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<?php
class Resolver
{
private $model;
/**
* Initializes the Resolver object
*/
public function __construct($model)
$this->model = $model;
}
private function startsWith(string $prefix, string $target) : bool {
return strpos($target, $prefix) === 0;
* Resolve the URI using the most appropriate resolver and return the
* result as an ExternalResource.
* @param string $uri URI to resolve
* @return EasyRdf\Resource
public function resolve(string $uri, int $timeout): ?EasyRdf\Resource {
if (preg_match('|http://id.loc.gov/[^/]+/[^/]+/.+|', $uri)) {
$res = new LOCResource($this->model, $uri);
} elseif ($this->startsWith('http://www.wikidata.org/entity/', $uri)) {
$res = new WDQSResource($this->model, $uri);
} else {
$res = new LinkedDataResource($this->model, $uri);
return $res->resolve($timeout);
NatLibFi /
Skosmos
