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package org.libreoffice.example.java_scripts;
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.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");
}
}
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