Example usage for org.apache.pdfbox.pdmodel PDDocumentCatalog getPageLayout

Introduction

In this page you can find the example usage for org.apache.pdfbox.pdmodel PDDocumentCatalog getPageLayout.

Prototype

public PageLayout getPageLayout() 

Source Link

Document

Returns the page layout.

Usage

From source file:org.nuxeo.pdf.PDFInfo.java

License:Open Source License

/**
 * After building the object with the correct constructor, and after
 * possibly having set some parsing property (<code>setParseWithXMP()</code>
 * for example), this method will extract the information from the PDF.
 * <p>/*from   w w  w.  j a v  a  2 s.co  m*/
 * After extraction, caller get the info: Either all of them (
 * <code>toHashMap()</code> or <code>toString()</code>) or individual info
 * (see all getters)
 *
 * @throws ClientException
 *
 * @since 5.9.5
 */
public void run() throws ClientException {

    // In case the caller calls several time the run() method
    if (!alreadyParsed) {

        fileName = pdfBlob.getFilename();
        // Getting the file size os ok only if the blob is already backed by
        // a
        // File. If it is pure Stream, we give up
        File pdfFile = BlobHelper.getFileFromBlob(pdfBlob);
        if (pdfFile == null) {
            fileSize = -1;
        } else {
            fileSize = pdfFile.length();
        }

        try {
            pdfDoc = PDDocument.load(pdfBlob.getStream());

            isEncrypted = pdfDoc.isEncrypted();
            if (isEncrypted) {
                pdfDoc.openProtection(new StandardDecryptionMaterial(password));
            }

            numberOfPages = pdfDoc.getNumberOfPages();
            PDDocumentCatalog docCatalog = pdfDoc.getDocumentCatalog();
            pageLayout = checkNotNull(docCatalog.getPageLayout());
            pdfVersion = "" + pdfDoc.getDocument().getVersion();

            PDDocumentInformation docInfo = pdfDoc.getDocumentInformation();
            author = checkNotNull(docInfo.getAuthor());
            contentCreator = checkNotNull(docInfo.getCreator());
            keywords = checkNotNull(docInfo.getKeywords());
            creationDate = docInfo.getCreationDate();
            modificationDate = docInfo.getModificationDate();
            producer = checkNotNull(docInfo.getProducer());
            subject = checkNotNull(docInfo.getSubject());
            title = checkNotNull(docInfo.getTitle());

            // Getting dimension is a bit tricky
            mediaBoxWidthInPoints = -1;
            mediaBoxHeightInPoints = -1;
            cropBoxWidthInPoints = -1;
            cropBoxHeightInPoints = -1;
            List<PDPage> allPages = docCatalog.getAllPages();
            boolean gotMediaBox = false;
            boolean gotCropBox = false;
            for (PDPage page : allPages) {

                if (page != null) {
                    PDRectangle r = page.findMediaBox();
                    if (r != null) {
                        mediaBoxWidthInPoints = r.getWidth();
                        mediaBoxHeightInPoints = r.getHeight();
                        gotMediaBox = true;
                    }
                    r = page.findCropBox();
                    if (r != null) {
                        cropBoxWidthInPoints = r.getWidth();
                        cropBoxHeightInPoints = r.getHeight();
                        gotCropBox = true;
                    }
                }
                if (gotMediaBox && gotCropBox) {
                    break;
                }
            }

            if (doXMP) {
                xmp = null;
                PDMetadata metadata = docCatalog.getMetadata();
                if (metadata != null) {
                    xmp = "";
                    InputStream xmlInputStream = metadata.createInputStream();

                    InputStreamReader isr = new InputStreamReader(xmlInputStream);
                    BufferedReader reader = new BufferedReader(isr);
                    String line;
                    do {
                        line = reader.readLine();
                        if (line != null) {
                            xmp += line + "\n";
                        }
                    } while (line != null);
                    reader.close();
                }
            }

        } catch (IOException | BadSecurityHandlerException | CryptographyException e) {
            throw new ClientException(/*
                                       * "Cannot get PDF info: " +
                                       * e.getMessage(),
                                       */e);
        } finally {
            if (pdfDoc != null) {
                try {
                    pdfDoc.close();
                } catch (IOException e) {
                    // Ignore
                }
                pdfDoc = null;
            }
            alreadyParsed = true;
        }
    }
}

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