org.fcrepo.kernel.identifiers

Class ExternalIdentifierConverter

java.lang.Object

com.google.common.base.Converter<String,T>

org.fcrepo.kernel.identifiers.IdentifierConverter<com.hp.hpl.jena.rdf.model.Resource>

org.fcrepo.kernel.identifiers.ExternalIdentifierConverter

All Implemented Interfaces:

com.google.common.base.Function<String,com.hp.hpl.jena.rdf.model.Resource>

public class ExternalIdentifierConverter
extends IdentifierConverter<com.hp.hpl.jena.rdf.model.Resource>

Translates internal String identifiers to external Resource identifiers, by passing the input through the translation chain in one direction or the other, then converting the results into a Resource. Subclasses should override doRdfForward() and doRdfReverse().

Since:

Apr 1, 2014

Author:

ajs6f

Field Summary

Fields

Modifier and Type	Field and Description
protected com.google.common.base.Converter<String,String>	forward
protected com.google.common.base.Converter<String,String>	reverse
protected List<InternalIdentifierConverter>	translationChain

Constructor Summary

Constructors

Constructor and Description
ExternalIdentifierConverter()

Method Summary

Methods

Modifier and Type	Method and Description
void	accumulateTranslations() We fold the list of translators once in each direction and store the resulting calculation.
protected String	doBackward(com.hp.hpl.jena.rdf.model.Resource a)
protected com.hp.hpl.jena.rdf.model.Resource	doForward(String a)
protected String	doRdfBackward(com.hp.hpl.jena.rdf.model.Resource a)
protected com.hp.hpl.jena.rdf.model.Resource	doRdfForward(String a)
void	setTranslationChain(List<InternalIdentifierConverter> chain)

Methods inherited from class com.google.common.base.Converter

andThen, apply, convert, convertAll, equals, from, identity, reverse

Methods inherited from class java.lang.Object

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

Field Detail

translationChain

@Inject
protected List<InternalIdentifierConverter> translationChain

forward

protected com.google.common.base.Converter<String,String> forward

reverse

protected com.google.common.base.Converter<String,String> reverse

Constructor Detail

ExternalIdentifierConverter

public ExternalIdentifierConverter()

Method Detail

doForward

protected com.hp.hpl.jena.rdf.model.Resource doForward(String a)

Specified by:

doForward in class com.google.common.base.Converter<String,com.hp.hpl.jena.rdf.model.Resource>

doBackward

protected String doBackward(com.hp.hpl.jena.rdf.model.Resource a)

Specified by:

doBackward in class com.google.common.base.Converter<String,com.hp.hpl.jena.rdf.model.Resource>

doRdfForward

protected com.hp.hpl.jena.rdf.model.Resource doRdfForward(String a)

doRdfBackward

protected String doRdfBackward(com.hp.hpl.jena.rdf.model.Resource a)

accumulateTranslations

@PostConstruct
public void accumulateTranslations()

We fold the list of translators once in each direction and store the resulting calculation.

setTranslationChain

public void setTranslationChain(List<InternalIdentifierConverter> chain)

Parameters:

chain - the translation chain to use