines
	if (seqs.size() > 0 && seqs.get(0).size > 0) {
	for (int i = 0; i < seqs.get(0).size; i++) {
	double excelTime = toExcelTime(times.time(i));
	out.print(String.format(Locale.ENGLISH, "%.6f", excelTime));
	for (Sequence seq : seqs) {
	out.print("," + getFormattedValue(seq.value(i), false));
	}
	out.println();
	}
	}

	out.close();
	JOptionPane.showMessageDialog(this,
	Resources.format(Messages.FILE_CHOOSER_SAVED_FILE,
	file.getAbsolutePath(),
	file.length()));
	} catch (IOException ex) {
	String msg = ex.getLocalizedMessage();
	String path = file.getAbsolutePath();
	if (msg.startsWith(path)) {
	msg = msg.substring(path.length()).trim();
	}
	JOptionPane.showMessageDialog(this,
	Resources.format(Messages.FILE_CHOOSER_SAVE_FAILED_MESSAGE,
	path,
	msg),
	Messages.FILE_CHOOSER_SAVE_FAILED_TITLE,
	JOptionPane.ERROR_MESSAGE);
	}
	}

	@Override
	public void paintComponent(Graphics g) {
	super.paintComponent(g);

	int width = getWidth()-rightMargin-leftMargin-10;
	int height = getHeight()-topMargin-bottomMargin;
	if (width <= 0 \|\| height <= 0) {
	// not enough room to paint anything
	return;
	}

	Color oldColor = g.getColor();
	Font oldFont = g.getFont();
	Color fg = getForeground();
	Color bg = getBackground();
	boolean bgIsLight = (bg.getRed() > 200 &&
	bg.getGreen() > 200 &&
	bg.getBlue() > 200);


	((Graphics2D)g).setRenderingHint(RenderingHints.KEY_ANTIALIASING,
	RenderingHints.VALUE_ANTIALIAS_ON);

	if (smallFont == null) {
	smallFont = oldFont.deriveFont(9.0F);
	}

	r.x = leftMargin - 5;
	r.y = topMargin - 8;
	r.width = getWidth()-leftMargin-rightMargin;
	r.height = getHeight()-topMargin-bottomMargin+16;

	if (border == null) {
	// By setting colors here, we avoid recalculating them
	// over and over.
	border = new BevelBorder(BevelBorder.LOWERED,
	getBackground().brighter().brighter(),
	getBackground().brighter(),
	getBackground().darker().darker(),
	getBackground().darker());
	}

	border.paintBorder(this, g, r.x, r.y, r.width, r.height);

	// Fill background color
	g.setColor(bgColor);
	g.fillRect(r.x+2, r.y+2, r.width-4, r.height-4);
	g.setColor(oldColor);

	long tMin = Long.MAX_VALUE;
	long tMax = Long.MIN_VALUE;
	long vMin = Long.MAX_VALUE;
	long vMax = 1;

	int w = getWidth()-rightMargin-leftMargin-10;
	int h = getHeight()-topMargin-bottomMargin;

	if (times.size > 1) {
	tMin = Math.min(tMin, times.time(0));
	tMax = Math.max(tMax, times.time(times.size-1));
	}
	long viewRangeMS;
	if (viewRange > 0) {
	viewRangeMS = viewRange * MINUTE;
	} else {
	// Display full time range, but no less than a minute
	viewRangeMS = Math.max(tMax - tMin, 1 * MINUTE);
	}

	// Calculate min/max values
	for (Sequence seq : seqs) {
	if (seq.size > 0) {
	for (int i = 0; i < seq.size; i++) {
	if (seq.size == 1 \|\| times.time(i) >= tMax - viewRangeMS) {
	long val = seq.value(i);
	if (val > Long.MIN_VALUE) {
	vMax = Math.max(vMax, val);
	vMin = Math.min(vMin, val);
	}
	}
	}
	} else {
	vMin = 0L;
	}
	if (unit == Unit.BYTES \|\| !seq.isPlotted) {
	// We'll scale only to the first (main) value set.
	// TODO: Use a separate property for this.
	break;
	}
	}

