/**
* Transform a resource to an elastica document.
*
* @param $uri
* @param $index
* @param $type
*
* @return Document|null
*/
public function transform($uri, $index, $type)
{
if ($index && $this->serializerHelper->isTypeIndexed($index, $type)) {
$frame = $this->serializerHelper->getTypeFramePath($index, $type);
$phpClass = TypeMapper::get($type);
if (!$phpClass) {
$phpClass = "EasyRdf\\Resource";
}
$jsonLd = $this->jsonLdSerializer->serialize(new $phpClass($uri), $frame, array("includeParentClassFrame" => true));
$graph = json_decode($jsonLd, true);
if (!isset($graph['@graph'][0])) {
return;
}
$resource = $graph['@graph'][0];
$resource['@id'] = $uri;
$json = json_encode($resource);
$json = str_replace('@id', '_id', $json);
$json = str_replace('@type', '_type', $json);
$index = $this->configManager->getIndexConfiguration($index)->getElasticSearchName();
return new Document($uri, $json, $type, $index);
}
return;
}
