Portfolio Capture Example

// open the url
Document document = new Document();

// setup threads to handle image capture.
ExecutorService executorService = Executors.newFixedThreadPool(8);
document.setFile(filePath);
// A fileNames tree indicates that we have a portfolio.
if (document.getCatalog().getNames() != null &&
        document.getCatalog().getNames().getEmbeddedFilesNameTree() != null && 
        catalog.getNames().getEmbeddedFilesNameTree().getRoot() != null) {
    NameTree embeddedFilesNameTree = document.getCatalog().getNames().getEmbeddedFilesNameTree();
    // one final check as some docs will have meta data but will specify a page mode.
    if (catalog.getObject(Catalog.PAGEMODE_KEY) == null ||
                ((Name) catalog.getObject(Catalog.PAGEMODE_KEY)).getName().equalsIgnoreCase("UseAttachments")) {
        if (embeddedFilesNameTree.getRoot() != null) {
            Library library = document.getCatalog().getLibrary();
            List filePairs = embeddedFilesNameTree.getRoot().getNamesAndValues();
            List<Callable<Void>> callables =
                    new ArrayList<Callable<Void>>(filePairs.size() / 2);
            // queue up the embedded documents
            for (int i = 0, max = filePairs.size(); i < max; i += 2) {
                // file name and file specification pairs.
                String fileName = Utils.convertStringObject(library, (StringObject) filePairs.get(i));
                HashMap tmp = (HashMap) library.getObject((Reference) filePairs.get(i + 1));

               // file specification has the document stream
               FileSpecification fileSpec = new FileSpecification(library, tmp);
               tmp = fileSpec.getEmbeddedFileDictionary();

               // create the stream instance from the embedded file streams File entry.
               Reference fileRef = (Reference) tmp.get(FileSpecification.F_KEY);
               Stream fileStream = (Stream) library.getObject(fileRef);
               InputStream fileInputStream = fileStream.getDecodedByteArrayInputStream();

               // queue the embedded document for page capture
               System.out.println("Loading embedded file: " + fileName);
               Document embeddedDocument = new Document();
               embeddedDocument.setInputStream(fileInputStream, fileName);
               callables.add(new CaptureDocument(embeddedDocument, i, fileName));
           }
           executorService.invokeAll(callables);
           executorService.submit(new DocumentCloser(document)).get();
        }
    }
}