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| public class DynamicImageController {
private StreamedContent chart;
private StreamedContent image;
private static final Logger logger = Logger.getLogger(DynamicImageController.class.getName());
public DynamicImageController() {
//Chart
try {
JFreeChart jfreechart = ChartFactory.createGanttChart(
"Gantt Chart Demo", // chart title
"Task", // domain axis label
"Date", // range axis label
createDataset(), // data
true, // include legend
true, // tooltips
false // urls
);
File chartFile = new File("dynamichart");
ChartUtilities.saveChartAsPNG(chartFile, jfreechart, 375, 300);
chart = new DefaultStreamedContent(new FileInputStream(chartFile), "image/png");
} catch (Exception e) {
logger.severe(e.getMessage());
}
}
public StreamedContent getImage() {
return image;
}
public void setImage(StreamedContent image) {
this.image = image;
}
public StreamedContent getChart() {
return chart;
}
public void setChart(StreamedContent chart) {
this.chart = chart;
}
private static Date date(final int day, final int month, final int year) {
final Calendar calendar = Calendar.getInstance();
calendar.set(year, month, day);
final Date result = calendar.getTime();
return result;
}
private IntervalCategoryDataset createDataset() {
final TaskSeries s1 = new TaskSeries("Scheduled");
s1.add(new Task("Write Proposal",
new SimpleTimePeriod(date(1, Calendar.APRIL, 2001),
date(5, Calendar.APRIL, 2001))));
s1.add(new Task("Obtain Approval",
new SimpleTimePeriod(date(9, Calendar.APRIL, 2001),
date(9, Calendar.APRIL, 2001))));
s1.add(new Task("Requirements Analysis",
new SimpleTimePeriod(date(10, Calendar.APRIL, 2001),
date(5, Calendar.MAY, 2001))));
s1.add(new Task("Design Phase",
new SimpleTimePeriod(date(6, Calendar.MAY, 2001),
date(30, Calendar.MAY, 2001))));
s1.add(new Task("Design Signoff",
new SimpleTimePeriod(date(2, Calendar.JUNE, 2001),
date(2, Calendar.JUNE, 2001))));
s1.add(new Task("Alpha Implementation",
new SimpleTimePeriod(date(3, Calendar.JUNE, 2001),
date(31, Calendar.JULY, 2001))));
s1.add(new Task("Design Review",
new SimpleTimePeriod(date(1, Calendar.AUGUST, 2001),
date(8, Calendar.AUGUST, 2001))));
s1.add(new Task("Revised Design Signoff",
new SimpleTimePeriod(date(10, Calendar.AUGUST, 2001),
date(10, Calendar.AUGUST, 2001))));
s1.add(new Task("Beta Implementation",
new SimpleTimePeriod(date(12, Calendar.AUGUST, 2001),
date(12, Calendar.SEPTEMBER, 2001))));
s1.add(new Task("Testing",
new SimpleTimePeriod(date(13, Calendar.SEPTEMBER, 2001),
date(31, Calendar.OCTOBER, 2001))));
s1.add(new Task("Final Implementation",
new SimpleTimePeriod(date(1, Calendar.NOVEMBER, 2001),
date(15, Calendar.NOVEMBER, 2001))));
s1.add(new Task("Signoff",
new SimpleTimePeriod(date(28, Calendar.NOVEMBER, 2001),
date(30, Calendar.NOVEMBER, 2001))));
final TaskSeries s2 = new TaskSeries("Actual");
s2.add(new Task("Write Proposal",
new SimpleTimePeriod(date(1, Calendar.APRIL, 2001),
date(5, Calendar.APRIL, 2001))));
s2.add(new Task("Obtain Approval",
new SimpleTimePeriod(date(9, Calendar.APRIL, 2001),
date(9, Calendar.APRIL, 2001))));
s2.add(new Task("Requirements Analysis",
new SimpleTimePeriod(date(10, Calendar.APRIL, 2001),
date(15, Calendar.MAY, 2001))));
s2.add(new Task("Design Phase",
new SimpleTimePeriod(date(15, Calendar.MAY, 2001),
date(17, Calendar.JUNE, 2001))));
s2.add(new Task("Design Signoff",
new SimpleTimePeriod(date(30, Calendar.JUNE, 2001),
date(30, Calendar.JUNE, 2001))));
s2.add(new Task("Alpha Implementation",
new SimpleTimePeriod(date(1, Calendar.JULY, 2001),
date(12, Calendar.SEPTEMBER, 2001))));
s2.add(new Task("Design Review",
new SimpleTimePeriod(date(12, Calendar.SEPTEMBER, 2001),
date(22, Calendar.SEPTEMBER, 2001))));
s2.add(new Task("Revised Design Signoff",
new SimpleTimePeriod(date(25, Calendar.SEPTEMBER, 2001),
date(27, Calendar.SEPTEMBER, 2001))));
s2.add(new Task("Beta Implementation",
new SimpleTimePeriod(date(27, Calendar.SEPTEMBER, 2001),
date(30, Calendar.OCTOBER, 2001))));
s2.add(new Task("Testing",
new SimpleTimePeriod(date(31, Calendar.OCTOBER, 2001),
date(17, Calendar.NOVEMBER, 2001))));
s2.add(new Task("Final Implementation",
new SimpleTimePeriod(date(18, Calendar.NOVEMBER, 2001),
date(5, Calendar.DECEMBER, 2001))));
s2.add(new Task("Signoff",
new SimpleTimePeriod(date(10, Calendar.DECEMBER, 2001),
date(11, Calendar.DECEMBER, 2001))));
final TaskSeriesCollection collection = new TaskSeriesCollection();
collection.add(s1);
collection.add(s2);
return collection;
}
} |
