Package

Source Code of VirtualizerApp

/*
* JasperReports - Free Java Reporting Library.
* Copyright (C) 2001 - 2009 Jaspersoft Corporation. All rights reserved.
* http://www.jaspersoft.com
*
* Unless you have purchased a commercial license agreement from Jaspersoft,
* the following license terms apply:
*
* This program is part of JasperReports.
*
* JasperReports is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* JasperReports is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with JasperReports. If not, see <http://www.gnu.org/licenses/>.
*/

import java.util.HashMap;
import java.util.Map;

import net.sf.jasperreports.engine.JRDataSource;
import net.sf.jasperreports.engine.JREmptyDataSource;
import net.sf.jasperreports.engine.JRException;
import net.sf.jasperreports.engine.JRExporterParameter;
import net.sf.jasperreports.engine.JRParameter;
import net.sf.jasperreports.engine.JasperExportManager;
import net.sf.jasperreports.engine.JasperFillManager;
import net.sf.jasperreports.engine.JasperPrint;
import net.sf.jasperreports.engine.JasperPrintManager;
import net.sf.jasperreports.engine.export.JRCsvExporter;
import net.sf.jasperreports.engine.fill.JRFileVirtualizer;
import net.sf.jasperreports.engine.util.AbstractSampleApp;
import net.sf.jasperreports.view.JasperViewer;

/**
* @author Teodor Danciu (teodord@users.sourceforge.net)
* @version $Id: VirtualizerApp.java 3031 2009-08-27 11:14:57Z teodord $
*/
public class VirtualizerApp extends AbstractSampleApp
{


  /**
   *
   */
  public static void main(String[] args)
  {
    main(new VirtualizerApp(), args);
  }
 
 
  /**
   *
   */
  public void test() throws JRException
  {
    export();
  }
 
 
  /**
   *
   */
  public void view() throws JRException
  {
    JasperPrint jasperPrint = fillReport();

    JasperViewer.viewReport(jasperPrint, true);
  }
 
 
  /**
   *
   */
  public void print() throws JRException
  {
    JasperPrint jasperPrint = fillReport();

    JasperPrintManager.printReport(jasperPrint, true);
  }
 
 
  /**
   *
   */
  public void pdf() throws JRException
  {
    JasperPrint jasperPrint = fillReport();

    exportPdf(jasperPrint);
  }
 
 
  /**
   *
   */
  public void xml() throws JRException
  {
    JasperPrint jasperPrint = fillReport();

    exportXml(jasperPrint, false);
  }
 
 
  /**
   *
   */
  public void xmlEmbed() throws JRException
  {
    JasperPrint jasperPrint = fillReport();

    exportXml(jasperPrint, true);
  }
 
 
  /**
   *
   */
  public void csv() throws JRException
  {
    JasperPrint jasperPrint = fillReport();

    exportCsv(jasperPrint);
  }
 
 
  /**
   *
   */
  public void export() throws JRException
  {
    // creating the virtualizer
    JRFileVirtualizer virtualizer = new JRFileVirtualizer(2, "tmp");

    JasperPrint jasperPrint = fillReport(virtualizer);

    exportPdf(jasperPrint);
    exportXml(jasperPrint, false);
    exportHtml(jasperPrint);
    exportCsv(jasperPrint);
   
    // manually cleaning up
    virtualizer.cleanup();
  }
 

  private static JasperPrint fillReport() throws JRException
  {
    // creating the virtualizer
    JRFileVirtualizer virtualizer = new JRFileVirtualizer(2, "tmp");
   
    return fillReport(virtualizer);
  }


  private static JasperPrint fillReport(JRFileVirtualizer virtualizer) throws JRException
  {
    long start = System.currentTimeMillis();

    // Virtualization works only with in memory JasperPrint objects.
    // All the operations will first fill the report and then export
    // the filled object.
   
    // creating the data source
    JRDataSource dataSource = new JREmptyDataSource(1000);
   
    // Preparing parameters
    Map parameters = new HashMap();
    parameters.put(JRParameter.REPORT_VIRTUALIZER, virtualizer);

    // filling the report
    JasperPrint jasperPrint = JasperFillManager.fillReport("build/reports/VirtualizerReport.jasper", parameters, dataSource);
   
    virtualizer.setReadOnly(true);

    System.err.println("Filling time : " + (System.currentTimeMillis() - start));
    return jasperPrint;
  }


  private static void exportCsv(JasperPrint jasperPrint) throws JRException
  {
    long start = System.currentTimeMillis();
    JRCsvExporter exporter = new JRCsvExporter();

    exporter.setParameter(JRExporterParameter.JASPER_PRINT, jasperPrint);
    exporter.setParameter(JRExporterParameter.OUTPUT_FILE_NAME, "build/reports/" + jasperPrint.getName() + ".csv");

    exporter.exportReport();

    System.err.println("CSV creation time : " + (System.currentTimeMillis() - start));
  }

 
  private static void exportHtml(JasperPrint jasperPrint) throws JRException
  {
    long start = System.currentTimeMillis();
    JasperExportManager.exportReportToHtmlFile(jasperPrint, "build/reports/" + jasperPrint.getName() + ".html");
    System.err.println("HTML creation time : " + (System.currentTimeMillis() - start));
  }

 
  private static void exportXml(JasperPrint jasperPrint, boolean embedded) throws JRException
  {
    long start = System.currentTimeMillis();
    JasperExportManager.exportReportToXmlFile(jasperPrint, "build/reports/" + jasperPrint.getName() + ".jrpxml", embedded);
    System.err.println("XML creation time : " + (System.currentTimeMillis() - start));
  }

 
  private static void exportPdf(JasperPrint jasperPrint) throws JRException
  {
    long start = System.currentTimeMillis();
    JasperExportManager.exportReportToPdfFile(jasperPrint, "build/reports/" + jasperPrint.getName() + ".pdf");
    System.err.println("PDF creation time : " + (System.currentTimeMillis() - start));
  }

}
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