Class FieldMDPSelectiveComputation

java.lang.Object

br.ufsc.labsec.incrementalupdate.selective.FieldMDPSelectiveComputation

All Implemented Interfaces:

SelectiveComputation

public class FieldMDPSelectiveComputation
extends Object
implements SelectiveComputation

Verifica restrições FieldMDP em atualizações incrementais de campos do PDF.

A regra FieldMDP define quais campos devem permanecer protegidos após a assinatura que estabeleceu a restrição.

Nested Class Summary

Nested classes/interfaces inherited from interface SelectiveComputation

SelectiveComputation.Change, SelectiveComputation.Selectiveness

Constructor Summary

Constructors

Constructor	Description
FieldMDPSelectiveComputation(org.apache.pdfbox.cos.COSBase reference, int signatureIndex, org.apache.pdfbox.pdmodel.PDDocument document, boolean icpBrRules, boolean protectVisualRepresentation)

Method Summary

Modifier and Type	Method	Description
boolean	allows(SelectiveComputation.Change change)
org.apache.pdfbox.pdmodel.PDDocument	getDocument()
byte[]	getFieldBytes()
float	getPDFVersion()
int	getSignatureIndex()
boolean	hasFieldBytes()
boolean	protects(org.apache.pdfbox.cos.COSBase field)	Indica se o campo informado está protegido pela regra FieldMDP.
boolean	protectVisualRepresentation()
boolean	selectiveness(SelectiveComputation.Selectiveness selectiveness)
void	setFieldBytes(byte[] fieldBytes)
boolean	useIcpBrRules()

Methods inherited from class Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

FieldMDPSelectiveComputation

public FieldMDPSelectiveComputation(org.apache.pdfbox.cos.COSBase reference,
 int signatureIndex,
 org.apache.pdfbox.pdmodel.PDDocument document,
 boolean icpBrRules,
 boolean protectVisualRepresentation)
                             throws IOException

Throws:

IOException

Method Details

getSignatureIndex

public int getSignatureIndex()

getPDFVersion

public float getPDFVersion()

Specified by:

getPDFVersion in interface SelectiveComputation

allows

public boolean allows(SelectiveComputation.Change change)

Specified by:

allows in interface SelectiveComputation

selectiveness

public boolean selectiveness(SelectiveComputation.Selectiveness selectiveness)

Specified by:

selectiveness in interface SelectiveComputation

protects

public boolean protects(org.apache.pdfbox.cos.COSBase field)

Indica se o campo informado está protegido pela regra FieldMDP.

A decisão considera a ação FieldMDP declarada: All protege todos os campos; Include protege apenas os campos listados; Exclude protege todos, exceto os campos listados.

Parameters:

field - campo de formulário a ser avaliado.

Returns:

true se o campo estiver protegido pela regra FieldMDP; false caso contrário.

getDocument

public org.apache.pdfbox.pdmodel.PDDocument getDocument()

useIcpBrRules

public boolean useIcpBrRules()

Specified by:

useIcpBrRules in interface SelectiveComputation

protectVisualRepresentation

public boolean protectVisualRepresentation()

Specified by:

protectVisualRepresentation in interface SelectiveComputation

setFieldBytes

public void setFieldBytes(byte[] fieldBytes)

getFieldBytes

public byte[] getFieldBytes()

hasFieldBytes

public boolean hasFieldBytes()