org.trellisldp.api

Class TrellisUtils

java.lang.Object

org.trellisldp.api.TrellisUtils

public final class TrellisUtils
extends java.lang.Object

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

Field Summary

Fields

Modifier and Type	Field and Description
static java.lang.String	TRELLIS_ADMIN_ROLE The name of the trellis admin role.
static java.lang.String	TRELLIS_BNODE_PREFIX The default internal blank node prefix.
static java.lang.String	TRELLIS_DATA_PREFIX The default internal IRI for the root container.
static java.lang.String	TRELLIS_SCHEME The internal trellis scheme.
static java.lang.String	TRELLIS_SESSION_PREFIX The default internal session prefix.

Method Summary

Modifier and Type	Method and Description
static org.apache.commons.rdf.api.IRI	buildTrellisIdentifier(java.lang.String path) Build a Trellis identifier from a path string.
static java.util.Optional<org.apache.commons.rdf.api.IRI>	getContainer(org.apache.commons.rdf.api.IRI identifier) Get the structural-logical container for this resource.
static org.apache.commons.rdf.api.RDF	getInstance() Get the Commons RDF instance in use.
static org.apache.commons.rdf.api.IRI	normalizeIdentifier(org.apache.commons.rdf.api.IRI identifier) For any identifier, normalize its form to remove any hashURIs or trailing slashes.
static org.trellisldp.api.TrellisUtils.DatasetCollector	toDataset() Collect a stream of Quads into a Dataset.
static java.util.stream.Collector<org.apache.commons.rdf.api.Triple,?,org.apache.commons.rdf.api.Graph>	toGraph() Collect a stream of Triples into a Graph.

Methods inherited from class java.lang.Object

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

Field Detail

TRELLIS_SCHEME

public static final java.lang.String TRELLIS_SCHEME

The internal trellis scheme.

See Also:

Constant Field Values

TRELLIS_DATA_PREFIX

public static final java.lang.String TRELLIS_DATA_PREFIX

The default internal IRI for the root container.

See Also:

Constant Field Values

TRELLIS_BNODE_PREFIX

public static final java.lang.String TRELLIS_BNODE_PREFIX

The default internal blank node prefix.

See Also:

Constant Field Values

TRELLIS_SESSION_PREFIX

public static final java.lang.String TRELLIS_SESSION_PREFIX

The default internal session prefix.

See Also:

Constant Field Values

TRELLIS_ADMIN_ROLE

public static final java.lang.String TRELLIS_ADMIN_ROLE

The name of the trellis admin role.

See Also:

Constant Field Values

Method Detail

getInstance

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

Get the Commons RDF instance in use.

Returns:

the RDF instance

getContainer

public static java.util.Optional<org.apache.commons.rdf.api.IRI> getContainer(org.apache.commons.rdf.api.IRI identifier)

Get the structural-logical container for this resource.

Parameters:

identifier - the resource identifier

Returns:

a container, if one exists. Only the root resource would return empty here.

normalizeIdentifier

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

For any identifier, normalize its form to remove any hashURIs or trailing slashes.

Parameters:

identifier - the identifier

Returns:

a normalized identifier

buildTrellisIdentifier

public static org.apache.commons.rdf.api.IRI buildTrellisIdentifier(java.lang.String path)

Build a Trellis identifier from a path string.

Parameters:

path - the resource path

Returns:

the trellis identifier

toGraph

public static java.util.stream.Collector<org.apache.commons.rdf.api.Triple,?,org.apache.commons.rdf.api.Graph> toGraph()

Collect a stream of Triples into a Graph.

Returns:

a graph

toDataset

public static org.trellisldp.api.TrellisUtils.DatasetCollector toDataset()

Collect a stream of Quads into a Dataset.

Returns:

a Collector that accumulates a Stream of Quads into a Dataset