Example usage for com.lowagie.text.pdf PdfReader getStreamBytes

Introduction

In this page you can find the example usage for com.lowagie.text.pdf PdfReader getStreamBytes.

Prototype

public static byte[] getStreamBytes(PRStream stream) throws IOException 

Source Link

Document

Get the content from a stream applying the required filters.

Usage

From source file:net.sqs2.omr.master.sqm.PDFAttachmentExtractor.java

License:Apache License

/**
 * Unpacks a file attachment./*from   ww w.  ja v  a  2 s  .  co m*/
 * 
 * @param reader
 *            The object that reads the PDF document
 * @param filespec
 *            The dictionary containing the file specifications
 * @param outPath
 *            The path where the attachment has to be written
 * @throws IOException
 */
private static byte[] unpackFile(PdfReader reader, PdfDictionary filespec, String suffix) throws IOException {
    if (filespec == null) {
        return null;
    }
    PdfName type = (PdfName) PdfReader.getPdfObject(filespec.get(PdfName.TYPE));
    if (!PdfName.F.equals(type) && !PdfName.FILESPEC.equals(type)) {
        return null;
    }
    PdfDictionary ef = (PdfDictionary) PdfReader.getPdfObject(filespec.get(PdfName.EF));
    if (ef == null) {
        return null;
    }
    PdfString fn = (PdfString) PdfReader.getPdfObject(filespec.get(PdfName.F));
    if (fn == null) {
        return null;
    }
    File fLast = new File(fn.toUnicodeString());
    String filename = fLast.getName();

    if (!filename.endsWith(suffix)) {
        return null;
    }

    PRStream prs = (PRStream) PdfReader.getPdfObject(ef.get(PdfName.F));
    if (prs == null) {
        return null;
    }
    return PdfReader.getStreamBytes(prs);
}

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From source file:org.kuali.coeus.propdev.impl.budget.subaward.PropDevPropDevBudgetSubAwardServiceImpl.java

License:Open Source License

/**
 * Unpacks a file attachment./*  www. jav a 2 s.c  o  m*/
 * @param reader The object that reads the PDF document
 * @param filespec The dictonary containing the file specifications
 * @throws IOException
 */

protected static Object[] unpackFile(PdfReader reader, PdfDictionary filespec) throws IOException {
    Object arr[] = new Object[2]; //use to store name and file bytes
    if (filespec == null) {
        return null;
    }

    PdfName type = (PdfName) PdfReader.getPdfObject(filespec.get(PdfName.TYPE));
    if (!PdfName.F.equals(type) && !PdfName.FILESPEC.equals(type)) {
        return null;
    }

    PdfDictionary ef = (PdfDictionary) PdfReader.getPdfObject(filespec.get(PdfName.EF));
    if (ef == null) {
        return null;
    }

    PdfString fn = (PdfString) PdfReader.getPdfObject(filespec.get(PdfName.F));
    if (fn == null) {
        return null;
    }

    File fLast = new File(fn.toUnicodeString());
    PRStream prs = (PRStream) PdfReader.getPdfObject(ef.get(PdfName.F));
    if (prs == null) {
        return null;
    }

    byte attachmentByte[] = PdfReader.getStreamBytes(prs);
    arr[0] = fLast.getName();
    arr[1] = attachmentByte;

    return arr;

}

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From source file:org.kuali.coeus.propdev.impl.s2s.S2sUserAttachedFormServiceImpl.java

License:Open Source License

/**
 * Unpacks a file attachment./*from  www  .  j  a  v  a2  s  .  co m*/
 * @param filespec
 *            The dictonary containing the file specifications
 * @throws IOException
 */
private Object[] unpackFile(PdfDictionary filespec) throws IOException {

    if (filespec == null)
        return null;

    PdfName type = (PdfName) PdfReader.getPdfObject(filespec.get(PdfName.TYPE));

    if (!PdfName.F.equals(type) && !PdfName.FILESPEC.equals(type))
        return null;

    PdfDictionary ef = (PdfDictionary) PdfReader.getPdfObject(filespec.get(PdfName.EF));
    if (ef == null)
        return null;

    PdfString fn = (PdfString) PdfReader.getPdfObject(filespec.get(PdfName.F));
    if (fn == null)
        return null;

    File fLast = new File(fn.toUnicodeString());

    PRStream prs = (PRStream) PdfReader.getPdfObject(ef.get(PdfName.F));
    if (prs == null)
        return null;

    byte attachmentByte[] = PdfReader.getStreamBytes(prs);
    Object[] fileInfo = new Object[2];
    fileInfo[0] = fLast.getName();
    fileInfo[1] = attachmentByte;
    return fileInfo;
}

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From source file:org.kuali.kra.s2s.service.impl.S2SUserAttachedFormServiceImpl.java

License:Educational Community License

/**
 * Unpacks a file attachment./*  www .  ja v  a  2s  .  co m*/
 *
 * @param reader
 *            The object that reads the PDF document
 * @param filespec
 *            The dictonary containing the file specifications
 * @throws IOException
 */
private Object[] unpackFile(PdfReader reader, PdfDictionary filespec) throws IOException {
    S2sUserAttachedFormAtt userAttachedS2SFormAttachmentBean = new S2sUserAttachedFormAtt();

    if (filespec == null)
        return null;

