Example usage for com.itextpdf.text.io FileChannelRandomAccessSource FileChannelRandomAccessSource

Introduction

In this page you can find the example usage for com.itextpdf.text.io FileChannelRandomAccessSource FileChannelRandomAccessSource.

Prototype

public FileChannelRandomAccessSource(FileChannel channel) throws IOException 

Source Link

Document

Constructs a new FileChannelRandomAccessSource based on the specified FileChannel.

Usage

From source file:com.ephesoft.dcma.imagemagick.impl.ITextPDFCreator.java

License:Open Source License

/**
 * Converts specified tiff file into pdf.
 * /*from  w  w w .  j  av a 2  s . c om*/
 * @param tiffFile{@link File} to be converted into pdf.
 * @throws DCMAApplicationException if any error occurs while conversion.
 */
public static void convertTiffIntoPdf(final File tiffFile) throws DCMAApplicationException {
    if (null == tiffFile) {
        LOGGER.error("Unable to convert tiff file as specified file is null.");
    } else {
        com.itextpdf.text.Document document = null;
        RandomAccessFile randomAccessFile = null;
        RandomAccessFileOrArray randomAccessFileOrArray = null;
        FileChannelRandomAccessSource fileChannelRandomAccessSource = null;
        try {
            final String tiffFilePath = tiffFile.getAbsolutePath();
            if (tiffFilePath.endsWith(FileType.TIF.getExtensionWithDot())
                    || tiffFilePath.endsWith(FileType.TIFF.getExtensionWithDot())) {
                randomAccessFile = new RandomAccessFile(tiffFile, ICommonConstants.READ_MODE);
                fileChannelRandomAccessSource = new FileChannelRandomAccessSource(
                        randomAccessFile.getChannel());
                document = new com.itextpdf.text.Document();
                final int lastIndexofTiffExtension = tiffFilePath.toLowerCase()
                        .lastIndexOf(FileType.TIF.getExtensionWithDot());
                PdfWriter.getInstance(document,
                        new FileOutputStream(EphesoftStringUtil.concatenate(
                                tiffFilePath.substring(0, lastIndexofTiffExtension),
                                FileType.PDF.getExtensionWithDot())));
                document.open();
                randomAccessFileOrArray = new RandomAccessFileOrArray(fileChannelRandomAccessSource);
                final int pageCount = TiffImage.getNumberOfPages(randomAccessFileOrArray);
                Image image;
                for (int index = 1; index <= pageCount; index++) {
                    image = TiffImage.getTiffImage(randomAccessFileOrArray, index);
                    final Rectangle pageSize = new Rectangle(image.getWidth(), image.getHeight());
                    document.setPageSize(pageSize);
                    document.newPage();
                    document.add(image);
                }
                LOGGER.info(EphesoftStringUtil.concatenate(tiffFilePath, " successfully converted into PDF."));
            } else {
                LOGGER.error("Unable to convert as specified file is not a valid tiff file.");
            }
        } catch (final DocumentException e) {
            LOGGER.error("DocumentException is occurred while processing specified tiff file for conversion.");
            throw new DCMAApplicationException(EphesoftStringUtil
                    .concatenate("DocumentException occured while generating PDF", e.getMessage()), e);
        } catch (final IOException e) {
            LOGGER.error("IOException is occurred while processing specified tiff file for conversion.");
            throw new DCMAApplicationException(
                    EphesoftStringUtil.concatenate("IOException occured while generating PDF", e.getMessage()),
                    e);
        } finally {
            FileUtils.closeStream(randomAccessFileOrArray);
            FileUtils.closeFileChannelRandomAccessSource(fileChannelRandomAccessSource);
            FileUtils.closeResource(randomAccessFile);
            document.close();
        }

    }
}

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From source file:org.h819.commons.file.MyPDFUtils.java

/**
 *  PdfReader ? pdf  pdf ???/* www .  j av  a  2s  .  c om*/
 *
 * @param pdfFile ? pdf 
 * @return PdfReader 
 * @throws IOException
 */
public static PdfReader getPdfReader(File pdfFile) throws IOException {

    Document.plainRandomAccess = true;
    FileInputStream fileStream = new FileInputStream(pdfFile);
    return new PdfReader(
            new RandomAccessFileOrArray(new FileChannelRandomAccessSource(fileStream.getChannel())), null);

}

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From source file:org.h819.commons.file.MyPDFUtils.java

/**
 *  PdfReader ? pdf  pdf ??/*from   w w  w. j a  v  a 2  s. c  om*/
 *
 * @param pdfFile       ? pdf 
 * @param ownerPassword ?
 * @return
 * @throws IOException
 */
public static PdfReader getPdfReader(File pdfFile, String ownerPassword) throws IOException {

    FileInputStream fileStream = new FileInputStream(pdfFile);

    if (ownerPassword == null)
        return getPdfReader(pdfFile);

    return new PdfReader(
            new RandomAccessFileOrArray(new FileChannelRandomAccessSource(fileStream.getChannel())),
            ownerPassword.getBytes());
}

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