org.icij.extract.document

Class DigestIdentifier

java.lang.Object

org.icij.extract.document.AbstractIdentifier

org.icij.extract.document.DigestIdentifier

All Implemented Interfaces:

Identifier

public class DigestIdentifier
extends AbstractIdentifier

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	DigestIdentifier(String algorithm, Charset charset)

Method Summary

Modifier and Type	Method and Description
String	generate(TikaDocument tikaDocument) Generate an identifier for a root tikaDocument.
String	generateForEmbed(EmbeddedTikaDocument embed) Generate an identifier for an embedded document.

Methods inherited from class org.icij.extract.document.AbstractIdentifier

hash, retrieveHash

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.icij.extract.document.Identifier

shorten

Constructor Detail

DigestIdentifier

protected DigestIdentifier(String algorithm,
                           Charset charset)

Method Detail

generate

public String generate(TikaDocument tikaDocument)

Description copied from interface: Identifier

Generate an identifier for a root tikaDocument.

Parameters:

tikaDocument - the tikaDocument to generate an identifier for

Returns:

A unique identifier, for example a fixed-length hash.

generateForEmbed

public String generateForEmbed(EmbeddedTikaDocument embed)
                        throws NoSuchAlgorithmException

Description copied from interface: Identifier

Generate an identifier for an embedded document.

Parameters:

embed - the embedded document to generate an ID for

Returns:

A unique identifier for the embedded document.

Throws:

NoSuchAlgorithmException