/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/* $Id$ */
package embedding;
// Java
import java.io.File;
import java.io.OutputStream;
import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.parsers.ParserConfigurationException;
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.sax.SAXResult;
import org.w3c.dom.Document;
import org.w3c.dom.Element;
import org.w3c.dom.Node;
import org.w3c.dom.Text;
import org.apache.fop.apps.FOUserAgent;
import org.apache.fop.apps.Fop;
import org.apache.fop.apps.FopFactory;
import org.apache.fop.apps.MimeConstants;
/**
* This class demonstrates the conversion of a DOM Document to PDF
* using JAXP (XSLT) and FOP (XSL-FO).
*/
public class ExampleDOM2PDF {
// configure fopFactory as desired
private final FopFactory fopFactory = FopFactory.newInstance(new File(".").toURI());
/** xsl-fo namespace URI */
protected static String foNS = "http://www.w3.org/1999/XSL/Format";
/**
* Converts a DOM Document to a PDF file using FOP.
* @param xslfoDoc the DOM Document
* @param pdf the target PDF file
*/
public void convertDOM2PDF(Document xslfoDoc, File pdf) {
try {
FOUserAgent foUserAgent = fopFactory.newFOUserAgent();
// configure foUserAgent as desired
// Setup output
OutputStream out = new java.io.FileOutputStream(pdf);
out = new java.io.BufferedOutputStream(out);
try {
// Construct fop with desired output format and output stream
Fop fop = fopFactory.newFop(MimeConstants.MIME_PDF, foUserAgent, out);
// Setup Identity Transformer
TransformerFactory factory = TransformerFactory.newInstance();
Transformer transformer = factory.newTransformer(); // identity transformer
// Setup input for XSLT transformation
Source src = new DOMSource(xslfoDoc);
// Resulting SAX events (the generated FO) must be piped through to FOP
Result res = new SAXResult(fop.getDefaultHandler());
// Start XSLT transformation and FOP processing
transformer.transform(src, res);
} finally {
out.close();
}
} catch (Exception e) {
e.printStackTrace(System.err);
System.exit(-1);
}
}
/**
* Main method.
* @param args command-line arguments
*/
public static void main(String[] args) {
try {
System.out.println("FOP ExampleDOM2PDF\n");
//Setup directories
File baseDir = new File(".");
File outDir = new File(baseDir, "out");
outDir.mkdirs();
//Setup output file
File pdffile = new File(outDir, "ResultDOM2PDF.pdf");
System.out.println("PDF Output File: " + pdffile);
System.out.println();
Document foDoc = buildDOMDocument();
ExampleDOM2PDF app = new ExampleDOM2PDF();
app.convertDOM2PDF(foDoc, pdffile);
System.out.println("Success!");
} catch (Exception e) {
e.printStackTrace(System.err);
System.exit(-1);
}
}
/**
* Builds the example FO document as a DOM in memory.
* @return the FO document
* @throws ParserConfigurationException In case there is a problem creating a DOM document
*/
private static Document buildDOMDocument() throws ParserConfigurationException {
// Create a sample XSL-FO DOM document
Document foDoc = null;
Element root = null, ele1 = null, ele2 = null, ele3 = null;
DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();
dbf.setNamespaceAware(true);
DocumentBuilder db = dbf.newDocumentBuilder();
foDoc = db.newDocument();
root = foDoc.createElementNS(foNS, "fo:root");
foDoc.appendChild(root);
ele1 = foDoc.createElementNS(foNS, "fo:layout-master-set");
root.appendChild(ele1);
ele2 = foDoc.createElementNS(foNS, "fo:simple-page-master");
ele1.appendChild(ele2);
ele2.setAttributeNS(null, "master-name", "letter");
ele2.setAttributeNS(null, "page-height", "11in");
ele2.setAttributeNS(null, "page-width", "8.5in");
ele2.setAttributeNS(null, "margin-top", "1in");
ele2.setAttributeNS(null, "margin-bottom", "1in");
ele2.setAttributeNS(null, "margin-left", "1in");
ele2.setAttributeNS(null, "margin-right", "1in");
ele3 = foDoc.createElementNS(foNS, "fo:region-body");
ele2.appendChild(ele3);
ele1 = foDoc.createElementNS(foNS, "fo:page-sequence");
root.appendChild(ele1);
ele1.setAttributeNS(null, "master-reference", "letter");
ele2 = foDoc.createElementNS(foNS, "fo:flow");
ele1.appendChild(ele2);
ele2.setAttributeNS(null, "flow-name", "xsl-region-body");
addElement(ele2, "fo:block", "Hello World!");
return foDoc;
}
/**
* Adds an element to the DOM.
* @param parent parent node to attach the new element to
* @param newNodeName name of the new node
* @param textVal content of the element
*/
protected static void addElement(Node parent, String newNodeName,
String textVal) {
if (textVal == null) {
return;
} // use only with text nodes
Element newElement = parent.getOwnerDocument().createElementNS(
foNS, newNodeName);
Text elementText = parent.getOwnerDocument().createTextNode(textVal);
newElement.appendChild(elementText);
parent.appendChild(newElement);
}
}