Package net.sf.jasperreports.engine.fill

Source Code of net.sf.jasperreports.engine.fill.JRFiller

/*
* 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/>.
*/
package net.sf.jasperreports.engine.fill;

import java.sql.Connection;
import java.util.Map;

import net.sf.jasperreports.engine.JRDataSource;
import net.sf.jasperreports.engine.JRException;
import net.sf.jasperreports.engine.JasperPrint;
import net.sf.jasperreports.engine.JasperReport;


/**
* @author Teodor Danciu (teodord@users.sourceforge.net)
* @version $Id: JRFiller.java 3713 2010-04-08 11:06:05Z teodord $
*/
public final class JRFiller
{


  /**
   *
   */
  public static JasperPrint fillReport(
    JasperReport jasperReport,
    Map parameters,
    Connection conn
    ) throws JRException
  {
    JRBaseFiller filler = createFiller(jasperReport);
   
    JasperPrint jasperPrint = null;
   
    try
    {
      jasperPrint = filler.fill(parameters, conn);
    }
    catch(JRFillInterruptedException e)
    {
      throw new JRException("The report filling thread was interrupted.", e);
    }
   
    return jasperPrint;
  }


  /**
   *
   */
  public static JasperPrint fillReport(
    JasperReport jasperReport,
    Map parameters,
    JRDataSource dataSource
    ) throws JRException
  {
    JRBaseFiller filler = createFiller(jasperReport);
   
    JasperPrint jasperPrint = null;
   
    try
    {
      jasperPrint = filler.fill(parameters, dataSource);
    }
    catch(JRFillInterruptedException e)
    {
      throw new JRException("The report filling thread was interrupted.", e);
    }
   
    return jasperPrint;
  }
 

  /**
   * Fills a report.
   * <p/>
   * The data source used to fill the report is determined in the following way:
   * <ul>
   *   <li>If a non-null value of the {@link net.sf.jasperreports.engine.JRParameter#REPORT_DATA_SOURCE REPORT_DATA_SOURCE}
   * has been specified, it will be used as data source.</li>
   *   <li>Otherwise, if the report has a query then a data source will be created based on the query and connection
   * parameter values.</li>
   *   <li>Otherwise, the report will be filled without a data source.</li>
   * </ul>
   *
   * @param jasperReport the report
   * @param parameters the fill parameters
   * @return the filled report
   * @throws JRException
   */
  public static JasperPrint fillReport(JasperReport jasperReport, Map parameters) throws JRException
  {
    JRBaseFiller filler = createFiller(jasperReport);

    try
    {
      JasperPrint jasperPrint = filler.fill(parameters);

      return jasperPrint;
    }
    catch (JRFillInterruptedException e)
    {
      throw new JRException("The report filling thread was interrupted.", e);
    }
  }


  public static JRBaseFiller createFiller(JasperReport jasperReport) throws JRException
  {
    JRBaseFiller filler = null;

    switch (jasperReport.getPrintOrderValue())
    {
      case HORIZONTAL :
      {
        filler = new JRHorizontalFiller(jasperReport);
        break;
      }
      case VERTICAL :
      {
        filler = new JRVerticalFiller(jasperReport);
        break;
      }
    }
    return filler;
  }
 
 
  private JRFiller()
  {
  }
}
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