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25 package org.jrobin.demo.graph;
26
27 import org.jrobin.core.*;
28 import org.jrobin.graph.RrdGraphDef;
29 import org.jrobin.graph.RrdGraph;
30
31 import javax.swing.*;
32 import java.io.IOException  ;
33 import java.awt.*;
34 import java.awt.event.ComponentAdapter ;
35 import java.awt.event.ComponentEvent ;
36 import java.util.Date ;
37
38
43 public class SwingDemo
44 {
45 static JFrame frame = null;
46 static SwingDemoPanel demoPanel = null;
47 static RrdGraph graph = null;
48 static RrdGraphDef gDef = null;
49
50 static final String rrd = "SwingDemo.rrd";
51 static final long START = Util.getTimestamp( 2004, 1, 1 );
52
53 static Date end = new Date (START);
54
55 static void prepareRrd() throws IOException , RrdException
56 {
57 RrdDef rrdDef = new RrdDef( rrd, START - 300, 300 );
58 rrdDef.addDatasource("a", "GAUGE", 600, Double.NaN, Double.NaN);
59 rrdDef.addArchive("AVERAGE", 0.5, 1, 300);
60 rrdDef.addArchive("MIN", 0.5, 6, 300);
61 rrdDef.addArchive("MAX", 0.5, 6, 300);
62
63 RrdDb rrdDb = new RrdDb( rrdDef, RrdBackendFactory.getFactory("MEMORY") );
64 rrdDb.close();
65 }
66
67 static void prepareFrame() throws RrdException
68 {
69 gDef = new RrdGraphDef();
70 gDef.setImageBorder( Color.WHITE, 0 );
71 gDef.setTitle("JRobin Swing minmax demo");
72 gDef.setVerticalLabel( "value" );
73 gDef.setTimeAxisLabel( "time" );
74 gDef.datasource("a", rrd, "a", "AVERAGE", "MEMORY" );
75 gDef.datasource("b", rrd, "a", "MIN", "MEMORY" );
76 gDef.datasource("c", rrd, "a", "MAX", "MEMORY");
77 gDef.datasource( "avg", "a", "AVERAGE" );
78 gDef.area("a", Color.decode("0xb6e4"), "real");
79 gDef.line("b", Color.decode("0x22e9"), "min", 2 );
80 gDef.line("c", Color.decode("0xee22"), "max", 2 );
81 gDef.line("avg", Color.RED, "Average" );
82 gDef.time( "@l@lTime period: @t", "MMM dd, yyyy HH:mm:ss", START );
83 gDef.time( "to @t@l", "HH:mm:ss", end );
84 gDef.time("@lGenerated: @t@c", "HH:mm:ss" );
85
86 graph = new RrdGraph(gDef);
88
89 frame = new JFrame( "JRobin Swing Demo" );
91 frame.setDefaultCloseOperation( JFrame.EXIT_ON_CLOSE );
92
93 demoPanel = new SwingDemoPanel( graph );
94 frame.getContentPane().add( demoPanel );
95
96 frame.pack();
97
98 frame.addComponentListener(new ComponentAdapter () {
99 public void componentResized(ComponentEvent e) {
100 Dimension d = frame.getContentPane().getSize();
101 demoPanel.setGraphDimension(d);
102 }
103 });
104 frame.setBounds( 10, 10, 504, 303 );
105 frame.show();
106 }
107
108 public static void main( String [] args ) throws Exception
109 {
110 prepareRrd();
111
112 prepareFrame();
113
114 RrdDb rrdDb = new RrdDb( rrd, RrdBackendFactory.getFactory("MEMORY") );
116 Sample sample = rrdDb.createSample();
117
118 long t = 0, start, stop, generationTime;
119
120 for ( int i = 1; i < 25; i++ )
122 {
123 start = System.currentTimeMillis();
124
125 t = START + i*300;
126
127 sample.setTime( t );
129 sample.setValue("a", Math.sin(t / 3000.0) * 50 + 50);
130 sample.update();
131
132 gDef.setTimePeriod( START, t );
134 end.setTime( t *1000 );
135
136 frame.repaint();
138
139 stop = System.currentTimeMillis();
140 generationTime = stop - start;
141
142 if ( generationTime < 1000 )
144 Thread.sleep( 1000 - generationTime );
145 }
146
147 for ( int i = 0; i < 22; i++ )
149 {
150 start = System.currentTimeMillis();
151
152 for ( int j = 1; j < 13; j++ )
153 {
154 t = t + 300;
155
156 sample.setTime( t );
158 sample.setValue("a", Math.sin(t / 3000.0) * 50 + 50);
159 sample.update();
160 }
161
162 gDef.setTimePeriod( START, t );
164 end.setTime( t * 1000 );
165
166 frame.repaint();
168
169 stop = System.currentTimeMillis();
170 generationTime = stop - start;
171
172 if ( generationTime < 1000 )
174 Thread.sleep( 1000 - generationTime );
175 }
176 }
177 }
178 |
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