Java tutorial
/* * Chronos - Copyright (C) 2011 National Board of e-Health (NSI), Denmark (http://www.nsi.dk) * * All source code and information supplied as part of Chronos is * copyright to National Board of e-Health. * * The source code has been released under a dual license - meaning you can * use either licensed version of the library with your code. * * It is released under the LGPL (GNU Lesser General Public License), either * version 2.1 of the License, or (at your option) any later version. A copy * of which can be found at the link below. * http://www.gnu.org/copyleft/lesser.html * * $HeadURL$ * $Id$ */ package org.codehaus.mojo.chronos.chart; import java.text.SimpleDateFormat; import java.util.ResourceBundle; import org.codehaus.mojo.chronos.ReportConfig; import org.codehaus.mojo.chronos.gc.GCSamples; import org.jfree.chart.ChartFactory; import org.jfree.chart.JFreeChart; import org.jfree.data.time.Millisecond; import org.jfree.data.time.TimeSeries; import org.jfree.data.time.TimeSeriesCollection; /** * Source for garbage collection charts. * * @author ksr@lakeside.dk */ public final class SummaryGCChartSource implements ChartSource { private GCSamples samples; public SummaryGCChartSource(GCSamples samples) { this.samples = samples; } public boolean isEnabled(ResourceBundle bundle, ReportConfig config) { return config.isShowgc() && config.isShowsummary(); } public String getFileName(ResourceBundle bundle, ReportConfig config) { return "gc-" + config.getId(); } public JFreeChart getChart(ResourceBundle bundle, ReportConfig config) { String beforeLabel = bundle.getString("chronos.label.gc.before"); String afterLabel = bundle.getString("chronos.label.gc.after"); TimeSeriesCollection dataset1 = new TimeSeriesCollection(); TimeSeries heapBeforeSeries = new TimeSeries(beforeLabel, Millisecond.class); samples.extractHeapBefore(heapBeforeSeries); TimeSeries heapAfterSeries = new TimeSeries(afterLabel, Millisecond.class); samples.extractHeapAfter(heapAfterSeries); dataset1.addSeries(heapBeforeSeries); dataset1.addSeries(heapAfterSeries); TimeSeriesCollection dataset = dataset1; String title = bundle.getString("chronos.label.gc"); String timeLabel = bundle.getString("chronos.label.gc.time"); String valueLabel = bundle.getString("chronos.label.gc.mem"); JFreeChart chart = ChartFactory.createTimeSeriesChart(title, timeLabel, valueLabel, dataset, true, true, false); ChartUtil.setupXYPlot(chart, new SimpleDateFormat("HH:mm:ss")); return chart; } }