Java tutorial
/* * 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.JFreeChart; import org.jfree.chart.axis.CategoryAxis; import org.jfree.chart.axis.NumberAxis; import org.jfree.chart.axis.NumberTickUnit; import org.jfree.chart.plot.CategoryPlot; import org.jfree.chart.plot.PlotOrientation; import org.jfree.chart.renderer.category.BarRenderer; import org.jfree.chart.renderer.category.StackedBarRenderer; import org.jfree.chart.title.TextTitle; import org.jfree.data.category.DefaultCategoryDataset; import org.jfree.ui.RectangleInsets; import java.awt.image.BufferedImage; import java.io.IOException; import java.util.Map; import java.util.StringTokenizer; public class BarChart extends BaseChartWeb implements DeprecatedChart { private BarRenderer renderer = null; protected DefaultCategoryDataset dataset = null; protected CategoryAxis categoryAxis = null; protected NumberAxis numberAxis = null; public BarChart(Map<String, String> params) { super(params); jfreechart = new JFreeChart(null, TextTitle.DEFAULT_FONT, new CategoryPlot(), false); } @Override protected BufferedImage getChartImage() throws IOException { configure(); return getBufferedImage(jfreechart); } protected void configure() { configureChart(jfreechart, false); configureCategoryDataset(); configureCategoryAxis(); configureRenderer(); configureRangeAxis(); configureCategoryPlot(); applyParams(); } 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 configureCategoryDataset() { dataset = new DefaultCategoryDataset(); } protected void configureCategoryAxis() { categoryAxis = new CategoryAxis(); categoryAxis.setLabelFont(DEFAULT_FONT); categoryAxis.setLabelPaint(BASE_COLOR); categoryAxis.setTickLabelFont(DEFAULT_FONT); categoryAxis.setTickLabelPaint(BASE_COLOR); categoryAxis.setVisible(false); } protected void configureRenderer() { if (params.get(BaseChartWeb.CHART_PARAM_TYPE).equals(BaseChartWeb.STACKED_BAR_CHART)) { renderer = new StackedBarRenderer(); } else { renderer = new BarRenderer(); } renderer.setItemMargin(0.0); renderer.setDrawBarOutline(false); } protected void configureRangeAxis() { numberAxis = new NumberAxis(); numberAxis.setLabelFont(DEFAULT_FONT); numberAxis.setLabelPaint(BASE_COLOR); numberAxis.setTickLabelFont(DEFAULT_FONT); numberAxis.setTickLabelPaint(BASE_COLOR); numberAxis.setTickMarksVisible(true); numberAxis.setVisible(false); numberAxis.setStandardTickUnits(NumberAxis.createIntegerTickUnits()); } protected void applyCommomParamsBar() { // -- Plot CategoryPlot plot = jfreechart.getCategoryPlot(); plot.setOrientation(BaseChartWeb.BAR_CHART_VERTICAL.equals(params.get(BaseChartWeb.CHART_PARAM_TYPE)) || BaseChartWeb.BAR_CHART_VERTICAL_CUSTOM.equals(params.get(BaseChartWeb.CHART_PARAM_TYPE)) ? PlotOrientation.VERTICAL : PlotOrientation.HORIZONTAL); plot.setOutlineVisible("y".equals(params.get(BaseChartWeb.CHART_PARAM_OUTLINE_VISIBLE))); plot.setRangeGridlinesVisible( "y".equals(params.get(BaseChartWeb.CHART_PARAM_OUTLINE_RANGEGRIDLINES_VISIBLE))); String insetsParam = params.get(CHART_PARAM_INSETS); if (isParamValueValid(insetsParam)) { double insets = convertParamToDouble(insetsParam); RectangleInsets rectangleInsets = new RectangleInsets(insets, insets, insets, insets); plot.setInsets(rectangleInsets); } // -- Category Axis boolean categoryAxisIsVisible = "y" .equals(params.get(BaseChartWeb.CHART_PARAM_CATEGORIES_AXISMARGIN_VISIBLE)); double categoryAxisUpperMargin = convertParamToDouble( params.get(BaseChartWeb.CHART_PARAM_CATEGORIES_AXISMARGIN_UPPER), DEFAULT_CATEGORIES_AXISMARGIN); double categoryAxisLowerMargin = convertParamToDouble( params.get(BaseChartWeb.CHART_PARAM_CATEGORIES_AXISMARGIN_LOWER), DEFAULT_CATEGORIES_AXISMARGIN); categoryAxis.setVisible(categoryAxisIsVisible); categoryAxis.setTickLabelsVisible(categoryAxisIsVisible); categoryAxis.setLowerMargin(categoryAxisLowerMargin); categoryAxis.setUpperMargin(categoryAxisUpperMargin); // -- Range Axis boolean rangeAxisIsVisible = "y".equals(params.get(BaseChartWeb.CHART_PARAM_RANGEAXIS_VISIBLE)); double rangeAxisUpperMargin = convertParamToDouble( params.get(BaseChartWeb.CHART_PARAM_SERIES_AXISMARGIN_UPPER), DEFAULT_SERIES_AXISMARGIN); double rangeAxisLowerMargin = convertParamToDouble( params.get(BaseChartWeb.CHART_PARAM_SERIES_AXISMARGIN_LOWER), DEFAULT_SERIES_AXISMARGIN); numberAxis.setTickLabelsVisible(rangeAxisIsVisible); numberAxis.setVisible(rangeAxisIsVisible); numberAxis.setLowerMargin(rangeAxisLowerMargin); numberAxis.setUpperMargin(rangeAxisUpperMargin); String rangeMax = params.get(BaseChartWeb.CHART_PARAM_RANGEMAX); if (isParamValueValid(rangeMax)) { double iRangeMax = Double.parseDouble(rangeMax); numberAxis.setRange(0.0, iRangeMax); } String tickUnit = params.get(BaseChartWeb.CHART_PARAM_SERIES_AXISMARGIN_TICKUNIT); if (isParamValueValid(tickUnit)) { numberAxis.setTickUnit(new NumberTickUnit(convertParamToDouble(tickUnit))); } } private void applyParams() { applyCommonParams(); applyCommomParamsBar(); configureColors(params.get(BaseChartWeb.CHART_PARAM_COLORS), renderer); addMeasures(params.get(BaseChartWeb.CHART_PARAM_VALUES)); } 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(BaseChartWeb.CHART_PARAM_CATEGORIES); String[] categoriesSplit; if (categoriesParam != null && categoriesParam.length() > 0) { categoriesSplit = categoriesParam.split(","); } else { categoriesSplit = new String[1]; categoriesSplit[0] = BaseChartWeb.DEFAULT_NAME_CATEGORY; } // Series String seriesParam = params.get(BaseChartWeb.CHART_PARAM_SERIES); String[] seriesSplit = null; if (seriesParam != null && seriesParam.length() > 0) { seriesSplit = seriesParam.split(","); } else { seriesSplit = new String[nbValues]; for (int i = 0; i < nbValues; i++) { seriesSplit[i] = BaseChartWeb.DEFAULT_NAME_SERIE + i; } } for (String currentCategory : categoriesSplit) { for (String currentSerie : seriesSplit) { double currentValue = 0.0; if (stValues.hasMoreTokens()) { try { currentValue = Double.parseDouble(stValues.nextToken()); } catch (NumberFormatException e) { // ignore } } dataset.addValue(currentValue, currentSerie, currentCategory); } } } } }