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/*
* 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.BufferedOutputStream;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.OutputStream;
import javax.xml.parsers.FactoryConfigurationError;
import javax.xml.parsers.ParserConfigurationException;
import javax.xml.parsers.SAXParser;
import javax.xml.parsers.SAXParserFactory;
import org.xml.sax.SAXException;
import org.xml.sax.helpers.DefaultHandler;
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 an FO file to PDF using FOP.
* It uses a SAXParser with FOP as the DefaultHandler
*/
public class ExampleFO2PDFUsingSAXParser {
// configure fopFactory as desired
private final FopFactory fopFactory = FopFactory.newInstance(new File(".").toURI());
/**
* Converts an FO file to a PDF file using FOP
* @param fo the FO file
* @param pdf the target PDF file
* @throws FactoryConfigurationError In case of a problem with the JAXP factory configuration
* @throws ParserConfigurationException In case of a problem with the parser configuration
* @throws SAXException In case of a problem during XML processing
* @throws IOException In case of an I/O problem
*/
public void convertFO2PDF(File fo, File pdf)
throws FactoryConfigurationError,
ParserConfigurationException,
SAXException, IOException {
FOUserAgent foUserAgent = fopFactory.newFOUserAgent();
// configure foUserAgent as desired
OutputStream out = null;
try {
// Setup output stream. Note: Using BufferedOutputStream
// for performance reasons (helpful with FileOutputStreams).
out = new FileOutputStream(pdf);
out = new BufferedOutputStream(out);
// Construct fop and setup output format
Fop fop = fopFactory.newFop(MimeConstants.MIME_PDF, foUserAgent, out);
// Setup SAX parser
// throws FactoryConfigurationError
SAXParserFactory factory = SAXParserFactory.newInstance();
factory.setNamespaceAware(true);
// throws ParserConfigurationException
SAXParser parser = factory.newSAXParser();
// Obtain FOP's DefaultHandler
// throws FOPException
DefaultHandler dh = fop.getDefaultHandler();
// Start parsing and FOP processing
// throws SAXException, IOException
parser.parse(fo, dh);
} finally {
out.close();
}
}
/**
* Main method.
* @param args command-line arguments
*/
public static void main(String[] args) {
try {
System.out.println("FOP ExampleFO2PDFUsingSAXParser\n");
System.out.println("Preparing...");
//Setup directories
File baseDir = new File(".");
File outDir = new File(baseDir, "out");
outDir.mkdirs();
//Setup input and output files
File fofile = new File(baseDir, "xml/fo/helloworld.fo");
File pdffile = new File(outDir, "ResultFO2PDFUsingSAXParser.pdf");
System.out.println("Input: XSL-FO (" + fofile + ")");
System.out.println("Output: PDF (" + pdffile + ")");
System.out.println();
System.out.println("Transforming...");
ExampleFO2PDFUsingSAXParser app = new ExampleFO2PDFUsingSAXParser();
app.convertFO2PDF(fofile, pdffile);
System.out.println("Success!");
} catch (Exception e) {
e.printStackTrace(System.err);
System.exit(-1);
}
}
}
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