private void eatMemory(int callIndex, File foFile, int replicatorRepeats) throws Exception {
Source src = new StreamSource(foFile);
Transformer transformer = replicatorTemplates.newTransformer();
transformer.setParameter("repeats", new Integer(replicatorRepeats));
OutputStream out = new NullOutputStream(); // write to /dev/nul
try {
FOUserAgent userAgent = fopFactory.newFOUserAgent();
userAgent.setBaseURL(foFile.getParentFile().toURL().toExternalForm());
Fop fop = fopFactory.newFop(MimeConstants.MIME_PDF, userAgent, out);
Result res = new SAXResult(fop.getDefaultHandler());
transformer.transform(src, res);
stats.notifyPagesProduced(fop.getResults().getPageCount());
if (callIndex == 0) {
System.out.println(
foFile.getName() + " generates " + fop.getResults().getPageCount() + " pages.");
}
stats.checkStats();
} finally {
IOUtils.closeQuietly(out);
}
}
protected Fop createFop(String userConfiguration, String outputFormat, OutputStream outputStream)
throws FOPException {
FopFactory fopFactory = getFopFactory(userConfiguration);
return fopFactory.newFop(
outputFormat != null ? outputFormat : MimeConstants.MIME_PDF, outputStream);
}
/**
* Transform an xml tree to PDF using XSL-FOP * putting the result to a stream (uses a
* stylesheet on disk)
*/
public static String transformFOP(String uploadDir, Element xml, String styleSheetPath)
throws Exception {
String file = uploadDir + UUID.randomUUID().toString() + ".pdf";
// Step 1: Construct a FopFactory
// (reuse if you plan to render multiple documents!)
FopFactory fopFactory = FopFactory.newInstance();
// Step 2: Set up output stream.
// Note: Using BufferedOutputStream for performance reasons (helpful
// with FileOutputStreams).
OutputStream out = new BufferedOutputStream(new FileOutputStream(new File(file)));
try {
// Step 3: Construct fop with desired output format
Fop fop = fopFactory.newFop(MimeConstants.MIME_PDF, out);
// Step 4: Setup JAXP using identity transformer
TransformerFactory factory = TransformerFactoryFactory.getTransformerFactory();
factory.setURIResolver(new JeevesURIResolver());
Source xslt = new StreamSource(new File(styleSheetPath));
try {
factory.setAttribute(FeatureKeys.VERSION_WARNING, false);
factory.setAttribute(FeatureKeys.LINE_NUMBERING, true);
factory.setAttribute(FeatureKeys.RECOVERY_POLICY, Configuration.RECOVER_SILENTLY);
} catch (IllegalArgumentException e) {
Log.warning(Log.ENGINE, "WARNING: transformerfactory doesnt like saxon attributes!");
// e.printStackTrace();
} finally {
Transformer transformer = factory.newTransformer(xslt);
// Step 5: Setup input and output for XSLT transformation
// Setup input stream
Source src = new JDOMSource(new Document((Element) xml.detach()));
// Resulting SAX events (the generated FO) must be piped through to
// FOP
Result res = new SAXResult(fop.getDefaultHandler());
// Step 6: Start XSLT transformation and FOP processing
transformer.transform(src, res);
}
} finally {
// Clean-up
out.close();
}
return file;
}
protected void render(
FopFactory fopFactory,
String outputFormat,
Source foDocumentSrc,
PlaceholderReplacementHandler.PlaceholderLookup placeholderLookup,
OutputStream outputStream)
throws Docx4JException {
Fop fop = null;
Result result = null;
try {
fop = fopFactory.newFop(outputFormat, outputStream);
result =
(placeholderLookup == null
?
