at.gv.egiz.pdfas.framework.vfilter
Interface VerificationFilter

All Known Implementing Classes:

VerificationFilterImpl

public interface VerificationFilter

Extracts all signatures from a given PDF document or text.

Author:

wprinz

See Also:

VerificationFilterParameters

Method Summary

List	extractSignatureHolders(PdfDataSource pdf, List blocks, VerificationFilterParameters parameters) Extracts the signatures from the given PDF.
List	extractSignaturHolders(TextDataSource text, VerificationFilterParameters parameters) Extracts the text signatures from the given free-text.

Method Detail

extractSignatureHolders

public List extractSignatureHolders(PdfDataSource pdf,
                                    List blocks,
                                    VerificationFilterParameters parameters)
                             throws VerificationFilterException

Extracts the signatures from the given PDF.

Parameters:

pdf - The PDF.

blocks - The List of Incremental Update blocks. Usually this comes from a preprocessing step.

parameters - The algorithm parameters.

Returns:

Returns a List of SignatureHolders containing the signatures. May be empty in case no signatures have been found.

Throws:

VerificationFilterException - Thrown if something goes wrong.

extractSignaturHolders

public List extractSignaturHolders(TextDataSource text,
                                   VerificationFilterParameters parameters)
                            throws VerificationFilterException

Extracts the text signatures from the given free-text.

Parameters:

text - The free-text.

parameters - The algorithm parameters.

Returns:

Returns a List of SignatureHolders containing the signatures. May be empty in case no signatures have been found.

Throws:

VerificationFilterException - Thrown if something goes wrong.