/*
* 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: ExampleFO2RTF.java 679326 2008-07-24 09:35:34Z vhennebert $ */
package embedding;
// Java
import java.io.BufferedOutputStream;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.OutputStream;
//JAXP
import javax.xml.transform.Transformer;
import javax.xml.transform.TransformerFactory;
import javax.xml.transform.Source;
import javax.xml.transform.Result;
import javax.xml.transform.stream.StreamSource;
import javax.xml.transform.sax.SAXResult;
// FOP
import org.apache.fop.apps.FOUserAgent;
import org.apache.fop.apps.Fop;
import org.apache.fop.apps.FOPException;
import org.apache.fop.apps.FopFactory;
import org.apache.fop.apps.MimeConstants;
/**
* This class demonstrates the conversion of an FO file to RTF using FOP.
* <p>
* Please note that this is practically the same as the ExampleFO2PDF example. Only
* the MIME parameter to the newFop() method is different!
*/
public class ExampleFO2RTF {
// configure fopFactory as desired
private FopFactory fopFactory = FopFactory.newInstance();
/**
* Converts an FO file to a RTF file using FOP
* @param fo the FO file
* @param rtf the target RTF file
* @throws IOException In case of an I/O problem
* @throws FOPException In case of a FOP problem
*/
public void convertFO2RTF(File fo, File rtf) throws IOException, FOPException {
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(rtf);
out = new BufferedOutputStream(out);
// Construct fop with desired output format
Fop fop = fopFactory.newFop(MimeConstants.MIME_RTF, foUserAgent, out);
// Setup JAXP using identity transformer
TransformerFactory factory = TransformerFactory.newInstance();
Transformer transformer = factory.newTransformer(); // identity transformer
// Setup input stream
Source src = new StreamSource(fo);
// 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);
// Please note: getResults() won't work for RTF and other flow formats (like MIF)
// as the layout engine is not involved in the conversion. The page-breaking
// is done by the application opening the generated file (like MS Word).
//FormattingResults foResults = fop.getResults();
} catch (Exception e) {
e.printStackTrace(System.err);
System.exit(-1);
} finally {
out.close();
}
}
/**
* Main method.
* @param args command-line arguments
*/
public static void main(String[] args) {
try {
System.out.println("FOP ExampleFO2RTF\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 rtffile = new File(outDir, "ResultFO2RTF.rtf");
System.out.println("Input: XSL-FO (" + fofile + ")");
System.out.println("Output: PDF (" + rtffile + ")");
System.out.println();
System.out.println("Transforming...");
ExampleFO2RTF app = new ExampleFO2RTF();
app.convertFO2RTF(fofile, rtffile);
System.out.println("Success!");
} catch (Exception e) {
e.printStackTrace(System.err);
System.exit(-1);
}
}
}