/**
* fetches all titles according the given array if Uris
*
* @param array resourceUris
*/
private function _fetchTitlesFromResourcePool($resourceUris)
{
$resourcePool = $this->_erfurtApp->getResourcePool();
$resources = array();
if (!empty($this->_model)) {
$modelUri = $this->_model->getModelIri();
$resources = $resourcePool->getResources($resourceUris, $modelUri);
} else {
$resources = $resourcePool->getResources($resourceUris);
}
$memoryModel = new Erfurt_Rdf_MemoryModel();
foreach ($resources as $resourceUri => $resource) {
$resourceDescription = $resource->getDescription();
$memoryModel->addStatements($resourceDescription);
$found = false;
foreach ($this->_titleProperties as $titleProperty) {
$values = $memoryModel->getValues($resourceUri, $titleProperty);
foreach ($values as $value) {
if (!empty($value['lang'])) {
$language = $value['lang'];
} else {
$language = '';
}
$this->_resources[$resourceUri][$titleProperty][$language] = $value['value'];
}
}
}
}
/**
* Method that counts already existing distinct datasets for given uri
*
* @param $uri uri string
*
* @return int distinct existing datasets
*/
private function countUriPattern($uri)
{
$query = new Erfurt_Sparql_Query2();
$query->setDistinct(true);
$unions = new Erfurt_Sparql_Query2_GroupOrUnionGraphPattern();
$subjectVar = new Erfurt_Sparql_Query2_Var('s');
$query->addProjectionVar($subjectVar);
// create six temporary vars (not selected in query)
$tempVars = array();
for ($i = 0; $i < 6; $i++) {
$tempVars[] = new Erfurt_Sparql_Query2_Var('var' . $i);
}
$singlePattern = new Erfurt_Sparql_Query2_GroupGraphPattern();
$singlePattern->addTriple($subjectVar, $tempVars[0], $tempVars[1]);
$unions->addElement($singlePattern);
$singlePattern = new Erfurt_Sparql_Query2_GroupGraphPattern();
$singlePattern->addTriple($tempVars[2], $subjectVar, $tempVars[3]);
$unions->addElement($singlePattern);
$singlePattern = new Erfurt_Sparql_Query2_GroupGraphPattern();
$singlePattern->addTriple($tempVars[4], $tempVars[5], $subjectVar);
$unions->addElement($singlePattern);
$query->getWhere()->addElement($unions);
$filter = new Erfurt_Sparql_Query2_ConditionalOrExpression();
$filter->addElement(new Erfurt_Sparql_Query2_Regex($subjectVar, new Erfurt_Sparql_Query2_RDFLiteral('^' . $uri), new Erfurt_Sparql_Query2_RDFLiteral('i')));
$query->addFilter($filter);
$result = $this->_owApp->erfurt->getStore()->countWhereMatches($this->_model->getModelIri(), $query->getWhere(), 's', true);
return $result;
}
/**
* Constructor
*/
public function __construct(Erfurt_Store $store, Erfurt_Rdf_Model $graph)
{
// system variables
$this->_store = $store;
$this->_config = OntoWiki::getInstance()->config;
$this->_logger = OntoWiki::getInstance()->logger;
$this->_eventDispatcher = Erfurt_Event_Dispatcher::getInstance();
if (isset($this->_config->system->inference) && !(bool) $this->_config->system->inference) {
$this->_inference = false;
}
// data variables
$this->_graph = $graph->getModelIri();
$this->_model = $graph;
$this->_titleHelper = new OntoWiki_Model_TitleHelper($this->_model, $store);
// $this->_titleProperties = array_flip($this->_config->properties->title->toArray());
$this->_titleProperties = array_flip($graph->getTitleProperties());
}
protected function _fetchDescription($maxDepth)
{
$query = new Erfurt_Sparql_SimpleQuery();
$query->setProloguePart('SELECT ?p ?o')->setWherePart(sprintf('{<%s> ?p ?o . }', $this->getIri()));
$description = array();
$result = null;
if ($this->_model) {
$result = $this->_model->sparqlQuery($query, array('result_format' => 'extended'));
} else {
$result = Erfurt_App::getInstance()->getStore()->sparqlQuery($query, array('result_format' => 'extended'));
}
if ($maxDepth > 0 && $result) {
foreach ($result['results']['bindings'] as $row) {
$property = $row['p']['value'];
$this->_descriptionResource($property);
$currentValue = array('type' => $row['o']['type'], 'value' => $row['o']['value']);
if ($row['o']['type'] == 'uri') {
$this->_descriptionResource($row['o']['value']);
} else {
if ($row['o']['type'] == 'typed-literal') {
$currentValue['type'] = 'literal';
$currentValue['datatype'] = $row['o']['datatype'];
} else {
if (isset($row['o']['xml:lang'])) {
$currentValue['lang'] = $row['o']['xml:lang'];
}
}
}
if (!array_key_exists($property, $description)) {
$description[$property] = array();
}
array_push($description[$property], $currentValue);
if ($row['o']['type'] === 'bnode') {
$nodeId = $row['o']['value'];
$bNode = self::initWithBlankNode($nodeId, $this->_model);
$nodeKey = sprintf('_:%s', $nodeId);
$description[$nodeKey] = $bNode->getDescription($maxDepth - 1);
}
}
}
return array($this->getIri() => $description);
}
/**
* Transform a given string to full URI using the models namespaces if it
* is a qname or check the uri if it is not a qname
*
* @param $qname the input qname or uri candidate
* @param $model the Erfurt model which is used to check for namespaces
*/
public static function getFromQnameOrUri($qnameOrUri, Erfurt_Rdf_Model $model)
{
// test for qname
if (preg_match(self::$_regExpQname, (string) $qnameOrUri) == 0) {
// input is not a qname so test for Uri-ness and return uri
if (!self::check($qnameOrUri)) {
throw new Erfurt_Uri_Exception('The supplied string is neither a valid Qname nor Uri by syntax.');
} else {
// return checked Uri
return $qnameOrUri;
}
} else {
// input is qname so split it and build Uri from namespace if possible
$parts = explode(':', $qnameOrUri);
if (count($parts) > 1) {
$prefix = $parts[0];
$localName = $parts[1];
$namespace = $model->getNamespaceByPrefix($prefix);
} else {
// it is a local name only
$localName = $qnameOrUri;
$namespace = $model->getBaseIri();
}
$uri = $namespace . $localName;
if (!self::check($uri)) {
throw new Erfurt_Uri_Exception('The given qname "' . $qnameOrUri . '" results in an invalid Uri "' . $uri . '".');
} else {
// return constructed and checked Uri
return $uri;
}
}
}
public function testGetBaseIriWithEmptyBaseReturnsModelIri()
{
$this->markTestNeedsTestConfig();
$model1 = new Erfurt_Rdf_Model('http://example.org/');
$model2 = new Erfurt_Rdf_Model('http://example.org/', 'http://example.org/resources/');
$this->assertSame('http://example.org/', $model1->getBaseIri());
$this->assertSame('http://example.org/resources/', $model2->getBaseIri());
}
