Package org.dspace.orcid.service.impl

Class PlainMetadataSignatureGeneratorImpl

java.lang.Object

org.dspace.orcid.service.impl.PlainMetadataSignatureGeneratorImpl

All Implemented Interfaces:

MetadataSignatureGenerator

public class PlainMetadataSignatureGeneratorImpl
extends Object
implements MetadataSignatureGenerator

Implementation of MetadataSignatureGenerator that composes a signature made up of a section for each metadata value, divided by the character SIGNATURE_SECTIONS_SEPARATOR.
Each section is composed of the metadata field, the metadata value and, if present, the authority, divided by the character METADATA_SECTIONS_SEPARATOR.
The presence of the metadata field allows to have different signatures for metadata with the same values but referring to different fields, while the authority allows to distinguish metadata that refer to different entities, even if they have the same value. Finally, the various sections of the signature are sorted by metadata field so that the order of the input metadata values does not affect the signature.

Author:

Luca Giamminonni (luca.giamminonni at 4science.it)

Constructor Summary

Constructors

Constructor	Description
PlainMetadataSignatureGeneratorImpl()

Method Summary

Modifier and Type	Method	Description
List<MetadataValue>	findBySignature(Context context, Item item, String signature)	Returns the metadata values traceable by the given item related with the given signature.
String	generate(Context context, List<MetadataValue> metadataValues)	Generate a signature related to the given metadata values.

Methods inherited from class java.lang.Object

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

Constructor Details

PlainMetadataSignatureGeneratorImpl

public PlainMetadataSignatureGeneratorImpl()

Method Details

generate

public String generate(Context context,
 List<MetadataValue> metadataValues)

Description copied from interface: MetadataSignatureGenerator

Generate a signature related to the given metadata values.

Specified by:

generate in interface MetadataSignatureGenerator

Parameters:

context - the DSpace context

metadataValues - the metadata values to sign

Returns:

the generated signature

findBySignature

public List<MetadataValue> findBySignature(Context context,
 Item item,
 String signature)

Description copied from interface: MetadataSignatureGenerator

Returns the metadata values traceable by the given item related with the given signature.

Specified by:

findBySignature in interface MetadataSignatureGenerator

Parameters:

context - the DSpace context

item - the item

signature - the metadata signature

Returns:

the founded metadata