// 1 Pass
new SAXResult(fop.getDefaultHandler())
:
// 2 Pass
new SAXResult(
new PlaceholderReplacementHandler(fop.getDefaultHandler(), placeholderLookup)));
} catch (FOPException e) {
throw new Docx4JException(
"Exception setting up result for fo transformation: " + e.getMessage(), e);
}
XmlSerializerUtil.serialize(foDocumentSrc, result, false, false);
}
/** {@inheritDoc} */
@Override
public void init() throws ServletException {
this.uriResolver = new RepositoryURIResolver();
this.transFactory = TransformerFactory.newInstance();
this.transFactory.setURIResolver(this.uriResolver);
// Configure FopFactory as desired
this.fopFactory = FopFactory.newInstance();
this.fopFactory.setURIResolver(this.uriResolver);
configureFopFactory();
}
/**
* Takes a DOM structure and renders a PDF
*
* @param doc DOM structure
* @param xslFileName XSL file to use to translate the DOM document to FOP
*/
@SuppressWarnings("unchecked")
protected void generatePDF(Document doc, OutputStream streamOut) {
String xslFileName = "participants-all-attrs.xsl";
Locale currentLocale = rb.getLocale();
if (currentLocale != null) {
String fullLocale = currentLocale.toString();
xslFileName = "participants-all-attrs_" + fullLocale + ".xsl";
if (getClass().getClassLoader().getResourceAsStream(xslFileName) == null) {
xslFileName = "participants-all-attrs_" + currentLocale.getCountry() + ".xsl";
if (getClass().getClassLoader().getResourceAsStream(xslFileName) == null) {
// We use the default file
xslFileName = "participants-all-attrs.xsl";
}
}
}
String configFileName = "userconfig.xml";
DefaultConfigurationBuilder cfgBuilder = new DefaultConfigurationBuilder();
try {
Configuration cfg =
cfgBuilder.build(getClass().getClassLoader().getResourceAsStream(configFileName));
FopFactory fopFactory = FopFactory.newInstance();
fopFactory.setUserConfig(cfg);
fopFactory.setStrictValidation(false);
FOUserAgent foUserAgent = fopFactory.newFOUserAgent();
if (!StringUtils.isEmpty(ServerConfigurationService.getString("pdf.default.font"))) {
// this allows font substitution to support i18n chars in PDFs - SAK-21909
FontQualifier fromQualifier = new FontQualifier();
fromQualifier.setFontFamily("DEFAULT_FONT");
FontQualifier toQualifier = new FontQualifier();
toQualifier.setFontFamily(
ServerConfigurationService.getString("pdf.default.font", "Helvetica"));
FontSubstitutions result = new FontSubstitutions();
result.add(new FontSubstitution(fromQualifier, toQualifier));
fopFactory.getFontManager().setFontSubstitutions(result);
}
Fop fop = fopFactory.newFop(MimeConstants.MIME_PDF, foUserAgent, streamOut);
InputStream in = getClass().getClassLoader().getResourceAsStream(xslFileName);
Transformer transformer = transformerFactory.newTransformer(new StreamSource(in));
transformer.setParameter("titleName", rb.getString("sitegen.siteinfolist.title.name"));
transformer.setParameter("titleSection", rb.getString("sitegen.siteinfolist.title.section"));
transformer.setParameter("titleId", rb.getString("sitegen.siteinfolist.title.id"));
transformer.setParameter("titleCredit", rb.getString("sitegen.siteinfolist.title.credit"));
transformer.setParameter("titleRole", rb.getString("sitegen.siteinfolist.title.role"));
transformer.setParameter("titleStatus", rb.getString("sitegen.siteinfolist.title.status"));
Source src = new DOMSource(doc);
transformer.transform(src, new SAXResult(fop.getDefaultHandler()));
} catch (Exception e) {
e.printStackTrace();
log.warn(this + ".generatePDF(): " + e);
return;
}
}
/**
* Renders an input file (XML or XSL-FO) into a PDF file. It uses the JAXP transformer given to
* optionally transform the input document to XSL-FO. The transformer may be an identity
* transformer in which case the input must already be XSL-FO. The PDF is written to a byte array
* that is returned as the method's result.
