Java Code Examples for org.openrdf.model.Graph#getValueFactory()
The following examples show how to use
org.openrdf.model.Graph#getValueFactory() .
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Example 1
| Source File: EntityTypeSerializer.java From attic-polygene-java with Apache License 2.0 | 6 votes |
|
public Iterable<Statement> serialize( final EntityDescriptor entityDescriptor )
{
Graph graph = new GraphImpl();
ValueFactory values = graph.getValueFactory();
URI entityTypeUri = values.createURI( Classes.toURI( entityDescriptor.types().findFirst().orElse( null ) ) );
graph.add( entityTypeUri, Rdfs.TYPE, Rdfs.CLASS );
graph.add( entityTypeUri, Rdfs.TYPE, OWL.CLASS );
graph.add( entityTypeUri,
PolygeneEntityType.TYPE,
values.createLiteral( entityDescriptor.types().findFirst().get().toString() )
);
graph.add( entityTypeUri, PolygeneEntityType.QUERYABLE, values.createLiteral( entityDescriptor.queryable() ) );
serializeMixinTypes( entityDescriptor, graph, entityTypeUri );
serializePropertyTypes( entityDescriptor, graph, entityTypeUri );
serializeAssociationTypes( entityDescriptor, graph, entityTypeUri );
serializeManyAssociationTypes( entityDescriptor, graph, entityTypeUri );
return graph;
}
Example 2
| Source File: EntityTypeSerializer.java From attic-polygene-java with Apache License 2.0 | 6 votes |
|
private void serializeManyAssociationTypes( final EntityDescriptor entityDescriptor,
final Graph graph,
final URI entityTypeUri
)
{
ValueFactory values = graph.getValueFactory();
// ManyAssociations
entityDescriptor.state().manyAssociations().forEach( manyAssociationType -> {
URI associationURI = values.createURI( manyAssociationType.qualifiedName().toURI() );
graph.add( associationURI, Rdfs.DOMAIN, entityTypeUri );
graph.add( associationURI, Rdfs.TYPE, Rdfs.SEQ );
URI associatedURI = values.createURI( manyAssociationType.qualifiedName().toURI() );
graph.add( associationURI, Rdfs.RANGE, associatedURI );
graph.add( associationURI, Rdfs.RANGE, XMLSchema.ANYURI );
} );
}
Example 3
| Source File: EntityTypeSerializer.java From attic-polygene-java with Apache License 2.0 | 6 votes |
|
private void serializeAssociationTypes( final EntityDescriptor entityDescriptor,
final Graph graph,
final URI entityTypeUri
)
{
ValueFactory values = graph.getValueFactory();
// Associations
entityDescriptor.state().associations().forEach( associationType -> {
URI associationURI = values.createURI( associationType.qualifiedName().toURI() );
graph.add( associationURI, Rdfs.DOMAIN, entityTypeUri );
graph.add( associationURI, Rdfs.TYPE, Rdfs.PROPERTY );
URI associatedURI = values.createURI( Classes.toURI( Classes.RAW_CLASS.apply( associationType.type() ) ) );
graph.add( associationURI, Rdfs.RANGE, associatedURI );
graph.add( associationURI, Rdfs.RANGE, XMLSchema.ANYURI );
} );
}
Example 4
| Source File: EntityTypeSerializer.java From attic-polygene-java with Apache License 2.0 | 6 votes |
|
private void serializePropertyTypes( final EntityDescriptor entityDescriptor,
final Graph graph,
final URI entityTypeUri
)
{
ValueFactory values = graph.getValueFactory();
// Properties
entityDescriptor.state().properties().forEach( persistentProperty -> {
URI propertyURI = values.createURI( persistentProperty.qualifiedName().toURI() );
graph.add( propertyURI, Rdfs.DOMAIN, entityTypeUri );
graph.add( propertyURI, Rdfs.TYPE, Rdfs.PROPERTY );
// TODO Support more types
URI type = dataTypes.get( persistentProperty.valueType().primaryType().getName() );
if( type != null )
{
graph.add( propertyURI, Rdfs.RANGE, type );
}
} );
}
Example 5
| Source File: EntityStateSerializer.java From attic-polygene-java with Apache License 2.0 | 5 votes |
|
public void serialize( final EntityState entityState,
final boolean includeNonQueryable,
final Graph graph
)
{
ValueFactory values = graph.getValueFactory();
EntityReference reference = entityState.entityReference();
