Package org.trellisldp.spi

Class RDFUtils

java.lang.Object

org.trellisldp.spi.RDFUtils

public final class RDFUtils
extends java.lang.Object

The RDFUtils class provides a set of convenience methods related to generating and processing RDF objects.

Field Summary

Fields

Modifier and Type	Field	Description
static java.util.Map<org.apache.commons.rdf.api.IRI,org.apache.commons.rdf.api.IRI>	superClassOf	A mapping of LDP types to their supertype
static java.lang.String	TRELLIS_BNODE_PREFIX	The internal blank node prefix
static java.lang.String	TRELLIS_PREFIX	The internal trellis prefix

Method Summary

Modifier and Type	Method	Description
static java.util.List<org.apache.commons.rdf.api.Quad>	auditCreation(org.apache.commons.rdf.api.IRI subject, Session session)	Create audit-related creation data
static java.util.List<org.apache.commons.rdf.api.Quad>	auditDeletion(org.apache.commons.rdf.api.IRI subject, Session session)	Create audit-related deletion data
static java.util.List<org.apache.commons.rdf.api.Quad>	auditUpdate(org.apache.commons.rdf.api.IRI subject, Session session)	Create audit-related update data
static java.lang.String	cleanIdentifier(java.lang.String identifier)	Clean the identifier
static org.apache.commons.rdf.api.IRI	cleanIdentifier(org.apache.commons.rdf.api.IRI identifier)	Clean the identifier
static org.apache.commons.rdf.api.RDF	getInstance()	Get the Commons RDF instance in use
static java.util.stream.Stream<org.apache.commons.rdf.api.IRI>	ldpResourceTypes(org.apache.commons.rdf.api.IRI interactionModel)	Get all of the LDP resource (super) types for the given LDP interaction model
static <T extends org.apache.commons.rdf.api.RDFTerm> T	toExternalTerm(T term, java.lang.String baseUrl)	Convert an internal term to an external term
static <T extends org.apache.commons.rdf.api.RDFTerm> T	toInternalTerm(T term, java.lang.String baseUrl)	Convert an external term to an internal term

Methods inherited from class java.lang.Object

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

Field Detail

TRELLIS_PREFIX

public static final java.lang.String TRELLIS_PREFIX

The internal trellis prefix

See Also:

Constant Field Values

TRELLIS_BNODE_PREFIX

public static final java.lang.String TRELLIS_BNODE_PREFIX

The internal blank node prefix

See Also:

Constant Field Values

superClassOf

public static final java.util.Map<org.apache.commons.rdf.api.IRI,org.apache.commons.rdf.api.IRI> superClassOf

A mapping of LDP types to their supertype

Method Detail

getInstance

public static org.apache.commons.rdf.api.RDF getInstance()

Get the Commons RDF instance in use

Returns:

the RDF instance

auditCreation

public static java.util.List<org.apache.commons.rdf.api.Quad> auditCreation(org.apache.commons.rdf.api.IRI subject,
                                                                            Session session)

Create audit-related creation data

Parameters:

subject - the subject

session - the session

Returns:

the quads

auditDeletion

public static java.util.List<org.apache.commons.rdf.api.Quad> auditDeletion(org.apache.commons.rdf.api.IRI subject,
                                                                            Session session)

Create audit-related deletion data

Parameters:

subject - the subject

session - the session

Returns:

the quads

auditUpdate

public static java.util.List<org.apache.commons.rdf.api.Quad> auditUpdate(org.apache.commons.rdf.api.IRI subject,
                                                                          Session session)

Create audit-related update data

Parameters:

subject - the subject

session - the session

Returns:

the quads

ldpResourceTypes

public static java.util.stream.Stream<org.apache.commons.rdf.api.IRI> ldpResourceTypes(org.apache.commons.rdf.api.IRI interactionModel)

Get all of the LDP resource (super) types for the given LDP interaction model

Parameters:

interactionModel - the interaction model

Returns:

a stream of types

toExternalTerm

public static <T extends org.apache.commons.rdf.api.RDFTerm> T toExternalTerm(T term,
                                                                              java.lang.String baseUrl)

Convert an internal term to an external term

Type Parameters:

T - the RDF term type

Parameters:

term - the RDF term

baseUrl - the base URL

Returns:

a converted RDF term

toInternalTerm

public static <T extends org.apache.commons.rdf.api.RDFTerm> T toInternalTerm(T term,
                                                                              java.lang.String baseUrl)

Convert an external term to an internal term

Type Parameters:

T - the RDF term type

Parameters:

term - the RDF term

baseUrl - the base URL

Returns:

a converted RDF term

cleanIdentifier

public static java.lang.String cleanIdentifier(java.lang.String identifier)

Clean the identifier

Parameters:

identifier - the identifier

Returns:

the cleaned identifier

cleanIdentifier

public static org.apache.commons.rdf.api.IRI cleanIdentifier(org.apache.commons.rdf.api.IRI identifier)

Clean the identifier

Parameters:

identifier - the identifier

Returns:

the cleaned identifier