Package eu.europa.esig.dss.tsl.sha2

Class AbstractTrustedListWithSha2Predicate

java.lang.Object

eu.europa.esig.dss.tsl.sha2.AbstractTrustedListWithSha2Predicate

All Implemented Interfaces:

Predicate<DocumentWithSha2>

Direct Known Subclasses:

DefaultTrustedListWithSha2Predicate

public abstract class AbstractTrustedListWithSha2Predicate
extends Object
implements Predicate<DocumentWithSha2>

This is an abstract implementation of a Predicate for a Trusted List document with sha2 processing, containing common utility methods for a Trusted List validation

Field Summary

Fields

Modifier and Type	Field	Description
protected static final String	NEXT_UPDATE_PATH	The path to reach a tl:NextUpdate element
protected static final DigestAlgorithm	SHA2_ALGORITHM	The default sha2 digest algorithm defined in ETSI TS 119 612

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	AbstractTrustedListWithSha2Predicate()	Default constructor

Method Summary

Modifier and Type	Method	Description
protected Date	getNextUpdate(DSSDocument tlDocument)	This method retrieves a NextUpdate date value from the provided Trusted List document
protected Digest	getOriginalDocumentDigest(DSSDocument document)	This method computes Digest on the given DSSDocument's content
protected Digest	getSha2Digest(DSSDocument sha2Document)	This method parses the sha2Document and returns the Digest
abstract boolean	test(DocumentWithSha2 documentWithSha2)	This method evaluates whether the sha2 digest match the original document

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.util.function.Predicate

and, negate, or

Field Details

SHA2_ALGORITHM

protected static final DigestAlgorithm SHA2_ALGORITHM

The default sha2 digest algorithm defined in ETSI TS 119 612

NEXT_UPDATE_PATH

protected static final String NEXT_UPDATE_PATH

The path to reach a tl:NextUpdate element

See Also:

• Constant Field Values

Constructor Details

AbstractTrustedListWithSha2Predicate

protected AbstractTrustedListWithSha2Predicate()

Default constructor

Method Details

test

public abstract boolean test(DocumentWithSha2 documentWithSha2)

This method evaluates whether the sha2 digest match the original document

Specified by:

test in interface Predicate<DocumentWithSha2>

Parameters:

documentWithSha2 - DocumentWithSha2 containing the original document and downloaded sha2 document

Returns:

TRUE if the sha2 corresponding to the document match the digest of the cached content and no refresh is required, FALSE otherwise (if refresh is required for any reason)

getOriginalDocumentDigest

protected Digest getOriginalDocumentDigest(DSSDocument document)

This method computes Digest on the given DSSDocument's content

Parameters:

document - DSSDocument to compute digest on

Returns:

Digest

getSha2Digest

protected Digest getSha2Digest(DSSDocument sha2Document)

This method parses the sha2Document and returns the Digest

Parameters:

sha2Document - DSSDocument representing a sha2 document

Returns:

Digest

getNextUpdate

protected Date getNextUpdate(DSSDocument tlDocument)

This method retrieves a NextUpdate date value from the provided Trusted List document

Parameters:

tlDocument - DSSDocument representing a cached Trusted List

Returns:

Date NextUpdate (when defined)