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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.lang.XComponent;
import com.sun.star.container.XIndexAccess;
import com.sun.star.sheet.XSpreadsheetDocument;
import com.sun.star.sheet.XSpreadsheet;
import com.sun.star.awt.ActionEvent;
import com.sun.star.script.provider.XScriptContext;
public class MemoryUsage {
public void updateMemoryUsage(XScriptContext ctxt, ActionEvent evt)
throws Exception {
Runtime runtime = Runtime.getRuntime();
Random generator = new Random();
Date date = new Date();
int len = (int)(generator.nextFloat() * runtime.freeMemory() / 5);
byte[] bytes = new byte[len];
addEntry(ctxt, date.toString(), runtime.totalMemory(), runtime.freeMemory());
}
private void addEntry(XScriptContext ctxt, String date, long total, long free)
throws Exception {
XComponent comp = ctxt.getDocument();
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));
sheet.getCellByPosition(0, 1).setValue(total - free);
sheet.getCellByPosition(1, 1).setValue(free);
sheet.getCellByPosition(2, 1).setValue(total);
sheet.getCellByPosition(0, 2).setFormula(date);
}
}
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