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.server.charts.deprecated;
021
022 import org.jfree.chart.JFreeChart;
023 import org.jfree.chart.axis.DateAxis;
024 import org.jfree.chart.axis.DateTickUnit;
025 import org.jfree.chart.axis.NumberAxis;
026 import org.jfree.chart.plot.XYPlot;
027 import org.jfree.chart.renderer.xy.StandardXYItemRenderer;
028 import org.jfree.chart.title.TextTitle;
029 import org.jfree.data.xy.XYSeries;
030 import org.jfree.data.xy.XYSeriesCollection;
031 import org.jfree.ui.RectangleInsets;
032
033 import java.awt.image.BufferedImage;
034 import java.io.IOException;
035 import java.util.Map;
036 import java.util.StringTokenizer;
037
038 public class SparkLinesChart extends BaseChartWeb implements DeprecatedChart {
039
040 private XYSeriesCollection dataset = null;
041 private DateAxis x = null;
042 private NumberAxis y = null;
043 private StandardXYItemRenderer renderer = null;
044
045 public SparkLinesChart(Map<String, String> params) {
046 super(params);
047 jfreechart = new JFreeChart(null, TextTitle.DEFAULT_FONT, new XYPlot(), false);
048 }
049
050 @Override
051 protected BufferedImage getChartImage() throws IOException {
052 configure();
053 return getBufferedImage(jfreechart);
054 }
055
056 private void configure() {
057 configureChart(jfreechart, false);
058 configureXAxis();
059 configureYAxis();
060 configureRenderer();
061 configureDataset();
062 configurePlot();
063 applyParams();
064 }
065
066 private void configureRenderer() {
067 renderer = new StandardXYItemRenderer(StandardXYItemRenderer.LINES);
068 }
069
070 private void configureYAxis() {
071 y = new NumberAxis();
072 y.setTickLabelsVisible(false);
073 y.setTickMarksVisible(false);
074 y.setAxisLineVisible(false);
075 y.setNegativeArrowVisible(false);
076 y.setPositiveArrowVisible(false);
077 y.setVisible(false);
078 }
079
080 private void configureXAxis() {
081 x = new DateAxis();
082 x.setTickUnit(new DateTickUnit(DateTickUnit.MONTH, 1));
083 x.setTickLabelsVisible(false);
084 x.setTickMarksVisible(false);
085 x.setAxisLineVisible(false);
086 x.setNegativeArrowVisible(false);
087 x.setPositiveArrowVisible(false);
088 x.setVisible(false);
089 }
090
091 private void configureDataset() {
092 dataset = new XYSeriesCollection();
093 }
094
095 private void configurePlot() {
096 XYPlot plot = (XYPlot) jfreechart.getPlot();
097 plot.setInsets(RectangleInsets.ZERO_INSETS);
098 plot.setDataset(dataset);
099 plot.setDomainAxis(x);
100 plot.setDomainGridlinesVisible(false);
101 plot.setDomainCrosshairVisible(false);
102 plot.setRangeGridlinesVisible(false);
103 plot.setRangeCrosshairVisible(false);
104 plot.setRangeAxis(y);
105 plot.setRenderer(renderer);
106 plot.setBackgroundAlpha(0.0f);
107 }
108
109 private void applyParams() {
110 applyCommonParams();
111
112 configureColors(params.get(CHART_PARAM_COLORS), renderer);
113 addMeasures(params.get(CHART_PARAM_VALUES));
114
115 // -- Plot
116 XYPlot plot = (XYPlot) jfreechart.getPlot();
117 plot.setOutlineVisible(isParamValueValid(params.get(CHART_PARAM_OUTLINE_VISIBLE)) && Boolean.getBoolean(params.get(CHART_PARAM_OUTLINE_VISIBLE)));
118 }
119
120 private void addMeasures(String values) {
121 double min = Double.MAX_VALUE;
122 double max = Double.MIN_VALUE;
123 XYSeries series1 = new XYSeries("");
124 if (values != null && values.length() > 0) {
125 StringTokenizer st = new StringTokenizer(values, ",");
126 while (st.hasMoreTokens()) {
127 double vX = convertParamToDouble(st.nextToken());
128 double vY = 0.0;
129 if (st.hasMoreTokens()) {
130 vY = convertParamToDouble(st.nextToken());
131 }
132 series1.add(vX, vY);
133
134 min = (vY < min ? vY : min);
135 max = (vY > max ? vY : max);
136 }
137 dataset.addSeries(series1);
138 y.setRange(min-1, max+1);
139 }
140 }
141
142 }