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1
4 package com.tc.admin;
5
6 import java.awt.Color  ;
7 import java.text.SimpleDateFormat ;
8 import org.jfree.chart.ChartFactory;
9 import org.jfree.chart.JFreeChart;
10 import org.jfree.chart.axis.DateAxis;
11 import org.jfree.chart.plot.XYPlot;
12 import org.jfree.chart.renderer.xy.XYItemRenderer;
13 import org.jfree.chart.renderer.xy.XYLineAndShapeRenderer;
14 import org.jfree.data.time.TimeSeries;
15 import org.jfree.data.time.TimeSeriesCollection;
16 import org.jfree.data.xy.XYDataset;
17 import org.jfree.ui.RectangleInsets;
18
19 public class DemoChartFactory {
20 public static JFreeChart getChart(TimeSeries ts) {
21 XYDataset dataset = createDataset(ts);
22 return createChart(dataset);
23 }
24
25 private static JFreeChart createChart(XYDataset dataset) {
26 JFreeChart chart =
27 ChartFactory.createTimeSeriesChart(
28 "Transaction Rate",
29 "Time",
30 "Txn Per Second",
31 dataset,
32 true,
33 true,
34 false);
35
36 chart.setBackgroundPaint(Color.white);
37
38 XYPlot plot = (XYPlot)chart.getPlot();
39
40 plot.setBackgroundPaint(Color.lightGray);
41 plot.setDomainGridlinePaint(Color.white);
42 plot.setRangeGridlinePaint(Color.white);
43 plot.setAxisOffset(new RectangleInsets(5.0, 5.0, 5.0, 5.0));
44 plot.setDomainCrosshairVisible(true);
45 plot.setRangeCrosshairVisible(true);
46
47 XYItemRenderer r = plot.getRenderer();
48
49 if(r instanceof XYLineAndShapeRenderer) {
50 XYLineAndShapeRenderer renderer = (XYLineAndShapeRenderer)r;
51
52 renderer.setBaseShapesVisible(true);
53 renderer.setBaseShapesFilled(true);
54 }
55
56 DateAxis axis = (DateAxis) plot.getDomainAxis();
57 axis.setDateFormatOverride(new SimpleDateFormat ("kk:mm:ss"));
58
59 return chart;
60 }
61
62 private static XYDataset createDataset(TimeSeries s1) {
63 TimeSeriesCollection dataset = new TimeSeriesCollection();
64
65 dataset.addSeries(s1);
66
67 dataset.setDomainIsPointsInTime(true);
68
69 return dataset;
70 }
71 }
72 |
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