StatusBScriptlet


1   package net.sf.jasperreports.mysql.reports;
2   
3   import java.awt.Color  ;
4   import java.sql.Timestamp  ;
5   
6   import net.sf.jasperreports.engine.JRDefaultScriptlet;
7   import net.sf.jasperreports.engine.JRRenderable;
8   import net.sf.jasperreports.engine.JRScriptletException;
9   import net.sf.jasperreports.renderers.JCommonDrawableRenderer;
10  
11  import org.jfree.chart.ChartFactory;
12  import org.jfree.chart.JFreeChart;
13  import org.jfree.data.time.Second;
14  import org.jfree.data.time.TimeSeries;
15  import org.jfree.data.time.TimeSeriesCollection;
16  
17  /**
18   *
19   */
20  public class StatusBScriptlet extends JRDefaultScriptlet 
21  {
22  
23      /**
24       *
25       */
26      private TimeSeries bytesTimeSeries = null;
27      private TimeSeries connectionsTimeSeries = null;
28      
29      /**
30       *
31       */
32      public void afterReportInit() throws JRScriptletException
33      {
34          bytesTimeSeries = new TimeSeries("Bytes in/out", Second.class);
35          connectionsTimeSeries = new TimeSeries("Commands", Second.class);
36      }
37  
38      /**
39       *
40       */
41      public void afterDetailEval() throws JRScriptletException
42      {
43          Second second = new Second((Timestamp  )getFieldValue("report_time"));
44          bytesTimeSeries.addOrUpdate(
45              second, 
46              new Long  (
47                  ((Number  )getFieldValue("bytes_received")).longValue() 
48                  + ((Number  )getFieldValue("bytes_sent")).longValue()
49                  )
50              );
51          connectionsTimeSeries.addOrUpdate(
52              second, 
53              (Number  )getFieldValue("connections")
54              );
55      }
56  
57      /**
58       *
59       */
60      public JRRenderable getNetworkChart()
61      {
62          TimeSeriesCollection dataset = new TimeSeriesCollection();
63          dataset.addSeries(bytesTimeSeries);
64          
65          JFreeChart chart = 
66              ChartFactory.createTimeSeriesChart(
67                  "Network traffic", 
68                  "Time", 
69                  "Bytes",
70                  dataset, 
71                  true, 
72                  true, 
73                  false
74                  );
75          
76          chart.setBackgroundPaint(Color.white);
77          
78          return new JCommonDrawableRenderer(chart);
79      }
80  
81      /**
82       *
83       */
84      public JRRenderable getConnectionsChart()
85      {
86          TimeSeriesCollection dataset = new TimeSeriesCollection();
87          dataset.addSeries(connectionsTimeSeries);
88          
89          JFreeChart chart = 
90              ChartFactory.createTimeSeriesChart(
91                  "Connections", 
92                  "Time", 
93                  "Connections",
94                  dataset, 
95                  true, 
96                  true, 
97                  false
98                  );
99          
100         chart.setBackgroundPaint(Color.white);
101         
102         return new JCommonDrawableRenderer(chart);
103     }
104 
105 }
106
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