ws.moor.bt.gui.charts.DownloadRatePerPeer.java Source code

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Here is the source code for ws.moor.bt.gui.charts.DownloadRatePerPeer.java

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/*
 * BitThief - A Free Riding BitTorrent Client
 * Copyright (C) 2006 Patrick Moor <patrick@moor.ws>
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.
 *
 * This program 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 for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301,
 * USA.
 */

package ws.moor.bt.gui.charts;

import org.jfree.chart.ChartFactory;
import org.jfree.chart.ChartPanel;
import org.jfree.chart.JFreeChart;
import org.jfree.chart.axis.CategoryAxis;
import org.jfree.chart.axis.CategoryLabelPositions;
import org.jfree.chart.plot.CategoryPlot;
import org.jfree.chart.plot.PlotOrientation;
import org.jfree.data.category.DefaultCategoryDataset;
import ws.moor.bt.stats.CounterRepository;
import ws.moor.bt.stats.CounterStatistics;
import ws.moor.bt.util.SystemTimeSource;
import ws.moor.bt.util.TimeSource;

import javax.swing.JPanel;
import java.awt.BorderLayout;
import java.awt.Color;
import java.util.Map;
import java.util.TreeMap;

/**
 * TODO(pmoor): Javadoc
 */
public class DownloadRatePerPeer extends JPanel implements Maintainable {

    private final CounterRepository counterRepository;

    private final JFreeChart chart;

    private TimeSource timeSource = SystemTimeSource.INSTANCE;

    public DownloadRatePerPeer(CounterRepository counterRepository) {
        super();
        this.counterRepository = counterRepository;

        chart = createChart();
        setLayout(new BorderLayout());
        add(new ChartPanel(chart), BorderLayout.CENTER);
    }

    private JFreeChart createChart() {

        JFreeChart chart = ChartFactory.createBarChart("Top 20 Download Rates", "Remote IP", "KB/s",
                createDataset(), PlotOrientation.VERTICAL, false, false, false);
        chart.setBackgroundPaint(Color.white);

        CategoryPlot plot = chart.getCategoryPlot();
        plot.setBackgroundPaint(Color.lightGray);
        plot.setDomainGridlinePaint(Color.white);
        plot.setRangeGridlinePaint(Color.white);

        CategoryAxis domainAxis = plot.getDomainAxis();
        domainAxis.setCategoryLabelPositions(CategoryLabelPositions.createUpRotationLabelPositions(Math.PI / 2.0));

        return chart;
    }

    private DefaultCategoryDataset createDataset() {
        DefaultCategoryDataset dataset = new DefaultCategoryDataset();

        long now = timeSource.getTime();

        Map<Double, String> rateToKey = new TreeMap<Double, String>();
        for (String key : counterRepository.getKeys("network.rawbytes.in")) {
            CounterStatistics statistics = counterRepository.getStatistics("network.rawbytes.in", key);
            double rate = statistics.getValueAt(now) - statistics.getValueAt(now - 60 * 1000);
            rate /= 60 * 1000;
            rateToKey.put(-rate, key);
        }

        for (Map.Entry<Double, String> entry : rateToKey.entrySet()) {
            dataset.addValue(-entry.getKey(), "dl rate", entry.getValue());
            if (dataset.getColumnCount() >= 20) {
                break;
            }
        }

        return dataset;
    }

    public void maintain() {
        chart.getCategoryPlot().setDataset(createDataset());
    }
}