*
* @param src Input XML or XSL-FO
* @param transformer Transformer to use for optional transformation
* @param response HTTP response object
* @throws FOPException If an error occurs during the rendering of the XSL-FO
* @throws TransformerException If an error occurs during XSL transformation
* @throws IOException In case of an I/O problem
*/
protected void render(Source src, Transformer transformer, HttpServletResponse response)
throws FOPException, TransformerException, IOException {
FOUserAgent foUserAgent = getFOUserAgent();
// Setup output
ByteArrayOutputStream out = new ByteArrayOutputStream();
// Setup FOP
Fop fop = fopFactory.newFop(MimeConstants.MIME_PDF, foUserAgent, out);
// Make sure the XSL transformation's result is piped through to FOP
Result res = new SAXResult(fop.getDefaultHandler());
// Start the transformation and rendering process
transformer.transform(src, res);
// Return the result
sendPDF(out.toByteArray(), response);
}
/**
* Display an FO file in the AWT Preview.
*
* @param fo the FO file
* @throws IOException In case of an I/O problem
* @throws FOPException In case of a problem during layout
* @throws TransformerException In case of a problem during XML processing
*/
public void viewFO(File fo) throws IOException, FOPException, TransformerException {
// Setup FOP
Fop fop = fopFactory.newFop(MimeConstants.MIME_FOP_AWT_PREVIEW);
try {
// Load XSL-FO file (you can also do an XSL transformation here)
TransformerFactory factory = TransformerFactory.newInstance();
Transformer transformer = factory.newTransformer();
Source src = new StreamSource(fo);
Result res = new SAXResult(fop.getDefaultHandler());
transformer.transform(src, res);
} catch (Exception e) {
if (e instanceof FOPException) {
throw (FOPException) e;
}
throw new FOPException(e);
}
}
/**
* For first pass of two pass process, invoke org.apache.fop.apps.FormattingResults which can tell
* us the number of pages in each page sequence, and in the document as a whole.
*
* @param fopFactory
* @param outputFormat
* @param foDocumentSrc
* @param placeholderLookup
* @return
* @throws Docx4JException
*/
protected FormattingResults calcResults(
FopFactory fopFactory,
String outputFormat,
Source foDocumentSrc,
PlaceholderReplacementHandler.PlaceholderLookup placeholderLookup)
throws Docx4JException {
Fop fop = null;
Result result = null;
try {
fop = fopFactory.newFop(outputFormat, new NullOutputStream());
result =
new SAXResult(
new PlaceholderReplacementHandler(fop.getDefaultHandler(), placeholderLookup));
} catch (FOPException e) {
throw new Docx4JException(
"Exception setting up result for fo transformation: " + e.getMessage(), e);
}
XmlSerializerUtil.serialize(foDocumentSrc, result, false, false);
return fop.getResults();
}
public void generateGeneric() {
String tMIME = null;
if (genMode.equals("PDF")) {
tMIME = MimeConstants.MIME_PDF;
} else {
tMIME = MimeConstants.MIME_RTF;
}
try {
System.out.println("FOP Transformation\n");
System.out.println("Preparing...");
String fileName = new File(xsltfile).getName();
// File xsltfile = new File("lib/xsl2/xslt/base/fo/" + fileName);
File xsltfile = new File("lib/xsl/fo/" + fileName);
// configure fopFactory.4. as desired
// FopFactoryConfig ffc = new FopFactoryConfig();
// FopFactory fopFactory = FopFactory.newInstance(new File(".").toURI()) ; // .newInstance();
FopFactory fopFactory = FopFactory.newInstance();
FOUserAgent foUserAgent = fopFactory.newFOUserAgent();
foUserAgent.setTitle("TEST");
// configure foUserAgent as desired
// Setup output
OutputStream out = new java.io.FileOutputStream(outputfile);
out = new java.io.BufferedOutputStream(out);
try {
TransformerFactory factory = TransformerFactory.newInstance();
Transformer transformer = factory.newTransformer(new StreamSource(xsltfile));
// test run to get total pagecount
Fop fop = fopFactory.newFop(tMIME, foUserAgent, out);
Source src = new StreamSource(xmlfile);
Result res = new SAXResult(fop.getDefaultHandler());
transformer.transform(src, res);
// Get total page count
String pageCount = "UNAVAILABLE";
if (fop.getResults() != null) {
pageCount = Integer.toString(fop.getResults().getPageCount());
} else {
}
System.out.println("totalcc " + pageCount);
// real run
// Construct fop with desired output format
