@Override
public void before(EncryptParameters parameters) {
totalSteps = parameters.getSourceList().size();
sourceOpener = PdfSourceOpeners.newPartialReadOpener();
outputWriter = OutputWriters.newMultipleOutputWriter(parameters.isOverwrite());
for (PdfAccessPermission permission : parameters.getPermissions()) {
permissions |= getAccessPermission(permission);
}
}
@Override
public void execute(EncryptParameters parameters) throws TaskException {
int currentStep = 0;
for (PdfSource<?> source : parameters.getSourceList()) {
currentStep++;
LOG.debug("Opening {} ", source);
reader = source.open(sourceOpener);
File tmpFile = createTemporaryPdfBuffer();
LOG.debug("Created output temporary buffer {} ", tmpFile);
stamperHandler = new PdfStamperHandler(reader, tmpFile, parameters.getVersion());
stamperHandler.setCompressionOnStamper(parameters.isCompress());
stamperHandler.setCreatorOnStamper(reader);
stamperHandler.setEncryptionOnStamper(
getEncryptionAlgorithm(parameters.getEncryptionAlgorithm()),
parameters.getUserPassword(),
parameters.getOwnerPassword(),
permissions);
nullSafeClosePdfReader(reader);
nullSafeCloseQuietly(stamperHandler);
String outName =
nameGenerator(parameters.getOutputPrefix())
.generate(nameRequest().originalName(source.getName()).fileNumber(currentStep));
outputWriter.addOutput(file(tmpFile).name(outName));
notifyEvent(getNotifiableTaskMetadata()).stepsCompleted(currentStep).outOf(totalSteps);
}
parameters.getOutput().accept(outputWriter);
LOG.debug("Input documents encrypted and written to {}", parameters.getOutput());
LOG.debug("Permissions {}", PdfEncryptor.getPermissionsVerbose(permissions));
}