org.sonar.server.charts.deprecated.CustomBarChart.java Source code

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Here is the source code for org.sonar.server.charts.deprecated.CustomBarChart.java

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/*
 * Sonar, open source software quality management tool.
 * Copyright (C) 2008-2012 SonarSource
 * mailto:contact AT sonarsource DOT com
 *
 * Sonar is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 3 of the License, or (at your option) any later version.
 *
 * Sonar 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
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with Sonar; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02
 */
package org.sonar.server.charts.deprecated;

import org.jfree.chart.plot.CategoryPlot;
import org.jfree.data.category.DefaultCategoryDataset;
import org.jfree.ui.RectangleInsets;

import java.awt.*;
import java.awt.image.BufferedImage;
import java.io.IOException;
import java.util.Map;
import java.util.StringTokenizer;

public class CustomBarChart extends BarChart {

    private CustomBarRenderer renderer = null;

    public CustomBarChart(Map<String, String> params) {
        super(params);
    }

    @Override
    protected BufferedImage getChartImage() throws IOException {
        configure();
        return getBufferedImage(jfreechart);
    }

    @Override
    protected void configure() {
        configureChart(jfreechart, false);
        configureCategoryDataset();
        configureCategoryAxis();
        configureRenderer();
        configureRangeAxis();
        configureCategoryPlot();
        applyParams();
    }

    @Override
    protected void configureCategoryDataset() {
        dataset = new DefaultCategoryDataset();
    }

    @Override
    protected void configureRenderer() {
        renderer = new CustomBarRenderer(null);
        renderer.setItemMargin(0.0);
        renderer.setDrawBarOutline(false);
    }

    @Override
    protected void configureCategoryPlot() {
        CategoryPlot plot = jfreechart.getCategoryPlot();
        plot.setNoDataMessage(DEFAULT_MESSAGE_NODATA);
        plot.setInsets(RectangleInsets.ZERO_INSETS); // To remove inner space around chart
        plot.setDataset(dataset);
        plot.setDomainAxis(categoryAxis);
        plot.setRenderer(renderer);
        plot.setRangeAxis(numberAxis);
    }

    protected void applyParams() {
        applyCommonParams();
        applyCommomParamsBar();

        configureColors(params.get(CHART_PARAM_COLORS));
        addMeasures(params.get(CHART_PARAM_VALUES));
    }

    private void configureColors(String colorsParam) {
        Paint[] colors = CustomBarRenderer.COLORS;
        if (colorsParam != null && colorsParam.length() > 0) {
            StringTokenizer stColors = new StringTokenizer(colorsParam, ",");
            colors = new Paint[stColors.countTokens()];
            int i = 0;
            while (stColors.hasMoreTokens()) {
                colors[i] = Color.decode("0x" + stColors.nextToken());
                i++;
            }
        }

        renderer.setColors(colors);
    }

    private void addMeasures(String values) {
        if (values != null && values.length() > 0) {
            // Values
            StringTokenizer stValues = new StringTokenizer(values, ",");
            int nbValues = stValues.countTokens();

            // Categories
            String categoriesParam = params.get(CHART_PARAM_CATEGORIES);
            String[] categoriesSplit = null;
            if (categoriesParam != null && categoriesParam.length() > 0) {
                categoriesSplit = categoriesParam.split(",");
            } else {
                categoriesSplit = new String[nbValues];
                for (int i = 0; i < nbValues; i++) {
                    categoriesSplit[i] = DEFAULT_NAME_CATEGORY + i;
                }
            }

            // Series
            String[] seriesSplit = { DEFAULT_NAME_SERIE };
            int nbSeries = 1;

            for (String currentCategory : categoriesSplit) {
                for (int iSeries = 0; iSeries < nbSeries; iSeries++) {
                    String currentSerie = seriesSplit[iSeries];
                    double currentValue = 0.0;
                    if (stValues.hasMoreTokens()) {
                        try {
                            currentValue = Double.parseDouble(stValues.nextToken());
                        } catch (NumberFormatException e) {
                            // ignore
                        }
                    }
                    dataset.addValue(currentValue, currentSerie, currentCategory);
                }
            }
        }
    }

}