URI entityUri = createEntityURI( values, reference );
graph.add( entityUri,
Rdfs.TYPE,
values.createURI(
Classes.toURI( entityState.entityDescriptor().types().findFirst().orElse( null ) ) ) );
serializeProperties( entityState,
graph,
entityUri,
entityState.entityDescriptor(),
includeNonQueryable );
serializeAssociations( entityState,
graph,
entityUri,
entityState.entityDescriptor().state().associations(),
includeNonQueryable );
serializeManyAssociations( entityState,
graph,
entityUri,
entityState.entityDescriptor().state().manyAssociations(),
includeNonQueryable );
}
Example 6
| Source File: EntityStateSerializer.java From attic-polygene-java with Apache License 2.0 | 5 votes |
|
private void serializeProperty( PropertyDescriptor persistentProperty, Object property,
Resource subject, Graph graph,
boolean includeNonQueryable )
{
if( !( includeNonQueryable || persistentProperty.queryable() ) )
{
return; // Skip non-queryable
}
ValueType valueType = persistentProperty.valueType();
final ValueFactory valueFactory = graph.getValueFactory();
String propertyURI = persistentProperty.qualifiedName().toURI();
URI predicate = valueFactory.createURI( propertyURI );
String baseURI = propertyURI.substring( 0, propertyURI.indexOf( '#' ) ) + "/";
if( valueType instanceof ValueCompositeType )
{
serializeValueComposite( subject, predicate, (ValueComposite) property, valueType,
graph, baseURI, includeNonQueryable );
}
else
{
String stringProperty = serializer.serialize( Serializer.Options.NO_TYPE_INFO, property );
final Literal object = valueFactory.createLiteral( stringProperty );
graph.add( subject, predicate, object );
}
}
Example 7
| Source File: EntityStateSerializer.java From attic-polygene-java with Apache License 2.0 | 5 votes |
|
private void serializeAssociations( final EntityState entityState,
final Graph graph, URI entityUri,
final Stream<? extends AssociationDescriptor> associations,
final boolean includeNonQueryable
)
{
ValueFactory values = graph.getValueFactory();
// Associations
associations.filter( type -> includeNonQueryable || type.queryable() ).forEach(
associationType ->
{
EntityReference associatedId
= entityState
.associationValueOf(
associationType
.qualifiedName() );
if( associatedId != null )
{
URI assocURI = values
.createURI(
associationType
.qualifiedName()
.toURI() );
URI assocEntityURI
= values.createURI(
associatedId
.toURI() );
graph.add( entityUri,
assocURI,
assocEntityURI );
}
} );
}
Example 8
| Source File: EntityTypeSerializer.java From attic-polygene-java with Apache License 2.0 | 5 votes |
|
private void serializeMixinTypes( final EntityDescriptor entityDescriptor,
final Graph graph,
final URI entityTypeUri
)
{
ValueFactory values = graph.getValueFactory();
entityDescriptor.mixinTypes().forEach( mixinType -> {
graph.add( entityTypeUri, Rdfs.SUB_CLASS_OF, values.createURI( Classes.toURI( mixinType ) ) );
} );
}
Example 9
| Source File: Test_REST_ServiceDescription.java From database with GNU General Public License v2.0 | 5 votes |
|
/**
* Request the SPARQL SERVICE DESCRIPTION for the end point.
*/
public void test_SERVICE_DESCRIPTION() throws Exception {
final Graph g = RemoteRepository
.asGraph(m_repo.getServiceDescription());
final ValueFactory f = g.getValueFactory();
// Verify the end point is disclosed.
assertEquals(
1,
countMatches(g, null/* service */, SD.endpoint,
f.createURI(m_repo.getSparqlEndPoint())));
// f.createURI(m_serviceURL + "/sparql")));
// Verify description includes supported query and update languages.
assertEquals(
1,
countMatches(g, null/* service */, SD.supportedLanguage,
SD.SPARQL10Query));
assertEquals(
1,
countMatches(g, null/* service */, SD.supportedLanguage,
SD.SPARQL11Query));
assertEquals(
1,
countMatches(g, null/* service */, SD.supportedLanguage,
SD.SPARQL11Update));
// Verify support for Basic Federated Query is disclosed.
