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

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Here is the source code for ws.moor.bt.gui.charts.RemotePeerCompletion.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.plot.PlotOrientation;
import org.jfree.chart.plot.XYPlot;
import org.jfree.data.statistics.HistogramDataset;
import org.jfree.data.statistics.HistogramType;
import org.jfree.ui.RectangleInsets;
import ws.moor.bt.downloader.TorrentDownload;
import ws.moor.bt.network.BitTorrentConnection;
import ws.moor.bt.storage.BitField;
import ws.moor.bt.util.CollectionUtils;

import javax.swing.JPanel;
import java.awt.BorderLayout;
import java.awt.Color;
import java.util.List;

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

    private final JFreeChart chart;
    private final TorrentDownload download;

    public RemotePeerCompletion(TorrentDownload download) {
        super();
        this.download = download;

        chart = createChart(getDataSet());
        setLayout(new BorderLayout());
        ChartPanel panel = new ChartPanel(chart, false, true, false, false, false);
        panel.setMouseZoomable(false);
        add(panel, BorderLayout.CENTER);
    }

    private HistogramDataset getDataSet() {
        HistogramDataset dataset = new HistogramDataset();
        dataset.setType(HistogramType.FREQUENCY);

        List<Double> values = CollectionUtils.mapNullRemoves(download.getAllValidConnections(),
                new CollectionUtils.Function<BitTorrentConnection, Double>() {
                    public Double evaluate(BitTorrentConnection connection) {
                        BitField bitField = connection.getRemoteBitField();
                        if (bitField == null || !connection.isOpen()) {
                            return null;
                        }
                        return 100.0 * bitField.getAvailablePieceCount() / bitField.getPieceCount();
                    }
                });

        dataset.addSeries("Completion", CollectionUtils.toArray(values), 50, 0.0, 100.0);
        return dataset;
    }

    private JFreeChart createChart(HistogramDataset dataset) {

        JFreeChart chart = ChartFactory.createHistogram("Remote Peer Completion", "Completion %", "Peers", dataset,
                PlotOrientation.VERTICAL, false, false, false);
        chart.setBackgroundPaint(Color.white);

        XYPlot plot = chart.getXYPlot();
        plot.setBackgroundPaint(Color.lightGray);
        plot.setDomainGridlinePaint(Color.white);
        plot.setRangeGridlinePaint(Color.white);
        plot.setAxisOffset(new RectangleInsets(5.0, 5.0, 5.0, 5.0));
        plot.setRangeCrosshairVisible(true);

        plot.getDomainAxis().setAutoRange(false);
        plot.getDomainAxis().setRange(0.0, 100.0);

        return chart;
    }

    public void maintain() {
        chart.getXYPlot().setDataset(getDataSet());
    }
}