- /*
- * 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.intermediate;
-
- import java.io.File;
- 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.StreamResult;
- import javax.xml.transform.stream.StreamSource;
-
- import org.xml.sax.SAXException;
-
- 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.MimeConstants;
- import org.apache.fop.render.intermediate.IFContext;
- import org.apache.fop.render.intermediate.IFDocumentHandler;
- import org.apache.fop.render.intermediate.IFException;
- import org.apache.fop.render.intermediate.IFSerializer;
- import org.apache.fop.render.intermediate.IFUtil;
- import org.apache.fop.render.intermediate.util.IFConcatenator;
-
- import embedding.ExampleObj2XML;
- import embedding.model.ProjectMember;
- import embedding.model.ProjectTeam;
-
- /**
- * Example for the intermediate format that demonstrates the concatenation of two documents
- * rendered to the intermediate format. A single PDF file is generated from the two intermediate
- * files.
- */
- public class ExampleConcat {
-
- // configure fopFactory as desired
- private FopFactory fopFactory = FopFactory.newInstance();
-
- /**
- * Creates a sample ProjectTeam instance for this demo.
- * @return ProjectTeam the newly created ProjectTeam instance
- */
- public static ProjectTeam createAnotherProjectTeam() {
- ProjectTeam team = new ProjectTeam();
- team.setProjectName("The Dynamic Duo");
- team.addMember(new ProjectMember(
- "Batman", "lead", "batman@heroes.org"));
- team.addMember(new ProjectMember(
- "Robin", "aid", "robin@heroes.org"));
- return team;
- }
-
- /**
- * Converts an XSL-FO document to an intermediate file.
- * @param src the source file
- * @param xslt the stylesheet file
- * @param intermediate the target intermediate file
- * @throws IOException In case of an I/O problem
- * @throws FOPException In case of a FOP problem
- * @throws TransformerException In case of a XSL transformation problem
- */
- public void convertToIntermediate(Source src, Source xslt, File intermediate)
- throws IOException, FOPException, TransformerException {
-
- //Create a user agent
- FOUserAgent userAgent = fopFactory.newFOUserAgent();
-
- //Create an instance of the target document handler so the IFSerializer
- //can use its font setup
- IFDocumentHandler targetHandler = userAgent.getRendererFactory().createDocumentHandler(
- userAgent, MimeConstants.MIME_PDF + ";mode=painter");
-
- //Create the IFSerializer to write the intermediate format
- IFSerializer ifSerializer = new IFSerializer();
- ifSerializer.setContext(new IFContext(userAgent));
-
- //Tell the IFSerializer to mimic the target format
- ifSerializer.mimicDocumentHandler(targetHandler);
-
- //Make sure the prepared document handler is used
- userAgent.setDocumentHandlerOverride(ifSerializer);
-
- // Setup output
- OutputStream out = new java.io.FileOutputStream(intermediate);
- out = new java.io.BufferedOutputStream(out);
- try {
- // Construct FOP (the MIME type here is unimportant due to the override
- // on the user agent)
- Fop fop = fopFactory.newFop(null, userAgent, out);
-
- // Setup XSLT
- TransformerFactory factory = TransformerFactory.newInstance();
- Transformer transformer;
- if (xslt != null) {
- transformer = factory.newTransformer(xslt);
- } else {
- transformer = factory.newTransformer();
- }
-
- // 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();
- }
- }
-
- /**
- * Concatenates an array of intermediate files to a single PDF file.
- * @param files the array of intermediate files
- * @param pdffile the target PDF file
- * @throws IOException In case of an I/O problem
- * @throws TransformerException In case of a XSL transformation problem
- * @throws SAXException In case of an XML-related problem
- * @throws IFException if there was an IF-related error while creating the output file
- */
- public void concatToPDF(File[] files, File pdffile)
- throws IOException, TransformerException, SAXException, IFException {
- // Setup output
- OutputStream out = new java.io.FileOutputStream(pdffile);
- out = new java.io.BufferedOutputStream(out);
- try {
- //Setup user agent
- FOUserAgent userAgent = fopFactory.newFOUserAgent();
-
- //Setup target handler
- String mime = MimeConstants.MIME_PDF + ";mode=painter";
- IFDocumentHandler targetHandler = fopFactory.getRendererFactory().createDocumentHandler(
- userAgent, mime);
-
- //Setup fonts
- IFUtil.setupFonts(targetHandler);
- targetHandler.setResult(new StreamResult(pdffile));
-
- IFConcatenator concatenator = new IFConcatenator(targetHandler, null);
-
- //Iterate over all intermediate files
- for (int i = 0; i < files.length; i++) {
- Source src = new StreamSource(files[i]);
- concatenator.appendDocument(src);
- }
-
- //Signal the end of the processing so the target file can be finalized properly.
- concatenator.finish();
- } finally {
- out.close();
- }
- }
-
- /**
- * Main method.
- * @param args command-line arguments
- */
- public static void main(String[] args) {
- try {
- System.out.println("FOP ExampleConcat (for the Intermediate Format)\n");
-
- //Setup directories
- File baseDir = new File(".");
- File outDir = new File(baseDir, "out");
- outDir.mkdirs();
-
- //Setup output file
- File xsltfile = new File(baseDir, "xml/xslt/projectteam2fo.xsl");
- File[] files = new File[] {
- new File(outDir, "team1.if.xml"),
- new File(outDir, "team2.if.xml")};
- File pdffile = new File(outDir, "ResultIFConcat.pdf");
- for (int i = 0; i < files.length; i++) {
- System.out.println("Intermediate file " + (i + 1) + ": "
- + files[i].getCanonicalPath());
- }
- System.out.println("PDF Output File: " + pdffile.getCanonicalPath());
- System.out.println();
-
-
- ProjectTeam team1 = ExampleObj2XML.createSampleProjectTeam();
- ProjectTeam team2 = createAnotherProjectTeam();
-
- ExampleConcat app = new ExampleConcat();
-
- //Create intermediate files
- app.convertToIntermediate(
- team1.getSourceForProjectTeam(),
- new StreamSource(xsltfile), files[0]);
- app.convertToIntermediate(
- team2.getSourceForProjectTeam(),
- new StreamSource(xsltfile), files[1]);
-
- //Concatenate the individual intermediate files to one document
- app.concatToPDF(files, pdffile);
-
- System.out.println("Success!");
-
- } catch (Exception e) {
- e.printStackTrace(System.err);
- System.exit(-1);
- }
- }
-
- }
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