assertEquals(
1,
countMatches(g, null/* service */, SD.feature,
SD.BasicFederatedQuery));
}
Example 10
| Source File: EntityStateSerializer.java From attic-polygene-java with Apache License 2.0 | 4 votes |
|
private void serializeValueComposite( Resource subject, URI predicate,
ValueComposite value,
ValueType valueType,
Graph graph,
String baseUri,
boolean includeNonQueryable
)
{
final ValueFactory valueFactory = graph.getValueFactory();
BNode collection = valueFactory.createBNode();
graph.add( subject, predicate, collection );
( (ValueCompositeType) valueType ).properties().forEach(
persistentProperty ->
{
Object propertyValue
= PolygeneAPI.FUNCTION_COMPOSITE_INSTANCE_OF
.apply( value )
.state()
.propertyFor( persistentProperty.accessor() )
.get();
if( propertyValue != null )
{
ValueType type = persistentProperty
.valueType();
if( type instanceof ValueCompositeType )
{
URI pred = valueFactory.createURI( baseUri,
persistentProperty
.qualifiedName()
.name() );
serializeValueComposite( collection, pred,
(ValueComposite) propertyValue,
type, graph,
baseUri
+ persistentProperty
.qualifiedName()
.name() + "/",
includeNonQueryable );
}
else
{
serializeProperty( persistentProperty,
propertyValue,
collection, graph,
includeNonQueryable );
}
}
} );
}
Example 11
| Source File: EntityStateSerializer.java From attic-polygene-java with Apache License 2.0 | 4 votes |
|
private void serializeManyAssociations( final EntityState entityState,
final Graph graph,
final URI entityUri,
final Stream<? extends AssociationDescriptor> associations,
final boolean includeNonQueryable
)
{
ValueFactory values = graph.getValueFactory();
// Many-Associations
associations.filter( type -> includeNonQueryable || type.queryable() ).forEach(
associationType ->
{
BNode collection = values
.createBNode();
graph.add( entityUri, values
.createURI(
associationType
.qualifiedName()
.toURI() ),
collection );
graph.add( collection,
Rdfs.TYPE,
Rdfs.SEQ );
ManyAssociationState
associatedIds
= entityState
.manyAssociationValueOf(
associationType
.qualifiedName() );
for( EntityReference associatedId : associatedIds )
{
URI assocEntityURI
= values.createURI(
associatedId
.toURI() );
graph.add( collection,
Rdfs.LIST_ITEM,
assocEntityURI );
}
} );
}
Example 12
| Source File: SD.java From database with GNU General Public License v2.0 | 3 votes |
|
/**
*
* @param g
* Where to assemble the description.
* @param tripleStore
* The KB instance to be described.
* @param serviceURIs
* One or more service end points for that KB instance.
*
* @see #describeService()
*/
public SD(final Graph g, final AbstractTripleStore tripleStore,
final String... serviceURI) {
if (g == null)
throw new IllegalArgumentException();
if (tripleStore == null)
throw new IllegalArgumentException();
if (serviceURI == null)
throw new IllegalArgumentException();
if (serviceURI.length == 0)
throw new IllegalArgumentException();
for (String s : serviceURI)
if (s == null)
throw new IllegalArgumentException();
this.g = g;
this.tripleStore = tripleStore;
this.serviceURI = serviceURI;
this.f = g.getValueFactory();
aService = f.createBNode("service");
aDefaultDataset = f.createBNode("defaultDataset");
}
Example 13
| Source File: VoID.java From database with GNU General Public License v2.0 | 3 votes |
|
/**
*
* @param g
* Where to assemble the description.
* @param tripleStore
* The KB instance to be described.
* @param serviceURI
* The SPARQL service end point.
* @param aDefaultDataset
* The data set identifier that will be used on the description
* (the bigdata namespace of the dataset is obtained from the
* <i>tripleStore</i>).
*/
public VoID(final Graph g, final AbstractTripleStore tripleStore,
final String[] serviceURI, final Resource aDataset) {
if (g == null)
throw new IllegalArgumentException();
if (tripleStore == null)
throw new IllegalArgumentException();
if (serviceURI == null)
throw new IllegalArgumentException();
if (serviceURI.length == 0)
throw new IllegalArgumentException();
for (String s : serviceURI)
if (s == null)
throw new IllegalArgumentException();
if (aDataset == null)
throw new IllegalArgumentException();
this.g = g;
this.tripleStore = tripleStore;
this.serviceURI = serviceURI;
this.f = g.getValueFactory();
this.aDataset = aDataset;
this.aDefaultGraph = f.createBNode("defaultGraph");
}
