private static PDEmbeddedFile getEmbeddedFile(PDComplexFileSpecification fileSpec)
{
PDEmbeddedFile embeddedFileUnicode = null;
if (fileSpec != null)
{
embeddedFileUnicode = fileSpec.getEmbeddedFileUnicode() ?? fileSpec.getEmbeddedFileDos() ?? fileSpec.getEmbeddedFileMac() ?? fileSpec.getEmbeddedFileUnix() ?? fileSpec.getEmbeddedFile();
}
return(embeddedFileUnicode);
}
/**
* Extracts a ZUGFeRD invoice from a PDF document represented by an input stream.
* Errors are reported via exception handling.
*/
public void extractLowLevel(InputStream pdfStream)
{
PDDocument doc = null;
try
{
doc = PDDocument.load(pdfStream);
// PDDocumentInformation info = doc.getDocumentInformation();
PDDocumentNameDictionary names = new PDDocumentNameDictionary(
doc.getDocumentCatalog());
PDEmbeddedFilesNameTreeNode etn;
etn = names.getEmbeddedFiles();
if (etn == null)
{
doc.close();
return;
}
//Set efMap = etn.getNames().keySet();
Object[] efMap = etn.getNames().keySet().toArray();
//Map<String, COSObjectable> efMap = etn.getNames();
// String filePath = "/tmp/";
//for (String filename : efMap.keySet()) {
foreach (String filename in efMap)
{
///**
//* currently (in the release candidate of version 1) only one
//* attached file with the name ZUGFeRD-invoice.xml is allowed
//* */
if (filename.Equals("ZUGFeRD-invoice.xml"))
{ //$NON-NLS-1$
containsMeta = true;
PDComplexFileSpecification fileSpec = (PDComplexFileSpecification)etn.getNames().get(filename);
PDEmbeddedFile embeddedFile = fileSpec.getEmbeddedFile();
// String embeddedFilename = filePath + filename;
// File file = new File(filePath + filename);
// System.out.println("Writing " + embeddedFilename);
// ByteArrayOutputStream fileBytes=new
// ByteArrayOutputStream();
// FileOutputStream fos = new FileOutputStream(file);
rawXML = embeddedFile.getByteArray();
setMeta(Encoding.UTF8.GetString(rawXML));
// fos.write(embeddedFile.getByteArray());
// fos.close();
}
}
}
catch (IOException e1)
{
throw e1;
}
finally
{
try
{
if (doc != null)
{
doc.close();
}
}
catch (IOException e) { }
}
}