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.awt.Color; import java.text.SimpleDateFormat; import java.util.ResourceBundle; import org.codehaus.mojo.chronos.ReportConfig; import org.codehaus.mojo.chronos.responsetime.ResponsetimeSamples; import org.jfree.chart.JFreeChart; import org.jfree.chart.axis.AxisLocation; import org.jfree.chart.axis.DateAxis; import org.jfree.chart.plot.CombinedDomainXYPlot; import org.jfree.chart.plot.SeriesRenderingOrder; import org.jfree.chart.plot.XYPlot; import org.jfree.data.time.Millisecond; import org.jfree.data.time.MovingAverage; import org.jfree.data.time.TimeSeries; import org.jfree.data.time.TimeSeriesCollection; /** * This class is responsible for generating throughput charts. * * @author ksr@lakeside.dk */ public final class SummaryThroughputChartSource implements ChartSource { private ResponsetimeSamples samples; public SummaryThroughputChartSource(ResponsetimeSamples samples) { this.samples = samples; } public boolean isEnabled(ResourceBundle bundle, ReportConfig config) { return config.isShowthroughput() && config.isShowsummary(); } public String getFileName(ResourceBundle bundle, ReportConfig config) { return "throughput-" + config.getId(); } public JFreeChart getChart(ResourceBundle bundle, ReportConfig config) { XYPlot throughputPlot = createThroughputPlot(bundle, config); XYPlot threadCountPlot = createThreadCountPlot(bundle, config); String label = bundle.getString("chronos.label.throughput.time"); SimpleDateFormat dateFormat = new SimpleDateFormat("HH:mm:ss"); DateAxis timeAxis = ChartUtil.createTimeAxis(label, dateFormat); CombinedDomainXYPlot combineddomainxyplot = ChartUtil.createCombinedPlot(timeAxis, throughputPlot, threadCountPlot); return new JFreeChart(bundle.getString("chronos.label.throughput"), combineddomainxyplot); } private XYPlot createThroughputPlot(ResourceBundle bundle, ReportConfig config) { TimeSeriesCollection dataset1 = createThroughputDataset(bundle, config); XYPlot throughputPlot = ChartUtil.newPlot(dataset1, bundle.getString("chronos.label.throughput.requests"), true); throughputPlot.setRangeAxisLocation(AxisLocation.BOTTOM_OR_LEFT); throughputPlot.getRenderer().setSeriesPaint(0, Color.GREEN); throughputPlot.getRenderer().setSeriesPaint(1, Color.BLUE); throughputPlot.setSeriesRenderingOrder(SeriesRenderingOrder.FORWARD); double maxAvgThroughput = samples.getMaxAverageThroughput(config.getAverageduration(), config.getResponsetimedivider()); String maxThroughputLabel = bundle.getString("chronos.label.maxaveragethroughput"); ChartUtil.addRangeMarker(throughputPlot, maxThroughputLabel, maxAvgThroughput); return throughputPlot; } private TimeSeriesCollection createThroughputDataset(ResourceBundle bundle, ReportConfig config) { TimeSeriesCollection dataset = new TimeSeriesCollection(); TimeSeries series = samples.createMovingThroughput(bundle.getString("chronos.label.throughput"), config.getResponsetimedivider()); dataset.addSeries(series); int avgDuration = config.getAverageduration(); String label = bundle.getString("chronos.label.average"); TimeSeries averageseries = MovingAverage.createMovingAverage(series, label, avgDuration, 0); dataset.addSeries(averageseries); return dataset; } private XYPlot createThreadCountPlot(ResourceBundle bundle, ReportConfig config) { TimeSeriesCollection dataset2 = createThreadCountdataset(bundle, config); String label = bundle.getString("chronos.label.threadcount.y"); XYPlot threadCountPlot = ChartUtil.newPlot(dataset2, label, false); threadCountPlot.setRangeAxisLocation(AxisLocation.TOP_OR_LEFT); threadCountPlot.getRenderer().setSeriesPaint(0, Color.GRAY); return threadCountPlot; } private TimeSeriesCollection createThreadCountdataset(ResourceBundle bundle, ReportConfig config) { String label = bundle.getString("chronos.label.threadcount"); TimeSeries series = new TimeSeries(label, Millisecond.class); samples.appendThreadCounts(series, config.getThreadcountduration()); TimeSeriesCollection dataset = new TimeSeriesCollection(); dataset.addSeries(series); return dataset; } }