org.verapdf.metadata.fixer.entity

Interface PDFDocument

All Known Implementing Classes:

PDFDocumentImpl

public interface PDFDocument

Current interface provide necessary behavior of pdf document for MetadataFixerImpl

Author:

Evgeniy Muravitskiy

Method Summary

Modifier and Type	Method and Description
InfoDictionary	getInfoDictionary() Return pdf document information dictionary representation.
Metadata	getMetadata() Return pdf document metadata representation.
boolean	isNeedToBeUpdated()
int	removeFiltersForAllMetadataObjects() Removes filters for all metadata streams in document
MetadataFixerResult	saveDocumentIncremental(MetadataFixerResult.RepairStatus status, OutputStream output) Incremental save of pdf document.

Method Detail

getMetadata

Metadata getMetadata()

Return pdf document metadata representation. Must return null if and only if handler having problems with metadata obtain (exceptions, for example). If metadata is not present in the document ('Metadata' key in catalog not present or empty) it`s must be added.

Returns:

metadata representation or null

See Also:

Metadata

getInfoDictionary

InfoDictionary getInfoDictionary()

Return pdf document information dictionary representation. Must be not null (empty, for example).

Returns:

information dictionary representation

See Also:

InfoDictionary

isNeedToBeUpdated

boolean isNeedToBeUpdated()

Returns:

saveDocumentIncremental

MetadataFixerResult saveDocumentIncremental(MetadataFixerResult.RepairStatus status,
                                            OutputStream output)

Incremental save of pdf document. Document must be saved if and only if metadata or information dictionary of document was changed. In MetadataFixerResultImpl must set 1 of 3 states:

• MetadataFixerResult.RepairStatus.FIX_ERROR if got problems with document save
• MetadataFixerResult.RepairStatus.NO_ACTION if metadata and information dictionary was not changed
• MetadataFixerResult.RepairStatus.SUCCESS if document save successful

Parameters:

report - result of MetadataFixerImpl handling

output - output stream for document save

Returns:

removeFiltersForAllMetadataObjects

int removeFiltersForAllMetadataObjects()

Removes filters for all metadata streams in document

Returns:

number of unfiltered streams