| /* |
| * 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.BufferedReader; |
| import java.io.File; |
| import java.io.FileOutputStream; |
| import java.io.IOException; |
| import java.io.OutputStream; |
| |
| import javax.xml.transform.Result; |
| import javax.xml.transform.Source; |
| import javax.xml.transform.Transformer; |
| import javax.xml.transform.TransformerException; |
| import javax.xml.transform.TransformerFactory; |
| import javax.xml.transform.sax.SAXResult; |
| import javax.xml.transform.stream.StreamSource; |
| |
| import org.apache.commons.io.IOUtils; |
| |
| import org.apache.fop.apps.FOPException; |
| import org.apache.fop.apps.FOUserAgent; |
| import org.apache.fop.apps.Fop; |
| import org.apache.fop.apps.FopFactory; |
| import org.apache.fop.apps.FormattingResults; |
| import org.apache.fop.apps.MimeConstants; |
| import org.apache.fop.apps.PageSequenceResults; |
| |
| /** |
| * This class demonstrates the conversion of multiple FO files to PDF using FOP. |
| * The FopFactory is reused. Its configuration is applied to each rendering run. |
| * The FOUserAgent and Fop are newly created by the FopFactory for each run. |
| * The FOUserAgent can be configured differently for each run. |
| */ |
| public class MultipleFO2PDF { |
| |
| // configure fopFactory as desired |
| // JAXP TransformerFactory can be reused, too |
| private TransformerFactory factory = TransformerFactory.newInstance(); |
| |
| /** |
| * Converts an FO file to a PDF file using FOP |
| * @param fo the FO file |
| * @param pdf the target PDF file |
| * @throws TransformerException in case of a transformation problem |
| * @throws IOException in case of an I/O problem |
| * @throws FOPException in case of a FOP problem |
| * @return the formatting results of the run |
| */ |
| public FormattingResults convertFO2PDF(File fo, File pdf) |
| throws TransformerException, IOException, FOPException { |
| FopFactory fopFactory = FopFactory.newInstance(new File(".").toURI()); |
| |
| OutputStream out = null; |
| Fop fop; |
| |
| try { |
| FOUserAgent foUserAgent = fopFactory.newFOUserAgent(); |
| // configure foUserAgent as desired |
| |
| // Setup output stream. Note: Using BufferedOutputStream |
| // for performance reasons (helpful with FileOutputStreams). |
| out = new FileOutputStream(pdf); |
| out = new BufferedOutputStream(out); |
| |
| // Construct fop with desired output format and output stream |
| fop = fopFactory.newFop(MimeConstants.MIME_PDF, foUserAgent, out); |
| |
| // Setup JAXP using identity transformer |
| 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); |
| } finally { |
| IOUtils.closeQuietly(out); |
| } |
| |
| return fop.getResults(); |
| } |
| |
| /** |
| * Listens on standard in for names of fo files to be transformed to pdf. |
| * 'quit' or the null string (for piped input) cause the listener to stop listening. |
| */ |
| public void listen() { |
| |
| //Setup directories |
| File baseDir = new File("."); |
| File outDir = new File(baseDir, "out"); |
| outDir.mkdirs(); |
| BufferedReader in = new BufferedReader(new java.io.InputStreamReader(System.in)); |
| |
| while (true) { |
| try { |
| // Listen for the input file name |
| System.out.print("Input XSL-FO file ('quit' to stop): "); |
| String foname = in.readLine(); |
| if (foname == null) { |
| System.out.println("Null input, quitting"); |
| return; |
| } |
| foname.trim(); |
| if (foname.equals("quit")) { |
| System.out.println("Quitting"); |
| return; |
| } |
| File fofile = new File(baseDir, foname); |
| String pdfname = foname; |
| int p = foname.lastIndexOf('.'); |
| pdfname = foname.substring(0, p) + ".pdf"; |
| File pdffile = new File(outDir, pdfname); |
| |
| // transform and render |
| System.out.print("Transforming " + fofile + " to PDF file " + pdffile + "..."); |
| FormattingResults foResults = convertFO2PDF(fofile, pdffile); |
| System.out.println("done!"); |
| |
| // Result processing |
| java.util.List pageSequences = foResults.getPageSequences(); |
| for (java.util.Iterator it = pageSequences.iterator(); it.hasNext();) { |
| PageSequenceResults pageSequenceResults = (PageSequenceResults)it.next(); |
| System.out.println("PageSequence " |
| + (String.valueOf(pageSequenceResults.getID()).length() > 0 |
| ? pageSequenceResults.getID() : "<no id>") |
| + " generated " + pageSequenceResults.getPageCount() + " pages."); |
| } |
| System.out.println("Generated " + foResults.getPageCount() + " pages in total."); |
| |
| } catch (Exception e) { |
| System.out.println("failure!"); |
| e.printStackTrace(System.out); |
| } finally { |
| System.out.println(""); |
| } |
| } |
| } |
| |
| /** |
| * Main method. Set up the listener. |
| * @param args command-line arguments |
| */ |
| public static void main(String[] args) { |
| System.out.println("FOP MultipleFO2PDF\n"); |
| System.out.println("Preparing..."); |
| MultipleFO2PDF m = new MultipleFO2PDF(); |
| m.listen(); |
| } |
| |
| } |