001    /*
002     * Sonar, open source software quality management tool.
003     * Copyright (C) 2008-2012 SonarSource
004     * mailto:contact AT sonarsource DOT com
005     *
006     * Sonar is free software; you can redistribute it and/or
007     * modify it under the terms of the GNU Lesser General Public
008     * License as published by the Free Software Foundation; either
009     * version 3 of the License, or (at your option) any later version.
010     *
011     * Sonar is distributed in the hope that it will be useful,
012     * but WITHOUT ANY WARRANTY; without even the implied warranty of
013     * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
014     * Lesser General Public License for more details.
015     *
016     * You should have received a copy of the GNU Lesser General Public
017     * License along with Sonar; if not, write to the Free Software
018     * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02
019     */
020    package org.sonar.plugins.core.charts;
021    
022    import org.apache.commons.lang.StringUtils;
023    import org.jfree.chart.axis.CategoryAxis;
024    import org.jfree.chart.axis.NumberAxis;
025    import org.jfree.chart.plot.CategoryPlot;
026    import org.jfree.chart.plot.Plot;
027    import org.jfree.chart.renderer.category.AreaRenderer;
028    import org.jfree.data.category.DefaultCategoryDataset;
029    import org.sonar.api.charts.AbstractChart;
030    import org.sonar.api.charts.ChartParameters;
031    
032    import java.text.NumberFormat;
033    
034    public class DistributionAreaChart extends AbstractChart {
035      private static final String PARAM_COLORS = "c";
036    
037      public String getKey() {
038        return "distarea";
039      }
040    
041      @Override
042      protected Plot getPlot(ChartParameters params) {
043        DefaultCategoryDataset dataset = createDataset(params);
044    
045        CategoryAxis domainAxis = new CategoryAxis();
046        domainAxis.setCategoryMargin(0.0);
047        domainAxis.setLowerMargin(0.0);
048        domainAxis.setUpperMargin(0.0);
049    
050        NumberAxis rangeAxis = new NumberAxis();
051        rangeAxis.setNumberFormatOverride(NumberFormat.getIntegerInstance(params.getLocale()));
052        rangeAxis.setStandardTickUnits(NumberAxis.createIntegerTickUnits());
053    
054        AreaRenderer renderer = new AreaRenderer();
055        CategoryPlot plot = new CategoryPlot(dataset, domainAxis, rangeAxis, renderer);
056        plot.setForegroundAlpha(0.5f);
057        plot.setDomainGridlinesVisible(true);
058        configureColors(dataset, plot, params.getValues(PARAM_COLORS, ","));
059        return plot;
060      }
061    
062      private DefaultCategoryDataset createDataset(ChartParameters params) {
063        DefaultCategoryDataset dataset = new DefaultCategoryDataset();
064    
065        String[] series = params.getValues("v", "|", true);
066        int index = 0;
067        while (index < series.length) {
068          String[] pairs = StringUtils.split(series[index], ";");
069          if (pairs.length == 0) {
070            dataset.addValue((Number)0.0, index, "0");
071    
072          } else {
073            for (String pair : pairs) {
074              String[] keyValue = StringUtils.split(pair, "=");
075              double val = Double.parseDouble(keyValue[1]);
076              dataset.addValue((Number) val, index, keyValue[0]);
077            }
078          }
079          index++;
080        }
081        return dataset;
082      }
083    }