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 * Copyright (c) 2004, 2012, 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

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package sun.tools.jconsole.inspector;

import java.awt.*;

import java.awt.event.*;

import java.util.*;

import java.util.Timer;

import javax.swing.*;

import sun.tools.jconsole.*;

@SuppressWarnings("serial")

public class XPlottingViewer extends PlotterPanel implements ActionListener {

    // TODO: Make number of decimal places customizable

    private static final int PLOTTER_DECIMALS = 4;

    private JButton plotButton;

    // The plotter cache holds Plotter instances for the various attributes

    private static HashMap<String, XPlottingViewer> plotterCache =

        new HashMap<String, XPlottingViewer>();

     private static HashMap<String, Timer> timerCache =

         new HashMap<String, Timer>();

    private MBeansTab tab;

    private String attributeName;

    private String key;

    private JTable table;

    private XPlottingViewer(String key,

                            XMBean mbean,

                            String attributeName,

                            Object value,

                            JTable table,

                            MBeansTab tab) {

        super(null);

        this.tab = tab;

        this.key = key;

        this.table = table;

        this.attributeName = attributeName;

        Plotter plotter = createPlotter(mbean, attributeName, key, table);

        setupDisplay(plotter);

    }

    static void dispose(MBeansTab tab) {

        Iterator<String> it = plotterCache.keySet().iterator();

        while(it.hasNext()) {

            String key = it.next();

            if(key.startsWith(String.valueOf(tab.hashCode()))) {

                it.remove();

            }

        }

        //plotterCache.clear();

        it = timerCache.keySet().iterator();

        while(it.hasNext()) {

            String key = (String) it.next();

            if(key.startsWith(String.valueOf(tab.hashCode()))) {

                Timer t = timerCache.get(key);

                t.cancel();

                it.remove();

            }

        }

    }

    public static boolean isViewableValue(Object value) {

        return (value instanceof Number);

    }

    //Fired by dbl click

    public  static Component loadPlotting(XMBean mbean,

                                          String attributeName,

                                          Object value,

                                          JTable table,

                                          MBeansTab tab) {

        Component comp = null;

        if(isViewableValue(value)) {

            String key = String.valueOf(tab.hashCode()) + " " + String.valueOf(mbean.hashCode()) + " " + mbean.getObjectName().getCanonicalName() + attributeName;

            XPlottingViewer plotter = plotterCache.get(key);

            if(plotter == null) {

                plotter = new XPlottingViewer(key,

                                              mbean,

                                              attributeName,

                                              value,

                                              table,

                                              tab);

                plotterCache.put(key, plotter);

            }

            comp = plotter;

        }

        return comp;

    }

    /*public void paintComponent(Graphics g) {

        super.paintComponent(g);

        setBackground(g.getColor());

        plotter.paintComponent(g);

        }*/

    @Override

    public void actionPerformed(ActionEvent evt) {

        plotterCache.remove(key);

        Timer t = timerCache.remove(key);

        t.cancel();

        ((XMBeanAttributes) table).collapse(attributeName, this);

    }

    //Create plotter instance

    public Plotter createPlotter(final XMBean xmbean,

                                 final String attributeName,

                                 String key,

                                 JTable table) {

        final Plotter plotter = new XPlotter(table, Plotter.Unit.NONE) {

                Dimension prefSize = new Dimension(400, 170);

            @Override

                public Dimension getPreferredSize() {

                    return prefSize;

                }

            @Override

                public Dimension getMinimumSize() {

                    return prefSize;

                }

            };

        plotter.createSequence(attributeName, attributeName, null, true);

        TimerTask timerTask = new TimerTask() {

                public void run() {

                    tab.workerAdd(new Runnable() {

                            public void run() {

                                try {

                                    Number n =

                                        (Number) xmbean.getSnapshotMBeanServerConnection().getAttribute(xmbean.getObjectName(), attributeName);

                                    long v;

                                    if (n instanceof Float || n instanceof Double) {

                                        plotter.setDecimals(PLOTTER_DECIMALS);

                                        double d = (n instanceof Float) ? (Float)n : (Double)n;

                                        v = Math.round(d * Math.pow(10.0, PLOTTER_DECIMALS));

                                    } else {

                                        v = n.longValue();

                                    }

                                    plotter.addValues(System.currentTimeMillis(), v);

                                } catch (Exception ex) {

                                    // Should have a trace logged with proper

                                    // trace mecchanism

                                }

                            }

                        });

                }

            };

        String timerName = "Timer-" + key;

        Timer timer = new Timer(timerName, true);

        timer.schedule(timerTask, 0, tab.getUpdateInterval());

        timerCache.put(key, timer);

        return plotter;

    }

    private void setupDisplay(Plotter plotter) {

        final JPanel buttonPanel = new JPanel();

        final GridBagLayout gbl = new GridBagLayout();

        buttonPanel.setLayout(gbl);

        setLayout(new BorderLayout());

        plotButton = new JButton(Messages.DISCARD_CHART);

        plotButton.addActionListener(this);

        plotButton.setEnabled(true);

        GridBagConstraints buttonConstraints = new GridBagConstraints();

        buttonConstraints.gridx = 0;

        buttonConstraints.gridy = 0;

        buttonConstraints.fill = GridBagConstraints.VERTICAL;

        buttonConstraints.anchor = GridBagConstraints.CENTER;

        gbl.setConstraints(plotButton, buttonConstraints);

        buttonPanel.add(plotButton);

        if (attributeName != null && attributeName.length()!=0) {

            final JPanel plotterLabelPanel = new JPanel();

            final JLabel label = new JLabel(attributeName);

            final GridBagLayout gbl2 = new GridBagLayout();

            plotterLabelPanel.setLayout(gbl2);

            final GridBagConstraints labelConstraints = new GridBagConstraints();

            labelConstraints.gridx = 0;

            labelConstraints.gridy = 0;

            labelConstraints.fill = GridBagConstraints.VERTICAL;

            labelConstraints.anchor = GridBagConstraints.CENTER;

            labelConstraints.ipady = 10;

            gbl2.setConstraints(label, labelConstraints);

            plotterLabelPanel.add(label);

            add(plotterLabelPanel, BorderLayout.NORTH);

        }

        setPlotter(plotter);

        add(buttonPanel, BorderLayout.SOUTH);

        repaint();

    }

}