fop = fopFactory.newFop(tMIME, foUserAgent, out);
// set draft parameter
String draftImageFn =
new File("lib/xsl/images/draft.png").toURI().toString(); // .getAbsolutePath();
transformer.setParameter("draft.watermark.image", draftImageFn);
System.out.println(transformer.getParameter("draft.watermark.image"));
if (isDraftMode) {
transformer.setParameter("draft.mode", "yes");
} else {
transformer.setParameter("draft.mode", "no");
}
transformer.setParameter("draft.mode", pageCount);
// set pagecount parameter
transformer.setParameter("ebnf.statement.terminator", pageCount);
// Resulting SAX events (the generated FO) must be piped
// through
// to FOP
res = new SAXResult(fop.getDefaultHandler());
// Start XSLT transformation and FOP processing
transformer.transform(src, res);
} finally {
out.close();
status = 0;
}
System.out.println("Success!");
System.out.println("DocBook " + genMode + " generation COMPLETED");
} catch (Exception e) {
e.printStackTrace(System.err);
StringWriter sw = new StringWriter();
PrintWriter pw = new PrintWriter(sw);
e.printStackTrace(pw);
status = 2;
return;
}
}
/**
* Debug tool to create and process large FO files by replicating them a specified number of times.
*/
public class MemoryEater {
private SAXTransformerFactory tFactory =
(SAXTransformerFactory) SAXTransformerFactory.newInstance();
private FopFactory fopFactory = FopFactory.newInstance();
private Templates replicatorTemplates;
private Stats stats;
public MemoryEater() throws TransformerConfigurationException, MalformedURLException {
File xsltFile = new File("test/xsl/fo-replicator.xsl");
Source xslt = new StreamSource(xsltFile);
replicatorTemplates = tFactory.newTemplates(xslt);
}
private void eatMemory(File foFile, int runRepeats, int replicatorRepeats) throws Exception {
stats = new Stats();
for (int i = 0; i < runRepeats; i++) {
eatMemory(i, foFile, replicatorRepeats);
stats.progress(i, runRepeats);
}
stats.dumpFinalStats();
System.out.println(stats.getGoogleChartURL());
}
private void eatMemory(int callIndex, File foFile, int replicatorRepeats) throws Exception {
Source src = new StreamSource(foFile);
Transformer transformer = replicatorTemplates.newTransformer();
transformer.setParameter("repeats", new Integer(replicatorRepeats));
OutputStream out = new NullOutputStream(); // write to /dev/nul
try {
FOUserAgent userAgent = fopFactory.newFOUserAgent();
userAgent.setBaseURL(foFile.getParentFile().toURL().toExternalForm());
Fop fop = fopFactory.newFop(MimeConstants.MIME_PDF, userAgent, out);
Result res = new SAXResult(fop.getDefaultHandler());
transformer.transform(src, res);
stats.notifyPagesProduced(fop.getResults().getPageCount());
if (callIndex == 0) {
System.out.println(
foFile.getName() + " generates " + fop.getResults().getPageCount() + " pages.");
}
stats.checkStats();
} finally {
IOUtils.closeQuietly(out);
}
}
private static void prompt() throws IOException {
BufferedReader in = new BufferedReader(new java.io.InputStreamReader(System.in));
System.out.print("Press return to continue...");
in.readLine();
}
/**
* Main method.
*
* @param args the command-line arguments
*/
public static void main(String[] args) {
boolean doPrompt = true; // true if you want a chance to start the monitoring console
try {
int replicatorRepeats = 2;
int runRepeats = 1;
if (args.length > 0) {
replicatorRepeats = Integer.parseInt(args[0]);
}
if (args.length > 1) {
runRepeats = Integer.parseInt(args[1]);
}
File testFile = new File("examples/fo/basic/readme.fo");
System.out.println(
"MemoryEater! About to replicate the test file "
+ replicatorRepeats
+ " times and run it "
+ runRepeats
+ " times...");
if (doPrompt) {
prompt();
}
System.out.println("Processing...");
long start = System.currentTimeMillis();
MemoryEater app = new MemoryEater();
app.eatMemory(testFile, runRepeats, replicatorRepeats);
long duration = System.currentTimeMillis() - start;
System.out.println("Success! Job took " + duration + " ms");
if (doPrompt) {
prompt();
}
} catch (Exception e) {
e.printStackTrace();
}
}
}
/** This class demonstrates the use of the AWT Viewer. */
public class ExampleAWTViewer {
// configure fopFactory as desired
private FopFactory fopFactory = FopFactory.newInstance();
/**
* Display an FO file in the AWT Preview.
