Examples of JRFileVirtualizer

net.sf.jasperreports.engine.fill.JRFileVirtualizer
Virtualizes data to the filesystem. When this object is finalized, it removes the swap files it makes. The virtualized objects have references to this object, so finalization does not occur until this object and the objects using it are only weakly referenced. @author John Bindel @version $Id: JRFileVirtualizer.java 3034 2009-08-27 11:58:04Z teodord $

Examples of net.sf.jasperreports.engine.fill.JRFileVirtualizer

   *
   */
  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();
  }

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Examples of net.sf.jasperreports.engine.fill.JRFileVirtualizer

  


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

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Examples of net.sf.jasperreports.engine.fill.JRFileVirtualizer

        }


        if (report.isVirtualizationEnabled())
        {
          log.debug("Virtualization Enabled");
          virtualizer = new JRFileVirtualizer(2, directoryProvider.getTempDirectory());
          reportParameters.put(JRParameter.REPORT_VIRTUALIZER, virtualizer);
        }
        
        reportInput.setParameters(reportParameters);
        reportInput.setInlineImages(true);

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Examples of net.sf.jasperreports.engine.fill.JRFileVirtualizer

      reportLogProvider.insertReportLog(reportLog);            


      if (report.isVirtualizationEnabled() && exportType != ExportType.IMAGE)
      {
        log.debug("Virtualization Enabled");
        virtualizer = new JRFileVirtualizer(2, directoryProvider.getTempDirectory());
        reportParameters.put(JRParameter.REPORT_VIRTUALIZER, virtualizer);
      }


      ReportEngineInput reportInput = new ReportEngineInput(report, reportParameters);
      reportInput.setExportType(exportType);

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Examples of net.sf.jasperreports.engine.fill.JRFileVirtualizer

   * @param tmpDirectory the tmp directory
   * 
   * @return the virtualizer
   */
  public JRFileVirtualizer getVirtualizer(int maxNumOfPages, String tmpDirectory) {
    JRFileVirtualizer virtualizer = null; 
    
    logger.debug("Max page cached during virtualization process: " + maxNumOfPages);
    logger.debug("Dir used as storing area during virtualization: " + tmpDirectory);
    virtualizer = new JRFileVirtualizer(maxNumOfPages, tmpDirectory);
    virtualizer.setReadOnly(true);
    
    return virtualizer;
  }

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Examples of net.sf.jasperreports.engine.fill.JRFileVirtualizer

      
      int maxNumOfPages = exporterConfig.getMaxNumOfPages();
      logger.debug("Max number of pages is equal to [" + maxNumOfPages + "]");
      
      
      params.put(JRParameter.REPORT_VIRTUALIZER, new JRFileVirtualizer(maxNumOfPages, pagingDir.toString()));
      logger.debug("Virtualizer succesfully created");
    }
    
    return params;
  }

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Examples of net.sf.jasperreports.engine.fill.JRFileVirtualizer

   * 
   * @return the virtualizer
   */
  public JRFileVirtualizer getVirtualizer(String tmpDirectory, ServletContext servletContext) {
    logger.debug("IN");
    JRFileVirtualizer virtualizer = null; 


    SourceBean config = EnginConf.getInstance().getConfig();
    String maxSizeStr = (String)config.getAttribute("VIRTUALIZER.maxSize");
    int maxSize = 2; 
    if(maxSizeStr!=null) maxSize = Integer.parseInt(maxSizeStr);
    String dir = (String)config.getAttribute("VIRTUALIZER.dir");
    if(dir == null){
      dir = tmpDirectory;
    } else {
      if(!dir.startsWith("/")) {
        String contRealPath = servletContext.getRealPath("/");
        if(contRealPath.endsWith("\\")||contRealPath.endsWith("/")) {
          contRealPath = contRealPath.substring(0, contRealPath.length()-1);
        }
        dir = contRealPath + "/" + dir;
      }
    }
    dir = dir + System.getProperty("file.separator") + "jrcache";
    File file = new File(dir);
    file.mkdirs();
    logger.debug("Max page cached during virtualization process: " + maxSize);
    logger.debug("Dir used as storing area during virtualization: " + dir);
    virtualizer = new JRFileVirtualizer(maxSize, dir);
    virtualizer.setReadOnly(false);
    logger.debug("OUT");
    return virtualizer;
  }

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