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

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Here is the source code for ws.moor.bt.gui.charts.OpenConnections.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.DateAxis;
import org.jfree.chart.plot.XYPlot;
import org.jfree.data.time.TimeSeriesCollection;
import org.jfree.data.xy.XYDataset;
import org.jfree.ui.RectangleInsets;
import ws.moor.bt.stats.CounterRepository;

import javax.swing.JPanel;
import java.awt.BorderLayout;
import java.awt.Color;
import java.text.SimpleDateFormat;

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

    private final JFreeChart chart;

    private final CounterStatisticsDataSource incomingSource;
    private final CounterStatisticsDataSource outgoingSource;
    private final CounterStatisticsDataSource pendingSource;

    public OpenConnections(CounterRepository counterRepository) {
        super();
        incomingSource = new CounterStatisticsDataSource(
                counterRepository.getStatistics("network.connections.in")) {
            protected double getValueToShowAt(long time) {
                return statistics.getValueAt(time);
            }
        };
        outgoingSource = new CounterStatisticsDataSource(
                counterRepository.getStatistics("network.connections.out")) {
            protected double getValueToShowAt(long time) {
                return statistics.getValueAt(time);
            }
        };
        pendingSource = new CounterStatisticsDataSource(
                counterRepository.getStatistics("network.connections.pending")) {
            protected double getValueToShowAt(long time) {
                return statistics.getValueAt(time);
            }
        };
        chart = createChart(getTimeSeriesCollection());
        setLayout(new BorderLayout());
        add(new ChartPanel(chart), BorderLayout.CENTER);
    }

    private TimeSeriesCollection getTimeSeriesCollection() {
        TimeSeriesCollection dataset = new TimeSeriesCollection();
        dataset.addSeries(incomingSource.getTimeSeries());
        dataset.addSeries(outgoingSource.getTimeSeries());
        dataset.addSeries(pendingSource.getTimeSeries());
        return dataset;
    }

    private JFreeChart createChart(XYDataset dataset) {
        JFreeChart chart = ChartFactory.createTimeSeriesChart("Open Connections", "Time", "Connections", dataset,
                true, false, false);
        chart.setBackgroundPaint(Color.white);

        XYPlot plot = (XYPlot) chart.getPlot();
        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.setDomainCrosshairVisible(true);
        plot.setRangeCrosshairVisible(true);

        DateAxis axis = (DateAxis) plot.getDomainAxis();
        axis.setDateFormatOverride(new SimpleDateFormat("HH:mm:ss"));

        return chart;
    }

    public void maintain() {
        incomingSource.update();
        outgoingSource.update();
        pendingSource.update();
    }
}