*
* @param fo the FO file
* @throws IOException In case of an I/O problem
* @throws FOPException In case of a problem during layout
* @throws TransformerException In case of a problem during XML processing
*/
public void viewFO(File fo) throws IOException, FOPException, TransformerException {
// Setup FOP
Fop fop = fopFactory.newFop(MimeConstants.MIME_FOP_AWT_PREVIEW);
try {
// Load XSL-FO file (you can also do an XSL transformation here)
TransformerFactory factory = TransformerFactory.newInstance();
Transformer transformer = factory.newTransformer();
Source src = new StreamSource(fo);
Result res = new SAXResult(fop.getDefaultHandler());
transformer.transform(src, res);
} catch (Exception e) {
if (e instanceof FOPException) {
throw (FOPException) e;
}
throw new FOPException(e);
}
}
/**
* Main method.
*
* @param args the command-line arguments
*/
public static void main(String[] args) {
try {
System.out.println("FOP ExampleAWTViewer\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");
System.out.println("Input: XSL-FO (" + fofile + ")");
System.out.println("Output: AWT Viewer");
System.out.println();
System.out.println("Starting AWT Viewer...");
ExampleAWTViewer app = new ExampleAWTViewer();
app.viewFO(fofile);
System.out.println("Success!");
} catch (Exception e) {
System.err.println(ExceptionUtil.printStackTrace(e));
System.exit(-1);
}
}
}
@Override
protected boolean executeAction() {
String printFileName = null;
IActionSequenceResource printFileResource = null;
PrinterAction printAction = (PrinterAction) getActionDefinition();
if (printAction.getPrintfile() != ActionInputConstant.NULL_INPUT) {
printFileName = printAction.getPrintfile().getStringValue();
} else if (printAction.getResourcesPrintFile() != null) {
org.pentaho.actionsequence.dom.IActionResource tempResource =
printAction.getResourcesPrintFile();
printFileResource = getResource(tempResource.getName());
}
InputStream inStream = null;
String printerName =
printAction.getPrinterName().getStringValue(PrintComponent.DEFAULT_PRINTER);
String lastPrinter = printAction.getDefaultPrinter().getStringValue();
if ((printAction.getOutputPrinterName() != null) && !printerName.equals("")) { // $NON-NLS-1$
IActionOutput output = printAction.getOutputPrinterName();
output.setValue(printerName);
if (printAction.getOutputDefaultPrinter() != null) {
IActionOutput defaultPrinterOutput = printAction.getOutputDefaultPrinter();
defaultPrinterOutput.setValue(printerName);
}
return true;
}
PrintService printer = getPrinterInternal(printerName, lastPrinter);
if (printer == null) {
if (!feedbackAllowed()) {
error(
Messages.getInstance()
.getErrorString("PrintComponent.ERROR_0002_NO_SUITABLE_PRINTER")); // $NON-NLS-1$
return false;
}
// we created the printer feedback entry already
return true;
}
if (printAction.getOutputDefaultPrinter() != null) {
IActionOutput defaultPrinterOutput = printAction.getOutputDefaultPrinter();
defaultPrinterOutput.setValue(printerName);
}
// Get the number of copies
int copies = printAction.getCopies().getIntValue(1);
// Check for a valid printFileName or printFile Resource
if (printFileName != null) {
inStream = ActionSequenceResource.getInputStream(printFileName, LocaleHelper.getLocale());
} else if (printFileResource != null) {
try {
inStream = getResourceInputStream(printFileResource);
} catch (FileNotFoundException e) {
return false;
}
} else if (printAction.getReportOutput() != ActionInputConstant.NULL_INPUT) {
inStream = getInputStream(PrinterAction.REPORT_OUTPUT);
} else { // This should never happen if we validated ok.
return false;
}
try {
// Set the input source for sending to the driver.