	// Normalize scale
	vMax = normalizeMax(vMax);
	if (vMin > 0) {
	if (vMax / vMin > 4) {
	vMin = 0;
	} else {
	vMin = normalizeMin(vMin);
	}
	}


	g.setColor(fg);

	// Axes
	// Draw vertical axis
	int x = leftMargin - 18;
	int y = topMargin;
	FontMetrics fm = g.getFontMetrics();

	g.drawLine(x, y, x, y+h);

	int n = 5;
	if ((""+vMax).startsWith("2")) {
	n = 4;
	} else if ((""+vMax).startsWith("3")) {
	n = 6;
	} else if ((""+vMax).startsWith("4")) {
	n = 4;
	} else if ((""+vMax).startsWith("6")) {
	n = 6;
	} else if ((""+vMax).startsWith("7")) {
	n = 7;
	} else if ((""+vMax).startsWith("8")) {
	n = 8;
	} else if ((""+vMax).startsWith("9")) {
	n = 3;
	}

	// Ticks
	ArrayList<Long> tickValues = new ArrayList<Long>();
	tickValues.add(vMin);
	for (int i = 0; i < n; i++) {
	long v = i * vMax / n;
	if (v > vMin) {
	tickValues.add(v);
	}
	}
	tickValues.add(vMax);
	n = tickValues.size();

	String[] tickStrings = new String[n];
	for (int i = 0; i < n; i++) {
	long v = tickValues.get(i);
	tickStrings[i] = getSizeString(v, vMax);
	}

	// Trim trailing decimal zeroes.
	if (decimals > 0) {
	boolean trimLast = true;
	boolean removedDecimalPoint = false;
	do {
	for (String str : tickStrings) {
	if (!(str.endsWith("0") \|\| str.endsWith("."))) {
	trimLast = false;
	break;
	}
	}
	if (trimLast) {
	if (tickStrings[0].endsWith(".")) {
	removedDecimalPoint = true;
	}
	for (int i = 0; i < n; i++) {
	String str = tickStrings[i];
	tickStrings[i] = str.substring(0, str.length()-1);
	}
	}
	} while (trimLast && !removedDecimalPoint);
	}

	// Draw ticks
	int lastY = Integer.MAX_VALUE;
	for (int i = 0; i < n; i++) {
	long v = tickValues.get(i);
	y = topMargin+h-(int)(h * (v-vMin) / (vMax-vMin));
	g.drawLine(x-2, y, x+2, y);
	String s = tickStrings[i];
	if (unit == Unit.PERCENT) {
	s += "%";
	}
	int sx = x-6-fm.stringWidth(s);
	if (y < lastY-13) {
	if (checkLeftMargin(sx)) {
	// Wait for next repaint
	return;
	}
	g.drawString(s, sx, y+4);
	}
	// Draw horizontal grid line
	g.setColor(Color.lightGray);
	g.drawLine(r.x + 4, y, r.x + r.width - 4, y);
	g.setColor(fg);
	lastY = y;
	}

	// Draw horizontal axis
	x = leftMargin;
	y = topMargin + h + 15;
	g.drawLine(x, y, x+w, y);

	long t1 = tMax;
	if (t1 <= 0L) {
	// No data yet, so draw current time
	t1 = System.currentTimeMillis();
	}
	long tz = timeDF.getTimeZone().getOffset(t1);
	long tickInterval = calculateTickInterval(w, 40, viewRangeMS);
	if (tickInterval > 3 * HOUR) {
	tickInterval = calculateTickInterval(w, 80, viewRangeMS);
	}
	long t0 = tickInterval - (t1 - viewRangeMS + tz) % tickInterval;
	while (t0 < viewRangeMS) {
	x = leftMargin + (int)(w * t0 / viewRangeMS);
	g.drawLine(x, y-2, x, y+2);

	long t = t1 - viewRangeMS + t0;
	String str = formatClockTime(t);
	g.drawString(str, x, y+16);
	//if (tickInterval > (1 * HOUR) && t % (1 * DAY) == 0) {
	if ((t + tz) % (1 * DAY) == 0) {
	str = formatDate(t);
	g.drawString(str, x, y+27);
	}
	// Draw vertical grid line
	g.setColor(Color.lightGray);
	g.drawLine(x, topMargin, x, topMargin + h);
	g.setColor(fg);
	t0 += tickInterval;
	}

