/**
* Adds specific value
*
* @param RdfWriter $writer
* @param string $propertyValueNamespace Property value relation namespace
* @param string $propertyValueLName Property value relation name
* @param string $dataType Property data type
* @param PropertyValueSnak $snak
*/
public function addValue(RdfWriter $writer, $propertyValueNamespace, $propertyValueLName, $dataType, PropertyValueSnak $snak)
{
$value = $snak->getDataValue();
$entityId = $value->getValue()->getEntityId();
$entityLName = $this->vocabulary->getEntityLName($entityId);
$writer->say($propertyValueNamespace, $propertyValueLName)->is(RdfVocabulary::NS_ENTITY, $entityLName);
$this->mentionedEntityTracker->entityReferenceMentioned($entityId);
}
/**
* Adds the given Statement's main Snak to the RDF graph.
*
* @param RdfWriter $writer
* @param Snak $snak
* @param string $propertyNamespace
*
* @throws InvalidArgumentException
*/
public function addSnak(RdfWriter $writer, Snak $snak, $propertyNamespace)
{
$propertyId = $snak->getPropertyId();
switch ($snak->getType()) {
case 'value':
/** @var PropertyValueSnak $snak */
$this->addSnakValue($writer, $snak, $propertyNamespace);
break;
case 'somevalue':
$propertyValueLName = $this->vocabulary->getEntityLName($propertyId);
$writer->say($propertyNamespace, $propertyValueLName)->is('_', $writer->blank());
break;
case 'novalue':
$propertyValueLName = $this->vocabulary->getEntityLName($propertyId);
$writer->say('a')->is(RdfVocabulary::NSP_NOVALUE, $propertyValueLName);
break;
default:
throw new InvalidArgumentException('Unknown snak type: ' . $snak->getType());
}
$this->mentionedEntityTracker->propertyMentioned($snak->getPropertyId());
}