// InputSource source = new InputSource(inStream);
try {
FopFactory fopFactory = FopFactory.newInstance();
FOUserAgent userAgent = fopFactory.newFOUserAgent();
PrinterJob printerJob = PrinterJob.getPrinterJob();
// Set up our own PrintRenderer instance so we can supply a special PrinterJob instance.
PrintRenderer renderer = new PrintRenderer(printerJob, copies);
renderer.setUserAgent(userAgent);
userAgent.setRendererOverride(renderer);
// Construct fop with desired output format (here, it is set through the user agent)
Fop fop = fopFactory.newFop(userAgent);
// Setup JAXP using identity transformer
TransformerFactory factory = TransformerFactory.newInstance();
Transformer transformer = factory.newTransformer(); // identity transformer
// Setup input stream
Source src = new StreamSource(inStream);
// 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);
} catch (Exception ex) {
return false;
}
} finally {
try {
inStream.close();
} catch (IOException ex) {
// TODO: Provide message here...
ex.printStackTrace();
}
}
return true;
}
/*
* Actual implementation of the rendering process. When a function in this
* module is called, this method is executed with the given inputs. @param
* Sequence[] args (XSL-FO, mime-type, parameters) @param Sequence
* contextSequence (default sequence)
*
* @see org.exist.xquery.BasicFunction#eval(org.exist.xquery.value.Sequence[],
* org.exist.xquery.value.Sequence)
*/
public Sequence eval(Sequence[] args, Sequence contextSequence) throws XPathException {
// gather input XSL-FO document
// if no input document (empty), return empty result as we need data to
// process
if (args[0].isEmpty()) return Sequence.EMPTY_SEQUENCE;
Item inputNode = args[0].itemAt(0);
// get mime-type
String mimeType = args[1].getStringValue();
// get parameters
Properties parameters = new Properties();
if (!args[2].isEmpty()) {
parameters = ModuleUtils.parseParameters(((NodeValue) args[2].itemAt(0)).getNode());
}
try {
// setup a transformer handler
TransformerHandler handler =
TransformerFactoryAllocator.getTransformerFactory(context.getBroker())
.newTransformerHandler();
Transformer transformer = handler.getTransformer();
// set the parameters if any
if (parameters.size() > 0) {
Enumeration keys = parameters.keys();
while (keys.hasMoreElements()) {
String name = (String) keys.nextElement();
String value = parameters.getProperty(name);
transformer.setParameter(name, value);
}
}
// setup the FopFactory
FopFactory fopFactory = FopFactory.newInstance();
if (args.length == 4 && args[3] != null && !args[3].isEmpty()) {
FopConfigurationBuilder cfgBuilder = new FopConfigurationBuilder(context.getBroker());
Configuration cfg = cfgBuilder.buildFromItem(args[3].itemAt(0));
fopFactory.setUserConfig(cfg);
}
// setup the foUserAgent, using given parameters held in the
// transformer handler
FOUserAgent foUserAgent =
setupFOUserAgent(fopFactory.newFOUserAgent(), parameters, transformer);
// create new instance of FOP using the mimetype, the created user
// agent, and the output stream
ByteArrayOutputStream baos = new ByteArrayOutputStream();
Fop fop = fopFactory.newFop(mimeType, foUserAgent, baos);
// Obtain FOP's DefaultHandler
DefaultHandler dh = fop.getDefaultHandler();
// process the XSL-FO
dh.startDocument();
inputNode.toSAX(context.getBroker(), dh, new Properties());
dh.endDocument();
// return the result
return new Base64Binary(baos.toByteArray());
} catch (TransformerException te) {
throw new XPathException(te);
} catch (SAXException se) {
throw new XPathException(se);
}
}
/** @return a new FOUserAgent for FOP */
protected FOUserAgent getFOUserAgent() {
FOUserAgent userAgent = fopFactory.newFOUserAgent();
// Configure foUserAgent as desired
return userAgent;
}