	// Plot values
	int start = 0;
	int nValues = 0;
	int nLists = seqs.size();
	if (nLists > 0) {
	nValues = seqs.get(0).size;
	}
	if (nValues == 0) {
	g.setColor(oldColor);
	return;
	} else {
	Sequence seq = seqs.get(0);
	// Find starting point
	for (int p = 0; p < seq.size; p++) {
	if (times.time(p) >= tMax - viewRangeMS) {
	start = p;
	break;
	}
	}
	}

	//Optimization: collapse plot of more than four values per pixel
	int pointsPerPixel = (nValues - start) / w;
	if (pointsPerPixel < 4) {
	pointsPerPixel = 1;
	}

	// Draw graphs
	// Loop backwards over sequences because the first needs to be painted on top
	for (int i = nLists-1; i >= 0; i--) {
	int x0 = leftMargin;
	int y0 = topMargin + h + 1;

	Sequence seq = seqs.get(i);
	if (seq.isPlotted && seq.size > 0) {
	// Paint twice, with white and with color
	for (int pass = 0; pass < 2; pass++) {
	g.setColor((pass == 0) ? Color.white : seq.color);
	int x1 = -1;
	long v1 = -1;
	for (int p = start; p < nValues; p += pointsPerPixel) {
	// Make sure we get the last value
	if (pointsPerPixel > 1 && p >= nValues - pointsPerPixel) {
	p = nValues - 1;
	}
	int x2 = (int)(w * (times.time(p)-(t1-viewRangeMS)) / viewRangeMS);
	long v2 = seq.value(p);
	if (v2 >= vMin && v2 <= vMax) {
	int y2 = (int)(h * (v2 -vMin) / (vMax-vMin));
	if (x1 >= 0 && v1 >= vMin && v1 <= vMax) {
	int y1 = (int)(h * (v1-vMin) / (vMax-vMin));

	if (y1 == y2) {
	// fillrect is much faster
	g.fillRect(x0+x1, y0-y1-pass, x2-x1, 1);
	} else {
	Graphics2D g2d = (Graphics2D)g;
	Stroke oldStroke = null;
	if (seq.transitionStroke != null) {
	oldStroke = g2d.getStroke();
	g2d.setStroke(seq.transitionStroke);
	}
	g.drawLine(x0+x1, y0-y1-pass, x0+x2, y0-y2-pass);
	if (oldStroke != null) {
	g2d.setStroke(oldStroke);
	}
	}
	}
	}
	x1 = x2;
	v1 = v2;
	}
	}

	// Current value
	long v = seq.value(seq.size - 1);
	if (v >= vMin && v <= vMax) {
	if (bgIsLight) {
	g.setColor(seq.color);
	} else {
	g.setColor(fg);
	}
	x = r.x + r.width + 2;
	y = topMargin+h-(int)(h * (v-vMin) / (vMax-vMin));
	// a small triangle/arrow
	g.fillPolygon(new int[] { x+2, x+6, x+6 },
	new int[] { y, y+3, y-3 },
	3);
	}
	g.setColor(fg);
	}
	}

	int[] valueStringSlots = new int[nLists];
	for (int i = 0; i < nLists; i++) valueStringSlots[i] = -1;
	for (int i = 0; i < nLists; i++) {
	Sequence seq = seqs.get(i);
	if (seq.isPlotted && seq.size > 0) {
	// Draw current value

	// TODO: collapse values if pointsPerPixel >= 4

	long v = seq.value(seq.size - 1);
	if (v >= vMin && v <= vMax) {
	x = r.x + r.width + 2;
	y = topMargin+h-(int)(h * (v-vMin) / (vMax-vMin));
	int y2 = getValueStringSlot(valueStringSlots, y, 2*10, i);
	g.setFont(smallFont);
	if (bgIsLight) {
	g.setColor(seq.color);
	} else {
	g.setColor(fg);
	}
	String curValue = getFormattedValue(v, true);
	if (unit == Unit.PERCENT) {
	curValue += "%";
	}
	int valWidth = fm.stringWidth(curValue);
	String legend = (displayLegend?seq.name:"");
	int legendWidth = fm.stringWidth(legend);
	if (checkRightMargin(valWidth) \|\| checkRightMargin(legendWidth)) {
	// Wait for next repaint
	return;
	}
	g.drawString(legend , x + 17, Math.min(topMargin+h, y2 + 3 - 10));
	g.drawString(curValue, x + 17, Math.min(topMargin+h + 10, y2 + 3));

