Package net.sf.jasperreports.components.barcode4j

Source Code of net.sf.jasperreports.components.barcode4j.BarcodeSVGImageProducer

/*
* 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.components.barcode4j;

import java.io.StringWriter;

import javax.xml.transform.Result;
import javax.xml.transform.Source;
import javax.xml.transform.Transformer;
import javax.xml.transform.TransformerFactory;
import javax.xml.transform.dom.DOMSource;
import javax.xml.transform.stream.StreamResult;

import net.sf.jasperreports.engine.JRComponentElement;
import net.sf.jasperreports.engine.JRRenderable;
import net.sf.jasperreports.engine.JRRuntimeException;
import net.sf.jasperreports.renderers.BatikRenderer;

import org.krysalis.barcode4j.BarcodeGenerator;
import org.krysalis.barcode4j.output.svg.SVGCanvasProvider;
import org.w3c.dom.Document;

/**
*
* @author Lucian Chirita (lucianc@users.sourceforge.net)
* @version $Id: BarcodeSVGImageProducer.java 3032 2009-08-27 11:32:28Z teodord $
*/
public class BarcodeSVGImageProducer implements BarcodeImageProducer
{

  public JRRenderable createImage(JRComponentElement componentElement,
      BarcodeGenerator barcode, String message, int orientation)
  {
    try
    {
      SVGCanvasProvider provider = new SVGCanvasProvider(false, orientation);
      barcode.generateBarcode(provider, message);
      Document svgDoc = provider.getDOM();

      Source source = new DOMSource(svgDoc);
      StringWriter outWriter = new StringWriter();
      Result output = new StreamResult(outWriter);
      Transformer transformer = TransformerFactory.newInstance()
          .newTransformer();
      transformer.transform(source, output);

      String svgString = outWriter.toString();
      return new BatikRenderer(svgString, null);
    }
    catch (Exception e)
    {
      throw new JRRuntimeException(e);
    }
  }

}
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