JRGenericPrintElementParameterFactory.java :  » Report » jasperreports-3.7.2 » net » sf » jasperreports » engine » xml » Java Open Source

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jasperreports 3.7.2 » net » sf » jasperreports » engine » xml » JRGenericPrintElementParameterFactory.java
/*
 * 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.xml;

import net.sf.jasperreports.engine.JRGenericPrintElement;
import net.sf.jasperreports.engine.util.JRValueStringUtils;

import org.xml.sax.Attributes;

/**
 * Helper factory class used to parse generic print element parameters.
 * 
 * @author Lucian Chirita (lucianc@users.sourceforge.net)
 * @version $Id: JRGenericPrintElementParameterFactory.java 3616 2010-03-24 14:20:41Z teodord $
 * @see JRGenericPrintElement#setParameterValue(String, Object)
 */
public class JRGenericPrintElementParameterFactory extends JRBaseFactory
{

  public Object createObject(Attributes attributes) throws Exception
  {
    JRGenericPrintElement element = (JRGenericPrintElement) digester.peek();
    String name = attributes.getValue(JRXmlConstants.ATTRIBUTE_name);
    return new Parameter(element, name);
  }
  
  public static class Parameter
  {
    protected JRGenericPrintElement element;
    protected String name;
    protected ParameterValue value;
    
    public Parameter(JRGenericPrintElement element, String name)
    {
      this.element = element;
      this.name = name;
    }
    
    public void setValue(ParameterValue value)
    {
      this.value = value;
    }
    
    public void addParameter()
    {
      element.setParameterValue(name, value == null ? null : value.value);
    }
  }
  
  public static class ParameterValue
  {
    protected String valueClass;
    protected Object value;
    
    public ParameterValue(String valueClass)
    {
      this.valueClass = valueClass;
    }
    
    public void setData(String data)
    {
      if (data != null)
      {
        value = JRValueStringUtils.deserialize(valueClass, data);
      }
    }
  }
  
  public static class ParameterValueFactory extends JRBaseFactory
  {

    public Object createObject(Attributes attributes) throws Exception
    {
      String valueClass = attributes.getValue(JRXmlConstants.ATTRIBUTE_class);
      return new ParameterValue(valueClass);
    }
    
    
  }

}
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