	// Maybe draw a short line to value
	if (y2 > y + 3) {
	g.drawLine(x + 9, y + 2, x + 14, y2);
	} else if (y2 < y - 3) {
	g.drawLine(x + 9, y - 2, x + 14, y2);
	}
	}
	g.setFont(oldFont);
	g.setColor(fg);

	}
	}
	g.setColor(oldColor);
	}

	private boolean checkLeftMargin(int x) {
	// Make sure leftMargin has at least 2 pixels over
	if (x < 2) {
	leftMargin += (2 - x);
	// Repaint from top (above any cell renderers)
	SwingUtilities.getWindowAncestor(this).repaint();
	return true;
	}
	return false;
	}

	private boolean checkRightMargin(int w) {
	// Make sure rightMargin has at least 2 pixels over
	if (w + 2 > rightMargin) {
	rightMargin = (w + 2);
	// Repaint from top (above any cell renderers)
	SwingUtilities.getWindowAncestor(this).repaint();
	return true;
	}
	return false;
	}

	private int getValueStringSlot(int[] slots, int y, int h, int i) {
	for (int s = 0; s < slots.length; s++) {
	if (slots[s] >= y && slots[s] < y + h) {
	// collide below us
	if (slots[s] > h) {
	return getValueStringSlot(slots, slots[s]-h, h, i);
	} else {
	return getValueStringSlot(slots, slots[s]+h, h, i);
	}
	} else if (y >= h && slots[s] > y - h && slots[s] < y) {
	// collide above us
	return getValueStringSlot(slots, slots[s]+h, h, i);
	}
	}
	slots[i] = y;
	return y;
	}

	private long calculateTickInterval(int w, int hGap, long viewRangeMS) {
	long tickInterval = viewRangeMS * hGap / w;
	if (tickInterval < 1 * MINUTE) {
	tickInterval = 1 * MINUTE;
	} else if (tickInterval < 5 * MINUTE) {
	tickInterval = 5 * MINUTE;
	} else if (tickInterval < 10 * MINUTE) {
	tickInterval = 10 * MINUTE;
	} else if (tickInterval < 30 * MINUTE) {
	tickInterval = 30 * MINUTE;
	} else if (tickInterval < 1 * HOUR) {
	tickInterval = 1 * HOUR;
	} else if (tickInterval < 3 * HOUR) {
	tickInterval = 3 * HOUR;
	} else if (tickInterval < 6 * HOUR) {
	tickInterval = 6 * HOUR;
	} else if (tickInterval < 12 * HOUR) {
	tickInterval = 12 * HOUR;
	} else if (tickInterval < 1 * DAY) {
	tickInterval = 1 * DAY;
	} else {
	tickInterval = normalizeMax(tickInterval / DAY) * DAY;
	}
	return tickInterval;
	}

	private long normalizeMin(long l) {
	int exp = (int)Math.log10((double)l);
	long multiple = (long)Math.pow(10.0, exp);
	int i = (int)(l / multiple);
	return i * multiple;
	}

	private long normalizeMax(long l) {
	int exp = (int)Math.log10((double)l);
	long multiple = (long)Math.pow(10.0, exp);
	int i = (int)(l / multiple);
	l = (i+1)*multiple;
	return l;
	}

	private String getFormattedValue(long v, boolean groupDigits) {
	String str;
	String fmt = "%";
	if (groupDigits) {
	fmt += ",";
	}
	if (decimals > 0) {
	fmt += "." + decimals + "f";
	str = String.format(fmt, v / decimalsMultiplier);
	} else {
	fmt += "d";
	str = String.format(fmt, v);
	}
	return str;
	}

	private String getSizeString(long v, long vMax) {
	String s;

	if (unit == Unit.BYTES && decimals == 0) {
	s = formatBytes(v, vMax);
	} else {
	s = getFormattedValue(v, true);
	}
	return s;
	}

