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public class BarChart extends ApplicationFrame {
HashMap<String, ArrayList> lstPoints;
private int hauteur = 350;
int largeur = 25;
/**
* Creates a new demo instance.
*
* @param title the frame title.
* @throws Exception
*/
public BarChart( HashMap<String, ArrayList> lstPoints, String title, HttpServletRequest p_request, HttpServletResponse p_response, int size) throws Exception {
super(title);
this.lstPoints = lstPoints;
int i = lstPoints.size();
final CategoryDataset dataset = createDatasetIndex(lstPoints);
final JFreeChart chart = createChart(dataset, p_request, p_response);
ChartRenderingInfo info = new ChartRenderingInfo();
try {
String filename = ServletUtilities.saveChartAsPNG(chart,
largeur*size*6, hauteur, info,p_request.getSession());
Graphe graphe = this.initImage(p_request, info, filename);
p_request.setAttribute("grapheIndex", graphe);
} catch (IOException e) {
throw new Exception(e.getMessage());
}
}
private Graphe initImage(HttpServletRequest request,
ChartRenderingInfo info, String filename) {
String sMap = ChartUtilities.getImageMap(filename, info);
String src = request.getContextPath()
+ "/servlet/DisplayChart?filename=" + filename;
String useMap = "#" + filename;
Graphe graphe = new Graphe();
graphe.setMap(sMap);
graphe.setSrc(src);
graphe.setUseMap(useMap);
return graphe;
}
/**
* Returns a sample dataset.
*
* @return The dataset.
*/
private CategoryDataset createDatasetIndex(HashMap<String, ArrayList> lstPoints) {
final DefaultCategoryDataset dataset = new DefaultCategoryDataset();
for(String key: lstPoints.keySet()){
ArrayList<IndexJournaliers> list = new ArrayList<IndexJournaliers>();
list = lstPoints.get(key);
for(int i=0; i<list.size(); i++){
IndexJournaliers lpe = list.get(i);
dataset.addValue(lpe.getActiveEnergyImportTarif1(),"Tarif 1",lpe.getDateAndTime());
dataset.addValue(lpe.getActiveEnergyImportTarif2(),"Tarif 2",lpe.getDateAndTime());
dataset.addValue(lpe.getActiveEnergyImportTarif3(),"Tarif 3",lpe.getDateAndTime());
dataset.addValue(lpe.getActiveEnergyImportTarif4(),"Tarif 4",lpe.getDateAndTime());
dataset.addValue(lpe.getActiveEnergyImportTarif5(),"Tarif 5",lpe.getDateAndTime());
dataset.addValue(lpe.getActiveEnergyImportTarif6(),"Tarif 6",lpe.getDateAndTime());
}
}
return dataset;
}
/**
* Creates a sample chart.
*
* @param dataset the dataset.
*
* @return The chart.
*/
private JFreeChart createChart(final CategoryDataset dataset , HttpServletRequest p_request, HttpServletResponse p_response) {
// create the chart...
final JFreeChart chart = ChartFactory.createBarChart(
"", // chart title
"Date", // domain axis label
"kWh", // range axis label
dataset, // data
PlotOrientation.VERTICAL, // orientation
true, // include legend
true, // tooltips?
false // URLs?
);
// NOW DO SOME OPTIONAL CUSTOMISATION OF THE CHART...
// set the background color for the chart...
chart.setBackgroundPaint(Color.white);
// get a reference to the plot for further customisation...
final CategoryPlot plot = chart.getCategoryPlot();
plot.setBackgroundPaint(Color.lightGray);
plot.setDomainGridlinePaint(Color.white);
plot.setRangeGridlinePaint(Color.white);
// set the range axis to display integers only...
final NumberAxis rangeAxis = (NumberAxis) plot.getRangeAxis();
rangeAxis.setStandardTickUnits(NumberAxis.createIntegerTickUnits());
// disable bar outlines...
final BarRenderer renderer = (BarRenderer) plot.getRenderer();
renderer.setDrawBarOutline(false);
final GradientPaint gp0 = new GradientPaint(
0.0f, 0.0f, Color.blue,
0.0f, 0.0f, Color.lightGray
);
final GradientPaint gp1 = new GradientPaint(
0.0f, 0.0f, Color.green,
0.0f, 0.0f, Color.lightGray
);
final GradientPaint gp2 = new GradientPaint(
0.0f, 0.0f, Color.red,
0.0f, 0.0f, Color.lightGray
);
final GradientPaint gp3 = new GradientPaint(
0.0f, 0.0f, Color.CYAN,
0.0f, 0.0f, Color.lightGray
);
final GradientPaint gp4 = new GradientPaint(
0.0f, 0.0f, Color.ORANGE,
0.0f, 0.0f, Color.lightGray
);
final GradientPaint gp5 = new GradientPaint(
0.0f, 0.0f, Color.PINK,
0.0f, 0.0f, Color.lightGray
);
final GradientPaint gp6 = new GradientPaint(
0.0f, 0.0f, Color.MAGENTA,
0.0f, 0.0f, Color.lightGray
);
renderer.setSeriesPaint(0, gp0);
renderer.setSeriesPaint(1, gp1);
renderer.setSeriesPaint(2, gp2);
renderer.setSeriesPaint(3, gp3);
renderer.setSeriesPaint(4, gp4);
renderer.setSeriesPaint(5, gp5);
renderer.setSeriesPaint(6, gp6);
final CategoryAxis domainAxis = plot.getDomainAxis();
domainAxis.setCategoryLabelPositions(
CategoryLabelPositions.createUpRotationLabelPositions(Math.PI / 6.0)
);
// OPTIONAL CUSTOMISATION COMPLETED.
return chart;
}
} |
