function loadDataFromItem()
{
$uri = $this->ConfigGraph->getCompletedItemTemplate();
$this->list_of_item_uris = array($uri);
$viewerUri = $this->getViewer();
$this->viewQuery = $this->SparqlWriter->getViewQueryForUri($uri, $viewerUri);
if (LOG_VIEW_QUERIES) {
logViewQuery($this->Request, $this->viewQuery);
}
$response = $this->SparqlEndpoint->graph($this->viewQuery, PUELIA_RDF_ACCEPT_MIMES);
$pageUri = $this->Request->getUriWithoutPageParam();
if ($response->is_success()) {
$rdf = $response->body;
$this->DataGraph->add_rdf($rdf);
$this->DataGraph->add_resource_triple($pageUri, FOAF . 'primaryTopic', $uri);
$label = $this->DataGraph->get_first_literal($uri, SKOS . 'prefLabel');
if (!empty($label) || ($label = $this->DataGraph->get_label($uri))) {
$this->DataGraph->add_literal_triple($pageUri, RDFS_LABEL, $label);
}
$this->DataGraph->add_resource_triple($uri, FOAF . 'isPrimaryTopicOf', $pageUri);
$this->DataGraph->add_resource_triple($this->Request->getUri(), API . 'definition', $this->endpointUrl);
if ($datasetUri = $this->ConfigGraph->getDatasetUri()) {
$this->DataGraph->add_resource_triple($pageUri, VOID . 'inDataset', $datasetUri);
$voidRequest = $this->HttpRequestFactory->make('GET', $datasetUri);
$voidRequest->set_accept(PUELIA_RDF_ACCEPT_MIMES);
$voidResponse = $voidRequest->execute();
if ($voidResponse->is_success()) {
$voidGraph = new SimpleGraph();
$base = array_shift(explode('#', $datasetUri));
$voidGraph->add_rdf($voidResponse->body, $base);
if ($licenseUri = $voidGraph->get_first_resource($datasetUri, DCT . 'license')) {
$this->DataGraph->add_resource_triple($this->Request->getUri(), DCT . 'license', $licenseUri);
} else {
logDebug($datasetUri . ' has no dct:license');
}
} else {
logDebug("VoID document could not be fetched from {$datasetUri}");
}
}
} else {
logError("Endpoint returned {$response->status_code} {$response->body} View Query <<<{$this->viewQuery}>>> failed against {$this->SparqlEndpoint->uri}");
$this->setStatusCode(HTTP_Internal_Server_Error);
$this->errorMessages[] = "The SPARQL endpoint used by this URI configuration did not return a successful response.";
}
$this->pageUri = $pageUri;
}
function test_get_first_resource_ignores_literals()
{
$g = new SimpleGraph();
$g->add_resource_triple('http://example.org/subj', 'http://example.org/pred', 'http://example.org/obj');
$g->add_literal_triple('http://example.org/subj', 'http://example.org/pred', 'literal');
$this->assertEquals("http://example.org/obj", $g->get_first_resource('http://example.org/subj', 'http://example.org/pred'));
}
/**
* Return the current access status for the store.
*/
function get_access_status()
{
$accessStatusUri = $this->uri . '/access-status';
if (empty($this->request_factory)) {
$this->request_factory = new HttpRequestFactory();
}
$request = $this->request_factory->make('GET', $accessStatusUri, $this->credentials);
$request->set_accept(MIME_RDFXML);
$response = $request->execute();
if ($response->is_success()) {
$graph = new SimpleGraph($response->body);
$accessMode = $graph->get_first_resource($accessStatusUri, 'http://schemas.talis.com/2006/bigfoot/configuration#accessMode');
return $accessMode;
} else {
throw new Exception('Error determining access status: ' . $response->to_string());
}
}