	private static synchronized Stroke getDashedStroke() {
	if (dashedStroke == null) {
	dashedStroke = new BasicStroke(1.0f,
	BasicStroke.CAP_BUTT,
	BasicStroke.JOIN_MITER,
	10.0f,
	new float[] { 2.0f, 3.0f },
	0.0f);
	}
	return dashedStroke;
	}

	private static Object extendArray(Object a1) {
	int n = Array.getLength(a1);
	Object a2 =
	Array.newInstance(a1.getClass().getComponentType(),
	n + ARRAY_SIZE_INCREMENT);
	System.arraycopy(a1, 0, a2, 0, n);
	return a2;
	}


	private static class TimeStamps {
	// Time stamps (long) are split into offsets (long) and a
	// series of times from the offsets (int). A new offset is
	// stored when the the time value doesn't fit in an int
	// (approx every 24 days). An array of indices is used to
	// define the starting point for each offset in the times
	// array.
	long[] offsets = new long[0];
	int[] indices = new int[0];
	int[] rtimes = new int[ARRAY_SIZE_INCREMENT];

	// Number of stored timestamps
	int size = 0;

	/**
	* Returns the time stamp for index i
	*/
	public long time(int i) {
	long offset = 0;
	for (int j = indices.length - 1; j >= 0; j--) {
	if (i >= indices[j]) {
	offset = offsets[j];
	break;
	}
	}
	return offset + rtimes[i];
	}

	public void add(long time) {
	// May need to store a new time offset
	int n = offsets.length;
	if (n == 0 \|\| time - offsets[n - 1] > Integer.MAX_VALUE) {
	// Grow offset and indices arrays and store new offset
	offsets = Arrays.copyOf(offsets, n + 1);
	offsets[n] = time;
	indices = Arrays.copyOf(indices, n + 1);
	indices[n] = size;
	}

	// May need to extend the array size
	if (rtimes.length == size) {
	rtimes = (int[])extendArray(rtimes);
	}

	// Store the time
	rtimes[size] = (int)(time - offsets[offsets.length - 1]);
	size++;
	}
	}

	private static class Sequence {
	String key;
	String name;
	Color color;
	boolean isPlotted;
	Stroke transitionStroke = null;

	// Values are stored in an int[] if all values will fit,
	// otherwise in a long[]. An int can represent up to 2 GB.
	// Use a random start size, so all arrays won't need to
	// be grown during the same update interval
	Object values =
	new byte[ARRAY_SIZE_INCREMENT + (int)(Math.random() * 100)];

	// Number of stored values
	int size = 0;

	public Sequence(String key) {
	this.key = key;
	}

	/**
	* Returns the value at index i
	*/
	public long value(int i) {
	return Array.getLong(values, i);
	}

	public void add(long value) {
	// May need to switch to a larger array type
	if ((values instanceof byte[] \|\|
	values instanceof short[] \|\|
	values instanceof int[]) &&
	value > Integer.MAX_VALUE) {
	long[] la = new long[Array.getLength(values)];
	for (int i = 0; i < size; i++) {
	la[i] = Array.getLong(values, i);
	}
	values = la;
	} else if ((values instanceof byte[] \|\|
	values instanceof short[]) &&
	value > Short.MAX_VALUE) {
	int[] ia = new int[Array.getLength(values)];
	for (int i = 0; i < size; i++) {
	ia[i] = Array.getInt(values, i);
	}
	values = ia;
	} else if (values instanceof byte[] &&
	value > Byte.MAX_VALUE) {
	short[] sa = new short[Array.getLength(values)];
	for (int i = 0; i < size; i++) {
	sa[i] = Array.getShort(values, i);
	}
	values = sa;
	}

	// May need to extend the array size
	if (Array.getLength(values) == size) {
	values = extendArray(values);
	}

	// Store the value
	if (values instanceof long[]) {
	((long[])values)[size] = value;
	} else if (values instanceof int[]) {
	((int[])values)[size] = (int)value;
	} else if (values instanceof short[]) {
	((short[])values)[size] = (short)value;
	} else {
	((byte[])values)[size] = (byte)value;
	}
	size++;
	}
	}

