Package org.iirds.dita.ot.plugin.module

Class ContentHashBuilder

java.lang.Object

org.iirds.dita.ot.plugin.module.ContentHashBuilder

public class ContentHashBuilder
extends Object

Generate a hash value of XML content

Author:

Martin Kreutzer, Empolis Information Management GmbH

Field Summary

Fields

Modifier and Type	Field	Description
protected Set<String>	excludeAttributes

Constructor Summary

Constructors

Constructor	Description
ContentHashBuilder()

Method Summary

Modifier and Type	Method	Description
String	getHash(Element element)	Generates a hash of the content of an element.
(package private) List<Attr>	getSortedAttributes(Element element)
protected void	update(MessageDigest md, String text)
protected void	update(MessageDigest md, Node root)

Methods inherited from class java.lang.Object

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

Field Details

excludeAttributes

protected Set<String> excludeAttributes

Constructor Details

ContentHashBuilder

public ContentHashBuilder()

Method Details

getHash

public String getHash(Element element)

Generates a hash of the content of an element. Some technical attribute (xtrc, xtrf, xnlns:dita-ot), XML comments, and XML processing instructions are not taken into account. Implementation uses SHA-256.

Parameters:

element - the element for which to generate a hash

Returns:

the hash (hex-encoded)

update

protected void update(MessageDigest md,
 String text)

getSortedAttributes

List<Attr> getSortedAttributes(Element element)

update

protected void update(MessageDigest md,
 Node root)