/**
*
* In prepareSign, the document text is extracted and normalized. *
** In finishSign, the signed SignatureObject is transformed into a Signature * block, which is then written as an Incremental Update. *
* * @author wprinz */ public class TextualSignator_1_0_0 implements Signator { /** * The Pdf-AS ID of this Signator. */ public static final PdfASID MY_ID = new PdfASID(SignatorFactory.VENDOR, SignatorFactory.TYPE_TEXTUAL, SignatorFactory.VERSION_1_0_0); /** * @see at.knowcenter.wag.egov.egiz.framework.Signator#getMyId() */ public PdfASID getMyId() { return MY_ID; } /** * Default constructor. */ public TextualSignator_1_0_0() { // Default constructor. } /** ** The parameter has_SIG_ID is not used by this Signator because it doesn't * pre-format the signature block. *
* * @see at.gv.egiz.pdfas.framework.signator.Signator#prepareSign(at.gv.egiz.pdfas.framework.input.PdfDataSource, * java.lang.String, at.knowcenter.wag.egov.egiz.pdf.TablePos, boolean) */ public SignatorInformation prepareSign(PdfDataSource pdfDataSource, String profile, TablePos pos, boolean has_SIG_ID) throws SignatorException { try { TextualSignatorInformation tsi = new TextualSignatorInformation(); tsi.originalDocument = pdfDataSource; tsi.profile = profile; tsi.pos = pos; String document_text = PdfAS.extractNormalizedTextTextual(pdfDataSource); // logger_.debug("signed_text = " + document_text); DataSource ds = new TextDataSourceImpl(document_text); tsi.signatureData = new SignatureDataImpl(ds, "text/plain", "UTF-8"); return tsi; } catch (PresentableException pe) { throw new SignatorException(pe); } } /** * @see at.gv.egiz.pdfas.framework.signator.Signator#finishSign(at.gv.egiz.pdfas.framework.signator.SignatorInformation, * at.gv.egiz.pdfas.framework.output.DataSink) */ public void finishSign(SignatorInformation signatorInformation, DataSink dataSink) throws SignatorException { try { TextualSignatorInformation tsi = (TextualSignatorInformation) signatorInformation; // PdfAS.prefixID(iui.signed_signature_object, PdfAS.TEXT_ID); // iui.signed_signature_object.kz = getMyId().toString(); tsi.signSignatureObject.kz = getMyId().toString(); // TODO what is this for? SignatureObject so = SignatureObjectHelper.convertSignSignatureObjectToSignatureObject(tsi.signSignatureObject, tsi.profile); PdfPTable pdf_table = PdfAS.createPdfPTableFromSignatureObject(so); PositioningInstruction pi = PdfAS.determineTablePositioning(tsi.pos, tsi.profile, tsi.originalDocument, pdf_table); IncrementalUpdateHelper.writeIncrementalUpdateToDataSink(tsi.originalDocument, dataSink, pdf_table, pi); // OutputStream os = dataSink.createOutputStream(PdfAS.PDF_MIME_TYPE); // os.write(signed_iui.signed_pdf); // os.close(); // SignResult sign_result = new SignResult(PdfAS.PDF_MIME_TYPE, signed_iui.signed_pdf); // return sign_result; } catch (PresentableException pe) { throw new SignatorException(pe); } // catch (IOException e) // { // throw new SignatorException(ErrorCode.DOCUMENT_CANNOT_BE_READ, e); // } } }