	// Can be overridden by subclasses
	long getValue() {
	return 0;
	}

	long getLastTimeStamp() {
	return times.time(times.size - 1);
	}

	long getLastValue(String key) {
	Sequence seq = getSequence(key);
	return (seq != null && seq.size > 0) ? seq.value(seq.size - 1) : 0L;
	}


	// Called on EDT
	public void propertyChange(PropertyChangeEvent ev) {
	String prop = ev.getPropertyName();

	if (prop == JConsoleContext.CONNECTION_STATE_PROPERTY) {
	ConnectionState newState = (ConnectionState)ev.getNewValue();

	switch (newState) {
	case DISCONNECTED:
	synchronized(this) {
	long time = System.currentTimeMillis();
	times.add(time);
	for (Sequence seq : seqs) {
	seq.add(Long.MIN_VALUE);
	}
	}
	break;
	}
	}
	}

	private static class SaveDataFileChooser extends JFileChooser {
	private static final long serialVersionUID = -5182890922369369669L;
	SaveDataFileChooser() {
	setFileFilter(new FileNameExtensionFilter("CSV file", "csv"));
	}

	@Override
	public void approveSelection() {
	File file = getSelectedFile();
	if (file != null) {
	FileFilter filter = getFileFilter();
	if (filter != null && filter instanceof FileNameExtensionFilter) {
	String[] extensions =
	((FileNameExtensionFilter)filter).getExtensions();

	boolean goodExt = false;
	for (String ext : extensions) {
	if (file.getName().toLowerCase().endsWith("." + ext.toLowerCase())) {
	goodExt = true;
	break;
	}
	}
	if (!goodExt) {
	file = new File(file.getParent(),
	file.getName() + "." + extensions[0]);
	}
	}

	if (file.exists()) {
	String okStr = Messages.FILE_CHOOSER_FILE_EXISTS_OK_OPTION;
	String cancelStr = Messages.FILE_CHOOSER_FILE_EXISTS_CANCEL_OPTION;
	int ret =
	JOptionPane.showOptionDialog(this,
	Resources.format(Messages.FILE_CHOOSER_FILE_EXISTS_MESSAGE,
	file.getName()),
	Messages.FILE_CHOOSER_FILE_EXISTS_TITLE,
	JOptionPane.OK_CANCEL_OPTION,
	JOptionPane.WARNING_MESSAGE,
	null,
	new Object[] { okStr, cancelStr },
	okStr);
	if (ret != JOptionPane.OK_OPTION) {
	return;
	}
	}
	setSelectedFile(file);
	}
	super.approveSelection();
	}
	}

	@Override
	public AccessibleContext getAccessibleContext() {
	if (accessibleContext == null) {
	accessibleContext = new AccessiblePlotter();
	}
	return accessibleContext;
	}

	protected class AccessiblePlotter extends AccessibleJComponent {
	private static final long serialVersionUID = -3847205410473510922L;
	protected AccessiblePlotter() {
	setAccessibleName(Messages.PLOTTER_ACCESSIBLE_NAME);
	}

	@Override
	public String getAccessibleName() {
	String name = super.getAccessibleName();

	if (seqs.size() > 0 && seqs.get(0).size > 0) {
	String keyValueList = "";
	for (Sequence seq : seqs) {
	if (seq.isPlotted) {
	String value = "null";
	if (seq.size > 0) {
	if (unit == Unit.BYTES) {
	value = Resources.format(Messages.SIZE_BYTES, seq.value(seq.size - 1));
	} else {
	value =
	getFormattedValue(seq.value(seq.size - 1), false) +
	((unit == Unit.PERCENT) ? "%" : "");
	}
	}
	// Assume format string ends with newline
	keyValueList +=
	Resources.format(Messages.PLOTTER_ACCESSIBLE_NAME_KEY_AND_VALUE,
	seq.key, value);
	}
	}
	name += "\n" + keyValueList + ".";
	} else {
	name += "\n" + Messages.PLOTTER_ACCESSIBLE_NAME_NO_DATA;
	}
	return name;
	}

	@Override
	public AccessibleRole getAccessibleRole() {
	return AccessibleRole.CANVAS;
	}
	}
	}

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