public List<PdfDocumentDescriptor> load(List<PdfDocumentDescriptor> toLoad) {
LOG.debug(DefaultI18nContext.getInstance().i18n("Loading documents"));
List<PdfDocumentDescriptor> loaded = new ArrayList<>(toLoad.size());
for (PdfDocumentDescriptor current : toLoad) {
PdfDocumentDescriptor copy = newCopy(current);
PdfReader reader = null;
try {
reader = current.toPdfSource().open(PdfSourceOpeners.newPartialReadOpener());
copy.setEncryptionStatus(EncryptionStatus.NOT_ENCRYPTED);
copy.setPages(reader.getNumberOfPages());
copy.setVersion(String.format("1.%c", reader.getPdfVersion()));
@SuppressWarnings("unchecked")
Map<String, String> meta = reader.getInfo();
for (PdfMetadataKey key : PdfMetadataKey.values()) {
copy.addMedatada(key, defaultString(meta.get(key.getKey())));
}
loaded.add(copy);
} catch (TaskWrongPasswordException twpe) {
copy.setEncryptionStatus(EncryptionStatus.ENCRYPTED);
loaded.add(copy);
LOG.warn(String.format("Owner password required %s", current.getFileName()), twpe);
} catch (Exception e) {
LOG.error(
String.format("An error occured loading the document %s", current.getFileName()), e);
} finally {
nullSafeClosePdfReader(reader);
}
}
LOG.debug(DefaultI18nContext.getInstance().i18n("Documents loaded"));
return loaded;
}
/* (non-Javadoc)
* @see de.offis.health.icardea.cied.pdf.interfaces.PDFExtractor#getTitle()
*/
public String getTitle() {
/*
* Key = "Title"
*/
String title = null;
if (pdfReader != null) {
Map<?, ?> info = pdfReader.getInfo();
title = (String) info.get("Title");
} // end if
return title;
}
/* (non-Javadoc)
* @see de.offis.health.icardea.cied.pdf.interfaces.PDFExtractor#getSubject()
*/
public String getSubject() {
/*
* Key = "Subject"
*/
String subject = null;
if (pdfReader != null) {
Map<?, ?> info = pdfReader.getInfo();
subject = (String) info.get("Subject");
} // end if
return subject;
}
/* (non-Javadoc)
* @see de.offis.health.icardea.cied.pdf.interfaces.PDFExtractor#getKeywords()
*/
public String getKeywords() {
/*
* Key = "Keywords"
*/
String keywords = null;
if (pdfReader != null) {
Map<?, ?> info = pdfReader.getInfo();
keywords = (String) info.get("Keywords");
} // end if
return keywords;
}
/* (non-Javadoc)
* @see de.offis.health.icardea.cied.pdf.interfaces.PDFExtractor#getCreator()
*/
public String getCreator() {
/*
* Key = "Creator"
*/
String creator = null;
if (pdfReader != null) {
Map<?, ?> info = pdfReader.getInfo();
creator = (String) info.get("Creator");
} // end if
return creator;
}
/* (non-Javadoc)
* @see de.offis.health.icardea.cied.pdf.interfaces.PDFExtractor#getAuthor()
*/
public String getAuthor() {
/*
* Key = "Author"
*/
String author = null;
if (pdfReader != null) {
Map<?, ?> info = pdfReader.getInfo();
author = (String) info.get("Author");
} // end if
return author;
}
/* (non-Javadoc)
* @see de.offis.health.icardea.cied.pdf.interfaces.PDFExtractor#getProducer()
*/
public String getProducer() {
/*
* Key = "Producer"
*
* Samples of format (key=value):
* Producer=iText by lowagie.com (r0.94 - paulo 102)
*/
String producer = null;
if (pdfReader != null) {
Map<?, ?> info = pdfReader.getInfo();
producer = (String) info.get("Producer");
} // end if
return producer;
}
/* (non-Javadoc)
* @see de.offis.health.icardea.cied.pdf.interfaces.PDFExtractor#getModificationDate()
*/
public String getModificationDate() {
/*
* Key = "ModDate"
*
* Samples of format (key=value):
* ModDate=D:20100415143436Z
* ModDate=D:20100415174640+02'00'
*/
String modificationDate = null;
if (pdfReader != null) {
Map<?, ?> info = pdfReader.getInfo();
// TODO: Fix the format of the date to ISO8601 timestamp
modificationDate = (String) info.get("ModDate");
} // end if
return modificationDate;
}
/**
* Reads a PDF file for retrieving its metadata.
*
* @param file File
*/
public void createTextFromPDF(File file) {
if (file.exists()) {
int page = 1;
PdfReader reader = null;
try {
reader = new PdfReader(new RandomAccessFileOrArray(file.getAbsolutePath()), null);
HashMap<String, String> pdfinfo = reader.getInfo();
StringBuffer sb = new StringBuffer();
sb.append("<html>=== Document Information ===<p>");
sb.append(
reader.getCropBox(page).getHeight() + "*" + reader.getCropBox(page).getWidth() + "<p>");
sb.append("PDF Version: " + reader.getPdfVersion() + "<p>");
sb.append("Number of pages: " + reader.getNumberOfPages() + "<p>");
sb.append("Number of PDF objects: " + reader.getXrefSize() + "<p>");
sb.append("File length: " + reader.getFileLength() + "<p>");
sb.append("Encrypted= " + reader.isEncrypted() + "<p>");
if (pdfinfo.get("Title") != null) {
sb.append("Title= " + pdfinfo.get("Title") + "<p>");
}
if (pdfinfo.get("Author") != null) {
sb.append("Author= " + pdfinfo.get("Author") + "<p>");
}
if (pdfinfo.get("Subject") != null) {
sb.append("Subject= " + pdfinfo.get("Subject") + "<p>");
}
if (pdfinfo.get("Producer") != null) {
sb.append("Producer= " + pdfinfo.get("Producer") + "<p>");
}
if (pdfinfo.get("ModDate") != null) {
sb.append("ModDate= " + PdfDate.decode(pdfinfo.get("ModDate")).getTime() + "<p>");
}
if (pdfinfo.get("CreationDate") != null) {
sb.append(
"CreationDate= " + PdfDate.decode(pdfinfo.get("CreationDate")).getTime() + "<p>");
}
sb.append("</html>");
label.setText(sb.toString());
} catch (IOException ex) {
label.setText("");
}
}
}
/**
* This method will return the key and value pairs stored in the PDF information. It's the basic
* information like title, subject, author, creator, keywords, producer (meaning application) as
* well as creation and modification date. The method is provided for debugging purposes.
*
* @return Returns <code>key=value</code> pair line by line (using system dependent newline).
*/
@SuppressWarnings("unused")
private String getPdfInfo() {
StringBuffer stringBuffer = new StringBuffer();
if (pdfReader != null) {
Map<?, ?> info = pdfReader.getInfo();
String key;
String value;
Iterator<?> iterator = info.keySet().iterator();
while (iterator.hasNext()) {
key = (String) iterator.next();
value = (String) info.get(key);
stringBuffer.append(key);
stringBuffer.append("=");
stringBuffer.append(value);
stringBuffer.append(GlobalTools.LINESEPARATOR);
} // end while
} // end if
return stringBuffer.toString();
}