    PdfName type = (PdfName) PdfReader.getPdfObject(filespec.get(PdfName.TYPE));

    if (!PdfName.F.equals(type) && !PdfName.FILESPEC.equals(type))
        return null;

    PdfDictionary ef = (PdfDictionary) PdfReader.getPdfObject(filespec.get(PdfName.EF));
    if (ef == null)
        return null;

    PdfString fn = (PdfString) PdfReader.getPdfObject(filespec.get(PdfName.F));
    if (fn == null)
        return null;

    File fLast = new File(fn.toUnicodeString());

    PRStream prs = (PRStream) PdfReader.getPdfObject(ef.get(PdfName.F));
    if (prs == null)
        return null;

    byte attachmentByte[] = PdfReader.getStreamBytes(prs);
    Object[] fileInfo = new Object[2];
    fileInfo[0] = fLast.getName();
    fileInfo[1] = attachmentByte;
    return fileInfo;
}

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From source file:org.pdfsam.console.business.pdf.handlers.UnpackCmdExecutor.java

License:Open Source License

/**
 * Unpack//  w w w  . j a  v a  2s  . c  o m
 * @param filespec the dictionary
 * @param outPath output directory
 * @param overwrite if true overwrite if already exists
 * @return number of unpacked files
 * @throws IOException
 */
private int unpackFile(PdfDictionary filespec, File outPath, boolean overwrite) throws IOException {
    int retVal = 0;
    if (filespec != null) {
        PdfName type = (PdfName) PdfReader.getPdfObject(filespec.get(PdfName.TYPE));
        if (PdfName.F.equals(type) || PdfName.FILESPEC.equals(type)) {
            PdfDictionary ef = (PdfDictionary) PdfReader.getPdfObject(filespec.get(PdfName.EF));
            PdfString fn = (PdfString) PdfReader.getPdfObject(filespec.get(PdfName.F));
            if (fn != null && ef != null) {
                LOG.debug("Unpacking file " + fn + " to " + outPath);
                File fLast = new File(fn.toUnicodeString());
                File fullPath = new File(outPath, fLast.getName());
                if (fullPath.exists()) {
                    //check if overwrite is allowed
                    if (overwrite) {
                        if (!fullPath.delete()) {
                            LOG.warn("Unable to overwrite " + fullPath.getAbsolutePath()
                                    + ", unable to unpack.");
                        }
                    } else {
                        LOG.warn("Cannot overwrite " + fullPath.getAbsolutePath()
                                + " (overwrite is false), unable to unpack.");
                    }
                } else {
                    PRStream prs = (PRStream) PdfReader.getPdfObject(ef.get(PdfName.F));
                    if (prs != null) {
                        byte b[] = PdfReader.getStreamBytes(prs);
                        FileOutputStream fout = new FileOutputStream(fullPath);
                        fout.write(b);
                        fout.close();
                        retVal = 1;
                    }
                }
            }
        }
    }
    return retVal;
}

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From source file:org.sejda.impl.itext.component.PdfUnpacker.java

License:Apache License

private File copyToTemporaryFile(PRStream prs) throws TaskIOException {
    File tmpFile = createTemporaryBuffer();
    LOG.debug("Created output temporary buffer {}", tmpFile);

    ByteArrayInputStream inputStream = null;
    try {//  w w  w  .  j  a v  a  2s . co  m
        inputStream = new ByteArrayInputStream(PdfReader.getStreamBytes(prs));
        FileUtils.copyInputStreamToFile(inputStream, tmpFile);
        LOG.debug("Attachment unpacked to temporary buffer");
    } catch (IOException e) {
        throw new TaskIOException("Unable to copy attachment to temporary file.", e);
    } finally {
        IOUtils.closeQuietly(inputStream);
    }
    return tmpFile;
}

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From source file:questions.forms.ReadXfa.java

public static void main(String[] args) {
    try {/*from   ww  w  . j a v  a 2s.com*/
        PdfReader reader = new PdfReader(RESOURCE);
        FileOutputStream os = new FileOutputStream(RESULT);
        PdfDictionary root = reader.getCatalog();
        PdfDictionary acroform = root.getAsDict(PdfName.ACROFORM);
        PdfArray xfa = acroform.getAsArray(PdfName.XFA);
        for (int i = 0; i < xfa.size(); i += 2) {
            System.out.println("Reading: " + xfa.getAsString(i));
            PRStream s = (PRStream) xfa.getAsStream(i + 1);
            os.write(PdfReader.getStreamBytes(s));
        }
        os.flush();
        os.close();
    } catch (IOException e) {
        e.printStackTrace();
    }
}

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From source file:questions.metadata.ReplaceXMP.java

public static void alterXmp1() {
    try {//  w  ww  .  java2  s. c o  m
        PdfReader reader = new PdfReader(ORIGINAL);
        PdfDictionary catalog = reader.getCatalog();
        PdfObject obj = catalog.get(PdfName.METADATA);
        PRStream stream = (PRStream) PdfReader.getPdfObject(obj);
        String metadata = new String(PdfReader.getStreamBytes(stream));
        metadata = metadata.replaceAll("Hello World", "Hello Universe");
        stream.setData(metadata.getBytes(), false);
        PdfStamper stamper = new PdfStamper(reader, new FileOutputStream(RESULT1));
        stamper.close();
    } catch (IOException e) {
        e.printStackTrace();
    } catch (DocumentException e) {
        e.printStackTrace();
    }
}

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