1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
|
import java.util.Random;
import java.util.Date;
import com.sun.star.uno.UnoRuntime;
import com.sun.star.uno.AnyConverter;
import com.sun.star.uno.Type;
import com.sun.star.uno.XInterface;
import com.sun.star.lang.XComponent;
import com.sun.star.lang.XMultiServiceFactory;
import com.sun.star.frame.XComponentLoader;
import com.sun.star.document.XEmbeddedObjectSupplier;
import com.sun.star.awt.ActionEvent;
import com.sun.star.awt.Rectangle;
import com.sun.star.beans.XPropertySet;
import com.sun.star.beans.PropertyValue;
import com.sun.star.container.*;
import com.sun.star.chart.*;
import com.sun.star.table.*;
import com.sun.star.sheet.*;
import com.sun.star.script.provider.XScriptContext;
public class MemoryUsage
{
// public void updateMemoryUsage(XScriptContext ctxt, ActionEvent evt)
public void updateMemoryUsage(XScriptContext ctxt)
throws Exception
{
XSpreadsheet sheet = createSpreadsheet(ctxt);
Runtime runtime = Runtime.getRuntime();
Random generator = new Random();
Date date = new Date();
// allocate a random amount of memory
int len = (int)(generator.nextFloat() * runtime.freeMemory() / 5);
byte[] bytes = new byte[len];
addData(sheet, date.toString(),
runtime.totalMemory(), runtime.freeMemory());
addChart(sheet);
}
private XSpreadsheet createSpreadsheet(XScriptContext ctxt)
throws Exception
{
XComponentLoader loader = (XComponentLoader)
UnoRuntime.queryInterface(
XComponentLoader.class, ctxt.getDesktop());
XComponent comp = loader.loadComponentFromURL(
"private:factory/scalc", "_blank", 4, new PropertyValue[0]);
XSpreadsheetDocument doc = (XSpreadsheetDocument)
UnoRuntime.queryInterface(XSpreadsheetDocument.class, comp);
XIndexAccess index = (XIndexAccess)
UnoRuntime.queryInterface(XIndexAccess.class, doc.getSheets());
XSpreadsheet sheet = (XSpreadsheet) AnyConverter.toObject(
new Type(com.sun.star.sheet.XSpreadsheet.class), index.getByIndex(0));
return sheet;
}
private void addData(
XSpreadsheet sheet, String date, long total, long free)
throws Exception
{
sheet.getCellByPosition(0, 0).setFormula("Used");
sheet.getCellByPosition(0, 1).setFormula("Free");
sheet.getCellByPosition(0, 2).setFormula("Total");
sheet.getCellByPosition(1, 0).setValue(total - free);
sheet.getCellByPosition(1, 1).setValue(free);
sheet.getCellByPosition(1, 2).setValue(total);
}
private void addChart(XSpreadsheet sheet)
throws Exception
{
Rectangle rect = new Rectangle();
rect.X = 500;
rect.Y = 3000;
rect.Width = 10000;
rect.Height = 8000;
XCellRange range = (XCellRange)
UnoRuntime.queryInterface(XCellRange.class, sheet);
XCellRange myRange =
range.getCellRangeByName("A1:B2");
XCellRangeAddressable rangeAddr = (XCellRangeAddressable)
UnoRuntime.queryInterface(XCellRangeAddressable.class, myRange);
CellRangeAddress myAddr = rangeAddr.getRangeAddress();
CellRangeAddress[] addr = new CellRangeAddress[1];
addr[0] = myAddr;
XTableChartsSupplier supp = (XTableChartsSupplier)
UnoRuntime.queryInterface( XTableChartsSupplier.class, sheet);
XTableCharts charts = supp.getCharts();
charts.addNewByName("Example", rect, addr, false, true);
try { Thread.sleep(3000); } catch (java.lang.InterruptedException e) { }
// get the diagram and Change some of the properties
XNameAccess chartsAccess = (XNameAccess)
UnoRuntime.queryInterface( XNameAccess.class, charts);
XTableChart tchart = (XTableChart)
UnoRuntime.queryInterface(
XTableChart.class, chartsAccess.getByName("Example"));
XEmbeddedObjectSupplier eos = (XEmbeddedObjectSupplier)
UnoRuntime.queryInterface( XEmbeddedObjectSupplier.class, tchart );
XInterface xifc = eos.getEmbeddedObject();
XChartDocument xChart = (XChartDocument)
UnoRuntime.queryInterface(XChartDocument.class, xifc);
XMultiServiceFactory xDocMSF = (XMultiServiceFactory)
UnoRuntime.queryInterface(XMultiServiceFactory.class, xChart);
Object diagObject =
xDocMSF.createInstance("com.sun.star.chart.PieDiagram");
XDiagram xDiagram = (XDiagram)
UnoRuntime.queryInterface(XDiagram.class, diagObject);
xChart.setDiagram(xDiagram);
XPropertySet propset = (XPropertySet)
UnoRuntime.queryInterface( XPropertySet.class, xChart.getTitle() );
propset.setPropertyValue("String", "JVM Memory Usage");
}
}
|