cdmlib-print/src/main/java/eu/etaxonomy/cdm/print/out/pdf/PdfOutputModule.java

   1 // $Id$
   2 /**
   3 * Copyright (C) 2007 EDIT
   4 * European Distributed Institute of Taxonomy
   5 * http://www.e-taxonomy.eu
   6 *
   7 * The contents of this file are subject to the Mozilla Public License Version 1.1
   8 * See LICENSE.TXT at the top of this package for the full license terms.
   9 */
  10
  11 package eu.etaxonomy.cdm.print.out.pdf;
  12
  13 import java.io.File;
  14 import java.io.FileOutputStream;
  15 import java.io.InputStream;
  16 import java.io.OutputStream;
  17
  18 import javax.xml.transform.Result;
  19 import javax.xml.transform.Transformer;
  20 import javax.xml.transform.TransformerFactory;
  21 import javax.xml.transform.sax.SAXResult;
  22 import javax.xml.transform.stream.StreamSource;
  23
  24 import org.apache.fop.apps.FOUserAgent;
  25 import org.apache.fop.apps.Fop;
  26 import org.apache.fop.apps.FopFactory;
  27 import org.apache.fop.apps.MimeConstants;
  28 import org.apache.log4j.Logger;
  29 import org.jdom.Document;
  30 import org.jdom.transform.JDOMSource;
  31
  32 import eu.etaxonomy.cdm.print.NotificationMediator;
  33 import eu.etaxonomy.cdm.print.out.AbstractPublishOutputModule;
  34
  35 /**
  36  * This output module will create a <a href="http://www.adobe.com/products/acrobat/adobepdf.html">PDF</a> document
  37  * with a predefined output for quick printing.
  38  *
  39  * @author n.hoffmann
  40  * @created Jul 20, 2010
  41  * @version 1.0
  42  */
  43 public class PdfOutputModule extends AbstractPublishOutputModule {
  44         private static final Logger logger = Logger
  45                         .getLogger(PdfOutputModule.class);
  46
  47         public static String STYLESHEET_RESOURCE_DEFAULT = "/eu/etaxonomy/printpublisher/out/pdf/cdmToPdf.xsl";
  48
  49         /*
  50          * (non-Javadoc)
  51          * @see eu.etaxonomy.printpublisher.out.IPublishOutputModule#output(org.jdom.Document, java.io.File, eu.etaxonomy.printpublisher.NotificationMediator)
  52          */
  53         public void output(Document document, File exportFolder, NotificationMediator notificationMediator) {
  54
  55                 super.output(document, exportFolder, notificationMediator);
  56
  57                 try{
  58
  59                          // configure fopFactory as desired
  60                         FopFactory fopFactory = FopFactory.newInstance();
  61
  62                         FOUserAgent foUserAgent = fopFactory.newFOUserAgent();
  63                          // configure foUserAgent as desired
  64
  65
  66                         // Setup output
  67                         String filePath = getFilePath(exportFolder);
  68                         OutputStream out = new FileOutputStream(filePath);
  69                         out = new java.io.BufferedOutputStream(out);
  70
  71                         try{
  72
  73                                 // Construct fop with desired output format
  74                     Fop fop = fopFactory.newFop(MimeConstants.MIME_PDF, foUserAgent, out);
  75
  76                     // Setup XSLT
  77                     InputStream xslt = PdfOutputModule.class.getResourceAsStream(STYLESHEET_RESOURCE_DEFAULT);
  78                     TransformerFactory factory = TransformerFactory.newInstance();
  79                     Transformer transformer = factory.newTransformer(new StreamSource(xslt));
  80
  81                     // Setup input for XSLT transformation
  82                     JDOMSource source = new JDOMSource(document);
  83
  84                     // Resulting SAX events (the generated FO) must be piped through to FOP
  85                     Result result = new SAXResult(fop.getDefaultHandler());
  86
  87                     // Start XSLT transformation and FOP processing
  88                     transformer.transform(source, result);
  89             } finally {
  90                 out.close();
  91                 logger.info("PDF file created: " + filePath);
  92             }
  93
  94                 }catch (Exception e) {
  95                         logger.error("Could not generate document", e);
  96                 }
  97         }
  98
  99         public String getOutputFileSuffix() {
 100                 return "pdf";
 101         }
 102 }