Class IncrementalUpdateVisitor<T>

java.lang.Object
br.ufsc.labsec.signature.conformanceVerifier.pdf.incrementalupdate.IncrementalUpdateVisitor<T>
All Implemented Interfaces:
org.apache.pdfbox.cos.ICOSVisitor
public class IncrementalUpdateVisitor<T> extends Object implements org.apache.pdfbox.cos.ICOSVisitor

  • Field Details

    • PROTECT_SIGNATURE_APPEARANCE

      public static final boolean PROTECT_SIGNATURE_APPEARANCE
      See Also:

    • aggregator

      protected final IncrementalUpdateAggregator<T> aggregator

    • selectiveComputation

      protected final SelectiveComputation selectiveComputation

    • previousExistingFields

      protected Set<org.apache.pdfbox.cos.COSObjectKey> previousExistingFields

  • Constructor Details

  • Method Details

    • visitFromDocument

      public void visitFromDocument(org.apache.pdfbox.cos.COSDocument obj) throws IOException
      Computa o documento PDF, retornando os bytes do documento com as informações

      Appendix 1: Computation of Object Digests

      Section 1.2.1: Document

      When calculating a digest for the document, the following items are included, in order:

          * A) The values of the following entries in the document catalog (see Table 3.25), if present: AA, Legal; and Perms
    * B) The values of the following entries in the document information dictionary (see Table 10.2), if present: Title, Author, Keywords, and Subject
    * C) All page objects in the document, in page order, as described in Section I.2.2, "Page Objects"
    * D) All named pages specified in the Pages name tree, sorted by name, as described in Section I.2.3, "Named Pages"
    * E) All embedded files specified in the EmbeddedFiles name tree, sorted by name, as described in Section I.2.4, "Embedded Files"
    * Exception 1: we include the AcroForm signature fields in the computation.
      Specified by:
      visitFromDocument in interface org.apache.pdfbox.cos.ICOSVisitor
      Parameters:
      obj - o documento PDF a ser computado
      Throws:
      IOException - se ocorrer algum erro de I/O durante a computação do documento

    • visitFromDocumentFieldMDP

      public void visitFromDocumentFieldMDP(org.apache.pdfbox.cos.COSDocument document, SelectiveComputation.FieldMDP fieldMDP) throws IOException
      Throws:
      IOException

    • visitFallback

      public void visitFallback(org.apache.pdfbox.cos.COSDocument document) throws IOException
      Throws:
      IOException

    • visitFromArray

      public void visitFromArray(org.apache.pdfbox.cos.COSArray obj) throws IOException
      Specified by:
      visitFromArray in interface org.apache.pdfbox.cos.ICOSVisitor
      Throws:
      IOException

    • visitFromBoolean

      public void visitFromBoolean(org.apache.pdfbox.cos.COSBoolean obj)
      Specified by:
      visitFromBoolean in interface org.apache.pdfbox.cos.ICOSVisitor

    • visitFromDictionary

      public void visitFromDictionary(org.apache.pdfbox.cos.COSDictionary obj) throws IOException
      Specified by:
      visitFromDictionary in interface org.apache.pdfbox.cos.ICOSVisitor
      Throws:
      IOException

    • visitFromFloat

      public void visitFromFloat(org.apache.pdfbox.cos.COSFloat obj)
      Specified by:
      visitFromFloat in interface org.apache.pdfbox.cos.ICOSVisitor

    • visitFromInt

      public void visitFromInt(org.apache.pdfbox.cos.COSInteger obj)
      Specified by:
      visitFromInt in interface org.apache.pdfbox.cos.ICOSVisitor

    • visitFromName

      public void visitFromName(org.apache.pdfbox.cos.COSName obj)
      Specified by:
      visitFromName in interface org.apache.pdfbox.cos.ICOSVisitor

    • visitFromNull

      public void visitFromNull(org.apache.pdfbox.cos.COSNull obj)
      Specified by:
      visitFromNull in interface org.apache.pdfbox.cos.ICOSVisitor

    • visitFromStream

      public void visitFromStream(org.apache.pdfbox.cos.COSStream obj) throws IOException
      Specified by:
      visitFromStream in interface org.apache.pdfbox.cos.ICOSVisitor
      Throws:
      IOException

    • visitFromString

      public void visitFromString(org.apache.pdfbox.cos.COSString obj)
      Specified by:
      visitFromString in interface org.apache.pdfbox.cos.ICOSVisitor

    • visitFromObject

      public void visitFromObject(org.apache.pdfbox.cos.COSObject obj) throws IOException
      Specified by:
      visitFromObject in interface org.apache.pdfbox.cos.ICOSVisitor
      Throws:
      IOException

    • writeName

      protected void writeName(org.apache.pdfbox.cos.COSName name)

    • appendIdentifier

      public void appendIdentifier(org.apache.pdfbox.cos.COSBase base)

    • write4bytesInteger

      protected void write4bytesInteger(int integer)

    • ifPresent

      public void ifPresent(org.apache.pdfbox.cos.COSBase value) throws IOException
      Throws:
      IOException

    • ifPresentNEntries

      public void ifPresentNEntries(org.apache.pdfbox.cos.COSDictionary dictionary, org.apache.pdfbox.cos.COSName... keys) throws IOException
      Throws:
      IOException

    • ifPresentNEntries

      public void ifPresentNEntries(org.apache.pdfbox.cos.COSDictionary dictionary, boolean inheritable, org.apache.pdfbox.cos.COSName... keys) throws IOException
      Throws:
      IOException

    • ifPresent

      public void ifPresent(org.apache.pdfbox.cos.COSDictionary dictionary, org.apache.pdfbox.cos.COSName key) throws IOException
      Throws:
      IOException

    • ifPresent

      public void ifPresent(org.apache.pdfbox.cos.COSDictionary dictionary, org.apache.pdfbox.cos.COSName key, boolean inheritable) throws IOException
      Throws:
      IOException

    • ifPresentKeyValuePair

      protected void ifPresentKeyValuePair(org.apache.pdfbox.cos.COSDictionary dictionary, org.apache.pdfbox.cos.COSName key) throws IOException
      Throws:
      IOException

    • writeKeyValuePair

      protected void writeKeyValuePair(org.apache.pdfbox.cos.COSName key, org.apache.pdfbox.cos.COSBase value) throws IOException
      Throws:
      IOException

    • ifPresentKeyValueNEntries

      protected void ifPresentKeyValueNEntries(org.apache.pdfbox.cos.COSDictionary dictionary, org.apache.pdfbox.cos.COSName... keys) throws IOException
      Throws:
      IOException

    • alreadyVisited

      protected boolean alreadyVisited(org.apache.pdfbox.cos.COSObject object)

    • markAsVisited

      protected void markAsVisited(org.apache.pdfbox.cos.COSObject object)

    • setPreviousExistingFields

      public void setPreviousExistingFields(Set<org.apache.pdfbox.cos.COSObjectKey> previousExistingFields)

    • existsInPreviousVersions

      public boolean existsInPreviousVersions(org.apache.pdfbox.cos.COSBase obj)

    • existsInPreviousVersions

      public boolean existsInPreviousVersions(org.apache.pdfbox.cos.COSObjectKey key)

    • getAggregator

      public IncrementalUpdateAggregator<T> getAggregator()

    • getSelectiveComputation

      public SelectiveComputation getSelectiveComputation()

    • getDocument

      public org.apache.pdfbox.cos.COSDocument getDocument()