org.fcrepo.http.commons.responses

Class ViewHelpers

java.lang.Object

org.fcrepo.http.commons.responses.ViewHelpers

public class ViewHelpers
extends Object

General view helpers for rendering HTML responses

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	ViewHelpers()

Method Summary

Methods

Modifier and Type	Method and Description
int	addOne(int i) Yes, we really did create a method to increment a given int.
com.hp.hpl.jena.graph.Node	asNode(com.hp.hpl.jena.rdf.model.Resource r) Convert an RDF resource to an RDF node
static ViewHelpers	getInstance() ViewHelpers are singletons.
String	getNamespacePrefix(com.hp.hpl.jena.shared.PrefixMapping mapping, String namespace) Get the namespace prefix (or the namespace URI itself, if no prefix is available) from a prefix mapping
Map<String,String>	getNodeBreadcrumbs(javax.ws.rs.core.UriInfo uriInfo, com.hp.hpl.jena.graph.Node subject) Generate url -> local name breadcrumbs for a given node's tree
Iterator<com.hp.hpl.jena.sparql.core.Quad>	getObjects(com.hp.hpl.jena.sparql.core.DatasetGraph dataset, com.hp.hpl.jena.graph.Node subject, com.hp.hpl.jena.rdf.model.Resource predicate) Return an iterator of Quads that match the given subject and predicate
String	getObjectsAsString(com.hp.hpl.jena.sparql.core.DatasetGraph dataset, com.hp.hpl.jena.graph.Node subject, com.hp.hpl.jena.rdf.model.Resource predicate) Get the string version of the object that matches the given subject and predicate
String	getObjectTitle(com.hp.hpl.jena.sparql.core.DatasetGraph dataset, com.hp.hpl.jena.graph.Node subject) Get the canonical title of a subject from the graph
String	getPrefixPreamble(com.hp.hpl.jena.shared.PrefixMapping mapping) Get a prefix preamble appropriate for a SPARQL-UPDATE query from a prefix mapping object
List<com.hp.hpl.jena.sparql.core.Quad>	getSortedTriples(com.hp.hpl.jena.rdf.model.Model model, Iterator<com.hp.hpl.jena.sparql.core.Quad> it) Sort a Iterator of Quads alphabetically by its subject, predicate, and object

Methods inherited from class java.lang.Object

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

Constructor Detail

ViewHelpers

protected ViewHelpers()

Method Detail

getInstance

public static ViewHelpers getInstance()

ViewHelpers are singletons. Initialize or return the existing object

Returns:

getObjects

public Iterator<com.hp.hpl.jena.sparql.core.Quad> getObjects(com.hp.hpl.jena.sparql.core.DatasetGraph dataset,
                                                    com.hp.hpl.jena.graph.Node subject,
                                                    com.hp.hpl.jena.rdf.model.Resource predicate)

Return an iterator of Quads that match the given subject and predicate

Parameters:

dataset -

subject -

predicate -

Returns:

getObjectTitle

public String getObjectTitle(com.hp.hpl.jena.sparql.core.DatasetGraph dataset,
                    com.hp.hpl.jena.graph.Node subject)

Get the canonical title of a subject from the graph

Parameters:

dataset -

subject -

Returns:

getObjectsAsString

public String getObjectsAsString(com.hp.hpl.jena.sparql.core.DatasetGraph dataset,
                        com.hp.hpl.jena.graph.Node subject,
                        com.hp.hpl.jena.rdf.model.Resource predicate)

Get the string version of the object that matches the given subject and predicate

Parameters:

dataset -

subject -

predicate -

Returns:

getNodeBreadcrumbs

public Map<String,String> getNodeBreadcrumbs(javax.ws.rs.core.UriInfo uriInfo,
                                    com.hp.hpl.jena.graph.Node subject)

Generate url -> local name breadcrumbs for a given node's tree

Parameters:

uriInfo -

subject -

Returns:

getSortedTriples

public List<com.hp.hpl.jena.sparql.core.Quad> getSortedTriples(com.hp.hpl.jena.rdf.model.Model model,
                                                      Iterator<com.hp.hpl.jena.sparql.core.Quad> it)

Sort a Iterator of Quads alphabetically by its subject, predicate, and object

Parameters:

model -

it -

Returns:

getNamespacePrefix

public String getNamespacePrefix(com.hp.hpl.jena.shared.PrefixMapping mapping,
                        String namespace)

Get the namespace prefix (or the namespace URI itself, if no prefix is available) from a prefix mapping

Parameters:

mapping -

namespace -

Returns:

getPrefixPreamble

public String getPrefixPreamble(com.hp.hpl.jena.shared.PrefixMapping mapping)

Get a prefix preamble appropriate for a SPARQL-UPDATE query from a prefix mapping object

Parameters:

mapping -

Returns:

asNode

public com.hp.hpl.jena.graph.Node asNode(com.hp.hpl.jena.rdf.model.Resource r)

Convert an RDF resource to an RDF node

Parameters:

r -

Returns:

addOne

public int addOne(int i)

Yes, we really did create a method to increment a given int. You can't do math in a velocity template.

Parameters:

i -

Returns: